MANUAL - maytau.ut.edu.vnmaytau.ut.edu.vn/userfiles/files/manual_SQ-Z_eng.pdfMANUAL Once-Through Boiler (gas fired) Please use Miura Boiler after reading this Manual accurately and

MANUALOnce-Through Boiler

(gas fired)

Please use Miura Boiler after reading this Manualaccurately and keep it at the place visible to you sothat you may read it conveniently any time.

KOREA MIURA CO., LTD

MANUAL No. SQ-ZSG 003-201106

SQ-800ZSG, HSG

SQ-1500ZSG, HSG

SQ-1700ZSG, HSG

SQ-2000ZSG, HSG

Thank you very much for yourunchangeable encouragement onMIURA BOILER and purchasing itat this time.

Decide a person in charge of MIURA BOILER.This manual is a guide for using MIURA BOILER.Be sure to decide a person in charge of it befor using and theresponsible person shall use it after understanding the manual fully.And then proceed to working through carrying this manual with youall the time.

Contents of the manualThe major contents of this manual are classified into SQ type outline,major function, inspection on operation system before using,operation, repair & inspection and trouble & its remedy.

GuaranteeThe matters to be observed on operation and safety described in thismanual are related only to the case that the boiler is used only for thedesignated purpose.Never use the method that is not described in this manual. We are notresponsible for the using method that is not recorded in it.

Contact point on the product and manualIf you have any question on the purchased product or this manual,contact our A/S office any time without further hesitation.

2. Using purpose and operation principle

1. Terminology

·SQ-800HSG………………………………………………………………………………………………… 4·SQ-800ZSG ………………………………………………………………………………………………… 5·SQ-1500HSG ……………………………………………………………………………………………… 6·SQ-1500HSG(Dam) ……………………………………………………………………………………… 7·SQ-1500ZSG ……………………………………………………………………………………………… 8·SQ-1500ZSG(Dam)………………………………………………………………………………………… 9 ·SQ-1700HSG ……………………………………………………………………………………………… 10·SQ-1700HSG(Dam) ……………………………………………………………………………………… 11·SQ-1700ZSG ……………………………………………………………………………………………… 12·SQ-1700ZSG(Dam) ……………………………………………………………………………………… 13·SQ-2000HSG ……………………………………………………………………………………………… 14·SQ-2000ZSG ……………………………………………………………………………………………… 15

·Careful matters before using the machine………………………………………………………… 16·Simple clothes and wearing of protective devices ……………………………………………… 17·When an abnormality is found out…………………………………………………………………… 18·Careful matters when using the Boiler……………………………………………………………… 19·Preparation of fire extinguisher and emergency medicine …………………………………… 19·Prohibition of remodeling without permission …………………………………………………… 20·Request for moving a boiler and transferring it ………………………………………………… 20

·Unit Identification and Functions of Control Panel …………………………………………… 24·Display Content and Directions ……………………………………………………………………… 25·Steam Pressure Settings ……………………………………………………………………………… 29·Display Settings ………………………………………………………………………………………… 30·Alarm Display Mode……………………………………………………………………………………… 31·How to Read Meter ……………………………………………………………………………………… 32·Operation of main steam V/V ………………………………………………………………………… 33

3

3. Title of each part 4

4. Basical careful matters 16

5. Inspection before using 21

6. Using method of operation system 24

7. Inspection and preparation befor starting 34

1

·Inspection items before using ………………………………………………………………………… 21

CONTENTS

·In case of Possible destruction by freezing ……………………………………………………… 43·Water drain of water supply P/P …………………………………………………………………… 44·When a boiler is not used for a long period ……………………………………………………… 45·Table of the place and time for inspection and cleaning ……………………………………… 46·Inspection on chemicals injection system ………………………………………………………… 47·Inspection on soft water ……………………………………………………………………………… 50·Inspection on gas pressure …………………………………………………………………………… 51·Inspection on steam pressure ………………………………………………………………………… 52·Blow method ……………………………………………………………………………………………… 53·Ventilator Filter Cleaning ……………………………………………………………………………… 55·Claning of water supply strainer …………………………………………………………………… 57·Cleaning of water supply tank inside ……………………………………………………………… 59·Water quality analysis ………………………………………………………………………………… 60·Safety V/V ………………………………………………………………………………………………… 61

·If the status display lamp in yellow (Notice) is switched on ………………………………… 62·Remedy before request for repair ……………………………………………………………………64·To Air-Bleed Water Pump …………………………………………………………………………… 67·Check on a connection terminal of electrode preservation device …………………………68·To Reset Receiver (Optional)…………………………………………………………………………… 69·To Reset Overcurrents in Ventilator ………………………………………………………………… 69·Check Connection of Wind Pressure Sensor Pipes …………………………………………… 70

·Repair control service…………………………………………………………………………………… 73·Use the convenient repair maintenance contract services …………………………………… 73·Use rated product of leading maker for boiler chemials ……………………………………… 74

9. Repair & inspection

10. Trouble & its remedy

11. Specification

12. Appendix

·Starting……………………………………………………………………………………………………… 36·Inspection matters during operation………………………………………………………………… 37·Stop…………………………………………………………………………………………………………… 38·Instructions for More Convenience (Program Functions)……………………………………… 39

8. Operation 36

43

62

72

73

1

1. Terminology

The following captioned terminology has been used so that efficient handling together with safetymay be made.Please use the Boiler after understanding captioned terminology fully.

The number beside this mark displays related page.☞This mark displays prohibition.Specific prohibition contents in the middle of this code and near itare displyed.

Warning

Attention

Note

Meaning of sysmbol mark

In case of incorrect handling it may cause the user tobe killed or injured seriously.

In case of incorrect handling it may cause the user tobe injured or incur material damage.

In case convenient matters and points are explained inorder to prevent the trouble of machine body and carryout efficient work.

2

Meaning

Action of inspecting inside leakage of gas V/V.

The condition of supplying water into the inside of boiler.

The condition of completing prior action in order that boiler operation may be made.

Ventilation of inside of combustion chamber before starting fire.

The condition of fire of burner.

Ignition of main burner.

The condition of 50% fire of maximum combustion capacity.

The condition of fire of maximum combustion capcity.

In order to restrict gas pressure change at the time of stop at high fire, stopping without low fire.

Ventilation of inside of combustion chamber after fire.

When designated water level is not reached, an action without transition to ignition.

The condition of operation standby due to isolation by pressure.

Attached substances、impurities such as calcium and magnesium contaied in the water.

Impurities sunk in boiler inside.

The water before water treatment.

The water removed from calcium and magnesium contained in the water.

The water to be treated and trasferred to boiler or the condition of water transferring.

Amount per 1 hour of full steam to be made from supplied water.

The phenomenon that impurites and moisture in boiler water together with steam are given off.

Draining the water in boiler inside.

Tube that boiler water flows in inside and is in contact with combustion gas.

System heating the supplied water to reduce O₂melted in the water.

The condition that P/P is not operated normally with influx of air into P/P.

■ The terminalogies that have been used in this manual are collected and check the themand their meaning.

SQ SERIES

Terminology

Under gas leakage inspection

Under water supply

Operation standby

Pre purge

Pilot ignition

Main try

Low fire

High fire

Post fire

Post purge

Low water

Combustion standby

Scale

Sludge

Original water

Soft water

Water supply

Rated evaporation

Carry-over

Blow

Water pipe

O₂LIMBER

Mixed influx of air

3

2. Using purpose and operation principle

■ Original water unitSystem pressurizing original water up to pressure reguired for water softening device.

■ Water softening systemNormally, orignial water is hard one. It is system to change it as soft one.

Hardness leakage warning deviceSystem monitoring the soft water treated in water softening device.

■ Chemicals injection systemSystem supplying chemicals capable of preventing the corrosion of boiler to it.

■ Water supply tank (condensed water tank)System storing the water returned after using softened water and steam and then supplying therequired water at the time of water supply.

■ Tubular boilerThe water pressuized and influxed into water pipe is heated by a burner.The heated water is being evaporated slowly and supplied to load side.

NoteNote

City water and underground one to be used widely as boiler water can melt various impuritiesand are various in their amount. In case of using the water with impurities without anytreatment the efficiency and life of boiler may be influenced significantly by scale, corrosion,carryover, etc. Our company has been producing the water treatment system for exclusive useof MIURA BOILER by kind. Above item is the kind of standard water treatment system. Foran optimum water treatment system of boiler of user, consult our A/S office freely.

4

3. Title of each part

No Description Qt’y No Description Qt’y No Description Qt’y1 Boiler body

Corry rodTransformerGas strainerControl boxSafety valveMain steam valveBlower ductStrainerControl panelSteam pressure gauge

12 13 14 15 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 132 1

1) SQ-800HSGBM11 Spec.

Air pressure switchTwo connected water level controlCorry rodMI check valveEconomizer carry rodBedSteam pressure sensorWind boxInspection holeAir pressure switchBlower inhalation cover

Pilot burnerEconomizerEmergency stop buttonSeparatorWater feed pumpBlower motorBlowerDamper motorSteam pressure swithNeutraliztion treatment tank

5

2) SQ-800ZSG



12 13 14 15 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 1


Pilot burnerEconomizerEmergency stop buttonSeparatorWater feed pumpBlower motorBlowerDamper motorSteam pressure swith

6

SQ SERIES

3) SQ-1500HSGBM11 Inverlter Spec.



12 23 14 15 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 1


Pilot burnerEconomizerEmergency stop buttonSeparatorWater feed pumpBlower motorBlowerDamper motorSteam pressure swith

7

4) SQ-1500HSGBM11 Damper Spec.


Corry rodTransformerTeeControl boxSafety valveMain steam valveBlower ductStrainerControl panelSteam pressure gauge

12 23 14 15 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 132 1

Water level gaugeTwo connected water level controlEconomizerBall valveEconomizer carry rodBedChimneyWind boxInspection holeFlame detect holeBlower inhalation cover

Pilot burnerBurnerGas strainerSeparatorWater feed pumpBlower motorBlowerDamper motorSteam pressure swithNeutraliztion treatment tank

8

SQ SERIES

5) SQ-1500ZSGBM11 Inverter Spec.


Corry rodTransformerSteam pressure swichControl boxSafety valveMain steam valveBlower ductStrainerControl panelSteam pressure gauge

12 23 14 25 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 1


Pilot burnerBurnerGas strainerSeparatorWater feed pumpBlower motorBlowerDamper motorInverter

9

6) SQ-1500ZSGBM11 Damper Spec.



12 23 14 25 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 1


Pilot burnerBurnerGas strainerSeparatorWater feed pumpBlower motorBlowerDamper motor

10

SQ SERIES

7) SQ-1700HSGBM11 Inverter Spec.



12 23 14 15 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 132 133 1


Pilot burnerBurnerGas strainerSeparatorWater feed pumpBlower motorBlowerDamper motorSteam pressure swithNeutraliztion treatment tankInverter(Blowr)

11

8) SQ-1700HSGBM11 Damper Spec.



12 23 14 15 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 132 1


Pilot burnerBurnerGas strainerSeparatorWater feed pumpBlower motorBlowerDamper motorSteam pressure swithNeutraliztion treatment tank

12

SQ SERIES

9) SQ-1700ZSGBM11 Inverter Spec.



12 23 14 25 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 1


Pilot burnerBurnerGas strainerSeparatorWater feed pumpBlower motorBlowerDamper motorInverter

13




12 23 14 25 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 1



14

SQ SERIES

11) SQ-2000HSG



12 23 14 25 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 131 132 133 1


Pilot burnerBurnerGas strainerSeparatorWater feed pumpBlower motorBlowerDamper motorInverter(blower)Inverter(water feed pump)Neutraliztion treatment tank




12 23 14 25 16 17 18 19 110 111 1

12 113 114 115 116 217 118 119 120 121 122 1

23 124 125 126 127 128 129 130 1



15

16

Warning

Careful matters before using the machine

When operating MIURA Boiler, observe all of the following careful matters.If not observed, personal accident may take place.

20page☞

Be sure to carry out a trialoperation.Carry out a trial operation by a person in charge og A/S after checking the installation.

Be sure to designate a person incharge of handling the machine.When using the machine, be sure to designate a person responsible for handling and the person use it after understanding this manual fully.

Don't misuse the machine.Never operate the machine and do not repair work until thismanual is understood fully.

Never use boiler water asdringking one.Since the boiler water can be changed by used water quality and piping materials, never use it as drink one.

Report are required when usingthe machine.In using the boiler various reports are required. Consult a person in charge of our marketing staff for the detailed matters.

Check the installation condition.Check that the machine has been installed accurately according to theinspection before using.

4. Basic careful matters

17

Warning

Simple clothes and wearing of protective devices

Do work in simple clothes.Never operate the machine and do not repair work throngh wearing loose clothes, accessories, etc. easily to be caught on valves and machine parts.Never wear the clothes attached with oils likely to catch a fire.

Wear protective devices.Wear helmet, protective glasses,safety shoes, gloves, etc.according to work. In particular,when injecting chemicals, wearprotective glasses and rubbergloves so that the hands andeyes may not be in contact with them.

Precautions for Warning Labels

Locations to attach warning labels.Warning labels are found in dangerous areas. For more information on locations, please refer to the Section 3 [Unit Identification and Functions].

WarningLabels Management.If the warning labels are torn or stained, replace them with new ones. For more information on warning labels, please contact our Maintenance Office.

18

When an abnormality is found out


When an abnormality such as abnormal sound, smell, smoke, fuel leakage, etc. is found out,lock up fuel valve directly after turning operation S/W as "OFF". A danger such as a fireor a blast may take place.

Warning

Fire prohibition when gasis leaked out.Change an air through openingthe door.At this time, never flicker S/Wof ventilator and etc.thoughtlessly, which may causea blast accident.

Abnormality handlingObserve the instruction of ourcompany on abnormalityhandling.Never use the machine in thestate that the cause forabnormality has not beenremoved fully, which may lead todangerous fire, blast, etc.

SQ SERIES

19

Careful matters when using the boiler

Preparation of fire extinguisher and emergency medicine

Warning

Install a fire extinguisherwithout fail.In preparation for anyemergency, install a fire extinguisher and understand its using method.

Prepare a box for emergencymedicine.Designate the storing place of emergency medicine box and prepare it.

Never touch the machinethoughtlessly when operating.Don't touch other part than operationone when operating the machine, which may cause dangerous electric shock, scald, etc.

Use ventilation equipment (exhaust fan) when operatingWhen operating, make an operation together with ventilation and don't close ventilation port.Intoxication of carbon monoxide by incomplete combustion may take place.

Strict separdtion of boiler fuel frominflamable substances* In case boiler fuel is placed near inflamable materials a fire may break out.

* Never place inflamable substances near the boiler.

* Never place inflamable substances inside a control box.

Use designated fuel.In case of using otherfuel than designated one a blast may take place.

20

Warning

Prohibition of remodeling without permission

Request at the time of moving and resale


Please contact our company at thetime of moving and resale of boiler.For operation of boiler, a proper installationwork and an optimum additional device arerequired. At the time of moving and resaleof boiler, contact our marketing office without fail. Other installation work and additional device connection than those designated by us are prone to cause personal accident so you had better not do that for the safety.

At the time of resale attach themanual.Since the manual is required for boileroperation, hand over it to enduser togetherat the time of resale.

Never remodel the machine.Remodeling not recommended byour company may cause theproblems in safety such asconnection to related additionaldevices, piping. etc. In case ofremodeling, consult our A/S staffin advance.Our company is not responsible forthe remodeling without our priorapproval.

SQ SERIES

21

Warning

Before using MIURA Boiler, check the following installation item and make sure that theyare installed correctly. The danger of serious accident is existent all the time so you arerecommended not to use the machine under incorrect installation situation.

■ Boiler roomIs ventilation device (exhaust fan)installed?Check if the ventilator and exhaust fan areinstalled.If a sufficiant air exhaust is unavailable, dangeroustoxic of carbon monoxide and blast by incompletecombustion may take place as well.

■ Boiler bodyIs boiler body installed on theincombustible material base?Check if the material of base is not made of woodsuch as combustible material.If it is used, a fire and other accidents may takeplace.

Is the distance between boiler andcombustible materials sufficient?Boiler installation shall not be made in theinflamable and dangerous material handling placeand make sure that the distance from combustiblematerials is farther than 45cm.

■ Fuel pipingIs not the fuel in fuel piping leaked out?Is a gas leakage alarm installed?Install a gas leakage alarm in LPG or LNG forexclusive use boiler.LPG is heavier than air, thereby causing the gasblast through being accumulated on the floor.LNG is lighter than air, thus bringing about the gasblast through being collected on the ceiling.

Inspection item before using

Exhaust deviceVentilator

Combustiblematerial

Farther

than

Whthin

Inflamable material

5. Inspection before using

Warning

22

■ Electric workIf warning matters on electric work are not observed,it may lead to electric shock or other serious accident.

Is power source only for boiler?Make sure that an exclusive use breaker as powersource of boiler is attached.

Is electric leakage breaker attached?Check if a breaker attached to main power source isan electric leakage one.

Do you use designated product for cablethickness?Check if cable thickness and breaker capacity are inaccordance with designated specification or not.

Is ground wiring connected to earthterminal?Make sure that ground wiring is connected to earthterminal inside a boiler control box.

Do you use the external power inside thecontrol box? If the answer is yes, you should understand that itmay lead to fire accident. Please check if there is noexternal power supply connected.

■ Installation of exhaust tubIs penetration part of exhaust tubcomposed of incombustible materials?Make sure that penetration part of exhaust tub iscomposed of incombustible materials. If it is composedof combustible materials a fire may take place.

Are combustible materials not near thecircumference of exhaust tub?Check if inflamable materials are not near thecircumference of exhaust tub. If they are existentnearby, it may be the cause for a fire.

Is the connection part airtighted and fixedsecurely?Check if airtightness and fixation of it are made fullyor not. If not, a toxication accident by exhaust gasleakage may take place.

Electric leakage breaker

Electric leakage breaker

Breakercapacity

Wiring

Earth terminal

Exhaust tub

Incombustiblematerials

SQ SERIES

WWaarrnniinnggIItt mmaayy ccaauussee ffiirree oorr ootthheerr

ccrriittiiccaall aacccciiddeennttss..Never connect any devices other than asdesignated by the company.

Warning

23

Before using MIURA Boiler, check the following installation item and make sure that theyare installed correctly. The danger of serious accident is existent all the time so you arerecommended not to use the machine under incorrect installation situation.

■ Safety V/V discharge pipingIs there not any danger in the direction ofthe discharge piping end?Make sure that the direction is not dangerous topeople even though hot water is discharged at thedischarge piping end?If the end of piping is toward people there is a dangerof a burn and other accidents at the time of hot waterdischarge.

Does the discharge piping not move withreaction by discharging?Make sure that the discharge piping is fixed securely.If not, the piping will move with reaction bydischarging, thereby causing a burn and other accidentsat the time of hot water discharge from piping.

■ Steam PipeIs it fully insulated?If the pipe passes through the inflammable walls, theinsulation is highly critical. Please check if it is fullyinsulated. Otherwise, it may lead to fire accidents.

■ Blow pipingDoes piping not move with reaction by blowwater?Checking if piping is fixed securely or not.If not, the piping will move with reaction bydischarging, thereby causing a burn and other accidentsat the discharge of hot water discharge from piping.

Is the end opened to safe place such as bitand etc?Check if the end of drain piping is opened to safe placesuch as a bit and etc.If the end of piping is installed in the place withoutdrain device, the hot water discharge when drainingthe water may cause a scald and other accidents.

Dischargepiping Safety V/V

Drain pipingBit

Wall

Adiabatic treatment

24

6. Using method of Operational system

Unit Identification and Functions of Control Panel

■Identification and Functions of Switches

SSttaattuuss DDiissppllaayy LLaammpp DDiissppllaayy EEmmeerrggeennccyy SSttoopp BBuuttttoonnThis is used for shutting down power immediately forcontingency. (Switch off the Operations Switch forstopping the equipment at usual times.)

SSeelleecctt SSwwiittcchhIt flips through the items of each mode, moves thevalues up and down and selects letters.

OOppeerraattiioonnss SSwwiittcchhTurn on this switch to control water level and theamount of chemical injection. Then, the boilerstarts to burn. A single operation of this switch repeats theON/OFF modes. Shut it down to OFF position to reset the AlarmReset Display.

DDaattaa SSwwiittcchhThis switch is for thermal management of astatus monitor, flipping through time settingranges for program initiations/stoppage, andother items of each mode. It stops a buzzer if the alarm sets off. (Somemay not stop.)If the alarm sets off, it resets the Alarm Display.

25

Display Content and Directions

■Operation status of content(Display mode)

Display items in the upper part of the display

Display Content

Display items Operation status of boilerOperation-stop Operation Switch OFFPre-heating Fuel temperature interlockStandby Standby mode

Water supply underway Low water level interlockPre-purge Pre-purge

Ignition try-outs Ignition try-outsPilot Pilot only

Main try-outs Main try-outsInverter Implementation Inverter Implementation

Low combustion Low combustion High combustion High combustion

Purge Spark monitoringForced purge Forced purgeForced pilot Forced pilot

Forced main try-outs Forced main try-outsForced Inverter Implementation Forced Inverter ImplementationForced low combustion Forced low combustionOil pump air bleeding Oil pump air bleeding

Stop-blow Stop-blowPost fire Post fire

Display items in the upper part of the display

Items Examples of Display Items Below

Steam Pressure Steam Pressure 0.75MPa

Exhaust Gas Temperature Exhaust Gas Temperature 120℃

Water Temperature Water Temperature 60℃

Scale Monitor Mode 스Scale Monitor Mode 200℃

Overheated Thermostat Temperature Overheated Thermostat Temperature 200℃

Frame Electric Currents Fire Sensor 10.0㎂

Frame Electric Currents 2 Fire Sensor 2 10.0㎂

Fuel FlowGas Fuel Flow 50m3/hr

Fuel Oil Flow 50L/h

Blow Time Left Blow Time Left 8Hr

Stop-blow Time Left Stop-blow Time Left 10Hr

Wind Pressure Wind Pressure 5000Pa

Concentrated Blow Edge Blow Edge Operation ON

Conductivity Conductivity within Pipes 300mS/m

Water Level Display Water Level LMSD

Calendar Date Calendar 08/04/01

Calendar Time Time 08:00

NNoottee

Display items automatically change to the status monitor

mode and display steam pressure in the event that neither

switch is under operation even temporarily.

If it goes out of the front of the boiler and remains that way

for a long while, it displays lights-out or operation-stop.

Any operation of either of the switches will revert the display

luminance.

- Display Example -

WWaatteerr LLeevveellIt displays the waterlevel of a boiler.

Operation status of the boiler inthe upper part of the display

Pre-purgeSteam Pressure

Selected status monitor inthe lower part of the display

26

SQ SERIES

1. DATA Press the Data Switch.Each operation will display the list of modes from Status Monitor,Thermal Management to Alarm Display by turns.

↓Status Monitor

↓Thermal Management

↓Program Settings

↓Switch to User Operation Mode

↓Switch to Alarm Display Mode

■Functions of Each Mode

■ DATA Data Select Switch Operations

Directions on Display ( DATA SELECT Switch Operations)

Common ModeIn this mode, the status monitor, thermal management, program function settings, user operation, andalarm displays are available for customized selection.

Status Monitor ModeIn this mode, the data in relation to boiler management such as steam pressure and exhaust gastemperature are available for viewing. For more information on display items, please refer to the page 30.

Thermal Management ModeIn this mode, the data in relation to thermal management such as boiler efficiency and fuel consumptionare available for viewing. For more information on display items, please refer to the page 32.

User Operation ModeIn this mode, you can set steam pressures and specific dates. For more information on setting time(Directions on Program Time Settings), please refer to the page 33.

Alarm Display ModeIn this mode, the history of alarms and notices of up to previous 7 cases are available for viewing bydates and time. For more information on this mode, please refer to the page 36.

You can switch to one of the four modes ? Status Monitor, Thermal Management, User Operation and AlarmDisplay Mode by pressing the switch.

1. SELECT Turn the Select Switch. Turning the Select Switch flips through the display items or changesthe set values.

■ SELECT Select Switch Operations

27

In the Thermal Management mode, the thermal management data specified in 17 items are available for viewing. Thedata will be displayed on the lower bottom of the display screen.

Thermal Management

NNoottee..

The starting time to be set as the criteria time can be selected from any hour at your discretion. (The initial timeis set at 0:00). For specific settings, leave it to our maintenance manager.

- Display Examples -

It displays theaggregated data fromthe daily criteria timeto the current timepoint (criteria time). Criteria Time

It displays the data of 24 hoursfrom the previous round’s criteriatime to this round’s counterpart.

00:00~01:00

00:00~02:00

The data becomerenewed every hour.

It displays the averagedata from the dailycriteria time to thecurrent time point(criteria time).

It displays theaggregated data fromthe daily criteria timeto the current timepoint (criteria time).

©©©

※ Applicable only to the water flowmeter installment (optional).

Current operation status of a boiler

Thermal management data items

Boiler efficiency of high combustion 96.0%

Display items for thermal management mode

No. Thermal management data items Examples of displays on the bottom of the screen

1 Number of ignition Number of fire initiation 10

2 Gas low combustion time Gas low combustion time 05:00

3 Gas high combustion time Gas high combustion time 05:00

4 Oil-fired low combustion time Oil-fired low combustion time 05:00

5 Oil-fired high combustion time Oil-fired high combustion time 05:00

6 Exhaust gas average temperature (low-combustion) Exhaust gas average temperature (low-combustion) 100℃

7 Exhaust gas average temperature (high-combustion) Exhaust gas average temperature (high-combustion) 120℃

8 Oil-fired exhaust gas average temperature (low-combustion) Oil-fired exhaust gas average temperature (low-combustion) 100℃

9 Oil-fired exhaust gas average temperature (high-combustion) Oil-fired exhaust gas average temperature (high-combustion) 120℃

10 Water average temperature Water average temperature 20℃

11 Gas boiler efficiency Gas boiler efficiency 96.0%

12 Oil-fired boiler efficiency Oil-fired boiler efficiency 96.0%

13 Gas fuel consumption Gas fuel consumption 100m3N

14 Functional fuel consumption Oil consumption 1kL

15 Amount of water Amount of water 000.00kL

16 Amount of evaporation Amount of evaporation 10.13t

17 Amount of concentrated blow Amount of concentrated blow 100L

0000::0000

0011::0000

0022::0000

0033::0000

28

SQ SERIES

In this mode, you can customize the settings for the current A.D. calendar year, month, date and steam pressure.

User Operation Mode

1. Press the Data Switch and select the UserOperation mode.

↓Steam pressure setting (low)

↓Differential (Low)

↓Steam pressure setting (low)

↓Time setting (year)

↓Time setting (month)

↓Time setting (date)

↓Time setting (hour)

↓Time setting (minute)

NNoottee..

For smooth data processing, it is required that the current time is set accurately. The time of the boiler is set from its shipment; still, it is advised that a user checks if the time is correctly set.

Press and hold the DataSwitch for User Operationmode.

2. Press and hold the Data Switch for 2seconds or longer to switch the mode to UserOperation. Operate the Data Switch to flip through theitems as the order shown below.

3. Press and hold the Data Switch for longerthan 2 seconds to release the User Operationmode.

Steam pressure setting (low)

0. 70MPa

29

■ Steam Pressure Settings

Settings List Content

Steam Pressure Settings (Low)

Differential (Low)또, 증기압력이 증기압력설정(조) 디스렌셜(저)의 압력까지 내려가

면 다시 고연소를이행합니다.

Steam Pressure Settings (High)

Differential (High)또 증기압력이 증기압력설정(고) 디스펜셜(고)의 압력까지 내려

가면 다시 연소동작으로 이행합니다.

NNoottee..

If neither switches work, it automatically switches to the Status Monitor mode and displays the steam pressureof the item no. 1. (In this case, the settings remain unchanged.)

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Please do not set the steam pressure (low/high)higher than 0.88MPa (9.0kgf/㎠). If you need to set a value higher than that, pleasecontact our office.

1. Press the Data Switch to bring up the UserOperation mode. Press and hold the Data

Switch for the UserOperation mode.

2. Press the Data Switch to select the steam pressuresettings screen you’d like to change.

3. Press the Select Switch to change the set pressure. .

4. Once the adjustment is done, press and hold the DataSwitch for longer than 2 seconds to release the UserOperation mode.The User Operation mode will be released. Unless you perform this process, the settings will remainunchanged.

5 Check if the pressure settings have changed as you desired.

Steam Pressure Setting (Low)

0. 70MPa

If the steam pressure crosses the set pressure limit, it changes to low combustion.

Additionally, if the steam pressure drops to the steam pressure limit (low) and

differential pressure (low), it changes to high combustion again.

If the steam pressure crosses the set pressure limit, it changes to a standby mode.

Additionally, if the steam pressure drops to the steam pressure limit (high) and

differential pressure (high), it changes to a combustion mode again.

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■ Display Settings

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Note that you cannot adjust time while using the program functions. Release the program functions beforeadjusting time. If neither switch is under operation even for a short while, it automatically enters the StatusMonitor mode and the steam pressure in the item no. 1 will be displayed.

User Operation ModePress and hold the DataSwitch.

Date Setting‘07 / 07 / 01

1. Press the Data Switch to bring up the User Operationmode.

2. Press the Data Switch to move to the mode you select.Align the current A.D. calendar.You can edit the time where it flickers.

3. Press the Data Switch to move to the mode you selectchange.

4. Use the Select Switch to change numbers. You can edit time by minute basis.

5. Once you complete the time adjustment, press and holdthe Data Switch for longer than 2 seconds to release theUser Operation mode.The User Operation mode will be released.Unless you perform this process, the settings willremain unchanged.

6. Check if the date and time settings have changed asyou desired.



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Press and hold the DataSwitch for alarm displayrecords.

64page☞1. Press the Data Switch and flip through the items toselect the Alarm Display mode.

2. Press and hold the Data Switch to bring up theAlarm Display mode. Or, operate a settings switch todisplay the examples of abnormality causes

- Examples -

- Examples of Abnormality Causes -

3. Press the Data Switch to bring up the [Alarm] or[Notice] as follows.

4. Press and hold the Data Switch for longer than 2seconds to release the Alarm Display mode

In this mode, the history of alarms and notices of the previous cases are available for viewing by dates and time. Additionally, the history of alarms and notices of up to previous 7 cases are available for viewing by pressing theData Switch. For more information on the display items of this mode, please refer to the Section 10[Troubleshooting].

Alarm Display Mode

Occurrence stage

Details of the previous alarms and notice

Operation status at the point of alarm occurrence: Date, hour, minute

25 ,0 1 : 1 5

Period for blow operation

Check the main body managementunder high combustion

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It displays the steam pressure inside the boiler. The Steam Pressure Display includes the AnalogIndicator and the Digital Indicator. For the analog, fine scales are applied for indicationwhile the digital version makes displays by units.

How to Read Meter

■Steam Pressure Display

It refers to the amount of water remaining insidethe boiler. To display the water level, there are the watergauge display and the status monitor from adisplay screen. Unless the amount of water is maintained throughthe water gauge display while the boiler is running,it alerts the abnormality state to keep the waterlevel safe. The status monitor displays the status ofelectrodes for water level inspection.

■Water Level Indicationa

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Note that the steam pressure display may varybetween analog indication and digital indicationdue to a difference in their indication method.

Pre-purgeSteam Pressure 0. 75MPa

<Analog Display>

<Digital Display>

<Water Level>

Water Level

High

Low

High CombustionWater Level L M S D

WaterLevel

High

Low

▲

▼

1. Prepare a ladder.

2. Check location and direction of main steam V/V.

3. Switch on and off the main steam V/V on the ladder.

Warning

* Since main steam V/V is located at high place and its footing is limited, operate it in properclothes(long sleeve, long pants, safety shoes, safety helmet, gloves, etc) when switching on and off.

* Since whole boiler body is in the high temperature state directly after stopping it, never touchother part than the handle of main steam V/V. If touched, you may incur a scald and other injury.

Operation of main steam V/V

NoteNote* In case a steam header is being installed during piping work, open main steam V/V.Main steam V/V of steam header plays a role of main steam V/V instead.

* Install countrcurrent prevention V/V (check V/V for steam) in steam piping between steamheader and boiler.

ClosedOpened

33

Warning

* Never jump up and down the ladder.When going up and down, be sure to hold the ladderwith both hands and one leg or one hand and bothlegs in order that you may go up and down safelyagainst the danger of falling down.

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Warning

* Don't operate the boiler with wet hands, which may

cause an electric shock.

Warning



1. Check if a short circuit breaker inside a control box isOFF or not.If it is ON, turn it as OFF.

2. Turn main power as ON.

■Check the following items before operating a boiler.

3. After opening air drain V/V of water pipe for about 5seconds, close it.

NoteNoteWhen main power is not used for a long time,turn it as OFF. Without it you may incur anelectric shock.

Caution

* In case even little pressure is left within the boiler(when a steam pressure gauge marks 0kg/㎠ above),do not open air drain V/V of water pipe. If it isopened, an eruption of steam may bring about aburn and etc.

4. After checking if the water is filled in water supplytank above 2/3, open V/V of water supply source andwater supply.

5. In accordance with 「Using method of operation systemand air drain of water supply P/P」in chapter 6, drainair from the water supply P/P.

Opened

Opened

Opened

7. Inspection and preparations before starting

35

6. Open gas main V/VIn accordance with 「Repair & inspection/ Gaspressure inspection」in chapter 9, check if indicatedvalue of gas pressure gauge is displayed asdesignateel one or not.

7. Pursuant to 「Repair & inspection/ Chemicalsinjection inspection」, check if designated amount ofchemicals is in chemicals injection TK or not.

8. According to 「Repair & inspection/ Soft waterinspection」in chapter 9, check if supply water ismade as soft one or not.

9. Check if main steam V/V is closed or not.If not closed, close it in accordance with「Usingmethod of operation system/ Operation of mainsteam V/V」in chapter 6.

10. Turn a short circuit breaker within a control box asON.

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33page☞

47page☞

Closed

Warning



Opened

36

1. Complete 「Inspection and preparations before starting」in chapter 7.

2. Turn the Operation SwitchON.* The status display lamp in green will be switched onand the water level control and the chemical injectioncontrol will begin. In this case, the status display lampwill be switched in red if the water comes below therequired leve

3. If the water reaches the required level, the statusdisplay lamp will be switched in green to start pre-purge.As for gas operations, the operation will sustaincontinuously.

* After the pre-purge motion is completed, it beginsignition and enters the pilot.

* After the main ignition is finished, it undergoes the lowcombustion state for about 10 seconds before enteringthe high combustion state.

4. Wait until an indicated value of steam pressure guagereaches the designated pressure one(5kg/㎡).

5. According to 「Using method of operation system/Operation of main steam V/V」in chapter 6, open mainsteam V/V slowly.

* By repeating low fire and high one alternately, supplythe designated pressure steam.

Starting(normal operation)

Opened

8. Operation

Warning

* Operate the ventilator such as the R-exhaust fan. If you neglect to ventilate air through the R-exhaustfan, it may lead to toxication or explosion from carbonmonoxide caused by combustion.

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Warning

* When finding out gas leakage, turn operation S/W as OFF immediately, close gas main V/V andchange an air through opening the window and door. At this time, never take such action asswitching off S/W of ventilator, which may lead to explosive accident dangerously.

* When finding out abnormal condition such as abnormal sound, smell, black smoke, etc. turnoperation S/W as OFF immediately and close main gas V/V. Without it dangerous fire or blastmay take place.

* For meeting such abnormalities properly, follow the instructions of Our Company's Repair &Control. Never use the machine in the state that the cause for abnormalities is not removed fully,which may become the cause for a fire and blast.

Inspection matters during operation

* Check if the water level of water level gauge is changedextremely or not.

* Check if there is any abmormal sond in a fan motor,water supply P/P, etc.

* Check if steam pressure gauge and gas one are rockingextremely or they indicate abnormal value.

* Check if a gas is leaked or not

Vibration

GasGas

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1. Turn the Operation Switch OFF. * The status display lamp will be switched on.

2. Pursuant to 「Using method of operation system/Operation of main steam V/V」in chapter 6, close mainsteam V/V.

3. Close V/V of water supply, main water supply and maingas.

Stop

Close

Water supply V/V

Warning

* In case of danger of freezing, take a freezing remedyaccording to 「Repair & inspection / Danger offreezing」in chapter 9.

* In case of stop for a long time, see 「Repair &inspection / Standstill for a long time」in chapter 9.

Main gas V/V

Main Steam V/V

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Instructions for More Convenience (Program Functions)

Program Settings ModePress and hold the Data Switch.

1. Press the Data Switch and select the ProgramSettings mode. Press and hold the Data Switch forlonger than 2 seconds to bring up the ProgramSettings mode.

2. Press the Data Switch and flip through the list.Select the Program Setting 1 (or Setting 2).

3. Use the Select Switch to select the start time.You can edit time by 10-minute basis.

4. Press the Data Switch and set the cursor on theend time.

5. Use the Select Switch to select the start time.If the start time and the end time fall on thesame time, it considers there is no time rangewhen combustion is prohibited. (This equals thecase when no program is set.)

6. Press the Data Switch to complete the settings. If you edit the program operation time whileoperating a program, the program will beoperated based on the newly-applied time setting.

This function sets a boiler on a combustion mode only when the steam is needed and on astandby mode if there is no need with the abnormality detection function on. The program settings offer the Program Setting 1 and the Program Setting 2. The standby modecan be set twice a day.

What is Program?

Program Time Settings

Time available for starting combustion: min

Program Settings 106 : 50 12 : 00

Time available for suspending combustion: min

Program Settings 106 : 50 12 : 00

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Program Function Stop

Program Function Start

Program Settings 1 P06 : 50 12 : 00

When opened

Main Steam Valve

WWaarrnniinngg

RPlease refer to the [Checkpoints duringOperations] while operating according to programfunctions and go through the checkpointsaccordingly. If you become negligent in proper inspections, itmay likely to lead to personnel accidents.


Operations by Program Functions

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1. Refer to the Section 7 [Inspection and PreparationBefore Starting] and follow the procedure.

2. Refer to the Section 6 [Instructions for OperationalDevices: Directions on Main Steam Edge] andopen the main steam valve accordingly.


4. Press the Data Switch and flip through the list.Select the Program Setting 1 (or Setting 2).

5. Turn the Select Switch to select the InitiateProgram Function. Press and hold the Data Switchfor longer than 2 seconds to release the ProgramSettings mode.

6. Press the Data Switch and bring up the ProgramSettings 1 (Start) of the following item.The letter P will flicker on the display screen.

7. Turn on the Operation Switch. The Status Display Lamp in green will be turnedon.

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Program FunctionStop

Program Settings 1 P06 : 50 12 : 00

WWaarrnniinngg

RAfter finishing the R project, always turn off theboiler and stop its operations when there is noboiler manager around. Unmanned operation withthe combustion standby mode by the programfunction may lead to personnel accidents.


Program FunctionStart


2. Press the Data Switch and flip through the list.Select an item in the Program Functions

3. Turn the Select Switch and select the ProgramFunction Stop. Press and hold the Data Switch forlonger than 2 seconds to release the Program Settingsmode.

4. Press the Data Switch to bring up the ProgramSettings 1 (Start) of the following item.The letter P will be switched off on the displayscreen.

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■Releasing the Program Function

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As for the specific time settings in the programfunction, the letter P won’t flicker even if theprogram is set to ‘start.’Combustion may start ifthe display screen shows standby mode. If the boileris already under combustion mode, combustion willcontinue.

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SQ SERIES

NNoottee

In the event you continue with the operation by the program function, please check the followingsbefore starting the boiler by the program function.

1. Check if there is water in the water tank.

2. Check if the indicator value in the gasmanometer is at normal state.

3. Refers to the Section 9 [Maintenance &Management] and check if the amount ofchemicals inside the chemical tank is asspecified.

4. Refer to the Section 9 [Maintenance &Management] and check if the water is softwater.

Checkpoints when Using Program Functions

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In case of Possible destruction by freezing

Warning

* Each part of boiler is made of hot temp. materials.Never touch other part than water tube blow, whichmay cause a scald.

* Do not open water tube blow abruptly, which may leadto a burn by means of abrupt eruption of hot water.

* Check if blow piping is fixed securely in order that itmay not be moved by any reaction of blow.

* Check if the end of blow piping is opened to safeplace such as a bit and etc.

1. Stop an operation according to 「Operation / Stop」inchapter 8.

2. Wait until the display of a steam pressure gaugereaches 0to 2kg/㎠

3. Open V/V of a water tube blow slowly and blow thewater tube.

4. When a steam pressure gauge exceeds 2kg/㎠, do notopen V/V of the water tube blow.

5. Wait for the indicator readings on the steam monometerto become 0kg/㎠.

6. Close V/V of the water tube blow.

7. Drain the water form water supply P/P according to「Using method of operation system / Drain of watersupply P/P」in chapter 6.

■A freezing remedy by drain of water tube and water supply P/P

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The following instructional freezing remedy is an example. According to the regional situationsboiler installation, take a comprehensive freezing remedy including circumferentialinstruments. For the freezing remedy, consult our A/S office freely any time.

Blow V/V

Open slowly

Close

9. Repair & inspection

Steam pressure gauge

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SQ SERIES

Warning

* For the boiler of hot water specification and drain recovery, since the water in water supply pipingis hot, do not work until the water supply piping cools down (longer than 2 hours from the stop ofboiler) fully in order to prevent any injury such as a scald and etc.

1. Close V/V of water supply and water supply source.2. Open V/V of water drain and air drain in the water

supply P/P.* The water within the water supply P/P is dischargedfrom water drain V/V.

3. Check if the water does not drain from water drainV/V.

* If not drained the drain work is completed.4. Close V/V of water drain and air drain in water supply

P/P.

■Water drain of water supply P/P

V/V of water drain and air drain in the water supply P/P is somewhat different from that inspecification in some cases. Consult our A/S staff for proper use before using.

In case of solving the freezing problem by waterdrain of water tube and water supply P/P, dodrain work of water supply P/P as follows. Drain work of water supply P/P shall be doneafter drain of water tube.

Never turn V/V of water drain and air drain morethan once. The water may eruput suddenly.

Closed

Opened

Water drain of water supply P/P

CloseOpen

Air drain V/V

This air-bleed valve isfound at the opposite side

Water Pump

Water outletWater inlet

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When a boiler is not used for a long period

In case of the standstill, consult our A/S office any time without fail.

In case a boiler is not used for a long time a proper preservation and control for the boiler isvery important.When the boiler comes to a standstill the concern about the maintenance & repair of theboiler tends to be negligent.Without good preservation condition of water tube during the standstill of the boiler somecorrosions may be deteriorated dangerously.The preservation method is classified into the full water one in application of the waterremoved from remained oxygen and the drying one by maintaining the inside of the boiler.

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Table of the place and time for inspection and cleaning

SQ SERIES

* In order to maintain high economical efficiency and safety of SQ type MIURA Boiler for a long timeand prevent any possible accident in advance, take the following inspection and cleaning on a regularbasis. (Check the details with our A/S staff.)

* Even with standard inspection periods described herein the times of inspection and cleaning increasenaturally according to using condition such as bad water quality and etc. The proper times aresubject to using situations so follow the instructions of our A/S staff without fail.

Items of inspection and cleaning

Inspection chemicals injection

Inspection on a water softener

Inspection on steam pressure

Inspection on gas pressure

Inspection on fire

Inspection on the low water level warning

Cleaning of the water supply tank inside

Cleaning of a water supply strainer

Request for water quality analysis

Inspection on operation of a gas leakage alarm

Inspection on safety V/V

Inspection on sightglass of a water level gauge

Every day 1 month 3 months Every year

Period of inspection and cleaning

Warning

* Do not other work than the designated one, which may lead to personal accident.

47

Inspection on chemicals injection system

1. Check remained chemicals through looking intomedicinal fluid tank.

2. In case remined amount is small, insert an indicated inputamount of cleaning chemicals into the medicinal fluidtank through weighing it together with our A/S staff.

■Inspection on remained medicine

Warning

* In case of inputting chemicals, be sure to wearprotective glasses and gloves. If they are in contactwith your eyes and hands you may incur a loss ofeyesight and an injury on the hands.

* If the chemicals touch your skin directly, wash itwith the flowing water immediately.

* If they enter into the eyes, wash them with theflowing water instantly and consult with a doctor aswell.

Chemicals injection system is essential to the water quality control of boiler. Use it correctlythrough reading the manual of chemicals injection system thoroughly before using it. And keepit at hand together with boiler manual in order that you may read them conveniently any time.

NoteNoteFollow the instructions of our A/S staff for an inputamount of chemicals.If you are negligent in supplimenting thechemicals, an air enters into chemicals injectionP/P to the extent that the chemicals can not besupplied to a boiler so you are required to inspectremained chemicals without fail.In case of slow consumption of chemicals in thechemicals injection tank the air may enter into thechemicals injection P/P so drain the air in the tank.

Chemicals injectionsystem

Chemicals

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48

SQ SERIES

1. Check remained chemicals in the chemicals injectiontank.

2. If remained chemicals are small, replenish them intothe tank.

3. According to the manual of chemicals injection system,attach one end of tube for air drain being an accessoryof chemicals injection system to air outlet and put otherend of tube into a weighing cup.

■Air drain of chemicals injection P/P

Warning

* When draining an air in the chemicals injection P/P,wear protective glasses and gloves without fail. Ifthe chemicals are in contact with the eyes and handsa loss of eyesight and an injury on the hands maytake place.

In case an air enters into the chemicals injectionP/P, drain an air in it in the following manner.

Tube for air drain

Chemicals

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4. Loosen air drain V/V of the chemicals injection P/P.

5. Open the pressure check cover in the circuit breakerand turn the forced chemical injection switch on.* The chemical injection pump starts to operate and thechemicals including air will come out by the air-bleed. Once the air is completely soaked out of the pump,only the chemicals will come out.

6. Once the air is completely soaked out of the pump, onlythe chemicals will come out.

7. Wipe out the air-bleed of the chemical injection pump.

8. Turn off the forced chemical injection switch and closethe pressure-check cover.

9. Place the tube for air drain to the original location.

10. Check if the chemicals are leaked out or not.In case of their leakage, wash them with soft clothcleanly and remove the cause for the leakage.

Warning

* Never turn air drain V/V of the chemicals injectionP/P more than twice. Through eruption of chemicalsyou are likely to incure a loss of eyesight and aninjury on the hands.

Warning

* Do not operate the forced chemical injection switchwith wet hands. It may likely to electric shockaccident. Do not touch other than the forced chemical injectionswitch. It may likely to electric shock accident.

Air drain

Open

Close

Air

Chemicals

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SQ SERIES

Inspection on soft water

Attention

Do not automatically mix the water in the poly beaker. It makes measuring the exact amount impossible.For specific measurement, drop 4 droplets of hardness indicator. Keep 20mL of water acquired fromsafety valve. The hardness indicator should be slowly dropped with the pipette vertically positioned. After shakingenough, get water until the amount reaches 50mL. Examine the color change immediately. After morethan 10 minutes, color change becomes dull with exact measurement failed.

1. Previously, discharge about 2L of water powerfullyfrom the safety valve (excreting congested water)

2. From safety valve, wash the accessory poly beakerwith water frequently.

3. Add 4 drips of indicator to the poly beaker(Samplingwater first may make it difficult to mix the hardnessindicator)

4. Get about 20mL of water from safety valve and pour itto the poly beaker. Shake it frequently.

5. After shaking it frequently, get the water from safetyvalve and pour it to the poly beaker until the amountreaches 50mL.

6. In case of red color, take the following inspection.Inspect the salt in a saline tank. In case the salt is not init, replenish the salt and in case a salty lump is formed,destroy it. Thereafter, regenerate it manually.

7. In case of red color despite of inspecting soft wateragain after above inspection, establish a proper remedyaccording to the manual of water softener.

■`Checking soft water

Water softener

Salt

Salt lump

Saline water

Hardness indicator

Inspectioncock

Cork fortesting water

51

Inspection on gas pressure

1. Open gas main V/V.

2. Check if an indicated value of gas pressure gauge isdisplayed as the designated one by gas pressure gaugeof a boiler.

3. In case the indicated value of gas pressure gauge is notdisplayed as the designated one, stop the boilerinstantly according to 「Operation / Stop」in chapter 8and contact our A/S office.

GAS

LNG

SQ-800ZSG, HSG

150~350mmAp

As for SQ800, more than 2 units should be set at 2000 to 4000㎜Aq

2000~4000mmAq

SQ-1500~2000ZSG, HSG

LPG

Boiler

Designated value of gas pressure

Gas main V/V

52

Inspection on steam pressure

1. Proceed to 「Operation/ Starting」in chapter 8.

2. Check if an indicator of a steam pressure gauge doesnot rock or display abnormal value.

Warning

* In case of abnormality in the steam pressure gauge,stop operation instantly and contact our A/S officeas well. If operating a boiler continuously even withabnormality in steam pressure gauge you may incuran accident by destruction of the boiler.

SQ SERIES

53

Blow method

Warning

R

1. Proceed to 「Operation / Starting」in chapter 8.

2. Check if a steam pressure gauge displays 1.5 to 2kg/㎠or not.

3. OPERATION S/W as OFF.* Status Indication lamp is lit off and then pre purge isproceeded. (At this time, close steam pressure V/V.)

4. Open the blow valve of the boiler main body slowly andperform blow of the boiler water.

■ Blow operation

After checking if a boiler stops or not, operate a blow. A scald and etc. may take place badly(Even if the [Blow] lamp is on when the boiler is under operation, there’s no need to performblow immediately.A blow shall be operated on the next day from the standstill of the boiler.)

For blow operation, make sure that the instructions of our A/S staff shall be observed fullywithout fail.

Warning

RWhen the display of a steam pressure gauge isabove 2kg/㎠, do not operate a blow.Abrupt eruption of steam and hot water may causean injury such as a burn and etc. (When steampressure is high, down the pressure throughopening steam V/V.)

Warning

R

R

Each unit of the boiler is of high temperature. Donot touch units other than the boiler body blow.Otherwise, it may likely to cause burn accidents. Do not open the boiler body blow valve abruptly.Boiling water may gush over to cause burnaccidents. Main body blow valve Open slowly.

Steam pressuregauge

Blow V/V

Open slowly

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5. Check if the B lamp of the display is turned off.

6. Close the blow valve of the boiler body

1. Turn the operation switch on.

2. If the status display lamp in red is turned on, it isnormal. If the lamp in green is turned on, the electrode is faulty.Refer to the Section 10 [Troubleshooting].

* If it reaches the specified water level, the status displaylamp changes from the red color to the green. In about awhile, combustion starts.

3. This soon begins the normal operation (status where the3rditemoftheSection8[Operations]begins).

Warning

* Check if the blow piping is firmly fixed so that itwon’t move by the reaction from blow.

* Check if the end-tip of the blow piping is opentowards a safe place such as a pit.

SQ SERIES

■ Low Water Temperature Interlock Test

NNoottee

For the low water temperature interlock test,perform blowing first and then the testimmediately.

Blow V/V

Operation stopSteam pressue 0. 01MPa

Closed

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55

Warning

RIf you clean an air filter, always receive directionsfrom our customer director before actualapplications.

Warning

R

R

R

Perform cleaning after the boiler is fully cooled off.(about 2 hours after it stopped)If you perform cleaning right after the boilerstopped, it is likely to cause burn accidents as eachunit is under of high temperature.

Be sure to turn the main power of the boiler OFF. Itmay start running the ventilator without notice,causing a finger amputation accident.

Do not operate the main power with wet hands. Itmay cause an electric shock accident.

1. Turn the main power of the boiler OFF.

Warning

R

R

Do not jump on or off from the ladder. Whileclimbing and getting down, grab and put your bothhands and either foot, or either hand and your bothfeet on a ladder and a footing. Otherwise, it maylead to a fall accident.

Do not climb on an area otherwise designated. It may lead to a fall accident or boiler failure.

2. Take the ladder to climb up on the boiler

3. Remove the ring that fixes the gas inlet cover, and openthe inlet cover.

Ventilator Filter Cleaning

RIf dusts or impurities are found in the air filter, the status display lamp in yellow will beswitched on to indicate the air filter requires cleaning through the display screen. If youcontinue to use the boiler as is, it may lead to imperfect combustion, therefore, always cleanthe air filter if there is filter blockage.

RFor clean and safe usage, it is recommended that you clean the filter on a regular basis. If the boiler room is full of suspended solids nearby or is in a cement plant, extra attentionis required and more cleaning is needed.

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4. Clean the filter taken out with a soft brush.

5. If the filter is severely damaged or tainted, it must bereplaced. Please contact our maintenance manager.

6. Put the filter to the original place. Close the gas inletcover and put a ring on.

1. Turn the main power of the boiler OFF.

Warning

* Do not operate a boiler without the air filter on.The burner may get blocked by the in-airimpurities and dusts or it may cause carbonmonoxide toxication or explosion due to imperfectcombustion.

Warning

* Do not operate a boiler without the air filter on.The burner may get blocked by the in-airimpurities and dusts or it may cause carbonmonoxide toxication or explosion due to imperfectcombustion.

Warning

* When you remove the R-Air Filter, always receiveproper directions from our maintenance managerbeforehand.

Warning

* Perform cleaning after the boiler is fully cooledoff. (about 2 hours after it stopped) If you perform cleaning right after the boilerstopped, it is likely to cause burn accidents aseach unit is under of high temperature.

* Be sure to turn the main power of the boiler OFF.It may start running the ventilator without notice,causing a finger amputation accident.

* Do not operate the main power with wet hands. Itmay cause an electric shock accident.

■ Cleaning Air Filter (SQ-2000ZS, 2500ZS)

2. Loosen the screws, press the filter to pull it forward andtake it out.

3. Clean it with a soft brush.4. If the filter is severely damaged or tainted, replace it

with a new one. 5. Turn the filter back to its original place. Lock it and fix it.

Brush

Filter

Press the filter

Brush

Ventilator

Filter

Filter Stopper

Screw

SQ SERIES

57

Claning of water supply strainer

Warning

R

1. Turn main power of the boiler as OFF.Check if a steam pressure gauge displays 0kg/㎠ or not.In case it does not display 0kg/㎠, wait until the value isdisplayed.

2. Check if the water valve and the main water valve areclosed.

3. Open the boiler body blow valve and perform blowingover the boiler water.

In case of operating a main power, don't operate itby hands, which may be the cause for electric shock.

Warning

RAlways perform blowing over the boiler water beforecleaning the water supply strainer. Otherwise, theboiler water may flow backward and cause burnaccidents.

Warning

RSince the water in water supply tank capable of recollecting condensed water is hot, do not thework until the water cools down fully (about 2 hours later from stop of a boiler) to protect thedanger of being burned.

Close

Boiler body blow valve

Close

Open

Water pump

Water valve

Water supply strainer

Air-bleed valve

Open

Cap

Wrench

NNoottee

If you open the water supply strainer cap, waterinside the pipes will come out. If the pipes arelonger, the amount should be large, therefore,collect water with a bucket.

4. Check the boiler water no longer comes out, and closethe boiler body blow valve.

5. Open the air-bleed valve of the water pump. RRemove pressure within the water pipe.

6. Open the cap of the water supply strainer.

58

SQ SERIES

Water pump

Brush

Cap

Cap

Seal tape

Filter

Close

Air-bleed valve

Air-bleed valve

7. Take the filter out and clean it with a brush. If the impurities in-between the filter can’t be removedor there is distortion in the filter, the filter should bereplaced. In this case, please contact our office.

8. Put the filter back to the original place of the watersupply strainer.

9. Close the air-bleed valve of the water pump.

10. When you start operating a boiler after cleaning thewater supply strainer, refer to the Section 10[Directions on Operational Units/ To Air-Bleed theWater Pump] to bleed the air out of the water pump.

67page☞

59

Cleaning of water supply tank inside

Warning

R

1. Turn main power of the boiler as OFF.Check if a steam pressure gauge displays 0kg/㎠ or not.In case it does not display 0kg/㎠, wait until the value isdisplayed.

2. Close replenishing V/V.

3. Open blow V/V of water supply tank.

4. When the water does not come out, close blow V/V ofwater supply tank.

5. Open replenishing water V/V.

In case of operating a main power, don't operate itby hands, which may be the cause for electric shock.

Warning

RSince the water in water supply tank capable of recollecting condensed water is hot, do not thework until the water cools down fully (about 2 hours later from stop of a boiler) to protect thedanger of being burned.

Close

Open

Close

Open

Water valve

Water tank

Blow valve of water tank

60

Water quality analysis

Analyze water quality once every three months. Quality of city water, underground one,industrial one, etc. changes according to season. Negligence about water quality analysisleads to the drop of boiler efficiency and the destruction of water tube as well. If you request water quality analysis we, KOREA MIURA shall carry it thanks tointroduction of modern analysis system out to the full satisfaction of our coustomers homeand abroad. For your water quality analysis, contact our A/S office freely without furtherhesitation.

SQ SERIES

Operation Test of Gas Leakage Alarm

To test the gas leakage alarm, please refer to thedirections on the gas leakage alarm.

Warning

RIf you neglect testing the operation of the gas leakage alarm (optional), it may cause explosionwhen the gas is leaked.

RPlease install the gas leakage alarm for the gas-fueled boiler other than the LPG onesjust in case.

NNoottee

NNoottee

Gas Leakage Alarm

61

Safety V/V

Adjust eruption pressure of safety V/V to one as displayed on it. An error may take place butnever adjust it carelessly.When you find out abnormality such as a leakage and etc, contact our A/S office.

For inspection on safety V/V, request our repair and control staff for it without fail.

Warning

RSafety V/V requires a regular inspection. Negligence about it may lead to such danger as a blastand etc. by trouble of safety V/V.

Sightglass of a water level gauge

Request our A/S staff for replacement of sightglass of a water level gauge.When you find out abnormality such as a leakage and etc, contact our A/S office immediately.

Warning

RSightglass of a water level gauge requires a regular replacement. Negligence about it may causesuch danger as an accident and etc. by destruction.

NNoottee

62

Warning is to stop a boiler through informing any possible danger by means of a buzzer or alamp by judging that continuous conbustion is dangerous.

RThe buzzer sets off and the status display lamp in red is switched on. The alarm is displayed on the screen.

1. Turn OFF the Data Switch.RThe buzzer stop.

2. Check the alarm indications, and turn OFF theOperation Switch.

RThe alarm will be rese

3. Pursuant to ̀ Remedy before request for repaira, removethe cause for warning occurrence.

4. Start a boiler in accerdance with ̀ Operation andStartingain chapter 8.In case same warning is generated repeatedly it may beother cause so contact our A/S office.

In case a buzzer rings and a warning lamp is flickering

10. Trouble and its remedy

NNoottee

NNoottee

If you press the operational directions according tothe alarm, it shows the list of things that ourcustomer service manager should handle. For moreinformation on correct handling of the alarm, referto the Section 10 [Troubleshooting beforeContacting Repairs].

NNoottee

The buzzer may not stop due to the operationspecified in no. 1 and no. 2. In this case, shut offthe circuit breaker of the boiler and contact ouroffice.

Warning

RFollow the order of removing the cause of alarmaccording to directions. Incorrect operation may leadto critical accidents.

64page☞

64page☞

36page☞

63

If the status display lamp in yellow (Notice) is switched on,

RIf you judge that it may lead to ‘Alarm’aftercontinuous operation, continue operation with thecombustion state as is or by changing it to the autocontrol.

RThe status display lamp in yellow will be switched on. RNo buzzer will set off for Notice stage. RThe specific message is displayed on the display screen.

The ‘Notice’status literally notifies you that it is in the stage right before Alarm if youcontinue to operate.

NNoottee

1. After the buzzer sets off and the alarm lamp is switchedon, follow the directions on no. 1 and no. 2.

2. Before requesting repairs, remove the cause of alarmaccording to the troubleshooting list.

NNoottee

When you press the operational directions accordingto the alarm, there are things that our maintenancemanager should handle. For more information oncorrect handling of the Notice stage, refer to theSection 10 [Troubleshooting

Press the Data Switch even when it’s underoperation to reset the Notice display.

64page☞

62page☞

64page☞

Warning

RPlease follow the directions for the correct order ofremoving the cause of alarm. Incorrect operationmay lead to critical accidents.

64

Remedy before request for repair

Warning

R

SYMPTOMS / DISPLAY INDICATION

Check power

Utility error 1

Utility error 3

Combustion error 4

Combustion error 9 (only oil)

Water supply error 2

Combustion error 3

Stoppage for security reasons 1


Stoppage for security reasons 3 (only gas)









Utility error 2

The display indication won’tbe switched on.

There is power outage.

There is power outage.

The emergency stop is under operation.

The overcurrents flow through the ventilator.

The overcurrents flow through the oil pump.

The overcurrents flow through the water pump.

Error is found in the inverter.

Error is foundin the combustion control function.

Error is foundin the fuel supply unit.

Error is foundin the ultraviolet phototube. Error is found in the exhaust gas temperature.

The safety device is under operation.

The overheating thermostat is disconnected.

Error is found in the gas pressure switch forvalve examination.

Error is found in the combustion device.

The receiver is under operation.

No power is supplied to the boiler. Check if there is power outage.

Turn the main power of the boiler circuitbreaker back on.

Reset the receiver.

Turn off the operation switch and do not put itagain. (The alarm display will be reset.)If the alarm continues again, refer to theSection 8 [Operations/Stoppage] and stop theboiler. Then, contact our customer service.

The main power of the boiler circuit breaker isturned off.

CAUSE MEASURES

In case of carrying out remedy of warning and alarm, be sure to turn boiler operation S/W asOFF and then do the work according to designated sequence accurately.In case abnormality is not removed even with carrying out as described in the remedy, stop aboiler according to ̀ Operation and Stopaand contact our A/S office without fail.Do not other work than designated one, which may lead to personal accident.

SQ SERIES

STOPPAGE FOR SECURITY

REASONS 10 (ONLY GAS)

65


Combustion error 5

Combustion error 6 (only gas)

Combustion error 7

Combustion error 8 (only gas)


Utility error 8 (only oil)









Control error 1

Control error 2

Control error 3

Control error 8

Soft water device check

Conservation check 1

Ambient management check

Combustion check 6

Combustion check 10 (only oil)

Sensor 8

Caution for freezing

Utility check 1

Combustion error 1

Combustion error 2

The water valve is closed and no water is

supplied.

The blow valve is open and the boiler water isdischarged.

The water pump is filled with air and it won’toperate normally.

The water strainer is blocked and no water issupplied.

There is some error in the upper stream in thewater supply.

The electrode poles are poorly connected.

There is an error in the control function.

Error is found in the water softening device.

Error is found in the wind amount for highenergy fuel.

Error is found in the steam pressure sensor.

There is a concern of freezing.

Check the connection of the wind pressurepipes.

Check the connection of the ventilation checkswitch pipes.

Check the connected poles of the electrode.

It seems the boiler has judged that thecontinuous operation should lead to the Alarmstage. You can continue with the operation; still,please contact our office.

Come up with the measure to preventfreezing.

Turn off the operation switch and do not put it again. (Thealarm display will be reset.)If the alarm continues again, refer to the Section 8[Operations/Stoppage] and stop the boiler immediately.Then, shut off the circuit breaker of the boiler and contactour office.

Open the fuel valve.

Open the water supply valve.

Close the blow valve.

Bleed air from the water pump.

Clean the water strainer.

Check the upper currents in the water supply.

There is an abnormal amount of air needed forcombustion.

Is the fuel valve closed?The ultraviolet phototube is faulty.

Is the fuel valve closed? There is an abnormal amount of air needed forcombustion.

Is the fuel valve closed?

CAUSE MEASURES

66

SQ SERIES


Utility check 3

Main body control 1

Main body control 2

Main body control 3 (only gas)

Main body control 4 (only oil)

Ambient management check 2

Ambient management check 3 (only oil)

Poor communication 1












Communication check 1

Communication check 1

Conservation check 6

Operate the ventilating device such as a ventilator.

Perform the blow.

Clean the air filter.

Perform the stop-blow.

Replenish the chemicals.

Replenish the fuel.

Contact our office immediately.

Ventilation is poorly done.

Blow is needed.

The air filter is blocked.

Stop-blow is needed.

Chemicals are not enough.

Fuel is not enough.

Error is found in the communicative functions.

CAUSE MEASURES

67

To Air-Bleed Water Pump

The air-bleed valve of the water pump may vary from specifications. Before use, have it examined by our maintenance manager. Do not operate the boiler before the air-bleed is finished. If the boiler is under operationwithout replenishing water properly, the boiler may become damaged.

1. [If the buzzer set off and the status display lamp in redis switched on (Alarm)], follow the operations specifiedin no. 1 through no. 3.

2. Open the water valve.

3. Open the air-bleed valve of the water pump.RWater mixed with air will come out of the air-bleedvalve.Once the air is bled, only water will come out.

4. Check if the air is blocked and only water comes out.

5. Close the air-bleed valve of the water pump.

Warning

RThe water in the water pipe is of high temperature when the boiler is for high temperature useor for drain collection. Therefore, avoid engaging in any works before the water pipe of theboiler fully cools down (about 2 hours after the boiler stopped). Otherwise, it may lead to burnaccidents.

NNoottee

62page☞

NNoottee

Do not turn the air-bleed valve more than once. Otherwise, water may burst.

Open

Water valve

Water pump

Open Close

Air-bleed valve

Air-bleed valve

68

Check on a connection terminal of electrode preservation device

Warning

RDo the work after a boiler cools down fully.(Longer than about 2 hours after stop)Each part of boiler is composed of hot temp.materials so pay careful attention to any possibleinjury such as a burn and etc. immedidtely afterstop of boiler.

2. Pick out an electrode rubber cap at top of electrodepreservation device and check a connection terminal.Thereafter, attach the electrode rubber cap to theoriginal location.

3. Start a boiler pursuant to the starting sequence.In case same warning is generated again, stop theboiler and contact our A/S office immediately.

1. Operate 1 to 5 in ̀ In case a buzzer rings and a warninglamp is lit upa

62page☞

Electroderubber cap

Electrodepreservationdevice

Connectionterminal

SQ SERIES

69

To Reset Receiver (Optional)

1. If the buzzer sets off and the alarm lamp flickers(Alarm), follow the procedure no. 1 and no. 2.

2. Reset the receiver according to the correct directions.

3. Start the boiler according to the correct directions. If the alarm sets off again, stop the boiler immediatelyand contact our office.

62page☞

To Reset Overcurrents in Ventilator


2. Start the boiler according to the correct directions. If the alarm sets off again, stop the boiler immediatelyand contact our office.

62page☞

Receiver

70

SQ SERIES

Check Connection of Wind Pressure Sensor Pipes


2. Turn off the circuit breaker of the boiler’s main power.

3. Open the lid of the control box.

4. Check the connections of the wind pressure pipes insidethe control box. If they have detached or loosened, fasten them tightly.

62page☞

Open

Open

Control Box

Main Power

Wind Pressure Sensor PipeWarning

R

R

Do not engage in any operations with wet hands. Itmay cause an electric shock accident. Do not touch areas otherwise designated. It maycause an electric shock accident.

71

5. Fix the lid of the control box as previously.

6. Operate the boiler according to the correct order ofstarting it. If the same error occurs again, stop the boilerimmediately and contact our office.

72

11. Specification

SQ-ZSG, HSG Series Basic SpecificationItem unit SQ-800HSG SQ-800ZSG SQ-1500HSG SQ-1500ZSG SQ-1700HSG SQ-1700ZSG SQ-2000HSG SQ-2000ZSG

Boiler

body

Burner

Connec

-tion

Size

Economizer

Design pressure

Fuelconsu-mption

Electricity

Weight

1{10}

0.49~0.88{5.0~9.0}

2.17{21.7}

Dimension

Forced pressure injection mix

Firing method by pilot flame, High Voltage Spark

Ultraviolet ray photoelectric tube

Air-fuel ratio control

BM 11

2,000~4,000

3-Phase AC 220, 380, 440 / 60

MPa{kg/cm2}

MPa{kg/cm2}

MPa{kg/cm2}

kg/h

kg/h

MW{Kcal/h}

m2

%

ℓ

Nm3/h

V/Hz

kW

kg

947

800

0.5990

(515,016}

5

1,175

1,500

1.1231

(965,655}

10

2,012

1,700

1.2728

(1,094,409}

10

1,175

1,500

1.1231

(965,655}

10

66

53.6

38.3

23.9

18.2

120

98.5

70.4

44.0

33.4

120

100.6

71.8

44.9

34.1

120

111.7

79.8

49.9

37.9

120

114.0

81.4

50.9

38.6

120

131.4

93.8

58.7

44.5

120

134.1

95.8

59.9

45.5

Once-through boiler

Note 8) Range of working pressure

Structure

Hydraulic test pressure

Actial eaporation

Rated output

Thermal treatment

Heating surface area

Boiler efficiency

Water reserve

-

L.N.G

L.P.G+AR

Propane

ButanePower supply

Total electric vol.

Width

Length

Height

mm

A

mmH20

Φmm

-

-

Type

Ignition system

Flame detector

Combustion control system

Controller

Supply gas pressure

Steam outlet

Feed Water inlet

Gas inlet

Bottom blowdown outlet

Safety valve outlet

Concentration blowdown

Chimney diameter

TypeMaterial

Note 1) The traditional system of units should be marked with the bracket{ }.Note 2) The rated evaporation should be calculated according to feed water temperature : 20°C. the steam pressure should bel calculated according to the design pressure.Note 3) In the event 2 or more units of SQ-800ZSG are installed for low-pressure specifications, always check the gas supply pressure and go through necessary technical examinations beforehand.

Gas supply pressure for burners by model: KMNB-8L (low pressure) at 150 to 350 / KMNB-8 (semi-low pressure) at 350 to 4,000Note 4) The fuel consumption is calculated at lower calorific value

Low calorific value is as follows - ①LNG : 41.9MJ/N㎥{10,000kcal/N㎥} ② LPG+AIR : 58.6MJ/N㎥{14,000kcal/N㎥} ③Propane : 93.8MJ/N㎥{22,400kcal/N㎥}, 46.4MJ/kg{11,089kcal/kg}, ④Butane : 123.5MJ/N㎥{29,500kcal/N㎥}, 47.5MJ/kg{11,353kcal/kg}

Note 5) The allowable errors are as follows. The boiler efficiency is in error by ±1%, the amount of combustion in error by ±3.5%.Note 6) The standards and specifications are allowed to be modified to improve. the quality of the product without notice. Note 7)Option - Multiple Installation(MI), High concentrated blow, Pressurized water pump, Earthguake shock sensor, MI chemical Feed pump, MI Damper, ER, M-net Ⅲ, Moedm, Water meterNote 8) In case of using steam lower than working pressure, installation of regulator, etc is needed.

4.1

1,340

650

3,048

2,452

50

32

50

4.1

1,300

650

2,438

2,452

50

32

50

11.7

2,184

930

2,902

2,380

65

40

40

11.7

2,134

930

2,608

2,380

65

40

40

11.7

2,184

930

2,902

2,380

65

40

40

11.7

2,134

930

2,608

2,380

65

40

40

13.2

2,184

930

2,902

2,450

80

40

40

13.2

2,134

930

2,608

2,450

80

40

40

25

50

15

250

150~4,000

High frequency Aero Fin type Aero Fin type

STS 316, 304

High frequency Aero Fin type

STS 316, 304


STS 316, 304


STS 316, 304SPPS Hot Dip Aluminum Coating

Aero Fin type

SPPS Hot Dip Aluminum Coating

Aero Fin type


Aero Fin type


300 360

97.1(Low), 89.2(High) 96(Low) 96(Low)98(Low), 90.2(High) 96(Low)98(Low), 90.2(High) 96(Low)90.9(High)

73

Repair and service

A letter of guarantee in this prodnct is not available. It will be handed over to you by our A/Sstaft after filling in the specified matters when starting a boiler so that you are kindlyrequested to keep it through checking them thoroughly.Guarantee period is one year from purchase day. Since some repairs shall be covered on chargebasis even within guarantee period, you shall consult our A/S staft for the repair and servicewithout fail.For the repair after guarantee period, consult the corresponding A/S office. If the functionworks normally through repair the repair will be treated on user’s charge basis.Contact our A/S office for the detailed matters and other problems on A/S.

『Guide to M.M.P Inspection Contract 』

MIURA BOILER MAINTENANCE PROGRAMMMP Inspeition is taken by a proficient engineer according to Inspection Result Report and theinspection items cover all of parts of boiler such as a burner, water supply system, tublar insidepart, etc.

Safety inspectionA large scale accident such as malfunction and etc. is likety to start from safety V/V so a regularinspection on each function shall be taken strictly.

Do you know a frequent inspection?For the boiler to be inspected legally pursuant to Energy Application Rationalization Act afrequent inspection to be made once a year by an inspection agency has been carried out to thefull responsiblilities.

Maximum prevention against stop of boilerThrough accurate inspection by modern measuring instruments the trouble is prevented inadvance to the maximum, thereby concentrating our efforts on the job successfully.

Maintaining boiler efficienyThe smoke, scale attachment, etc. cause a drop of boiler efficiency. Accurate inspection and timelyremedy enable to maintain high efficiency of boiler.

Use convenient maintenance repair contract service.

12. Appendix

74

Boiler body : Safety V/V inspection, tublar inside inspection, furnace pressuremeasurement, smoke and scale attachement condition and others.

Burner :Exhaust gas annalysis(O₂, CO₂, CO, temp.), burner inspection, oil P/P, electronicV/V, etc.

Water supply :Water softener, chemicals injection system, water supply P/P, low waterlevel isolation test, etc.

Consult our A/S office for further details.

Use rated product of leading maker for boiler chemicals.

SQ SERIES

●New TYPE combined cleaning material for a water tube boilerKIM-800/KIS-700Boiler mate KIM/KIS mostly suitable for mproving the water supply quality of boiler is new typecombined cleaning material.(Tube cleaning material, oxygen removing material, natural filmcreation mix.)

Name of medicine

For industry

KIM-800

For food

KIS-700

0~30

30~60

60 above

0~30

30~60

60 above

1.24

1.19

190

170

130

260

240

180

30

30

50

1.15

1.13

1.05

When removed 200ppm

When removed 200ppm

Double water tube treating material

Standstill tube treating material

S/D(For industustry)

F2(For food)

New Tra-M

M1

Water supplytemp.(。C)

Input concentration(PPM)

Gravi ty(kg/ℓ) Remark

KOREA MIURA CO., LTD

System control over our mationwide offices bycomputerized

Repair & control office of MIURA BOILER

Main office: 701-1, Ace High-tech City 3, 55-20, Mulllae-dong 3(sam)-ga, Yeongdeungpo-gu, Seoul TEL. 02)2671-2410 FAX. 02)2671-0019

Call the key number with no area code andrequest after-sales service. Your nearestservice center will provide quick and thoroughservice.

This manual is published on recycled paper.

Miura boiler, reliable anytime and anywhere

Miura Korea

Documents

MANUAL - maytau.ut.edu.vnmaytau.ut.edu.vn/userfiles/files/manual_SQ-Z_eng.pdfMANUAL Once-Through Boiler (gas fired) Please use Miura Boiler after reading this Manual accurately and