WATER SOUCE SYSTEM

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Horizontal Water Source Heat PumpHorizontal Water Source Heat Pump

WATER SOUCE SYSTEMWATER SOUCE SYSTEMWATER SOUCE SYSTEMWATER SOUCE SYSTEM

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Introduction to Water Source SystemIntroduction to Water Source System

General Benefit of Water Source SystemGeneral Benefit of Water Source System

Product LineupProduct Lineup

Product (WH, 5WSS, WSS)Product (WH, 5WSS, WSS)

- FeaturesFeatures

- HandsetHandset

- PCBPCB

- Control AlgorithmControl Algorithm

- Selft Diagnosis & TroubleshootingSelft Diagnosis & Troubleshooting

InstallationInstallation

Content

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INTRODUCTION

to

Water Source System

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Introduction:What is Water Source Heat Pump?

Finned-tube heat exchanger

Water inlet

Water outlet

4 Way Valve

Compressor

Expansion device

Water-to-refrigerant heat exchanger

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1. Water Loop Heat Pump System

2. Ground Water Heat Pump System

3. Surface Water Heat Pump System

4. Ground Coupled Heat Pump System

Water Source System Categories

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Water Loop Heat Pump Water Loop Heat Pump

• Most common configurationMost common configuration

• Re-circulating water loopRe-circulating water loop

• Cooling tower & boilerCooling tower & boiler


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Ground Water Heat Pump Ground Water Heat Pump

• Ground water from wellGround water from well

• Drained back to well, Drained back to well, drain, stream or lakedrain, stream or lake

• Stable throughout the yearStable throughout the year

• Limited by availability of Limited by availability of water table and aquifers in water table and aquifers in the groundthe ground


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Surface Water Heat Pump Surface Water Heat Pump

• Open or close loopOpen or close loop

• Open – water being Open – water being returned back to source or returned back to source or draindrain

• Closed – water being re-Closed – water being re-circulated in the closed circulated in the closed looploop

• Stable throughout the yearStable throughout the year


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Ground Coupled Water Heat Ground Coupled Water Heat Pump Pump

• HE is buried into the earthHE is buried into the earth

• Installation cost is highInstallation cost is high

• Massive & stable thermal capacityMassive & stable thermal capacity


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Water Loop Heat Pump System

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cooling towercooling tower

pumpspumps

plate-and-frameplate-and-frameheat exchangerheat exchanger

heat pumpsheat pumps

waterwaterdistributiondistributionlooploopboilerboiler

expansionexpansiontanktank

airairseparatorseparator


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32ºC32ºC[90[90ºF]ºF]

heat pumps inheat pumps incooling modecooling mode

cooling cooling tower ONtower ON

boiler offboiler off

Summer Operation Summer Operation


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Winter Operation Winter Operation

heat pumps inheat pumps inheating modeheating mode

16ºC16ºC[60[60ºF]ºF]boiler onboiler on

cooling cooling tower OFFtower OFF


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Spring and Fall Operation Spring and Fall Operation

boiler offboiler off

heat pumps inheat pumps inheating modeheating mode

heat pumps inheat pumps incooling modecooling mode

cooling tower cooling tower OFFOFF

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General Benefits of a Water Source SystemGeneral Benefits of a Water Source System

• Heat recovery offers energy savingsHeat recovery offers energy savings

• Individual space controlIndividual space control

• Performs both cooling and heatingPerforms both cooling and heating

• Flexibility – additional of heat pumpFlexibility – additional of heat pump

- Individual tenant metering

• Small amount of floor space requiredSmall amount of floor space required

• Unit failure does not affect the rest of the systemUnit failure does not affect the rest of the system

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Product Lineup & Features

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Package Type

- Horizontal WSHP, WH-B/BR series

- Vertical WSHP, WV-A/AR series

Split Type

- WSS & 5WSS series + Various Indoor

Product Lineup

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R410A Water

Source Split, 5WSS-AR

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5CCWS 10/15/20/25/30/40/50/60 CR5CCWS 10/15/20/25/30/40/50/60 CR5CCWS 10/15/20/25/30/40/50/60 CR5CCWS 10/15/20/25/30/40/50/60 CR

5WMWS 10/15/20/25 GR5WMWS 10/15/20/25 GR5WMWS 10/15/20/25 GR5WMWS 10/15/20/25 GR

5CKWS 20/25/30/40/50 5CKWS 20/25/30/40/50 ARAR5CKWS 20/25/30/40/50 5CKWS 20/25/30/40/50 ARAR5CKWS 10/15/20 CR5CKWS 10/15/20 CR5CKWS 10/15/20 CR5CKWS 10/15/20 CR

R410A Water Source Split

5WSS – AR Series5WSS – AR Series5WSS – AR Series5WSS – AR Series

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1. Features 1. Features 1.1 Product Information1.1 Product Information

1.2 Wide Range of Indoor 1.2 Wide Range of Indoor 1.3 Compact & Low Height Profile1.3 Compact & Low Height Profile1.4 Less Vibration Design1.4 Less Vibration Design1.5 Zero ODP Refrigerant1.5 Zero ODP Refrigerant1.6 Part Loading Capability – Tandem Type1.6 Part Loading Capability – Tandem Type1.7 Centralize Control & Networking1.7 Centralize Control & Networking

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1.1 Product Introduction1.1 Product Introduction

- Heat pump Only- Heat pump Only- Split Type- Split Type- Capacity: 2.37kW – 15.77kW- Capacity: 2.37kW – 15.77kW- 8,100 Btu/hr to 53,800 Btu/hr- 8,100 Btu/hr to 53,800 Btu/hr

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5WSS 07/10/15/16/20/25/30/40/50/60 AR5WSS 07/10/15/16/20/25/30/40/50/60 AR5WSS 07/10/15/16/20/25/30/40/50/60 AR5WSS 07/10/15/16/20/25/30/40/50/60 AR

00 1010 2020 3030 4040 5050 6060

Btu/hr x 103Btu/hr x 103

00 2.932.93 5.865.86 8.798.79 14.6514.65 17.5917.5911.7211.72kWkW

Product NameProduct Name


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1.2 Wide Range of Indoor Option1.2 Wide Range of Indoor Option

1. Features1. Features

• Wall MountedWall Mounted : 1 hp to 2.5 hp: 1 hp to 2.5 hp

• Ceiling Cassette - ACeiling Cassette - A : 2 hp to 5 hp: 2 hp to 5 hp

• Ceiling Cassette - CCeiling Cassette - C : 1 hp to 2 hp: 1 hp to 2 hp

• Ceiling ConcealedCeiling Concealed : 1 hp to 6 hp: 1 hp to 6 hp

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1.3 Compact & Low Height Profile1.3 Compact & Low Height Profile


~ 30% volume metric reduction

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1.4 Less Vibration Design1.4 Less Vibration Design


• Double isolation PanelDouble isolation Panel

• Reduce noise and vibration transmissionReduce noise and vibration transmission

Upper Panel

Lower Panel

Compressor

Grommet

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1.5 Zero ODP Refrigerant1.5 Zero ODP Refrigerant


- In line with Montreal Protocol.- In line with Montreal Protocol.

1.6 Part Loading Capability1.6 Part Loading Capability

- Compared to 5WSS series, 5WST series is having the part - Compared to 5WSS series, 5WST series is having the part loading capability during the low load condition, which loading capability during the low load condition, which resulting in good SEER, Seasonal EER.resulting in good SEER, Seasonal EER.

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1.7 Centralize Control by Using NIMPC or1.7 Centralize Control by Using NIMPC or Smart Manager/ HydroIntelSmart Manager/ HydroIntel


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2.1 Handset 2.1 Handset

2. Handset & PCB2. Handset & PCB

WM WM : G11/G12: G11/G12

CK CK : G7/G8: G7/G8

CCCC : SLM3: SLM3

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3. Control Algorithm 3. Control Algorithm 3.1 System & Mode Selection3.1 System & Mode Selection

3.2 Features3.2 Features3.3 Operating Mode3.3 Operating Mode3.4 Protection3.4 Protection

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Modes can be selected via the value of resistor RFAN through slide Modes can be selected via the value of resistor RFAN through slide

switch.switch.

3. Control Algorithm3. Control Algorithm

3.1 System Selection – 5WMWS3.1 System Selection – 5WMWS

System ROPT2

Multi split 110K

Single 22K

DX 7K5

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Modes can be selected via the Modes can be selected via the value of resistor RMODEvalue of resistor RMODE

3.1 MODE Selection – 5WMWS3.1 MODE Selection – 5WMWS

Models Modes Defrost RMODE

AP Auto > Cool > Dry > Fan > Heat > C2.4 version 3K

AP Auto > Cool > Dry > Fan > Heat > C2.3 version 7K5

AT Auto > Cool > Dry > Fan > Heat > - 22K

EC Cool > Dry > Fan > - 110K


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Modes can be selected via the Modes can be selected via the value of resistor ROPT2value of resistor ROPT2

3.1 System Selection – 5CCWS & 5CKWS3.1 System Selection – 5CCWS & 5CKWS

System ROPT2

Tandem Shorted

Single 7K5

DX Open

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Modes can be selected via the Modes can be selected via the value of resistor RMODEvalue of resistor RMODE

3.1 MODE Selection – 5CCWS, 5CKWS3.1 MODE Selection – 5CCWS, 5CKWS

Models Modes Defrost RMODE

AP Auto > Cool > Dry > Fan > Heat > C2.4 version 3K

AP Auto > Cool > Dry > Fan > Heat > C2.3 version 7K5

AT Auto > Cool > Dry > Fan > Heat > - 22K

EC Cool > Dry > Fan > - 110K

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3.2.1 Auto Random Restart3.2.1 Auto Random Restart

• Auto random restart at the last state memory settingAuto random restart at the last state memory setting

• Shorted at Shorted at J_LSTJ_LST jumper at main board jumper at main board

• Remove the jumper to have non-auto restartRemove the jumper to have non-auto restart

3.2 Features3.2 Features

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J_LSTJ_LST

Auto Random RestartAuto Random Restart


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Power Up SettingsPower Up Settings

Power UpPower Up

J_LST ShortedJ_LST Shorted J_LST OpenedJ_LST Opened

User Set ModeUser Set Mode

User Set TemperatureUser Set Temperature

User Set Fan SpeedUser Set Fan Speed

Mode = COOLMode = COOL

Set Temperature = 24˚CSet Temperature = 24˚C

Fan Speed = HIGHFan Speed = HIGH


SWING OFFSWING OFF

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3.2.2 Unit ON / OFF3.2.2 Unit ON / OFF3 ways to turn on / off the system:3 ways to turn on / off the system:

(a) On/Off Triggering(a) On/Off Triggering

• Emergency On/Off ButtonEmergency On/Off Button

- System mode setting will rotate in the following - System mode setting will rotate in the following

sequencesequence

Heat pumpHeat pump …….>COOL>HEAT>OFF>…..…….>COOL>HEAT>OFF>…..

CoolingCooling …….>COOL>OFF>…….…….>COOL>OFF>…….

• On/Off button on handsetsOn/Off button on handsets


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3.2 Features

3.2.2 Unit ON / OFF3.2.2 Unit ON / OFF

(b) Delay timer(b) Delay timer

• Pressing the On/Off will reset the timer to 0 hour Pressing the On/Off will reset the timer to 0 hour

(c) Real time On/Off Timer(c) Real time On/Off Timer

• Based on internal real time clockBased on internal real time clock

• The timer settings are kept so that similar switches can The timer settings are kept so that similar switches can occur 24 hours later. occur 24 hours later.

• If emergency ON/OFF switch being press, then the timer If emergency ON/OFF switch being press, then the timer will be reset. will be reset.

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3.2 Features

3.2.3 Sleep Function3.2.3 Sleep Function

• Only available for COOL, HEAT & AUTO mode Only available for COOL, HEAT & AUTO mode

• This function will increase (cooling mode) or decrease This function will increase (cooling mode) or decrease (Heating mode) the set temperature with time(Heating mode) the set temperature with time

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3.2.3 Sleep Function (Cool Mode) 3.2.3 Sleep Function (Cool Mode)

SLEEP set onSLEEP set on SLEEP set offSLEEP set off

TsTs

Ts + 1/2Ts + 1/2

Ts + 1Ts + 1

Ts + 2Ts + 2

00 1/21/2 11 22

HoursHours

3.2 Features

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3.2 Features

SLEEP set onSLEEP set on SLEEP set offSLEEP set off

TsTs

Ts - 3Ts - 3

Ts - 2Ts - 2

Ts - 1Ts - 1

00 1/21/2 11 22 HoursHours

3.2.3 Sleep Function (Heat Mode) 3.2.3 Sleep Function (Heat Mode)

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• Indoor fan speeds are Indoor fan speeds are LOW, MEDIUM, HIGHLOW, MEDIUM, HIGH or or AUTO FANAUTO FAN in in

COOL, HEATCOOL, HEAT and and AUTOAUTO modes. modes.

• In In FAN modeFAN mode, only , only HIGH, MEDIUMHIGH, MEDIUM and and LOW LOW speeds are speeds are allowed.allowed.

3.2 Features

3.2.4 Indoor Fan Control3.2.4 Indoor Fan Control

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• The IONIZER can be turned ON when indoor fan is ON.

• The IONIZER will OFF when indoor fan is OFF.

3.2 Features

3.2.5 IONIZER Control3.2.5 IONIZER Control

IonizerIonizer

CapacitorCapacitor

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• Available in COOL, HEAT and DRY modes only.

• When TURBO function is set, indoor fan will force to HIGH for

20 minutes and working temperature for

- Cooling Cycle is Ts – 2˚C

- Heating Cycle is Ts + 2˚C

3.2 Features

3.2.6 TURBO Function3.2.6 TURBO Function

• If TURBO & Sleep function activated, Sleep function timer will

reset until TURBO function is clear.

Set Temperature

20min 30min

TURBO Function

Conventional

Time

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3.3. Operating Mode 3.3. Operating Mode

3.3.1 Cool Mode 3.3.1 Cool Mode

3.3.2 Heat Mode3.3.2 Heat Mode

3.3.3 Auto Fan3.3.3 Auto Fan

3.3.4 AUTO Mode3.3.4 AUTO Mode

3.3.5 Defrost Function3.3.5 Defrost Function

3.3.6 Dry Mode3.3.6 Dry Mode

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• Compressor will cut in if Tr – Ts > 0.5˚C

• Compressor will cut out if Tr < Ts – 1.0˚C

Note: Tr = Room Temperature

Ts = Set Temperature

3.3 Operating Modes

3.3.1 Cool Mode 3.3.1 Cool Mode

24C 25C 26C22C 23C

24.5C23C

ONOFF

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3.3.2 Heat Mode 3.3.2 Heat Mode

3.3 Operating Modes

• Compressor will cut in if Tr – Ts < 1.0˚C

• Compressor will cut out if Tr –Ts > 3.5˚C

Note: Tr = Room Temperature

Ts = Set Temperature

3.3.2.1 Heat Pump Model3.3.2.1 Heat Pump Model

24C 25C 26C22C 23C

27.5C23C

OFFON

27C

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• The indoor fan speed modulate according to the Tin coil:

- If Tin coil > 40˚C, indoor fan run at user set speed

- If Tin coil < 18˚C, indoor fan stop

- If Tin coil crosses 30˚C, indoor fan change to low speed

Note : TNote : Tin coilin coil = Indoor Coil Temperature = Indoor Coil Temperature

3.3 Operating Modes


3.3.2.2 Hot Start3.3.2.2 Hot Start

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• 2 selection available at the slide switch – ON/OFF 2 selection available at the slide switch – ON/OFF

• Factory Preset at Factory Preset at OFFOFF option option

3.3 Operating Modes3.3 Operating Modes


3.3.2.3 Hot Keep3.3.2.3 Hot Keep

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When compressor cuts out, the indoor fan will runs When compressor cuts out, the indoor fan will runs according according

to hot keep options.to hot keep options.

There are 2 options of Hot Keep:There are 2 options of Hot Keep:

(a) Fan On Option(a) Fan On Option

(b) Fan Off Option (b) Fan Off Option

3.3 Operating Modes



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(a) Fan On Option (a) Fan On Option

• Thermostat Cycle Cut OFFThermostat Cycle Cut OFF

- If T- If Tin coilin coil > 40 > 40˚C, indoor fan run at set speed˚C, indoor fan run at set speed

- If T- If Tin coilin coil crosses 37˚C, indoor fan run at low speed crosses 37˚C, indoor fan run at low speed

- If T- If Tin coilin coil < 18˚C, indoor fan stop < 18˚C, indoor fan stop

3.3 Operating Modes



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(b) Fan Off Option(b) Fan Off Option

• If TIf Tin coilin coil > 40 > 40˚C, indoor fan run at set speed˚C, indoor fan run at set speed

• If TIf Tin coilin coil crosses 37˚C, indoor fan run at low speed crosses 37˚C, indoor fan run at low speed

• If TIf Tin coilin coil < 30˚C, indoor fan stop < 30˚C, indoor fan stop




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• To run heat mode, 4-way valve MUST turn ON.To run heat mode, 4-way valve MUST turn ON.

• 4-way valve can only be changed from ON to OFF or vice-4-way valve can only be changed from ON to OFF or vice-versaversa

55 +/- 5 seconds after the compressor has cut out.55 +/- 5 seconds after the compressor has cut out.

• Compressor cut in after 4s.Compressor cut in after 4s.



3.3.2.4 4-Way valve Changing3.3.2.4 4-Way valve Changing

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• Cool ModeCool Mode


3.3.3 Auto Fan 3.3.3 Auto Fan

AUTO Fan Speed during COOL modeAUTO Fan Speed during COOL mode

H M L M H M L L M HH M L M H M L L M H

COMP ON COMP OFF COMP ONCOMP ON COMP OFF COMP ON

+1.5+1.5+1.0+1.0+0.5+0.5TTss

-0.5-0.5-1.0-1.0

ooCCTTrr

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• Heat ModeHeat Mode


3.3.3 Auto Fan 3.3.3 Auto Fan

TTrr AUTO Fan Speed during HEAT modeAUTO Fan Speed during HEAT mode

M H M L M H M LM H M L M H M L

+3.5+3.5+3.0+3.0

+2.0+2.0

+1.0+1.0

TTss

ooCC

COMPCOMPOFFOFF

COMP ONCOMP ONCOMP COMP OFFOFF

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Under Auto mode, COOL & HEAT mode can be changed Under Auto mode, COOL & HEAT mode can be changed

automatically depending on room & set temperature.automatically depending on room & set temperature.


3.3.4 AUTO Mode 3.3.4 AUTO Mode

COOLCOOL HEATHEAT

I)I) TTrr <= T <= Tss - 3.5°C AND - 3.5°C AND

II)II) The compressor has cut out for at least 10 minThe compressor has cut out for at least 10 min..

IFIF

(a) If the present Auto mode is COOL,(a) If the present Auto mode is COOL, ( Mode Set Temperature = User Set Temperature)( Mode Set Temperature = User Set Temperature)

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3.3.4 AUTO Mode 3.3.4 AUTO Mode

(b) If the present Auto mode is HEAT,(b) If the present Auto mode is HEAT, ( Mode Set Temperature = User Set Temperature)( Mode Set Temperature = User Set Temperature)

HEATHEAT COOLCOOL

IFIF

I)I) TTrr > T > Tss + 3°C AND + 3°C AND

II)II) The compressor has cut out for at least 10 minThe compressor has cut out for at least 10 min..


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3.3.5 Defrost Mode 3.3.5 Defrost Mode

• Can only be operate through HEAT modeCan only be operate through HEAT mode

• ‘ ‘Defrost Timer’ start counting when the OD coil sensor measuredDefrost Timer’ start counting when the OD coil sensor measured below +3 below +3 ooC C

• Upon crossing + 5 Upon crossing + 5 ooC to a higher temperature for 150 seconds,C to a higher temperature for 150 seconds, the timer will be reset (this timer is also reset after defrost mode)the timer will be reset (this timer is also reset after defrost mode)

• The temperature sensing can only be done when the compressor The temperature sensing can only be done when the compressor run time > 2 minutes run time > 2 minutes


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3.3.5 Defrost Mode 3.3.5 Defrost Mode The likelihood of ice The likelihood of ice frosting:frosting:

0 1/2 1 2Hours

ooCC+3+2

0

-2

-4

-6

-8 Defrost Mode trigger if >3 Defrost Mode trigger if >3 minmin

ToTo


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• During Defrost Cycle, HEAT LED will blinkDuring Defrost Cycle, HEAT LED will blink

• The defrost cycle will terminate if:The defrost cycle will terminate if:

a. temperature of outdoor coil sensor exceeds a. temperature of outdoor coil sensor exceeds +10 +10 oo C C

OROR

b. a minimum of b. a minimum of 10 min10 min compressor run time is achieved compressor run time is achieved


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OD fanOD fan& 4WV& 4WV

ONON

OFFOFF

ONON

OFFOFF

COMPCOMP

Defrost CycleDefrost Cycle 15 +/- 5 sec 15 +/- 5 sec

Defrost CycleDefrost Cycle


20 sec 20 sec

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3.3.6 Dry Mode 3.3.6 Dry Mode

During the 1During the 1stst 12 minutes 12 minutes

• Run under COOL mode with Auto Fan Speed for 12 minutesRun under COOL mode with Auto Fan Speed for 12 minutes

OROR

• Run Until TRun Until Trr < T < Tss – 1°C – 1°C

After the 1After the 1stst 12 minutes 12 minutes

• Run either Zone A, B, C or D (depend on temp. condition)Run either Zone A, B, C or D (depend on temp. condition)


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ZONE AZONE A : if T: if Trr - T - Tss > 2 > 2 o o CC

12 Minutes12 Minutes


CompressorCompressor

Low FanLow Fan

ONON

OFFOFF

ONON

OFFOFF

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ZONE BZONE B : : if 0°C < Tif 0°C < Trr - T - Tss < 1°C < 1°C

8 min8 min 4 min4 min

30 sec30 sec 30 sec30 sec

ONON

OFFOFF

ONON

OFFOFF




Low FanLow Fan

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ZONE CZONE C : : if 1°C < Tif 1°C < Tss - T - Trr < 2°C < 2°C

30 sec30 sec 30 sec30 sec12 Minutes12 Minutes

6 min6 min 6 min6 min


ONON

OFFOFF

ONON

OFFOFF


Low FanLow Fan

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ZONE DZONE D : : if if TTss - T - Trr > 3°C > 3°C

Low FanLow Fan


30 sec30 sec


ONON

OFFOFF

ONON

OFFOFF


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3.4 Protections 3.4 Protections

3.4.1 Compressor 3.4.1 Compressor

3.4.2 Indoor Coil Anti Freeze3.4.2 Indoor Coil Anti Freeze

3.4.3 EWT Control3.4.3 EWT Control

3.4.4 Self Diagnostics3.4.4 Self Diagnostics

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3.4 Protections


(a) 3 minutes Minimum OFF time(a) 3 minutes Minimum OFF time

Memory backup option not selected Memory backup option not selected (J_LST Opened)(J_LST Opened)

• Compressor can immediately cut in after the power supply is Compressor can immediately cut in after the power supply is restore; subject to thermostat cut in mode.restore; subject to thermostat cut in mode.

Memory backup option selected Memory backup option selected (J_LST Shorted)(J_LST Shorted)

• Compressor can cut in 0 to 64 seconds after the power supply Compressor can cut in 0 to 64 seconds after the power supply is restore; subject to thermostat cut in mode.is restore; subject to thermostat cut in mode.

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3.4 Protections


(b) 150 seconds Minimum Run Time(b) 150 seconds Minimum Run Time

(c) Overload Protection(c) Overload Protection

COOL, AUTO COOL and DRYCOOL, AUTO COOL and DRY

OD coil tempOD coil temp

Comp & OD FanComp & OD Fan

68 68 o o CC

ONON

OFFOFF

HEAT, AUTO HEATHEAT, AUTO HEAT

ID coil tempID coil temp

Comp, OD FanComp, OD Fan& 4WV& 4WV

68 68 o o CC

ONON

OFFOFF

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(d) Hardware Switch Detection(d) Hardware Switch Detection

• Normally closed switchNormally closed switch

• A counter is increased by one during the first thermostat A counter is increased by one during the first thermostat

cyclecycle

• Counter will reset after 3 minutes or unit turned offCounter will reset after 3 minutes or unit turned off

• If counter > 5, the unit will declare compressor overloadIf counter > 5, the unit will declare compressor overload

protectionprotection

3.4 Protections3.4 Protections


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3.4 Protections

3.4.2 Indoor Coil Anti Freeze 3.4.2 Indoor Coil Anti Freeze Available in COOL and DRY mode Available in COOL and DRY mode

• IFIF ID Coil Temp reaches 1°C and below for at least 1 min ID Coil Temp reaches 1°C and below for at least 1 min

ANDAND compressor has run for at least 10 minutes compressor has run for at least 10 minutes

11ooCCComp & OD FanComp & OD Fan OFFOFF

ONON

1010ooCC

Comp & OD FanComp & OD Fan

OFFOFF

ONON

• IFIF ID Coil Temp reached 10 ID Coil Temp reached 10˚C and above for at least 1 min˚C and above for at least 1 min

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3.4 Protections

Under COOL, DRY or Auto COOL Modes,Under COOL, DRY or Auto COOL Modes,

• Compressor will NOT run and alarm will be activatedCompressor will NOT run and alarm will be activated

- IF T- IF Tww 13°C or T 13°C or Tww 40°C for at least 20 seconds 40°C for at least 20 seconds

• Compressor will shut down and alarm will be activatedCompressor will shut down and alarm will be activated

- IF compressor has been running for 20 seconds and - IF compressor has been running for 20 seconds and

TTww > 47°C for 20 seconds > 47°C for 20 seconds

• Compressor will run and alarm will be deactivatedCompressor will run and alarm will be deactivated

- IF 13°C - IF 13°C T Tww 40°C 40°C

3.4.3 Water Temperature Control 3.4.3 Water Temperature Control

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Under HEAT or Auto HEAT Modes,Under HEAT or Auto HEAT Modes,

• Compressor will NOT run and alarm will be activatedCompressor will NOT run and alarm will be activated

- IF T- IF Tww 10°C or T 10°C or Tww 35°C for at least 20 seconds 35°C for at least 20 seconds

• Compressor will shut down and alarm will be activatedCompressor will shut down and alarm will be activated

- IF compressor has been running for 20 seconds and - IF compressor has been running for 20 seconds and

TTww < 6°C for 20 seconds < 6°C for 20 seconds

• Compressor will run and alarm will be deactivatedCompressor will run and alarm will be deactivated

- IF 10°C - IF 10°C T Tww 35°C 35°C

3.4 Protections

3.4.3 Water Temperature Control 3.4.3 Water Temperature Control

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3.4 Protections3.4 Protections

3.4.4 Self Diagnostics3.4.4 Self Diagnostics EventEvent CDF LEDCDF LED Timer LEDTimer LED Other LEDsOther LEDs Error codeError code

1 Room sensor open or short Blink 1 time - Blink Fan Blink E1

2 Indoor coil sensor open Blink 2 times - Blink Sleep Blink E2

3 Outdoor coil/water sensor open Blink 3 times - Blink Dry Blink E3

4 Compressor overload/ Indoor coil sensor short/ Outdoor coil/water sensor short Blink 1 time Blink Cool Blink E4

5 Gas leak Blink 3 times Blink Cool & Dry Blink E5

6 Water pump fault Blink 2 times Blink Cool & Fan Blink E6

7 Outdoor defrost Blink Heat

8Outdoor coil sensor exist(MS model) Blink 5 times Blink Cool & Heat Blink E7

9Hardware error (tact switch pin short) Blink 6 times

Blink Heat, Cool, follow by Fan, Dry Blink E8

10 Outdoor water fault Blink 5 times Blink Cool & Sleep Blink E9

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4. Installation 4. Installation 4.1 Hanging the Unit4.1 Hanging the Unit

4.2 Location of Hanging4.2 Location of Hanging4.3 Refrigerant Piping4.3 Refrigerant Piping4.4 Water Piping4.4 Water Piping4.5 Drainage4.5 Drainage4.6 Cleaning & Flushing System4.6 Cleaning & Flushing System

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4. Installation

4.1 Hanging the Unit4.1 Hanging the Unit

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4. Installation

4.1 Hanging the Unit4.1 Hanging the Unit

• Recommend to use vibration isolators on Recommend to use vibration isolators on

the brackets to reduce noise and vibration the brackets to reduce noise and vibration

transmissions transmissions

• Spring isolator to be used for better vibration Spring isolator to be used for better vibration

control.control.

spring

bottom washer

PVC tube

Upper washer, welded onto bracket

nut

bracket

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4. Installation

4.2 Location of hanging4.2 Location of hanging

Install at a location that gives sufficient space clearance for:Install at a location that gives sufficient space clearance for:

• Hanging the unitHanging the unit

• Installing and maintaining the water pipingInstalling and maintaining the water piping

• Installing and maintaining the duct workInstalling and maintaining the duct work

• Accessing the unit’s internal parts via access panelAccessing the unit’s internal parts via access panel

• Removal of air filter for cleaning Removal of air filter for cleaning

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4. Installation

4.2 Location of hanging4.2 Location of hanging

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4. Installation

4.3 Refrigerant Piping4.3 Refrigerant Piping

Refrigerant Piping Length, Elevation and BendsRefrigerant Piping Length, Elevation and Bends

• When piping length becomes too long, both the capacity When piping length becomes too long, both the capacity and compressor reliability drop.and compressor reliability drop.

• As the number of bends increases, system piping As the number of bends increases, system piping resistance to the refrigerant flow increase thus lowering the resistance to the refrigerant flow increase thus lowering the capacity of the unit and as a result the compressor may capacity of the unit and as a result the compressor may become defective.become defective.

• Always choose the shortest path and follow the Always choose the shortest path and follow the recommendation as tabulated in the following pages.recommendation as tabulated in the following pages.

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4. Installation


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4. Installation


Additional ChargesAdditional Charges

• The precharged in the WSS unit is suitable for Standard The precharged in the WSS unit is suitable for Standard pipe of length up to:pipe of length up to:

• 2 meter for WSS10/15/20/25/30/40/50 A2 meter for WSS10/15/20/25/30/40/50 A

• 5 meter for WSS60A5 meter for WSS60A

• When the piping is more than the standard pipe length, When the piping is more than the standard pipe length, additional of 18.5 gram is needed for a meter of additional additional of 18.5 gram is needed for a meter of additional length.length.

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4. Installation

4.4 Water Piping4.4 Water Piping

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4. Installation


• Males couplings, BSPMales couplings, BSP

• In general, no pipe insulation required In general, no pipe insulation required

Water IN

Water OUT

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4. Installation


Flexible hoseFlexible hose

• To ease water pipe installationTo ease water pipe installation

• Steel reinforced PVC hose with 2 female BSP couplings at Steel reinforced PVC hose with 2 female BSP couplings at the end.the end.

• Use O-rings provided to have a leak-proof jointUse O-rings provided to have a leak-proof joint

Female couplings

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4. Installation

4.4 Water Piping4.4 Water PipingPressure

gauge

Water Inlet

Water Outlet

Gate Valve

Strainer

Automatic Shut-off

Valve

Flexible joint

Thermometer

Balancing Valve

WSS Unit

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4. Installation

4.5 Drainage4.5 Drainage

• Slanting drain pan design Slanting drain pan design

Drain

• Drain pipe must be inclined at an angle to allow free drainageDrain pipe must be inclined at an angle to allow free drainage

Drain pipe, ¾”

Slope downwards to the nearest drain(recommended 1:100)

U-Trap

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• Water circulating system must be cleaned and flushed of all Water circulating system must be cleaned and flushed of all construction dirt and debrisconstruction dirt and debris

• The system should be filled at the city water makeup connection with all The system should be filled at the city water makeup connection with all air vents open. After filling, vents should be closedair vents open. After filling, vents should be closed

• Supplemental heater and circulator pump should be shut offSupplemental heater and circulator pump should be shut off

• Use 27°C water as flush lingerUse 27°C water as flush linger

• Refill the system with clean waterRefill the system with clean water

4. Installation

4.6 Cleaning and Flushing System4.6 Cleaning and Flushing System

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Thank YouThank You

Documents

WATER SOUCE SYSTEM