MDDE Dryer Manual

7/24/2019 MDDE Dryer Manual

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SECTION 1: IMPORTANT INFORMATION

A. RECEIVING AND HANDLING

B. SAFETY PRECAUTIONS

SECTION 2: SPECIFICATIONS / COMPONENT IDENTIFICATIO

A. TECHNICAL SPECIFICATIONS

B. TECHNICAL DIMENSION

C. COMPONENT IDENTIFICATION

SECTION 3: INSTALLATION PROCEDURES

A. LOCATION REQUIREMENTS

B.

UNPACKG / SETTING UP C. DRYER ENCLOSUE REQUIREMENTS

D. FRSH AIR SUPPLY

E. EXHAUST REQUIREMENTS

F. ELECTRICAL INFORRMATION

G. GAS INFORMATION

H. STEAM INFORMATION

I. PREPARATION FOR OPERTION / START UP

J. PRE - OPERATIONAL TESTS

SECTION 4: OPERATING AND PROGRAMMING INSTRUCTIO

A. OPERATING INSTRUCTIONS

B. PROGRAMMING INSTRUCTIONS

C. SHUTDOWN INSTRUCTIONS

SECTION 5: WARRANTY INFORMATION

A. RETURNING WARRANTY CARD(S) B. WARRANTY

C. RETURNING WARRANTY PART(S)

SECTION 6: ROUTINE MAINTENANCE


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Anyone operating or servicing this machine must follow the safeParticular attention must be paid to the DANGER, and WARING, and C

appear throughout the manual.

Symbols Description

This warning symbol indicated the prethat could cause serious burns. Stainle

can become extremely got and should

IMPORTANT!Keep lint compartme

WARNING!Dry only water washed

for drying foam rubber or similar textu

materials.

Information Alert to the correct direc


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Symbols Description

WARNING! Put DRYCLEANED La

Information The machine is use 24

IMPORTANT!Clean cylinder and ch

operation by running a load of wet clominutes.

WARNING! To reduce the risk of ele

electric power before servicing

WARNING! This dryer must be exha

Exhaust ductwork should beexamine

necessary, every three months after in

thi bl h i t lli d t k M


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IMPORTANT INFORMATION

SECTION 1


The dryer is shipped in a protective stretch wrap cover with protectiv

top cover (or optional box) as a means of preventing damage in transit. Upon

/ or protective packaging, and wooden skid should bevisually inspected any damage whatsoever is noticed, inspect further before delivering carrier l

Dryers damaged in shipment:

1. All dryers should beinspected upon receipt and before they are signed

2.

If there is suspected damage or actual damage, the truckers receipt sho

3. If the dryer is damaged beyond repair, it should be refused. Those

damaged in a damaged shipment should be accepted, but the numb

refused must be noted on the receipt.

4. If you determine that the dryer was damaged after the trucker has

should call the delivering carriers freight terminal immediately and

company considers this concealed damage. This type of freight claim

paid and becomes extremely difficult when more than a day or two pas

delivered. It is your responsibility to file freight claims. Dryers / p

cannotbe claimed under warranty.

5. Freight claims are the responsibility of the consignee, and all claims m

receiving end.

Dryer assumes no responsibility for freight claims or damages.

6. If you need assistance in handling the situation, please contact the Drye

IMPORTANT:The dryer must betransported and handled in an upright p

A. RECEIVING AND HANDLING

B. SAFETY PRECAUTIONS


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3. What To Do If You Smell Gas:

a. DO NOTtries to light any appliance.

b.

DO NOTtouches any electrical switch.

c.

DO NOTuses any phone in your building.

d. Clear the room, building or area of alloccupants.

e. Immediately call your gas supplier from a neighbors phone. Fo

instructions.

f. If you cannot reach your gas supplier, call the fire department.

4.

Installation and service must beperformed by a qualified installer, ser

supplier.

5. Dryer(s) must beexhausted to the outdoors.

6.

Although Dryer produces a very versatile machine, there are some art

compositional cleaning method, should not bedried in it.

WARNING: Dry only water washed fabrics. DO NOT dry articles spcleaning solvents, a combustible detergent, or all purpose

COULD RESULT.

WARNING: DO NOT dry rags or articles coated or contaminated with

paint, or wax. EXPLOSION COULD RESULT.

WARNING: DO NOTdry mop heads. Contamination by wax or flammab

fire hazard.

WARNING: DO NOTuse heat for drying articles that contain plastic, f

similarly textured rubber materials. Drying in a heated baske

plastics or rubber and also may be a fire hazard.

7. A program should beestablished for the inspection and cleaning of th

exhaust ductwork and area around the back of the dryer. The frequ

cleaning can best be determined from experience at each location.

WARNING:The collection of lint in the burner area and exhaust ductwork

fire hazard.

8. For personal safety, the dryer must be electrically grounded in accordan

/ th N ti l El t i C d ANSI/NFPA NO 70 LATEST EDIT


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WARNING:Articles left in the dryer after the drying and cooling cycles ha

create a fire hazard.

12.

DO NOT operates steam dryers with more than 125 Psi steam prepressure can damage steam coil and / or harm personnel.

13. Replace leaking flexible steam hoses or other steam fixtures immedia

dryer with leaking flexible hoses. PERSONAL INJURY MAY RESU

14. Read and follow all caution and direction label attached to Dryer.

IMPORTANT: You must disconnect and lockout the electric supply and th

steam supply before any covers or guards are remove from

access to cleaning, adjusting, installation, or testing of any

(Occupational Safety and Health Administration)STA


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SPECIFICATIONS / COMPONENT IDENTIFICATION

SECTION 2

SPECIFICATIONS / COMPONENT IDENTIFIC

MODEL METRIC US 30 lb. 50Maximum Capacity (dry weight) kg lbs 13.6(30) 23

Basket Diameter mm. inch 762(30) 922Basket Depth mm. inch 762(30) 762

Basket Volume cu. m. cu. ft. 0.34(12.2) 0.5

Cabinet size (W D H):

A Machine Height at full mm. inch 1835(72.25) 1920

B Machine Depth mm. inch 1135(44.7) 1150

C Machine Width mm. inch 31.5(800) 973

Net Weight (approx.) Kg. lbs. 250(550) 318

GAS:Air Flow cmm. cfm 17(600) 21.2

Heat Input kcal / hr Btu / hr. 2260(90000) 32760(

Gas Inlet mm. inch 12.7(0.5) 12.7

Exhaust Duct mm. inch 203(8) 20

Shipping Weight (approx.) kg lbs 273(600) 350

STEAM:

Air Flow cmm cfm 17(600) 21.2

Steam consumption BHP BHP 2.6 4Operating Pressure kg / cm psi 5.6-8.79(80-125) 5.6-8.79

Steam supply mm. inch 19.05(0.75) 19.05

Steam return mm. inch 12.7(0.5) 12.7

Exhaust Duct mm. inch 203(8) 20

Shipping Weight (approx.) Kg. lbs. 282(620) 350

ELECTRICAL:

Air Flow cmm. Cfm 17(600) 21.2

Shipping weight (approx.) Kg. Ibs. 293(645) 360

A. TECHNICAL SPECIFICATIONS


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1.

Dryer Model 30 lb. Technical Dimension

Figure.2-1 Dryer Model 30 lb. Technical Dimension

B. TECHNICAL DIMENSION


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2. Dryer Model 50 lb. Technical Dimension



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3. Dryer Model 75 lb. Technical Dimension



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1.

Dryer Model 30, 50, 75 lb. Dryer Front View

No. Description

1 Microprocessor control / Ke

(Control)

2. Timer controller

3. Front panel assembly, top

C. COMPONENT IDENTIFICATION

2

3

3

4

5

5

6

7


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2. Dryer Model 30, 50, 75 lb. Dryer Rear View

No. Description

1. Heating element (Electric, Ga

2. Electric service box

3. Basket pulley

1

3

5

2

4

6


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INSTALLATION PROCEDURES

SECTION 3


Installation should be performed by competent technicians in accstate codes. In the absence of these codes, installation must conform

National Standards: ANSI Z223.1 LATEST EDITION (National Fuel Ga

NO.70 LATEST EDITION (National Electrical Code) or in Canada

conform to applicable Canadian Standards: CAN/CGA B149.1

CAN/CGA BI49.2 M91 (L.P. Gas) or LATEST EDITION (for GenePlumbing) or Canadian Electrical Code Parts 1 & 2 CSA C22.1 1990 or L

Electrical Connections).

Before installing the dryer, be sure the location conforms to local c

absence of such codes or ordinances location must conform with the N

ANSI Z223.1 LATEST EDITION, or in Canada, the Canadian InstallatB149.1 M91 (Natural Gas) or CAN/CGA B149.2 M91 (L.P. Gas) or L

General Installation and Gas Plumbing).

1. The dryer must beinstalled on a sound level floor capable of supportinrecommended that carpeting be removed from the floor area that the dr

2.

The dryer must not beinstalled or stored in an area where it will be exp

weather.

3. This dryer is for use in noncombustible locations.

4. Provisions for adequate air supply must beprovided as noted in this mAir Supply inSection D).

5.

Clearance provisions must bemade from combustible construction as n(refer to Dryer Enclosure Requirements inSection C).

6.

Provisions must bemade for adequate clearances for servicing and for this manual (refer to DryerEnclosure RequirementsinSection C).

7. Dryer must beexhausted to the outdoors (refer to Exhaust Requireme

8. Dryer must belocated in an area where correct exhaust venting can be this manual (refer to Exhaust Requirements in Section E)

A. LOCATION REQUIRMENTS


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Remove protective shipping material (i.e., plastic wrap and / or opti

dryer.

1. Unscrew nut the wood piece before operating the machine.

2. Take out the wood piece before operating the machine.

Figure.3-1 Protective Shipping Material

IMPORTANT:Dryer must betransported and handled in an upright positi

Bulkheads and partitions should bemade of noncombustible materia minimum of twelve (12) inches above the dryer outer top, except alon

which may be closed in if desired.

B. UNPACKING / SETTING UP

C. DRYER ENCLOSURE REQUIREMENTS


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NOTE:Air considerations are important for proper and efficient operation.

When the dryer is operating, it draws in room air, heats it, pass

tumbler (basket), and exhausts it out of the building. Therefore, the room

replenished from the outdoors.

If the make up air is inadequate, drying time and drying effic

affected. Ignition problems and sail switch fluttering problems on gas dry

also could have premature motor failure from overheating.

Air supply (make up air) must be given careful considerperformance of each dryer. An unrestricted source of air is necessary for e

rule, an unrestricted air entrance from the outdoors (atmosphere) of a min

foot (1 1/2 for the Model 75) is required for each dryer. If registers or lo

the openings, then the area must be increased. It is not necessary to have a

opening for each dryer. Common make up air openings are acceptable.

set up in such a manner that the make up air is distributed equally to the dr

EXAMPLE:for a bank of eight (8) dryers, two (2) openings measuring 2 acceptable. Refer to the illustration on next page for details.

Allowances must be made for remote or constricting passagewalocated at excessive altitudes or predominantly low pressure areas.

IMPORTANT:Make up air must beprovided from a source free of dry cMake up air that is contaminated by dry cleaning fumes w

damage to motors and other dryer components.

D. FRESH AIR SUPPLY


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Exhaust duct work should bedesigned and installed by a competen

sized duct work will create excessive back pressure which will result in sloof energy, and shutdown of the burner by the airflow (sail) switch, burner hi

hi heat protector thermostat. Refer to the illustrations on next pages for de

E. EXHAUST REQUIREMENTS


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Dryer Exhaust Duct Size: 6


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D Ai Fl 1400 f


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CAUTION:Improperly sized or installed exhaust duct work can create a po

Where possible, it is desirable to provide a separate exhaust air duct

should go as directly as possible to the outside air. Avoid sharp 90

o

rigducting; use 30oor 45oangles, instead. The radius of the elbows should pre

the diameter of the duct. To protect the outside end of the duct from the w

downward as indicated. Leave at least twice the diameter of the duct as cle

opening and the nearest obstruction. If the exhaust duct goes through the r

from the weather by using an 180oturn to point the opening down. Allow at

of the duct as clearance from the nearest obstruction. DO NOTuse screenopening of the exhaust duct. The ducting should be smooth inside with no

metal screws or other obstructions which will collect lint. When adding, dushould overlap the duct to which it is to be connected. Provide inspection d

out of lint from the main duct.

If it is not feasible to provide separate exhaust ducts for eachindividual dryers may be channeled into a common main duct. Each dryer

draft damper. The individual ducts should enter the bottom or side of the m

more than 45o. The main duct should be tapered with the diameter

individual duct is added.

Inadequate exhaust facilities may cause high temperature limit switc

to shut off the dryers. DO NOTdisables the switches, which are provided investigate the exhaust ducting. Any obstruction or air friction due to nume

the ducting will slow the passage of air through the system with resulting in

fire hazard.

1. Electrical Requirements

It is your responsibility to have all electrical connections made by

competent electrician to assure that the electrical installation is adequate an

state regulations or codes. In the absence of such codes, all electrical con

workmanship must conform to the applicable requirements of the NaANSI/NFPA NO. 70 LATEST EDITION.

IMPORTANT:Failure to comply with these codes or ordinances and / or thstipulated in this manual can result in personal injury or com

NOTE: Component failure due to improper installation VOIDS THE WAR

F. ELECTRICAL INFORMATION


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2. Electrical Service Specifications

Table 3-1Electric Service Specifications

Model 50 lb, Electrical, Gas and Steam (24 KW For Electr

IMPORTANT:208 V AC and 220-240 V AC ARE NOT THE SAME. When ordering, sp

NOTES:A. Fuse ratings are dual element-time-delay-current limiting, class RK1 or RK5 o

B. Circuit breakers are thermal magnetic (industrial) type only. For others, calcul

size according to appliance amp draw rating and type of breaker used.

C. Circuit breakers for 3 Phase dryers must be 3-pole type.

Approx.

Amp DrawWire SizeService

Voltage PhaseGas, Steam Elec. Gas, Steam Elec.

200-240 1 5.8 - 16 AWG/1.5sq.mm. -

200-240 3 8.0 74.6 14 AWG/2.5sq.mm. 4AWG/25sq.m

380-415 3 5.0 41.5 16 AWG/1.5sq.mm. 8AWG/10sq.m

440-480 3 4.4 35.9 16 AWG/1.5sq.mm. 8AWG/10sq.m







Approx.

Amp Draw Wire SizeServiceVoltage

Phase

Gas, Steam Elec. Gas, Steam Elec.

200-240 1 5.8 106 16AWG/1.5sq.mm. 2AWG/35sq.mm

200-240 3 4.6 71.2 16AWG/1.5sq.mm. 4AWG/25sq.mm

380-415 3 3.1 38.6 16AWG/1.5sq.mm. 8AWG/10sq.mm

440-480 3 2.8 33.3 16AWG/1.5sq.mm. 8AWG/10sq.mm








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a. Electric Service Gas and Steam Dryers

IMPORTANT:The dryer must beconnected to the electrical supply shown

affixed to the dryer. In the case of 208 VAC or 240 VAC, matchthe electric service specifications of the data label eWARNING:208 VAC and 240 VAC ARE NOTTHE SAME. Any damag

components due to improper voltage connections will automa

WARRANTY.NOTE:On gas dryers, to convert from 208 VAC to 240 VAC (or vice versa

ignition (DSI) transformer wiring must bechanged.

b.

Electric Service Electrically Heated Dryers

All electrically heated dryers must be connected to the electric supp

dryers data label which is affixed to the back side of the control (service

wires mustbeproperly sized to handle the rated current.

NOTE:Component failure due to improper voltage application will. VOID

3.

GroundingA ground (earth) connection must beprovided and installed in ac

local codes. In the absence of these codes, grounding must conform to app

the National Electrical Code (ANSI/NFPA NO.70 1984). The ground c

proven earth ground at the location service panel.

For added personal safety, when possible, it is suggested that a sepa

minimum) be connected from the ground connection of the dryer to a gro

DO NOTground to a gas pipe. The grounded cold water pipe must havemall the way to electrical ground. If there are any nonmetallic interruptions,

plastic, rubber, or other insulating connectors, they must be jumped witsecurely clamped to bare metal at both ends.

IMPORTANT:For personal safety and proper operation, the dryer must b

4.

Electrical ConnectionsA wire diagram is located on the back side of the control (service) do

a. Gas and Steam single Phase (1) Hookup

The electrical connections on all single phase gas (1) and steam


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Figure.3-10Electric service box cover position.

Electric servicebox cover



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b. Electric Dryers Single Phase (1) Hookup

The electrical input connection is made into the electric oven contac

rear of the dryer. Input connection wiring must be sized properly to handle t

This information is printed on the dryers data label.

NOTE:A separate circuit serving each dryer must beprovided.

Figure.3-12Electric power connector for electric heater

5. 3 Phase (3) Wiring Connections

The only electrical input connections to the dryer are the 3 phase

L2, L3, and sometimes Neutral) and ground. Single phase (1) power for th

any single phase (1) motors (if present) is done internally to the dryer.

input connection is required on a 3 phase (3) dryer.

a. Electrical, Gas and Steam Dryers 3 Phase (3) Hookup

For gas and steam dryers manufactured for operation at 3 ph

connections are made at the power distribution block located in the servic

left corner of the dryer. To gain access to the service box and contactor, the

Power connector(R, S or R, N)



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Figure.3-13Electric service box cover position.

Providing local codes permit, power to the dryer can be made by th

listed cord / pigtail (wire size must conform to the rating of the dryer), owired directly to the service breaker. In all cases, a strain relief should wiring enters the dryer and the service box.

Electric servicebox cover



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b. Electric Dryers 3 Phase (3) Hookup

The electrical input connection is made into the electric oven contac

rear of the dryer. Input connection wiring must be sized properly to han

draw. This information is printed on the dryers data label.

CAUTION:The dryer must be grounded. A ground lug has, been provided this purpose.

NOTE:A separate circuit serving each dryer must beprovided.

The only electrical connections to the dryer are the 3 phase (3)

sometimes neutral) and ground. Single phase (1) power for the controfactory at the contactor (relay), and no other wiring connections are necessa

Figure.3-15Electric power connector for electric heater

It is your responsibility to have all plumbing connections made by a

assure that the gas plumbing installation is adequate and conforms to local

codes. In the absence of such codes, all plumbing connections, material,

conform to the applicable requirements of the National Fuel Gas Code A

G. GAS INFORMATION

Power connector(R, S, T)



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IMPORTANT: Failure to isolate or disconnect dryer from supply as noted damage to the gas valves VOIDING THE WARRANTY.

WARNING: FIRE orEXPLOSION COULD RESULT.

1. Gas Supply

The gas dryer installation must meet the American National Stand

Code ANSI Z223.1 LATEST EDITION, or in CANADA, the Cana

CAN/CGA B149.1 M91 (Natural Gas) or. CAN/CGA B149.2 M91

EDITION, as well as local codes and ordinances and mustbe done by a qua

NOTE:Undersized gas piping will result in ignition problems, slow drying,energy, and can create a safety hazard.

The dryer must be connected to the type of heat / gas indicated affixed to the back of the dryer at the upper right hand comer. If this info

with the type of gas available, do not operate the dryer. Contact the distribut

the factory.

IMPORTANT: Any burner changes or conversions must bemade by a qua

The input ratings shown on the dryer data label are for elevations of

elevation requirements of over 2,000 feet were specified at the time the drye

the factory. The adjustment or conversion of dryers in the field for elevati

made by changing each burner orifice. If this conversion is necessary, con

sold the dryer or contact the Dryer factory.

2. Technical Gas Data

Table 3-2Technical Gas Data

Type of Gas

30 lb. 50 lb. Description

Natural

(NG)

LiquidPropane

(LPG)

Natural

(NG)

LiquidPropane

(LPG)Manifold Pressure (Inches H2O.) 3.5 - 4.0 10.5 - 11.0 3.5 - 4.0 10.5 - 11.0

Inline Pressure (Inches H2O.) 4.5 - 14.0 12.0 - 14.0 4.5 - 14.0 12.0 - 14.0

Drill Nozzle Size, Hole (mm.) 3 2 3 2

Inlet supply size, Minimum (Inches) 3/4 3/4 1 3/4

Inlet connection (Inches) 1/2 1/2 3/4 1/2



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regulation provided in an L.P. dryer. The water column pressure must be(L.P. tank) or an external regulator must beadded to each dryer.

Table 3-3Gas Data

3. Piping / Connections

Allcomponents / materials must conform to the National Fuel GaLATEST EDITION, or in Canada, the Canadian Installation Codes CAN

(Natural Gas) or CAN/CGA B149.2 M91 (L.P. Gas) or LATEST EDITI

It is important that gas pressure regulators meet applicable pressur

gas meters be rated for the total amount of the entire appliance Btus being s

The dryer is provided with a 1 inch N.P.T. inlet pipe connection

area of the burner box. The minimum pipe size connection (supply line) N.P.T. For ease of servicing, the gas supply line of each dryer must haveits

The size of the main gas supply line (header) will vary depending

travels from the gas meter or, in the case of L.P. gas, the supply tank

appliances on the same supply line, etc. Specific information regarding sup

determined by the gas supplier.

NOTE:Undersized gas supply piping can create a low or inconsistent presserratic operation of the burner ignition system.

Consistent gas pressure is essential at all gas connections. It is recom

pipe gas loop be installed in the supply line serving a bank of dryers. An in

must be installed in the gas supply line (header) if the (natural) gas pressurewater column pressure.

IMPORTANT:A water column pressure of 3.5 to 4.0 inches for natural gaL.P. dryers is required at the gas valve pressure tap of each

safe operation.

A 1/8 inch N.P.T. plugged tap, accessible for a test gauge connect

Machine Model Consumption (

Dryer 30 lb. 90000

Dryer 50 lb. 130000

Dryer 75 lb. 200000



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Figure.3-16Typical of Gas Installation

Piping must beinstalled in accordance with good commercial steammust be exercised when leveling steam dryers in final position. After level

downward pitch of the heat exchanger from front to rear with a leve

downward pitch of the return condensate manifold toward its outlet

downward pitches will result in probable water hammer and premature hea

leakage.

The presence of condensate in the steam will cause water hammexchanger failure. The steam supply connection must betaken from the topmain. If the supply run out to the dryer exceeds 20 feet, it should be

control valve with a proper trap and dirt pocket.

H. STEAM INFORMATION

MAINGAS SUPPLY TANKS

HIGH PRESSURE 0-300PSI

PRESSURE

RELIEF VALVE

HIGH PRESSURE

GAUGE 0-300PSI

PRESSURE GAUGE 0-60PSI

MEASURING 7PSI (0.48BAR)

HIGH PRESSURE

REGULATOR

GAS SUPPLY LINE 7PSI

LOW PRESSURE

SECOND STAGE

GAS REGULATOR

MAX INLET PRESSURE

10PSI (0.69BAR)

OUTLET PRESSURE

12-14 INCHES WC. (LPG)

4.5-14 INCHES WC. (NG)

Steam Inlet



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1. Low Pressure Steam (10 15 psig) Solenoid Valve Models

Adherence to the following instructions is necessary to eliminate c

hammer caused by wet steam.

The presence of condensate in the steam supply will cause water h

heat exchanger failure. The steam supply connection into the main supply li

minimum 10 riser. This will prevent any condensate from draining towards

The steam supply piping to the dryer must include a 12 rise alon

check valve. This will prevent any condensate from entering the steam coil.

Flexible hoses or couplings must beused. The dryer vibrates slightly

will cause the steam coil connections to crack if they are hard piped to the suShut off valves for each dryer should be installed in the supply, ret

lines. This will allow the dryer to be isolated from the supply and return m

maintenance work.

Install a float and thermostatic steam trap and check valve at least

near to the coil as possible.

A vacuum breaker should beinstalled in the piping. This will prevefrom causing a vacuum inside the coil and possibly damaging the coil.

The supply and return lines should beinsulated. This will save enesafety of the operator and maintenance personnel.

Water pockets in the supply line, caused by low points, will provid

possibly causing coil damage. All horizontal runs of steam supply piping

every foot back towards the steam supply header, causing any condensate in

header. Install a bypass trap in any low point to eliminate wet steam.condensate return line after the float and thermostatic trap. Drain only by

vented low pressure return line or condensate tank.



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2. High Pressure Steam (16 125 psig) Motorized Steam Valve Mod

Adherence to the following instructions is necessary to eliminate c

hammer caused by wet steam.

This is a slow opening and closing valve which will significantlyRemove the motor cover and connect the power wires to the motors term

diagram supplied with the dryer. The motor operates at 120 volts only, so a

be supplied with the dryer if input voltage to the dryer is higher than 120

remember that the motor requires electrical power to open and close the v

power is cut off when the steam valve is open it will remain open. Stea

direction of the arrow printed on the steam valve body.

The presence of condensate in the steam supply will cause water hheat exchanger failure. The steam supply connection into the main supply li

minimum 10 riser. This will prevent any condensate from draining towards

The steam supply piping to the dryer must include a 12 rise alon

check valve. This will prevent any condensate from entering the steam coil.

Flexible hoses or couplings must beused. The dryer vibrates slightwill cause the steam coil connections to crack if they are hard piped to the s

Shut off valves for each dryer should beinstalled in the supply, return, anThis will allow the dryer to be isolated from the supply and return m

maintenance work.

Install an inverted bucket steam trap and check valve at least 12 bel

the coil as possible.

A vacuum breaker should beinstalled in the piping. This will preve

from causing a vacuum inside the coil and possibly damaging the coil.The supply and return lines should beinsulated. This will save ene

safety of the operator and maintenance personnel.

Water pockets in the supply line, caused by low points, will provid

possibly causing coil damage. All horizontal runs of steam supply piping

every foot back towards the steam supply header causing any condensate in

header. Install a bypass trap in any low point to eliminate wet steam.

We recommend an inverted bucket trap for high pressure d

thermodynamic disc or impulse traps.

The condensate return line may be elevated after a bucket trap, but o

line pressure to overcome the head. Determine head, loss by deducting 12 P

il d l d d d 1/2 P i f h f f l i



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Figure.3-19High pressure steams supply 125 psig M

The following items should be checked before attempting to operate

1. Read and follow all caution, warning, and direction labels attached to th

2.

Check incoming supply voltage to be sure that it is the same as indilabel located on the back of the dryer control (service) door

3.

Check to assure that the dryer is connected to the type of heat / gas ind

label (GAS MODELS ONLY).

4. The sail switch damper assembly is installed and pre adjusted at th

shipment. However, the sail switch adjustment must bechecked to asafety control is functioning (GAS andELECTRIC MODELS ONLY

5.

Check bolts nuts, screws, terminals, and fittings for tightness.

6. Be sure all gas shut off valves are in the open position (GAS MODE

7. Be sure all back guard panels and service box covers have been replace

8 M k th li t t b k t h b d

I. PREPARATION FOR OPERTION / START UP



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All dryers are thoroughly tested and inspected before leaving th

preoperational test should be performed before the dryer is publicly uadjustments have changed in transit or due to marginal location (installation

1. Turn on electric power to the dryer.

2. Refer to the Operating Instructions for starting your particular model dr

3. GAS DRYERS:

a. When a gas dryer is first started (during initial startup), it has a te

the first ignition attempt. This is because the gas supply piping is take a few minutes for the air to be purged from the lines.

NOTE:Gas dryers are equipped with a Direct Spark Ignition (DSI) system wdiagnostics. If ignition is not established after three (3) attempts, th

module will lock out until it is manually reset. To reset the DSI syst

main door and restart the dryer.

b. A gas pressure test should betaken at the gas valve pressure tapthat the water column pressure is correct and consistent.

NOTE:Water column pressure requirements (measured at the pressure tap o

Natural Gas.. 4 Inches Water Column

L.P. Gas... 11 Inches Water Column

IMPORTANT:There is no regulator provided in an L.P. dryer. The water cberegulated at the source (L.P. tank), or an external regulaeach dryer.

4. Make a complete operational check of all safety related circuits:

a. Door switch

b.

Hi limit thermostatsc.

Cycling thermostats

d. Sail switch (gas and electric models only)

J. PRE-OPERATIONAL TESTS



37/87

tumbling old clothes or material in the basket (tumbler), us

remove the protective coating.

7. Check the electric service phase sequence (3 phase (3) models o

operating, check to see if the blower wheel (fan) is rotating in the pr

from the front, the blower wheel (impellor / fan) should spin in the clo

the phasing is correct. If the phasing is incorrect, reverse the two (2) l

L2, or L3 of the power supply to the dryer.

IMPORTANT:If the blower wheel (impellor / fan) is rotating in the wrongonly drastically reduce drying efficiency, but it can also cau

component failure.

OPERATING AND PROGRAMMING INSTRUCTIONS


38/87

SECTION 4

OPERATING AND PROGRAMMING INSTRUC

NOTE:Before attempting to start the dryer make sure that the main door is

drawer is securely in place.

Dual Timer Dryer

Manual Usual Timer Tumbler

1. Energize the electrical circuit to the tumbler at the disconnect switch

2. Open the lint panel and check for any accumulated lint on lint scr

against tumbler frame and lock panel securely.

3.

Open the cylinder door and load the cylinder with laundry. Ov

excessive drying time, wrinkled laundry, and wear to cylinder bearin4. Set the Temperature Selectorat HIGH(cotton load) (200F, 93

(180oF, 82oC), PERMA PRESS (150F, 65C), or anywhere betw

type of fabric being dried will determine the setting.

5. Set the Dry Timeselector for the number of minutes desired.

6. Set the Cool Downselector for the number of minutes desired.

7.

Press the PUSH TO STARTbutton in and hold it in for approThis starts the tumbler cycle.

IMPORTANT: If the cylinder door is opened during the cycle, the heating

and the motor will stop. To restart the cycle, door must be c

TO STARTbutton must be pressed in and held for appro

8. During the drying period the Dry Timeselector rotates counter cl

Timeselector reaches 0 the heat system will shut off, the Dry T

During the cooling period the Cool Down selector rotates. To t

Down selector reaches 0 the motor will stop and the Cool Dow

indicating the end of the cycle.

9 Wh h l i l d d d h l d

A. OPERATING INSTRUCTIONS



39/87

Figure.4-1 Manual Dual Timer Durable Press Control P

Microprocessor (Computer) Dryer

a.

Operation Instruction for Dryer (AUTO)

1. Turn on the main Power electric, air and steam.

2. Open the front door for loading and close the front door.

3. Choose one program from 0 9, then push START. The ma

operation when the program finishes.

4. End of the cycle.

Temperature SelectorCool Down Lamp D

Cool Down Timer

Start Button Clean Filter Lamp



40/87

b. Operation Instruction for Dryer (MANUAL)

1. Turns on the main power electric, air and steam.

2. Open the front door for loading and close the front door.

3. Press SINGLE the message TIME CYCLE appears (requ

duration)

4. Press ENTER the number 00000 is displayed (default pro

expressed in minutes).

5.

Press DOWN to cancel the zeroes, starting from the left, and

desired number of minutes.

6.

Press ENTER the message HEATING appears (requesti

temperature).

7. Press ENTER the number 00000 is displayed (default tem

or C).

8.

Press DOWN to cancel the zeroes, starting from the left, and

number of temperature.

9.

Press ENTER to confirm the input values. The message PRdisplayed.

10. Press START to start the drying cycle. Both the current bask

time remaining until the end of the cycle are displayed.

Programming and installation of fiber electronic dryer control

1. Hardware description

The electronic board is equipped with the following hardware features:

- Six digit alphanumeric display with high brightness (message

flash across the screen).

-

Keyboard with 16 keys.

- Buzzer for acoustic signals.

- 8 optoinsulated digital inputs (on / off).

- 6 digital relay outputs

B. PROGRAMMING INSTRUCTIONS



41/87

- Operation with temperature values expressed in C or F.

- If the drier being monitored allows reversal of the basket in mo

- If the drier is equipped with coin box or not (and if so which

specific price each program).

In addition, it is possible to name programs in such a way so that for

by the user they can give information on the type of fabric the program is co

3.

I/O signals to and from the dryer

The board is equipped with a set of digital inputs and outputs whose

Inputs:

1) Door open

A program will not run if the door is open during start up. If

opened while a program is running, the program will stop and the

relevant diagnostic message. The program restarts once the door is cl

2) Filter door open

Pre set for but not currently used.

3) Intake fan pressure failure

The program does notstart when the pressure alarm is active. F

starts too close together in time may not work because of fan iner

program starts and theres still no pressures, an alarm is generated

on the display and acoustic signal.

4)

Motors overloadIf the motors overheat during program execution, the program

alarm with relevant diagnostic on the display and acoustic signal.

5) Coin box 1

In the coin box version, this signal indicates that a type 1 coin be

value is configured in the specific field).

6)

Coin box 2

In the coin box version, this signal indicates that a type 2 coin

value is configured in the specific field).

7) Unburned gas present


O t t


42/87

Outputs:

1) Gas control unit reset

Remove the failure condition.It is piloted every time an attempt

2) Cycle under way

Indicate that a drying cycle is currently under way.This signal

program is interrupted (through the keyboard or by opening the door)

3) Filters cleaning

Every time a program starts it controls a compressed air jet to

could clog up with dust from the drying cloths.

4) Motor forward

In case of autonomous motor for basked movement, it activates i

5) Motor backward

In case of autonomous motor for basket movement, it activates it

6) Ventilation

Turns on the fan whose job is to circulate the hot air inside the d

motor driers, this controls both the fan and the basket motion.

7) Heating

Activated flame ignition.

8) RFU

4.

Keyboard

The keyboard is equipped with the following keys:

09: These keys have a different function depending on th

1. In case you have to choose a program to run it, each key corre

press a key to visualize the name of the associated program.

2. In case you are entering numerical values, each key inputs the

3. In case youre entering a program name (therefore an a

pressing each key will result in the inputting of the associa

letter) in turn.

EXAMPLE: If you want to enter "A", press button "0" tw


1 D i ti i thi b tt d


43/87

1. During program execution, pressing this button once suspend

possibility of restarting it from where it left oft) while pre

program for good.

2.

During programming, this button allows to exit the currentlyreturns to the program selection mode. All data entered up to th

3. If pressed while an acoustic alarm is going off it stops the c

buzzer.

SINGLE CYCLE: If pressed while the drier is waiting for a

allows to set a simplified program in

choose both temperature and program len

UP and DOWN: These keys are used during the various

the following purposes:

1. To select the type of currency during the machines configu

coin box operation).

2.

To select the program to modify during the program modificati

3.

To set YES / NOvalues where configuration require such a ch

EXAMPLE: When youre setting up coin box operation,

press DOWNfor NO.

4. When inputting a program name or number, pressing DOWN

erase the characters or the numbers displayed at the far right.

UP and 1: Press these two keys simultaneously while tprogram selection to access the password mo

board waits for a numeric password, and once t

possible to access the various machine and

phases.

ENTER: Below is a list of what can happen when this b

gas control unit operating under different modes

1.

After selecting a program (without the coin box), pressing thi

program. If this does not occur, it may be that one of th

supplied by the inputs is missing. In case of coin box operati

starts the machine only after reaching the minimum starting

selected program


5 Programming


44/87

5. Programming

Programming includes all the board configuration phases carried ou

according to the type of drier to be monitored (1 or 2 motors, coin box or n

international settings (language, currency), and lastly the definition of the drying cycle.

All programming phases start by entering the correct password, a

proceeds to type in the desired parameters.

All programming phases can be stopped at any time by pressing

entered up to that point will be stored, except for the current one.

All temperature range values listed in the following tables are expr

board is configured for operation in F, all values will be automatically conv

5.1 Machine configuration (Very high level programming)

The password required to access this phase is "748". Proceed as follo

at the same time. When the message PASSWO is displayed, press ENTE

The message 00000 appears, press three times the DOWN ke

starting from the right then type in "748" and press ENTER. Actual programIn the following table, programming is summarized with the mnemon

on the display, the values allowed when programming after pressingENT

each parameter.

Table 4-1Programming Machine Configuration

DISPLAY ALLOWED VALUES(UNIT OF MEASURE) DESCRIP

DISPLA 02

Display mode, allows specifying wduring the drying cycle. Available0 : Residual time / Temperature1 : Residual time2 : Temperature

COIN YN YES / NO Coin box operation

REVERSE YN YES / NOMotion with reversal. Allows to sequipped with motor for Autonomconsequently if motion can be rev


Table 4-2 Programming Instruction (High level programm


45/87

Table 4-2Programming Instruction (High level programm

5.3 Customizing the individual program (Low level programming

The password required to access this phase is "955". Proceed as follo

at the same time. At this point the messages PASSWO appears on the

ENTER.

DISPLAYALLOWED VALUES

(UNIT OF MEASURE)DESCRIP

CELSIUS YN YES / NO

Celsius. Enables or inhibits tempeThis holds true for all phases in wa temperature.When NOis typed in, all temperaFahrenheit degrees.

ANTICREASE YN YES / NOAnti creases. Enables or inhibitcrease at the end of the first dryin

TIME CYCLE 099 (min)Cycle time. This parameter specif

cycle.

T ROTATION 10200 (sec)

Rotation time (only if reversal is eequipped with a special motor forhave the basket alternate pause cy

This parameter indicates the maxrotation phase (both counterclockin the program.

T PAUSE 10250 (sec)

Rotation pause time (only if reverwith T ROTATON, it determine

move. In particular, this parametetime that the basket must stop for

reversal and the next.

HEATING 3099 (C)

Heating temperature. Establishes

valve that can be set for the singleduring the dying phase.

TIME COOL 015 (min)

Cooling down time. At the end ofturned off, but the basket keeps m

cooling down time. This parametduration of the cooling down time

program.

COOLING 2050 (C)

Cooling down temperature. The cafter a set amount of time (TIME

temperature is reached. This parammaximum temperature that can beorder to consider the cooling dow


Table 4-3 Programming Instruction (Low level programm


46/87

Table 4 3Programming Instruction (Low level programm

6

List the Phases carried out during program execution

DISPLAYVALUES ALLOWED

(UNIT OF MEASURE)DESCRIP

LANGUAGE 0...4

Language :0 : English1 : Italian

2 : French3 : German4 : Spanish

PROG 0009 Number of program modify

NAME 12 alphanumeric characters

Program selection through keys Uconfigured programs are displaypressing ENTER. Entering the ne

is displayed every time a progranumeric key, or every time the mpower failure occurred during pro

TIME CYCLE 099 (min)Cycle time. This parameter specifcycle (only if the coin option is di

T ROTATION10max. value set in high

level programming

Rotation time (only if reversal is ecan be reversed, this parameter almany seconds the basket moves (

clockwise direction).

T PAUSmin. value set in high level

programming250

Rotation pause time (only if reverDetermines for how many secondbetween one motion reversal and

HEATING

30C max. value set in

high level programming

Heating temperature. Temperaturbasket during the drying phase. T

C or F, depending on the value the high level programming.

TIME COOL0...max. value set in high

level programmingCooling down time. Duration (in down phase at the end of the dryin

COOLING20Cmax. value set inhigh level programming

Cooling down temperature. Tempdown phase ends after the drying C or F, depending on the value high level programming.

BUZZER 015(min)Duration (in seconds) of the acouprogram completion (end of the c


When the program starts the first phase to be carried out is the prog


47/87

W e e p og a s a s e s p ase o be ca ed ou s e p og

consists in clearing the humidity sensor, if equipped by piloting a jet o

seconds. In addition, gas control unit reset is carried out, and the Progr

turns on. This signal will remain active until the program is completed or

pauses due to opening of the door or single stop.

When this phase ends, the flow of compressed air is cut off and th

signal is turned off. At this point the fan turns on and the actual drying pha

the display shows the name of the selected program.

Heat adjustment is carried out during this phase so that the tempe

may be kept at the set value, with a 3 C hysteresis. The display showin

program under way, in other words actual temperature and residual time is u

In addition, basket movement is started. This, in case the machine is

motor for basket rotation, determines an alternate basket movement accordi

program. In case the machine is not equipped with such a motor, the baske

motor which gives it its motion.

The machine moves on to the next phase, cooling down, when the re

During the Cooling down phase the display shows the message CO

phase differs from the drying phase mainly because heat adjustment nowcompleted once the relevant temperature set in low level programming i

relevant time expires (also set in low level programming), depending

conditions occurs first.

At the end of the cooling down phase the remaining actuation are st

the program under way signal.

Depending on the setting of parameter ANTICREEASE YN in h

the end of cooling down determines:

If ANTICREASE YNwas set at YESthe machine moves on to

precedes the anti crease cycle.

If ANTICREASE YNwas set at NO the program ends.

In both cases the display indicates END and the buzzer goes off fo

programming.

The anti cease phase is preceded by a 2 minute pause interval, du

remains inactive.

At the end of this pause the anti crease cycle begins.

Thi l l t f i f 99 i t d it t


6.2 Restart after a power failure


48/87

p

In case a power failure (lack of supply voltage) occurs while a p

following information will be stored in memory number of the program

time, the phase under way and any other data required to restore the operaright before the power failure.When the power supply is restored, the displa

interrupted and the user can press ENTERto start it or STOPto stop it for g

6.3

Specific behaviors of the single cycle

The execution of a single cycle is rather simple compared to that of

case of single cycle, a group of settings is carried out using standard valu

namely:

The basket rotation time is set for 20 seconds.

Pause time during basket rotation is also 20 seconds.

The cooling down phase lasts 5 minutes until a temperature of 35

At the end of the program the buzzer goes off for 2 seconds.

7

Alarms

The alarm conditions handled by the machines are as follows:

The flame does not ignite (in case of a gas drier) after three attem

displayed isALM GAS.

Motor overloaded the message is ALM OVERLOAD.

Temperature falls below 1 C (this can be a sign of probe mal120 C (problems in handing heat adjustment or problems with

the message is TEMP PROBE.

If depression does not occur in the conduit within 10 second

relevant alarm will be generated with the message ALM DEPR

If the gas depression signal is still present upstream the gas cont

the fan has started, an alarm is generated with relevant message

When one of the above mentioned alarms takes place, the machine

off continually (until a button is pressed on the keyboard), and the current pr

8

Messages


Table 4-4Messages Instruction


49/87

ENGLISH ITALIAN FRENCH GERMAN

TEMPERA PROBE SONDA TEMPERA SONDE TEMPERAT TEM FUEHLER

BRAND NAME PRODUTTORE MARQUE MARKE

COIN YN GETTONI SN MON ON MUENZEN JN

REVERSE YN INVER SIONE SN INV ON REV JN

LANGUAGE LIGUA LANGUE SPRACHE

CELSIUS YN CELSIUS SN CELIIUS ON CELIIUS JN

ANTICREASE YN ANTIGRINZE SN ANTIRIDES ON ANTIKITER JN

TROTATION TROTAZIONE TERVOL ZEIT REVES

PRESS START PREMI START APPUIE START START DRUECK

COOLING DOWN RAFFERDDAMENTO REFROIDIS ZEIT ABKUEHL

ANTICREASE ANTIGRINZE ANTIRIDES ANTIKNITTER

END FINE FIN ENDE

YES SI OUI JA

NO NO NON NEIN

TIME HEATING TEMPO RISE TEHAUF THEIZ

HEATING RISCALDA CHAUF HEIZ

TIME CYCLE TEMPO CICLO TIME CYCLE ZEIT

TIME COOL TEMPORAFFR TEMPO REFR ZABKHU

COOLING RAFFERDDA REFR ABKUM

NAME NOME NOM NAME

PRICE PREZZO PRIX PREIS

ALM GAS PRES ALM PRESS GAS ALM PRESS GAZ ALM PRES DRUCK

ALM GAS ALM GAS ALM GAS ALM GAS

ALM OVERLOAD ALM OVERLOAD ALM SURCHARGE ALM UEVERLAST

FILTER OPER FILTRO APERT FILTER OUVERT OFFEN FILTER

ALM DEPRESSION ALM DEPRESSION ALM DEPRESSION ALM DEPRESSION

DOOR OPENED PORTA APERTA HUBLOT OUV OFFENE TUER

TIME END TEMPO FINE TEMP FIN ZEIT ENDE

DISPLA DISPLA DISPLA DISPLA

OFFSE OFFSE OFFSE OFFSE

TBASE TBASE TBASE TBASE


9 Password list


50/87

Following is an available passwords and their purpose.

Table 4-5Password list Instruction

If the dryer is to be shut down (taken out of service) for a period of t

beperformed;

1. Discontinue power to the dryer either at the external disconnects switch

2. Discontinue the gas supply (for Gas Models ONLY):

a.

SHUT OFF external gas supply shut off valve.

b. SHUT OFF internal gas supply shut off valve located at the gas v

3. Discontinue the steam supply (for Steam Models ONLY):

a. SHUT OFF steam valves in the supply lines and the return lines.

b. SHUT OFF internal gas supply shut off valve located at the gas v

PASSWORD FUNCTION

748 Access to very high level programming

916 Access to high level programming

955 Access to low level programming

750 Reset configuration content

383 Access to test procedure

743 Display working hour counter

347 Reset working hour counter

666 Set to on signal for reset gas control unit

667 Set to off signal for reset gas control unit

C. SHUTDOWN INSTRUCTIONS

WARRANTY INFORMATION


51/87

SECTION 5


Before any dryer leaves the Dryer factory test area, a warranty card

the main door. These warranty cards are intended to serve the customer in

Dryer receives the warranty card(s) back from a customer, we mail the appr

no charge), to the address indicated on the returned card. Second, we

installation date and warranty information to better serve you should you fiwarranty card did not come with your dryer, contact the DryerWarranty De

For a copy of the Dryer commercial warranty covering your particu

Dryer distributor from whom you purchased the equipment and request dry

distributor cannot be contacted or is unknown, warranty information ca

factory the Dryer Warranty Department

NOTE:Whenever contacting the Dryer factory for warranty information, be

dryer(s) model numberand serial numberavailable so that your i

in an expeditious manner.

All dryer or parts warranty claims or inquires should beaddressed

Department. To expedite processing, the following procedures must befollo

1. No parts are to be returned to Dryer without prior written authoriz

Authorization) from the factory.

NOTE:An R.M.A. (Return Material Authorization) is valid for only sixty

issue.

The R.M.A. issued by the factory / as well as any other correspon

returned part(s) mustbeincluded inside the package with the failed merchan

2 Each part must be tagged with the following information

A. RETURNING WARRANTY CARD(S)

B. WARRANTY

C. RETURNING WARRANTY PART(S)


3. The company returning the part(s) must clearly note the complete com

th t id f th k


52/87

on the outside of the package.

4. All returns must beproperly packaged to insure that they are notdam

claims are the responsibility of the shipper.

IMPORTANT: Noreplacements, credits, or refunds will be issued for mer

transit.

5. All returns should be shipped to the Dryer factory in such a manner th

proof of delivery can be obtained by the sender.

6.

Shipping charges are not the responsibility of Dryer all returns shofactory. AnyC.O.D. or COLLECTreturns will not be accepted.

IMPORTANT: NO replacements, credits, or refunds will be issued i

processed due to insufficient information. The party f

notified in writing, either by FAX or CERTIFIED M

Requested, as to the information necessary to process th

received by the Dryer Warranty Department within thirty

/ letter date, then no replacement, credit, or refund wmerchandise will be discarded.

ROUTINE MAINTENANCE

SECTION 6


53/87

SECTION 6

ROUTINE MAINTENANCE

A program and / or schedule should be established for periodic i

removal of lint from various areas of the dryer, as well as throughout the

frequency of cleaning can best be determined from experience at each locati

efficiency is dependent upon proper air circulation. The accumulation of

circulation. If the guidelines in this section are met a Dryer will provide mtrouble free, and most importantly, safe operation.

WARNING: Lint from most fabrics is highly combustible. The accumulati

POTENTIAL FIRE HAZARD.

WARNING: Keep dryer area clear and free from combustible materials, ga

flammable vapors and liquids.

NOTE: Suggested time intervals shown are for average usage which is con

(8) operational (running) hours per day and clean lint from lint draw

or fourth load.

NOTE:Frequency can best be determined at each location.

1. DAILY (beginning of each work shift)

Inspect lint screen and replace if torn.

2.

WEEKLYClean lint accumulation from lint chamber, thermostat, and micropro

sensor (sensor bracket) area.

WARNING:To avoid the hazard of electrical shock, discontinue electrical

STEAM DRYERS:

Clean steam coil fins. Suggest using compressed air and a vacuum clattachment.

NOTE:When cleaning steam coil fins, be careful notto bend the fins. If fin

using fin comb which is available from local air conditioning suppl

A. CLEANING

ROUTINE MAINTENANCE

4. EVERY 6 MONTHS


54/87

Inspect and remove lint accumulation in customer furnished exhaus

from dryers internal exhaust ducting.

Impeller (fan / blower) belts and drive belts should beexamined. Crfrayed belts shouldbereplaced. Tighten belts when necessary.

WARNING:The accumulation of lint in the exhaust duct work can create a

HAZARD.

WARNING:DO NOTobstruct the flow of combustion and ventilation air.

furnished back draft dampers in exhaust duct work. Inspect an

accumulation which can cause damper to bind or stick.

NOTE:A back draft damper that is sticking partially closed can result in slo

of the heat circuit safety switches or thermostats.

NOTE:When cleaning dryer cabinet(s), avoid using harsh abrasives. A prod

cleaning of appliances is recommended.

7 Days after Installation and Every 6 Months Thereafter

Inspect bolts, nuts, screws (bearing set screws), non permanent g

shut off valves, orifices, and grounding connections). Motor and drive be

Cracked or seriously frayed belts should be replaced. Tighten loose V

Complete operational check of controls and valves. Complete operatio

devices (door switch, lint drawer switch, sail switch, burner and hi limit th

1. Impeller motor (fan / blower) bearings are sealed bearing, NOlubricati

2. The motor bearings, idler bearings, and main tumbler shaft bea

lubricated. NO LUBRICATION IS NECESSARY.

B. ADJUSTMENTS

C. LUBRICATION

TROUBLE SHOOTING

SECTION 7


55/87

SECTION 7

TROUBLE SHOOTING

IMPORTANT:You must disconnect and lockout the electric supply and th

steam supply before any covers or guards are remove from

access for cleaning, adjusting, installation, or testing of any

(Occupational Safety and Health Administration) STAN

The information provided will help isolate the most probable comp

the difficulty described. The experienced technician realizes, however, thabroken / shorted wire may be at fault where electrical components are con

the suspected component itself. Electrical parts should always be checked

returned to the factory.

IMPORTANT:When replacing blown fuses, the replacement must beof t

fuse being replaced. The information provided should not

handbook for use by an untrained person in making repairsWARNING:All service and troubleshooting should beperformed by a qua

service agency.

WARNING:While making repairs, observe all safety precaution displayed

specified in this manual.

1.

No display (microprocessor (computer) models ONLY).1) Service panel fuse blown or tripped breaker.

2) Blown L1 fuse or L2 fuse.

3) Failed microprocessor controller (computer).

2. Drive motor not operating (does not start).

1) Failed drive motor contractor (relay).

2)

Failed drive motor.


3. Drive motor (reversing) operates in one direction onlystops and

A. MICROPROCESSOR MODELS

TROUBLE SHOOTING

e. Failed idler bearing or tumbler bearings.

5 Bl t t ti (d t t t)


56/87

5. Blower motor not operating (does not start).

1) Tripped or failed overload protector.

2)

Failed blower motor contractor (relay).

3) Failed motor.


6. Blower motor operates okay for a few minutes, and then stops and

1) Motor is overheating and tripping out on internal overload protect

a.

Motor air vent is clogged with lint.

b. Low voltage to motor.

c.

Failed motor.

d.

Failed (out of balance) impeller (fan / blower).

7. Both drive motor and blower motor not operating (do not start)...m

(computer) motor indicator dots are on.


8. Both drive motor and blower motor run a few minutes and stop...m

controller (computer) L.E.D. display continues to read time or perc

all indicator dots are off.

1) Fault in main door switch circuit.

a.

Failed main door switch.b. Main door switch out of adjustment.

c. Loose connections in the door switch circuit.

2) Fault in lint drawer switch circuit.

a. Lint drawer switch out of proper adjustment.

b. Loose connections in the lint drawer switch circuit.

9. Microprocessor controller (computer) display reads DOOR OPEN

1) Fault (open circuit) in main door switch circuit.

a. Door is not closed all the way.

TROUBLE SHOOTING

d. Broken connection / wire in main door or lint drawer circuit.

e Failed 24 VAC transformers


57/87

e. Failed24 VAC transformers.

11. Microprocessor controller (computer) display reads ALM DEPRE

1)

Fault (open circuit) in sail switches circuit (rear the machine).

a. Sail switch (rear the machine) is out of adjustment or has fail

b. Failed direction of blower or blower is not operation.

c. Filter (lint drawer) is not clean.

12. Microprocessor controller (computer) display reads ALM OVER

1)

Fault (open circuit) in overload contactor circuit (electrical box).

a. Drive motor is over current or has failed.

b.

Blower motor is over current or has failed.

13. Gas heating unit is not operating (no heat)...no spark at burner are

started and heat indicator dot is on.

1) Fault in the sail switch circuit

a. Sail switch is out of adjustment or has failed.

b. Sail switch damper is not closing or is fluttering.

- Lint drawer / screen are dirty.

-

Restriction inexhaust.

2) Fault in the burner hi limit circuit or the thermostat.

3)

Fault in the lint chamber sensor bracket hi heat protector thermo

4) Failed Direct Spark Ignition (DSI) module (burner control).

5) Failed Direct Spark Ignition (DSI) igniter / flame probe assembl


14. No heat...igniter sparks, burner goes on and off right away ...GAS M

1)

Direct Spark Ignition (DSI) igniter / flame probe out of adjustmthe flame area.

2)

Sail switch is fluttering.

a. Lint drawer / screen are dirty.

TROUBLE SHOOTING

4) Failed steam damper 24 VAC pneumatic solenoid switch.

5) Failed steam damper piston


58/87

5) Failed steam damper piston.

6) Steam damper stuck closed.

7)

Air flow control valve restricting incoming compressed air.

16. No heat...ELECTRIC MODELS ONLY.

1) Fault in sail switch circuit.

a. Sail switch out of adjustment and / or faulty (failed).

b. Sail switch not closing or fluttering

-

Check impeller (fan / blower) motor and rotation direction

- Restrictions in the location exhaust system.

2)

Failed oven hi limit.

3)

Failed lint compartment automatic (200) safety thermostat.

4) Failed oven contractor (relay).

5)

Failed microprocessor controller (computer).17. Dryer operates but is taking too long to dry.

1) Exhaust duct work run too long or is undersized...back pressure c

W .C.

2)

Restriction in exhaust.

a. Customer furnished exhaust back draft damper is sticking par

b.

Restriction in the duct work...check duct work from dryer all

outdoors.

3) Low and / or inconsistent gas pressure (for GAS MODELS ONL

4) Insufficient make up air.

5) Poor air / gas mixture at burner...yellow or poor flame pattern. Adj

adjustment shutters (for GAS MODELS ONLY).

6) Lint drawer / screen not being cleaned on a regular basis or often e

7) Extractors (washers) not performing properly.

8) Sail switch is fluttering...restriction in exhaust (forGAS MODEL

TROUBLE SHOOTING

18. Condensation on main door glass.

1) Too long undersized or improperly installed duct work


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1) Too long, undersized, or improperly installed duct work.

2) Dryer connected to common exhaust duct with another dryer and n

was installed in customer furnished duct work.

3)

Customer furnished back draft damper in duct work is sticking in p

position.

19. Dryer or scraping noises at basket (tumbler) area.

1) Check for object caught in basket (tumbler) / wrapper area.

2) Basket (tumbler) is out of proper alignment.

a.

Check both the vertical and the lateral alignment.

b. Check gap between the front panel and the basket (tumbler) f

have come loose and the basket (tumbler) walked forward or

3)

Loose basket (tumbler) tie rod.

4) Failed basket (tumbler) support.

20.

Excessive noise and / or vibration.1) Dryer not leveled properly.

2) Impeller (fan / blower) out of balance.

a. Excessive lint builds up on impeller (fan / blower).

b. Failed impeller (fan / blower).

3)

Loose basket (tumbler) tie rod.

4) Baskets (tumbler) out of adjustment or adjustment bolts (hardware

5) Failed basket (tumbler.) support.

6) Loose motor mount.

7) Failed idler and / or tumbler bearings.

8) V belts either too tight or too loose.

1. Dryer will not start...both drive and blower motors are not operatin

B. TIMER MODELS

TROUBLE SHOOTING

2. Drive motor (only) not operating (does not start).



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2) Failed reversing timer.

3)

Failed drive motor.

3. Blower (impeller / fan) motor (only) not operating (does not start).

1) Tripped or failed overload.

2) Failed impeller (blower / fan) motor contractor (relay).


4)

Failed blower (impeller / fan) motor.

4. Both drive motor and blower (impeller / fan) motor not operating (

indicator light is on.

1) Fault in L1 termination at reversing timer.

5. Drive motor (reversing) operates in one direction only...stops and r

direction.

1)

Failed reversing contractor (relay).


6. Heating unit is not operating (no heat)...no voltage at heating unit (

module or Steam Model damper system pneumatic solenoid).

Gas Models:

1)

Fault in sail switch circuit.

a. Sail switch is out of adjustment or has failed.

b. Sail switch damper is not closing or is fluttering.

- Check blower (impeller / fan) motor and rotation directi

- Restriction in exhaust.

- Lint drawer / screen are dirty.

2) Failed burner hi limit switch.

3) Failed lint compartment automatic (200) safety thermostat circuit

4) Failed Direct Spark Ignition (DSI) module (burner control).

TROUBLE SHOOTING


4) Failed oven contractor (relay).


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) ( y)

5) Failed heat selector switch.

Steam Models:

1) Steam dampers binding and / or stuck.

2) No (external) compressed air to the steam damper...80 Psi require


4) Failed steam damper 24 VAC pneumatic solenoid switch.

5)

Air flow control valve restricting incoming compressed air.

6) Fail heat selector switch.

7)

Failed steam damper piston.

7. Heat unit not operating for only one (1) temperature selection.

1) Failed thermostat corresponding to selection made.

2)

Failed heat selector switch.8. Dryer operates but is taking too long to dry load.

1) Heating unit is cycling on hi limit thermostat (forGAS MOD

MODELS ONLY).

2)

Steam damper is binding partially in the open position (for STEA

3) Lint and / or dust accumulation on steam coil fins(forSTEAM M

4)

Housekeeping.

a. Lint screen and lint compartment not being cleaned on a regu

b. Lint accumulations in location exhaust system.

5) Insufficient make up air.

6) Failed hi limit thermostat (forGAS MODELS and ELECTRIC

7)

Failed lint compartment automatic

(200)

safety thermostat circuit

8) Extractors not performing properly.

9) Low and / or inconsistent gas pressure (forGAS MODELS ONL

10) G l h l h ti l (f GAS MODELS ON

TROUBLE SHOOTING

9. Dryer is cycling on hi limit thermostat (GAS MODELS and ELEC

ONLY).


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1) Blower (impeller / fan) motor rotation direction incorrect.

2)

Insufficient make up air.3)

Restriction in exhaust system.

a. Undersized exhaust ducting.

4) Lint screen needs cleaning.

5) Failed hi limit thermostat.

6) Failed oven contractor / relay (forELECTRIC MODELS ONLY

10.

Condensation on main door glass.

1) Too long, undersized, or improperly installed duct work.

2) Dryer connected to common exhaust duct with another dryer, an

was installed in customer famished duct work.

3) Location furnished back draft damper in duct work is sticking in p

11.

Dryer scraping noise at basket (tumbler) area.

1) Check for object caught in basket (tumbler) / wrapper area.

2) Basket (tumbler) is out of proper alignment.

a. Check both vertical alignment and lateral alignment.

b.

Check gap between front panel and basket (tumbler)...set scre

loose, and basket (nimbler) walked forward or back.

3) Loose basket (tumbler) tie rod.

4) Failed basket (tumbler) support.

12. Excessive noise and / or vibration.

1) Dryer is not leveled properly.

2) Impeller (fan / blower) is out of balance.

a.

Excessive lint builds up impeller (fan / blower).

b. Failed impeller (fan / blower).

3) Loose basket (tumbler) tie rod.

SERVICE/PART INFORMATION

SECTION 8


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SERVICE/PART INFORMATION

Service must beperformed by a qualified trained technician, service

If service is required, contact the distributor from whom the dryer equipmen

distributor cannot be contacted or is unknown, contact the Dryer Service De

in your area.

NOTE:When contacting the Dryer Service Department, be sure to give the

numberand serial numberso that your inquiry is handled in an ex

Replacement parts should bepurchased from the distributor from whequipment was purchased. If the distributor cannot be contacted or is unknow

Parts Department for a distributor in your area. Parts may also be purchased

factory.

NOTE:When ordering replacement parts from the dryer dealer or dryer fact

them the correct model numberand serial numberso that your pa

processed in an expeditious manner.

A. SERVICE

B. PARTS LIST

Section 8 Parts List: Front Panel Assembly


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9

2

3

4

8

6

10

1

1

Section 8 Parts List: Drive and Blower Motor for Single Pha

33


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Model : 75Model : 30, 50 lb.

3

5

7

8

9

1

2

4

5

7

8

10

9

Section 8 Parts List: Drive and Blower Motor for Three Pha


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Part No.ItemMDDE 30 MDDE 50 MDDE 75

Qty.

A0 E008 819 A0 E008 805 A0 E008 805 1 Basket mo

12

3

4

5

7 6

8

Section 8 Parts List: Door and Lint drawer filter Unit


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Qty.

1 A0-A001-048-01 A0-A001-048-02 A0-A001-048-02 1 Door gaske

2 A0 E015 017 A0 E015 017 A0 E015 017 1 D it

5

6

9

10

12

11

11

1

2

4

3

14

13

Section 8 Parts List: Idler and Basket


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Part No.ItemMDDE 30 MDDE 50 MDDE 75 Qty.

1 A2-S030-021 A2-S050-021 A2-S075-021 1 Support

2 A0-M008-025 A0-M008-025 A0-M008-025 1 Basket p

3 A0-M009-033 A0-M009-033 A0-M009-033 1 Basket p

4 A0 A079 028 A0 A079 028 A0 A079 028 3 H

12

3

4

5

6

7

8

911

15

16

Option : Rotation Sensor

17

Section 8 Parts List: Controller Unit


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Model : Timer control

Model : Microprocessor control

2

6 6

7

8

9

10 10

5

4

1

4

11

8

137

6

Section 8 Parts List: Electrical Control Box for 1 Way Mod


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Model : Single Phase 2 Motor Model : Single Ph

Model : Three Phase 2 Motor

Control Circu

56

1 1

4 4

7

7

1 1

2 2

7

Option : Rotation

10

Section 8 Parts List: Electrical Control Box for Reversing Mo


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Qty.

A0-E004-065 A0-E004-065 A0-E004-065 3 Magneti1

A0-E024-011 A0-E024-011 A0-E024-011 2 Auxiliar

Model : Timer control

Control Circuit

8 8

1 1 1

2 2

3

4

56

7

Model : Options

109

Model : Micropr

1

2

56

Section 8 Parts List: Electrical Control Box (Front Side)


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Qty. D

1

2

3

4

5

6

7

4

5

6

5

7

5

8 9

Model : Electrical Control Unit-Gas Type

Model : Electrical Control Unit-Steam &Heating Typ

Model : Options

12

11

10

Section 8 Parts List: Thermostat Unit


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Model : Microprocessor control

12

3 3 4 5

Section 8 Parts List: Gas Burner Heating Unit


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Model : 30 lb. Model : 5

Model : 75 lb.

22

2

3 3

3

4

4

5

6

1

1

8 8

8

5

87

Section 8 Parts List: Electric Element Heating Unit


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5

2

1

3

4

4

6

6

7

Section 8 Parts List: Steam Heating Unit


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1 2

Section 8 Parts List: Optional Unit


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4

5

4

6

6

5

7

8

1

2


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Documents

MDDE Dryer Manual