American Dryer Corp T50, T20, T30, -T75 User Manual

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Gas Information________________________

It is your responsibility to have all plumbing connections, materials, and workmanship conform to local and state regulations or codes of the country of destination. In the absence of such codes, all plumbing connections, materials, and workmanship must conform to the applicable local requirements. In the USA this is the National Fuel Gas Code ANSI Z223.1-LATESTEDITION, or in Canada, the Canadian Installation CodesCAN/CGA-B149.1-M91(Natural Gas) orCAN/CGAB149.2-M91(L.P. Gas) or LATEST EDITION.

It is important that gas pressure regulators meet applicable pressure requirements, and that gas meters be rated for the total amount of all the appliance Btu being supplied.

Important

!Failure to comply with these codes or ordinances, and/or the requirements stipulated in this manual,

can result in personal injury and improper operation of the dryer.

For ease of service, the individual gas supply line of each dryer must have its own manual shutoff valve.

The dryer and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa) for non-CEdryers or 50 mb for CE dryers.

Failure to isolate or disconnect the dryer from supply as noted can cause irreparable damage to the gas valve, voiding the warranty.

Note

!The dryer must be isolated from the gas supply piping system by closing its individual manual

shutoff valve during any pressure test of the gas supply system at test pressures equal to or less than 1/2 psig (3.5 kPa) for non-CEdryers or 50 mb for CE dryers.

Warning

!Fire or explosion could result due to failure of isolating or disconnecting the gas supply as noted.

Note

!Undersized gas piping will result in ignition problems, slow drying, increased use of energy,

and can create a safety hazard.

The dryer must be connected to the type of heat/gas indicated on the data label and pressure must be confirmed. If this information does not agree with the type of gas available, do not operate the dryer. Contact the reseller who sold the dryer or contact the manufacturer.

The input ratings shown on the data label are for elevations up to 2,000 feet (610 meters), unless elevation requirements of over 2,000 feet (610 meters) were specified at the time the dryer order was placed with the factory. The adjustment or conversion of dryers in the field for elevations over 2,000 feet (610 meters) is made by changing each burner orifice. If this conversion is necessary, contact the reseller who sold the dryer or contact the manufacturer.

Important

!If connection to this appliance is made with a flexible hose, it must be suitable for the appliance

category in accordance with national installation regulations of the country of destination, and if in doubt the installer must contact the supplier. The manufacturer of this appliance does not recommend the use of flexible gas supply line/hose. An external gas supply shutoff must be provided.

CE Dryers

There is an N.P.T. to B.S.P.T. adaptor included with each dryer, which must be installed to the gas inlet. The adaptor is shipped in the tumbler.

Important

!Pipe joint compounds that resist the action of natural, propane, and butane gases must be used.

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Telephone 01422 822282

21

Heat Input/Gas Consumption/Orifice (Injector) Data (For Non CE [European] Models Only)

Gas Specifications for Non-CEApproved Dryers**

Model

Gas

Nominal

Supply

Gross

Orifice Size

Orifice

Burner

Heating Value

Pressure

Heat Input

 

 

(Injector)

Pressure

 

Type

 

 

 

 

 

 

Quantity

 

 

Btu/ft3

in wc

Btu/hr

kW

DMS

mm

in wc

 

 

T20

Natural

1,000

7.0-13.0

40,000

11.72

30

3.264

1

3.0

*Liquid Propane

2,500

11.0

40,000

11.72

49

1.854

1

10.0

 

T30

Natural

1,000

7.0-13.0

55,000

16.12

20

4.089

1

3.0

*Liquid Propane

2,500

11.0

55,000

16.12

44

2.184

1

10.0

 

T50

Natural

1,000

7.0-13.0

90,000

26.38

29

3.454

2

3.0

*Liquid Propane

2,500

11.0

90,000

26.38

47

2.994

2

10.0

 

T75

Natural

1,000

7.0-13.0

110,000

32.24

22

3.988

2

3.0

*Liquid Propane

2,500

11.0

110,000

32.24

44

2.184

2

10.0

 

Shaded areas are stated in metric equivalents

*Gas valve’s internal regulator disabled.

**Consult factory for elevations over 2,000 feet (610 meters) for correct orifice size.

Heat Input/Gas Consumption/Orifice (Injector) Data (For CE [European] Models Only)

Gas Specifications for CE Approved Dryers**

 

Gas

Nominal

Supply

Gross

Fuel

Orifice Size

Orifice

Burner

Model

Heating Value

Pressure

Heat Input

(Injector)

Pressure

Type

Consumption

 

 

 

 

 

 

 

 

 

Quantity

 

 

 

Btu/ft3

mb

Btu/hr

kW

 

DMS

mm

mb

 

Natural (I2H/I2E )

1,000

15-30

40,000

11.72

1.133 M3/H

30

3.264

1

6.7

 

Natural (I2L)

830

20-35

40,000

11.72

1.365 M3/H

30

3.264

1

9.2

 

Natural (I2E LL)

830

15-30

40,000

11.72

1.365 M3/H

30

3.264

1

9.2

T20

*Natural (I2E+)

1,000

20

40,000

11.72

1.133 M3/H

38

2.578

1

830

25

40,000

11.72

1.365 M3/H

38

2.578

1

 

 

*Butane (I3+)

3,175

28-30

40,000

11.72

0.845 kg/H

52

1.613

1

 

*Propane (I3+)

2,500

37

40,000

11.72

0.845 kg/H

52

1.613

1

 

Butane (I3B /P )

3,175

28-30/50

40,000

11.72

0.845 kg/H

49

1.854

1

18.0

 

Propane (I3P )

2,500

28-30/50

40,000

11.72

0.845 kg/H

49

1.854

1

23.0

 

Natural (I2H/I2E )

1,000

15-30

55,000

16.12

1.557 M3/H

22

3.988

1

6.9

 

Natural (I2L)

830

20-35

55,000

16.12

1.876 M3/H

22

3.988

1

9.5

 

Natural (I2E LL)

830

15-30

55,000

16.12

1.876 M3/H

22

3.988

1

9.5

 

*Natural (I2E+)

1,000

20

55,000

16.12

1.557 M3/H

31

3.048

1

T30

830

25

55,000

16.12

1.876 M3/H

31

3.048

1

 

 

*Butane (I3+)

3,175

28-30

55,000

16.12

1.162 kg/H

48

1.930

1

 

*Propane (I3+)

2,500

37

55,000

16.12

1.162 kg/H

48

1.930

1

 

Butane (I3B /P )

3,175

28-30/50

55,000

16.12

1.162 kg/H

44

2.184

1

18.1

 

Propane (I3P )

2,500

28-30/50

55,000

16.12

1.162 kg/H

44

2.184

1

24.9

 

Natural (I2H/I2E )

1,000

15-30

90,000

26.38

2.549 M3/H

29

3.454

2

7.2

 

Natural (I2L)

830

20-35

90,000

26.38

3.071 M3/H

29

3.454

2

8.9

 

Natural (I2E LL)

830

15-30

90,000

26.38

3.071 M3/H

29

3.454

2

8.9

 

*Natural (I2E+)

1,000

20

90,000

26.38

2.549 M3/H

35

2.794

2

T50

830

25

90,000

26.38

3.071 M3/H

35

2.794

2

 

 

*Butane (I3+)

3,175

28-30

90,000

26.38

1.901 kg/H

50

1.778

2

 

*Propane (I3+)

2,500

37

90,000

26.38

1.901 kg/H

50

1.778

2

 

Butane (I3B /P )

3,175

28-30/50

90,000

26.38

1.901 kg/H

47

1.994

2

18.1

 

Propane (I3P )

2,500

28-30/50

90,000

26.38

1.901 kg/H

47

1.994

2

24.9

 

Natural (I2H/I2E )

1,000

15-30

110,000

32.24

3.115 M3/H

22

3.988

2

6.9

 

Natural (I2L)

830

20-35

110,000

32.24

3.753 M3/H

22

3.988

2

9.5

 

Natural (I2E LL)

830

15-30

110,000

32.24

3.753 M3/H

22

3.988

2

9.5

 

*Natural (I2E+)

1,000

20

110,000

32.24

3.115 M3/H

31

3.048

2

T75

830

25

110,000

32.24

3.753 M3/H

31

3.048

2

 

 

*Butane (I3+)

3,175

28-30

110,000

32.24

2.324 kg/H

48

1.930

2

 

*Propane (I3+)

2,500

37

110,000

32.24

2.324 kg/H

48

1.930

2

 

Butane (I3B /P )

3,175

28-30/50

110,000

32.24

2.324 kg/H

44

2.184

2

18.1

 

Propane (I3P )

2,500

28-30/50

110,000

32.24

2.324 kg/H

44

2.184

2

24.9

Shaded areas are stated in metric equivalents

*Gas valve’s internal regulator disabled.

**Consult factory for elevations over 2,000 feet (610 meters) for correct orifice size.

22

JLA Limited

113429 - 9

Piping/Connections

T20

T30

T50

T75

 

 

 

 

3/8”

1/2”

1/2”

1/2”

CE dryer connections will be B.S.P.T., all others will be N.P.T.

There should be a minimum 6-inch(15.24 cm) clearance between the back guard and the first bend in the gas piping for ease of servicing. It is recommended that a gas shutoff valve be provided to the gas supply line of each dryer for ease in servicing.

The size of the main gas supply line (header) will vary depending on the distance this line travels from the gas meter or, in the case of L.P. gas, the supply tank, other gas-operatedappliances on the same line, etc. Specific information regarding supply line size should be determined by the gas supplier.

Note

!Undersized gas supply piping can create a low or inconsistent pressure, which will result in erratic

operation of the burner ignition system.

TYPICAL NATURAL GAS INSTALLATION

TYPICAL L.P. GAS INSTALLATION

Consistent gas pressure is essential at all gas connections. It is recommended that a 3/4-inch(19.05 mm) pipe gas loop be installed in the supply line servicing a bank of dryers. Anin-linepressure regulator must be installed in the gas supply line (header) if the (natural) gas pressure exceeds 13.0 in WC (32.34 mb) pressure.

A plugged tap, accessible for a pressure gauge connection, must be installed in the main gas supply line immediately upstream of the dryers.

Important

!Pipe joint compounds that resist the action of natural, L.P., and butane gases must be used.

Test all connections for leaks by brushing on a soapy water solution (liquid detergent works well).

Warning

!Never test for leaks with a flame!!!

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113429 - 9

Telephone 01422 822282

23

Converting from One Family

of Gas to Another ______________________

Warning (CE Dryers)

!This appliance must only be operated with the gas type indicated on the dryer’s data plate. If the

appliance is converted (gas type changed), a data plate amendment must be obtained from JLA Limited (dryer’s serial number is required to purchase a conversion kit).

Important

!Any burner changes or conversions must be made by a qualified professional.

The dryers manufactured for Belgium, Luxemburg, Greece, Estonia, Slovak Republic, Iceland, Malta, Poland and Cyprus cannot be converted from one family of gas to another.

Conversion from Natural Gas to Propane or Butane Gas

The following conversion allows the dryer to be operated with either propane, butane, or LPG. The use of gas valve kit (P/N 140414) disables the internal regulator of the gas valve. Therefore, the gas supply is ungoverned and an external regulator must be provided at the source of the supply (example L.P. tank) or the gas supply line to the dryer. The type of L.P. kit supplied will depend on the country the dryer is installed in.

Parts Required for Conversion:

Description

P/N

Qty

Unregulated Gas Conversion Kit**

140414

***

OR

 

 

Regulated L.P. Gas Conversion Kit****

140416

***

Burner Orifice (Injector)

*

***

L.P. Conversion Label

114515

1

*Refer to page 22 for orifice (injector) size.

**Required for unregulated propane or butane only.

***T20 and T30 will require 1; T50 and T75 will require 2.

****Required for regulated LPG or propane only.

Instructions

Disconnect electrical power to the dryer.

Close all shutoff valves in dryer’s gas supply line.

Important

!The T50 and T75 will require that the following procedures be performed on both burner

assemblies.

Open the panel located just below the loading door.

Locate the gas train and disconnect the union, 3 electrical plugs, and the gas train mounting screws from the burner. Carefully slide the gas train out of the gas train enclosure. (The carbon ignitor located at the far end of the gas train is very fragile.)

Remove 2 burner tube mounting screws and remove burner tube in order to gain access to the orifice.

Using a 3/8” wrench or socket, remove the existing orifice and replace it with an orifice from the kit.

Important

!Use extreme care when removing and replacing orifice (injector). This orifice (injector) is made of

brass, which is easily damaged.

Reinstall the burner tube onto the burner base.

Use a flat screwdriver to remove the regulator vent cap.

For unregulated L.P. gas (most countries): install blocking pin (P/N 140414).

For regulated L.P. gas (some countries): remove the white plastic regulator adjustment screw (under vent cap). Remove spring under screw and replace with spring from kit (P/N 140416). Replace regulator adjustment screw.

Install the gas train back into the dryer gas train enclosure. Be sure the tab at the rear of the gas train engages into the mounting slot.

Connect the union and the 3 electrical plugs.

Affix L.P. Conversion Label (P/N 114515) to the dryer’s data label.

Complete L.P. Kit Conversion Confirmation Label (P/N 114083) and affix this label as close as possible to the dryer’s existing dryer rating (data) label/plate.

Non-CEDryers

Affix L.P. Conversion Rating Label Addendum (P/N 114090) as close as possible to the dryer’s existing dryer rating (data) label/plate.

CE Dryers

Affix new data plate label that came with the conversion kit.

Open all shutoff valves, reconnect electrical power to the dryer, and test for leaks.

Important

!Never test for leaks with an open flame!!! Use a soapy water solution or product intended for that

purpose.

Unregulated Gas Valve

Regulate (govern) gas externally (refer to “Supply Pressure” in chart on page 22) to the correct gas pressure for the gas being used. Operate dryer through 1 complete cycle to ensure proper operation.

24

JLA Limited

113429 - 9

Regulated Gas Valve

Refer to “Gas Pressure Adjustment” on this page to adjust the gas valve to the appropriate burner pressure listed on page 22. The supply pressure must also match what is listed on page 22 for the type of gas to be used.

Important

!Conversions done improperly can result in a fire or explosion!

Conversion from Propane or Butane Gas to Natural Gas

The following conversion allows the dryer to be operated with natural gas.

Parts Required for Conversion:

Description

P/N

Qty

Vent Cap and Spring

140415

**

Burner Orifice (Injector)

*

**

*Refer to page 22 for orifice (injector) size.

**T20 and T30 will require 1; T50 and T75 will require 2.

Instructions

Disconnect electrical power to the dryer.

Close all shutoff valves in dryer’s gas supply line.

Important

!The T50 and T75 will require that the following procedures be performed on both burner

assemblies.

Open the panel located just below the loading door.

Locate the gas train and disconnect the union, 3 electrical plugs, and the gas train mounting screws from the burner. Carefully slide the gas train out of the gas train enclosure. (The carbon ignitor located at the far end of the gas train is very fragile.)

Remove 2 burner tube mounting screws and remove burner tube in order to gain access to the orifice.

Using a 3/8” wrench or socket, remove the existing orifice and replace it with an orifice from the kit.

Important

!Use extreme care when removing and replacing orifice (injector). This orifice (injector) is made of

brass, which is easily damaged.

Reinstall the burner tube onto the burner base.

Select from the following 3 options, the conversion to be performed:

Converting from unregulated L.P. to regulated natural gas: use a flat screwdriver to remove the cap with blocking pin and install the regulator vent cap from the kit (P/N 140415).

Converting from unregulated L.P. to unregulated natural gas: no change to the regulator is required.

Converting from regulated L.P. to regulated natural gas: remove the white plastic regulator adjustment screw (under vent cap). Remove spring under screw and replace with spring from kit (P/N 140415). Replace regulator adjustment screw.

Install the gas train back into the dryer gas train enclosure. Be sure the tab at the rear of the gas train engages into the mounting slot.

Connect the union and the 3 electrical plugs.

Open all shutoff valves, reconnect electrical power to the dryer, and test for leaks.

Operate the dryer through 1 complete cycle to ensure proper operation.

With dryer operating, check the manifold (burner) pressure at the tap on the gas valve to ensure proper operating pressure (refer to chart on page 22).

Gas Pressure Adjustment

Disconnect electrical power to the dryer.

Important

!The T50 and T75 will require that the following procedures be performed on both burner

assemblies.

To adjust gas valve’s internal regulator, remove the regulator vent cap with the regulator adjustment tool, which is located on the back guard between the gas inlet and exhaust outlet (refer to the illustration below for proper use of adjustment tool). Be sure to use one of the wide ends of the adjustment tool for removal of the vent cap. Once vent cap is removed, the narrow end of the adjustment tool can be used to turn the plastic adjustment screw in the valve. Turn the screw clockwise to raise pressure and counterclockwise to lower pressure.

Gas (burner) pressures are measured with the burner in operation for all burner adjustment conditions. Therefore once the necessary adjustments have been made, the dryer must be operated in a heating cycle to verify that the pressure is correct. If it is not correct, you must discontinue the power to the unit and make further adjustments. Repeat these steps as many times as necessary to achieve the correct burner pressure. Once the adjustment of the valve is complete, the vent cap must be replaced and sealed with, for example, paint to prevent maladjustment by the user.

Edge #1 for vent cap

Edge #2 for adjustment screw

Warning (CE Dryers)

!This appliance must only be operated with the gas type indicated on the dryer’s data plate. If the

appliance is converted (gas type changed), a data plate amendment must be obtained from JLA Limited.

Conversions done improperly can result in a fire or explosion!

113429 - 9

Telephone 01422 822282

25

Gas Pressure Testing _________________

For proper operation, the gas pressure must be correct, consistent and maintained at the gas pressure rates shown on page 22. Provisions are made at the gas valve for taking gas pressure readings.

There are 2 types of devices used to measure gas pressure. They are the spring/mechanical type gauge and the manometer. The use of the spring/mechanical type gauge is not recommended because they are very easily damaged and are not always accurate. The preferred type of gauge is the manometer because it is a simple device to use and is highly accurate. A manometer is simply a glass or transparent plastic tube with a scale graduated in inches or mb. When it is filled with water and pressure is applied, the water in the tube rises, showing the exact gas pressure.

Gas Pressure Test Procedure

Turn gas cock in gas supply line to “OFF” position.

50 Hz dryers: Back out miniature screw inside pressure tap and attach manometer (refer to the illustration on page 24).

60 Hz dryers: Install pressure tap and attach manometer (refer to illustration on page 24).

Turn gas cock to “ON” position.

Start the dryer in Heat Mode and wait for ignition. Gas manifold pressure should be as shown on page 22.

If the gas pressure needs to be adjusted, refer to “Gas Pressure Adjustment” on page 25.

Once test is complete, turn gas cock to “OFF” position. Remove manometer. Tighten screw inside the pressure tap or install plug.

Turn gas cock to “ON” position and check for leaks with soap solution with main burner “ON.”

Steam Information ____________________

It is your responsibility to have all plumbing connections made by a qualified professional to ensure that the steam plumbing installation is adequate and conforms with local, state, and country regulations or codes.

Care must be exercised when leveling steam dryers into final position. After leveling the dryer, check the downward pitch of the heat exchanger from front to rear with a level. Likewise, check the downward pitch of the return condensate manifold toward its outlet part. Absence of these downward pitches will result in probable water hammer and premature heat exchanger fracture and leakage.

The presence of condensate in the steam will cause water hammer and subsequent heat exchanger failure. The steam supply connection must be taken from the top of a welldripped steam main. If the supply run-outto the dryer exceeds 25 feet (7.6 meters), it should be dripped just before the control valve with a proper trap and dirt pocket.

Important

!Failure to comply with the requirements stipulated in this manual can result in component failure,

which will void the warranty.

Steam Coil pH Level

The normal pH level for copper type steam coils must be maintained between a value of 8.5 to 9.5. For steel type steam coils the pH level must be maintained between a value of 9.5 to 10.5. These limits are set to limit the acid attack of the steam coils.

Important

!Coil failure due to improper pH level will void the warranty.

26

JLA Limited

113429 - 9

Steam Requirements – High Pressure

Operating Steam Pressure

Model

Maximum

 

Heat Input

Consumption (Approx.)

Inlet /

 

(Normal Load)

@ 125 psi (8.6 bar)

Return

 

 

 

 

 

 

 

 

 

 

 

 

T20

150 psig*

1.0

MPa

1.2 Bhp

45 lb/hr

20.41 kg/hr

1/2” / 1/2”

T30

150 psig*

1.0

MPa

1.75 Bhp

63 lb/hr

28.58 kg/hr

1/2” / 1/2”

T50

150 psig*

1.0

MPa

3.75 Bhp

127.5 lb/hr

57.83 kg/hr

3/4” / 3/4”

T75

150 psig*

1.0

MPa

4 Bhp

136 lb/hr

61.69 kg/hr

3/4” / 3/4”

 

 

 

 

 

 

 

 

Shaded areas are stated in metric equivalents

*The minimum operating pressure for optimum results is 100 psig (689.47 kPa).

Installation Instructions

To ensure an adequate supply of steam is provided, be sure that the steam supply lines and steam return lines are sized and laid out as stipulated in this manual. Inadequate steam supply lines and steam return lines or improper steam plumbing will result in poor performance and can cause component failure. Clean, dry steam must be provided to the dryer.

Important

!Steam coil failure due to water hammer by wet steam will void the warranty.

The presence of condensate in the steam supply line will cause water hammer and subsequent heat exchanger (steam coil) failure. The steam supply connection into the main supply line must be made with a minimum 10-inch(25.4 cm) riser. This will prevent any condensate from draining towards the dryer.

The steam supply line to the dryer must include a 12-inch(30.48 cm) riser along with a drip trap and check valve. This will prevent any condensate from entering the steam coil.

Flexible hoses or couplings must be used. The dryer vibrates slightly when it runs and this will cause the steam coil connections to crack if they are hard piped to the supply and return mains.

Shutoff valves for each dryer should be installed in the supply line, return line, and drip trap return line. This will allow the dryer to be isolated from the supply main and the return main if the dryer needs maintenance work.

Install an inverted bucket steam trap and check valve at least 12-inches(30.48 cm) below the steam coil as close to the coil as possible. A trap with a minimum capacity of 100 lb (45.35 kg) of condensate per hour at 125 psi (8.62 bar) is needed for each unit. (Based on 2 times the steam consumption per hour.)

The supply line and the return line should be insulated. This will save energy and provide for the safety of the operator and maintenance personnel.

Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly causing steam coil damage. All horizontal runs of steam supply piping should be pitched 1/4-inch(6.35 mm) for every 1 foot (0.31 meters) back towards the steam supply header causing the condensate in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.

Important

! Flexible hoses/couplings must be used. Coil failure due to hard plumbing connections will void

the warranty.

Water Information _____________________

Before You Start

Check Local Codes and Permits

Call your local water company or the proper municipal authority for information regarding local codes.

Important

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

ensure that the plumbing installation is adequate and conforms to local, state, and federal regulations or codes.

It is the installer’s or owner’s responsibility to see that the required water pressure, pipe size, or connections are provided. The manufacturer assumes no responsibility if the fire suppression system is not connected, installed, or maintained properly.

Installation

Water Supply

The fire suppression system must be supplied with a minimum water pipe size of 1/2-inch(12.7 mm) and be provided with 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) of pressure.

If the rear area of the dryer or the water supply is located in an area where it will be exposed to cold/freezing temperatures, provisions must be made to protect these water lines from freezing.

Warning

!If the water in the supply line or water solenoid valve freezes, the fire suppression system will be

inoperative!!

Water Connections

The water connection is made to the 3/4”-11.5NH hose adaptor, which is shipped in the tumbler and must be installed to the 1/2” N.P.T. water connection, located at the upper rear of the dryer. A flexible supply line/coupling must be used in an effort to avoid damaging the electric water solenoid valve.

Note

!The 3/4”-11.5NH is a standard hose coupling screw thread. It is not to be confused with 3/4”

N.P.T. The sealing of an NH connection is made with a washer opposed to the mating threads of an N.P.T. assembly. The 2 thread designs are not compatible.

It is recommended that a filter or strainer be installed in the water supply line.

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Important

!Flexible supply line/coupling must be used. Solenoid valve failure due to hard plumbing

connections will void warranty.

The dryer is to be connected to the water mains using a new hose set and the old hose set should not be reused.

Optional Manual Bypass

Provisions are made in the dryer’s fire suppression system for the installation of an optional manual bypass. The connections for the manual bypass are made at the “tee” or “three way” fitting located in the outlet supply side of the water solenoid valve. The manual ball cock shutoff valve must be located outside of the dryer at a distance from the dryer where it is easily accessible. The use and connection of this manual bypass is at the option or discretion of the owner.

The water connection for the manual bypass is made to the “tee” or “three way” fitting, which has a 3/8” F.N.P.T. and a coupling must be used to provide the minimum 1/2-inch(12.7 mm) supply (feed) line.

Electrical Requirements

No independent external power source or supply connection is necessary. The 24-voltpower to operate the fire suppression system is accomplished internally in the dryer (from the dryer controls).

Warning

!Electrical power must be provided to the dryer at all times. If the main electrical power supply to the

dryer is disconnected, the fire suppression system is inoperative!!

Preparation for Operation/Start-Up___

The following items should be checked before attempting to operate the dryer:

Read all “CAUTION,” “WARNING,” and “DIRECTION” labels attached to the dryer.

Check incoming supply voltage to be sure that it is the same as indicated on the data label. In the case of 208 VAC or 240 VAC, the supply voltage must match the electric service exactly.

GAS MODELS – Check to ensure that the dryer is connected to the type of heat/gas indicated on the dryer data label.

GAS MODELS – Be sure that all gas shutoff valves are in the open position.

Be sure all back panels (guards) and electric box covers are in place.

Be sure the service doors are closed and securely in place.

Be sure the lint door/drawer is securely in place.

Rotate the tumbler (drum) by hand to be sure it moves freely.

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

Check that the vent is connected to the dryer and is exhausted to the outdoors.

STEAM MODELS – Check to ensure all steam shutoff valves are open.

Preoperational Test ___________________

All dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions.

Turn on electric power to the dryer.

Refer to the Operating Instructions for starting your particular model dryer.

Gas Dryers

Open all shutoff valves.

When a gas dryer is first started (during initial start-up),it has a tendency not to ignite on the first ignition attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for the air to be purged from the lines.

Note

!During the purging period, check to be sure that all gas shutoff valves are open.

A gas pressure test should be taken at the gas valve pressure tap of each dryer to ensure that the water column pressure is correct and consistent.

Note

!Water column pressure requirements (measured at the pressure tap of the gas valve body) must be

verified.

Important

!In most cases there is no regulator provided in an L.P. dryer. The water column pressure must be

regulated at the source (L.P. tank), or an external regulator must be added to each dryer.

Electrical Dryers

Check to ensure that electric oven/contactor assembly is activating.

Safety Related Circuits

Make a complete operational check of all safety related circuits:

Door Switch(es)

Hi-LimitThermostats

Sail Switch

Make a complete operational check of all operating controls.

Tumbler Coating

The tumbler is treated with a protective coating. We suggest dampening old garments or cloth material with a solution of water and nonflammable mild detergent and tumbling them in the tumbler to remove this coating.

Microprocessor Programs/Selections

Each microprocessor controller (computer) has been preprogrammed by the factory with the most commonly used parameter (program) selections. If computer program changes are required, refer to the computer programming manual which was shipped with the dryer.

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Preoperational Instructions __________

Important

!For more detailed information regarding the microprocessor controller (computer), refer to the

microprocessor user’s manual included with the dryer.

Coin Models

Microprocessor Controller (Computer)

When the microprocessor controller (computer) is in the ready state, the L.C.D. screen will display “Ready, Insert $XX.XX (amount) to Start”.

Insert coin(s). Once the correct “Amount to Start” has been inserted, the L.C.D. will display “Select Temperature”.

Select temperature by pressing “HI,” “MED,” or “LO.” The cycle will start and the L.C.D. will display the Dry Cycle selected and the remaining time.

The dryer will continue through the drying and cooling cycles, until the vended time has expired.

Note

!To stop the dryer, open main door. Continuation of the cycle will resume only after the door has been

closed and any one of the 3 temperature selections is pressed.

Non-CoinModels

Microprocessor Controller (Computer)

The L.E.D. display reads “READY” (no cycle in progress).

Press the letter on the keypad corresponding to the cycle desired (e.g. key “D”).

The dryer will then start (i.e. blower, tumbler, and heat).

The L.E.D. display will read MANUAL DRYING CYCLE D,

___MIN REMAIN.

Note

!The dryer can be stopped at any time by pressing the “STOP/CLEAR” key, at this time the dryer will

go into a cycle pause. If the “STOP/CLEAR” key is pressed again at this point, the cycle that was in progress will be cancelled and returned to the “READY” state.

When the programmed drying time has expired, the non-coinmicroprocessor controller (computer) will proceed into the Cool Down Cycle.

Once the Cool Down Cycle begins at the end of the heat cycle, the L.E.D. display will read COOL DOWN TEMP ___/

___ MINUTES remaining. At the end of the heat cycle, the dryer will shut off the heat and continue the fan and tumbler until the Cool Down Time or temperature is reached.

Shutdown Instructions ________________

If the dryer is to be shutdown (taken out of service) for a period of time, the following must be performed:

Discontinue power to the dryer either at the external disconnect switch or the circuit breaker.

Discontinue the heat supply:

Gas Models – Discontinue the gas supply. Shut off external gas supply shutoff valve.

Shut off internal gas supply shutoff valve located in the gas valve burner area.

Steam Models – Discontinue the steam supply. Shut off external (location furnished) shutoff valves.

Service/Parts Information ____________

Service

Service must be performed by a qualified trained technician. If service is required, contact the distributor from whom the equipment was purchased. If the distributor cannot be contacted or is unknown, contact the JLA Service Department for a distributor in your area.

Note

!When contacting the Service Department, be sure to give them the correct model number and serial

number so that your inquiry is handled in an expeditious manner.

Parts

Replacement parts should be purchased from the distributor from whom the equipment was purchased. If the distributor cannot be contacted or is unknown, contact the Parts Department for a distributor in your area. Parts may also be purchased directly from the factory by calling the JLA Parts Department at 01422 822282 or you may FAX in your order at 01422 824390.

Note

!When ordering replacement parts from the distributor or the manufacturer, be sure to give

them the correct model number and serial number so that your parts order can be processed in an expeditious manner.

Warranty Information _________________

Returning Warranty Cards

Before any dryer leaves the factory test area, a warranty card is placed on the inside of the main door glass. These warranty cards are intended to serve the customer where we record the individual installation date and warranty information to better serve you should you file a warranty claim.

If a warranty card did not come with your dryer, contact the JLA Warranty Department at 01422 822282.

Important

!A separate warranty card must be completed and returned for each individual dryer.

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Note

!Be sure to include the installation date when returning the warranty card(s).

Warranty

For a copy of the commercial warranty covering your particular dryer(s), contact the distributor from whom you purchased the equipment and request a dryer warranty form. If the distributor cannot be contacted or is unknown, warranty information can be obtained by contacting the JLA Warranty Department at 01422 822282.

Note

!Whenever contacting the factory for warranty information, be sure to have the dryer’s model

number and serial number available so that your inquiry can be handled in an expeditious manner.

Routine Maintenance _________________

Cleaning

A program and/or schedule should be established for periodic inspection, cleaning, and removal of lint from various areas of the dryer, as well as throughout the ductwork system. The frequency of cleaning can best be determined from experience at each location. Maximum operating efficiency is dependent upon proper airflow. The accumulation of lint can restrict this airflow. If the guidelines in this section are met, the dryer will provide many years of efficient, trouble free, and most importantly, safe operation.

Warning

!Lint from most fabrics is highly combustible. The accumulation of lint can create a potential fire

hazard. Keep dryer area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

Note

!Suggested time intervals shown are for average usage, which is considered 6 to 8 operational

(running) hours per day.

Important

!Dryer produces combustible lint and must be exhausted to the outdoors. Every 6 months,

inspect the exhaust ducting and remove any lint buildup.

Suggested Cleaning Schedule Every Third or Fourth Load

Clean the lint screen every third or fourth load. A clogged lint screen will cause poor dryer performance. The lint door/ drawer is located just below the loading door of the dryer. Open the lint door/drawer, brush the lint off the lint screen, and remove the lint. Inspect lint screen and replace if torn.

Note

!

To remove the lint drawer from the dryer, pull

 

 

drawer out approximately halfway. Press the lint

door/drawer stop downward and pull the drawer out.

Important

!The frequency of cleaning the lint screen can best be determined from experience at each location.

Weekly

Clean lint accumulation from lint chamber, thermostat, and microprocessor temperature sensor area.

Warning

!To avoid the hazard of electrical shock, discontinue electrical supply to the dryer.

Steam Dryers

Clean the steam coil fins. It is suggested that compressed air and a vacuum cleaner with brush attachment be used.

Warning

!When cleaning steam coil fins, be careful not to bend the fins. If fins are bent, straighten by using

a fin comb, which is available from local air-conditioningsupply houses.

90 Days

Remove lint from gas valve burner area with a dusting brush or vacuum cleaner attachment.

Clean any lint accumulation in and around the motor(s) casing opening.

Note

!To prevent damage, avoid cleaning and/or touching ignitor/flame-probeassembly.

Every 6 Months

Inspect and remove lint accumulation in customer furnished exhaust ductwork system and from dryer’s internal exhaust ducting.

Note

!The accumulation of lint in the exhaust ductwork can create a potential fire hazard.

Do not obstruct the flow of combustion and ventilation air. Check back draft dampers in the exhaust ductwork. Inspect and remove any lint accumulation, which can cause the damper to bind or stick.

A back draft damper that is sticking partially closed can result in slow drying and shutdown of heat circuit safety switches or thermostats.

When cleaning the dryer cabinet(s), avoid using harsh abrasives. A product intended for the cleaning of appliances is recommended.

7 Days After Installation

and Every 12 Months Thereafter

A competent professional should inspect bolts, nuts, screws, setscrews, grounding connections and nonpermanent gas connections (unions, shutoff valves, and orifices). Belts should be examined. Cracked or seriously frayed belts should be replaced. Complete an operational check of controls and valves. Complete an operational check of all safety devices (lint door/drawer switch, door switches, sail switch, and hi-limitthermostats).

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