Maytag MLG30PDAWS, MLG30PDAWW, MLG30PDBWS, MLG30PDBWW Installation Instructions

MLG30

Installation Manual

Stack Dryer

RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE

WFR113543E

Dryer Safety _____________________________________________________

WARNING:

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in serious injury, death or property damage.

–

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS:

–

Installation and service must be performed by a qualified installer, service agency, or the gas supplier.

•

Do not try to light any appliance.

•

Do not touch any electrical switch; do not use any phone in your building.

•

Clear the room, building, or area of all occupants.

•

Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

•

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



It is recommended that the owner post, in a prominent location, instructions for the customer’s use in the event the customer smells gas. This information should be obtained from your gas supplier.



Post the following warning in a prominent location.

FOR YOUR SAFETY

Do not store or use gasoline or other ammable vapors and liquids in the vicinity of this or any other appliance.

In the State of Massachusetts, the following installation instructions apply:

■ Installations and repairs must be performed by a qualified or licensed contractor, plumber, or gas fitter qualified or licensed by

the State of Massachusetts.

■ Acceptable Shut-off Devices: Gas Cocks and Ball Valves installed for use shall be listed.

■ A flexible gas connector, when used, must not exceed 4 feet (121.9 cm).

IMPORTANT: The gas installation must conform with local codes, or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1.

The dryer must be electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, Part 1, CSA C22.1.

Important Information __________

IMPORTANT: A means of restraint must be used to prevent

straining of the gas supply when the dryer is moved.

An external means of power removal (disconnect device) must be provided by the installer.

The dryer must be used only for drying water washed fabrics.

The dryer must never be operated with any of the back guards or service panels removed.

The wiring diagram for the dryer is located behind the front control panel.

“Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper operation.”

List of Acronyms _______________

HVAC Heating, Ventilating, and Air-Conditioning in WC Inches of Water Column UL Underwriters Laboratory NPT National Pipe Thread

Table Of Contents ______________

Specications .................................................................. 4

Installation Instructions .................................................. 5

Location Requirements ................................................... 5

Dryer Enclosure Requirements ...................................... 6

Fresh Air Supply Requirements ...................................... 6

Exhaust Requirements .................................................... 6

Electrical Information ...................................................... 8

Gas Information................................................................ 9

Preparation for Operation / Start-Up ........................... 12

Preoperational Test ........................................................ 13

Operating Instructions .................................................. 13

Shutdown Instructions .................................................. 13

Service / Parts Information .......................................... 14

Routine Maintenance ................................................... 14

Data Label Information ................................................. 15

Specications ____________________________________________________

MAXIMUM CAPACITY (DRY WEIGHT) PER POCKET 30 lb 13.60 kg TUMBLER DIAMETER 271/4" 69.21 cm

TUMBLER DEPTH 30" 76.20 cm TUMBLER VOLUME PER POCKET 10.1 cu ft 286 L

TUMBLER / DRIVE MOTOR PER POCKET 1/2 hp 0.37 kW DOOR OPENING (DIAMETER) 211/2" 54.61 cm

DOOR SILL HEIGHT TOP POCKET / BOTTOM POCKET 527/8" / DRYERS PER 20' / 40' CONTAINER 11 / 22 DRYERS PER 48' / 53' TRUCK 30 / 33

VOLTAGE AVAILABLE 120V 1ø 2W 60 Hz APPROXIMATE NET WEIGHT 675 lb 306 kg APPROXIMATE SHIPPING WEIGHT 710 lb 322 kg AIRFLOW PER POCKET 400 cfm 11.3 cmm HEAT INPUT PER POCKET 72000 Btu/hr 18143 kcal/hr

GAS

EXHAUST CONNECTION (DIAMETER) 8" 20.3 cm INLET PIPE CONNECTION PER POCKET 1/2" F.N.P.T.

Shaded areas are stated in metric equivalents

NOTE: The manufacturer reserves the right to make changes in specications at any time without notice or obligation.

/4" 134.3 cm / 36.2 cm

INCOMING ELECTRIC

CONNECTIONS

53 3/8"

[135.5 cm]

52 1/4"

80 3/4"

[205.2 cm]

[132.6 cm]

3 1/8"[7.8 cm]

[12.8 cm]

3 1/2"

[8.9 cm]

29 3/4"

[75.4 cm]

[12.6 cm]

12 1/4"

[31.2 cm]

[20.3 cm]

EXHAUST CONNECTION

MAIN DOOR OPEN

4 7/8"

[12.3 cm]

GAS INLET CONNECTION

1/2" F.N.P.T

78 1/4"

[198.8 cm]

51 7/8"

[131.8 cm]

13 1/4"

[33.7 cm]

DRYER REAR

42 5/8"

[108.3 cm]

[10.2 cm]

Installation Instructions _________

Location Requirements _________

WARNING

Excessive Weight Hazard

Use two or more people and mechanical equipment to lift, move and install dryer.

Failure to do so can result in back or other injury.

Installation should be performed by qualied professional in accordance with local, state, and country codes. In the absence of these codes, the installation must conform to applicable American National Standards: ANSI Z223.1- LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (National Electrical Code) or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGAB149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Propane Gas) or LATEST EDITION (for General Installation and Gas Plumbing) or Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION (for Electrical Connections).

Tools Required

ʍ Utility Knife to remove packaging ʍ 9/16" Box wrench or 9/16" socket to remove pallet bolts ʍ #2 Phillips screwdriver to open box cover ʍ Pipe wrench for gas connections ʍ 7/8" open end wrench or adjustable wrench to install

coin box lock

Leveling feet adjustment

®†

ʍ TORX

adjustment ends

ʍ 1/4" socket or 1/4" open end wrench to make the

adjustment

Moving to Final Location

Move the dryer near the point of installation.

Use a carton knife to cut the plastic lm.

Remove all plastic wrap and corrugated cardboard.

Dispose of/recycle all packaging material.

Leveling Dryer

The dryer is equipped with 4 leveling legs, 1 at each corner of the base. For optimum performance the dryer should be level front-to-back and side-to-side.

T20 TORX® T25 to open front and rear to get foot

WARNING

Explosion Hazard

Keep flammable materials and vapors, such as gasoline, away from dryer.

Failure to do so can result in death, explosion, or fire.

IMPORTANT: The dryer must be installed on noncombustible oor only.

The dryer is for use in noncombustible locations. Before installing the dryer, be sure the location conforms to

local codes and ordinances. In the absence of such codes or ordinances the location must conform with the National Fuel Gas Code ANSI.Z223.1 LATEST EDITION, or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Propane Gas) or LATEST EDITION (for General Installation and Gas Plumbing).

The operation of this dryer may affect the operation of other types of gas dryers, which take their air for safe combustion from the same room. If in doubt, consult the dryer manufacturer(s).

The dryer must be installed on a sound level oor capable of supporting its weight. Carpeting must be removed from the oor area that the dryer is to rest on.

The dryer must not be installed or stored in an area where it will be exposed to water and/or weather.

Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh Air Supply Requirements section).

Clearance provisions must be made from combustible construction as noted in this manual (refer to Dryer Enclosure Requirements section).

Provisions must be made for adequate clearances for servicing and for operation as noted in this manual (refer to Dryer Enclosure Requirements section).

The dryer must be installed with a proper exhaust duct connection to the outside as noted in this manual (refer to Exhaust Requirements section).

The dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual (refer to Exhaust Requirements section).

IMPORTANT: The dryer should be located where a minimum amount of exhaust ducting will be necessary.

The dryer must be installed with adequate clearance for air openings into the combustion chamber.

IMPORTANT: The dryer must be installed in a location/ environment, which the ambient temperature remains between 40°F (4.44°C) and 130°F (54.44°C).

†®Torx and T20 are registered trademarks of Acument Intellectual Properties, LLC.

Dryer Enclosure Requirements ___

Bulkheads and partitions should be made of noncombustible material.

MAKE-UP AIR OPENINGS

A=12"(30.48 cm) B=24"(60.96 cm)

The requirement to allow the dryer door to open completely

is 29" (74 cm). A minimum overhead clearance of 12" (30.48 cm) is

required. Dryer should be positioned a minimum of 12" (30.48 cm)

away from the nearest obstruction. 24" (60.96 cm) is recommended for ease of installation, maintenance, and service.

1/16" (1.5875 cm) minimum is required.

Flooring should be level or below dryer cabinet for ease of

removing panels during maintenance. Dryers may be positioned sidewall to sidewall, however a

1/16" (1.5875 cm) minimum allowance must be made for the opening and closing of the control door, along with the removal of panels during maintenance.

4" (10.16 cm) maximum.

Fresh Air Supply Requirements __

When the dryer is operating, it draws in room air, heats it, passes this air through the tumbler, and exhausts it out of the building. Therefore, the room air must be continually replenished from the outdoors. If the make-up air is inadequate, drying time and drying efciency will be adversely affected. Ignition problems and sail switch “uttering” problems may result, as well as premature motor failure from overheating. The dryer must be installed with provisions for adequate combustion and make-up air supply.

EXAMPLE: For a bank of four dryers, 2 unrestricted openings measuring 12" by 24" (30.48 cm by 60.96 cm) are acceptable.

To compensate for the use of registers or louvers used over the openings, this area must be increased by approximately 33%. Make-up air openings should not be located in an area directly near where exhaust vents exit the building.

Allowances must be made for remote or constricting passageways or where dryers are located at high altitudes or predominantly low pressure areas.

IMPORTANT: Make-up air must be free of dry cleaning solvent fumes. Make-up air that is contaminated by dry cleaning solvent fumes will result in irreparable damage to the motors and other dryer components.

NOTE: Component failure due to dry cleaning solvent fumes will void the warranty.

Exhaust Requirements __________

Exhaust ductwork should be designed and installed by a qualied professional. Improperly sized ductwork will create excessive back pressure, which results in slow drying, increased use of energy, and shutdown of the burner by the airow (sail) switch, burner hi-limits, or lint chamber hi-limit protector thermostat. The dryer must be installed with a proper exhaust duct connection to the outside.

Air supply (make-up air) must be given careful consideration to ensure proper performance of each dryer. Fresh air ventilation openings shall not be blocked and/or sealed. As a general rule, an unrestricted air entrance from the outdoors of 1.0 ft2 (0.093 m2) is required for each dryer. (Based on 1 inch2 [6.5 cm2] per 1,000 Btu [252 kcal].)

It is not necessary to have a separate make-up air opening for each dryer. Common make-up air openings are acceptable. However, they must be set up in such a manner that the make-up air is distributed equally to all the dryers.

As per the National Fuel Gas Code, “Exhaust ducts for type 2 clothes dryers shall be constructed of sheet metal or other noncombustible material. Such ducts shall be equivalent in strength and corrosion resistance to ducts made of galvanized sheet steel not less than 26 gauge (0.0195" [0.50 mm]) thick.”

The ductwork should be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible. Single or independent dryer venting is recommended. It is suggested that the use of 90° turns be avoided; use 30° and/or 45° bends instead. The radius of the elbows should preferably be 1-1/2 times the diameter of the duct. All ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which will collect lint. When adding ducts, overlap the duct being connected. All ductwork joints must be taped to prevent moisture and lint from escaping into the building. Inspection doors should be installed at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.

IMPORTANT: Exhaust back pressure measured by a manometer/magnehelic in the exhaust duct must be no less than 0 and must not exceed 0.3 in WC (0.75 mb).

NOTE: It is recommended that exhaust or booster fans not be used in the exhaust ductwork system except where necessary to maintain exhaust back pressure (in the exhaust duct) between zero and 0.3" water column. Where employed, booster fans must not activate the dryer airow proving switch (sail switch) when the dryer is not in operation.

NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible materials, the opening must be 2" (5.08 cm) larger than the duct (all the way around). The duct must be centered within this opening.

The ductwork for this dryer must be suitable for the appliance category in accordance with national installation regulations of the country of destination.

If the length of the duct run or quantity of elbows used exceeds the above noted specications, the cross-sectional area of the ductwork may need to be increased.

IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be increased to an extent. When the ductwork approaches the maximum limits noted in this manual, a professional HVAC rm should be consulted for proper venting information.

Single Dryer Venting (10" Duct)

IMPORTANT: A minimum exhaust duct size of 10" (25.4 cm)

must be used for extended runs. For a 10" (25.4 cm) run where a maximum of two elbows are

used (refer to the illustration below), the ductwork from the dryer outlet must not exceed 45' (13.7 m).

This calculation of 45' (13.7 m) compensates or allows for the use of a maximum of two elbows. Refer to the illustration below.

SINGLE DRYER VENTING (10" DUCT)

2 x D CLEARANCE

8"(20.3 cm)

DRYER

CONNECTION

10"(25.4 cm) RND DUCT

NOTE A

ROOF

45 FT

MAX

(13.7 m)

INSPECTION

DOOR

CONNECTION

8"(20.3 cm)

DRYER

45 FT MAX

(13.7 m)

INSPECTION

DOOR

NOTE A

10"(25.4 cm)

DUCT

2 x D CLEARANCE

Outside Ductwork Protection

To protect the outside end of the horizontal ductwork from the weather, a 90° elbow bent downward should be installed where the exhaust exits the building. If the ductwork travels vertically up through the roof, it should be protected from the weather by using a 180° turn to point the opening downward. In either case, allow at least twice the diameter of the duct between the duct opening and the nearest obstruction (refer to the diagram).

IMPORTANT: Do not use screens, louvers, or caps on the outside opening of the exhaust ductwork.

Single Dryer Venting (8" Duct)

IMPORTANT: A minimum exhaust duct size of 8" (20.3 cm)

must be used. For an 8" (20.3 cm) run where a maximum of two elbows are

used (refer to the illustration below), the ductwork from the dryer outlet must not exceed 10' (3.0 m).

This calculation of 10' (3.0 m) compensates or allows for the use of a maximum of two elbows. Refer to the illustration below.

SINGLE DRYER VENTING

2 x D CLEARANCE

8" (20.32 cm) RND DUCT NOTE A

ROOF

10 FEET

MAXIMUM

(3.05 m)

INSPECTION

DOOR

10 FEET MAXIMUM (3.05 m)

INSPECTION

DOOR

NOTE A

8" (20.32 cm)

RND DUCT

2 x D CLEARANCE

VERTICAL HORIZONTAL

NOTE A OPENING MUST BE 2"(5.08 cm) LARGER THAN THE DUCT (ALL THE

WAY AROUND). THE DUCT MUST BE CENTERED WITHIN THIS OPENING

If the length of the duct run or quantity of elbows used exceeds the above noted specications, the cross-sectional area of the ductwork may need to be increased.

Multiple Dryer (Common) Venting

If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be channeled into a “common main duct.” The individual ducts should enter the bottom or side of the main duct at an angle not more than 45° in the direction of airow. The main duct should be tapered, with the diameter increasing before each individual 10" (25.4 cm) duct (when dryer common exhaust is used) is added.

IMPORTANT: No more than four dryers or eight tumblers total should be connected to one main common duct.

The main duct may be any shape provided that the minimum cross-sectional area is maintained. The illustration below shows the minimum cross-sectional area for multiple dryer venting. These gures must be increased if the main duct run from the last dryer to where it exhausts to the outdoors is unusually long (over 30' [9.1 m]) or has numerous elbows (more than one) in it.

VERTICAL HORIZONTAL

NOTE A OPENING MUST BE 2"(5.08 cm) LARGER THAN THE DUCT (ALL THE

WAY AROUND). THE DUCT MUST BE CENTERED WITHIN THIS OPENING

MULTIPLE DRYER VENTING WITH 10"(25.4 cm) DIAMETER EXHAUST

NOTE A

HORIZONTAL

2 x D CLEARANCE

FORMULAS TO CALCULATE DUCTING CROSS SECTIONAL AREA

CROSS SECTIONAL AREA OF A ROUND DUCT= 0.785(19.939 mm)

CROSS SECTIONAL AREA OF A RECTANGULAR DUCT= W x H

NOTE A: OPENING MUST BE 2"(5.08 cm) LARGER THAN THE DUCT (ALL THE

WAY AROUND). THE DUCT MUST BE CENTERED WITHIN THIS OPENING.

CONNECTIONS AT COMMON DUCT

NO OF DRYERS 4 3 2 1

MINIMUM CROSS (SQ IN)

SECTION AREA (SQ CM)

MINIMUM ROUND (IN)

DUCT DIAMETER (CM)

30' MAXIMUM

x D WHERE D= DIAMETER OF THE DUCT

TO INDIVIDUAL

WALL

TUMBLER EXHAUST MUST ENTER MAIN

EXHAUST DUCT AT 45 ANGLE

IMPORTANT: NO MORE THAN 4 DRYERS (8 TUMBLERS) CAN BE CONNECTED TO ONE COMMON DUCT (VENT).

WHERE W= WIDTH AND H= HEIGHT

210 164 120 80

1354 1058 774 516

16 14 12 10

40 35 30 25

9.1 m

DRYERS

NOTE A

INSPECTION DOORS

29.625"(75.25 cm) MINIMUM

DISTANCE BETWEEN

VERTICAL

2 x D CLEARANCE

ROOF

DUCTS

Electrical Information ___________

Electrical Requirements

All electrical connections must be made by a properly licensed electrician. This is to ensure that the electrical installation is adequate and conforms to local, state, and national regulations or codes of the country of destination. In the absence of such codes, all electrical connections, materials, and workmanship must conform to the applicable requirements of the National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION or in Canada, the Canadian Electrical Codes Parts 1 & 2 CSA C22.11990 or LATEST EDITION.

IMPORTANT: Failure to comply with these codes or ordinances, and/or the requirements stipulated in this manual can result in personal injury or component failure.

NOTE: Component failure due to improper installation will void the warranty.

Each pocket should be connected to an independently protected branch circuit. The dryer must be connected with copper wire only. Do not use aluminum wire. The copper conductor wire/ cable must be of proper ampacity and insulation in accordance with electric codes for making all service connections.

NOTE: The use of aluminum wire will void the warranty. An individual ground circuit must be provided to each pocket, do

not daisy chain. Component failure due to improper voltage application will void

the warranty. The manufacturer reserves the right to make changes in

specications at any time without notice or obligation. IMPORTANT: A separate protected circuit must be provided to

each pocket. It is necessary to have a power disconnect for each pocket.

These disconnects must be located within 30' (9 m) of the dryer and also be identied as being one of two power sources supplying a dryer.

The dryer must be connected to the electric supply shown on the data label.

Electrical Service Specications

ELECTRICAL SERVICE SPECIFICATIONS (PER POCKET)

NOTES:

When fuses are used they must be dual

element, time delay, current limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse value, by applying either local and/or National Electrical Codes to listed appliance amp draw data.

Circuit breakers are thermal-magnetic

(industrial) motor curve type ONLY. For others, calculate/verify correct breaker size according to appliance amp draw rating and type of breaker used.

SERVICE VOLTAGE

PHASE WIRE

SERVICE

APPROX.

AMP

DRAW

CIRCUIT

BREAKER

MINIMUM

WIRE GAUGE

60 Hz

120 1ø 2 8.7 15 14

Grounding

A ground (earth) connection must be provided and installed in accordance with local, state, and national regulations or codes of the country of destination. In the absence of these codes, grounding must conform to applicable requirements of the National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the installation must conform to applicable Canada Standards: Canadian Electrical Codes Parts 1 & 2 CSA C22.11990 or LATEST EDITION. The ground connection may be to a proven earth ground at the location service panel.

Electrical Connections

A wiring diagram is located behind the control panel with connection data.

If local codes permit, power to the dryer can be made by the use of a exible UL listed power cord/pigtail (wire size must conform to rating of dryer), or the dryer can be hard wired directly to the service breaker panel. In both cases, a strain relief must be installed where the wiring enters the dryer.

Fire Hazard

Use appropriate gauge of copper wire (See chart in "Electrical Requirements" section).

Use a UL listed strain relief.

Disconnect power before making electrical connections.

Electrically ground appliance per installation instructions.

Securely tighten all connections.

Failure to do so can result in death, fire, or electrical shock.

Single-Phase Electrical Connection Leads

Black

Positive or L1

White

Neutral or L2

Green

Ground

Input connection wiring must be sized properly to handle the dryer’s current draw. This information is printed on the dryer’s data label.

Gas Information ________________

WARNING

Single-Phase (1ø) Wiring Connections / Hookup

The electrical input connections are made into the rear service box located at the top of the dryer. To gain access, the service box cover must be removed. (Refer to the specication drawing in “Specications” section of manual.)

120 Volt Application with Neutral

Remove 3 screws holding down electrical box plate at the top of the machine.

Remove 2 knockouts provided just in front of electrical box and insert 3/4" UL listed strain relief into the holes.

Insert the wiring from the two 120 V 15 A circuits (one for top tumbler and one for bottom tumbler) into the strain reliefs.

Determine the top pocket electrical connections by checking wire label, which will be marked “top”.

Connect wiring from 120 V 15 A circuit to top pocket wiring as described in the following illustration (black to black, white to white and green to chassis ground wire).

Connect wiring from 120 V 15 A circuit to remaining wires (bottom pocket) as described in the following illustration (black to black, white to white and green to chassis ground wire).

Tighten strain relief screws assuring to leave a 1/2" of slack in box.

Replace electrical box plate by inserting 3 screws previously removed.

Explosion Hazard

Use a new approved gas supply line.

Install a shut-off valve.

Securely tighten all gas connections.

If connected to propane, have a qualified person make sure gas pressure does not exceed 13" (330 mm) water column.

Examples of a qualified person include: licensed heating personnel,

authorized gas company personnel, and authorized service personnel.

Failure to do so can result in death, explosion, or fire.

Type of Gas

This dryer is equipped for use with natural gas. It is design certied by CSA International for Propane and butane gases with appropriate conversion (Propane kit 887299). No attempt shall be made to convert the dryer from the gas specied on the serial/rating plate for use with a different gas without consulting the serving gas supplier. Conversion must be done by a qualied service technician.

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-LATEST EDITION, or in Canada, the Canadian Installation Codes CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGAB149.2-M91 (Propane 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 dryer Btu being supplied.

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

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).

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).

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

NOTE: Undersized gas piping will result in ignition problems, slow drying, and increased use of energy.

The input ratings shown on the data label are for elevations up to 2,000' (610 m), unless elevation requirements of over 2,000' (610 m) were specied at the time the dryer order was placed with the factory. The adjustment or conversion of dryers in the eld for elevations over 2,000' (610 m) is made by changing each burner orice. If this conversion is necessary, contact the distributor who sold the dryer or contact the manufacturer.

IMPORTANT: If connection to this dryer is made with a exible 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 dryer does not recommend the use of exible gas supply line/hose.

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

In the U.S.A: An individual manual shutoff valve must be installed within 6' (1.8 m) of the dryer in accordance with the National Fuel Gas Code, ANSI Z223.1.

In Canada: An individual manual shutoff valve must be installed in accordance with the B149.1, Natural Gas and propane Installation Code. It is recommended that an individual manual shutoff valve be installed within 6' (1.8 m) of the dryer.

Gas Connections

Inlet connection .....1/2" M.N.P.T. (1 per pocket)

Inlet supply size ....1/2" Pipe (minimum) (1 per pocket)

Combined top and bottom require a 3/4" supply (minimum)

Piping / Connections

The dryer is provided with two 1/2" N.P.T. inlet pipe connection at the rear of the dryer. It is recommended that a gas shutoff valve be provided to the gas supply line of each pocket 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. Specic 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.

Natural Gas Specications**

Nominal

Heating

Value

Btu/ft

1,000 6.0-12.0 144,000 42.2 20 4.089 2 3.5

*Consult factory for elevations over 2,000' (609.6 m) for correct burner orice size(s).

** Btu rating for both tumblers.

Supply

Pressure

in WC Btu

Gross Heat

Input

kW DMS mm in WC

/hr

Orice

Size*

Orice (Injector) Quantity

Pressure

Burner

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