American Dryer Corp T75, T30 manual T20 T50, Piping/Connections

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Piping/Connections

T20

T 30

T50

T 75

 

 

 

 

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-operated appliances 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. An in-line pressure 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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Telephone 01422 822282

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Contents JLA Limited T20 / T30 / T50 / T75 Installation/Operator ManualRetain This Manual in a Safe Place for Future Reference Table of Contents What To Do If You Smell Gas Safety PrecautionsCE only 33.02 cm T20 SpecificationsT20 Specifications 37.78 cm T30 SpecificationsT30 Specifications 40.64 cm T50 SpecificationsT50 Specifications T75 Specifications T75 Specifications Dryer Enclosure Requirements Installation ProceduresUnpacking/Setting Up Location RequirementsDomestic Type I T20, T30, T50 Only Fresh Air Supply RequirementsExhaust Requirements Vertical Venting Outside Ductwork ProtectionSingle Dryer Venting Horizontal VentingElectrical Requirements Electrical InformationT50 Electrical Service Specifications Gas Models OnlyT20 T30Electrical Connections Single-Phase 1ø Wiring Connections/HookupElectric Models Only GroundingElectrically Heated Models Only Two Element Configuration Three Element ConfigurationCE Dryers Gas InformationDMS Piping/Connections T20 T50Converting from One Family Gas to Another Conversion from Propane or Butane Gas to Natural Gas Gas Pressure AdjustmentRegulated Gas Valve Steam Coil pH Level Gas Pressure TestingGas Pressure Test Procedure Steam InformationWater Information Preoperational Test Preparation for Operation/Start-UpCoin Models Service/Parts InformationWarranty Information Preoperational InstructionsRoutine Maintenance Standard Label CE Label Data Label Information07/15/08