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3. Piping Connections
ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LATEST
EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane
[L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing), as well as local codes and
ordinances and must be done by a qualified professional. 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
BTUs being supplied.
The dryer is provided with a 1/2” N.P.T. inlet pipe connection located in the upper rear of the dryer. The
minimum pipe size (supply line) to the dryer is 1/2” N.P.T. For ease in servicing, the gas supply line of each
dryer must have its own shutoff valve.
IMPORTANT: THIS GAS DRYER IS NOT PROVIDED WITH AN INTERNAL GAS SUPPLY
SHUTOFF AND AN EXTERNAL GAS SUPPLY SHUTOFF MUST BE
PROVIDED.
IMPORTANT: The gas supply line to each dryer must be a minimum of 1/2-inch. DO NOT
REDUCE THIS PIPE SIZE REQUIREMENT.
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.