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Exhaust system requirements
If your present system is made up of plastic duct or metal foil
duct, replace it with a rigid or semi-rigid metal duct. Also,
ensure the present duct is free of any lint prior to installing
dryer duct.
Use only 4 inch (10.2 cm) diameter (minimum) rigid or fl exible
metal duct and approved vent hood which has a swing-out
damper(s) that open when the dryer is in operation. When
the dryer stops, the dampers automatically close to prevent
drafts and the entrance of insects and rodents. To avoid
restricting the outlet, maintain a minimum of 12 inches (30.5
cm) clearance between the vent hood and the ground or any
other obstruction.
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The following are specifi c requirements for
proper and safe operation of your dryer.
Gas supply requirements
1. Installation MUST conform with local codes, or in the
absence of local codes, with the National Fuel Gas Code,
ANSI Z223.1 (latest edition).
2. The gas supply line should be 1/2 inch (1.27 cm) pipe.
3. If codes allow, fl exible metal tubing may be used to
connect your dryer to the gas supply line. The tubing
MUST be constructed of stainless steel or plastic-coated
brass.
4. The gas supply line MUST have an individual shutoff valve.
5. A 1/8 inch (0.32 cm) N.P.T. plugged tapping, accessible
for test gauge connection, MUST be installed immediately
upstream of the gas supply connection to the dryer.
6. The dryer MUST be disconnected from the gas supply
piping system during any pressure testing of the gas
supply piping system at test pressures in excess of 1/2 psig
(3.45 kPa).
7. The dryer MUST be isolated from the gas supply piping
system during any pressure testing of the gas supply
piping system at test pressures equal to or less than 1/2
psig (3.45 kPa).
8. Connections for the gas supply must comply with the
Standard for Connectors for Gas Appliances, ANSI Z21.24.
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- EXPLOSION HAZARD - Uncoated copper
tubing will corrode when subjected to natural gas, causing
gas leaks. Use ONLY black iron, stainless steel, or plastic-coat-
ed brass piping for gas supply.
- FIRE HAZARD - Failure to follow these in-
structions can create excessive drying times and fi re hazards.
- FIRE HAZARD - Do not install a clothes
dryer with fl exible plastic or metal foil venting materials.
Flexible venting materials are known to collapse, be easily
crushed and trap lint. These conditions will obstruct clothes
dryer airfl ow and increase the risk of fi re.