Installation Guide
14
Gas Supply Pressure Testing
A 1/8" (3 mm) NPT minimum plugged tapping, accessible for
gauge testing, must be installed immediately downstream of the
installed shut-off valve to the dryer (as shown above). The dryer
must be disconnected from the gas supply piping system during
any pressure testing of the system at test pressures in excess of
1/2" psig (352 kg/m
2
). The expected pressures for the gas supply
are listed in inches of water in the table below:
Natural Gas Propane Gas
Minimum
5.2" (132.1 mm) 8.0" (203.2 mm)
Maximum
10.5" (266.7 mm) 13.0" (330.2 mm)
Alternate method
■ The gas supply may also be connected using 3/8" approved
copper or aluminum tubing. If the total length of the supply
line is more than 20 ft. (6.1 m), larger tubing will be required.
If using natural gas, do not use copper tubing. Pipe joint
compounds that resist the action of Propane gas must be
used.
Flexible metal appliance connector:
■ It is recommended that a new exible stainless steel gas line,
design-certied by CSA International, be used for connecting
the dryer to the gas supply line. (The gas pipe, which extends
through the lower rear of the dryer, is provided with 3/8"male
pipe thread.)
■ Do not kink or damage the exible stainless steel gas line
when moving the dryer.
Rigid pipe connection:
The rigid pipe connection requires a combination of pipe ttings
to obtain an in-line connection to the dryer.
Make Gas Connection
1. Remove red cap from gas pipe.
2. Connect gas supply to dryer. Use pipe-joint compound
resistant to the action of propane for gas connections.
If exible metal tubing is used, be certain there are no kinks.
If necessary for service, open the toe panel by removing the
2
1
⁄4" hex-head screws from the bottom of the panel. Then lift
up on the panel while pulling the bottom of the panel away
from the dryer.
3. Open the shutoff valve in the gas supply line.
4. Test all connections by brushing on an approved
noncorrosive leak-detection solution. Bubbles will show
a leak. Correct any leak found.
Gas Supply Line
Recommended method
■ Provide a gas supply line of 1/2" rigid (IPS) pipe to the dryer
location. Pipe joint compounds that resist the action of
Propane gas must be used. Do not use TEFLON
®†
tape. With
Propane gas, piping or tubing size can be 1/2" minimum.
Usually, Propane gas suppliers determine the size and
materials used in the system.
WARNING
Explosion Hazard
Use a new CSA International 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" (33 cm) 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.
INSTALLATION INSTRUCTIONS – GAS DRYER
†®TEFLON is a registered trademark of Chemours.