Gas Supply Connection Requirements; Burner Input Requirements - Whirlpool WGD4870BW Installation Instructions Manual

Gas supply line
½" NPT pipe is recommended.
■
⁄
3
" approved tubing is acceptable for lengths under
■
8
20 ft. (6.1 m) if local codes and gas supplier permit.
Must include 1 ⁄ " NPT minimum plugged tapping accessible
■
8
for test gauge connection, immediately upstream of the gas
connection to the dryer (see illustration).
Must include a shut-off valve:
■
In the U.S.A.:
An individual manual shut-off valve must be installed within
six (6) feet (1.8 m) of the dryer in accordance with the
National Fuel Gas Code, ANSI Z223.1.
In Canada:
An individual manual shut-off valve must be installed in
accordance with the B149.1, Natural Gas and Propane
Installation Code. It is recommended that an individual
manual shut-off valve be installed within six (6) feet (1.8 m)
of the dryer.
The shut-off valve location should be easy to reach for opening
and closing.
C
A
B
⁄
3
"
A. flexible gas connector
8
⁄
3
"
B. pipe to flare adapter fitting
8
1 ⁄ "
C. NPT minimum plugged tapping
8
D. ½" NPT gas supply line
E. Gas shut-off valve

Gas supply connection requirements

There are many methods by which your gas dryer can be
connected to the gas supply. Listed here are some guidelines
for two different methods of connection.
This dryer must be connected to the gas supply line with
a listed flexible gas connector that complies with the standard
for connectors for gas appliances, ANSI Z21.24 or CSA 6.10.
Option 1 (Recommended Method)
Flexible stainless steel gas connector:
If local codes permit, use a new flexible stainless steel gas
■
connector (Design Certified by the American Gas Association
or CSA International) to connect your dryer to the rigid gas
supply line. Use an elbow and a
fitting between the stainless steel gas connector and the
dryer gas pipe as needed to prevent kinking.
Option 2 (Alternate Method)
Approved aluminum or copper tubing:
Lengths over 20 ft. (6.1 m) can use
■
(if codes and gas supplier permit).
If you are using Natural Gas, do not use copper tubing.
■
⁄ ⁄
3 " flare x 3 " NPT adapter fitting between dryer pipe
■
8 8
⁄
and 3 " approved tubing.
8
Lengths over 20 ft. (6.1 m) should use larger tubing and
■
a different size adapter fitting.
†®TEFLON is a registered trademark of E.I. Du Pont De Nemours and Company.
8
E
D
⁄ ⁄
3 flare x 3 NPT adapter
" "
8 8
⁄
3 approved tubing
"
8
If your dryer has been converted to use LP gas,
■
compatible copper tubing can be used. If the total length
of the supply line is more than 20 ft. (6.1 m), use larger pipe.
NOTE: Pipe joint compounds that resist the action of LP
gas must be used. Do not use TEFLON
Dryer gas pipe
The gas pipe that comes out through the rear of your dryer
■
⁄
has a 3 male pipe thread.
"
8
29" Wide Model
A
⁄
3
"
A. NPT dryer pipe
8
27" Wide Model
3 "
*5 /
4
(146 mm)
⁄
3 "
A. NPT dryer pipe
A. 3/8" NPT dryer pipe
8

Burner input requirements

Elevations up to 10,000 ft. (3,048 m):
The design of this dryer is certified by CSA International for
■
use at altitudes up to 10,000 ft. (3,048 m) above sea level at
the B.T.U. rating indicated on the model/serial number plate.
Burner input adjustments are not required when the dryer is
operated up to this elevation.
Elevations above 10,000 ft. (3,048 m):
When installed above 10,000 ft. (3,048 m), a 4% reduction
■
of the burner B.T.U. rating shown on the model/serial
number plate is required for each 1,000 ft. (305 m)
increase in elevation.
Gas supply pressure testing
The dryer must be disconnected from the gas supply piping
■
system during pressure testing at pressures greater than
½ psi.
⁄
3 " LP
8
tape.
®†
1¼"
(32 mm)
9¼"
(235 mm)
A
1 "
1 /
2
(38 mm)