Schwank STR-CANADA - Manual (Page 19)

SP-MSTR-AC-11A
STR Manual
RD: NOV, 2003
RL: 11
KH
11. GAS SUPPLY INSTALLATION
It is recommended that the approved flexible connector supplied by Schwank be installed be-
tween the heater and gas piping.
If rigid connection is made, compensation for normal gas-
supply piping expansion and radiant tube expansion must be
provided. All piping must conform to local codes.
During any pressure testing of the gas- supply
piping system. The heater must be isolated
from the gas-supply piping system by closing
its individual manual shutoff valve, supplied
by installer.
DO NOT use pressures greater than 1/2 psig.
to pressure-check the heater.
TEST FOR LEAKS: All gas piping and
connections must be tested for leaks after the
installation is completed, by applying soap
suds solution to all connections and joints. If
bubbles appear, leaks have been detected and
must be fixed.
DO NOT USE A MATCH OR OPEN FLAME
OF ANY KIND TO TEST FOR LEAKS.
NEVER OPERATE THE HEATER WITH
ANY LEAKING CONNECTIONS.
The supply system should be checked first
with heater turned "OFF" followed by an-
other check with heater turned "ON".
IMPORTANT:
The minimum supply-line pressure at the
inlet to the heater regulator must not, in
any instance, be lower than 5.0 inches of
water column pressure, for natural gas ,
and 11.0 inches of water column pressure
for propane gas. The supply-line pres-
sure must be checked with all heaters
and appliances operating in the building.
A sealed regulator is supplied with the
heater to maintain the proper manifold
pressure when the main burner is
operating.
Page 15
CAUTION:
TOP VIEW
FLUE VENT
FLANGED TUBE
Air Intake Vent