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Never use a match or other flame to test for gas leaks. Use soap and water solution
to check for leaks to all connections and joints and if bubbles appear, leaks have
been detected and must be corrected. Never operate the heater with leaking
connections. The supply system should be checked first with heater turned off
followed by another check with the heater on. The supply gas pressure must be
checked with all heaters in operation.
GAS SUPPLY, HEATER EXPANSION, AND FLEXIBLE GAS CONNECTION
The gas supply must be installed to the heater using:
In USA an approved Stainless Steel Flexible Gas Connector certified for use on an
infrared radiant tube heater (ANSI Z21.24 CSA 6.10)
In Canada an approved Type 1 Hose Gas Connector (CAN/CGA 8.1)
The heater must be isolated from the gas supply piping system by closing its
individual manual shut off valve (field supplied) during any pressure testing of the
gas supply piping system.
Compensation for normal gas supply pipe expansion, and radiant tube heater
expansion must be provided. All piping must conform to local codes.
Provide a 1/8 in (3.2mm) NPT plugged tapping, accessible for test gauge
connection, immediately upstream of the gas supply connection to the heater.
Test for leaks. All gas piping and connections must be tested for leaks after the
installation is completed.
Apply soapsuds solution to all connections and joints and if bubbles appear,
leaks have been detected and must be corrected. Do not use a match or open flame
of any kind to test for leaks. Never operate the heater with leaking connections.
The supply systems should be checked first with the heater turned off followed by
another check with the heater turned on. The supply gas pressure must be checked
with all heaters in operation.
A drip leg must be installed in the gas line at the heater inlet connection tee
followed by a pipe drop to the heater. Failure to provide a drip leg could result in
condensation and foreign matter passing into the gas valve. Failure to install a drip
leg in the gas line can cause property damage, injury or death and will void the
heater warranty.
WARNING
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