14
C
AUTION
:
Correct inlet pressure is vital to efficient operation of heaters. Refer to
the rating plate and, if necessary, consult Gas Company.
Warning
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.
Summary of Contents for Middleman EZM-100-50
Page 17: ...17 VENTING OPTIONS...
Page 19: ...19...
Page 20: ...20...
Page 25: ...25 Middleman single stage wiring diagram...
Page 26: ...26 Middleman LTH dual input wiring diagram...
Page 28: ...28...
