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CONVERTING FURNACE TO PROPANE
WARNING:
This furnace was equipped at the factory for use with NATURAL GAS. Propane conversion, if required, must
be performed by a qualified service technician experienced in performing this type of conversion. If conversion to Propane
is required, all instructions included with the factory authorized conversion kit must be followed.
GAS SUPPLY AND PIPING
Check rating plate to make certain unit is equipped to burn the type of gas supplied. Care should be taken after installation
of this equipment that gas control valve not be subjected to high gas supply line pressure.
THE FURNACE AND ITS INDIVIDUAL SHUT OFF VALVE MUST BE DISCONNECTED FROM THE GAS SUPPLY PIPING
SYSTEM DURING ANY PRESSURE TESTING OF THAT SYSTEM AT TEST PRESSURES IN EXCESS OF 1/2 PSIG
(3.48 KPA). THE FURNACE MUST BE ISOLATED FROM THE GAS SUPPLY PIPING SYSTEM BY CLOSING ITS
INDIVIDUAL MANUAL SHUT OFF VALVE DURING ANY PRESSURE TESTING OF THE GAS SUPPLY PIPING SYSTEM
AT TEST PRESSURE EQUAL TO OR LESS THAN 1/2 PSIG (3.48 KPA).
In making gas connections, avoid strains as they may cause noise and may damage controls.
IT IS IMPORTANT TO USE A BACK-UP WRENCH WHEN MAKING GAS CONNECTIONS.
IGNORING THIS PRACTICE MAY RESULT IN A FIRE HAZARD CAUSING PROPERTY DAMAGE OR DEATH.
To check for leaks in piping use a soap and water solution or other approved method. DO NOT USE AN OPEN FLAME.
CONNECT GAS SERVICE from meter to control assembly. See previous drawing for typical hook-up. A GROUND-JOINT
UNION MUST BE INSTALLED, EXTERIOR TO THE FURNACE CABINET, SO THE CONTROL ASSEMBLY MAY BE EASILY
REMOVED. A 1/8" NPT plug on the supply pipe at the valve for the purpose of making measurements of the inlet gas pressure
must also be installed. A manual shut-off valve must be installed in the gas line outside of the furnace casing. The valve
should be readily accessible for turning on or off. A capped drip leg must be installed in the gas supply line as close to the
furnace as possible. A PIPE COMPOUND RESISTANT TO THE ACTION OF LIQUEFIED PETROLEUM GASES MUST BE
USED AT ALL THREADED PIPE CONNECTIONS.
Gas piping should be installed in accordance with local codes and regulations of the utility company. Consult local gas
company for location of manual main valve. The gas line should be of adequate size to prevent undue pressure drop and
never smaller than the pipe size to the combination gas valve. It is recommended that the size of pipe selected be in
accordance with “GAS PIPE CAPACITY TABLE” for the length of pipe required and connected to the furnace as illustrated.
1/2" UNION MUST BE INSTALLED
OUTSIDE OF UNIT
1/8" NPT TAP
(GAS TEST)
TO GAS
SUPPLY
NOTE: ALL THREADS MUST BE COATED WITH A
PIPE COMPOUND RESISTANT TO THE ACTION OF
LIQUEFIED PETROLEUM GAS.
MANUAL VALVE
4" ABOVE FLOOR
1/8" NPT TAP (GAS TEST)
CAPPED DRIP LEG.
CHECK LOCAL CODES FOR
LENGTH REQUIRED
Содержание GMN SERIES
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