This appliance has been tested in accordance with National Safety Standards and has been certifi ed
by LabTest for installation and operation as described in this manual.
Please read all the instructions before beginning your installation. Check with your local building
code agency to ensure compliance with local codes. In the absence of local codes the installation
must comply with National Fuel Gas Code ANSI Z22.3.1. In Canada, current CAN/CGA-B149.1 and
B149.2 installation codes.
Installation and repair should be done by a qualifi ed service person. The appliance should be
inspected before use and at least annually by a qualifi ed service person. More frequent clean-
ing may be required due to excessive lint from carpeting, bedding material, etc. It is imperative
that control compartments, burners and circulating air passageways of the appliance must kept
clean.
Unpack all parts from cartons carefully inspecting all parts. If any parts are damaged or miss-
ing, contact shipper or dealer immediately.
Do not install this appliance using damaged parts.
GAS SUPPLY
For use with natural gas or propane gas, depending on which option you have ordered. The minimum
inlet gas supply pressure for the purpose of input adjustment:
Natural
= Minimum 5" Water Column
Propane = Minimum 10" Water Column
a. The supply system should include a manual shut-off valve and union in the line, so that the
heater can be disconnected for servicing.
b. The appliance and its individual shut-off valve must be disconnected from the gas supply pip-
ing system during any pressure testing of that system at test pressures in excess of 1/2 psig
(3.5 kPa).
c. The appliance 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 pres-
sures equal to or less than 1/2 psig (3.5 kPa).
d. A 1/8 inch N.P.T. plugged tapping is provided, for test gauge connection, on the elbow adjacent
to the gas control valve.
Due to high temperatures, the appliance should be located out of traffi c and away from furniture
and draperies.
All manuals and user guides at all-guides.com
GENERAL INFORMATION
Maximum 10.5" Water Column
Maximum 13" Water Column
GF2/GF3 Page - 2
GF2/3 5/1/15