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Do not locate either the gas or electrical supply line directly over the flue outlet of
the heater. Electrical supply line shortage and / or control overheating may occur. The
heater must be installed in a location such that it is accessible for servicing and have no
restriction of air flow to the air inlet of the heaters casing.
A 24 VAC, 40
VA transformer has been included with the product. The on-off control
of the heater should be controlled from 120 VAC side of the transformer. A UL approved
outdoor wall switch must be used for this purpose.
Mounting
Each heater must be installed such that the following “minimum clearance to com-
bustibles must be maintained. Combustible materials such as wood, paper, foliage, plastic,
plexiglass or other materials capable of being ignited and burned. Such materials shall be
considered combustible even through flame-proofed, fire retardant treated or plastered.
Additional clearances may be required for glass, painted surfaces and other materials
which may be damaged by radiant or convection heat.
Electrical
(
A 24 volt NEC class 2 transformer has been included to the heater). A step down
transformer approved as having at least a 40 VA rating must be utilized for each connected
heater. Control wires used to electrically connect one or more heaters together must have
both adequate capacity and insulation temperature ratings for the total connected load. Use
at least 18 ga. wire up to 50 ft. from heater to transformer or wall switch. Use 16 ga. over
50 ft. distance. If the original wires supplied should need replacement. It must be
replaced with wiring material having a temperature rating of at least 105 degrees
Centigrade.
Gas Piping
A minimum pipe size of 1/2” is required for inlet pip-
ing. A 1/2
” lever handled shut-off gas cock should be installed
within 6 feet of the appliance for servicing the unit. Check
with local and state plumbing and heating codes regarding
sizing of the gas lines. Installation of a drip leg in the gas
supply line going to each heater is required to minimize the
possibility of any loose scale or dirt within the gas supply line
from entering the heater
’s control system.
Locating Heater
9
1/2" Conduit
Drip Leg