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INSTALLATION INSTRUCTIONS
A 4" (100 mm) dia. aluminum flex pipe or equivalent may be installed from the outside (with a proper exterior cover)
to the Zero Clearance cabinet. There are outside air knock-out holes provided on three sides of the kit. Use only the
one that is most suitable for your installation. This will provide adequate outside combustion air supply to the heater.
GAS SUPPLY LINE
An authorised service person should install the gas line in accordance with all local building codes. If codes permit,
flex gas line or coiled copper tubing may be used as gas supply line. The suggested way to install the gas supply line
is as follows: run 1/2" (9.5 mm) NPT gas line to the left side of the framed opening.
Specifications
U41
I41
Natural Gas
LPG
Natural Gas
LPG
Min. Inlet Gas Pressure
5.0" w.c.
11.0" w.c.
1.25 kPa
2.75 kPa
BTU Input Rating
38,000 BTU/hr
38,000 BTU/hr
42,000 BTU/hr
38,000 BTU/hr
WIRING
Install an electrical outlet box in the lower left rear corner, no higher than 4-1/2" (114 mm) above the bottom and
connect 120 VAC (240V in Australia & New Zealand) to the receptacle. The heater fan power cord will be plugged
into this outlet box, or into any receptacle near the appliance.
FINISHED FACING NOTES
Install finished facing surface of 1/2"(13mm) thickness on framing. Drywall 1/2" (13 mm) thick can extend flush with
the appliance on all three sides of the front face. The height at which the mantel must be installed above the top
louver depends on the depth of the mantel. If the mantel is to be painted, use a heat resistant paint to prevent
discolouration.
Faceplate and trim installation instructions are in the U41/I41 Insert manual. NOTE: the top faceplate assembly has
insulation installed for safety reasons and must not be removed.