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Retro-Fit to Metal Chimney
STEP 3 - Gas Line Installation.
The Valve is located near the lower Right Rear
Corner of the appliance. See Figure 11. Install the
Gas Supply Line to the backside of the unit to ease
installation of the unit to the Supply Line, a flexible
connector and Manual Shut - Off Valve are supplied.
The Manual Shut - Off Valve should be installed onto
the Supply Line, ahead of the flex. All connections
must be checked for leaks with a soap and water
solution or Gas Sniffer.
STEP 4 - Gas Line Connection.
Connect the gas line to the heater manual valve inlet,
using 1/2" pipe. To ease installation, a listed flexible
connector and manual shut-off valve are supplied.
The manual shut-off valve should be connected
opposite the gas valve. Gas connections can be
made from the backside the heater. All connections
must be checked for leaks with a soap and water
solution.
Bleed the gas line to extract any air that may have
been trapped inside the pipe.
STEP 5 - Access to the Gas Valve.
Access to the valve and associated components can
be accomplished at the lower right rear corner of the
heater. See Figure 16.
12-99
Figure 14
R-CAST SERIES WALL FURNACE
Note: The appliance and its individual shutoff
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 psi
kPa). The appliance must be isolated from the gas
supply piping system by closing its individual
manual shutoff valve during any pressure testing
of the gas supply piping system at test pressures
equal to or less than 1/2 psi (3.5 kPa).
Figure 15 - Access to Controls From The Side
STEP 6 - Wiring
Note: This heater must be electrically
wired and grounded in accordance with
local codes or, in the absence of local
codes, with National Electric Code
ANSI/NFPA 70-latest edition. This heater
can be used with a thermostat.
Note: This heater DOES NOT require a
110VAC supply for operation.
1 . Optional Accessories Requirements. Optional acces-
sories may be added now or at a later date. The optional fan
kit (HBK95) requires a 110VAC supply.
1a. Optional Wall Thermostat. The use of a millivolt ther-
mostat is allowed. It must be located within 20 feet. In
order for the thermostat to work, the "ON/OFF" switch
must be in the "ON" position.
Figure 16 shows how to connect a millivolt thermostat with-
out the on/off switch in the circuit. Disconnect the on/off
switch from the valve and wire the millivolt thermostat as
indicated.
Electrical Grounding Instructions
This appliance is equipped with a three-prong
(grounding) plug for your protection against shock
hazard and should be plugged directly into a prop-
erly grounded three-prong receptacle. Do not cut
or remove the grounding prong from this plug.
16
WARNING!
30750B
(3.5
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