Owner`s manual
GAS LINE CONNECTION:
Warning: Only persons licensed to work with gas piping may make the necessary gas connections to this
appliance.
Gas Line Connection:
• This replace is equipped with a certied exible pipe located on the right side of the unit, terminating in a
3/8in male NPT tting. Consult the local authorities for local codes or use the CAN/CGA B149 (1 or 2) installation
code in Canada. In the US, gas installations follow either local codes or the current edition of the National Fuel Gas
Code ANSI Z223.1.
• The efciency of this unit is a product thermal efciency rating determined under continuous operating
conditions and was determined
independently of any installed system.
The appliance and its’ shut-off valves
must be disconnected from the gas
supply piping system during any
pressure testing where the pressure
exceeds 1/2 psig (3.45kPa) or the
valve will be damaged.
The unit 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 pressures equal to or
less than 1/2psig (3.45 kPa)
Always check for gas leaks with
a soap and water solution after
completing the required pressure
test.
TO TEST VALVE PRESSURES: Main Burner Natural Gas
(in wc/kPa)
Propane Gas
(in wc/kPa)
The pressure taps are located on the top
right of the valve. Figure 27. Orice: #34 DMS #51 DMS
• Turn set screw 1 turn counterclockwise to loosen. Manifold Press: 3.8 / 0.95 11.0 / 2.74
• Place 5/16in (8mm) I.D. hose over the pressure Min. Manifold Press: 1.1 / 0.27 2.7 / 0.67
taps. Max. Supply Press: 7.0 / 1.74 13.0 / 3.28
• Check pressures using a manometer. Min. Supply Press: 5.0 / 1.24 12.0 / 2.98
• When nished, release pressure, remove hose Max. BTU Input: 38,000/11.34kWh 34,500/10.11kWh
and tighten set screw. Min. BTU Input: 20,000/ 5.86kWh 18,000/ 5.28kWh
NEVER USE AN OPEN FLAME FOR LEAK TESTING
Figure 27. Gas Control Assembly
22
Initial Installation
QUALIFIED INSTALLERS ONLY
Table 2. Gas Rating