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Initial Installation
GAS LINE CONNECTION AND TESTING:
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. This
exline is connected to a shut-off ball valve, which terminates in a ” female NPT tting. The ball
valve can be located on the right or left side of the unit, or where the gas supply can enter through
the oor of the unit (see Figure 10). Consult your local authorities codes or the CAN/CGA B 149 (1 or
2) installation code in Canada, or in the USA gas installations follow either local codes or the current
edition of the National Fuel Gas Code ANSI Z223.1.
• The efciency rating of this appliance is a product thermal efciency rating determined under
continuous operating conditions and was determined independently of any installed system.
The appliance and its shutoff valves must be disconnected from
the gas supply piping system during any pressure testing where
the pressure exceeds PSIG (3.45 KPa) or damage will occur
to the valve.
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 psig (3.45 KPa).
Always check for gas leaks with a soap and water
solution after completing the required pressure
test.
TO TEST VALVE PRESSURES
The pressure taps are located on the top right of the valve shown in Figure 45.
• Turn set screw 1 turn counter clockwise to loosen,
• Place
5
/16” (8 mm) I.D. hose over pressure tap system.
• Check pressures using a manometer.
• When nished, release pressure, remove hose & tighten set screw.
Natural Gas Propane
Main Orice #40 DMS #55 DMS
Manifold Pressure 3.8” W.C. (0.95 KPa) 11.0” W.C. (2.74 KPa)
Min. Manifold Pressure 1.2” W.C. (0.28 KPa) 2.7” W.C. (0.67 KPa)
Max Supply Pressure 7.0” W.C. (1.74 KPa) 13.0” W.C. (3.28 KPa)
Min. Supply Pressure 5.0” W.C. (1.25 KPa) 12.0” W.C. (2.98 KPa)
Max BTU/hr Input 29,280 BTU/hr (8.58 KW) 20,590 BTU/hr (6.03 KW)
Min. BTU/hr Input 16,000 BTU/hr (4.69 KW) 10,300 BTU/hr (3.02 KW)
NEVER USE AN OPEN FLAME FOR LEAK TESTING.
O
L
I
T
P
TPTH TP TH
IN OUT
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N
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F
O
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Figure 45. Fully Labeled Gas Valve.
Table 10: Pressure and BTU Information.
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