49
Pilot Adjustment
Screw
Manifold
Pressure Tap
Inlet
Pressure Tap
Stepper
Regulator
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as
L
ine
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onnection
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esting
:
WARNING: Only persons licensed to work with gas piping may make the necessary gas connections to this
appliance.
GAS LINE CONNECTION
•
This appliance is equipped with a certified flexible pipe located on the right side of the unit terminating
in a 3/8” Male NPT fitting. 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 efficiency rating of this appliance is a product thermal efficiency rating determined under continuous
operating conditions and was determined independently of any installed system.
Figure 75: Fully Labeled Gas Valve.
Table 10: Pressure and BTU Information.
The appliance and its shutoff valves must be
disconnected from the gas supply piping system
during any pressure testing where the pressure
exceeds ½ 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 ½ 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 75.
Natural Gas
Propane
Main Orifice
#29
#44
Manifold Pressure
3.5” W.C. (0.87 KPa)
10.0” W.C. (2.49 KPa)
Min. Manifold Pressure
1.6” W.C. (0.39 KPa)
6.4” W.C. (1.59 KPa)
Max Supply Pressure
7.0” W.C. (1.74 KPa)
11.0” W.C. (2.74 KPa)
Min. Supply Pressure
4.5” W.C. (1.12 KPa)
10.4” W.C. (2.59 KPa)
Max BTU/hr Input
47,000 BTU/hr (18.4 KW)
47,000 BTU/hr (18.4 KW)
Min. BTU/hr Input
32,000 BTU/hr (12.0 KW)
39,000 BTU/hr (14.3 KW)
NEVER USE AN OPEN FLAME FOR LEAK TESTING.
Initial Installation
QUALIFIED INSTALLERS ONLY
•
Turn set screw 1 turn counter clockwise to loose.
•
Place
5
/
16
” (8 mm) I.D. hose over pressure tap system.
•
Check pressures using a manometer.
•
When finished, release pressure, remove hose & tighten set screw.
Important Note: When using the control panel pressure ports there is an approx. +0.2 W.C.
Inlet & -0.2 W.C. manifold measured pressure difference from the valve. Be sure to strongly
re-tighten the pressure port screws after testing and leak test with soapy water confirm
they are fully closed.
