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 rigid pipe located on the right side of the unit terminating in a 3/8”
Female 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.
•
Where required by certain jurisdictions, this appliance may require an externally accessible gas shut off
valve i.e. Dante valve or the like.
Figure 72: 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 in 2 pleaces: on the top right of the valve shown in Figure 72 or in the
control panel area (see page 16). Either set may be used.
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.
•
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.
Natural Gas
Propane
Main Orifice
#23
#40
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
63,000 BTU/hr (18.4 KW)
63,000 BTU/hr (18.4 KW)
Min. BTU/hr Input
41,000 BTU/hr (12.0 KW)
49,000 BTU/hr (14.3 KW)
NEVER USE AN OPEN FLAME FOR LEAK TESTING.
Initial Installation
QUALIFIED INSTALLERS ONLY
