Daikin GPGM5 Installation Instructions Manual page 15

15.2 seer2 “m” series 2-4 ton single package gas-electric heating & cooling units
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Do not force.
7. Wait five minutes to clear out any gas.
8. Smell for gas, including near the ground. This is im-
portant because some types of gas are heavier than
air. If you have waited five minutes and you do smell
gas, immediately follow the warnings on page 3 of this
manual. If having waited for five minutes and no gas
smell is noted, move the gas control valve switch to
the ON position.
9. Replace the heat exchanger door on the side of the
unit.
10. Open the manual gas valve external to the unit.
11. Turn on the electrical power supply to the unit.
12. Set the thermostat to desired setting.
Gas Supply And Manifold Check
Gas supply pressure and manifold pressure with the burners
operating must be as specified on the rating plate.
White-Rodgers Model 36G54 (Two Stage)
Gas Inlet Pressure Check
Gas inlet pressure must be checked and adjusted in accor-
dance to the type of fuel being consumed.
Outlet
Pressure Boss
Open to
Atmosphere
Inlet
Pressure
Boss
10.0
Mode
White-Rodgers Model 36G54 Connected to Manometer
White-Rodgers Model 36G54 connected to Manometer
With Power And Gas Off:
NOTE: Use adapter kit #0151K00000S to measure
gas pressure on White-Rodgers 36G54 gas valves.
1. Back inlet pressure test screw (inlet pressure boss) out
one turn (counterclockwise, not more than one turn).
Alternately, inlet gas pressure may be measured by
removing the cap from the drip leg and installing a pre-
drilled cap with a hose barb fitting.
High Fire Regulator
Adjust
Regulator
Vent
Low Fire
Regulator
Adjust
Common
Terminal(C)
15
2. Connect a water manometer or adequate gauge to the
inlet pressure tap of the gas valve (or hose barb fitting
on predrilled cap).
With Power And Gas On:
3. Put unit into heating cycle and turn on all other gas
consuming appliances.
INLET GAS PRESSURE
Natural
Min. 5.0" W.C., Max. 10.0" W.C.
Propane
Min. 11.0" W.C., Max. 13.0" W.C.
Inlet Gas Pressure Must be within the Minimum and Maximum Value
Shown in Table Above.
NOTE: Inlet Gas Pressure must be within the min-
imum and not exceed the maximum value shown.
If operating pressures differ from above, make neces sary
pressure regulator adjustments, check piping size, etc.,
and/or consult with local utility.
4. Turn off all electrical power and gas supply to the
system.
5. Remove manometer hose from the outlet pressure
boss (or remove hose from hose barb).
6. Turn inlet pressure test screw in to seal pressure port
(clockwise, 7 in-lb minimum). Alternately, remove pre-
drilled cap from drip leg. Reinstall original cap, sealing
with pipe thread compound.
7. Turn on electrical power and gas supply to the
system.
8. Turn on system power and energize valve.
9. Using a leak detection solution or soap suds, check
for leaks at the pressure boss screw (or drip leg cap).
Bubbles forming indicate a leak. SHUT OFF GAS
AND FIX ALL LEAKS IMMEDIATELY.
Measuring Inlet Gas Pressure Alternate Method
10.0
Mode

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