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AUTOMATIC PILOTADJUSTMENT(48 Series Units Only)
1. Set system selector switch at OFF position to shut off unit.
Turn off power to unit.
2. Remove screw cap cover on pilot gas valve to expose
adjusting screw.
3. To ensure that main burners do not ignite, remove wire
from gas valve terminal 2. Tape wire. Do not allow wire
to be grounded.
4. Turn on power to unit. Set system selector switch to HEAT
position and set thermostat to a setting that will call for
heat. Pilot ignites.
5. With a small screwdriver, turn adjustment screw untilflame
fully engulfs sensor.
6. Replace cap on pilot gas valve. Turn off power to unit.
Return valve(s) to original position.
7. Check for proper burner operation by cycling the burn-
ers. Wait 30 seconds between burner cycles.
8. Check that all panels are closed securely before leaving
the unit.
Fig. 55 — Charging Chart, 054 Units; System 2,
All Condenser Fans Running
Fig. 56 — Charging Chart, 064 Units; System 1,
All Condenser Fans Running
Fig. 57 — Charging Chart, 064 Units; System 2,
All Condenser Fans Running
Fig. 58 — Charging Chart, 074 Units; System 1,
All Condenser Fans Running
Fig. 59 — Charging Chart, 074 Units; System 2,
All Condenser Fans Running
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