Goodman GPG 16 M Series, Руководство по установке

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13
Fan Only
1. Thermostat calls for FAN ONLY by energizing “G”.
2. The indoor blower is immediately energized at the low
heat speed.
3. The indoor blower is immediately de-energized once
thermostat call for FAN is removed.
STARTUP, ADJUSTMENTS, AND CHECKS
Heating Startup
This unit is equipped with an electronic ignition device to
automatically light the main burners. It also has a power
vent blower to exhaust combustion products. On new instal-
lations, or if a major component has been replaced, the op-
eration of the unit must be checked.
Check unit operation as outlined in the following instructions.
If any sparking, odors, or unusual sounds are encountered,
shut off electrical power and check for wiring errors, or ob -
structions in or near the blower motors. Duct covers must be
removed before operating unit.
Rollout Protection Control
The rollout protection device opens, cutting power to the gas
valve, if the flames from the burners are not properly drawn
into the heat exchanger. The rollout protection device is lo-
cated on the burner bracket. The reason for elevated tem-
peratures at the control must be determined and repaired
prior to resetting this manual reset control.
Rollout Protection
Rollout Protection on Burner Bracket
Secondary Limit Control
The secondary limit control is located on the top of the blower
scroll assembly. This control opens when elevated tempera-
tures are sensed. Elevated temperatures at the control are
normally caused by blower failure. The reason for the opening
should be determined and repaired prior to resetting.
If the power to the unit is interrupted during the heating cycle,
it may cause the secondary limit to trip. Once the blower com-
partment temperature drops below the limit reset tempera-
ture, the limit will automatically reset.
Secondary
Control Limit
Back of Unit
Pre-Operation Checks
1. Close the manual gas valve external to the unit.
2. Turn off the electrical power supply to the unit.
3. Set the room thermostat to its lowest possible setting.
4. Remove the heat exchanger door on the side of the
unit by removing screws.
5. This unit is equipped with an ignition device which au-
tomatically lights the main burner. DO NOT try to light
burner by any other method.
6. Move the gas control valve switch to the OFF position.
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.