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LGA/LGC156, 180, 210, 240 and 300S Parts Arrangement

COMBUSTION AIR

INDUCER

EVAPORATOR

COIL

BLOWER MOTOR

CONDENSER FANS

CONDENSER

COILS

COMPRESSORS

(3 COMPRESSORS ON

LGA/LGC156 & 180 UNITS)

BURNERS

GAS VALVE

HEAT EXCHANGER TUBES

BLOWERS

CONDENSATE

DRAIN

FILTERS

ECONOMIZER DAMPERS

(OPTIONAL)

CONTROL BOX

120V GFCI OUTLET

(Factory−installed option)

DISCONNECT

(Factory−installed

option)

LGA/LGC248, 300H and 360 Parts Arrangement

COMBUSTION AIR

INDUCER

EVAPORATOR

COIL

CONDENSER FANS

CONDENSER

COILS

COMPRESSORS

(−248 AND −300H HAVE

4 COMPRESSORS)

BURNERS

GAS VALVE

HEAT EXCHANGER

TUBES

CONDENSATE

DRAIN

FILTERS

ECONOMIZER DAMPERS

(OPTIONAL)

BLOWERS

BLOWER

MOTOR

Summary of Contents for LGA042

Page 1: ...ice must be per formed by a qualified installer ser vice agency or the gas supplier D Do not try to light any appliance D Do not touch any electrical switch do not use any phone in your building D Imm...

Page 2: ...S DISCONNECT OPTIONAL ECONOMIZER OPTIONAL 120V GFCI OUTLET OPTIONAL LGA LGC090 102 120 and 150 Parts Arrangement COMBUSTION AIR INDUCER 120V GFCI OUTLET Factory installed option BLOWER MOTOR CONDENSER...

Page 3: ...UBES BLOWERS CONDENSATE DRAIN FILTERS ECONOMIZER DAMPERS OPTIONAL CONTROL BOX 120V GFCI OUTLET Factory installed option DISCONNECT Factory installed option LGA LGC248 300H and 360 Parts Arrangement CO...

Page 4: ...errors can cause improper and dangerous operation Verify proper operation after servicing WARNING Danger of electrical shock explosion and fire Improper servicing could result in dangerous operation...

Page 5: ...HONEYWELL VR8205Q VR8305Q SERIES GAS VALVE Gas valve knob is shown in OFF position FIGURE 4 LOW FIRE ADJUSTMENT HIGH FIRE ADJUSTMENT INLET PRESSURE TAP MANIFOLD PRESSURE TAP 6 Wait five 5 minutes to c...

Page 6: ...n using the inspection port provided on the burner access panel Flue Passage and Vent Inspection Annually before heating season inspect the combustion air louvers vent cap heat exchanger burners and c...

Page 7: ...bearings so that a bead of grease appears at the seal lip contacts Manifold Pressures Manifold pressures are shown in table 2 Refer to figures 2 3 and 4 to locate pressure ports TABLE 2 MANIFOLD PRESS...

Page 8: ...and combustion air inducer gasket should also be replaced during reassembly Service Reminder Call a qualified service technician if the unit is inoperative Before calling always check the following t...

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