Carrier 50PG03-16 installation instructions 50PG03−16, Panel Locations

50PG03−16

6.Remove the block-off plate from electric heater compartment and save screws. (See Fig. 2.)

7.Slide heater module into heater compartment by aligning the heater frame with the heater opening. Do NOT handle heater assembly by the heating coils. Handle by sheet metal panel only. (See Fig. 3.)

NOTE: The 50PG16 heater bottom-rear flange will secure into a slot on the internal cross rail when fully installed. Check that the heater flange is straight and flat before installing.

8.Secure electric heater to unit using screws from item 6. Heater will attach to the block off plate screw holes.

9.Route heater power wires to the left through the foam bushing and to the single point power connection box in the compressor section. (See Fig. 3 and 4.)

10.Install the single point box, if required. Refer to the Install Single Point Box, Step 2, for details.

CONTROL BOX

AND COMPRESSOR

ACCESS DOOR

ELECTRICAL

OPTIONS PANEL

OUTDOOR AIR SCREEN (HIDDEN)

ECONOMIZER

HOOD

BAROMETRIC

RELIEF DAMPER

HOOD

BASEPAN CONNECTIONS

ACCESS PANEL

11.Route the control wires to the left through the foam bushing. Connect to the mating plug (PL−3) in the wire harness in the indoor fan section. Do not route 24 volt low voltage wiring beside high voltage wiring. Maintain at least a 1−2” separation.

12.Set the manual reset limit switch on the fan housing by pressing the button located between the terminals on the switch. (See Fig. 3.)

NOTE: This switch is added as a supplemental means to de−energize the electric heat contactor in case of indoor airflow failure. The switch should only open and require reset for a switch temperature above 200_F.

13.Apply heater wiring label to inside of electric heater section door. (See Fig. 5.)

14.Close all access doors.

15.Remove “Lock−Out Tag−Out” tag. Apply power to unit.

INDOOR MOTOR

ACCESS DOOR

CONDENSER COIL

ACCESS PANEL

ELECTRIC HEAT

ACCESS DOOR

FILTER ACCESS DOOR

C06182

Fig. 1 − Panel Locations

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