Carrier 50PG03-16 Specifications download pdf (Page 4)

5. Locate holes on the economizer frame. Mount the differ-

ential enthalpy control as shown in Fig. 7 using the No. 8

screws provided.

6. Connect the wires from the Differential Enthalpy Control

to the Enthalpy Switch. The black wire should connect to

the “–” terminal and the red wire to the “+” terminal on

the Enthalpy Switch. See Fig. 2 and 6.

7. Replace the damper motor access panel using the screws

saved from Step 1.

8. Restore power to the unit and configure unit for use with

the accessory. See Configuring the Control System

sectiononpage5.

IMPORTANT: Be sure all seal strips and RTV sealant

are intact. A watertight seal to inside of unit must be

maintained.

BLK

RED

PINK

BROWN

RED

UNIT

HARNESS

ASSEMBLY

HARNESS

WIRES

ENTHALPY

SWITCH

GROMMET

BLOCK-OFF PANEL

DIFFERENTIAL

ENTHALPY

CONTROL

ENTHALPY SWITCH ACCESSORY

DIFFERENTIAL ENTHALPY CONTROL

ACCESSORY

Fig. 6 — Accessory Wiring

Fig. 7 — Differential Enthalpy Control Location — 48/50HG and 48/50PG20-28

1 2 3 4 5 6 7 8

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Carrier 50PG03-16 Specifications Page 4