Caution – Carrier SINGLE PACKAGE ROOFTOP 48HC User Manual

Page 23

Typical
Thermostat
Corrections

O/B/Y2

(see Note)

Note: Typical multi-function marking. Follow manufacturer’s configuration

instructions to select Y2.

Field Wiring

Central

Terminal

Board

T–STAT

See
Caution

UNIT DAMAGE HAZARD

Failure to follow this caution may cause a short circuit.

CAUTION

Carefully check the connection of control coductor
for indoor fan control at terminal G. Connecting the
indoor fan lead to terminal C will cause a short circuit
condition which can cause component damage inside
the unit or at thermostat.

C10731

Fig. 30 -- Typical Low--Voltage Control Connections

NOTE: If utilizing the through the base connections,
route the low voltage wire through the wire ties to the

central terminal board.

Rubber

Grommet

Corner

Post

Wire

Ties

Thru the Base

Connection

C10734

Fig. 31 -- Field Control Wiring Raceway

Heat Anticipator Settings —

Set heat anticipator settings at 0.14 amp for the first stage

and 0.14 amp for second--stage heating.

Transformer Connection for 208--v Power Supply —

All units except 208/230-v units are factory wired for the

voltage shown on the nameplate. If the 208/230-v unit is

to be connected to a 208-v power supply, the control

transformer must be rewired by moving the black wire
with the

-in. female spade connector from the 230--v

connection and moving it to the 208-v

-in. male

terminal on the primary side of the transformer. Refer to

unit label diagram for additional information.

48H