Power Wiring - Rheem A17 Series Installation Instructions Manual

4.0 INSTALLATION
4.9 Control Wiring (cont.)
TYPICAL 2-STAGE THERMOSTAT: AIR CONDITIONER
WITH ELECTRIC HEAT
Typical Two-Stage Thermostat with Dehumidification
Y1 Y2 G
Air Handler
W/BK
W1
W/BL
W2
Y
Y1
Y/BL
Y2
R
R
BR
C
G
G
ODD
** ODD non-functional on (-)H2T air-handlers
Field-Installed
Factory Standard
TYPICAL 2-STAGE THERMOSTAT: AIR CONDITIONER
WITH ELECTRIC HEAT USING A HUMIDISTAT FOR
DEHUMIDIFICATION
Typical Two-Stage Thermostat
Y1 Y2 G W1 W2 C
Air Handler
W/BK
W1
W/BL
W2
Y
Y1
Y/BL
Y2
R
R
BR
C
G
G
ODD
** ODD non-functional on (-)H2T air-handlers
Field-Installed
Factory Standard
TYPICAL 2-STAGE THERMOSTAT: AIR CONDITIONER
AND FURNACE
Typical
Two-Stage
Thermostat
R
C
Y1
Y2
W1
W/E
G
W2
Field wiring must comply with the National Electric
Code (C.E.C. in Canada) and any applicable local
code.
24
W1 W2 C R DHM
Outdoor Unit
Y
Y1
Y/BL
Y2
R
R
BR
C
Humidistat
R
Outdoor Unit
Y
Y1
Y/BL
Y2
R
R
BR
C
Furnace Outdoor
Control Unit
R
R R
BR
C C
Y
Y1 Y1
Y/BL
Y2 Y2
W1
G
W2

4.10 Power Wiring

4.10 Power Wiring
It is important that proper electrical power from a
commercial utility is available at the outdoor unit
contactor. Voltage ranges for operation are shown below.
VOLTAGE RANGES (60 HZ)
Operating Voltage Range at Maximum
Nameplate Voltage Load Design Conditions for Compressors
208/230 (1 Phase)
208/230 (3 Phase)
Install a branch circuit disconnect within sight of the
460
unit and of adequate size to handle the minimum circuit
575
capacity (see Section 3.2).
Power wiring must be run in a rain-tight conduit. Conduit
must be attached to the hole in the bottom of the control
box as shown below.
Contactor
Connect power wiring to line-voltage lugs on the
contactor located in the outdoor unit electrical box. (See
wiring diagram attached to unit access panel and above
illustration.)
Check all electrical connections, including factory wiring
within the unit and make sure all connections are tight.
DO NOT connect aluminum field wire to the contactor
terminals.
Copeland
187 - 253
187 - 253
414 - 506
517 633
ST-A1226-09