Typical Field Power Wiring Diagram - York PCG4 Series Installation Manual

THERMOSTAT
The room thermostat should be located on an inside wall approximately
60" above the floor where it will not be subject to drafts, sun exposure or
heat from electrical fixtures or appliances. Sealant should be used
behind thermostat to prevent air infiltration. Follow manufacturer's
instructions enclosed with the thermostat for general installation proce-
dure. Color coded insulated wires (minimum #18 AWG) should be used
to connect thermostat to unit. See Figure 6. Do not use power stealing
thermostats.
POWER AND CONTROL WIRING
Field wiring to the unit must conform to provisions of the current N.E.C.
ANSI/NFPA No. 70 or C.E.C. and/or local ordinances. The unit must be
electrically grounded in accordance with local codes or, in their
absence, with the N.E.C./C.E.C. Voltage tolerances which must be
maintained at the compressor terminals during starting and running
conditions are indicated on the unit Rating Plate and Table 1.
The wiring entering the cabinet must be provided with mechanical strain
relief.
A fused disconnect switch should be field provided for the unit. If any of
the wire supplied with the unit must be replaced, replacement wire must
be of the type shown on the wiring diagram.
Electrical service must be sized properly to carry the load. Each unit
must be wired with a separate branch circuit fed directly from the main
distribution panel and properly fused.
Refer to Figures 7 and 8 for typical field wiring and to the appropriate
unit wiring diagram for control circuit and power wiring information.
Table 5: Electrical Data
Model
24050 208/230-1-60
24075 208/230-1-60
30050 208/230-1-60
30075 208/230-1-60
36050, 36075 208/230-1-60
36100 208/230-1-60
42075, 42100 208/230-1-60
48065, 48100, 48125 208/230-1-60
60065, 60100, 60125 208/230-1-60
1. Minimum Circuit Ampacity.
2. Maximum Over Current Protection per standard UL 1995.
3. Fuse or HACR circuit breaker size installed at factory or field installed.
Johnson Controls Unitary Products
Compressor
Voltage
RLA LRA
8.7 45.0
8.7 45.0
9.8 57.0
9.8 57.0
13.0 78.0
13.0 78.0
20.0 112.0
24.3 117.0
27.1 144.2
Minimum wire size of 18 AWG wire should be used for all field
installed control wiring.
THERMOSTAT
R
G
Y
W
C
NOTE:
Heat Anticipator should be set at 0.35 AMPS for all models
FIGURE 6: Typical Field Control Wiring Diagram For Gas Heat - AC
Models
CONTACTOR
REFER TO ELECTRICAL
GND
DATA TABLES TO SIZE
LUG
THE DISCONNECT
FIGURE 7: Typical Field Power Wiring Diagram
OD Fan Supply
Motor Blower Motor
MCC FLA FLA
14.4 1.3 2.6
14.4 1.3 3.8
15.1 1.3 2.6
15.1 1.3 3.8
23.0 1.3 3.8
23.0 1.3 5.4
28.0 1.3 5.4
34.0 1.7 5.4
38.0 1.7 7.0
1183746-UIM-B-0215
RED
GREEN
CONTROL
YELLOW
BOARD
WHITE
BLUE
A0294-001
FIELD SUPPLIED
DISCONNECT
SINGLE
PHASE
POWER
SUPPLY
A0293-001
2
Max Fuse /
1
MCA
3
Breaker Size
(Amps)
(Amps)
14.8 20
16.0 20
16.2 25
17.4 25
21.4 30
23.0 35
31.7 50
34.7 60
42.6 60
7