Installation Guide for NCPE Split-System Condensing Units
10
Electrical - High Voltage
n
i
NOMINAL
VOLTAGE
MINIMUM
VOLTAGE
MAXIMUM
VOLTAGE
208-230
197
253
Please refer to pages 15, 16 or 17 for proper
capacitor sizing.
High Voltage Power Supply
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i
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing
and troubleshooting of this product,
it may be necessary to work with live
electrical components. Failure to follow
all electrical safety precautions when
exposed to live electrical components
could result in death or serious injury.
!
WARNING
The high voltage power supply must agree with the
equipment nameplate.
OR
Make certain that the volts, hertz, and phase
correspond to that specified on the unit rating
plate, and that the service provided by the utility is
sufficient to handle the additional load imposed by
this equipment.
Power wiring must comply with national, state, and
local codes.
Follow instructions on unit wiring diagram located on
the inside of the access door, or cabinet and in the
wiring diagrams included with the unit.
Field line wiring by others
CC
C
S
R
COMP
CFM
C
H
F
LPS
HPS
CC
208
V
C
+
-
230
V
XFMER
*FIELD SUPPLIED
CC
L1
L2
LINE VOLTAGE
LOW VOLTAGE
C
Y
*FIELD SUPPLIED
T-STAT
ON
OFF
Disconnect
Switch
Thru-the-Wall
Condensing Unit
Install a separate disconnect
switch at the location of the
through the wall unit.
Ground the unit per national,
state, and local code
requirements.
