10
12. Electrical - high voltage
12.1 High voltage power supply
12.2 High voltage disconnect switch
WARNING: LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and trouble shooting 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.
The high voltage power supply must agree with the equipment
nameplate.
Power wiring must comply with National, State and Local Codes.
Follow instructions on unit wiring diagram located on the inside of the
access panel.
Install a separate disconnect switch at the outdoor unit.
Field provided flexible electrical conduit must be used for high voltage
wiring.
12.3 High voltage ground
Ground the outdoor unit per National, State and Local Code
requirements.
Figure 29
Figure 30
“-----”The electric auxiliary heat connection(option).
W:Electric auxiliary heat signal.
W1 :The first Electric auxiliary heat signal.
W2 :The second Electric auxiliary heat signal.
D signal is connect to the Electric auxiliary heat or The first Electric auxiliary heat.
“
*”
:Outdoor unit signal. Only for single-stage compressor systems.
THERMOSTAT
C
GREEN
INDOOR UNIT
OUTDOOR UNIT
Y
R
G
Y
YELLOW
BLACK
BLACK
G
C
C
B
R
B
RED
BLUE
Support 2H thermostat
W
D
R
PURPLE
w1 w2
WHITE
Support 3H thermostat
R
THERMOSTAT
C
GREEN
INDOOR UNIT
OUTDOOR UNIT
Y
R
G
Y
YELLOW
BLACK
BLACK
G
C
C
B
R
B
RED
BLUE
W1
W2
D
PURPLE
w1 w2
WHITE
Notes:
*
*
Control Wiring for H/P Systems
Figure 28
nameplate
