York HIDS006B21S Service Manual page 25

● For Outdoor Unit
Refer to the Service Manual for Outdoor Unit.
● For Indoor Units
The electrical wiring capacity of the outdoor unit is according to the "Installation and Maintenance Manual"
of the outdoor unit. Setting DIP switches may be required depending on the combinations with the outdoor
unit.
Select wiring capacity according to Table 3.1 below. This equipment can be installed with a Ground Fault
Circuit Interrupter (GFCI), which is a recognized measure for added protection to a properly grounded unit.
Install appropriate sized breakers / fuses / overcurrent protection switches, and wiring in accordance with
local, state and NEC codes and requirements. The equipment installer is responsible for understanding and
abiding by applicable codes and requirements.
Heat Pump System
Outdoor
Unit
Outdoor Unit
Power Supply
GFCI Main
Switch
Indoor
Unit
Indoor Unit
Power Supply
GFCI Main
Switchbox
Switch
Refer to the "Installation and Maintenance Manual"
for the connected outdoor unit for details of wire,
GFCI and main switch for outdoor unit.
SM-18001-rev.1
Outdoor Unit
Power Supply
Indoor Indoor
Unit Unit
Indoor Unit
Power Supply
Heat Recovery System
Outdoor
Unit
GFCI Main
Change-Over
Switch
Switchbox
GFCI Main
Switch
Refer to the "Installation and Maintenance Manual"
for the connected outdoor unit for details of wire,
GFCI and main switch for outdoor unit.
TROUBLESHOOTING
Box
Indoor Indoor Indoor
Unit Unit Unit
3-3