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YORK INTERNATIONAL
FORM 150.63-NM1
21
Control Panel
See electrical note 9
Power Panel
Micropanel
Field Unit Power
Supply
1L1
1L2
1L3
N-F Disconnect
Sw. OR Molded
Case Circuit
Bkr.
Field 120-1-60 Micropanel
Power Supply if control
transformer not supplied
GRD
CTB2
2
L
13 14
CTB1
Air Proving Switch
CTB3
To Field Installed Liquid Line Solenoid Valves – See Fig. 6
Electrical Notes and Legend located on
page 24.
FIG. 4 – OPTIONAL SINGLE POINT POWER WIRING
OPTIONAL SINGLE-POINT POWER WIRING
NON-FUSED DISCONNECT SWITCH OR CIRCUIT BREAKER (0016 - 0090)
LD04507
1
It is possible that multiple sources of power can be supplying the unit power panel. To pre-
vent serious injury or death, the technician should verify that no lethal voltages are present
inside the panel after disconnecting power, prior to working on the equipment.
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