York YCAL0014SC, Installation Operation & Maintenance, Page: 15 / 136

YORK INTERNATIONAL
15
FORM 150.62-NM1
Control Panel
Power Panel
Micropanel
Field Unit Power Supply
Field 120-1-60 Micropanel
Power Supply if control
transformer not supplied
See electrical note 9
1L1
1L2
1L3
GRD
13 14
CTB1
2
L
CTB2
Flow Switch
Electrical Notes and Legend located on Page 18 and 19.
FIG. 3 – OPTIONAL SINGLE POINT POWER SUPPLY WIRING
OPTIONAL SINGLE POINT POWER SUPPLY WIRING – (0040 - 0080)
LD04484
IT IS POSSIBLE THAT MULTIPLE SOURCES OF POWER CAN BE SUPPLYING
THE UNIT POWER PANEL. TO PREVENT SERIOUS INJURY OR DEATH, THE
TECHNICIAN SHOULD VERIFY THAT NO LETHAL VOLTAGES ARE PRESENT
INSIDE THE PANEL AFTER DISCONNECTING POWER, PRIOR TO WORKING ON
EQUIPMENT.
THE UNIT EVAPORATOR HEATER USES 120 VAC. DISCONNECTING 120 VAC
POWER FROM THE UNIT, AT OR BELOW FREEZING TEMPERATURES, CAN
RESULT IN DAMAGE TO THE EVAPORATOR AND UNIT AS A RESULT OF THE
CHILLED LIQUID FREEZING.
1