Optional Single Point Power Supply Wiring - York MILLENNIUM YCAL0043SC Manual

Installation
OPTIONAL SINGLE POINT POWER SUPPLY WIRING – (0117 - 0253)
IT IS POSSIBLE THAT MULTIPLE SOURCES OF POWER CAN BE SUP-
PLYING THE UNIT POWER PANEL. TO PREVENT SERIOUS INJURY
OR DEATH, THE TECHNICIAN SHOULD VERIFY THAT NO LETHAL
VOLTAGES ARE PRESENT INSIDE THE PANEL AFTER DISCONNECT-
ING POWER, PRIOR TO WORKING ON EQUIPMENT.
THE UNIT EVAPORATOR HEATER USES 115 VAC. DISCONNECTING
115 VAC POWER FROM THE UNIT, AT OR BELOW FREEZING TEM-
PERATURES, CAN RESULT IN DAMAGE TO THE EVAPRORATOR AND
UNIT AS A RESULT OF THE CHILLED LIQUID FREEZING.
Electrical Notes and Legend located on Page 17 and 18.
FIG. 3 – OPTIONAL SINGLE POINT POWER SUPPLY WIRING
14
Power Panel
See electrical note 9
Control Panel
2
L
Micropanel
CTB2
13 14
CTB1
Field 115 -1- 50 Micropanel
Power Supply if control
transformer not supplied
Field Unit Power Supply
Flow Switch
LD4512
YORK INTERNATIONAL