Electrical Connections - York YACT038-072 Installation Manual

AFFINITY COMBINATION INSTALLATION MANUAL

Electrical Connections

General
Be sure the available power is the same voltage and phase
as that shown on the unit serial plate. Line and low voltage
wiring must be done in accordance with local codes or the
National Electric Code, whichever is applicable.
Unit Power Connection
Line Voltage connection is made by connecting the incoming
line voltage wires to the "L" side of the contactor as shown.
Consult the Electrical Data table for correct fuse size.
External Loop Pump Power Connection
If the unit is to be used with an external loop pump (FC1
or FC2 flow center), the pump(s) will be connected to the
terminals on PB1 in the unit electrical box as shown. The
pumps will automatically be cycled as required by the
unit or by a secondary signal from another unit sharing
the flow center. (Refer to the Wiring Schematics section.)
208 Volt Operation
All 208-230 volt units are factory wired for 230 volt
operation. For 208 volt operation, the red and the blue
transformer wires must be switched on terminal strip PS1.
(Refer to the Wiring Schematics section.)
Unit Line Voltage 208-230/60/1
L1
L2
14
PB1
PS1
PS2