WaterFurnace Versatec Base - Manual (Page 16)

16
VERSATEC BASE 50Hz SERIES INSTALLATION MANUAL
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.
Power Connection
Connect the incoming line voltage wires to L1 and L2 of the
contactor for single-phase unit. Consult the Electrical Data
tables for correct fuse sizes.
Aurora Base Control Box
Electrical Connections
220 Volt Operation
All Versatec Base Series 220-240 units are factory wired for
240 volt operation. For 220 volt operation, the red and blue
transformer wires must be switched on terminal strip PS.
CAUTION: When installing a unit with a
variable speed ECM blower motor in 420/50/3
voltage, a neutral wire is required to allow
proper unit operation.
For Aurora Base Control, set SW2-1, FP1, on the printed
circuit board for applications using a closed loop antifreeze
solution to 15°F [-9.4°C]. On applications using an open
loop/ground water system (or closed loop no antifreeze), set
this dip switch to 30°F [-1.1°C], the factory default setting.
(Refer to the Dip Switch Field Selection table).
Freeze Detection