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SM Series Heat Pump
ELECTRICAL
Refer to electrical component box layout. (Figure #46)
WARNING: Field wiring must comply with
local and national electric codes.
WARNING: Power to the unit must be
within the operating voltage range indicated
on the unit nameplate or on the
performance data sheet.
NOTICE: Operation of unit on improper line
voltage or with excessive phase imbalance
will be hazardous to the unit, constitutes
abuse and may void the warranty.
[1] Compressor contactor
[2] Comfort Alert Module (Option)
[3] Energy Management Relay (Option)
[4] UPM
[5] Terminal Block
[6] Pump Valve Relay
[7] Transformer
Revised 07-17
Properly sized fuses or HACR circuit breakers must be
installed for branch circuit protection. See unit
nameplate for maximum fuse or breaker size.
The unit is provided with a concentric knock-out for
attaching common trade sizes of conduit, route power
supply wiring through this opening. Always connect the
ground lead to the grounding lug provided in the control
box and power leads to the line side of compressor
contactor as indicated on the wiring diagram Pg#55
through Pg#57).
10
4
9
5
1
6
Figure # 46 Ebox Layout
[8] Capacitor
[9] ECM Board
[10] Smart Start Assist (Option)
[11] Ground Lug
Units supplied with internal electric heat require
two (2) separate power supplies:
1) Unit compressor
2) Electric Heat, blower motor and control circuit.
-------------------------------------------------------------
Refer to the ELECTRIC HEATER PACKAGE
OPTION section and Pg#55 through Pg#57 for
wiring diagrams. See data plate for minimum circuit
ampacities and maximum fuse/breaker sizing.
7
3
11
2
8
Electrical | 17
8733942411 (2017/06)
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