Download Bosch SM070 Specifications

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Electrical | 29
SM Series Heat Pump
ELECTRICAL
Refer to electrical component box layout.
(Figure #94)
6
5
7
4
Field wiring must comply with local and
national electric codes.
12
3
8
Power to the unit must be within the
operating voltage range indicated on
the unit nameplate or on the
performance data sheet.
2
9
1
10
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.
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 (Figures#108 through
#113,Pg#60 through Pg#66).
Units supplied with internal electric heat require
two (2) separate power supplies:
11
Figure # 94
[1] Compressor contactor
[2] Comfort Alert Module (Option)
[3] Emergency Relay (Option)
[4] Second Stage Relay
[5] Hot Gas Reheat Relay (Option)
[6] Cooling Relay
[7] Unit Protection Module (UPM)
[8] Terminal block (Option)
[9] Auxiliary Relay (Option)
[10] Transformer
[11] Capacitor
[12] ECM Module (Option, mounts on E-Box cover)
1) Unit compressor
2) Electric Heat, blower motor and control
circuit.
------------------------------------------------------------Refer to the ELECTRIC HEATER PACKAGE
OPTION section and Pg#60 through Pg#66 for
wiring diagrams. See data plate for minimum
circuit ampacities and maximum fuse/breaker
sizing.
Revised 08-13
6 720 220 406 (2013/9)