Specifications

8 | Electrical SM AH Series Heat Pump
SM AH Series Heat Pump873392084 (2013/11) Subject to change without prior notice
Low Voltage Control Wiring
The SM series units incorporate the ECM variable
speed fan motor and control interface board. The
thermostat should be connected to the air
handlers and then from the air handler to the
condensing section. The low voltage power supply
is located in the air handler.
In this application utilize a 9 conductor cable from
the thermostat to the air handler and 7 conductor
cable from the air handler to the condensing
section.
Each model has a number of heater sizes available.
Refer to Figure #7 for heater package compatibility
with specific units, model nomenclature and elec-
trical data
Figure 8: Motor Profile Air Flow Table CFM - Two Stage Units
Model
Fan
Only
Y1 COOL/
HEAT
Y2 COOL/
HEAT
AUX
HEAT
EMERG
HEAT
PLUS
ADJ
MINUS
ADJ
TAP COOL/
HEAT/DELAY
SM024 450 500 800 800 800 900 700 A
SM036 700 1050 1225 1225 1225 1400 1050 A
SM048 900 925 1500 1500 1500 1700 1275 B
SM060 1200 1500 2000 2000 2000 2300 1700 A
SM070 1600 1600 2200 2200 2200 2300 1900 A
Figure 9: Heater Package Compatibility
Model
Heater
Model
KW Heater Amps Circuit MCA Max. Fuse
AWG
Min.
208V 240V 208V 240V 208V 240V
SM024 thru 070 HP050-1XS 4.8 17.3 20.0 L1/L2 27.1 30.4 30 30 8
SM024 thru 070 HP100-1XS 9.6 34.7 40.0 L1/L2 48.8 55.4 50 60 6
SM036 thru 070 HP100-1XM 9.6 34.7 40.0 L1/L2 49.5 56.3 50 60 6
SM048 thru 070 HP150-1XM
HP150-1XM
14.4
14.4
52.0
34.7
17.3
60.0
40.0
20.0
SINGLE
L1/L2
L3/L4
71.2
49.5
21.7
81.3
56.3
25.0
80
60
25
90
60
25
4
6
10
SM048 thru 070 HP200-1XM
HP200-1XM
19.2
19.2
69.3
34.7
34.7
80.0
40.0
40.0
SINGLE
L1/L2
L3/L4
92.9
49.5
43.4
106.3
56.3
50.0
100
50
45
110
60
50
2
6
6
All heaters rated single phase 60 Hz, and include unit fan load. All fuses type “D” time delay or HACR type breaker or
HRC FORM 1. Wire size based on 60 deg. C copper conductors.