Electronic Thermostat Installation - Bosch SM024 Installation, Operation And Maintenance Manual
Sm ah series heat pump
Hide thumbs
Also See for SM024:
- Installation, operation and maintenance manual (100 pages) ,
- Installation and maintenance manual (96 pages) ,
- Manual (44 pages)
Table of Contents
Advertisement
SM AH Series Heat Pump
Figure 11: Motor Profile Air Flow Table CFM - Two Stage Units
Fan
Model
Only
SM024
450
SM036
700
SM048
900
SM060
1200
SM070
1600
Heater
Model
Model
SM024 thru 070
HK050-1XS
SM024 thru 070
HK100-1XS
SM036 thru 070
HK100-1XM
SM048 thru 070
HK150-1XM
HK150-1XM
SM048 thru 070
HK200-1XM
HK200-1XM
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.
Units supplied with internal electric heat require
two (2) separate power supplies: one for the unit
compressor and one for the electric heater
elements, blower motor and control circuit.
Refer to Figure #9 for wiring instructions,
minimum circuit ampacities and maximum fuse/
breaker sizing.
Electronic Thermostat Installation
Position the thermostat subbase against the wall
so that it is level and the thermostat wires
protrude through the middle of the subbase. Mark
the position of the subbase mounting holes and
drill holes with a 3/16-inch bit. Install supplied
anchors and secure base to the wall. Thermostat
Y1 COOL/
Y2 COOL/
HEAT
HEAT
500
800
1050
1225
925
1500
1500
2000
1600
2200
Figure 12: Heater Package Compatibility
KW
Heater Amps
208V
4.8
17.3
9.6
34.7
9.6
34.7
14.4
52.0
14.4
34.7
17.3
19.2
69.3
19.2
34.7
34.7
Figure 10:
AUX
EMERG
PLUS
HEAT
HEAT
800
800
1225
1225
1500
1500
2000
2000
2200
2200
Circuit
MCA
240V
208V
20.0
L1/L2
27.1
40.0
L1/L2
48.8
40.0
L1/L2
49.5
60.0
40.0
L1/L2
49.5
20.0
L3/L4
21.7
80.0
40.0
L1/L2
49.5
40.0
L3/L4
43.4
wire must be 8-conductor, 18-AWG wire. Strip the
wires back 1/4-inch (longer strip lengths may
cause shorts) and insert the thermostat wires into
the connector as shown. Tighten the screws to
ensure secure connections. The thermostat has
the same type connectors, requiring the same
wiring. See instructions in the thermostat for
detailed installation and operation information.
When using a 2-cool, 3-heat thermostat both the
W1 & W2 on the Heat Pump and W2 & EM on
the thermostat must be connected together via
a jumper. (See Figure#13)
MINUS
TAP COOL/
ADJ
ADJ
HEAT/DELAY
900
700
1400
1050
1700
1275
2300
1700
2300
1900
Max. Fuse
240V
208V
240V
30.4
30
30
55.4
50
60
56.3
50
60
56.3
60
60
25.0
25
25
56.3
50
60
50.0
45
50
8733920846 (2015/01)
Electrical | 9
A
A
B
A
A
AWG
Min.
8
6
6
6
10
6
6
- Quick Links:
- Troubleshooting
Hide quick links:
Advertisement
Table of Contents
