Safety Devices And The Upm Controller - Bosch LM024 Operating Instructions Manual

LM CS Series Heat
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#17 through #25,
Pg#30 through Pg#40).
4
3
2
15
10
1
Figure # 4 - Single Phase unit
12
Figure # 5 EBox Cover
[1] Compressor contactor
[2] Energy Management System Relay (Option)
[3] Hot Gas Reheat Relay (Option)
[4] Cooling Relay
[5] Unit Protection Module (UPM)
[6] Terminal block Low-Voltage
[7] Auxiliary Relay (Option)
[8] Capacitor
Revised 01-14
5
6
7
8
14
9
11
[9] ECM Interface Board(Option, mounts on E-Box
cover)
[10] Comfort Alert Module (Option)
[11] DDC (Option)
[12] LonWorks Card (Option)
[13] Input Expansion Module (Option)
[14] Smart Start Assist (Option)
[15] Ground Lug

Safety Devices and the UPM Controller

1
2
3
4
5
17
7 15
Figure # 6 Typical UPM Board
[1] Board Power Indicator
[2] UPM Status LED Indicator
[3] Water Coil Freeze Protection Temperature
Selection [R30]
[4] Air Coil Freeze Protection Temperature
Selection
[5] UPM Board Settings
[6] Water Coil Freeze Connection
[7] Air Coil Freeze Connection
[8] LED Status-Diagnostic Connection
[9] 24VAC Power Input
[10] Compressor Contact Output
[11] High Pressure Switch Connection
[12] Call for Compressor Y1
[13] Low Pressure Switch Connection
[14] 24VAC Power Common
[15] Condensate Overflow Sensor
[16] Dry Contact
[17] UPM Ground Standoff
Electrical | 7
11
13 12
16
8 10
14 9
8 733 920 847 (2014/01)