TM 10-8145-222-23
MAINTAINER MAINTENANCE
MICROPROCESSOR CONTROL BOX
(MTRCS02 ONLY)
REPAIR
INITIAL SETUP:
References
Tools and Special Tools
TM 10-8415-222-10
Service Refrigeration Ordnance
TM 10-8415-222-10
Tool Kit (WP 0096, Table 2, Item 6)
TM 10-8145-222-23P
Shorting Probe (WP 0097, Table 2, Item 38)
Personnel Required
Equipment Condition
Utilities Equipment Repairer
Refrigeration unit shut down (TM 10-8415-222-10)
External power cables disconnected (TM 10-8415-
222-10)
REPAIR
Microprocessor Control Box Component Identification
Table 1 and Figure 1 and Figure 2 provides identification and location information for all components contained within
the microprocessor control box.
Table 1. Microprocessor Control Box Component Identification.
MPC Box
Figure
Item
Component
Location
Nomenclature
1
1
Relay
Back Wall
Overload Protector (OL)
2
Relay
Back Wall
Flashing Relay (FLR), Electric Motor Relay
1
(1EMR, 2EMR)
1
3
Resistor
Back Wall
Shunt (SH1)
1
4
Fuse
Back Wall
F1-80A
1
5
Fuse
Back Wall
F28 5A
1
6
Fuse Block
Back Wall
F14-F19, F30-F33 8A
1
7
Relay
Back Wall
Electric Heat Relay (1EHR, 2EHR)
1
8
Capacitor
Back Wall
C1, C2, C3
1
9
Contactor
Back Wall
Motor Contactor (MC)
2
1
Relay Board
Door
Relays and Fuses
2
Relay
Relay Board
2
Electric Relay (DER), Run Relay (RR),
Glow Plug Relay (GPR)
3
Relay
Relay Board
Main Heat Relay (MHR), Run Control
2
Relay (RCR), Hot Gas Relay (HGR), Cool
relay (CR),
2
4
Connector
Relay Board
1J, 2J, 3J