UMD V3 Installation Manual - Remote Control
13 November 2018
Page
11
of
39
Cooltrax Power Cable
1.
Power Cable Battery Connections
a.
Locate the red wire on the battery cable assembly. This lead, with in-line fuse and eye terminal,
should be added to the leads coming from the Carrier system’s battery positive (+VE) terminal.
b.
Locate the black wire on the battery cable assembly. This lead, with eye terminal, should be added
to the leads coming from the
Carrier system’s battery negative (
-VE) terminal.
2.
Thread the power cable UMD connector up from the battery area to the UMD.
3.
Use cable ties to ensure that the wires leading to and from the fuse holder are not subjected to strain or
tension that could cause the wires to be pulled from the fuse holder.
4.
NOTE: Sufficient amounts of slack must be maintained to prevent possible disconnection, or damage to
the wires and fuse holder. In addition, care must be taken to mount the fuse holder in a position that will
allow it to be easily accessed in the event that future servicing is required.
5.
DO NOT CONNECT TO THE UMD
at this time but leave enough cable in the area of the UMD so that there
will be no tension on the cable when it is connected.
6.
Coil and tie down any excess Power Cable Length in the UMD area.
7.
Cable tie the UMD Power cable from the UMD area down to the battery area onto the existing wiring
harness or fixed hardware - keep away from any sources of excessive heat.
8.
When connecting the Power cable to the UMD ensure there is sufficient length available so that there is no
tension or kinking applied to the cable at the connection point.
Note: Continuous power can also be taken from the Starter Motor rather than from the battery.
Note: Enclose the cable in split tubing up to 150mm from the connectors at each end of the cable
Avoid routing the cables any closer than three inches of pipes, valves (plumbing) or parts of the
engine that become hot during reefer operation.
Installing the UMD
1)
The UMD must be positioned:
a)
in a suitable location where it is not directly exposed to outside weather elements;
b)
where it is not directly exposed to any water or other liquids including water emissions from the
internal workings of refrigeration unit;
c)
where it is not directly exposed to excessive heat, dirt or grease;
2)
The connection sequence for any of the UMD connectors to their associated cables is common :
a)
Ensure that the number of circuits in the cable connector matches the number of circuits of the
connector on the UMD.
b)
Align the cable end groove in the cable connector body to the ridge in the connector on the UMD.
c)
Push the cable connector fully into the UMD connector receptacle.
d)
Rotate the cable connector locking ring clockwise while pushing it gently towards the UMD. When
the locking ring aligns with the connector bayonet coupling the ring will go forward.
