Wiring System; Wiring Connections - Kenworth SP671-PT1132 Owner's Manual

REFRIGERAZIONE MOBILE - FRIGOBAR
ISO 9002 certified
The refrigerators of the DRAWER type are pre-set for being assembled in a niche. Fastening can be done
on the front frame.
It is very important for the refrigerating unit, consisting of the compressor and the condenser, to be well
ventilated, with the cool air coming in from the bottom and going out from the top. You must ensure proper
ventilation of the refrigerating unit.

1.2 WIRING SYSTEM

To have the refrigerator operate with the vehicle battery, please refer to the instruction manual of the
vehicle's manufacturer.
WIRING SYSTEM: FUNCTIONS AND FEATURES (WITH AUXILIARY BATTERY)
The electronic unit of the compressor is an electronic equipment which pilots the motor of the compressor
and carries out all the controls and electrical protection of the system. Its main features are the following:
• Protection of the battery with automatic turning off of the compressor when the feeding voltage reaches
the minimum threshold (cut out)
• The compressor will start up automatically again when the voltage goes back to normal values (cut in).
FEEDING
12V

1.3 WIRING CONNECTIONS

When you connect the refrigerator, you must remember the following:
1) Use cables having the proper cross section (see table) to make the feeding lines. If possible, such cables
should be without any joints on the leads which could lead to voltage drops.
2) If the wiring system of the vehicle is insufficient or not properly sized for the refrigerator, connect it directly
to the battery without using intermediate wiring.
3) Any switches must have a breaking load not less than 20 A
4) Make sure the polarity is right: connect the red cable to the positive terminal (+) and the black cable to
the negative terminal (-).
5) Protect the feeding line with a 15 A fuse.
Warning
Never connect bare electric wires, and use only connectors of a size suitable to the cross section of the
cable being used.
4
KENWORTH SP671-PT1132 (Indel B PN SP671 - SP658)
TABLE FOR BATTERY SAVER TRIPPING VOLTAGES
CUT OUT
CROSS SECTION
CABLES mm
2
2,5 (13 AWG)
4 (11 AWG)
6 (9 AWG)
10 (7 AWG)
9,5V
Maximum lenght of cables
in metres
12V
2,5 (8 ft)
4 (13 ft)
6 (20 ft)
10 (33 ft)
KENWORTH SP671-PT1132 (Indel B PN SP671 - SP658)_10-2013
CUT IN
11V