TK 55676-19-IM-EN
51
Control Box and Main Harness Installation
Control Box Location
Choose a location inside the tractor’s sleeper for the control box. The box can be mounted horizontally or vertically.
Make sure the location chosen allows access for:
• Installation of wiring
• Servicing of interface board components
• Operation of the reset switch.
NNoottee:: DDOO NNOOTT install the control box at this time. It will be installed AFTER all the TriPac electrical harnesses have been
connected.
DDPPFF UUnniittss OOnnllyy
Install the Small Engine Control Module (SECM) and harnesses now. Refer to TK 55727-19-IM for details.
PPoowweerr IInnvveerrtteerr OOppttiioonn OOnnllyy
Install the power inverter now. Refer to TK 55855-19-IM for details.
HHoouurrmmeetteerr OOppttiioonn OOnnllyy
Install the hourmeters and harness now. Refer to TK 55701-19-MS for details
Main Harness Installation Procedures
IImmppoorrttaanntt:: Before making any electrical connections, confirm the Heater and APU battery cables are not connected to
the battery.
NNoottee:: Excessive harnesses lengths should be doubled up and secured with band wraps. DO NOT CUT THE WIRE
HARNESSES!
NNoottee:: Exercise care when mating the connection. Always check the male pins for straightness before attempting to
mate connectors. If any resistance is felt when mating the connector, recheck the male pin alignment.
1. Position the control box inside the truck and remove the cover.
2. Route MMaaiinn EElleeccttrriiccaall HHaarrnneessss from APU up into sleeper through 3” access hole in the floor and into the control
box.
3. Connect 2200--ppiinn connector to mating connector ((JJ1144)) on interface board.
4. Connect 66--ppiinn connector to mating connector ((JJ55)) on interface board.
5. Attach the separate CCHH--0011 wire with the terminal ring onto interface board ground stud labeled CH ((JJ1166)) and torque
to 18 lb-in (2 N•m).
IImmppoorrttaanntt:: IMPORTANT: The CH-01 wire terminal ring must be positioned correctly onto the ground stud and tightened
properly or the unit will not operate.
6. Connect 1100--ppiinn connector to mating connector ((JJ66)) on interface board.
7. 44--ppiinn connector ((77CCLL,, 77CCLLAA,, CCOOIILLSSEENN,, CCOOIILLSSEENN--RRTTNN)) will be attached to mating connector on A/C evaporator
harness that will be installed in a later step.
8. 22--ppiinn connector ((SSBBYY,, 22AA)) is for Standby Truck Integration Switch (OPTION).
9. Attach 22 wire with terminal ring onto interface board power stud ((JJ1155 22)) and torque to 18 lb-in (2 N•m).
IImmppoorrttaanntt:: The 2 wire terminal ring must be positioned correctly onto the power stud as shown on decal located on
control box cover.