Engine Coolant Hose Connections And Routing; Closed Loop Cooling; Electrical Wiring And Hmi Controller Installation - Trane Thermo King TriPac EVOLUTION Installation Manual

• Refrigeration hoses should be installed onto components in such a way as to allow for vibration and movement of
the cab. THEY SHOULD NEVER BE STRETCHED TIGHT!
• All refrigeration connections should be tightened securely using two wrenches.
• Always keep refrigeration hoses from rubbing or chafing against sharp metal objects, rotating components or hot
components.
• Protective covers or sleeving (installer supplied) for the refrigeration hoses may be required depending on the
installation.
• Always install the condenser's receiver drier in the direction indicated by the arrow.
• Thermo King Evacuation Station (204-725) and Evacuation Station Operation and Field Application Instructions (TK-
40612) are recommended.
• The oil in the evacuation station vacuum pump should be changed after each use.
• The A/C system must be leak free. Check for leaks by using an electronic leak detector.
• The A/C system will be charged with 1.2 to 2.0 bs. (depending on hose lengths) of R134a.

Engine Coolant Hose Connections and Routing

The following steps are for APU's equipped with Tractor Coolant Integration only.
• Coolant hoses should be routed from the APU to the tractor's engine without any sharp bends or kinks.
• Coolant hoses should be installed and routed in such a way as to allow for vibration and movement. THEY SHOULD
NEVER BE STRETCHED TIGHT!
• Coolant hoses should be protected with supplied plastic sleeving and adequately secured to the chassis with clamps
and band wraps.
• Always keep coolant hoses from rubbing or chafing against sharp metal objects, rotating components or hot
objects.
• All coolant pipe fittings installed should be of proper material type, (i.e: brass to brass, or copper to copper).
• All coolant fittings should be assembled using pipe thread sealer to prevent leaks.
• Ball type shutoff valves (supplied) should be installed to allow the TriPac cooling system to be closed off and
isolated from the tractor's engine cooling system.
• Shutoff valves and fittings must be adequately supported to prevent cracks or leaks from vibration.

Closed Loop Cooling

Do not start the APU's engine without first adding coolant and bleeding all air from the system.

Electrical Wiring and HMI Controller Installation

• Electrical wiring should be installed and routed in such a way as to allow for vibration and movement of the cab.
THEY SHOULD NEVER BE STRETCHED TIGHT!
• Always keep electrical wiring from rubbing or chafing against sharp metal objects, rotating components or hot
objects.
• All electrical wiring should be neatly routed and secured with band wraps or clamps.
• Do not route electrical wires, harness or battery cables together with fuel lines.
• Excess length of battery cables should be cut off to reduce voltage drop.
• Superlube (203-524) or equivalent should be applied to all electrical connections.
• All main power and ground accessory connections must be installed directly on top of the tractor's battery terminal
posts and tightened securely. DO NOT INSTALL UNDER OEM BATTERY CABLES!
• The HMI should be visible and mounted away from windows, air vents, out of direct sunlight and not touching
anything to accurately measure air temperature.
TK 55676-19-IM-EN
T T i i p p s s F F o o r r a a S S u u c c c c e e s s s s f f u u l l I I n n s s t t a a l l l l a a t t i i o o n n
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