Thermo King TriPac Envidia, Installation Manual

Page: 9 / 80

7
Tips for a Successful Installation (continued)
D2/D4 HEATER INSTALLATION (Heat Option)
•
Determine the best location of the heater inside the sleeper, typically under the bunk. Allow clearance for dismantling
for service.
•
Install heater so it will maintain a minimum distance of 2.00 inches (50.8 mm) from any heat sensitive or flammable
material.
•
The heater must only be mounted on a flat horizontal surface.
•
Heater must be installed flush with the floor pan (i.e. sheet metal, fiberglass, etc.) to ensure proper sealing of the
mounting plate and gasket.
•
All edges of access holes made in fiberglass and wood composite floors must be sealed correctly with fiberglass cloth
and resin.
•
Outside air intake and exhaust hoses must be installed correctly for the heater to operate safely.
•
Exhaust hose should be mounted slightly downwards to help drain off condensation.
•
Install exhaust hose so it will maintain a minimum distance of 2.00 inches (50.8 mm) from any heat sensitive or
flammable material.
•
Inside air inlet and outlet ducts must be installed correctly for the heater to operate safely:
•
Pulse type fuel pump outlet must be installed at a 15 to 35 degree angle up from horizontal to operate correctly.
•
Fuel pickup tube must be installed correctly in the fuel tank or the heater will not operate.
•
Fuel line from the pickup tube to the fuel pump to the heater should be routed at a continuous rise. Use a hose cutter
or sharp knife to cut plastic fuel lines. Do not use a wire cutter as this will pinch the plastic fuel line closed.
•
Do not route electrical wires, harness or battery cables together with fuel lines.
•
BEFORE operating the heater, the fuel lines must be bled of air using the Heater Priming Harness (204-1144) or
damage to the fuel pump will result.
•
The Diagnostic Code Reader (204-1143) must be used to setup and operate the heater in the run-in mode.
A/C HOSE CONNECTIONS AND ROUTING
•
Keep all the A/C fittings capped and sealed
until the installation of the refrigeration hoses. Refrigerant oil is
extremely hygroscopic and a system left open for more than 5 minutes may require extensive
evacuation/dehydration time to remove moisture.
•
Only cut refrigerant hoses with the correct hose cutting tool (204-677). NEVER USE A SAW!
•
Always use the correct hose fitting tool (204-1045) when assembling refrigeration hoses.
•
Always lubricate hose fittings with Alkyl Benzene Refrigerant Oil (670404TKA) when assembling to refrigeration
hoses.
•
Always install and lubricate O-rings with Alkyl Benzene Refrigerant Oil (670404TKA) when connecting
refrigeration hose fittings to component connection fittings.
•
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.