Thermo King TriPac Envidia, Installation Manual

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D2/D4 Heater Duct Installation (Heat Option)
Duct Locations
CAUTION:
•
USE SUPPLIED HEATER DUCT HOSE ONLY! Do not use existing vehicle ducts or outlets.
Ducts and outlets must be capable of withstanding a minimum of 300F (148.9C) operating
temperatures.
•
Adjustable air vent must always be installed so it cannot blow hot air directly at living creatures (people,
animals) or objects sensitive to temperature.
•
Do not position outlet so that it will blow hot air directly at operator or at thermostat.
•
Position air outlet so that it cannot be obstructed.
•
Use the supplied protective air intake grille on the air inlet side of the heater to prevent objects from being
sucked in.
•
Do not overtighten duct clamps.
•
DO NOT lay or bundle the heater ducts with A/C ducts. They should not touch each other.
•
Ensure provisions are made for proper air return ventilation.
The heater is equipped with a Return Inlet and Discharge Outlet for attaching the flexible heater duct hoses.
IMPORTANT: A return air duct to the heater should be provided for best heating efficiency.
•
Return Inlet must be provided to return air to the heater. It is typically mounted at the base of the bunk
directly opposite the discharge outlet vent.
•
Discharge Outlet should be located at floor level to provide maximum heating comfort in the sleeper. It is
typically installed at the base of the bunk on one end.
•
Heater ducts should be installed and routed with smooth bends and no kinks to provide maximum airflow.
Installation
Special Tools Required
Drill Motor
2-1/2” Hole Saw (for installing discharge return air vents)
3” dia. Hole Saw (for routing ducts through compartment walls if required)