Thermo King TriPac Envidia, Installation Manual

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Evaporator/Control Box Installation
PREFERRED LOCATION - FLUSH WITH FRONT BULKHEAD
IMPORTANT: 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.
Maximum cooling is obtained when evaporator inlet is installed flush with the bulkhead. This allows the hot air from
the sleeper to be drawn directly into the return air inlet filter, through the evaporator coil and out the discharge air vents.
Special Tools Required
Template – Evaporator/Control Box
Drill Motor
1/4” Drill Bit
7/8” Step Reamer
2” dia. Hole Saw (standard installation)
3” dia Hole Saw (optional installation)
Reciprocating Saw
Caulk Gun and RTV Silicone Sealant
Sealing Tape (203-391)
Fiberglass Cloth and Resin Kit (if required)
Template
The supplied template represent the amount of area needed to accommodate the Evaporator/Control Box and it also
provides the locations for the mounting feet, drain holes and the two 2" access holes. One hole on each side of the
Evaporator/Control Box. If there is not enough room for the hole near the Controller, an optional larger hole can be cut
near the refrigeration hoses. The controller harnesses will wrap around the end of the Evaporator/Control Box.
IMPORTANT ACCESS HOLE INFORMATION:
•
The actual location of the 2” access holes will be determined by your particular sleeper construction, including
OEM internal floor supports, electrical wiring, etc.
•
Before drilling any holes, check for interference with internal wires, supports or interior panels. Avoid drilling
into the truck’s support members.
•
Floors made from fiberglass covered wood construction require the edges of the access holes be completely
sealed with fiberglass and epoxy resin.
•
An optional single 3” hole on the refrigerant line side may be used if mounting location does not permit a hole
on the controller side of the Evaporator/Control Box.
Figure 13: Evaporator Template shown