12
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905701 REV B 09/18/18, PG 12 OF 34
Evaporator and Heater Hardline
Installation
1.
2.
3.
4.
5.
6.
7.
8.
Install the #10 evaporator/compressor hardline onto the #10 evaporator fitting using a properly lubricated
#10 O-ring (See Photo 1, below, and Figure 1, Page 20).
Install the #6 evaporator/drier hardline onto the expansion valve using a properly lubricated #6 O-ring (See
Photos 1 & 2, below, and Figure 1, Page 20).
Install the lower heater hardline onto the evaporator unit using a properly lubricated O-ring (See Photo 3,
below, and Figure 1, Page 20).
Install the upper heater hardline onto the evaporator unit using a properly lubricated O-ring (See Photo 4,
below, and Figure 1, Page 20).
NOTE: The upper heater hardline is longer from the nut to the first
bend.
Temporarily install the fresh air plate onto the evaporator firewall bracket using (3) 1/4-20 x 1 ½” studs (See
Photo 5, below).
Center the hardlines into the holes on the fresh air plate, and tighten the fittings (See Photo 5, below).
Remove the fresh air plate, and keep the studs on the evaporator firewall bracket with approximately 1/4” of
the studs showing.
Apply press tape to the #10 evaporator/compressor hardline as shown in Photo 6, below.
NOTE: Do not fully tighten the hardlines at this time. The hardlines will be adjusted before tightening.
Photo 1
Photo 2
Photo 5
Photo 4
Photo 3
Photo 6
Install #10
Evaporator/
Compressor
Hardline
091613
Install #6
Evaporator/Drier
Hardline
091612
Evaporator
Firewall Bracket
646915
Install Upper
Heater Hardline
091610
Install Lower
Heater Hardline
091611
Apply Press Tape
to #10 Evaporator/
Compressor Hardline
(3) 1/2-20 x 1 ½”
Studs
Expansion Valve
Center all
Hardlines and
Tighten Fittings
Fresh Air Plate
646912
