6
18-AH47D1-2
Section 4. Coil with a Brazed TEV
4.1 Remove the existing coil
4.2 Installing the TEV onto the
replacement coil
1) To install the metering device, remove the
outer sheet metal cover of the replacement
evaporator coil by taking out the screws
around the perimeter of the shield.
This will expose the short liquid line and dis-
tributor assembly of the replacement coil.
Retain the screws for re-attachment in a later
step (See Figure 2)
Note: If this is a first time coil replacement a
TEV must be ordered from parts to convert the
air handler to a mechanically fitted TEV .
Note: Take care not to bend the coil distributor
lines. Use a backup wrench to prevent stress
on components. (See Figure 3)
2) Remove the short liquid line. (See Figure 4)
3) Bolt the TEV to the distributor assembly. (See
Figure 5)
Note: Torque specification for TEV equals 1/6
turn past finger tight.
4) Remove the solder cap from the short liquid
line to connect a field fabricated liquid line.
Figure 9 - Connecting equalizer line
Figure 8 - Removing Schrader core
5) Remove the Schrader core from the brass fit-
ting on the suction manifold before connecting
the equalizer line. (See Figure 8)
6) Connect the equalizer line to the brass fitting
on the suction manifold. (See Figure 9)
For coil replacement and reconnection instruc-
tions, see
Section 6.
