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CAUTION:
To prevent damage to the unit or internal
components, it is recommended that two wrenches
be used when loosening or tightening nuts. Do not
over tighten!
1. Using two wrenches, loosen the nut and distributor body
as shown in
. Turn the assembly nut counter-clock-
Figure 2
wise until the orifice body halves are seperated.
2. Insert a light-gauge wire hook between the distributor body
and the restrictor orifice while being careful not to scratch
either part. Carefully remove the restrictor orifice from the
distributor body. See
Figure 3
3. Check the actual size of the new orifice. The size is stamped
on its side. Do not use pin gauges to measure the orifice
diameter.
4. Insert the new orifice into the distributor body, rounded
end down. See
.
Figure 4
CAUTION:
To prevent damage to the unit or internal
components, it is recommended that two wrenches
be used when loosening or tightening nuts. Do not
over tighten!
5. Realign the assembly nut on the distributor body and hand
tighten both components. Mark a line on both bodies and
then tighten an additional 1/4 turn using two wrenches. The
movement of the two lines will show how much the nut is
tightened. If a torque wrench is used, tighten to 10-12 ft.
lbs. or 14-16 Nm.
Connecting the Linesets
NOTE: If installing a TXV, please follow the instructions
supplied with the kit. See
Table 2
1. Remove the grommet from the suction line, making note
of its orientation and fit.
2. Remove the coil access door.
3. Remove the rubber plug from the suction line.
4. Install the Thermal Expansion Valve (TXV). Please follow
the instructions supplied with the kit.
5. Route and cut both lineset tubes to proper length in
accordance with the outdoor unit specifications. Verify the
ends are round, clean, and free of any burrs.
6. Place the grommet on the suction line of the lineset.
NOTE: DO NOT install the grommet in the door cutout at
this point. Allow sufficient distance to braze joint.
7. Connect the suction and liquid lineset tubes.
CAUTION:
It is recommended that a wet rag be wrapped around
the suction line in front of the close off plate before
applying heat. Failure to keep components cool
during brazing may result in structural damage,
premature equipment failure, or possible personal
injury.
8. Braze the individual connections with dry nitrogen flowing
through the joints.
.
for kit part numbers.
Figure 2. Loosening of Nut & Distributor Body
Carefully remove the
restrictor orifice from
the distributor body
Figure 3. Removal of Orifice
Install restrictor with
rounded end down
in the distributor
Figure 4. Restrictor Insertion into Distributor Body
COIL HEIGHT
CABINET
18"
18"
24"
18"
24"
28"
24"
28"
Table 2. Liquid Line Tube kits
LIQUID LINE
TUBE KIT
A
921824
B
921825
B
921826
C
921827
C
921828
C
921829
D
921830
D
921831
5
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