7
line Connections:
11. Cut the line set tubing to the proper
length. Be sure that the tubing has been
sized in accordance with the outdoor unit
specifications.
12. Inspect both refrigerant lines. The ends of the
lines must be round, clean, and free of any
burrs.
13. Insert the line set tubes into the coil tube
stubs until they bottom out.
Note:
On models which use a TXV, it is
recommended to wrap a wet rag around the
suction line between the sensing bulb and
the line set braze joint before applying any
heat.
14. Braze the individual connections with dry
nitrogen flowing through the joint to eliminate
internal oxidation and scaling.
15. Check the assembly for leaks.
16. On horizontal applications of models with
TXV valve, re-position the sensing bulb on
the suction line so it is in the 4 o'clock position
on the suction tube.
6. COMPlETING THE INSTAllATION
CAUTION:
The indoor coil must be checked to
ensure a level installation. Failure to do
so may result in improper condensate
disposal, causing structural damage,
premature equipment failure, or pos-
sible personal injury.
Condensate Drain:
1. Thread the 3/4" drain fitting (included) into
the lowest tapped hole on the condensate
pan. Hand tighten the fitting. If a different
configuration is required, use only PVC or
similar material for the fitting.
NOTE:
Overtightening the fitting may crack
the drain pan and create a condensate
leak.
2. Slip the drain line over the end of the fitting,
add the clamp provided and run to a suit
-
able drain. Avoid bending or pinching of the
line.
3. During the system checkout, inspect the
drain line and connections to verify proper
condensate disposal.
Figure 9. Wrenches on
Distributor Body and Assembly Nut
Figure 11. Restrictor
Insertion in Distributor Body
Air Filter —
Air filters are not provided as an
integral part of this coil, however, a filter must
be installed upstream of the coil and inspected
frequently. When the filter becomes clogged
with dust or lint, it should be replaced (dispos-
able type) or cleaned (washable type). The filter
should be inspected and replaced or cleaned at
least twice during the year, generally at the start
of each heating and cooling season.
Figure 10. Removal of Orifice