ICP EDM Series - Page 6

REFRIGERANT LINE CONNECTIONS
4& WARNING
PERSONAL INJURY HAZARD
Failure to relieve pressure in the coil could result
in personal injury.
Wear eye protection.
Coil is factory charged with 15 psi nitrogen. Pierce
the centers of both rubber tubing plugs to relieve
pressure before removing plugs.
NOTE: Factory nitrogen charge may escape past rubber
plugs during storage. This does not indicate a leaking coil
nor warrant return of the coil.
Size and install refrigerant lines according to information
provided with outdoor unit. Coil connection tube sizes are
shown in Figure 8. Route refrigerant lines to the coil ina
manner that will not obstruct service access to the unit or
removal of the filter.
1. Remove cabinet door. Remove tubing plate with
rubber grommets and slide plate with grommets
onto the refrigerant lines (field line-set), away from
braze joints.
2. Remove rubber plugs from coil stubs using a pulling
and twisting motion. Hold coil stubs steady to avoid
bending or distorting.
3. Wrap TXV and nearby tubing with a heat-sinking
material such as a wet cloth.
4. Fit refrigerant lines into coil stubs. Wrap a heat
sinking material such as a wet cloth behind braze
joints.
NOTE: See outdoor unit Installation Instructions
regarding requirements for installation of a
filter-drier in the liquid line close to the indoor coil.
5. Braze using a Sil-Fos or Phos-copper alloy.
6. After brazing, allow joints to cool. Slide tubing plate
with rubber grommets over joints. Position tubing at
center of each grommet to ensure an air seal
around the tube (refer to Figure 9).
Figure 8 Coil Connection Tube Size (inch)
Model Size Liquid Suction
18 (1% ton) % ¥%
24 (2 ton) % ¥%
30 (2% ton) % %
36 (3 ton) % %
42 (4% ton) % %
48 (4 ton) % %
60 (5 ton) % %
Figure 9 Refrigerant Lines
RUBBER
GROMMETS
TUBING PLATE
Strainer screen is factory installed inside the liquid tube
stub (TXV tube). Leave the strainer screen in place during
installation (refer to Figure 10).
Figure 10 Strainer Screen
yo Screen
TXV
A
CAUTION
PRODUCT DAMAGE HAZARD
Failure to follow this caution may result in product
damage.
Braze with Sil-Fos or Phos-copper alloy on cop-
per-to-copper joints and wrap a wet cloth around
rear of fitting to prevent damage to TXV.
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