Step 2 - Rig And Mount The Unit - Carrier 38AF Series Installation Manual

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Step 2 – Rig and mount the Unit
Be sure unit panels are securely in place prior to
rigging.
RIGGING – These units are designed for
overhead rigging only. For this purpose, the
transverse base channels extend beyond the
sides of the unit, with holes provided in the end
plates to attach cables or hooks. Rig with top
skid packaging assembly in place to prevent
unit damage by the rigging cable. As further
protection for the coil faces, plywood sheets
can be placed against the sides of the unit,
behind the cables. Run the horizontal is not
less than 45 degrees. Raise and set the unit
down carefully.
If it is necessary to roll the unit into position,
mount the unit on longitudinal rails, using a
minimum of 3 rollers. Apply force to the rails,
not the unit. If the unit is to be skidded into
position, place it on a large pad and drag it by
the pad. Don not applies any force to the unit.
Rise from above to lift unit from the rails or pad
when unit is in final position.
INSTALL FILTER DRIER (S) AND MOISTURE INDICATOR (S) — Every unit should have a filter drier
and liquid-moisture indicator (sight glass). In some applications, depending on space and convenience
requirements, it may be desirable to install 2 filter dryers and sight glasses. One filter drier and sight
glass may be installed at A locations in Fig. 4. Or, 2 filter dryers and sight glasses may be installed at B
locations.
Select the filter drier for maximum unit capacity and minimum pressure drop. Complete the refrigerant
piping from indoor unit to outdoor unit before opening the liquid and suction lines at the outdoor unit.
Product Development Dept.
07/2005
Fig.4 - Location of Slight Glass
COMPRESSOR MOUNTING –As shipped, the
compressor is held tightly in place by self-
locking bolts.
Before starting unit, loosen self-locking
bolts until the snubbed washer can be
moved sideways with finger pressure. Do
not remove shipping bolts. See Fig.3.
Fig. 3 — Compressor Mounting
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