e. Water Connection for Water-Cooled (SWAC) Models – Water-cooled units are
equipped with two brass female ½-inch pipe thread connections located on the
lower left corner of the back panel, except for 10-ton units which have 4 female
connections. Use a proper sized wrench to connect either hard piping or the
optional high-pressure line set. Apply Teflon tape to the thread for a good seal.
Water pressure should be limited to 150 PSI and should be between 40 and 85
degrees F. If the water supply is interrupted the unit will shut down and go into
alarm “AL” mode.
f. Flexible Line Set Connection for Split-System (SPLAC) Models – Split-
systems units are supplied with a 20-foot pre-charged self-sealing refrigerant line
set, which is used to connect the cold air evaporator to the condenser section.
Be sure not to kink the line set by making sharp bends, which will block the gas
flow. There are two types of coupling, which are located on the lower center
back panel of the unit sections. For units sized 1.5-ton and under there is a lever
connection into the evaporator and two female coupling for the condenser. For
units 2.5-ton and above there are 4 female couplings, two for the condenser and
two for the evaporator. For permanent application using the substituted rolled up
copper line set, a qualified technician should perform installation, avoiding any
kinks in the line set. The following steps should be followed for hook up: 1)
Remove the line set from the box and lay it out flat making sure that the
connections match the color codes on the units and that the lever type, if
equipped, has the lever on the top side. 2) To connect the coupling type fitting,
make sure that the female swivel and male threaded fittings are clean and free
from debris. Connect the female swivel to the male threaded fitting by holding
the line set in one hand while threading the couple on with the other hand. You
will have to apply pressure to the fitting to make the connection. Be sure not to
cross thread the fittings. Tighten the fitting with the appropriate wrench, until the
fitting just barely bottoms out on the male fitting for a snug, but not tight fit. Do
not over tighten the fittings!!! It is better to be a quarter-turn too loose than too
tight. 3) For units with the lever-type connection pull the lever back until it is
positioned in the up position. Hold the fitting in one hand and pull back on the
black plastic sleeve. While holding this sleeve back, gently push the connector
onto the male fitting on the evaporator. You may have to gently rock it to insure
that it is totally inserted into the coupling. Push the sleeve toward the unit. It
should go in completely. Gently pull on the line set to assure that it has engaged
properly. When you are confident that the sleeve is locked in place, push the
lever back to its closed position until it stops, completing your refrigeration
connection. Now insert the electrical fitting into the female opening just above
the refrigeration connections on the condenser and evaporator sections.
(Multiple disconnections may result in a loss of refrigerant.) 4) Attach the
electrical connection to the underside lip above the fittings, which provides power
to the condenser.
3. OPERATIONAL SAFEGUARDS
Read the following safeguards carefully before installing the unit:
a. Do not operate or install your KwiKool unit in a potentially explosive, combustible,
or corrosive gas atmosphere.
b. Keep your KwiKool unit away from flammable materials and other sources of
heat.
c. To avoid electrical shock keep your KwiKool unit away from direct contacts with
water and any liquids and do not touch your unit with wet hands.
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