CAUTION
BEFORE INSTALLING THE AIR CONDITIONER, IT IS IMPORTANT THAT THESE INSTRUCTIONS BE READ AND UNDERSTOOD THOROUGHLY
KOOLTRONIC, INC. 30 Pennington-Hopewell Road Pennington, NJ 08534
609 • 466-3400 FAX: 609 • 466-1114
kooltronic.com
900-090-53 (11/18)
(CDR: 20111)
Installation Instructions
Model K3NA4C7DP52L
K3NA4C9DP52L
I. Introduction
These instructions provide you with the general information necessary for proper installation of the air conditioners.
II. Incoming Inspection
Kooltronic Air Conditioners are designed, built and packaged to withstand the shock and vibration normally associated with shipment by common carriers. Occasionally
improper handling during shipping causes damage. Such handling could include unbanding of palletized shipments, failing to respect
"This Side Up"
arrows, rough
handling, falling off conveyors, excessive vibration, crushing, etc. Therefore, a thorough inspection should be done upon receipt of all shipments. Any carton tears, dents,
scratches, loose articles or evidence of oil are signs of damage and should be noted on the Freight Bill. Cartons should be opened promptly and the units inspected for
CONCEALED DAMAGE. Kooltronic Air Conditioners must be delivered in the proper mounting position to assure that damage to the compressor has not occurred during
shipping. Any Kooltronic Air Conditioner that is delivered removed from the banded pallet, lying down or double stacked should be refused.
An immediate claim MUST be filed with the freight carrier and an inspection requested. Retain all packing materials. Kooltronic cannot assume responsibility for Consignee's
failure to file a timely freight claim.
Kooltronic Air Conditioners must be operated in their proper mounting position. If attempts are made
to operate a unit that is not in its designed mounting position, permanent compressor damage will
occur. This action will void the warranty.
If the air conditioner is mounted to the cabinet door you must be sure that the door hinges will support
the additional weight of the air conditioner. Also be certain that when the door is opened fully, the
cabinet does not become unbalanced. The weight of the K3NA4C7DP52L is 160 lbs. The weight of the
K3NA4C9DP52L is 164 lbs. Additional technical data can be found in the performance specifications
in the Operator’s Manual available online.
CAUTION
Kooltronic Air Conditioners must be standing in their proper mounting position for a minimum of
five (5) minutes prior to testing. Failure to follow this procedure will cause permanent damage to
the compressor. To avoid compressor damage do not tip the unit more than 45° from its proper
mounting position
.
III. Pre-Installation Testing
1.
The unit must sit in an upright position at a minimum room temperature of 65°F to allow the system to warm-up. This is particularly important during winter months.
2.
Refer to the nameplate for proper electrical voltage and current requirements. Connect the power cord to a properly grounded and fused electrical supply, leaving
electrical power to the unit turned off. Note the factory thermostat setting which is 75°F.
3.
Turn the electrical power on. Verify that the evaporator blower or fan is running. Condenser impeller should start immediately and after one (1) second, stop. After
three (3) to five (5) minutes the condenser impeller should start. Verify that the condenser blower or fan is running.
4
The compressor in this air conditioner is protected by a phase sequence/phase loss detector. If the compressor does not start when power is applied to the air
conditioner, check to ensure all three phases are energized. If voltage is present at all three phases, disconnect the power input and reverse two power input leads.
Reapply power and check for proper unit operation.
5.
Observe the temperature on the digital display. The thermostat must be set a minimum of 10°F below this temperature for the compressor to operate (the factory
setting is 75°F). To set the thermostat: 1) Press SET for 3 or more seconds. 2) Use UP or DOWN arrows to set the temperature. 3) Press SET again.
6.
Operate the air conditioner for approximately ten (10) minutes. During this period no unusual noise or vibration should be evident. Both the evaporator and condenser
fans or blowers should be delivering air through their respective discharge ports. The cool air discharged should be less than 70°F when the room temperature is
between 70°F and 80°F. It is normal for the condenser blower to cycle on/off during this period.
7.
If the ambient temperature is below 75°F, after fifteen (15) minutes the thermostat will shut off the compressor and condenser impeller.
8.
Turn off the electrical power and disconnect the air conditioner from the power source.
9.
If any cover plug was removed to adjust the unit, be sure to replace it in order to maintain the integrity of the closed-loop airflow system.
IV. Mounting
Kooltronic Air Conditioners have been engineered to be installed easily. To avoid damaging your air conditioner, please
read the following information before installation:
1.
It is recommended that a lift truck be used for installation.
2.
Attach the mounting hook to the enclosure using (4)
1/
4
-inch nuts. Place the air conditioner on the lift truck.
3.
Adjust the lift truck height so that the mounting hook is even with the air conditioner mounting slots.
4.
Move the air conditioner toward the enclosure panel so that the mounting hook enters the mounting slots.
5.
Slowly move the lift truck down until the hook engages with the mounting plate. Continue to lower the lift truck.
The air conditioner will hang from the mounting hook flush against the mounting panel.
6.
Insert (3)
1/
4
-inch x 1-
1/
4
-inch bolts through the holes in the mounting plate bottom flange and the enclosure panel.
Install sealing washers and nuts on each screw from inside the enclosure and tighten (see mounting drawing).
7.
Install (2)
1/
4
-inch x 1
1/
4
-inch bolts from inside of the enclosure to the top of the air conditioner (see mounting
drawing).
INSTALL THE MOUNTING HOOK TO THE
OUTSIDE WALL OF THE CUSTOMER'S
ENCLOSURE BEFORE INSTALLING A/C UNIT.
NOTE:
ENCLOSURE WALL
1/4-20 NUTS
TYP. (4) PLACES
UNIT HANGER
SHIPPED LOOSE
1/2'' X 1/2'' GASKET
1/4'' X 1-1/4'' BOLT
TYP. (2) PLACES
UNIT CAGE NUTS
TYP. (2) PLACES
TO BE MOUNTED
ON EXTERIOR OF
CUSTOMER ENCLOSURE
MOUNTING DRAWING
