VII. Pre-Installation Testing
Before mounting the air conditioner to the enclosure, test for proper operation to verify the shipping integrity of
the system. Pre-installation testing must be done in a non-hazardous location.
CAUTION
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.
3. Turn the electrical power on by turning the switch on the front panel to ON.
4. Observe the temperature on the digital display. The thermostat must be set a minimum of 5°F below this
temperature for the compressor to operate (the factory setting is 75°F). To adjust the thermostat, push
the SET button for two (2) seconds, then use the arrows to set the temperature. To store the new set
point value push the SET key again, or wait ten (10) seconds.
5. Verify that the evaporator blower or fan is running.
6. After one (1) minute the condenser blower and compressor should start.
7. Verify that the condenser blower is running.
8. 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.
9. Reset the thermostat to the factory setting (75°F).
10. Turn off the electrical power and disconnect the air conditioner from the power source.
NOTE:
Before shipment all Kooltronic Air Conditioners are subjected to a performance test.
CAUTION
VIII. Customer Enclosure Requirements
1
. The internal air conditioner pressurized volume is 10.8 cu. ft. as shown on the air conditioner nameplate.
This volume must be added to the customer enclosure volume for proper selection of the
Purge/Pressurized Control System.
Air conditioner air leakage is 0.4 CFM at pressure 0.5 i.w.g. For other pressures see the table in
“Principles of Operation on page 6. This air leakage should also be taken into account for proper
selection of the Purge/Pressurized Control System.
2. The air conditioner must be connected to the main enclosure’s (panel’s) power, which must be de-energized
upon loss of pressure by the enclosure
Purge/Pressurized Control System.
10
The air conditioner must be standing in its 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.
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 actual weight of the unit can be
found in the Technical Data on page 14.
