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STRATUS TA10 Series Industrial Air Conditioners User Manual
2nd edition, Rev. C.
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Preliminary Testing
Before installing the STRATUS system on the enclosure, operate
the unit for 20 to 30 minutes to ensure it is functioning properly.
Although the unit has been tested at the factory, internal damage,
which may have not been apparent during the unpacking
inspection, may have occurred during shipping, .
• Place the system on a solid base, such as a workbench or table.
• 1000 and 1500 BTU/H units draw external cooling air from the
bottom and must be operated elevated.
• Check that the warm air system filter is in place. Location varies
with model - see dimensional drawings.
• Check the serial number label to be sure the electric power
available to the air conditioner is the proper voltage, phase and
amperes.
• Check electric power source for proper ground wire and
neutral wire installation.
• Check to verify that the electric power is protected by an
appropriately sized fuse or circuit breaker.
• As soon as power is supplied to the system, the cool air
evaporator fan will begin to operate. The compressor and warm
air condenser fan will not operate if the room air temperature is
below 100°F. This is because the programmable controller has
a factory setpoint of 95°F plus 5°F differential parameter (Hy).
The digital display on the face of the controller will be displaying
room temperature. If the display indicates 100°F or warmer, the
snowflake status LED will display and the compressor will
operate. The warm air condenser fan will come on shortly
after the compressor, when the refrigerant pressure builds to
approximately 300 psi. If the display indicates a temperature
less than 100°F, adjust the setpoint to a temperature lower than
the room temperature in order for the compressor and warm
air condenser fan to operate. Refer to the Digital Temperature
Controller section of this manual in order to change the factory
setpoints.
• With the compressor and both fans functioning, allow the unit
to operate for 20 to 30 minutes. This will provide sufficient
time for the vapor compression system to achieve equilibrium.
Measure the cool air outlet temperature with an accurate
thermometer. This temperature should be at least 10 degrees
colder than the inlet air temperature (if the room temperature
is warmer than 70°F). Inlet air temperature will be displayed
on the programmable controller. In areas of high humidity, the
temperature difference may be less than 10 degrees.
Note: Turn the unit off if any of the equipment makes any unexpected or hard mechani-
cal noises or vibrations, and refer to the Troubleshooting Guide.
Note: If the Digital Temperature Controller displays any alarms, refer to the Digital
Temperature Controller section.
• After completing the above check points, the electrical enclosure
is ready to be prepared for the installation of the STRATUS
AC unit.
Mounting the Air Conditioner
Caution: To prevent damage to the coils, use ONLY the mounting
bolts provided with the unit.
Using the template supplied, determine where the air
conditioner is to be mounted and make sure that all required
cuts and holes will not interfere with or damage the enclosure.
There must be 5” clearance between walls / obstructions and the
air conditioner so as not to restrict the condenser supply air and
return air flow. Restricted condenser air flow will affect the air
conditioner’s performance.
Caution: If mounting the air conditioner to the enclosure door,
confirm with the enclosure manufacturer that the door’s hinges
will support the air conditioner’s added weight (see equipment
specifications). Ensure that when the door is fully open, that the
enclosure will not topple over due to the off-center load.
Mount the air conditioner high on the enclosure in order to cool
the hot air in the top of the enclosure. Position the unit where the
cold air can circulate across the width of the enclosure to cool it all
the way across.
Once proper mounting placement is determined, turn the
enclosure equipment off, if possible, to prevent damage. Drill and
cut the holes as indicated on the actual size mounting template
included in the package. Install insulation gasket as required to
ensure an air-tight closed-loop seal. Hang the air conditioner on
the Easy Hang tabs.
From inside the enclosure, use the fasteners supplied to attach the
air conditioner to the enclosure. Tighten the bolts in stages so that
there is equal pressure at all points of attachment. Ensure that these
fasteners are tight so as to prevent the unit from falling off the
enclosure. These fasteners should be checked periodically to be
sure that they have not become loose because of vibration.
Verify that the power supplied is compatible with the air
conditioner’s power requirements provided on the air conditioner
serial number label. Properly connect to a circuit with a minimum
15 amp capacity circuit breaker and proper voltage and frequency.
Please check the specification label on the unit for exact amp
rating. Test the voltage at the power source for proper polarity and
good ground.
After mounting the air conditioner, replace / close the enclosure
door and start air conditioner; test for air leaks to assure a
proper closed air loop seal, and run-test the unit to assure proper
operation after mounting. If any cold air leaks are found, check
for proper mounting and apply silicone-free Lexel sealer if leaks
persist. Check that the air conditioner’s condenser inlet air filter is
installed properly and make sure it is cleaned regularly.
