Owner’s Manual
Page - 7 - of 22
Important Facts
To better protect your investment and to eliminate unnecessary service calls, familiarize yourself with the following:
Your Coolerado system should never be operated without a clean air filter properly installed. Plan to inspect the filter
monthly. Since the unit uses 100% outdoor air, the filters will need to be changed more often than standard HVAC systems
that do not use 100% outdoor air.
A clogged air filter will increase operating costs by reducing efficiency and could potentially impact system durability.
Supply-air and return-air registers should not be blocked. Drapes, furniture, and machinery are some of the items
commonly found obstructing registers. Restricted airflow lessens the unit’s efficiency and life span.
The unit must have unrestricted airflow. Do not cover the unit, lean anything against it, enclose it or stand on it. Do not
allow grass clippings, leaves, or other debris to accumulate around or on top of the unit. Maintain a 24-inch (600 mm)
minimum clearance between the outdoor unit and tall grass, vines, shrubs, etc.
Your indoor thermostat is the control center for your Coolerado system. You should familiarize yourself with its proper
operation and comfort settings.
Warning: Attempting to control the system by other means—for instance, switching the electrical supply power ON and
OFF—may cause damage to the unit, excessive soap use, bubbles every time it comes on, drying out and scale buildup in
the HMX’s.
Periodically inspect the systems water supply. Ensure that the systems water supply valve is fully open and that the inline
water filtration cartridge is clean and free of debris. Depending on the water used the filter cartridge can generally be
changed annually.
The unit must have an adequate supply of fresh potable water in the range of 25 to 80 psi dynamic pressure (172 to 552
kPa), when the water is on. A pressure less than 25 psi (172 kPa) will not allow the unit to operate. Pressures greater than
80 psi (552 kPa) could damage the unit and void the warranty.
Hard Water; see Water Quality below, (must be treated with a sodium-based water softener).
The unit must remain level and well supported for proper operation.
Keep any protective intake or working air protective screens free of debris.
Seasonal start up and shutdown procedures must be performed on your Coolerado System before and after the cooling
season.
Your new system uses a surfactant fluid, liquid dish washing soap, to wet out the heat exchanger media. Once the heat and
mass exchangers are wetted out they will stay wet as long as they have adequate water; no additional surfactant is needed
unless dried out. Drying out for winter shutdown is planned however there could be other instances that cause the HMX’s
to dry out such as defective water solenoid, pressure regulator or water control board. Inspections of the surfactant level
may be needed before wetting out the unit.
Note: Multiple power failures or power turning off and on will cause the surfactant pump to run depleting the surfactant.
Be sure to contact your servicing dealer for any questions or concerns about performing the recommended preventative
maintenance, or seasonal shutdown/startup procedures.
Follow all safety precautions outlined in the installation manual prior to performing any procedure.
Preventative Maintenance
Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit.
Recognize safety information, symbols and words:
DANGER! – Identifies serious hazards which will result in severe personal injury or death.
CAUTION! – Identifies unsafe practices which would result in minor personal injury, poor unit performance, product
damage and/or property damage.
NOTE! – Highlights suggestions which will result in enhanced installation, reliability, or operation.
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