OASys OWNER’S MANUAL | www.oasysairconditioner.com | 800-537-2107 5
GETTING STARTED
THESE INSTRUCTIONS will allow you to start using your OASys immediately.
To fully understand how to benet from its features, it is important that you read the Operation section.
• Insure power is connected.
• Insure water supply is connected and turned on.
• Your HVAC installer should check to make sure that the oat arm is properly aligned to the indicated
sump water level. This oat signals the solenoid inlet valve to introduce more water into the sump. If
it has become misaligned in shipment it can cause the unit to introduce more water than is necessary.
This water will not leak or cause damage since it goes out the overow discharge but it is to a certain
degree unnecessarily wasteful.
• Press On/Off button- power light will come on.
• Use the Mode Key to select the Auto Cool mode. Display will show “AC”. Auto Cool mode instructs
the OASys to achieve the Set Temperature. Note: as the OASys nears the Set Temperature the fan
speed will decrease- this programming maximizes energy savings and prevents the unit from going on
and off at high speed.
• The Display normally shows the Room Temperature. The Display changes to Set Temperature for 4
seconds if the arrows are used or if a signal is received from the remote transmitter. Use set button
arrows on the thermostat to select the desired Set Temperature or use the remote transmitter.
• The OASys will then commence operation and will automatically go through the following steps;
Solenoid Valve will open and the sump will ll with water, after 4 minutes the circulation pump will turn
on and the heat exchanger and direct media will wet out, after two minutes the fan will come on and
the unit will begin to supply cool conditioned air. Note: a total time of 6 minutes will elapse before cool
conditioned air begins to circulate.
• If the cooler fails to operate as described in the Sequence of Operation section of this manual, refer to
Maintenance and Service.
FOR MAXIMUM COMFORT and efciency, always use the Auto Cool mode. Because OASys uses so little
energy, setting the thermostat to maintain the temperature at 72-75° will assure that the house is
comfortable during the hottest part of the day, while costing only pennies per day. Setting the thermostat
lower during sleeping hours will also improve daytime comfort by precooling the “mass” of the house.
Because cooler air is delivered during nighttime hours, nighttime cooling efciency is very high.
THE OASYS INTRODUCES a continuous supply of fresh conditioned outdoor air. Unlike conventional
air conditioners which recycle stale indoor air the OASys must have an outlet to avoid pressurizing the house.
Provide outlets where you want the conditioned air stream to ow. Outlets can be as simple as open windows
or doors or can be consist of installed up-ducts to the attic. Cooling the attic will signicantly reduce the heat
load on the rest of the house. Often overlooked but quite effective outlets are replace dampers.
NOTE: When you rst start up the OASys unit you may notice a slight odor. This odor results from the
Celdek direct cooling media and is common to all sophisticated evaporative coolers that use this high quality
material. The odor will disappear within a few hours of use. If the odor is problematic use the thermostat to
ll and drain the sump several times to condition the direct media and the heat exchanger.
It is also possible to add a scent agent of your choice at any time either by spraying directly into the intake air
stream or by adding a few drops to the sump water.
