failed operation of your unit, CHECK THE FILTER(S) EVERY 3 TO 4 WEEKS. Replace filter(s) when necessary, or clean the filter(s) if you have the reusable type.
Disposable filters should be replaced by similar, new filters of the same dimensions.
Reusable, permanent filters should be washed in a solution of cold water and mild detergent, then rinsed and thoroughly dried. THE FILTER MUST BE COMPLETELY DRY BEFORE BEING REINSTALLED. To avoid prolonged shutdown of your unit while a filter is drying, you should have an extra filter on hand. This allows you to rotate between the two with minimal downtime for your comfort system. Extra filters may be purchased from your dealer.
There are no filters in the outdoor unit of a split-system. If your indoor unit is a gas or oil furnace, refer to your furnace User’s Manual for filter location and procedures for replacement or cleaning.
If your system includes an indoor fan coil unit, the filter may be located in the unit where it connects with the return-air duct or plenum. (See Fig. 5.) Remove the filter cover plate by sliding latches toward center of plate. Lift filter to clear lower flange. Filter is spring-loaded and will pop out. Reinstall filter, being certain to secure filter behind lower flange. When reinstalling cover plate, secure plate behind upper flange then slide tabs out- ward.
The indoor fan coil unit may be located in the attic. In this instance the filter could be located behind the return air grille. Access the filter by removing two screws from return air grille.
If your system includes an electronic air cleaner, refer to air cleaner user’s manual for proper filter cleaning or replacement.
INDOOR COIL
If the split-system coil has only been operated with a clean filter in place, it should require minimal cleaning.
If coil cleaning is required, call your dealer for service. It may be necessary to clean the coil with a detergent solution and rinse it with water. This could require the removal of the coil. You should not attempt this yourself.
OUTDOOR COIL
If grass clippings, leaves, shrubbery, and debris are kept away from the outdoor unit, minimal care should be sufficient to keep the system functioning properly. For proper drainage, debris must be removed periodically from the base pan. However, if the outdoor coil becomes dirty, use a vacuum cleaner with soft brush attachment to clean the exterior surface. Vacuum coil surface using an up and down motion. Be careful not to bend or damage coil fins.
If dirt is deep in the coil, contact your dealer for service. The outdoor fan motor may have to be disconnected and the top panel removed to gain access to the coil for thorough cleaning. Do not attempt this yourself.
OUTDOOR COIL—SEA COAST
If your unit is located near the ocean, special maintenance is required. Ocean mist/breeze carries salt, which is corrosive to most metals. Although your new unit is made out of galvanized metal and is protected by top-grade paint, you should take the precaution of additional maintenance which consists of period- ically washing the unit. By washing all exposed surfaces and coil
approximately every 3 months, you will be adding additional life to your unit. Consult your installing contractor for proper inter- vals/procedures for your geographic area or service contact.
UNIT SUPPORT
Your split-system outdoor unit should be maintained in a level position. If its support should shift or settle so that the unit is no longer level, you should correct the condition. Relevel it prompt- ly to assure that water drains out of the unit. If you notice that water or ice collects beneath the unit, arrange for it to be drained away from the unit.
BEFORE YOU REQUEST A
SERVICE CALL
CHECK FOR THESE EASILY SOLVED PROBLEMS:
•Check the indoor and outdoor disconnect switches. Verify that circuit breakers are ON or that fuses have not blown.
•Check for sufficient airflow. Check the air filter(s) for any accu- mulations of dirt. Check for blocked return-air or supply-air reg- isters. Be sure registers are open and unobstructed.
•Check the settings on your indoor thermostat. If you desire cooling, make sure that the temperature control selector is set below room temperature and the SYSTEM or MODE control is set to COOL or AUTO. If you require warmth, make sure that the temperature control selector is set above room temperature and the SYSTEM or MODE control is set to HEAT or AUTO. The FAN control should be set to ON for continuous blower operation or AUTO if you wish blower to function only while the heating or cooling equipment is operating.
If your comfort system still fails to operate, turn your system off and contact your servicing dealer for troubleshooting and repairs. Specify your apparent problem, and state the model and serial numbers of your equipment. (You should have them recorded on the last page of this booklet.) With this information, your dealer may be able to offer helpful suggestions over the phone or save valuable time through knowledgeable preparation for the service call.
REGULAR DEALER MAINTENANCE
In addition to the routine maintenance that you perform, your home comfort system should be inspected regularly by a properly trained service techni- cian. The inspection (preferably each year, but at least every other year) should include the following:
•Routine inspection of air filter(s). Replacement or cleaning as required.
•Inspection and cleaning of the blower wheel, housing, and motor.
•Inspection and, if required, cleaning of indoor and outdoor coils.
•Inspection of the indoor coil drain pan, plus the primary and secondary drain lines. If supplied, the auxiliary drain pan and line should be inspected at this time. Service should include cleaning if required.
