Rheem RAPM-JAZ User Instructions - Page 2

The compressor motor is in a sealed system so it does not require lubrication. 5. If the indoor blower assembly is belt driven, periodically check the system for belt tension and condition. Turn thermostat system for belt tension and condition. Turn thermostat system switch off and disconnect power to indoor unit. Depress the belt midway between the two pulleys. The belt should deflect approximately 3⁄4 of an inch at this position. Also check for cracks in the belt. The belt should be replaced if wear is indicated. If in doubt, call your servicing contractor. When the check is completed, restore main power to indoor unit and reset the thermostat system switch to the on position. 6. If your outdoor unit is equipped with an external manual high pressure switch reset button, have your servicing contractor familiarize you with its location. Many models have compressors equipped with internal pressure relief valves using an automatic reset feature eliminating the need for an external control. This high pressure switch or the relief valve will open under excessive high pressure to protect the compressor. Some models with internal relief valves will require power interruption prior to resetting itself. The high refrigerant pressure may be due to a temporary condition, so if your unit is equipped with a reset button you may reset it as required. However, If the problem persists, refer to item 8, and/or refer the problem to your servicing contractor. 7. If the condenser coil is allowed to become restricted by dirt, lint, paper, grass clippings, leaves, etc., the system efficiency will suffer and abnormally high refrigerant operating pressures will result. To correct this condition, be sure to first cut off power to the unit, and then clean such material from the condenser coil and cabinet. Using a garden hose with a nozzle can be effective in cleaning the condenser coil, but the water should be sprayed from the inside to outside of the coil in the opposite direction from the normal airflow when the condensing unit is operating. 8. If you know or suspect that the compressor in the outdoor section is not working, you should place the thermostat system switch on the thermostat subbase to the off position. This will stop the operation of the outdoor unit. 9. If you suspect that a problem has developed with your system and before you advise your servicing contractor, we suggest you check the following service hints: Problem - Remedy No Cooling 1. Set thermostat correctly. Return system switch to the off position, wait 5 minutes before returning system switch to cool position. 2. Reset high pressure switch on outdoor unit. 3. Check fusing or circuit breakers serving outdoor and indoor units. 4. Call servicing contractor. Insufficient cooling - Unit operates continuously 1. Check air filters. 2. Check for blocked return air system. 3. Check to see if supply registers have been closed. 4. Check for open doors and windows. 5. Call your servicing contractor. Please do not attempt any servicing operation with which you are not familiar or experienced unless you are advised by your servicing contractor of the proper procedures. Thank you. Now relax and enjoy the cool air. Protecting Equipment From The Environment The metal parts of this unit may be subject to rust or deterioration in adverse environmental conditions. This oxidation could shorten the equipment's useful life. Salt spray, fog or mist in seacoast areas, sulphur or chlorine from lawn watering systems, and various chemical contaminants from industries such as paper mills and petroleum refineries are especially corrosive. WARNING: DISCONNECT ALL POWER TO UNIT BEFORE STARTING MAINTENANCE! 1. Avoid having lawn sprinkler heads spray directly on the unit cabinet. 2. Frequent washing of the cabinet, fan blade and coil with fresh water will remove most of the salt or other contaminants that build up on the unit. 3. Regular cleaning and waxing of the cabinet with a good automobile polish will provide some protection. 4. A good liquid cleaner may be used several times a year to remove matter that will not wash off with water. Several different types of protective coatings are offered in some areas. These coatings may provide some benefit, but the effectiveness of such coating materials cannot be verified by the equipment manufacturer. The best protection is frequent cleaning, maintenance and minimal exposure to contaminants. CM 1090