@ OWNER’S MANUAL 16 SEER 2 TO 5 TONS AIR CONDITIONING UNIT SPLIT-SYSTEM COOLING CONTENTS CONGRATULATIONS. . . . . . . . . . . . . . . 2 Y2K COMPLIANCE. . . . . . . . . . . . . . . . 2 THERMOSTATS . . . . . . . . . . . . . . . . . . . 2 COOLING AND HEATING . . . . . . . . . . 2 FAN OPERATION . . . . . . . . . . . . . . . . . 2 START-UP . . . . . . . . . . . . . . . . . . . . . . . . 3 POWER FAILURE. . . . . . . . . . . . . . . . . 3 SYSTEM OPERATION . . . . . . . . . . . . . . 3 MANUAL CHANGE-OVER THERMOSTAT . . . . . . . . . . . . . . . . . . . 3 ELECTRONIC THERMOSTAT . . . . . . . 3 CARE OF SYSTEM . . . . . . . . . . . . . . . . . 3 COIL CARE . . . . . . . . . . . . . . . . . . . . . . 4 CARE OF FAN MOTORS . . . . . . . . . . . 4 SERVICE CALLS . . . . . . . . . . . . . . . . . 4 MODELS: FILTER CARE . . . . . . . . . . . . . . . . . . . . 4 CLEARANCES . . . . . . . . . . . . . . . . . . . 4 PARTS INFORMATION. . . . . . . . . . . . . 4 COMFORT ASSURANCE. . . . . . . . . . . 4 EFFICIENCY DO’S & DONT’S . . . . . . . . 4 035-14510-000 REV A Form 550.37-O4Y (699) H4TS024 H4TS030 H4TS036 H4TS048 H4TS060 035-14510-000 REV A (699) 550.37-O4Y C ongratulations . . . On your purchase of one of the most versatile comfort conditioning systems available in the air conditioning industry. This Stealth series high efficiency system has been precision designed, manufactured of high quality materials and has passed many vigorous inspections and tests to ensure years of satisfactory service. This booklet is meant to increase your understanding of your system, tell you how to operate it efficiently and how to obtain the greatest measure of comfort at the lowest operating expense. Please read this booklet thoroughly. We appreciate your interest in our products and your decision to purchase our system. Enjoy your comfort. Y2K COMPLIANCE All York thermostats and system control boards for the Stealth™ series are Y2K compliant. THERMOSTATS YOUR KEY TO COMFORT Though thermostats may vary widely in appearance they are all designed to perform the same basic function, to control the operation of your air conditioning system. Regardless of size or shape, each thermostat will feature a temperature indicator; a dial, arm or push button for selection of the desired temperature; a fan switch to choose the indoor fan operation; and a comfort switch for you to select the system mode of operation. Your new Stealth unit will require a twostage thermostat for optimum efficiency and energy savings. York has tested and certified the Enerstat ® SMS-1 and Honeywell ® T8624D as the best models for your new comfort system. Please be aware that many different thermostats operate on batteries or “power stealing” principals. York can not support such models to be trouble free when used with the Stealth series units. The following illustrations and discussion will aid you to determine which type of thermostat you have for your system. A complete operating instruction is provided by the manufacturer for each thermostat. Familiarize yourself with its proper operation to obtain the maxium comfort with a minimum of energy consumption. 2 COOLING ONLY If your air conditioning system is designed to provide only cooling, with no capability for heating operation, a two-stage cooling only thermostat, with a manual, two-position “Cool” and “Off” comfort switch is all that is required for system operation. NOTE: If you have an independent heating system (with a separate thermostat), always be sure the heating control is turned “Off” before turning on the cooling system. COOLING AND HEATING FIGURE 1: PROGRAMMABLE ELECTRONIC THERMOSTAT If your system has been designed to allow both cooling and heating operation, you may have either a manual change-over type, or a programmable electronic type thermostat with 2-stages of cooling and 2-stages of heat. MANUAL CHANGE-OVER Manual change-over simply means that the comfort switch must be manually positioned every time you wish to switch from the cooling to heating or heating to cooling modes of operation. PROGRAMMABLE ELECTRONIC THERMOSTATS The computerized electronic thermostat is actually a sophisticated electronic version of a manual change-over type. This thermostat includes features which allow “set-back” temperature variations for periods of sleep, or while you are away during the day, and means energy savings for you. The thermostat also features a digital clock. FIGURE 2: PROGRAMMABLE ELECTRONIC THERMOSTAT FAN OPERATION SELECTION A multi-position fan switch allows you to choose the type of fan operation of the indoor fan. AUTO With the thermostat fan switch set to “AUTO”, the fan will run intermittently as required for either heating or cooling. This position will provide the lowest operating cost. If you purchased one the of the York thermostats, they have an Unitary Products Group 035-14510-000 REV A (699) 550.37-O4Y Intelligent fan mode which continually circulates the air during occupied modes or when you are at home, and can cycle the fan during unoccupied mode or during the night while you sleep to further conserve energy. NOTE: if your cooling and heating temperature adjustments are separate, be sure to set both. ON 3. Move the comfort control switch to the desired mode of operation (Cooling or Heating) found on your particular thermostat. CONTINUOUS FAN OPERATION: With the thermostat fan switch set to “ON”, the indoor fan will not shut off. However, the cooling and heating systems will still operate as required by room temperatures. This provides continuous air filtering and more even temperature distribution to all conditioned spaces. FAN ONLY OPERATION: On moderate days, usually during spring and fall, when neither heating nor cooling is required, you may want to run only the fan to ventilate, circulate and filter the air in your home or building. Set the comfort control switch to “OFF” and the fan switch to “ON”. Be sure to return the switches to their original positions for normal operation. START-UP Do not operate this unit when outdoor temperatures are below 60°F as this will cause damage to the unit. The comfort control switch is assumed to be in the “OFF” position. If the main power supply to the outdoor and indoor units is off, turn the appropriate disconnects to the “ON” position. Place the system into operation as follows: 1. Set temperature adjustment to the desired temperature on your thermostat. COOLING - The higher the setting, the lower the amount of energy consumed. The National Bureau of Standards reccommends a setting of 78 °F. HEATING - The lower the setting, the lower the amount of energy consumed. Federal guidelines recommend a setting of 65 °F or lower. Unitary Products Group 2. After considering “Fan Operation Selection” above, select and set the fan operation mode you desire. POWER FAILURE When accidents, wind storms, etc. disrupt electrical power supply to your house, switch thermostat to “OFF” position. CAUTION: if the power was off more than 8 hours DO NOT switch to “COOLING” or “AUTO” until electrical power has been re-established for 8 hours. NOTE: Your Stealth high efficiency air conditioning system has many built-in features to protect the unit: 1. After a power interruption or thermostat off cycle the system will delay its start-up for five minutes to prevent the unit from short cycling. 2. Anytime the power “dips” or is lower than normal; the Comfort Enhancer Control™ will prevent the unit from operating to prevent possible damage. SYSTEM OPERATION MANUAL CHANGE-OVER THERMOSTAT COOLING YOUR HOME - With the comfort control switch in the “COOL” position, the system will operate as follows: When the indoor temperature rises above the level indicated by the temperature adjustment setting, the system will start. The outdoor unit will operate and the indoor fan will circulate the cooled, filtered air. When the room temperature is lowered to the setting selected, the system will shut off. HEATING YOUR HOME - If your system includes a heating unit and the comfort control switch is in the “HEAT” position, the system will operate as follows: When the indoor temperature drops below the level indicated by the temperature adjustment setting, the system will start. The heating system will operate and the indoor fan will circulate the filtered air. When the room temperature rises to the setting selected, the system will shut off. Whether heating or cooling, the fan will continue to operate if the fan switch was set in the “ON or Intelligent” position. The “AUTO” setting on the fan switch will allow the fan to shut off when your system does. ELECTRONIC THERMOSTAT The computerized electronic thermostat, when programmed, will function automatically to operate the system as follows: When the indoor temperature rises above the higher (COOL) setting, the outdoor unit will operate and the indoor fan will circulate the cooled, filtered air. When the room temperature is lowered to the selected level, the system will shut off. The indoor fan will either shut off or run continuously, depending upon your choice of fan switch setting. When the indoor temperature is lowered to the selected level, the system will shut off. The indoor fan will either shut off or run continuously, depending upon your choice of fan switch setting. When the indoor temperature drops below the lower (HEAT) setting, the heating system will operate, and the indoor fan will circulate the heated, filtered air. When the indoor temperature rises to the selected setting, the system will shut off. 1. Once the desired temperature is selected on the thermostat, the unit will delay its start up for five seconds to prevent unnecessary opertion of the unit as a result of thermostat “jiggling”. 2. When the system switches from first to second stage operation, there will be an five second delay during transition. CARE OF SYSTEM YORK strongly recommends regular periodic preventative maintenance on this equipment. The person most familiar with the equipment in your H.V.A.C. system is a YORK dealer. The YORK dealer can ensure your maintenance program meets the conditions of the “YORK Warranty”, maximize the efficiency of the equipment, and service your unit within the federally mandated guidelines with regard to unlawful discharge of refrigerants into the atmosphere. 3 035-14510-000 REV A (699) COIL CARE Keep the outdoor unit free of foliage, grass clippings, leaves, paper, and any other material which could restrict the proper air flow in an out of the unit. The coil may be vacuumed to remove any debris from between the fins. If the coil becomes excessively dirty, turn the main disconnect switch to “Off” and wash the coil with your garden hose. Avoid getting water into the fan motor and control box. Flush dirt from base pan after cleaning the coil. CARE OF FAN MOTORS Some fan motors are provided with lubrication ports. Inspect your indoor and outdoor units to determine whether or not lubrication ports are provided. The fan motor is shipped with an oil supply which will last for several years under normal operating conditions. After this time, each motor bearing should be oiled with 10 - 15 drops (approximately 1/4 teaspoon) of SAE 20 non-detergent electric motor oil or automobile oil. DO NOT use definite purpose oils such as sewing machine, cleaning, rust preventative, cutting, household, etc. 550.37-O4Y 2. Outdoor section for leaf or debris blockage. Eliminate problem, turn off the thermostat for 10 seconds and attempt start. Wait 5 minutes. If system does not start, call your YORK servicing dealer. FILTER CARE Inspect the air filter(s) at least once a month. If they are dirty, wash reusable filters with a mild detergent per manufacturer’s recommendations. Replace disposable filters with new filters. Install the clean filters with “air flow” arrow in the same direction as the air flow in your duct. Filters should be clean to assure maximum efficiency and ade-quate air circulation. CLEARANCES The minimum clearances shown below must be maintained should any patio or yard improvements be done around the outdoor unit. TOP 48" SIDES 12" REAR 12" FRONT * 24" * Service Access Panel your system heat or cool any faster. Adjust your thermostat to a comfortable setting and leave it there. DON’T restrict air circulation. Placing furniture, rugs, etc. in such a way that they interfere with air vents will make you system work harder to achieve a comfortable temperature level. This requires more energy, which means greater cost to you. DON’T heat or cool when you are away. If you are going to be away for a day or more, re-adjust your thermostat accordingly. Your furniture is far less demanding than you are when it comes to comfort levels. However, don’t expect the system to restore comfort conditions immediately upon returning home. It will take a little time. DON’T locate lamps or other heat-producing appliances (radios, TV’s, heaters, etc.) near your thermostat. The heat from these items will give your thermostat “false information” about the tem-perature in the room. DO select a comfortable thermostat setting, but keep in mind that moderation in temperature selection will save energy. PARTS INFORMATION SERVICE CALLS There are a few instances where the user can avoid unnecessary service calls. If unit stops functioning properly check the following items before calling your YORK servicing dealer: 1. Indoor section for dirty filter. Replacement parts are available from local YORK contractor/dealer or the nearest YORK distribution center. COMFORT ASSURANCE Special warranty packages (called Comfort Assurance) are available thru your contractor. These packages reduce the potential cost of service calls following the first year of operation on your cooling (or heating/cooling) system. SOME EFFICIENCY DO’S & DON’TS DON’T heat or cool unused household area. Reduce supply and return air flow to a minimum in areas which are not living spaces (storage rooms, garages, basements, etc). DON’T be a “thermostat jiggler”. Moving your thermostat setting will not make Heating and Air Conditioning Unitary Products Group 5005 York Drive, Norman, Oklahoma 73069 Subject to change without notice. Printed in U.S.A. DO turn on your kitchen exhaust fan when cooking and your bathroom exhaust fan when showering. Also, make sure your clothes dryer is properly vented. If these items are neglected, an excess heat and humidity condition may be created, causing your air conditioning system to run longer. DO set your thermostat a few degrees lower than normal several hours before entertaining a large group of people in a relatively small area. People give off a considerable amount of heat and moisture in a closed area. DO keep drapes and venetian blinds closed when practical. These items provide insulation against heat loss/gain. DO contact a qualified service person to make repairs or adjustments to your system. He has been trained to perform this service.
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