Installation Instructions
Contents
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3. 4335 ZL 14 ue Ipui sanen ase 10 Aup _ uBIseq pay 1 11 4 ul pars 1669 4 210 x 2694 991 812 SHNLWHAdWAL HOOGLNO s jqeL 4335 2 15 INSTALLER PLEASE LEAVE THESE INSTALLATION INSTRUCTIONS WITH THE HOMEOWNER 708108A 708108A Replaces 7081080 Specifications and illustrations subject to change without notice and without incurring obligations Printed in U S A 08 02
4. Flex Return Duct Diameter Flex Supply Duct 1 2 12 Fitting 12 12 Figure 6 Typical Applications b The flexible ducts can be connected to the corresponding fittings with the clamps pro vided with the ducts Note All connections should be leak tight or a loss in cooling capacity will result c The flexible ducts may be cut to the re quired length see instructions packed with duct Keep all ducts as short and straight as possible Avoid sharp bends d Ducts may be spliced with sheet metal sleeves and clamps See Ducting Instal lation Accessories below e Once the inner duct is connected to the proper fitting the insulation and plastic sleeve should be pulled over the connec tion and clamped f For homes with multiple supply ducts for special applications a Y fitting is available to divide the supply air so it can be ducted to different areas of the home for more efficient cooling Note The Y fitting should be insulated for maximum performance Blower Speed The blower speed is preset at the factory for operation at the same speed for heating and cooling For optimum system performance and comfort it may be necessary to change the factory set speed To change the blower speed 1 Disconnect all electrical power to the unit and remove the service panel 2 See Figure 7 for wire color vs motor speed guide 3 Place the desired heating blower speed lead on the NO
5. K LIST The following check list should be observed prior to starting the unit 0 Is the unit level It should be level slightly slanted toward the drain for proper condensate drainage Is there free air flow to and from the condenser A one foot clearance around the coil and six foot clearance above the fan Is the wiring correct according to the wiring diagram and electrical codes Are all the wiring connections tight Check the condenser fan to make sure it turns freely C Is the overcurrent protection properly sized Is the thermostat wired correctly Is it installed in a proper location START UP PROCEDURE Set the system switch to the OFF position Dial thermostat setting as high as it will go Turn on power supply at the disconnect switch Set the system switch to ON or COOL Set the temperature setting to below room temperature Verify that the indoor blower outdoor fan and compressor are ener gized and the cooling function starts Verify that the discharge air grilles are adjusted and the system is balanced Verify that there are no air leaks in the duct work Verify that the condensate drain is properly installed and that it functions correctly Dial the thermostat higher than room tem perature The unit should stop If using a combination heating cooling ther mostat set to the HEAT position Proceed to check for correct furnace operation Verify that the furnace controls a
6. USER S MANUAL AND INSTALLATION 10 and 12 SEER Single Package Air Conditioner Single Package Air Conditioner IMPORTANT Read this owner information to become familiar with the capabilities and use of your appliance Keep this with literature on other appliances where you have easy access to it in the future If a problem occurs check the instructions and follow recommendations given If these suggestions don t eliminate your problem call your installing contractor or distributor in your area INTRODUCTION Most any air conditioner will keep you cool Our air conditioner was designed to do itefficiently Efficiency means less cost to you while keeping you comfortable WHY YOUR AIR CONDITIONER WORKS SO WELL SO QUIETLY 1 Air is cooled by a large evaporator coil Moisture is also removed from the air by this same coil Air is then delivered through the main duct via registers into your home Return air is drawn through the return register This air enters the unit passes through the evaporator coil is cooled and dehumidi fied Then the cycle begins again SECTION 1 OWNER INFORMATION OPERATING INSTRUCTIONS To Turn On Air Conditioner If you have a heating cooling thermostat 1 Set the system
7. When a home is not equipped with a make ready kit means must be pro vided to prevent simultaneous opera tion of the heating and cooling units heat cool thermostat is available for this purpose When installing this air conditioning system in conjunction with a furnace a damper must be installed in the fur nace base assembly to prevent cold air being discharged around the heat exchanger Damage to the heat ex changer and asphyxiation may occur if a damper is not installed Check with the furnace manufacturer for damper requirements Failure to install the required furnace damper may invalidate code agency listing and limited warranty on the furnace When locating the supply damper s carefully check floor joists and frame members that could interfere with the installation of the damper or flexible duct Ideally the damper should be located in the bottom of the main duct forward of center of the home at least three feet from the REGISTER wee AUTOMATIC DAMPER IS CLOSED WHEN UNIT 15 OFF Figure 5 Supply Damper nearest register The round supply opening in the slanted side of the damper should face the side of the home where the air conditioner is located To locate the center of the heat duct first cut a small hole in the fiberboard below the duct at the desired location After locating the duct center cut a hole approximately 3 4 larger than the damper opening in the fiberbo
8. ad of the area to be conditioned must be calculated and a system of the proper capacity selected It is recommended that area to be conditioned be completely insulated and vapor sealed The installer should comply with all local codes and regulations which govern the installation of this type of equipment Local codes and regulations take precedence over any recom mendations contained in these instructions Consult local building codes and the National Electrical Code ANSI Cl for special installa tion requirements The electrical supply should be checked to determine if adequate power is available there is any question concerning the power supply contact the local power company Inspecting Equipment All units are securely packed at the time of shipment and upon arrival should be carefully inspected for dam age Claims for damage apparent or con cealed should be filed immediately with the carrier INSTALLATION 1 SELECT THE BEST LOCATION FOR THE AIR CONDITIONING UNIT IMPORTANT DO NOT PLACE UNIT UNDER THE HOME Selecta solid level position preferably ona concrete slab slightly above the grade level and parallel to the home The hot condenser air must be discharged up and away from the home and if possible in a direction with the prevailing wind There shouldbe no obstructions within twelve inches of the coil which could block the movement of the condenser air Do not place the unit
9. ard Cut a 9 1 8 x 13 1 8 hole in the duct and bend over all tabs flat on the inside of the heat duct After inserting the damper into the duct bend over all tabs flat on the inside of the heat duct Seal the opening between the fiberboard and damper or flexible duct DUCTINGSYSTEM DUCT REQUIREMENTS The supply duct system including the number and type of registers will have much more effect on the performance of an air conditioning system than any other factor The duct must be sufficiently large to conduct an adequate amount of air to each register THE AIR CONDITIONING OUTPUT OF THE SYSTEM WILL NOT COOL THE HOME IF THE AIR IS LOST TO THE OUTSIDE THROUGH LEAKS IN THE DUCT SYSTEM ALSO DUCTS WHICH ARE COLLAPSED OR RESTRICTED BY FOREIGN OBJECTS WILL PREVENT ADEQUATE AIR FLOW Note For highly resistive duct systems it may be necessary to add an additional return air duct and or supply to achieve maximum perfor mance and prevent coil icing and refrigerant flood back CONNECTING THE RETURN AND SUPPLY AIR FLEXIBLE DUCTS a The supply duct for all units is twelve inches in diameter The return duct may be 12 or 14 diameter depending on unit size See Table on page 4 2 H lt A lt 2 lt gt JA Wy MULTIPLE DUCT APPLICATION SINGLE DUCT APPLICATION Description 70 12 x20 Return 1121 16 x 20 Air Filter Supply Damper or 14 Diameter
10. e of the unit opening fits between the flange and the bead Overlap the collar ends keeping the small screw holes underneath Align the holes in the crimped area and install one screw Note It may be necessary to loosen the four screws that hold the transition duct in order to install the supply fitting Re tighten when instal lation is complete Tap collar as necessary to ensure engagement with unit opening and install second screw Tighten first screw Rotate collar clockwise so joint is near three o clock position Supply Air Return Air Figure 3 Return and Supply Air Fittings RETURN DUCT The 12 return duct is installed in the same manner as the supply duct If the unit has a 14 return follow these instructions 10 5 Return Dia Dia in 14 4 4 Align the slots with the holes in the collar and install two screws Position the collar over the opening and align the four notches in the collar with the four dimples in the panel Using self drilling screws 10 16x 5 attach the collar to the rear panel 4 LOCATING AND INSTALLING THE RE TURN AIR ASSEMBLY To avoid complications locate and install the return air assembly first The return air box with grille and filter Figure 4 should not be located in heavy traffic areas like hallways or center of rooms A good spot is in a corner or under a table if a minimum two inch cl
11. earance is avail able If desired the return opening can be located inside a closet with louvered doors that have an open area equal to or greater than the 12 20 grille furnished The return air grille can be placedinthe wall of acloset andthe air ducted into the filter box through a boxed in area at the closet floor level Make sure the filter is readily accessible After determining the location of the return air opening start the installation from under the home by cutting a small hole in the fiber underboard to determine how the floor joist GRILLE FILTER RETURN AIR Figure 4 Return Air Box 4 location will affect cutting the opening needed for the box Floor joists generally are located on 16 centers leaving 14 3 8 between joists After measuring the return air box approxi mately 12 1 4 x 14 1 4 cut the hole through the floor so that the box will fit between the floor joists Care should be taken when cutting through carpeting to avoid snags In most installations it will be necessary to cut a similar hole in the fiberboard directly under the hole in the floor However if the floor is more than ten inches deep it will only be necessary to cut a hole for the collar on the return air box or for the insulated duct Set the box into the opening and fasten with screws nails the filter and return air grille in place 5 LOCATING AND INSTALLING THE SUPPLY DAMPER S CAUTION
12. es If your air conditioner still isn t working call your nearest distributor Cooling Thermostat Furance Thermostat Ro Double Throw Double Pole Switch To Air Conditioner To Furance Figure 1 Thermostat Interlock System SECTION 2 INSTALLER INFORMATION GENERAL Read the following instructions completely before performing the installation These instructions are for the use of qualified personnel specially trained and experienced in the installation of this type of equipment and related system components Some states re quire installation and service personnel to be licensed Unqualified individuals should not attempt to interpret these instructions or install this equipment The single packaged air conditioners are de signed for outdoor installation only and can be readily connected into the high static duct system of a home The only connections needed for installation are the supply and return ducts the line voltage and thermostat wiring A complete air conditioning system typically consists of Single Package Air Conditioner Home Fittings Kit e Unit Fittings Kit Thermostat The single package air conditioner is com pletely assembled factory wired and factory run tested The units are ready for easy and immediate installation PRE INSTALLATION CHECK Before any installation is attempted the cooling lo
13. gh Voltage a Install a branch circuit disconnect of ad equate size per NEC Locate the discon nect within sight of the unit b Extend leads through power wiring hole provided Connect 1 and L2 directly to the contactor See Figure 9 c Ground the air conditioning unit using the green grounding screw provided in the control panel Low Voltage a Route 24v control wires through the seal ing grommet near the power entrance b Connectthe control wires to the leads in the low voltage area See Figure 10 2 OVERCURRENT PROTECTION In general the best fuse or breaker for any air conditioner is the smallest size that will permit the equipment to run under normal use and service without nuisance trips Such a device sized properly gives maximum equipment pro tection The principal reason for specifying a time delay type is to prevent nuisance trips when the unit starts In the event that a fuse does blow or a breaker trips always determine the reason Do not arbitrarily put in a larger fuse or breaker and do not in any case exceed the maximum size listed on the data label of the unit 3 LOCATING THE THERMOSTAT Locate the thermostat away from drafts and slamming doors and place it where there is a free flow of air Mount on an inside wall approxi mately five feet from the floor Do not locate near a lamp kitchen range direct sunlight or in line with air flow from supply registers a Connect Cooling Thermo
14. hermostat may be installed Connect the thermostat to the orange low voltage wire and the W terminal on the indoor thermostat base See Figure 10 See the thermostat instructions for details on setting the outdoor thermostat 4 ELECTRIC HEAT PACKAGE OP TIONAL The air conditioner is shipped without an aux iliary electric heat kit installed If electric heat is desired an accessory Heater Kit must be field installed See Specifications Sheet for available kits and their applications Select the correct size heat package for the installation 4 Wire Heat Cool Thermostat 2 Wire Cooling Thermostat Control Wire Legend Green Blower Relay Single Stage Electric Heat Red Transformer 24V A a Yellow Cooling 1st RED RQ 4 4 RED age Brown Heating 1st 22 YELLOW Y 0 YELLOW GREEN GREEN Orange Heating 2nd G S WO BROWN BROWN ORANGE Two Stage Electric Heat A YELLOW GREEN BROWN ORANGE Outdoor Thermostat Optional Field Supplied Figure 10 Low Voltage Connections Follow installation instructions provided with each heater kit Installation is most easily accomplished before making duct or electrical connec tions The blower must be set to high speed for electric heat operation SYSTEM OPERATION 1 PRE START CHEC
15. in a confined space e If practical place the air conditioner where it and the ducts will be shaded from the after noon sun when the heat load is greatest e Try to select a site for the unit that is as close as possible to the proposed return grille location Keepin mind thatthe length of the supply and return ducts should be keptto a minimum with no sharp radiused bends 2 UNPACK THE UNIT It is recommended that the unit be unpacked at the installation site to minimize damage due to handling CAUTION Do not tip the unit on its side Oil may enter the compressor cylinders and cause starting trouble If unithas been set onits side restore to upright posi tion and do not run for several hours Then run unit for a few seconds Do this three or four times with five min utes between runs a Remove the bands from around the unit b Unfold the top and bottom cap flanges c Carefully remove the top cap and tube 6 ft Figure 2 Minimum Unit Clearances 3 INSTALL THE RETURN AND SUPPLY AIR FITTINGS ON THE UNIT The supply and return fittings are included with select models If supplied the duct fittings are shipped in the supply duct They attach to the unit openings with a flange and bead arrange ment secured with two sheet metal screws Note For ease of access install fitting before positioning unit in final location SUPPLY DUCT Position the supply duct collar if supplied so the edg
16. nd burn ers or heating elements operate correctly Instruct the owner on unit operation filter servicing and proper thermostat opera tion ue senjea 25 616 816 216 LOE 902 202 206 662 262 062 662 82 1 i a ees el ves JO Ap Moly UOHONS 5 Ld 4 pue 51 5 210 x 912 214 21 11 ________ ________ ale S ________ o S Le SUN LYHYIN L 221222 s jqeL 35 01 ue 2910 Jamo ae p amo 2q 1689 4
17. of each air conditioning season He will make sure it s working right clean or change filters and make any needed adjustments In addition follow these simple rules 1 Never run your system without filter If you do the cooling coils will get dirty and may become clogged 2 Set your thermostat at the comfort level you wish and then leave it alone Let it control the operation of the air conditioning system If you get chilly turn it up a degree at a time until comfort is restored 3 It takes longer for an air conditioner to cool your dwelling than it does for your furnace to heat it 50 don t turn the unit on and expect a dramatic drop in temperature at least not right away If yourhome is hot and humid the temperature will drop slowly 4 Check your filters every ten days sum mer to see if they are dirty To keep them clean use a mild solution of detergent and water on washable types Replace non washable filters 5 Keep your outdoor condenser coil clean You can hose it down when it gets dirty your air conditioner isn t working 1 Make sure the fuses are not blown or that your circuit breakers are on 2 See that your thermostat is set at the desired temperature and that your system s switch is on Cool 3 For free air flow make sure your return register is not covered and that the filter is clean 4 Check the outdoor condenser coil and make sure it is clean and not clogged with grass or leav
18. stat The cooling thermostat available for use with this system is equipped with a selector switch To shut down the air conditioner set the selector switch to the OFF position Connect the red and yellow wires from the unit to the R and Y terminals respectively on the thermostat subbase Connect the green wire to the yellow wire at the unit See the instruction sheet packed with the ther mostat for detailed methods of mounting Note The cooling only thermostat must be connected to an interlock switch to prevent simultaneous operation of the fur nace and the air conditioner See Figure 1 Page 2 b Connect the Heat Cool Thermostat The heat cool thermostat is equipped with a system HEAT COOL switch which pro vides a positive means of preventing simul taneous operation of the heating and cool ing units The thermostat is also equipped with an ON AUTO fan switch which allows the home owner to operate the indoor blower when air circulation is desired Connect the red yellow green and brown low voltage wires to the R or RC G and W terminals respectively on the thermo stat base The black wire is the 24 volt common required on some thermostats See thermostat instruction sheet for more detailed information Refer to furnace installation instructions for required connections and proper heat an ticipator setting when installing unit with an external furnace c If two stage heating is desired an optional outdoor t
19. switch to Cool 2 Setthe thermostat at the temperature level you desire 3 Turn power Your air conditioner should start as soon as room temperature rises above the setting on the thermostat If you have one thermostat for heating and another for cooling they must be inter locked to prevent simultaneous operation See Figure 1 1 Turn the heating thermostat to its lowest possible setting 2 If the cooling thermostat has an On Off switch turn it On 3 Set the cooling thermostat to the desired temperature 4 Turn the power on Your air conditioner should start when room temperature ex ceeds the thermostat setting To Shut Off Air Conditioner If you have a heating cooling thermostat 1 Turn the system switch to Heat or 2 Turn the thermostat to the desired heating temperature setting 3 If you are turning your air conditioner off for the winter or an extended period shut off the power to the air conditioner If you have one thermostat for heating and another for cooling they must be interlocked to prevent simultaneous operation See Figure 1 1 Turn your cooling thermostat Off or to its highest setting 2 heating thermostat to the desired temperature Ifyou are turning your air conditioner off for the winter or an extended period shut off the power to the air conditioner BEFORE YOU CALL A SERVICEMAN Let your serviceman check your system at the start
20. terminal of the blower relay Use another wire tie field supplied Wire Color Motor Speed High Low Black Red Figure 7 Motor Lead Connection to bundle the remaining motor lead up and out of the way A CAUTION To avoid personal injury or property damage make certain that the motor leads cannot come into contact with any uninsulated metal components of the unit Check all factory wiring per the unit wiring diagram and inspect the factory wiring connec tions to be sure none loosened during shipping or installation CONDENSATE DRAIN A3 4 condensate fitting extends out of the side of the unit The drain trap shipped in the electrical compartment must be installed to prevent water from collecting inside the unit Thread the elbow provided with the unit into the drain connection until hand tight Install the trap into the fitting and seal the joint Make sure it is level Route the condensate from the trap to a suitable drain Any connecting tubing or hose must have the outlet below the trap level for proper drainage WARNING Turn off electrical power before ser vicing controls Severe electrical shock may result unless power is turned off Unit must be installed in compliance with the National Electri cal Code NEC and local codes High Voltage Low Voltage Figure 8 Drain Trap Figure 9 Power Entry ELECTRICAL CONNECTIONS 1 ELECTRICAL SERVICE Hi
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