A/C, Single Pack P3RX Series - eNora
Contents
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4. _ _ Shaded Boxes indicate flooded conditions Rated Design Values Suction Pressure will be lower than design value if indoor air flow entering dry bulb or entering wet bulb temperatures are lower than design Discharge temperatures greater than charted values indicate an undercharged system 14 INSTALLER PLEASE LEAVE THESE INSTALLATION INSTRUCTIONS WITH THE HOMEOWNER 707633C Replaces 707633B Specifications and illustrations subject to change without notice and without incurring obligations St Louis MO NORDYNE 707633C Printed in U S A 4 99
5. equipment protection 8 Figure 8 Power Entry 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 Mounton an inside wall approximately 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 Thermostat 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 Connectthe 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 thermostat for detailed methods of mounting NOTE The cooling only thermostat must be connected to an interlock switch to prevent simultaneous operation of the furnace and the air conditioner See Figure 1 b Connect the Heat Cool Thermostat The heat cool thermostat is equipped with a system HEAT COOL switch which provides a positive means of preve
6. for a few seconds Do this three or four times with five minutes between runs Remove the plastic bands from around the unit Unfold the top and bottom cap flanges c Carefully remove the top cap and tube 2 SELECT THE BEST LOCATION FOR THE AIR CONDITIONING UNIT See Figure 2 Selecta solid level position preferably on aconcrete 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 in a confined space fpractical place the air conditioner where it and the ducts will be shaded from the afternoon sun when the heat load is greatest Try to select a site for the unit that is as close as possible to the proposed return grille location e Keepin mind thatthe length of the supply and return ducts shouldbe keptto a minimum with no sharp radiused bends 6 ft 7777 fff MAVI T 12 Figure 2 Minimum Unit Clearances Supply Air Return Air GRILLE FILTER RETURN AIR Figure 3 Return and Supply Air Fittings 3 INSTALL THE RETURN AND SUPPLY AIR FITTINGS ON THE UNIT See Figure 3 The sup
7. location After locating the duct center cut a hole approximately 3 4 larger than the damper opening in the fiberboard 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 DUCTING SYSTEM 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 performance 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 5 b The flexible ducts can be connected to the corresponding fittings with the clamps provided with the ducts Note All connections sho
8. Ee EU E Or RR eras 13 14 SECTION 1 OWNER INFORMATION OPERATING INSTRUCTIONS To Turn On Air Conditioner If you have a heating cooling thermostat 1 Set the system switch to Cool 2 Set the thermostat at the temperature level you desire 3 Turn the power on 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 interlocked 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 Turnthe power on Your air conditioner should start when room temperature exceeds the thermostat setting To Shut Off Air Conditioner If you have a heating cooling thermostat 1 Turn the system switch to Heat or Off 2 Turn the thermostat to the desired heating temperature setting 3 Ifyou 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 simulta neous operation See Figure 1 1 Turn your cooling thermostat Off orto its highest setting 2 Turn the heating thermostat to the desired temperature 3 If you are turning your air conditioner off for the winter
9. RATURE F 70 __ 0 5 w5 Suct Press 1 183 141 196 142 76 185 155 78 189 158 216 218 82 221 84 88 90 2 1 2 Ton OUTDOOR TEMPERATURE F 70 Suct Press Dis Press Dis Temp Dis Press Dis Temp Dis Press Dis Temp 190 p 193 152 207 3Ton OUTDOOR TEMPERATURE F T gt J o T gt o Suet Press Dis Temp Dis Temp Dis Temp 177 L 180 161 198 200 166 Note All pressures are listed in psig and all temperatures in F ________ Shaded Boxes indicate flooded conditions Rated Design Values Suction Pressure will be lower than design value if indoor air flow entering dry bulb or entering wet bulb temperatures are lower than design Discharge temperatures greater than charted values indicate an undercharged system 13 P3RX Refrigerant Charging Tables 3 1 2 Ton OUTDOOR TEMPERATURE 105 zm OUTDOOR TEMPERATURE 100 OUTDOOR TEMPERATURE 161 Note All pressures are listed in psig and all temperatures in F
10. USER S MANUAL AND INSTALLATION INSTRUCTIONS P3RX Series Export Models Single Package Air Conditioner PERRET EER 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 NORDYNE air conditioner was designed to doit efficiently Efficiency means less cost to you while keeping you comfortable WHY YOUR NORDYNE AIR CONDITIONER WORKS SO WELL SO QUIETLY 1 Airis cooled by a large evaporator coil Moisture is also removed from the air by this same coil 2 Airisthen delivered through the main duct via registers into your home 3 Returnairis drawn through the return register 4 This air enters the unit passes through the evaporator coil is cooled and dehumidified Then the cycle begins again TABLE OF CONTENTS eee fats tos atl t 3 Operating
11. e all the wiring connections tight Check the condenser fan to make sure it turns freely Is the overcurrent protection properly sized Is the thermostat wired correctly Is it installed in a proper location M Oo 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 Setthe system switchto ON or COOL Setthe temperature setting to below room temperature Verify that the indoor blower is energized and that the compressor and outdoor fan are operating 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 temperature The unit should stop If using a combination heating cooling thermostat set to the HEAT position Proceed to check for correct furnace operation Verify that the furnace controls and burners or heating elements operate correctly Instruct the owner on unit operation filter servicing and proper thermostat operation uBiH Aroyseg piel jeng 4oysedey 4eM0 g uonoeuuoo sejeoipu 1028 u02 25
12. ed 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 itis level Route the condensate from the trap to a suitable drain Any connecting tubing or hose must be below the trap level for proper drainage WARNING Turn off electrical power before servicing controls Severe electrical shock may result unless poweris turned off Unit must be installed in compliance with the National Electrical Code NEC and local codes ELECTRICAL CONNECTIONS 1 ELECTRICAL SERVICE High Voltage a Install a branch circuit disconnect of adequate size per NEC Locate the disconnect within sight of the unit b Extendleadsthrough power wiring hole provided Connect L1 and L2 directly to the contactor See Figure 8 For 3 Phase models connect L1 L2 and L3 directly to the 3 pole contactor c Groundtheairconditioning unit using the green grounding screw provided in the control panel Low Voltage a Route24vcontrol wiresthrough the sealing grommet near the power entrance b Connect the control wires to the leads in the low voltage area See Figure 9 2 OVERCURRENT PROTECTION In general the best fuse or breaker for any air conditioner is the smallestsize that will permit the equipment to run under normal use and service without nuisance trips Such a device sized properly gives maximum
13. lace 5 LOCATING AND INSTALLING THE SUPPLY DAMPER S See Figure 5 CAUTION When a home is not equipped with a make ready kit by the manufacturer means must be provided to prevent simultaneous operation of the heating and cooling units A heat cool thermostat is available for this purpose When installing this air conditioning system in conjunction with a furnace a damper must be installed inthe furnace base assembly to prevent cold air being discharged around the heat exchanger Damage to the heat exchanger 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 REGISTER AUTOMATIC DAMPER IS CLOSED WHEN UNIT IS OFF Figure 5 Supply Damper When locating the supply damper s carefully check floor joists axles wheels 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 nearestregister The round supply opening inthe 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
14. nd 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 clearance is available 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 x 20 grille furnished The return air grille can be placed in the wall of a closet and the 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 inthe fiber underboard to determine how the floor joistlocation 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 approximately 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 mostinstallations 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 or nails Put the filter and return air grille in p
15. nits are ready for easy and immediate installation PRE INSTALLATION CHECK Before any installation is attempted the cooling load of the area to be conditioned mustbe calculated and a system of the proper capacity selected It is recommended that the 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 recommendations contained in these instructions Consult local building codes and the National Electrical Code ANSI Cl for special installation requirements The electrical supply should be checked to determine if adequate power is available If there is any question concerning the power supply contact the local power company IMPORTANT DO NOT PLACE UNIT UNDER THE HOME Inspecting Equipment All units are securely packed at the time of shipment and upon arrival should be carefully inspected for damage Claims for damage apparent or concealed should be filed immediately with the carrier INSTALLATION 1 UNPACK THE UNIT It is recommended that the unit be unpacked at the installation site to minimize damage due to handling A CAUTION Do not tip the unit on its side Oil may enter the compressor cylinders and cause starting trouble If unit has been set on its side restore to upright position and do not run for several hours Then run unit
16. nting simultaneous operation of the heating and cooling units The thermostat is also equipped with an ON AUTO fan switch which allows the home ownerto operate the indoor blower when air circulation is desired Connect the red yellow green and brown low voltage wires to the R or RC Y G and W terminals respectively onthe thermostat base See thermostat instruction sheet for more detailed information Refer to furnace installation instructions for required Control Wire Legend 4 Wire Heat Cool Thermostat 2 Wire CoolingThermostat Green Blower Relay Thermostat Air Conditioner Thermostat Air Conditioner R Q4 R Red Transformer 24V R S RED R S RED Y G4 R veLLow Y H YELLOW Yellow Cooling 1st Stage OH R GREEN GREEN Brown Heating 1st Stage g w QGd R BROWN BROWN Figure 9 Low Voltage Connections connections and proper heat anticipator setting when installing unit with an external furnace SYSTEM OPERATION 1 PRE START CHECK LIST The following check list should be observed prior to starting the unit Is the unit level It should be level or 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 Ar
17. 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 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 Neverrun 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 heatit So don tturnthe unit on and expect a dramatic drop in temperature at least not right away If your home is hot and humid the temperature will drop slowly 4 Check your filters every ten days in summer 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 If 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 atthe desired temperature and that your system s switch is on Cool 3 For free air flow make sure your return register is n
18. ot covered and that the filter is clean 4 Check the outdoor condenser coil and make sure itis clean and not clogged with grass or leaves If your air conditioner still isn t working call your nearest distributor Cooling Furance Thermostat Thermostat Q 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 require 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 designed for outdoor installation only and can be readily connected into the existing high static duct system of a manufactured home The only connections needed for installation are the supply and return ducts the line voltage and thermostat wiring A complete air conditioning system consists of Single Package Air Conditioner Manufactured Home Fittings Kit Unit Fittings Kit Thermostat The single package air conditioner is completely assembled factory wired and factory run tested The u
19. ply and return fittings are shipped in the supply duct They attach to the unit openings with a flange and bead arrangement secured with two furnished screws Note For ease of access install fitting before positioning unit in final location SUPPLY DUCT Position the supply duct collar so the edge 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 installation 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 RETURN DUCT The 12 return duct is installed in the same manner as the supply duct If the unit has 14 return follow these instructions Return Dia in Figure 4 Return Air Box Align the slots with the holes in the collar and install two screws Positionthe 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 RETURN AIR ASSEMBLY See Figure 4 To avoid complications locate and install the return air assembly first The return air box with grille a
20. uld be leak tight or a loss in cooling capacity will result c The flexible ducts may be cut to the required 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 Installation Accessories below e Once the inner duct is connected to the proper fitting the insulation and plastic sleeve should be pulled over the connection and clamped f For double wide homes or 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 Running a furnace with a damaged heat exchanger could cause a fire or asphyxiation DOUBLE WIDE APPLICATION o z lt q l Q lt gt H Description 12 x 20 Return Air 12 Diameter Flex Supply Duct 12 x 12 x 12 Y Fitting 16 x 20 Air Filter Supply Damper 12 or 14 Diameter Flex Return Duct SINGLE WIDE APPLICATION Figure 6 Typical Applications Figure 7 Drain Trap CONDENSATE DRAIN SEE FIGURE 7 A 3 4 condensate fitting extends out of the side of the unit The drain trap shippedin the electrical compartment must install
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