Ducane (HVAC) 2HP13 User's Manual
Contents
1. Tounits installed with indoor coil combinations listed in the Air Conditioning and Refrigeration Institute ARI Directory of Certified Unitary Equipment http www aridirectory org index html EXCEPTIONS TO LIMITED WARRANTY When the outdoor unitis installed in non residential applications in these cases the compressor is warranted for five 5 years LIMITATIONS OF WARRANTIES All implied warranties including implied warranties of merchantability are hereby limited in duration to the period for which the limited warranty is given Some states do not allow limitations on how long an implied warranty lasts so the above may not apply to you The expressed warranties made in this warranty are exclusive and may not be altered enlarged or changed by any distributor dealer contractor or other person whatsoever THE COMPANY WILL NOT BE RESPONSIBLE FOR 1 Failure to start due to voltage conditions blown fuses open circuit breakers or other damages due to the inadequacy or interruption of electrical service Damage as a result of floods winds fires lightning accidents corrosive environments or other conditions beyond the control of the Company Damage or repairs required as a consequence of faulty installation misapplication abuse improper servicing unauthorized alteration or improper operation Normal maintenance as outlined in the installation and servicing instructions or owner s manual including coil cleaning filter cleaning an2. Insert tubing into swage fitting connection Wrap wet rags over valves to protect from heat Allow dry nitrogen to flow through refrigerant lines Braze joint using a suitable brazing alloy for copper to copper joints Quench the joint and tubing with water using a wet rag Leave rag on fitting body and re wet with water to help cool area ARON Leak Check Refrigeration lines and indoor coil must be checked for leaks after brazing and before evacuation The recommended procedure is to apply a trace amount of vapor refrigerant approximately two ounces or 3 psig into the line set and indoor coil then pressurize with 150 psig of dry nitrogen Use a refrigerant leak detector to check all joints The system may also be checked for leaks using a halide torch or pressure and soapy solution After completion of leak check relieve all pressure from system before evacuation Evacuating And Charging Instructions NOTE Intentional release of CFC or HCFC refrigerant to the atmosphere violates Federal Law It may also violate State and Local Codes Check all Federal State and Local Codes before proceeding These outdoor units are pre charged at the factory with adequate refrigerant to handle 15 feet of refrigerant tubing NOTE DO NOT use any portion of the charge for purging or leak testing It is mandatory that a thorough evacuation of the refrigeration lines and indoor coil be performed The liquid line and suction line service
3. a sling psychrometer 7 Compare superheat reading at service valve with the chart located on control box cover 8 If unit has a higher suction line temperature than charted temperature add refrigerant until charted temperature is reached 9 If unit has a lower suction line temperature than charted temperature reclaim refrigerant until charted temperature is reached Page 6 of 18 10 Remove charge if superheat is low and add charge if superheat is high Required Subcooling Units with Indoor TXV Units installed with TXV on indoor side require charging with the subcooling method 1 Operate unit a minimum of 10 minutes before checking charge 2 Measure liquid service valve pressure by attaching an accurate gage to service port Determine saturation temp from T P chart 3 Measure liquid line temperature by attaching an accurate thermistor type or electronic thermometer to liquid line near outdoor coil 4 Calculate subcooling saturation temp measured temp 5 Find the point where required subcooling temperature intersects measured liquid service valve pressure 6 Add refrigerant if subcooling is lower than table below Recover refrigerant if subcooling is high Heating Check Chart Procedure To check system operation during heating cycle refer to the Heating Check Chart located on back of control box cover This chart indicates whether a correct relationship exists between system operating press
4. connections are made at the line side of the contactor in the control box of the outdoor unit Follow the appropriate wiring diagram attached to inside of the access panel Proper circuit protection recommendations are indicated on Unit Rating Plate Time delay fuses are required to prevent blowing due to starting current the current in rush when equipment starts is referred to as the Locked Rotor Amps or LRA A fuse of this kind properly sized will give maximum equipment protection Use copper wire only between disconnect switch and unit Remove access panel to gain access to unit wiring Extend wires from disconnect through power wiring hole provided and into unit control box Flexible conduit is required for the swing out control box feature WARNING The unit cabinet must have an uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes Failure to follow this warning can result in an electric shock fire or death Connect ground wire to ground connection in control box for safety Connect power wiring to contactor High voltage power connections to 3 phase models is made to Pig leads with field supplied splice connectors Control Wirin The control voltage is 24 Vac NEC Class insulated 18 AWG is required for control wiring For lengths longer t
5. refrigerant tubes as directly as possible by avoiding unnecessary turns and bends 4 Leave some slack between structure and unit to absorb vibration 5 When passing refrigerant tubes through the wall seal opening with RTV or other silicon based caulk 6 Avoid direct tubing contact with water pipes duct work floor joists wall studs floors walls and any structure 7 Donotsuspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tubing 8 Ensure that tubing insulation is pliable and completely surrounds vapor tube When outdoor unit is connected to factory approved indoor unit outdoor unit contains system refrigerant charge for operation with indoor unit of the same size when connected by 15 ft of field supplied tubing For proper unit operation check refrigerant charge using charging information located on control box cover IMPORTANT Maximum liquid line size is 3 8 in O D for all residential applications including long lines Outdoor Section Zoning ordinances may govern the minimum distance the condensing unit can be installed from the property line Install on a Solid Level Mounting Pad The outdoor section is to be installed on a solid foundation This foundation should extend a minimum of 2 inches beyond the sides of the outdoor section To reduce the possibility of noise transmission the foundation slab should NOT be in contact with or be an integra
6. 2HP13 amp 2HP14 SPLIT SYSTEM HEAT PUMP INSTALLATION START UP INSTRUCTIONS HOMEOWNERS INFORMATION MANUAL These instructions must be read and understood completely before attempting installation Issue 0733 Safety Precautions 2 Electrical Connections 5 Unit Location amp Installation 2 Control aet ce rt qud e dcs 5 Rooftop Installation amp Recommendations 3 Start Up 6 Indoor Coil Piston Selection 3 Adjusting 6 Refrigeration Line 3 Defrost Systems satse a a ea Nee 7 Installation of Line Sets 4 Single Phase Wiring Diagram 9 Esak Check urere eerie 4 Phase Wiring Diagram 10 Evacuating amp 0 4 Homeowner s 15 Opening Service 5 Warranty set e toes a Ree dera 17 These units are designed for use in residential and light commercial type buildings Heat Pumps may only be installed with indoor combinations listed in the Air Conditioning and Refrigeration Institu
7. 74 100402 07 Issue 0733 Page 10 of 18 SUPERHEAT TABLES FOR CHARGING SYSTEMS WITH PISTON COILS Required Superheat for 2HP13 B L 18P 1A INDOOR WET BULB F Heating Mode Pressures 2HP13 B L 18P 1A OUTDOOR Press psig OUTDOOR F Hi CF igh Low INDOOR WET BULB F Heating Mode Pressures 2HP13 B L 24P 1A 228 220 OUTDOOR Press psig OUTDOOR Hi CF igh Low 70 65 60 211 55 202 50 194 45 185 40 178 35 171 100402 07 OUTDOOR DRY BULB TEMPERATURE Press psig High Low Issue 0733 Page 11 of 18 Required Superheat for 2HP13 B L 30P 1A INDOOR OUTDOOR DRY BULB TEMPERATURE WET BULB Heating Mode Pressures 2HP13 B L 30P 1A OUTDOOR Press psig CF Low CF 84 78 r High 181 173 High Low 181 42 ws 37 6 238 73 68 62 153 25 57 ERAI a al 52 46 25 Required Superheat for 2HP13 B L 36P 1A INDOOR WET BULB OUTDOOR DRY BULB TEMPERATURE OUTDOOR 100402 07 Issue 0733 Page 12 of 18 Required Superheat for 2HP13 B L 42P 1A INDOOR WET BULB F OUTDOOR DRY BULB TEMPERATURE OUTDOOR 6 26 INDOOR WET BULB Press psig 50 239 62 10 171 25 229 57 220 52 46 100402 07 Issue 0733 Page 13 of 18 Required Superheat for 2HP13 B L 60P 1A INDOOR WET BULB F OUTDOOR DRY B
8. Fiberglass wool may also cause respiratory skin and eye irritation To reduce exposure to this substance or for further information consult material safety data sheets available from your distributor WARNING Before installing modifying or servicing system main electrical disconnect switch must be in the OFF position There may be more than 1 disconnect switch Lock out and tag switch with a suitable warning label Electrical shock can cause personal injury or death Safety Precautions Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for brazing operations Have fire extinguisher available Read these instructions thoroughly and follow all warning or cautions attached to the unit 1 Always wear proper personal protection equipment 2 Always disconnect electrical power before removing panel or servicing equipment 3 Keep hands and clothing away from moving parts 4 Handle refrigerant with caution refer to proper MSDS from refrigerant supplier 5 Usecare when lifting avoid contact with sharp edges 100402 07 Issue 0733 UNIT LOCATION amp INSTALLATION NOTE In some cases noise in the living area has been traced to gas pulsations from improper installation of equipment 1 Locate unit away form windows patios decks etc where unit operation sounds may disturb customer 2 Ensure that vapor and liquid tube diameters are appropriate to capacity of unit 3 Run
9. OR MINIMUM CIRCUIT WITH NATIONAL AND LOCAL CODES LI COMPONENT 1 AMPACITY AND MAXIMUM OVER MPONEN Tempera CURRENT PROTECTION SIZE LINE VOLTAGE FIELD INSTALLED M H Ai frr FAN EE EE D INST VETTER RO DEFROST EE ec Hn ET TVALVE REVERSING nan Sa PRESSURE CH DEF HOS RT a 687 SWITCH LOW PRESSURE Hee Form Ne 100458 03 REV G oon Lithe U S A 100402 07 Issue 0733 Page 9 of 18 H P 3 PHASE WIRING DIAGRAM OUTDOOR CAPACITOR CHCI DEFROST CONTROL THERMOSTAT See ee ccr im s S 56 21 THERMOSTAT DEFROST AEA THERMOSTAT c dabas gr uc aa ad CEREA LI REVERSING VALVE CMCI LILL TN A LETT p LEDET fog 208 230 60 3 Pow PRESSURE L3 DELL E A SWITCH tt EQUIPMENT rd rt 7 GROUND 4 40 FOR USE WITH COPPER CONDUCTORS ONLY REFER TO UNIT RATING PLATE FOR MINIMUM CIRCUIT AMPACITY AND MAXIMUM OVER CURRENT PROTECTION SIZE SWITCH WARNING CONNECTION MUST BE JUMPERED WHEN ELECTRIC SHOCK HAZARD CAN CAUSE INJURY OR OPTIONAL SWITCH IS NOT USED DEATH UNIT MUST BE GROUND IN ACCORDANCE WITH NATIONAL AND LOCAL CODES DENOTES OPTIONAL COMPONENTS LINE VOLTAGE FIELD INSTALLEED CLASS VOLTAGE FIELD INSTALLED Supersedes New Form No 1004 58 04 zw 00004
10. ULB TEMPERATURE 3 OUTDOOR 4 Press psig CP CF 69 25 200 33 e 270 64 55 259 60 15 184 50 248 55 10 177 237 50 228 46 4i 100402 07 Issue 0733 Page 14 of 18 Homeowner s Information WARNING ELECTRICAL SHOCK HAZARD Turn OFF electric power to unit before performing any maintenance or removing panels or doors FAILURE TO DO SO COULD RESULT IN BODILY INJURY OR DEATH Heat Pump Operation Your new heat pump has several characteristics that you should be aware of e pumps satisfy heating demand by delivering large amounts of warm air into the living space This is quite different from gas or oil fired furnaces or an electric furnace which deliver lower volumes of considerably hotter air to heat the space e Do Not be alarmed if you notice frost on the outdoor coil in the winter months Frost develops on the outdoor coil during the heating cycle when temperatures are below 45 F An electronic control activates a defrost cycle lasting 5 to 15 minutes at preset intervals to clear the outdoor coil of the frost e During the defrost cycle you may notice steam rising from the outdoor unit This is a normal occurrence The thermostat may engage auxiliary heat during the defrost cycle to satisfy a heating demand however the unit will run to normal operation at the conclusion of the defrost cycle In case of extended power outage If the outdoor temperature is b
11. ce Valves After evacuation of the connecting lines remove the service valve cap and fully insert the hex wrench into the stem A back up wrench is required on the valve body to open the valve stem Back out counterclockwise until the valve stem just touches the coined edge Wrench sizes 3 8 service valve 3 16 Hex wrench 3 4 service valve 5 16 Hex wrench 7 8 service valve 5 16 Hex wrench Replace service valve cap and torque to 8 11 ft lb on 3 8 valves 12 15 ft lb on 3 4 valves 15 20 ft lb on 7 8 valves Use backup wrench on valve body when torqueing valve cap Install Electrical Accessories Refer to the instructions packaged with the accessories Electrical Connections A WARNING ELECTRICAL SHOCK HAZARD Turn OFF electric power before connecting unit performing any maintenance or removing panels or doors More than one disconnect may be required to turn off all power FAILURE TO DO SO COULD RESULT IN BODILY INJURY OR DEATH Be sure to check all local codes to determine that the unit is installed accordance with local requirements Consult the National Electric Code for wire size requirements Use 60 C wire or higher Always provide ground connections to the outdoor unit Power supply must agree with rating on unit nameplate 100402 07 Issue 0733 Provide line voltage power supply to unit from a properly sized disconnect switch Route power and ground wires from disconnect switch to unit Line voltage
12. d or replacement and lubrication Parts not supplied or designated by the Company or damages resulting from their use The Company products installed outside the United States of America and Canada Electricity or fuel costs or increases in electricity or fuel costs for any reason whatsoever including additional or unusual use of supplemental electric heat ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OH COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER Some states do not allow the exclusion of incidental or consequential damages so the above limitation may not apply to you This warranty gives you specific rights and you may also have other rights that vary from state to state 100402 07 Issue 0733 Page 17 of 18 Keep this book and your sales slip together for future reference You must provide proof of purchase or installation date for in warranty service Write down the following information about your unit to better help you obtain assistance or service if you ever need it You will need to know the complete model and serial number You can find this information on the unit rating plate Dealer Name Address Phone Number Indoor Model Number Serial Number Indoor Model Number Serial Number Installation Date 100402 07 Issue 0733 Page 18 of 18
13. de until the defrost thermostat opens or 14 minutes have passed If the jumper is not removed until after the additional 5 second period has elapsed the defrost will terminate and the test option will not function again until the jumper is removed and re applied Compressor Delay The defrost board has a field selectable function to reduce occasional sounds that may occur while the unit is cycling in and out of the defrost mode The compressor will be cycled off for 30 seconds going in and out of the defrost mode when the compressor delay jumper is 100402 07 Issue 0733 removed NOTE The 30 second off cycle is not functional when jumpering the TEST pins Time Delay The timed off delay is 5 minutes long The delay help to protect the compressor from short cycling in case the power to the unit is interrupted or a pressure switch opens The delay is bypassed by placing the timer select jumper across the TEST pins for 0 5 seconds Pressure Switch Circuit The defrost control incorporates 2 pressure switch circuits The optional high pressure switch connects to the boards HI PS terminals The low pressure switch is factory installed During a single demand cycle the defrost control will lock out the unit after the fifth time that the circuit is interrupted by any pressure switch wired to the control board In addition the diagnostic LEDs will indicate a locked out pressure switch after the fifth occurrence of an open pr
14. during an outdoor unit shutdown but it should also be used following a power outage If power has been off for over an hour and the outdoor temperature is below 50 F 10 C System should be left in the emergency heat mode at least six hours to allow the crankcase heater sufficient time to prevent compressor slugging This applies only to systems with crank case heaters Defrost System The defrost system includes two 2 components a defrost thermostat and a defrost control Defrost Thermostat The defrost thermostat is located on the liquid line between the check expansion valve and the distributor When defrost thermostat senses 29 F or cooler the thermostat contacts close and send a signal to the defrost control board to start the defrost timing It also terminates defrost when the liquid line warms up to 60 F Defrost Control The defrost control board includes the combined functions of a time temperature defrost control defrost relay diagnostic LEDs and terminal strip for field wiring connections The control provides automatic switching from normal heating operation to defrost mode and back During compressor cycle the control accumulates compressor run times at 30 60 or 90 minute field adjustable intervals If the defrost thermostat is closed when the selected compressor run time interval ends call for Page 7 of 18 defrost the defrost relay is energized and defrost begins The factory setting is 60 minutes How
15. elow 50 F and power to your outdoor unit has been interrupted for 6 hours or longer observe the following when restoring power to your heat pump system e Setthe room thermostat selector to the Emergency Heat setting to obtain temporary heat for a minimum of 6 hours This will allow system refrigerant pressures and temperatures enough time to return to a stabilized condition e n Emergency Heat mode all heating demand is satisfied by auxiliary heat heat pump operation is locked out After a 6 hour warm up period the thermostat can then be switched to the Heat setting and normal heat pump operation my resume e pumps in the cooling mode remove humidity from your home Depending on the amount of moisture in the air inside your home water will trickle from the condensate drain of the cooling coil Thermostat Operation The wall mounted thermostat controls your air conditioner thermostat is available in various configurations different manufacturers The 100402 07 Issue 0733 information below is typical for most thermostats Ask your dealer for specific information regarding the model of thermostat installed Temperature Setting Levers Most heat pump thermostats have 2 temperature selector levers one for heating and one for cooling Set the levers or dials to the desired temperature set points for both heating and cooling Avoid frequent temperature adjustment turning the unit off and back o
16. essor should be maintained with suction gas velocity Installation of Line Sets DO NOT fasten liquid or suction lines in direct contact with the floor or ceiling joist Use an insulated or suspension type of hanger Keep both lines separate and always insulate the suction line Long liquid line runs 30 feet or more in an attic will require insulation Route refrigeration line sets to minimize length DO NOT let refrigerant lines come in direct contact with foundation When running refrigerant lines through the foundation or wall openings should allow for a sound and vibration absorbing material to be placed or installed between tubing and foundation Any gap between foundation or wall and refrigerant lines should be filled with a vibration damping material CAUTION If ANY refrigerant tubing is buried provide a 6 inch vertical rise at service valve Refrigerant tubing lengths up to 36 inches may be buried without further special consideration For lengths above 36 inches consult your local distributor Before making braze connections be sure all joints are clean Before heat is applied for brazing dry nitrogen should be flowing through the tubing to prevent oxidation and scale formation on the inside of the tubing 100402 07 Issue 0733 The following is the recommended method for making braze connections at the refrigerant line connections 1 Debur and clean refrigerant tube end with emery cloth or steel brush
17. essure switch The unit will remain locked out until power to the board is interrupted then re established or until the jumper is applied to the TEST pins for 0 5 seconds NOTE The defrost control board ignores input from the low pressure switch terminals as follows During the TEST mode During the defrost cycle During the 90 second start up period and for the first 90 seconds each time the reversing valve switches heat cool modes If the TEST pins are jumpered and the 5 minute delay is being by passed the LO PS terminal signal is not ignored during the 90 second start up period Diagnostic LEDS The defrost board uses 2 LEDs for diagnostics The LEDs flash a specific sequence according to the condition Defrost Control board Diagnostic LED Mode No power to control OFF OFF Normal operation power to control Simultaneous Slow FLASH Anti short cycle oaout 0006 atternating Slow FLASH Low pressure switch fault Optional OFF Slow FLASH Low pressure switch OFF lockout Optional High pressure switch fault Optional High pressure Switch lon lockout Optional ON OFF Slow FLASH OFF Page 8 of 18 H P SINGLE PHASE WIRING DIAGRAM THERMOSTAT pm CONNECTI UMPERED WHEN OPTIDNAL 9 ICH OY USED WARNING COPPER CONDUCTORS ELECTRIC SHOCK HAZARD CAN CAUSE INJURY OR Y REFER UNIT RATING DEATH UNIT MUST BE GHOUNDED IN ACCORDANCE 1356 ELI ION PLATE F
18. ever if frost accumulation is easily cleared the optimum efficiency Setting is 90 minutes FIELD SELECT TIMING PINS TEST PINS COMPRESSOR DIAGNOSTIC LEDS DELAY PINS REVERSING VALVE 24V TERMINAL STRIP CONNECTIONS LOW PRESSURE SWITCH FACTORY SHIPPED DEFROST THERMOSTAT FACTORY SHIPPED o Wr HIGH PRESSURE SWITCI OPTIONAL F0000452 Outdoor Unit Defrost Control Board Defrost Control Timing Pins Each timing selection provides different accumulated compressor run time period for one defrost cycle This time period must occur before a defrost cycle is initiated The defrost interval can be adjusted to 30 T1 60 T2 or 90 T3 minutes The defrost timing jumper is factory installed to provided a 90 minute defrost interval If the timing selector jumper is not in place the control defaults to a 90 minute defrost interval The maximum defrost period is 14 minutes and cannot be adjusted A TEST option is provided for troubleshooting The TEST mode may be started any time the unit is in the heating mode and the defrost thermostat is closed or jumpered If the jumper is in the TEST position at power up the control will ignore the test pins When the jumper is placed across the TEST pins for 2 seconds the control will enter the defrost mode If the jumper is removed before an additional 5 second period has elapsed 7 seconds total the unit will remain in defrost mo
19. fan IF YOUR SYSTEM STILL DOES NOT OPERATE CONTACT YOU SERVICING DEALER Be sure to describe the problem and have the model and serial numbers of the equipment available If warranted replacements parts are required the warranty must be processed through a qualified distribution location Page 16 of 18 OUTDOOR EQUIPMENT LIMITED WARRANTY Not applicable outside the U S A and Canada Warrantor Allied Air Enterprises Inc 215 Metropolitan Drive West Columbia SC 29170 These Allied Air Enterprises Inc Products are available under the following names Ducane Concord GENERAL FIVE YEAR PART WARRANTY hereinafter referred to as the company warrants the product to be free from defects in material and workmanship under normal use and maintenance for a period of five 5 years in residential applications one 1 year for commercial on all components except compressors as noted below The warranty period begins on the date of original installation whether or not actual use begins on that date If the date of original installation cannot be verified the warranty begins onthe date of manufacture plus six 6 months Atthe Company s sole option a new or re manufactured part to replace any defective part will be provided without charge for the part itself PROVIDED the defective part is returned to our distributor through a qualified servicing dealer or contractor All warranty claims must be processed through a qualified distribution poi
20. han 150 feet contact your local distributor for technical service Ensure the room thermostat is properly installed per instructions shipped with room thermostat Generally the thermostat should not be exposed to sunlight drafts or vibration and should not be mounted on exterior walls Low voltage control wire connections should be made to the screw connection terminal board mounted on the defrost control as shown All low voltage control wiring must be separated from incoming power leads Page 5 of 18 Thermostat Air Handler Heat Pump 24 vac R 52 R 17 o R i GREEN 227 INDOOR FAN G MM G p rea BKT 24 TTV 16 Ir I As 1 HEAT y were exa Mw wt STAGE 2 EMERGENCY w2 RVS P A ORANGE COOLING COOLMEAT y STAGE1 n F0000453 Heat Pump Application with Electric Heat Emergency Heat heating heat pump If selector switch on thermostat is set to the emergency heat position the heat pump will be locked out of the heating circuit and all heating will be electric heat if applicable A jumper should be placed between W and E on the thermostat so that the electric heat control will transfer to the first stage heat on the thermostat This will allow the indoor blower to cycle on and off with the electric heat when the fan switch is i
21. irection of airflow Dirty filters are the most common cause of poor heating cooling performance and compressor failures Indoor Coil If the system has been operated with a clean filter in place it should require minimal cleaning Use a vacuum cleaner and soft brush attachment to remove any accumulation of dust from the top and underside of the finned coil surface However perform this maintenance only when the coil is completely dry If the coil cannot be cleaned by this method call your dealer for service It may need a detergent solution and rinsing with water for cleaning which may require coil removal You should not attempt this yourself Condensate Drain During cooling season check at least monthly for free flow of drainage and clean if necessary Condenser Coils Grass cuttings leaves dirt dust lint from clothes dryers and fall off from trees can be drawn into coils by movement of the air Clogged condenser coils will lower the efficiency 100402 07 Issue 0733 of your unit and could cause damage to the condenser Periodically debris should be brushed from the condenser coils SHARP OBJECT HAZARD Condenser coils have sharp edges Wear adequate body protection on body extremities e g gloves FAILURE TO FOLLOW THIS WARNING COULD RESULT IN BODILY INJURY Use a soft bristle brush with light pressure only DO NOT damage or bend condenser coil fins Damaged or bent fins may affect unit operation Pain
22. l part of the building foundation Page 2 of 18 Elevate Unit CAUTION Accumulation of water and ice in base pan may cause equipment damage Elevate unit per local climate and code requirements to provide clearance above estimated snowfall level and ensure adequate drainage of unit Use snow stand in areas where prolonged freezing temperatures encountered If conditions or local codes require the unit be attached to pad or mounting frame tie down bolts should be used andfastened through knockouts provided in unit base pan Roof Top Installations Mount on level platform or frame 6 inches above roof surface Place unit above a load bearing wall and isolate unit and tubing set from structure Arrange supporting members to adequately support unit and minimize transmission of vibration to building Ensure roof structure and anchoring method is adequate for location Consult local codes governing rooftop applications Roof mounted units exposed to winds above 5 mph may require wind baffles to achieve adequate defrost A sheet metal baffle should be spaced 6 1 2 from the fall of the coil The height should cover the face of the coil and the length should be 6 from the access panel NOTE Unit must be level to within 2 3 8 in ft per compressor manufacturer specifications Clearance Requirements When installing allow sufficient space for airflow clearance wiring refrigerant piping and service pr
23. n before pressures equalize puts stress on the unit compressor On heat pump systems increasing your thermostat setting by more than 2 degrees may cause supplemental heaters to turn on reducing potential energy savings Fan Switch In AUTO or INT intermittent mode the blower operates only when the thermostat calls for heating or cooling This mode is generally preferred when humidity control is a priority ON or CONT mode provides continuous indoor blower operation regardless of whether the compressor or auxiliary heat are operating This mode is required when constant air circulation or filtering is desired System Switch Set the system switch for heating cooling or auto operation The auto mode allows the heat pump to automatically switch from heating mode to cooling mode to maintain predetermined comfort settings Many heat pump thermostats are also equipped with an emergency heat mode which locks out heat pump operation and provides temporary heat supplied by the auxiliary heat Indicating Light Most heat pump thermostats have an amber light which indicates when the heat pump is operating in the emergency heat mode Temperature Indicator The temperature indicator displays the actual room temperature Fan Control For fan control your thermostat may have a Fan Selection Switch that allows you to run the fan continuously or cycle it automatically with the heating or cooling system Switch the lever to ON for c
24. n the AUTO position Add Jumper on Subbase Optional Start Up Procedure 1 Check to ensure e Service valve and gage port caps are installed and tightened e Voltage supply at unit agrees with nameplate rating e Field wiring connections are tight and factory wiring has not been disturbed and are tight e Indoor fan motor is on correct speed tap 2 Setthermostat selector switch to OFF and fan control Switch to Auto is so equipped 3 Close electrical disconnects to energize system 4 Setroom thermostat at desired temperature Be sure set point is below indoor ambient temperature 5 Setthe system switch of the thermostat on COOL or HEAT if applicable and fan switch for continuous operation ON or AUTO as desired There will be 5 minute short cycle compressor delay on startup Operate unit for 15 20 minutes then check the system refrigerant charge 6 Adjust refrigerant charge per Adjusting Charge section 100402 07 Issue 0733 Adjusting Charge Factory charge is shown on the rating label located on the access panel All split system heat pumps are factory charged for 15 feet of connecting line set and matched indoor fan coil Nameplate refrigerant charge should initially be adjusted for line set lengths other than 15 feet For line sets shorter than 15 feet in length remove charge For line sets longer than 15 feet add charge charge 15 sufficient for all line lengths Refrigeration Charge Adjus
25. nt The replacement part assumes the unused portion of the factory warranty Residential application is defined as a single family or multi family dwelling COVERED PARTS INCLUDE accumulator capacitor condenser coil contactor expansions device fan blade fan motor muffler reversing valve service valve solenoid valve unit mounted sensors and switches if present COMPRESSOR WARRANTY The compressor in the above listed product is warranted to be free from defects in material and workmanship under normal use and maintenance for a period of five 5 years for 13 SEER models 2AC13 2HP13 and ten 10 years for 14 SEER models 2AC14 2HP14 The compressor will be provided without charge for the compressor itself PROVIDED the defective compressor is returned to our distributor through a qualified servicing dealer or contractor The replacement compressor assumes the unused portion of the factory warranty THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred for diagnosing repairing removing installing shipping servicing or handling of either defective parts or replacement parts or complete unit Other costs not covered include items such as any materials not listed above refrigerant and refrigerant reclaiming Such costs may be covered by a separate warranty provided by the installing dealer or contractor THESE WARRANTIES APPLY ONLY To products in their original installation location and become void upon re installation
26. ontinuous operation and to AUTO for automatic cycling For maximum comfort satisfaction and continual air cleaning filtering constant fan operation is recommended Page 15 of 18 On models without a fan Selection Switch the fan will cycle with the outdoor unit Important System Information Your system should never be operated without a clean air filter properly installed e air and supply air registers should be free from restrictions or obstructions to allow full flow of air Regular Maintenance Requirements Your system should be regularly inspected by a qualified service technician These regular visits may include among other things checks for e Motor operation Ductwork air leaks Coil amp drainpan cleanliness indoor amp outdoor Electrical component operation amp wiring check Proper refrigerant level amp refrigerant leaks Proper airflow Drainage of condensate Air filter s performance Blower wheel alignment balance amp cleaning Primary amp secondary drain line cleanliness e Proper defrost operation heat pumps There is some routine maintenance procedures you can do to help keep your system operating at peak performance between visits Air Filter Inspect air filters at least monthly and replace or clean as required Disposable filters should be replaced Washable filters may be cleaned by soaking in mild detergent and rinsing with cold water Replace filters with the arrows pointing in the d
27. oper airflow quiet operation and maximum efficiency Position so water snow or ice from roof or eaves cannot fall directly on unit structure discharge air Ieri AN AD AA 99 Ind Mounting slab must slope slightly away from building Not to exceed 1 4 per foot ground level a PN F0000436 100402 07 Issue 0733 DO LOCATE THE UNIT e With proper clearances on sides and top of unit e Ona solid level foundation or pad e Tominimize refrigerant line lengths DO NOT LOCATE THE UNIT e On brick concrete blocks or unstable surfaces Near clothes dryer exhaust vents e Near sleeping area or near windows e Under eaves where water snow or ice can fall directly on the unit with clearance less than 2 ft from a second unit with clearance less than 4 ft on top of unit Operating Ambient The minimum outdoor operating ambient in cooling mode is 55 F and the maximum outdoor operating ambient in cooling mode is 125 F The maximum outdoor operating ambient in heating mode is 66 F Indoor Coil Piston Selection The outdoor heat pump section must be matched to a factory approved indoor section It is mandatory that the installer ensure that the correct piston is installed in the indoor section If necessary remove the existing piston and replace it with the correct piston indoor unit instructions for details of changing the piston Contact your distribut
28. or for accessory piston kits Indoor Cooling Piston Size 18 The evaporator coil may use an expansion valve TXV in place of piston 14 SEER Heat Pump Models All 14 SEER heat pump models are only rated with TXV on the indoor side 14 SEER Heat Pump Indoor TXV TXV Kit 18 thru 36 TXV3 42 thru 48 TXV5 Refrigeration Line Sets Use only refrigerant grade copper tubes Split Systems may be installed with up to 50 feet of line set no more than 20 feet vertical without special consideration see long line set guidelines Page 3 of 18 Recommended Liquid amp Vapor Tube Diameters In LIQUID VAPOR 3 8 3 8 3 4 3 4 3 81 7 1 FIELD SUPPLIED 7 8 X 1 1 8 CONNECTOR REQUIRED ON BOTH ENDS OF VAPOR TUBING It is important that no tubing be cut or seals broken until you are ready to actually make connections to the evaporator and to the condenser section DO NOT remove rubber plugs or copper caps from the tube ends until ready to make connections at evaporator and condenser Under no circumstances leave the lines open to the atmosphere for any period of time if so unit requires additional evacuation to remove moisture Be extra careful with sharp bends Tubing can kink very easily and if this occurs the entire tube length will have to be replaced Extra care at this time will eliminate future service problems It is recommended that vertical suction risers not be up sized Proper oil return to the compr
29. te ARI Directory of Certified Products Refer to http www aridirectory org index html Inspect the unit for any damage before installation If damage is found notify the transportation company immediately and file a concealed damage claim WARNING Installation or repairs made by unqualified persons can result in hazards to you and others Installation MUST conform with local building codes and with the National Electrical Code NFPA 70 ANSI C1 1993 or current edition and Canadian Electrical Code Part 1 CSA C22 1 CAUTION Improper installation adjustment alteration service or maintenance will void the warranty The qualified installer or agency must use factory authorized kits or accessories when added to this products Refer to the individual instructions included with the specific accessory kit NOTE These instructions are intended as a general guide and do not supersede national state or local codes in any way These instructions must be left with the property owner 100402 07 Issue 0733 Page 1 of 18 NOTE TO INSTALLING DEALER These instructions and warranty are to be given to the owner or displayed near the indoor air handler unit WARNING This product and or the indoor unit that is matched with may contain fiberglass wool Disturbing the insulation during installation maintenance or repair will expose you to fiberglass wool dust Fiberglass wool is known to the State of California to cause cancer
30. ted Surfaces For maximum protection of the unit s finish a good grade of automobile wax should be applied every year In geographical areas where water has a high concentration of minerals calcium iron sulfur etc It is recommended that lawn sprinklers not be allowed to spray the unit In such applications the sprinklers should be directed away from the unit Failure to follow this precaution may result in premature deterioration of the unit finish and metal components In sea coast areas special maintenance is required due to the corrosive atmosphere provided by the high salt concentration in ocean mists and the air Periodic washing of all exposed surfaces and coil will add additional life to your unit Please consult your installing dealer for proper procedures in your geographic area IF YOUR SYSTEM DOES NOT WORK BEFORE REQUESTING A SERVICE CALL Ensure thermostat is set below cooling or above heating room temperature and that the system lever is in the COOL HEAT or AUTO position 2 Inspect your return air filter If it is dirty your air conditioner may not function properly 3 Check indoor and outdoor disconnect switches Confirm circuit breakers are ON or that fuses have not blown Reset breakers replace fuses as necessary 4 Inspect the outdoor unit for clogged condenser coils grass cuttings leaves dirt dust or lint Ensure that branches twigs or other debris are not obstructing the condenser
31. tment Liquid Line Diameter Oz Per Linear Foot Factory charge for series is for 15 ft line sets and matched fan coil Before final adjustment is made to the refrigerant charge it is imperative that proper indoor airflow be established Airflow will be higher across a dry coil versus a wet coil Blower charts are calculated with a dry or wet coil basis Recommended airflow is 350 450 CFM per ton 12 000 Btuh through a wet coil Refer to indoor unit instructions for methods of determining air flow blower performance Cooling Cycle Charge Adjustment The optimum method for checking the charge is by weight However the following methods may be used to confirm the proper charge Units with Indoor Pistons Units installed with indoor pistons require charging with the superheat method The following procedure is valid when indoor airflow is within 20 of its rated 1 Operate unit a minimum of 10 minutes before checking charge 2 Measure suction pressure by attaching a gage to suction valve service port Do not use compressor suction port Determine saturation temp from T P chart 3 Measure suction temperature by attaching an accurate thermistor type or electronic thermometer to suction line at service valve 4 Calculate superheat measured temp saturation temp 5 Measure outdoor air dry bulb temperature with thermometer 6 Measure indoor air entering indoor coil wet bulb temperature with
32. ure and air temperature entering indoor and outdoor units If pressure and temperature do not match on chart system refrigerant charge may not be correct Do not use chart to adjust refrigerant charge Charge must be rechecked again during the cooling season Cold Weather Application A cold weather accessory kit may be required for heat pumps operating at ambient conditions below 25 F Supplemental heat should be provided for these conditions due to the expected performance degeneration 100402 07 Issue 0733 SYSTEM OPERATION The outdoor unit and indoor blower cycle on demand from the room thermostat When the thermostat blower switch is in the ON position the indoor blower operates continuously Filter Drier The outdoor unit is equipped with a bi flow filter drier If replacement is necessary order new dryer according to the Service parts manual Emergency Heat Function Room Thermostat An emergency heat function is designed into some room thermostats This feature is applicable when isolation of outdoor unit is required or when auxiliary electric heat is staged by outdoor thermostats When the room thermostat is placed in the emergency heat position the outdoor unit control circuit is isolated from power and field provided relays bypass the outdoor thermostats amber indicating light simultaneously comes on to remind the homeowner that he is operating in the emergency heat mode Emergency heat is usually used
33. valves have been closed after final testing at the factory DO NOT disturb these valves until the lines have been leak checked and evacuated or the charge in the unit may be lost 1 Connect the vacuum pump to the center hose of the manifold gauge set the low pressure manifold gauge to the vapor service valve and the high pressure manifold gauge to the liquid service valve NOTE Unnecessary switching of hoses can be avoided and complete evacuation of all lines can be achieved by also connecting a branch hose from the manifold gauge center port to a cylinder of R 22 Provide a separate shut off valve to vacuum pump to avoid contaminating vacuum pump oil with refrigerant Page 4 of 18 2 The valves should be kept in the front seated closed position This will allow evacuation of the refrigeration lines and the indoor coil without disturbing the factory charge in the outdoor unit 3 Follow the vacuum pump manufacturer s instructions Allow the pump to operate until the system has been evacuated down to 300 microns Allow the pump to continue running for an additional 15 minutes Turn OFF the pump and leave the connections secured to the two 2 service valves After 5 minutes if the system fails to hold 500 microns or less check all connections for tight fit and repeat the evacuation procedure 4 Isolate the vacuum pump from the system by closing the shutoff valves on the gauge set Disconnect the vacuum pump Opening Servi
Download Pdf Manuals
Related Search