Installation Manual
Contents
1. 8 DIA LIQUID TUBE CONN A92490 UNIT SIZE 024 030 036 042 060 Fig 2 Unit Reference Drawing PROCEDURE 2 INSTALL ON A SOLID LEVEL MOUNTING PAD If conditions or local codes require unit be attached to pad tie down bolts should be used and fastened through knockouts provided in unit base pan Refer to unit mounting pattern in Fig 2 to determine base pan size and knockout hole locations When installing allow sufficient space for airflow clearance wiring refrigerant piping and service Allow 30 in clearance to service end of unit and 48 in above unit For proper airflow a 6 in clearance on 1 side of unit and 12 in on all remaining sides must be maintained Maintain a distance of 24 in between units Position so water snow or ice from roof or eaves cannot fall directly on unit On rooftop applications locate unit at least 6 in 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 Consult local codes governing rooftop applications PROCEDURE 3 REPLACE INDOOR CHECK FLO RATER PISTON IF REQUIRED Check indoor coil piston to see if it matches required piston shown on unit rating plate If it does not match replace indoor coil piston with piston shipped with outdoor unit The piston shipped with outdoor unit is correct for any approved indo2. Catalog No 53PA 121
3. Installation Manual Electric Air Conditioner PA12NA Sizes 024 060 AAA SOS OOOO III ONO NON IMPORTATI ETAT I A92461 Fig 1 Model PA12NA NOTE Read the entire instruction manual before starting the installation SAFETY CONSIDERATIONS Improper installation adjustment alteration service maintenance or use can cause explosion fire electrical shock or other conditions which may cause personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instructions packaged with the kits or accessories when installing 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 warnings or cautions attached to the unit Consult local building codes and National Electrical Code NEC for special requirements Recognize safety information This is the safety alert symbol A When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious haza
4. R ut mm R I LLS LI NC di Y tI i k J TOIFMLINE Y D Q SN 70 OBRn PL O SUPPLY COND UNIT IFR A W ARRANGEMENT A COOLING ONLY TRANS i SEE NOTE 2 ug ADD JUMPER Li R RETE 17m rt I LLS F NC Il I ge A e eee E L loi t i Pa TO IFM LINE VOLTAGE D D Horo K POWER SUPPLY BLU BRN GF f u AS A IFR lish LI LI i w en J HC ARRANGEMENT B 1 TRANSFORMER COOLING AND 1 STAGE HEATING TRANS SEE NOTE 2 PH a LEAVE JUMPER 7 ii 7 I ON SUBASE II RH TO RC hi LLS ki NC 11 Se 11 I t a TO IFM LINE D a VOLTAGE ON _ SUPPLY ee a I IFR si DELE E I HC 1 4J40 ARRANGEMENT C 1 TRANSFORMER COOLING AND 2 STAGE HEATING NOTES 1 REFER TO UNIT LABEL WIRING DIAGRAM FOR WIRE COLORS IFR IFM AND LLS ARE LOCATED INDOORS ON HEATING COOLING APPLICATIONS IF ACCESSORY IFR IS REQUIRED FOR COOLING ONLY APPLICATIONS LOCATE IFR IN FAN COIL 2 N E C CLASS 2 24V CIRCUIT MIN 40VA REQUIRED C CONTACTOR HC HEATING CONTROL IFM INDOOR FAN MOTOR LLS LIQUID LINE SOLENOID VALVE NC NORMALLY CLOSED TRANS TRANSFORMER A93199 Fig 6 Typical 24 v Circuit Connections BEE a 1999 Payne Heating 8 Cooling P O Box 70 Indianapolis IN 46206 8 impa1201
5. ated more than 100 ft from unit as measured along control voltage wires use No 16 AWG color coded wires to avoid excessive voltage drop Use furnace transformer fan coil transformer or accessory transformer for control power 24 v 40 va minimum NOTE Use of available 24 v accessories may exceed minimum 40 va power requirement Determine total transformer loading and increase transformer capacity or splil load with an accessory transformer as required PROCEDURE 7 COMPRESSOR CRANKCASE HEATER A crankcase heater is required if refrigerant tubing is longer than 50 ft PROCEDURE 8 INSTALL ELECTRICAL ACCESSORIES Refer to individual instructions packaged with kits or accessories when installing PROCEDURE 9 START UP 1 When equipped with a crankcase heater energize heater a minimum of 24 hr before starting unit To energize heater only set thermostat to OFF mode and close electrical disconnect to outdoor unit Z CAUTION Service valve gage ports are equipped with Schrader valves To prevent personal injury wear safety glasses and gloves when handling refrigerant 2 Fully open liquid and vapor service valves 3 Unit is shipped with valve stem s front seated and caps installed Replace stem caps after system is opened to refrigerant flow Replace caps finger tight and tighten additional 1 6 turn with wrench 4 Close electrical disconnects to energize system 5 Set room thermostat at desired temperature Be sure set point is b
6. ce may fluctuate above or below permissible limits NOTE Use copper wire only between disconnect switch and unit NOTE Install branch circuit disconnect per NEC of adequate size to handle unit starting current Locate disconnect within sight from and readily accessible from unit per Section 440 14 of NEC A Route Ground and Power Wires Remove access panel to gain access to unit wiring Extend wires from disconnect through power wiring hole provided and into unit control box See Fig 2 A WARNING According to NEC ANSI NFPA 70 and local codes 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 could result in an electric shock fire or death B Connect Ground and Power Wires Connect ground wire to ground connection in control box for safety Connect power wiring to contactor as shown in Fig 5 4 DISCONNECT PER N E C AND OR LOCAL CODES poo CONTACTOR FIELD POWER O GE K FIELD_GROUND ______ WIRING GROUND LUG A88174 Fig 5 Line Power Connections 1 Phase C Connect Control Wiring Route 24 v control wires through control wiring grommet and connect leads to control wiring See Fig 6 Use No 18 AWG color coded insulated 35 C minimum wires If thermostat is loc
7. elow indoor ambient temperature 6 Set room thermostat at COOL and fan ON or AUTO modes as desired Operate unit for 15 minutes Check system refrigerant charge See Checking Charge section below 4 WARNING Relieve pressure and recover all refrigerant before system repair or final unit disposal to avoid personal injury or death Use all service ports and open all flow control devices including solenoid valves PROCEDURE 10 CHECKING CHARGE Factory charge is shown on unit rating plate See Fig 2 Charge procedure is shown on information plate A CAUTION Compressor damage may occur if system is overcharged Z CAUTION Do not vent refrigerant to atmosphere Recover during system repair or final unit disposal CARE AND MAINTENANCE For continuing high performance and to minimize possible equipment failure it is essential that periodic maintenance be performed on this equipment Consult your servicing contractor or User s Manual for proper frequency of maintenance Frequency of maintenance may vary depending upon geographic areas such as coastal applications Leave User s Manual with homeowner Explain system operation and maintenance procedures outlined in manual 5 THERMOSTAT SUBASE TNS MIN 60VA 4
8. local code requirements 4 Braze flare adapter onto outlet end of solenoid valve 5 Wire solenoid coil into system control circuit as shown in Fig 6 PROCEDURE 5 REFRIGERANT TUBING Connect tubing to fittings on outdoor unit vapor and liquid service valves See Fig 2 Z CAUTION To avoid valve damage while brazing service valves must be wrapped with a heat sinking material such as a wet cloth A Sweat Connection Use refrigerant grade tubing Service valves are closed from factory and ready for brazing After wrapping service valve with a wet cloth tubing set can be brazed to service valve using either silver bearing or non silver bearing brazing material Consult local code requirements Refrigerant tubing and indoor coil are now ready for leak testing This check should include all field and factory joints PROCEDURE 6 MAKE ELECTRICAL CONNECTIONS A WARNING To avoid personal injury or death do not supply power to unit with compressor terminal box cover removed Be sure field wiring complies with local and national fire safety and electrical codes and voltage to system is within limits shown on unit rating plate Contact local power company for correction of improper voltage See unit rating plate for recommended circuit protection device NOTE Operation of unit on improper line voltage constitutes abuse and could affect unit reliability See unit rating plate Do not install unit in system where voltage or phase imbalan
9. or coil combination PROCEDURE 4 MAKE PIPING CONNECTIONS Outdoor units may be connected to indoor sections using accessory tubing package or field supplied refrigerant grade tubing of correct size and condition For tubing requirements beyond 50 ft consult Long Line Application Guideline which is available at your local distributor NOTE In some cases noise in living area has been traced to gas pulsations from improper installation of equipment A Installation Recommendations Locate unit away from windows Ensure that vapor and liquid line diameters are appropriate to capacity of unit See Table 1 Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends Leave some slack between structure and unit to absorb vibration When passing refrigerant tubes through wall seal opening with RTV or other pliable silicon based caulk See Fig 3 Avoid direct lineset contact with water pipes ductwork floor joists wall studs floors and walls Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tubing See Fig 3 Ensure that tubing insulation is pliable and completely surrounds vapor line D NO SS When necessary use hanger straps which are 1 in wide and conform to shape of tubing insulation See Fig 3 10 Isolate hanger straps from insulation by using metal sleeves bent to conform to shape of insulation If refrigerant tubes
10. or indoor coil is exposed to atmospheric conditions for longer than 5 minutes it must be evacuated to 500 microns to eliminate contamination and moisture in system Z CAUTION DO NOT BURY MORE THAN 36 IN OF REFRIGERANT TUBING IN GROUND If any section of tubing is buried there must be a 6 in vertical rise to valve connections on outdoor unit If more than recommended length is buried refrigerant may migrate to cooler buried section during extended periods of unit shutdown causing refrigerant slugging and possible compressor damage at start up Su NOTE AVOID CONTACT BETWEEN TUBING AND STRUCTURE OUTDOOR WALL n CAU Ni INDOOR WALL NT INSULATION N THROUGH THE WALL VAPOR TUBE LIQUID TUBE HANGER STRAP AROUND VAPOR TUBE ONLY VAPOR eS g g INSULATION LS sl MIN LIQUID TUBE SUSPENSION A92469 Fig 3 Piping Installation Table 1 Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters In LIQUID UNIT SIZE Connect Diameter Tube Diameter Connect Diameter Tube Diameter 024 3 8 3 8 5 8 5 8 030 036 3 8 3 8 3 4 3 4 042 048 3 8 3 8 7 8 7 8 060 3 8 3 8 7 8 1 1 8 Note Tube diameters are for lengths up to 50 ft For tubing lengths greater than 50 ft consult your local distributor or Long Line Application Guideline B Outdoor Units Connected
11. rds which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage As WARNING Before installing or servicing system always turn off main power to system There may be more than 1 disconnect switch Turn off accessory heater power if applicable Electrical shock can cause personal injury or death INSTALLATION PROCEDURE 1 CHECK EQUIPMENT AND JOBSITE A Unpack Unit Move to final location Remove carton taking care not to damage unit B Inspect Equipment File claim with shipping company prior to installation if shipment is damaged or incomplete Locate unit rating plate on unit service panel See Fig 2 It contains information needed to properly install unit Check rating plate to be sure unit matches job specifications Form IM PA12 01 Cancels Il 712A 24 1 Printed in U S A 3 97 Catalog No 53PA 121 A AIR DISCHARGE AIR IN Au FIELD POWER SUPPLY CONN 7 g DIA HOLE WITH 1 1 8 DIA KNOCKOUT AND 1 3 8 DIA KNOCKOUT AIRIN me FIELD CONTROL POWER VAI SUPPLY CONN N 7 8 DIA HOLE DISCHARGE TIEDOWN KNOCKOUTS 2 PLACES Payne Heating amp Cooling P O Box 70 Indianapolis IN 46206 E DIA SERVICE LINE CONN 3
12. to Factory approved Indoor Units Outdoor unit contains correct system refrigerant charge for operation with indoor unit of same size when connected by 15 ft of field supplied or factory accessory tubing Check refrigerant charge for maximum efficiency See Procedure 10 Checking Charge C Install Solenoid Valve in Liquid Tube CAUTION All models require liquid line solenoid for performance enhancement Solenoid valve must be energized during evacuation for complete removal Before making liquid tube connections install factory supplied solenoid valve on indoor liquid tube fitting See Fig 4 Be sure to use flare adapter supplied with indoor coil when making connections Z CAUTION Ifa field supplied power source is needed when adding solenoid wiring must comply with local codes and NEC requirements 1 Remove coil liquid connection cap and discard 2 Mount solenoid valve on liquid tube making sure valve flow arrow points toward indoor coil Mount valve in any position except valve body at top and electric coil at bottom See Fig 4 The solenoid valve is to be installed a maximum of 2 ft from indoor coil ELECTRICAL JUNCTION ELECTRICAL COIL quell E N VALVE FLOW ARROW STRAIGHT 3 g IN STUD NOTE System flow direction must match arrow on bottom of body A87044 Fig 4 Solenoid Valve Installation 3 Braze valve onto end of liquid tube using silver bearing or non silver bearing brazing material Consult
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