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Lennox International Inc. LENNOX Elite Series XP13 Units HEAT PUMPS manual

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  • Page 1

    06/1 1 506728−01 *2P0611* *P506728-01* Page 1  201 1 Lennox Industries Inc. Dallas, T exas, USA These instruc tions are intended as a general guide and do not supersede local codes in any way. Cons ult authorities hav ing jurisdic tion before installation. RET AIN THESE INSTRUCTIONS FOR FUTURE REFERENCE NOTICE T O INST ALLER BRAZING LINE SET T[...]

  • Page 2

    Page 2 506728−01 Model Number Identification P 13 036 − − Unit T ype P = Heat Pump Outdoor Unit Series Nominal Cooling Capacity 018 = 1.5 tons 024 = 2 tons 030 = 2.5 tons 036 = 3 tons 042 = 3.5 tons 048 = 4 tons 060 = 5 tons Minor Revision Number 230 V olt age 230 = 208/230V−1ph−60hz Refrigerant T ype X = HFC−410A X 8 − 0 Unit Dimensi[...]

  • Page 3

    Page 3 XP13 SERIES T ypical Unit Parts Arrangement LIQUID LINE FIL TER DRIER (BI−FLOW) FIELD CONNECTION FOR LIQUID LINE SET LIQUID LINE SER VICE V AL VE REVERSING VA LV E FIELD CONNECTION FOR V APOR LINE (BALL−TYPE −060 ONL Y) HIGH PRESSURE SWITCH (AUTO−RESET) (S4) GROUND LUG CONT ACT OR− 1POLE (K1−1) CAP ACIT OR (C12) CONTROL P ANEL PL[...]

  • Page 4

    Page 4 506728−01 Caps and Fasteners T orque Requirements IMPORT ANT Only use Allen wrenches of sufficient hardness (50Rc − Rockwell Harness Scale minimum). Fully insert the wrench into the valve stem recess. Service valve stems are factory−torqued (from 9 f t−lbs f or small valves, to 25 f t−lbs for large valves) to prevent refrigerant lo[...]

  • Page 5

    Page 5 XP13 SERIES INSER T HEX−HEAD EXTENSION HERE SER VICE POR T CORE SER VICE POR T CAP SER VICE POR T CORE TO OUTDOOR UNIT STEM CAP (V AL VE STEM SHOWN OPEN) INSER T HEX WRENCH HERE TO INDOOR UNIT BALL (SHOWN CLOSED) SER VICE POR T CORE TO INDOOR UNIT TO OUTDOOR UNIT A To open rotate stem counterclockwise 90°. B To close rotate stem clockwise[...]

  • Page 6

    Page 6 506728−01 Recovering Refrigerant from Existing System Disconnect all power to the existing outdoor unit at the disconnect switch and/or main fuse box/breaker panel. DISCONNECT POWER CONNECT MANIFOLD GAUGE SET MANIFOLD GAUGES RECOVER Y MACHINE CLEAN RECOVERY CYLINDER OUTDOOR UNIT HIGH LOW Connect a manifold gauge set, clean recovery cylinde[...]

  • Page 7

    Page 7 XP13 SERIES New Out door Unit Placement CAUTION In order to avoid injury , take proper precaution when lif t- ing heavy object s. Remove existing out door unit prior to placement of new outdoor unit. See Unit Dimensions on p age 2 for sizing mounting slab, plat forms or support s. Refer to figure 4 for mandatory installation clearance requir[...]

  • Page 8

    Page 8 506728−01 LEG DET AIL BASE 2" (50.8MM) SCH 40 FEMALE THREADED ADAPTER Concrete slab  use two plastic anchors (hole drill 1/4") W ood or plastic slab  no plastic anchor (hole drill 1/8") COIL BASE P AN CORNER POST ST ABILIZING BRACKET (18 GAUGE MET AL  2" WIDTH; HEIGHT AS REQUIRED)  Slab Side Mounting #10 1/2[...]

  • Page 9

    Page 9 XP13 SERIES Removing and Inst alling Panels LOUVERED P ANEL REMOV AL Remove the louvered panels as follows: 1. Remove two screws, allowing the panel to swing open slightly . 2. Hold the panel firmly throughout this procedure. Rotate bottom corner of panel away from hinged corner post until lower three tabs clear the slots as illustrated in d[...]

  • Page 10

    Page 10 506728−01 Line Set Requirement s This section provides information on: inst allation of new or replacement line set.  Adding Polyol ester oil requirements  New or replacement line set installation  Using existing line set. ADDING POL YOL ESTER OIL REQUIREMENTS IMPORT ANT Mineral oils are not compatible with HFC−410A . If oil mu[...]

  • Page 11

    Page 1 1 XP13 SERIES ANCHORED HEA VY NYLON WIRE TIE OR AUT OMOTIVE MUFFLER-TYPE HANGER STRAP LIQUID LINE TO V APOR LINE W ALL STUD LIQUID LINE NON−CORROSIVE MET AL SLEEVE V APOR LINE − WRAPPED IN ARMAFLEX AUT OMOTIVE MUFFLER-TYPE HANGER REFRIGERANT LINE SET  TRANSITION FROM VERTICAL TO HORIZONT AL Line Set Isolation  The following illustr[...]

  • Page 12

    Page 12 506728−01 Brazing Connections Use the procedures outline in figures 8 and 9 for brazing line set connections to service valves. W ARNING Polyol Ester (POE) oils used with HFC− 410A refr igerant absorb moisture very quickly . It is very important that the refrigerant sys tem be kept closed as much as possible. DO NOT remove line set cap [...]

  • Page 13

    Page 13 XP13 SERIES A TT ACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND SUCTION / V APOR LINE SER VICE V AL VES OUTDOOR UNIT LIQUID LINE V APOR LINE LIQUID LINE SERVICE VA LV E SUCTION / V APOR LINE SER VICE VA LV E A TTACH GAUGES INDOOR UNIT SUCTION / V APOR SER VICE POR T MUST BE OPEN TO ALLOW EXIT POINT FOR NITROGEN A Connect gauge set low pr[...]

  • Page 14

    Page 14 506728−01 WHEN BRAZING LINE SET TO SER VICE V A L VES, POINT FLAME A W A Y FROM SER VICE V AL VE. LIQUID LINE SERVICE V AL VE LIQUID LINE BRAZE LINE SET W rap both service valves with water saturated cloths as illustrated here and as mentioned in step 4, before brazing to line set . W ater saturated cloths must remain water saturated thro[...]

  • Page 15

    Page 15 XP13 SERIES Indoor Refrigerant Metering Device Removal and Flushing Line Set and Indoor Coil Flushing is only required when the existing system used HCFC−22 refrigerant. If the existing system used HFC−410a, then remove the original indoor coil metering device and proceed to Installing New Indoor Metering Device on page 16 . SENSING LIN[...]

  • Page 16

    Page 16 506728−01 Installing New Indoor Metering Device This out door unit is designed for use in HFC−410A systems that use a check / exp ansion valve metering device (purchased sep arately) at the indoor coil. See t he Lennox XP13 Engineering Handbook f o r app r o v e d ch e c k / exp a n s i on val v e ki t ma t c h − u p s . The check / e[...]

  • Page 17

    Page 17 XP13 SERIES Leak T est Line Set and Indoor Coil IMPORT ANT Leak detector must be cap able of sensing HFC refr igerant. TO V APOR SER VICE V AL VE (ANGLE OR BALL TYPE) HFC−410A MANIFOLD GAUGE SET OUTDOOR UNIT HIGH LOW NITROGEN A Connect an HFC−410A manifold gauge set high pressure hose to the vapor valve service port. NOTE  Normally ,[...]

  • Page 18

    Page 18 506728−01 Evacuating Line Set and Indoor Coil Evacuating the system of non−condensables is critical for proper operation of the unit. Non−condensables are defined as any gas that will not condense under temperatures and pressures present during operation of an air conditioning system. Non−condensables and water suction combine with [...]

  • Page 19

    Page 19 XP13 SERIES IMPORT ANT Use a thermocouple or thermistor electronic vacuum gauge that is calibrated in microns. Use an instrument capable of accurately measuring down to 50 microns. W ARNING Danger of Equipment Dam age. Avoid deep vacuum operation. Do not use compressors to evacuat e a system. Extremely low vacuu ms can cause intern al arcin[...]

  • Page 20

    Page 20 506728−01 Figure 14. T ypical Unit Wiring Diagram[...]

  • Page 21

    Page 21 XP13 SERIES Figure 15. T ypical Factory Wiring Unit Start−Up IMPORT ANT If unit is equipped with a crankcase heater , it should be energized 24 hours before unit st art−up to prevent compressor damage as a result of slugging. UNIT ST ART−UP 1. Rot ate fan to check for binding. 2. Inspect all factory− and field−inst alled wiring fo[...]

  • Page 22

    Page 22 506728−01 Service and W eigh In Refrigerant for Outdoor Unit s Delivered V oid of Charge The following procedures are only required if it has been determine that the new out door unit is void of charge. Skip to the next section if refrigerant charge is present. LEAK CHECK, REP AIR AND EV ACUA TE If the outdoor unit is void of refrigerant,[...]

  • Page 23

    Page 23 XP13 SERIES WEIGH−IN CHARGING LIQUID LI NE SET DIAMETER OUNCES PER 5 FEET (GRAMS PER 1.5 METERS) ADJUST FROM 15 FEET (4.6 METERS) LINE SET* 3/8" (9.5 MM) 3 OUNCE PER 5’ (85 GRAMS PER 1.5 M) *If line length is greater than 15 feet (4.6 meters), add this amount. If line length is less than 15 feet (4.6 meters), subtract this amount. [...]

  • Page 24

    Page 24 506728−01 Optimizing System Refrigerant Charge This section provides instructions on optimizing the system charge. This section includes:  Optimizing procedure  Adjusting indoor airflow  Using subcooling method  Approved matched component s, t argeted subcooling (SC) values and add charge values  Normal operating pressures [...]

  • Page 25

    Page 25 XP13 SERIES 1. Check liquid and vapor line pressures. Comp are pressures with either second−st age heat or cooling mode normal operating pressures listed in table 4. T able 4 is a general guide and expect minor pressures variations. Significant pressure dif ferences may indicate improper charge or other system problem. 2. Decide whether t[...]

  • Page 26

    Page 26 506728−01 APPROVED MA TCHED SYSTEM COMPONENTS, T ARGETED SUBCOOLING (SC) V ALUES AND ADD CHARGE V ALUES Listed below are the approved matched system component s (air handlers and indoor coils), t argeted subcooling and add charge values for the XP13. This information is also listed on the unit charging sticker located on the out door unit[...]

  • Page 27

    Page 27 XP13 SERIES Liquid Pressure Model Number Heating Cooling ºF (ºC)* 20 (−7) 30 (−1) 40 (4.5) 50 (10) 60 (16) 65 (18) 70 (21) 75 (24) 80 (27) 85 (29) 90 (32) 95 (35) 100 (38) 105 (41) 11 0 (43) 11 5 (45) 13HPX−018 275 289 305 323 340 236 252 272 294 316 339 363 389 415 443 472 13HPX−024 267 283 299 316 334 251 271 293 315 337 361 386[...]

  • Page 28

    Page 28 506728−01 System Operation IMPORT ANT Some scroll compressor have internal vacuum protector that will unload scrolls when suction pressure goes below 20 psig. A hissing sound will be heard when the compressor is running unloaded. Protector will reset when low pressure in system is raised above 40 psig. DO NOT REPLACE COMPRESSOR. High Pres[...]

  • Page 29

    Page 29 XP13 SERIES Compressor Delay (P5) The defrost control has a field−selectable function to reduce occasional sounds that may occur while the unit i s cycling in and out of the defrost mode.  Unit s with defrost control 100269−02 : The compressor will be cycled off for 30 seconds going in and out of the defrost mode when the compressor [...]

  • Page 30

    Page 30 506728−01 Maintenance DEALER Maintenance and service must be performed by a qualified installer or service agency . At the beginning of each cooling season, the system should be checked as follows: Outdoor Unit 1. Clean and inspect the outdoor coil. The coil may be flushed with a water hose. Ensure the power is turned off before you clean[...]

  • Page 31

    Page 31 XP13 SERIES Thermostat Operation See the thermost at homeowner manual for instructions on how to operate your thermost at. Heat Pump Operation Y our new Lennox heat pump has several characteristics that you should be aware of:  Heat pumps satisfy heating demand by delivering large amount s of warm air into the living sp ace. This is quit[...]

  • Page 32

    Page 32 506728−01 S tart−Up and Performance Checklist Job Name Job no. Date Job Location City S t ate Installer City S t ate Unit Model No. Serial No. Service T echnician Nameplate V olt age Rated Load Ampacity Compressor Amperage: Maximum Fuse or Circuit Breaker Electrical Connections T ight?  Indoor Filter clean?  Supply V olt age (Unit[...]