Trane 4WCC4024E1000A Installation And Operation Manual Download Page 3

Page: 3 / 36

18-BB41D1-1A-EN

Introduction, Unit Inspection and
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Inspect Shipment . . . . . . . . . . . . . . . . . . . . . . . . . 4

Product Specification . . . . . . . . . . . . . . . . . . . . . 5

Charging in Cooling above 55°F OD
Ambient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Determine Unit Clearances . . . . . . . . . . . . . . . . . 7

Review Location and Recommendation
Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Ground Level Installation. . . . . . . . . . . . . . . . . 10

Rooftop Installation — Curb
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Lifting and Rigging . . . . . . . . . . . . . . . . . . . 11

Rooftop Installation — Frame
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Rooftop Installation — No Curb/
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Ductwork Installation . . . . . . . . . . . . . . . . . . . . 15

Attaching Downflow Ductwork to
Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Attaching Downflow Ductwork to Roof
Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Attaching Horizontal Ductwork to
Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Condensate Drain Piping . . . . . . . . . . . . . . . . . 15

Air Filter Installation . . . . . . . . . . . . . . . . . . . . . 15

Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 16

Unit Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Pre-Start Quick Checklist . . . . . . . . . . . . . . . . . 19

Starting the Unit in Cooling Mode. . . . . . . . . 19

Starting the Unit in Heating Mode. . . . . . . . . 19

Sequence of Operation. . . . . . . . . . . . . . . . . . . 20

Final Installation Checklist . . . . . . . . . . . . 21

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Owner Maintenance. . . . . . . . . . . . . . . . . . 21
Service Maintenance . . . . . . . . . . . . . . . . . 21

Defrost Control . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Pressure Curves . . . . . . . . . . . . . . . . . . . . . . . . . 25

Indoor Fan Performance. . . . . . . . . . . . . . . . . . 31

Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . 33

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . 34

Table of Contents

Important

Product

Information

Summary of Contents for 4WCC4024E1000A

Page 1: ...th or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached to the equipment February 2022 1 18 8 B BB B4 41 1D D1 1 1 1A A E EN N Single Packaged Heat Pump 13 4 SEER2 Convertible 2 5 Ton 4WCC4024E1000A 4WCC4030E1000A 4WCC4036E1000A 4WCC4042E1000A 4WCC4048E1000A 4WCC4060E1000A N No ot te e Graphics in this docum...

Page 2: ... tr ri ic ca al l c cu ur rr re en nt t a ar re e g gr ro ou un nd de ed d I If f g gr ro ou un nd di in ng g w wi ir re es s s sc cr re ew ws s s st tr ra ap ps s c cl li ip ps s n nu ut ts s o or r w wa as sh he er rs s u us se ed d t to o c co om mp pl le et te e a a p pa at th h t to o g gr ro ou un nd d a ar re e r re em mo ov ve ed d f fo or r s se er rv vi ic ce e t th he ey y m mu us st t ...

Page 3: ... 12 Ductwork Installation 15 Attaching Downflow Ductwork to Roof Curb 15 Attaching Downflow Ductwork to Roof Frame 15 Attaching Horizontal Ductwork to Unit 15 Condensate Drain Piping 15 Air Filter Installation 15 Electrical Wiring 16 Unit Startup 19 Pre Start Quick Checklist 19 Starting the Unit in Cooling Mode 19 Starting the Unit in Heating Mode 19 Sequence of Operation 20 Final Installation Che...

Page 4: ...it I Im mp po or rt ta an nt t To prevent damage to the sides and top of the unit when hoisting use spreader bars see Rooftop Installation No Curb Frame p 12 2 Check the unit s nameplate to determine if the unit is correct for the intended application The power supply must be adequate for both the unit and all accessories 3 Check to be sure the refrigerant charge has been retained during shipment ...

Page 5: ...VE Drain Conn Size in 3 4 FEMALE NPT OUTDOOR FAN TYPE SWEPT DIA IN 23 4 28 3 DRIVE NO SPEEDS DIRECT 1 CFM 0 0 in w g e 2550 3270 3250 4400 4400 5500 Motor HP R P M 1 12 850 1 6 842 1 5 855 1 4 798 1 4 825 1 3 825 Volts Ph Hz 208 230 1 60 F L Amps L R Amps LOCATED ON UNIT NAMEPLATE INDOOR FAN TYPE Constant Torque ECM Dia x Width in 10 62 x 10 68 10 62 x 10 62 11 87 x 10 68 Drive No Speeds DIRECT 4 ...

Page 6: ...the temperature is above 55 F R 410A REFRIGERANT CHARGING CHART Refer to Service Facts or Installer s Guide for charging method LIQUID TEMP F DESIGN SUBCOOLING F 6 8 9 10 11 12 13 14 16 LIQUID GAGE PRESSURE PSI 55 174 179 182 185 188 191 195 198 205 60 189 195 198 201 204 208 211 215 222 65 205 211 215 218 222 225 229 232 240 70 222 229 232 236 240 243 247 251 259 75 240 247 251 255 259 263 267 27...

Page 7: ...ACK SIDE LEFT SIDE RIGHT SIDE FRONT SIDE TOP A BB CC DD Depth EE Width FF 497 8 19 5 8 576 22 11 16 CENTER OF GRAVITY TABLE NEXT PAGE CENTER OF GRAVITY TABLE NEXT PAGE 1093 72 43 1 16 1173 99 46 1 4 1284 99 50 5 8 1535 94 60 1 2 305 12 305 12 914 36 914 36 DIMENSIONS mm Inches HEIGHT OF UNIT TABLE NEXT PAGE 25 1 25 1 152 6 152 6 152 6 152 6 2 3 TON Units 3 5 5 TON Units RECOMMENDED SERVICE CLEARAN...

Page 8: ...304 80 6 8 79 50 3 13 398 22 15 68 176 07 6 93 W1 W2 W3 W4 BB CC 4WCC4024 52 9 117 33 3 73 24 1 53 38 3 84 182 3 402 148 6 328 430 16 9 565 3 22 3 4WCC4030 55 3 122 50 3 110 16 6 37 39 2 86 195 0 430 161 3 355 413 5 16 3 581 22 9 4WCC4036 59 6 131 37 3 82 26 6 59 41 7 92 199 439 165 3 364 430 16 9 535 21 1 4WCC4042 64 4 142 47 6 105 39 5 87 49 9 110 248 6 547 9 201 4 444 449 6 17 7 641 8 25 3 4WCC...

Page 9: ...ruction on converting the supply and return airflow covers to down airflow 3 The field assembled Roof Mounting Curb BAYCURB050A or BAYCURB051A or a field fabricated curb should be in place before the unit is hoisted to the roof top The Roof Mounting Curb frame must be installed on a flat level section of the roof maximum of 1 4 per foot pitch and provide a level mounting surface for the unit Also ...

Page 10: ...must be a weatherproof seal where the duct enters the structure 5 Do not expose the unit to direct roof water runoff 6 Seal all holes through exterior walls in accordance with local codes 7 Continue with the following installation sections to complete the installation Ductwork Filter and Electrical Wiring Rooftop Installation Curb Mounting C Co on nv ve er rt t H Ho or ri iz zo on nt ta al l A Ai ...

Page 11: ... rigging and hoisting requires accessory kit BAYLIFT002BA It includes a kit of four 4 lifting lugs 2 Insert the four lifting lugs in the openings provided in the drip lip on each end of the unit A tap or jerk to the lug will overcome the interference that arises due to the dimple on the lug 3 When hoisting the unit be sure that a proper method of rigging is used Use slings and spreader bars for pr...

Page 12: ...tors must be of a flame retardant material All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes 11 Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings Determine Unit Clearances p 7 provide unit dimensions 12 Continue with the following installation sections to complete the inst...

Page 13: ...ails Drip lip on perimeter of unit Spreader Bars Gasket Seal Drip Lip Dimple BAYLIFT002A Lifting Lugs Table 3 Curb Dimensions This drawing was prepared by the manufacturer in order to provide detail regarding job layout only This drawing is not intended to be used as a basis to construct build or modify the item depicted in the drawing The manufacturer is not responsible for the unauthorized use o...

Page 14: ...Center Support Center Support required on all frame applications Angle Iron Frame Table 5 Typical Rooftop Down Airflow Application with Frame Return Air Roof Flashing Channel Iron Center Support center support required on all frame applications Angle Iron Frame Roof Flashing Supply Air U Un ni it t I In ns st ta al ll la at ti io on n ...

Page 15: ... horizontal unit provide a flexible watertight connection to prevent noise transmission from the unit to the ducts The flexible connection m mu us st t be indoors and made out of heavy canvas N No ot te e Do not draw the canvas taut between the solid ducts Figure 6 Attaching Horizontal Airflow Ductwork FIELD DUCT UNIT EXTERIOR WEATHERPROOF THIS SEAM FIELD DUCT UNIT EXTERIOR WEATHERPROOF THIS SEAM ...

Page 16: ...ovide an approved weatherproof disconnect within close proximity and w wi it th hi in n s si ig gh ht t o of f t th he e u un ni it t If disconnect must be mounted to the cabinet the location shown in Table 9 p 16 should be the only one considered O Ov ve er r C Cu ur rr re en nt t P Pr ro ot te ec ct ti io on n The branch circuit feeding the unit must be protected as shown on the unit s rating pl...

Page 17: ...ater used 5 See unit and heater diagram for electrical connection details 6 If electric heater accessory is not installed omit the electric heater associated power wires and the W and X2 thermostat wires 7 Fig 3 demonstrates connection of the outdoor thermostat accessory only For further unit connection details refer to the other figures 8 The W1 wire is first stage electric heat If the electric h...

Page 18: ...all electrical connections including factory wiring within the unit and make sure all connections are tight Replace and secure all electrical box covers and access panels before leaving the unit or turning on the power to the unit U Un ni it t I In ns st ta al ll la at ti io on n ...

Page 19: ...e O Op pe er ra at ti in ng g P Pr re es ss su ur re e C Ch he ec ck ks s After the unit has operated in the cooling mode for a short period of time install pressure gauges on the gauge ports of the discharge and suction line valves behind the Compressor access panel Check the suction and discharge pressures and compare them to the normal operating pressures provided in the unit s SERVICE FACTS N ...

Page 20: ...tat Power is provided from Y Y to the compressor contactor C CC C which starts the compressor and outdoor fan motor The indoor thermostat contact T TS SH H 1 1 also provides power to G G terminal on the indoor thermostat energizing the indoor fan motor S Su up pp pl le em me en nt ta ar ry y H He ea at t The supplementary electric heat is brought on when the indoor temperature drops 1 1 2 degrees ...

Page 21: ...e same type and size D Do o n no ot t a at tt te em mp pt t t to o c cl le ea an n d di is sp po os sa ab bl le e f fi il lt te er rs s Permanent type filters can be cleaned by washing them with a mild detergent and water Make sure that the filters are thoroughly dry before reinstalling them in the unit or duct system N No ot te e It may be necessary to replace permanent filters annually if washin...

Page 22: ...ion the status LED will flash once each second when idle or twice each second with a call for heating or cooling P PI IN N I Id de en nt ti if fi ic ca at ti io on n 1 TEST_COMMON Shorting any of the other pins to this pin causes the function of the other pin to be executed Leaving this pin open results in the normal mode of operation 2 FRC_DFT Forced Defrost Short TEST_COMMON to this pin speeds u...

Page 23: ... 2972 0 21 135 00 57 22 2683 0 19 Example Sensor temp 19 F Measured Resistance 46K ohms This sensor is good since the measured value is relatively close to the chart value Table 13 Demand Defrost Quick Specifications COMPRESSOR SCROLL SCROLL MNEMONIC NO CNT 07824 07825 GROUP NOMENCLATURE a G01 G04 G06 G02 G07 SUPERSEDURE CNT NA NA OD FAN TYPE PSC ECM PSC ECM 1 SPD 1 SPD DEFROST ENABLED Y ON COIL T...

Page 24: ...e first soft lockout occurs on the 4th defrost that was entered before the learning routine could complete in the same heating call It is announced with a 5 flash and a 6 flash fault After this first 15 minute soft lockout the system will return to normal operation Should this continue operating in this manner there will be a 30 minute soft lockout and so on At the end of the lockout process if a ...

Page 25: ...T BULB67 F 3 AT INTERSECTION ACTUAL 4 DISCHARGEPRESSURE 750 CFM CFM IS336 PSIG DISCHARGEPRESSURESHOULDBE 10 PSI OFCHART 5 SUCTIONPRESSURE 750 CFM CFM IS138 PSIG SUCTIONPRESSURESHOULDBE 3 PSIGOFCHART DWG NO 4WCC4024E1 110 115 120 125 130 135 140 145 150 155 160 165 170 40 60 80 100 120 200 250 300 350 400 450 500 40 60 80 100 120 1 1 3 3 5 4 2 2 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 6...

Page 26: ... F 3 AT INTERSECTION ACTUAL 4 DISCHARGEPRESSURE 950 CFM CFM IS332 PSIG DISCHARGEPRESSURESHOULDBE 10 PSI OFCHART 5 SUCTIONPRESSURE 950 CFM CFM IS147 PSIG SUCTIONPRESSURESHOULDBE 3 PSIGOFCHART DWG NO 4WCC4030E1 110 115 120 125 130 135 140 145 150 155 160 165 170 40 60 80 100 120 200 250 300 350 400 450 500 40 60 80 100 120 1 1 3 3 5 4 2 2 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 63 AND 59...

Page 27: ...F 3 AT INTERSECTION ACTUAL 4 DISCHARGEPRESSURE 1050 CFM CFM IS324 PSIG DISCHARGEPRESSURESHOULDBE 10 PSI OFCHART 5 SUCTIONPRESSURE 1050 CFM CFM IS141 PSIG SUCTIONPRESSURESHOULDBE 3 PSIGOFCHART DWG NO 4WCC4036E1 110 115 120 125 130 135 140 145 150 155 160 165 170 40 60 80 100 120 200 250 300 350 400 450 500 40 60 80 100 120 1 1 3 3 5 4 2 2 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 63 AND 5...

Page 28: ...7 F 3 AT INTERSECTION ACTUAL 4 DISCHARGEPRESSURE 1350 CFM CFM IS322 PSIG DISCHARGEPRESSURESHOULDBE 10 PSI OFCHART 5 SUCTIONPRESSURE 1350 CFM CFM IS PSIG SUCTIONPRESSURESHOULDBE 3 PSIGOFCHART DWG NO 4WCC4042E1 110 115 120 125 130 135 140 145 150 155 160 165 170 40 60 80 100 120 200 250 300 350 400 450 500 40 60 80 100 120 1 1 3 3 5 4 2 2 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 63 AND 59...

Page 29: ... 63 AND 59 DEG INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 63 AND 59 30 40 50 60 70 80 90 100 110 120 130 140 5 5 15 25 35 45 55 65 200 225 250 275 300 325 350 375 400 425 450 475 500 5 5 15 25 35 45 55 65 INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 80 70 AND 60 DEG F INDOOR ENTERING DRY BULB CURVES TOP TO BOTTOM 80 70 AND 60 DEG F OUTDOOR TEMPERATURE Degree F COOLINGPERFORMANCECANBECHEC...

Page 30: ...F 3 AT INTERSECTION ACTUAL 4 DISCHARGEPRESSURE 1850 CFM CFM IS319 PSIG DISCHARGEPRESSURESHOULDBE 10 PSI OFCHART 5 SUCTIONPRESSURE 1850 CFM CFM IS140 PSIG SUCTIONPRESSURESHOULDBE 3 PSIGOFCHART DWG NO 4WCC4060E1 110 115 120 125 130 135 140 145 150 155 160 165 170 40 60 80 100 120 200 250 300 350 400 450 500 40 60 80 100 120 1 1 3 3 5 4 2 2 INDOOR ENTERING WET BULB CURVES TOP TO BOTTOM 71 67 63 AND 5...

Page 31: ...1102 1091 1046 1035 993 983 938 928 877 868 MED HIGH Watts 240 242 252 253 263 264 273 274 CFM 1085 1074 1032 1022 978 969 934 925 HIGH Watts 308 308 319 319 329 329 340 340 350 350 CFM 1116 1105 1069 1058 1031 1021 968 958 926 917 Note Airflow must not exceed 1125 CFM due to condensate blowoff 4WCC4036E1 Motor Speed 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 LOW Watts 145 146 152 153 159 159 CFM 1...

Page 32: ... 1678 1661 1644 1628 1612 1596 1578 1562 MED HIGH Watts 536 547 559 570 562 573 575 586 588 600 600 612 612 625 CFM 1789 1771 1731 1713 1724 1707 1693 1676 1661 1645 1630 1614 1600 1584 HIGH Watts 601 613 613 625 631 644 643 656 647 660 CFM 1806 1788 1769 1751 1728 1711 1688 1671 1652 1635 Note Airflow must not exceed 1800 CFM due to condensate blowoff 4WCC4060E1 Motor Speed 0 0 0 1 0 2 0 3 0 4 0 ...

Page 33: ...XPANSION VALVE INTERNALLY CHECKED EXPANSION VALVE DISTRIBUTOR SWITCHOVER VALVE EQUALIZER LINE SOV COIL HEATING SCHRADER VALVE LO INDOOR COIL EXPANSION VALVE BULB OUTDOOR COIL LPCO EQUALIZER LINE SCHRADER VALVE LIQUID LIQUID LINE BI FLOW DRIER INDICATES DIRECTION OF REFRIGERATION FLOW COMPRESSOR HPCO EXPANSION VALVE BULB SCHRADER VALVE HI INTERNALLY CHECKED EXPANSION VALVE INTERNALLY CHECKED EXPANS...

Page 34: ... TXV Stuck Open Low Superheat High Superheat Restricted I D Airflow Ref Circuit Restrictions REFRIGERANT CIRCUIT Liquid Pressure too High P S P S S Liquid Pressure too Low S P S S S Suction Pressure too High S P P S S Suction Pressure too Low S S P S Liquid Refrigerant Floodback TXV System S S P I D Coil Frosting P S P S Compressor Runs Inadequate or No Cooling S P P S S S S P S ELECTRICAL Compres...

Page 35: ...18 BB41D1 1A EN 35 N No ot te es s ...

Page 36: ...ctices 18 BB41D1 1A EN 11 Feb 2022 Supersedes New 2022 Important Product Information Packaged Unit Serial Number_____________________________________________________ Packaged Unit Model Number_____________________________________________________ Date of Installation_______________________________________________________________ Dealer________________________________________________________________...

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