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2. Place SYSTEM switch in COOL position and FAN switch in

AUTO position. Set control below room temperature. Observe
that cooling cycle shuts down when control setting is satisfied.

3. Place system switch in HEAT position. Set control above

room temperature. Observe that compressor, outdoor fan, and
indoor blower motors start. Observe that heating cycle shuts
down when control setting is satisfied.

4. When using an automatic changeover room thermostat, place

both SYSTEM and FAN switches in AUTO positions. Ob-
serve that unit operates in Cooling mode when temperature
control is set to ‘‘call for Cooling’’ (below room temperature),
and unit operates in Heating mode when temperature control
is set to "call for Heating" (above room temperature).

IMPORTANT:

Three-phase, scroll compressors are direction ori-

ented. Unit must be checked to ensure proper compressor 3-phase
power lead orientation. If not corrected within 5 min., the internal
protector will shut off the compressor. The 3-phase power leads to
the unit must be reversed to correct rotation. When turning
backwards, scroll compressors emit elevated noise levels, and the
difference between compressor suction and discharge pressures
may be dramatically lower than normal.

CHECKING AND ADJUSTING REFRIGERANT CHARGE

— The refrigerant system is fully charged with R-22 refrigerant

and is tested and factory sealed.

NOTE:

Adjustment of the refrigerant charge is not required

unless the unit is suspected of not having the proper R-22 charge.

Table 4A—Wet Coil Air Delivery

Unit 50JS 018-060 (Deduct 10% for 208v)*

UNIT

MOTOR SPEED

EXTERNAL STATIC PRESSURE (IN. WG)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

018

Low

Watts

-

-

-

214

191

170

-

-

-

-

-

Cfm

-

-

-

821

696

575

-

-

-

-

-

Med

Watts

-

-

-

-

-

-

-

-

-

-

-

Cfm

-

-

-

-

-

-

-

-

-

-

-

High

Watts

-

-

-

-

283

274

267

-

-

-

-

Cfm

-

-

-

-

848

707

555

-

-

-

-

024

Low

Watts

-

-

237

214

191

-

-

-

-

-

-

Cfm

-

-

971

821

696

-

-

-

-

-

-

Med

Watts

-

-

-

-

368

366

365

360

-

-

-

Cfm

-

-

-

-

957

872

785

688

-

-

-

High

Watts

-

-

-

-

-

-

-

425

414

-

-

Cfm

-

-

-

-

-

-

-

891

735

-

-

30

Low

Watts

295

292

289

-

-

-

-

-

-

-

-

Cfm

928

882

802

-

-

-

-

-

-

-

-

Med

Watts

388

383

377

372

366

361

-

-

-

-

-

Cfm

1203

1120

1062

1004

930

838

-

-

-

-

-

High

Watts

-

-

-

-

469

458

449

442

-

-

-

Cfm

-

-

-

-

1141

1027

924

828

-

-

-

36

Low

Watts

592

581

567

552

538

525

512

499

-

-

-

Cfm

1499

1421

1351

1281

1207

1125

1034

936

-

-

-

Med

Watts

-

-

-

660

636

617

603

592

581

566

-

Cfm

-

-

-

1475

1371

1274

1186

1105

1024

928

-

High

Watts

-

-

-

-

-

776

761

744

725

706

689

Cfm

-

-

-

-

-

1452

1356

1254

1145

1030

910

42

Low

Watts

606

596

586

575

563

550

537

-

-

-

-

Cfm

1464

1399

1341

1282

1218

1146

1066

-

-

-

-

Med

Watts

680

665

649

635

622

611

600

590

-

-

-

Cfm

1608

1535

1461

1387

1316

1247

1180

1111

-

-

-

High

Watts

768

755

742

730

718

707

696

684

671

-

-

Cfm

1656

1576

1508

1447

1390

1331

1268

1198

1119

-

-

48

Low

Watts

741

724

709

690

664

631

594

562

543

552

-

Cfm

1994

1937

1869

1797

1722

1645

1566

1480

1384

1269

-

Med

Watts

-

-

-

773

744

715

687

662

640

625

-

Cfm

-

-

-

1957

1867

1787

1719

1653

1575

1463

-

High

Watts

-

-

-

-

-

799

782

773

756

704

-

Cfm

-

-

-

-

-

1914

1842

1774

1686

1538

-

60

Low

Watts

742

723

698

666

629

591

559

540

-

-

-

Cfm

2197

2141

2103

2057

1988

1894

1783

1674

-

-

-

Med

Watts

838

822

803

780

752

721

689

661

639

632

-

Cfm

2485

2406

2269

2127

2012

1937

1894

1855

1770

1571

-

High

Watts

-

934

913

891

866

837

806

776

750

735

-

Cfm

-

2483

2391

2283

2170

2061

1960

1868

1780

1687

-

* Air delivery values are based on operating voltage of 230 v or 460 v, wet coil, without filter or electric heater. Deduct filter and electric heater pressure drops to obtain

static pressure available for ducting.

NOTES:
1. Do not operate the unit at a cooling airflow that is less than 350 cfm for each 12,000 Btuh of rated cooling capacity. Evaporator coil frosting may occur at airflows below

this point.

2. Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended.

3. Deduct 10% for 208v.

17

Содержание 50JS

Страница 1: ...s that may apply Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for unbrazing operations Have fire extinguisher available for all brazing operations Improper installation adjustment alteration service mainte nance or use can cause explosion fire electric shock or other occurrences which could cause serious injury or death or damage your property Consult a qualified...

Страница 2: ...X036 208 230 1 60 208 230 3 60 460 3 60 328 148 8 37 02 940 3 20 0 508 19 0 482 6 16 5 419 1 Fig 2 50JS018 042 50JX024 036 Unit Dimensions C99007 REQUIRED CLEARANCE FOR OPERATION AND SERVICING INCHES mm EVAP COIL ACCESS SIDE 36 00 914 0 POWER ENTRY SIDE 42 00 1066 8 EXCEPT FOR NEC REQUIREMENTS UNIT TOP 48 00 1219 2 SIDE OPPOSITE DUCTS 36 00 914 0 DUCT PANEL 12 00 304 8 MINIMUM DISTANCES IF UNIT IS...

Страница 3: ...S048 060 50JX042 060 Unit Dimensions C99006 REQUIRED CLEARANCE FOR OPERATION AND SERVICING INCHES mm EVAP COIL ACCESS SIDE 36 00 914 0 POWER ENTRY SIDE 36 00 914 0 EXCEPT FOR NEC REQUIREMENTS UNIT TOP 48 00 1219 2 SIDE OPPOSITE DUCTS 36 00 914 0 DUCT PANEL 12 00 304 8 MINIMUM DISTANCES IF UNIT IS PLACED LESS THAN 304 8 12 00 FROM WALL SYSTEM THEN SYSTEM PERFORMANCE MAYBE COMPROMISE REQUIRED CLEARA...

Страница 4: ...SE PAN BOTTOM SUPPLY 0 75 SIDE PANEL SUPPORT RIB S COUNTER FLASHING FIELD SUPPLIED NAILER ROOFING FELT FIELD SUPPLIED CANT STRIP FIELD SUPPLIED ROOFING MATERIAL FIELD SUPPLIED INSULATION FIELD SUPPLIED SEAL STRIP FACTORY SUPPLIED A99340 3 2 13 16 7 8 A END VIEW SUPPORT B SUPPORT A 2 SIDE 2 DECK PAN INSULATED 17 3 8 TYP D C 46 3 16 44 5 16 B 1 TYP END 2 B A99320 UNIT SIZE ODS CATALOG NUMBER A IN MM...

Страница 5: ... minimum clearance of 36 in IMPORTANT Do not restrict outdoor airflow An air restriction at either the outdoor air inlet or the fan discharge may be detrimental to compressor life Do not place the unit where water ice or snow from an overhang or roof will damage or flood the unit Do not install the unit on carpeting tile or other combustible materials Slab mounted units should be at least 4 in abo...

Страница 6: ...element 3 Size ductwork for cooling air quantity cfm The minimum air quantity for proper electric heater operation is listed in Tables 2A and 2B Heater limit switches may trip at air quantities below those recommended 4 Seal insulate and weatherproof all external ductwork Seal insulate and cover with a vapor barrier all ductwork passing through conditioned spaces Follow latest Sheet Metal and Air ...

Страница 7: ... 2 3 3 1 2 4 5 OPERATING WEIGHT lb 299 320 328 350 355 420 COMPRESSOR QUANTITY 1 TYPE SCROLL COMPRESSOR REFRIGERANT R 22 REFRIGERANT METERING DEVICE Accurater Refrigerant R 22 Quantity lb 5 5 6 4 7 0 10 8 10 4 12 3 ORIFICE ID in 0 065 0 073 0 076 0 080 0 088 0 0 93 ORIFICE OD in 0 055 0 065 0 067 2 0 052 2 0 057 2 0 063 OUTDOOR COIL Rows Fins in Face Area sq ft 1 17 14 6 2 17 10 9 2 17 10 9 2 17 1...

Страница 8: ...ath Failure to follow these precautions could result in damage to the unit being installed 1 Make all electrical connections in accordance with NEC ANSI NFPA latest edition and local electrical codes governing such wiring In Canada all electrical connec tions must be in accordance with CSA standard C22 1 Canadian Electrical Code Part 1 and applicable local codes Refer to unit wiring diagram 2 Use ...

Страница 9: ...OR FAN MOTOR LPS LOW PRESSURE SWITCH OFM OUTDOOR FAN MOTOR QT QUADRUPLE TERMINAL RVS REVERSING VALVE SOLENOID S B SLOW BLOW FUSE TC THERMOSTAT COOLING TDR TIME DELAY RELAY TH THERMOSTAT HEATING TRAN TRANSFORMER NOTES 1 IF ANY OF THE ORIGINAL WIRES FURNISHED ARE REPLACED IT MUST BE REPLACED WITH TYPE 90 DEGREE C WIRE OR IT S EQUIVALENT 2 SEE PRICE PAGES FOR THERMOSTAT AND SUBBASES 3 USE 75 DEGREE C...

Страница 10: ...Fig 13 Wiring Schematics A00074 ...

Страница 11: ...N MOTOR LPS LOW PRESSURE SWITCH OFM OUTDOOR FAN MOTOR OFR OUTDOOR FAN RELAY QT QUADRUPLE TERMINAL RVS REVERSING VALVE SOLENOID TC THERMOSTAT COOLING TDR TIME DELAY RELAY TH THERMOSTAT HEATING TRAN TRANSFORMER NOTES 1 IF ANY OF THE ORIGINAL WIRES FURNISHED ARE REPLACED IT MUST BE REPLACED WITH TYPE 90 DEGREE C WIRE OR IT S EQUIVALENT 2 SEE PRICE PAGES FOR THERMOSTAT AND SUBBASES 3 USE 75 DEGREE COP...

Страница 12: ... 0 108 9 40 40 40 40 50 60 90 0 100 110 208 230 3 60 187 253 12 4 90 0 9 3 8 3 8 5 7 5 10 11 3 15 15 19 94 10 4 12 20 8 24 1 31 3 36 1 41 6 48 20 2 20 2 20 2 20 2 30 8 34 8 43 8 49 9 56 7 64 7 25 25 25 25 35 35 45 50 60 70 460 3 60 414 506 6 7 45 0 8 1 8 5 10 15 15 20 6 0 12 0 18 0 24 1 11 0 11 0 17 3 24 8 32 3 15 15 20 25 35 048 208 230 1 60 187 253 24 4 140 1 5 3 5 3 8 5 7 5 10 11 3 15 15 20 18 ...

Страница 13: ...110 208 230 3 60 187 253 12 4 88 0 9 4 1 3 75 5 0 7 5 10 11 3 15 15 0 20 0 10 4 12 0 20 8 24 1 31 3 36 1 41 6 48 0 20 5 20 5 20 5 20 5 31 2 35 2 44 2 50 2 57 1 65 1 25 25 25 25 35 40 45 60 60 70 460 3 60 414 506 5 8 44 0 9 2 0 5 10 15 20 6 12 18 24 10 2 10 2 17 5 25 1 32 6 15 15 20 30 35 048 208 230 1 60 187 253 23 4 104 1 6 4 1 3 75 5 0 7 5 10 11 3 15 15 0 20 0 18 1 20 36 1 41 7 54 2 62 5 72 2 83...

Страница 14: ... Overcurrent Protection RLA Rated Load Amps NOTES 1 In compliance with NEC National Electrical Code requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be Power Supply fuse The CGA Canadian Gas Association units may be fuse or circuit breaker 2 Minimum wire size is based on 60 C copper wire If other than ...

Страница 15: ...ted and tight d Inspect coil fins If damaged during shipping and handling carefully straighten fins with a fin comb 4 Verify the following conditions a Make sure that outdoor fan blade is correctly positioned in fan orifice b Make sure that condensate drain pan and trap are filled with water to ensure proper drainage c Make sure that all tools and miscellaneous loose parts have been removed 5 Comp...

Страница 16: ...Switch Accurater Metering Device Arrow indicates direction of flow Metering Position Bypass Position Fig 21 Typical Heat Pump Operation Heating Mode 1 Hot gas from compressor flows through the 4 way valve and is directed to the indoor coil It is then condensed and subcooled through the coil circuits and then leaves the indoor coil by way of the ID Accurater in the bypass position to the liquid lin...

Страница 17: ...tts Cfm High Watts 283 274 267 Cfm 848 707 555 024 Low Watts 237 214 191 Cfm 971 821 696 Med Watts 368 366 365 360 Cfm 957 872 785 688 High Watts 425 414 Cfm 891 735 30 Low Watts 295 292 289 Cfm 928 882 802 Med Watts 388 383 377 372 366 361 Cfm 1203 1120 1062 1004 930 838 High Watts 469 458 449 442 Cfm 1141 1027 924 828 36 Low Watts 592 581 567 552 538 525 512 499 Cfm 1499 1421 1351 1281 1207 1125...

Страница 18: ...k for Refrigerant Leaks section Table 4B Wet Coil Air Delivery Unit 50JX 024 060 Deduct 10 for 208v UNIT MOTOR SPEED EXTERNAL STATIC PRESSURE IN WG 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 024 Low Watts 275 273 271 270 Cfm 923 844 754 669 Med Watts 359 353 350 347 341 Cfm 941 876 814 737 622 High Watts 447 439 431 423 Cfm 968 869 765 659 30 Low Watts 276 276 272 Cfm 963 929 781 Med Watts 375 37...

Страница 19: ...620 551 483 414 345 276 207 100 90 80 70 60 50 40 30 018 60HZ CHARGING CHART 20 0 30 0 40 0 50 0 60 0 70 0 80 0 OUTDOOR TEMP F C 115 46 125 52 45 7 55 13 65 18 75 24 95 35 105 41 85 29 50JS500087 Fig 24 Cooling Charging Chart 50JS 024 Units C00027 SUCTION LINE PRESSURE KILOPASCALS SUCTION LINE PRESSURE PSIG 7 1 4 10 16 21 27 SUCTION LINE TEMPERATURE F SUCTION LINE TEMPERATURE C 758 689 620 551 483...

Страница 20: ...ity of a maintenance contract The ability to properly perform maintenance on this equip ment requires certain expertise mechanical skills tools and equipment If you do not possess these do not attempt to perform any maintenance on this equipment other than those procedures recommended in the User s Manual FAILURE TO HEED THIS WARNING COULD RESULT IN SERI OUS INJURY OR DEATH AND POSSIBLE DAMAGE TO ...

Страница 21: ...1 95 35 85 29 75 24 65 18 55 13 45 7 SUCTION LINE TEMPERATURE DEG C SUCTION LINE TEMPERATURE DEG F Fig 33 Cooling Charging Chart 50JX 042 Units C99034 689 100 0 30 0 40 0 50 0 60 0 70 0 80 0 90 0 207 276 345 414 483 551 620 SUCTION LINE PRESSURE KILOPASCALS SUCTION LINE PRESSURE PSIG 20 0 7 27 21 16 10 4 1 80 0 70 0 60 0 50 0 40 0 30 0 50JX500222 042 60 Hz CHARGING CHART OUTDOOR TEMP F C 125 52 11...

Страница 22: ...een the coils Be sure to flush all dirt and debris from the unit base Inspect the drain pan and condensate drain line when inspecting the coils Clean the drain pan and condensate drain by removing all foreign matter from the pan Flush the pan and drain trough with clear water Do not splash water on the insulation motor wiring or air filter s If the drain trough is restricted clear it with a plumbe...

Страница 23: ...n switch is set on AUTO the TDR is probably defective and must be replaced LOSS OF CHARGE SWITCH The loss of charge switch is a protective device wired into control circuit low voltage It shuts off the compressor if abnormally low pressures are present in the refrigeration circuit NOTE Because these switches are attached to refrigeration system under pressure it is not advisable to remove this dev...

Страница 24: ...ne cause Insufficient line voltage Determine cause and correct Blocked outdoor coil Determine cause and correct Defective run start capacitor overload or start relay Determine cause and replace Defective thermostat Replace thermostat Faulty outdoor fan motor or capacitor Replace Damaged reversing valve Determine cause and correct Restriction in refrigerant system Locate restriction and remove Comp...

Страница 25: ...t is incompatible with motor If voltage is less than 1 2 the motor has failed IFM operation is intermittent Water dripping into motor Verify proper drip loops in connector wires Connectors not firmly sealed Gently pull wires individually to be sure they are crimped into the housing IFM Indoor Fan Motor START UP CHECKLIST REMOVE AND STORE IN JOB FILE I PRELIMINARY INFORMATION Model No Serial No Dat...

Страница 26: ...26 ...

Страница 27: ...27 ...

Страница 28: ...6231 50js1si Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Tab 5a 5a PC 101 Catalog No 565 057 Printed in U S A Form 50JS JX 1SI Pg 28 5 00 Replaces 50JX 2SI ...

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