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19

WET COIL AIR DELIVERY UNIT 50SZ024--060

230 VOLT

UNIT

SIZE

MOTOR SPEED

EXTERNAL STATIC PRESSURE (IN. WC)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

024

LO

Watts

311

309

304

301

286

⎯

—

—

—

—

CFM

935

885

820

757

686

—

—

—

—

—

MED

Watts

—

—

—

—

379

357

357

345

—

—

CFM

—

—

—

—

957

868

769

647

—

—

HI

Watts

—

—

—

—

—

—

447

435

421

—

CFM

—

—

—

—

—

—

970

853

712

—

030

LO

Watts

311

309

304

301

—

—

—

—

—

—

CFM

935

885

820

757

—

—

—

—

—

—

MED

Watts

411

405

398

390

379

357

357

—

—

—

CFM

1195

1155

1100

1028

957

868

769

—

—

—

HI

Watts

—

—

—

—

477

467

447

435

—

—

CFM

—

—

—

—

1185

1088

970

853

—

—

036

LO

Watts

437

433

424

417

403

391

379

362

—

—

CFM

1353

1318

1283

1235

1187

1123

1059

975

—

—

MED

Watts

—

—

—

531

516

496

478

459

435

—

CFM

—

—

—

1489

1437

1362

1289

1208

1099

—

HI

Watts

—

—

—

—

—

—

—

629

602

—

CFM

—

—

—

—

—

—

—

1470

1357

—

042

LO

Watts

625

606

586

571

550

534

509

483

457

—

CFM

1539

1496

1466

1437

1387

1330

1264

1183

1093

—

MED

Watts

—

741

715

694

669

645

610

4573

544

—

CFM

—

1738

1698

1653

1604

1538

1457

1362

1271

—

HI

Watts

—

—

—

—

—

798

772

738

700

—

CFM

—

—

—

—

—

1720

1648

1540

1414

—

048

LO

Watts

627

617

607

584

567

548

582

503

—

—

CFM

1550

1530

1493

1461

1414

1361

1320

1250

—

—

MED

Watts

1771

755

734

711

690

665

639

607

572

—

CFM

1798

1771

1734

1687

1645

1595

1530

1449

1355

—

HI

Watts

⎯

⎯

908

887

858

827

804

4767

748

—

CFM

⎯

⎯

2000

1944

1876

1811

1735

1647

1555

—

060

LO

Watts

786

769

754

736

722

705

684

658

—

—

CFM

2027

1960

1901

1821

1759

1693

1616

1513

—

—

MED

Watts

873

849

833

815

798

782

763

748

—

—

CFM

2095

2026

1962

1887

1817

1748

1679

1583

—

—

HIGH

Watts

1012

993

981

963

948

927

904

886

—

—

CFM

2109

2036

1963

1886

1812

1729

1647

1646

—

—

*Air delivery values are based on operating voltage of 230v, 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 air-
flows 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.

FILTER PRESSURE DROP (in. wc)

UNIT SIZE

FILTER

SIZE X 1

(in.)

CFM

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300

024,030

20 x 20

0.05 0.07 0.08 0.10 0.12 0.13 0.14 0.15

—

—

—

—

—

—

—

036

20 x 24

—

—

—

—

0.09 0.10 0.11 0.13 0.14 0.15 0.16

042--060

24 x 30

—

—

—

—

—

—

—

0.07 0.08 0.09 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18

50SZ

Содержание 50SZ Series

Страница 1: ...ystem is designed to provide dependability Liquid refrigerant strainers are used to promote clean unrestricted opera tion Each unit leaves the factory with a full refrigerant charge Re frigerant service connections make checking operating pressures easier Low Pressure Loss of Charge Switch assures added safety and reliability for the compressor Indoor and outdoor coils are computer designed for op...

Страница 2: ...FITS 1 MODEL NUMBER NOMENCLATURE 2 ARI CAPACITY RATINGS 3 PHYSICAL DATA 4 ACCESSORIES 5 DIMENSIONAL DRAWINGS 7 8 SELECTION PROCEDURE 10 PERFORMANCE DATA 11 18 APPLICATION DATA 21 ELECTRICAL DATA 22 TYPICAL WIRING SCHEMATICS 23 24 CONTROLS 25 GUIDE SPECIFICATIONS 26 27 MODEL NUMBER NOMENCLATURE 50SZ 024 Type of Unit 50SZ Single Packaged Heat Pump Unit Electrical Supply 3 208 230 1 60 Nominal Coolin...

Страница 3: ...t of Energy test procedures and or ARI Standard 210 240 03 Tested in accordance with ARI Standard 270 95 not listed in ARI NOTES 1 Ratingsarenetvalues reflectingtheeffects ofcirculating fanheat Ratings are based on Cooling Standard 80_F 26 6_C db 67_F 19 4_C wb indoor entering air temperature and 95_F 35_C db outdoor entering air temperature 2 Before purchasing this appliance read important energy...

Страница 4: ...9x254 Motor HP RPM 1 3 1050 1 3 1050 1 2 1000 1 2 1075 1 2 1075 1 1040 Return Air Filters in Throwaway 20x24x1 20x24x1 24x36x1 24x36x1 24x36x1 24x36x1 Return Air Filters mm Throwaway 208x610x25 208x610x25 610x914x25 610x914x25 610x914x25 610x914x25 REGISTERED ISO 9001 2000 ELECTRIC HEAT PRESSURE DROP TABLES w c Small Cabinet 024 030 STATIC CFM 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600...

Страница 5: ...ol for the system heating and cooling functions Thermostat models are available in both programmable and non programmable versions Controls upgrade kit supplies highand lowpressure safetyprotec tion and protects the unit from operating in unsuitable conditions Crankcase heater provides anti floodback protection for low load cooling applications Rigging kit includes lifting brackets which are inser...

Страница 6: ...DISCHARGE REPLACEMENT PANEL HOLE FOR ECONOMIZER WIRING HARDNESS DOOR LATCH ANGLE HINGED FILTER ACCESS DOOR INSTALL FILTER ACCESS DOOR STICKER ALUMINUM FILTER RAINHOOD 11 13 32 17 13 32 16 1 4 EV APORATOR COIL TOP FILTER RACK BEND FLANGE AT 90 SCREW TO DIVIDER WITH 1 IN SCREW BOTTOM FILTER RACK DAMPER BLADE MANUAL OUTSIDE AIR HOOD REPLACEMENT PANEL ECONOMIZER FILTER RACK MANUAL OUTSIDE AIR DAMPER A...

Страница 7: ...P OF UNIT 14 00 355 6 DUCT SIDE OF UNIT 2 00 50 8 SIDE OPPOSITE DUCTS 14 00 355 6 BOTTOM OF UNIT 0 50 12 7 NEC REQUIRED CLEARANCES INCHES mm BETWEEN UNITS POWER ENTRY SIDE 42 00 1066 8 UNIT AND UNGROUNDED SURFACES POWER ENTRY SIDE 36 00 914 0 UNIT AND BLOCK OR CONCRETE WALLS AND OTHER GROUNDED SURFACES POWER ENTRY SIDE 42 00 1066 8 Refer to Maximum Operating Clearances A05162 UNIT ELECTRICAL CHARA...

Страница 8: ...7 NEC REQUIRED CLEARANCES INCHES mm BETWEEN UNITS POWER ENTRY SIDE 42 00 1066 8 UNIT AND UNGROUNDED SURFACES POWER ENTRY SIDE 36 00 914 0 UNIT AND BLOCK OR CONCRETE WALLS AND OTHER GROUNDED SURFACES POWER ENTRY SIDE 42 00 1066 8 Refer to Maximum Operating Clearances A05126 UNIT ELECTRICAL CHARACTERISTICS UNIT WEIGHT UNIT HEIGHT IN MM A CENTER OF GRAVITY IN MM lb kg X Y Z 50SZ036 208 230 1 60 208 2...

Страница 9: ...late d deck pan Short Support CTyp G E F G D E A05308 UNIT SIZE ODS CATALOG NUMBER A IN MM B IN MM C IN MM D IN MM E IN MM F IN MM G IN MM 50SZ024 030 CPRFCURB006A00 8 203 11 279 16 1 2 419 28 3 4 730 30 3 8 771 44 5 16 1126 45 15 16 1167 CPRFCURB007A00 14 356 11 279 16 1 2 419 28 3 4 730 30 3 8 771 44 5 16 1126 45 15 16 1167 50SZ036 060 CPRFCURB008A00 8 203 16 3 16 411 17 3 8 441 40 1 4 1022 41 1...

Страница 10: ...tering at 1125 cfm and 67_F 19 4 C ewb entering wet bulb Theunit willprovide atotal cooling capacity of 30 900 Btuh and a sensible heat capacity of 24 800 Btuh For indoor air temperature other than 80_F 26 6 C edb entering dry bulb calculate sensible heat capacity correction as required using the formula found in Note 3 following the cooling capacities tables NOTE Unit ratings are net capacities I...

Страница 11: ... C CFM Standard Air AIR TEMPERATURE ENTERING OUTDOOR COIL F C 10 23 3 0 17 7 10 12 2 17 8 3 20 6 6 30 1 1 40 4 4 47 8 3 50 10 60 15 5 60 15 5 700 TC 7 6 7 0 9 6 8 8 11 6 10 7 13 3 12 1 14 1 12 8 17 0 14 9 20 2 20 2 22 7 22 7 23 7 23 7 27 4 27 4 kW 1 42 1 48 1 58 1 65 1 67 1 75 1 82 1 87 1 89 1 98 800 TC 7 6 7 1 9 5 8 7 11 7 10 7 13 4 12 2 14 2 12 9 17 1 15 0 20 3 20 3 22 8 22 8 23 8 23 8 27 5 27 5...

Страница 12: ...tandard Air AIR TEMPERATURE ENTERING OUTDOOR COIL F C 10 23 3 0 17 7 10 12 2 17 8 3 20 6 6 30 1 1 40 4 4 47 8 3 50 10 60 15 5 60 15 5 875 TC 9 6 8 9 11 9 10 9 14 4 13 2 16 2 14 8 17 4 15 8 21 6 18 9 25 4 25 4 29 3 29 3 30 6 30 6 35 3 35 3 kW 1 74 1 84 1 94 2 00 2 04 2 18 2 31 2 42 2 46 2 58 1000 TC 9 7 8 9 11 9 11 0 14 4 13 2 16 3 14 9 17 5 15 8 21 7 19 0 25 6 25 6 29 4 29 4 30 8 30 8 36 3 36 3 kW...

Страница 13: ...ard Air AIR TEMPERATURE ENTERING OUTDOOR COIL F C 10 23 3 0 17 7 10 12 2 17 8 3 20 6 6 30 1 1 40 4 4 47 8 3 50 10 60 15 5 60 15 5 1050 TC 10 9 10 1 14 0 12 9 17 2 15 8 19 5 17 8 20 8 18 9 25 5 22 4 31 1 31 1 35 5 35 5 37 3 35 1 43 5 43 5 kW 2 03 2 16 2 27 2 34 2 39 2 56 2 75 2 89 2 93 3 12 1200 TC 11 0 10 2 14 2 13 0 17 3 15 9 19 6 17 9 20 9 19 0 25 7 22 5 31 3 31 3 35 8 35 8 35 4 37 6 43 9 43 9 k...

Страница 14: ...ir AIR TEMPERATURE ENTERING OUTDOOR COIL F C 10 23 3 0 17 7 10 12 2 17 8 3 20 6 6 30 1 1 40 4 4 47 8 3 50 10 60 15 5 60 15 5 1225 TC 13 8 12 8 17 1 15 7 20 5 18 8 23 1 21 1 24 7 22 4 30 4 26 7 37 1 37 1 39 7 39 7 41 6 41 6 48 2 48 2 kW 2 50 2 63 2 76 2 85 2 91 3 11 3 29 3 44 3 51 3 75 1400 TC 13 9 12 8 17 2 15 8 20 6 18 9 23 3 21 3 24 9 22 6 30 6 26 8 37 2 37 2 40 0 40 0 41 9 41 9 48 2 48 2 kW 2 4...

Страница 15: ...ir AIR TEMPERATURE ENTERING OUTDOOR COIL F C 10 23 3 0 17 7 10 12 2 17 8 3 20 6 6 30 1 1 40 4 4 47 8 3 50 10 60 15 5 60 15 5 1400 TC 14 7 13 6 18 6 17 1 23 0 21 1 26 5 24 1 28 2 25 6 3407 30 4 41 9 41 9 47 5 47 5 49 9 49 9 58 2 58 2 kW 2 74 2 90 3 06 3 18 3 23 3 46 3 69 3 86 3 94 4 27 1600 TC 15 1 14 0 19 1 17 6 23 5 21 5 26 9 24 5 28 7 26 0 35 1 30 8 42 4 42 4 48 1 48 1 50 4 50 4 58 8 58 8 kW 2 7...

Страница 16: ...r AIR TEMPERATURE ENTERING OUTDOOR COIL F C 10 23 3 0 17 7 10 12 2 17 8 3 20 6 6 30 1 1 40 4 4 47 8 3 50 10 60 15 5 60 15 5 1750 TC 17 8 16 4 22 8 21 0 28 1 25 8 32 3 29 4 34 5 31 3 42 8 37 5 49 2 49 2 56 0 56 0 58 4 58 4 66 4 66 4 kW 3 32 3 51 3 68 3 82 3 90 4 13 4 30 4 48 4 56 4 89 1875 TC 17 7 16 3 22 7 20 9 28 1 25 8 32 3 29 4 34 6 31 4 42 9 37 6 49 2 49 2 55 6 55 6 57 8 57 8 65 2 65 2 kW 3 22...

Страница 17: ...gs are net they account for the effects of the evaporator fan motor power and heat 2 Direct interpolation is permissible Do not extrapolate 3 The following formulas may be used Sensible capacity Btuh 1 10 x cfm tldb tedb Wet bulb temperature corresponding to enthalpy air leaving evaporator coil hlwb tlwb total capacity Btuh 4 5 x cfm hlwb hewb Where hewb Enthalpy of air entering evaporator coil 4 ...

Страница 18: ...10 20 30 40 50 60 70 10 0 10 17 20 30 40 47 50 60 Outdoor Air Temp Deg F 024 030 036 042 048 060 Based on Indoor Entering Air of 70 F and Rated CFM Building Heat Loss 1000BTUH Unit Integrated Heating Capacity x1000BTUH C00093 50SZ ...

Страница 19: ...71 1734 1687 1645 1595 1530 1449 1355 HI Watts 908 887 858 827 804 4767 748 CFM 2000 1944 1876 1811 1735 1647 1555 060 LO Watts 786 769 754 736 722 705 684 658 CFM 2027 1960 1901 1821 1759 1693 1616 1513 MED Watts 873 849 833 815 798 782 763 748 CFM 2095 2026 1962 1887 1817 1748 1679 1583 HIGH Watts 1012 993 981 963 948 927 904 886 CFM 2109 2036 1963 1886 1812 1729 1647 1646 Air delivery values ar...

Страница 20: ...EXIBLE DUCT CEILING CONCENTRIC DIFFUSER BOX FIELD SUPPLIED SUPPLY AIR FLEXIBLE DUCT ROOF MOUNTING CURB A99321 INDOOR THERMOSTAT DISCONNECT PER NEC FROM POWER SOURCE RETURN AIR TOP COVER National Electrical Code C99061 50SZ ...

Страница 21: ...serts in the downflow openings Remove the inserts similar to removing an electrical knockout Maximum cooling airflow To minimize the possibility of con densate blow off from the evaporator airflow through the units should not exceed 450 cfm ton Minimum cooling airflow Theminimum coolingairflow is350 cfm ton Minimum cooling ambient operating temperature All stan dard units have a minimum ambient op...

Страница 22: ...00 110 15 20 72 2 83 3 118 3 132 1 125 150 208 230 3 60 187 253 12 4 88 0 0 9 4 1 20 5 20 5 30 30 3 8 5 10 4 12 33 5 35 5 35 40 7 5 10 20 8 24 1 46 5 50 6 50 60 11 3 15 31 3 36 1 59 6 65 6 60 70 15 20 41 4 47 9 72 3 80 4 80 90 460 3 60 414 506 5 8 44 0 0 6 1 9 9 8 15 5 0 6 0 17 3 20 10 0 12 0 24 8 25 15 0 18 0 32 3 35 20 0 24 1 39 9 40 50SZ 048 208 230 1 60 187 253 18 3 109 0 1 5 4 1 28 5 28 5 40 ...

Страница 23: ...a phase imbalance in supply volt age is greater than 2 Use the following formula to determine the percentage of voltage imbalance Voltage imbalance max voltage deviation from average voltage 100 x average voltage EXAMPLE Supply voltage is 230 3 60 AB 228 v BC 231 v AC 227 v 228 231 227 Average Voltage 3 686 3 229 Determine maximum deviation from average voltage AB 229 BC 231 AC 229 Maximum deviati...

Страница 24: ...24 WIRING DIAGRAM 208 230 1 60 A06492 50SZ ...

Страница 25: ...25 WIRING DIAGRAM 208 230 3 60 A06750 50SZ ...

Страница 26: ...26 WIRING DIAGRAM 460 3 60 A06751 50SZ ...

Страница 27: ...R and starting IFM after a 1 second delay Should room temperature continue to fall circuit R W is made through second stage thermostat bulb If optional electric heat package is used a relay is energized bringing on first bank of sup plemental electric heat When thermostat is satisfied contacts open deenergizing contactor and relay motors and heaters deenergize The IFM is controlled by a time delay...

Страница 28: ...for side discharge will be standard on all sizes 15 Unit insulation conforms to ASHRAE 62P C Fans 1 The indoor fan shall be 3 speed direct drive as shown on equipment drawings 2 Fan wheel shall be made from steel and shall be double inlet type with forward curved blades with corrosion resistant finish Fan wheel shall be dynamically balanced 3 Outdoor fan shall be direct drive propeller type with a...

Страница 29: ... or automatic changeover and indoor fan control 7 Low Ambient Package Shall consist of a solid state control and outdoor coil tem perature sensor for controlling outdoor fan motor opera tion which shall allow unit to operate down to 0_F 17 7_C outdoor ambient temperature 8 Filter Rack Kit Shall provide filter mounting for downflow applications 9 Controls Upgrade Kit Shall provide high and low pres...

Страница 30: ...10 W Morris St S Indianapolis IN 46231 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 50SZ 4PD Replaces 50SZ 3PD Printed in U S A Edition Date 05 07 50SZ ...

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