Carrier 50JX Series Product Data
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Carrier 50JX Series Product Data

Carrier 50JX Series Product Data

Single-packaged heat pump units 2 to 5 nominal tons
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Copyright 2002 Carrier Corporation
Product
Data
UNIT 50JX
(STANDARD)
Single-Packaged
Heat Pump
Units
2 to 5 Nominal Tons
Single-Packaged Heat Pump for
Residential and Light Commercial
Applications
• Low Sound Levels
• 12 SEER
Features/Benefits
One-piece heat pump with optional
electric heater, low installation cost,
dependable performance and easy
maintenance.
Efficient operation
High-efficiency design with SEERs
(Seasonal Energy Efficiency Ratios)
of 12.0 and HSPFs (Heating Seasonal
Performance Factors) of up to 7.2
Easy Installation
Factory-assembled package is a
compact, fully self-contained, heat
pump unit that is pre-wired, pre-piped,
and pre-charged for minimum
installation expense. 50JX units are
available in a variety of standard
capacity ranges with voltage options to
meet residential and light commercial
requirements. Units install easily on a
rooftop or at ground-level.
Durable, dependable
components
Scroll Compressors are designed for
high efficiency. Each compressor is
hermetically sealed against
contamination to help promote longer
life and dependable operation.
Vibration isolation provides quiet
operation. Compressors have internal
high-pressure and overcurrent
protection.
Direct-drive multi-speed, PSC
(permanent split capacitor) blower
motor is standard on all 50JX models.
Direct-drive, PSC condenser-fan
motors are designed to help reduce
energy consumption and provide for
cooling operation down to 40°F outdoor
temperature. Motormaster® II low
Form 50JX-3PD
50JX

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Summary of Contents for Carrier 50JX Series

  • Page 1: Features/Benefits

    Compressors have internal high-pressure and overcurrent protection. Direct-drive multi-speed, PSC (permanent split capacitor) blower motor is standard on all 50JX models. Direct-drive, PSC condenser-fan motors are designed to help reduce energy consumption and provide for cooling operation down to 40°F outdoor temperature.

  • Page 2: Table Of Contents

    They are ideal for downshot. seacoast applications. Corporate thermostats work with Cabinets are constructed of heavy- Carrier’s small packaged products as a Low sound ratings ensure a quiet duty, phosphated, zinc-coated system to promote year round comfort. indoor and outdoor environment with prepainted steel capable of sound ratings as low as 72 dB.

  • Page 3: Model Number Nomenclature

    Model number nomenclature 50JX Options - - – Wire Grille Model No. AD – Louvered Grille 50JX – Single Packaged Options BT – Wire Grille and vinyl-coated Heat Pump (None) – Wire Grille outdoor coil fin AD – Louvered Grille XT –...

  • Page 4: Physical Data

    59.0 59.5 65.4 59.9 65.7 67.1 8000 52.9 52.1 57.4 54.1 58.5 60.6 Physical data UNIT SIZE 50JX NOMINAL CAPACITY (ton) 2-1/2 3-1/2 OPERATING WEIGHT (lb) Scroll COMPRESSORS Quantity (lb) REFRIGERANT (R-22) Quantity (lb) 10.8 10.1 12.3 Accurater REFRIGERANT METERING DEVICE 0.065...

  • Page 5: Options And Accessories

    CPHEATER063A00 20.0 LEGEND ODS — Order Distribution System NOTE: Electric heaters are rated at 240 v and 480 v. Refer to Multiplication Factors table for other voltages. Minimum Airflow for Reliable Electric Heater Operation UNIT-50JX AIRFLOW 1000* 1200 1400 1600 2000 *The 030 size models must be run on medium or high speed when used in conjunction with 15 Kw electric heat accessory.
  • Page 6 ECONOMIZER FILTER RACK MANUAL OUTSIDE AIR DAMPER REPLACEMENT PANEL MANUAL OUTSIDE AIR HOOD DAMPER BLADE...

  • Page 7: Base Unit Dimensions

    Base unit dimensions—50JX024-036 CENTER OF GRAVITY UNIT HEIGHT UNIT WEIGHT ELECTRICAL mm (in.) UNIT mm (in.) CHARACTERISTICS “A” 50JX024 208/230-1-60 135.6 1041.9 (41.02) 482.6 (19.0) 348.0 (13.7) 406.4 (16.0) 50JX030 208/230-1-60, 208/230-3-60 145.2 940.3 (37.02) 500.4 (19.7) 355.6 (14.0) 447.0 (17.6) 50JX036 208/230-1-60, 208/230-3-60, 460-3-60 148.8...

  • Page 8: Base Unit Dimensions

    Base unit dimensions—50JX042-060 CENTER OF GRAVITY UNIT HEIGHT UNIT WEIGHT ELECTRICAL mm (in.) UNIT mm (in.) CHARACTERISTICS “A” 50JX042 208/230-1-60, 208/230-3-60, 460-3-60 158.8 1040.9 (40.98) 505.5 (19.9) 398.8 (15.7) 421.6 (16.6) 50JX048 208/230-1-60, 208/230-3-60, 460-3-60 170.1 1040.9 (40.98) 505.5 (19.9) 398.8 (15.7) 457.2 (18.0) 50JX060 208/230-1-60, 208/230-3-60, 460-3-60 194.1...

  • Page 9: Accessory Dimensions

    Accessory dimensions HVAC unit HVAC unit base base Gasketing inner flange* Screw Screw Gasketing (NOTE A) (NOTE A) inner flange* *Gasketing *Gasketing outer flange outer flange Wood nailer* Wood nailer* Flashing field Flashing field supplied supplied Roofcurb* Roofcurb* Insulation (field Insulation (field supplied) supplied)

  • Page 10: Selection Procedure

    50JX Corner weights ( In Pounds) CORNER WEIGHTS (Small Cabinet) CORNER WEIGHTS (Large Cabinet) Unit — — Unit Total Weight (lbs.) — — Total Weight (lbs.) Corner Weight 1 — — Corner Weight 1 Corner Weight 2 — — Corner Weight 2 Corner Weight 3 —...

  • Page 11: Performance Data

    Performance data COOLING EXTENDED PERFORMANCE TABLE 50JX024 (2 TONS) Indoor Entering Air—CFM/BF Temp (F) 700/0.02 800/0.02 900/0.05 Air Ent Outdoor Coil Indoor Entering Air—Ewb (F) (Edb) 26.3 24.2 22.3 21.9 26.5 24.5 22.4 26.6 24.6 22.9 23.0 13.0 16.7 16.0 19.9 13.6 17.7...

  • Page 12: Performance Data

    Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50JX030 (2-1/2 TONS) Indoor Entering Air—CFM/BF Temp (F) 875/0.05 1000/0.06 1125/0.08 Air Ent Outdoor Coil Indoor Entering Air—Ewb (F) (Edb) 34.1 31.8 29.1 28.7 34.4 32.0 29.6 29.0 34.3 32.0 30.1 29.6 17.8 22.9 21.6 26.8...
  • Page 13 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50JX036 (3 TONS) Indoor Entering Air—CFM/BF Temp (F) 1050/0.11 1200/0.14 1350/0.18 Air Ent Outdoor Coil Indoor Entering Air—Ewb (F) (Edb) 37.4 35.2 33.4 32.3 37.8 35.8 34.2 33.7 38.5 36.2 34.6 34.2 19.1 25.1 25.0 30.3...
  • Page 14 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50 JX042 (3-1/2 TONS) Indoor Entering Air—CFM/BF Temp (F) 1225/0.06 1400/0.06 1575/0.07 Air Ent Outdoor Coil Indoor Entering Air—Ewb (F) (Edb) 46.7 42.8 40.2 39.4 47.1 43.2 40.2 40.1 47.2 43.3 40.2 40.8 24.3 30.7 31.3...
  • Page 15 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50 JX048 (4 TONS) Indoor Entering Air—CFM/BF Temp (F) 1400/0.07 1600/0.07 1800/0.08 Air Ent Outdoor Coil Indoor Entering Air—Ewb (F) (Edb) 52.8 48.7 45.2 44.5 53.0 48.9 45.5 45.5 52.9 49.0 45.6 46.4 25.2 32.5 31.3...
  • Page 16 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50 JX060 (5 TONS) Indoor Entering Air—CFM/BF Temp (F) 1750/0.07 2000/0.12 2250/0.15 Air Ent Outdoor Coil Indoor Entering Air—Ewb (F) (Edb) 67.9 61.8 56.5 55.5 68.9 63.3 57.9 57.2 69.6 64.4 59.1 59.0 35.1 44.4 42.2...
  • Page 17 Performance data (cont) ECONOMIZER 1-in. FILTER PRESSURE DROP (in. wg) UNIT50JX PRESSURE DROP 024-036 0.20 042-060 0.25 MULTIPLICATION FACTORS VOLTAGE HEATER kW MULTIPLICATION DISTRIBUTION RATING FACTOR V/3/60 1.00 1.00 Example: 20 kW (at 240v) heater on 230v NOTES: = 20.0 (.92 mult factor) 1.
  • Page 18 WET COIL AIR DELIVERY UNIT 50JX024-060* External Static Pressure (in.wg) Unit Motor Speed 50JX Watts — — — — — — — — — — — — — — Watts — — — — — — — — — —...

  • Page 19: Typical Piping And Wiring

    Typical piping and wiring INDOOR THERMOSTAT RETURN FROM TOP COVER POWER SOURCE DISCONNECT PER NEC...

  • Page 20: Application Data

    Application data Condensate trap — A 2-in. condensate trap must be field To convert a unit to downflow discharge — Units are supplied. equipped with factory-installed inserts in the downflow openings. Remove the inserts similar to removing an electrical knock-out. 1”...

  • Page 21: Electrical Data

    Electrical Data VOLTAGE COMPRESSOR UNIT RANGE ELECTRIC HEAT SINGLE POINT POWER SUPPLY SIZE V-PH-Hz Fuse or 50JX Nominal kW* Ckt Bkr MOCP —/— —/— 16.4/16.4 20/20 — 3.8/5.0 18.1/20.8 39.0/42.4 40/45 — 208/230-1-60 10.8 0.90 5.4/7.2 26.0/30.0 48.9/53.9 60/60 —...
  • Page 22 Electrical Data Legend EXAMPLE: Supply voltage is 460-3-60. AB = 452 v LEGEND BC = 464 v AC = 455 v — Full Load Amps — Locked Rotor Amps 452 + 464 + 455 ® Average Voltage = — Minimum Circuit Amps MOCP —...

  • Page 23: Typical Wiring Schematics

    Typical wiring schematic — 208/230-1-60 shown...
  • Page 24 Typical wiring schematic — 208/230-3-60 shown...

  • Page 25: Typical Wiring Schematics

    Typical wiring schematic — 460-3-60 shown...

  • Page 26: Controls

    Controls Sequence of operation Should room temperature continue to fall, circuit R-W is made through second-stage thermostat bulb. If optional When power is supplied to unit, the transformer (TRAN) is electric heat package is used, a relay is energized, bringing energized.

  • Page 27: Guide Specifications

    C. Fans: Size Range: 2 to 5 Tons, Nominal Cooling 1. The indoor fan shall be 3-speed, direct-drive, as Carrier Model Number: 50JX shown on equipment drawings. Part 1—General 2. Fan wheel shall be made from steel and shall be...
  • Page 28 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 New Book 1 Page 28 Catalog No. 525-00037 Printed in U.S.A. PC 101 Form 50JX-3PD Replaces: 50JX-2PD Tab 5a 5a OP3a...

This manual is also suitable for:

50jx02450jx03050jx03650jx04250jx04850jx060

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