Carrier 50JZ Product Data
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Carrier 50JZ Product Data

Carrier 50JZ Product Data

Single-package heat pump units with puron (r-410a) refrigerant 2 to 5 nominal tons
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Copyright 2000 Carrier Corporation
Product
Data
UNIT 50JZ
Single-Package
with Puron® (R-410A) Refrigerant
Single-Package Products with
Energy-Saving Features and Puron®
refrigerant.
• 12 SEER
• HSPF up to 7.2
• Low Sound Levels
Features/Benefits
One-piece Heat Pump unit with
optional electric heater, low
installation cost, dependable
performance and easy maintenance.
Efficient operation
High-efficiency design with SEERs
(Seasonal Energy Efficiency Ratio)
of 12.0.
Puron® Environmentally Sound
Refrigerant is Carrier's unique
refrigerant designed to help protect the
environment. Puron is an HFC
refrigerant which does not contain
chlorine that can harm the ozone layer.
The most important advantage of
Puron refrigerant is that it has not been
banned in future air conditioning
systems as the traditional refrigerant
R-22 has been. Puron refrigerant is in
service in over 100,000 systems
proving highly reliable,
environmentally sound performance.
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. 50JZ 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
Compressors are designed for high
efficiency. Each compressor is
hermetically sealed against
contamination to help promote longer
life and dependable operation.
50JZ
Heat Pump
Units
2 to 5 Nominal Tons
Form 50JZ-1PD

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Summary of Contents for Carrier 50JZ

  • Page 1: Features/Benefits

    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. 50JZ units are available in a variety of standard capacity ranges with voltage options to meet residential and light commercial requirements.

  • Page 2: Table Of Contents

    (permanent split capacitor) blower withstanding 500 hrs of salt spray. They are ideal for seacoast applications. motor is standard on all 50JZ models. Interior surfaces of the evaporator and electric heater compartments are Direct-drive, PSC condenser-fan...

  • Page 3: Model Number Nomenclature

    Model number nomenclature 50JZ Options - - – Louvered Grille Model No. BT – Louvered Grille, AL indoor 50JZ – Single Package Options and vinyl-coated outdoor coil fin ..Heat Pump (None) – Wire Grille CC – Louvered Grille, AL indoor and AD –...

  • Page 4: Physical Data

    Physical data UNIT SIZE 50JZ NOMINAL CAPACITY (ton) 2-1/2 3-1/2 OPERATING WEIGHT (lb) COMPRESSOR Scroll REFRIGERANT (R-410A) Quantity (lb) 10.6 12.4 AccuRater® Piston REFRIGERANT METERING DEVICE 0.061 0.061 0.067 0.073 0.076 0.088 Orifice ID (in.) Orifice OD (in.) 2@0.032 2@0.040 2@0.040...

  • Page 5: Options And Accessories

    15.0 CPHEATER063A00 20.0 LEGEND ODS — Order Distribution System NOTE: Electric heaters are rated at 240v and 480v. Refer to Multiplication Factors table for other voltages. MINIMUM AIRFLOW FOR RELIABLE ELECTRIC HEATER OPERATION UNIT-50JZ AIRFLOW 1000 1200 1400 1600 2000...
  • Page 6 ECONOMIZER FILTER RACK MANUAL OUTSIDE AIR DAMPER REPLACEMENT PANEL MANUAL OUTSIDE AIR HOOD DAMPER BLADE...

  • Page 7: Base Unit Dimensions

    “A” 50JZ024 208/230-1-60 135.6 35.02 [889.5] 19.0 [482.6] 18.3 [463.6] 16.0 [406.4] 50JZ030 208/230-1-60, 208/230-3-60 145.2 37.02 [940.3] 20.0 [508.0] 19.3 [489.0] 17.6 [447.0] 50JZ036 208/230-1-60, 208/230-3-60, 460-3-60 148.8 37.02 [940.3] 20.0 [508] 19.0 [482.6] 16.5 [419.1] 50JZ 024-036 Dimensions...

  • Page 8: Base Unit Dimensions

    208/230-1-60, 208/230-3-60, 460-3-60 158.8 40.98 [1040.9] 21.0 [533.4] 20.5 [520.7] 16.6 [421.6] 50JZ048 208-230-1-60, 208/230-3/60, 460-3-60 161.0 40.98 [1040.9] 20.0 [508.0] 21.3 [539.8] 18.0 [457.2] 50JZ060 208/230-1-60, 208/230-3-60, 460-3-60 194.1 42.98 [1091.7] 21.0 [533.4] 20.0 [508.0] 17.6 [447.0] 50JZ 042-060 Dimensions...

  • Page 9: Accessory Dimensions

    Accessory dimensions ODS CATALOG UNIT SIZE ORDERING NO. in. [mm] in. [mm] in. [mm] in. [mm] CPRFCURB006A00 8 [203] 11-27/32 [301] 30-5/8 [778] 28-3/4 [730] 50JZ024-036 CPRFCURB007A00 14 [356] 11-27/32 [301] 30-5/8 [778] 28-3/4 [730] FLAT CURB CPRFCURB008A00 8 [203] 15-27/32 [402] 42-1/8 [1070] 40-1/4 [1022] 50JZ042-060 CPRFCURB009A00...

  • Page 10: Selection Procedure

    Selection Procedure I Determine cooling and heating requirements at design Enter the Electric Heater table on page 5 for 208/230 v, conditions: single-phase, unit. The 5-kw heater at 240v most closely Given: satisfies the heating required. To calculate kw at 230v, Required Cooling Capacity (TC) .

  • Page 11: Performance Data

    Performance data COOLING EXTENDED PERFORMANCE TABLE 50JZ024 COOLING PERFORMANCE TABLE Evaporator Air—CFM/BF Temp (F) 700/0.10 800/0.14 900/0.18 Outdoor Air Entering Evaporator Air — Ewb (F) Condenser 24.1 42.7 26.6 28.6 25.1 25.7 27.4 29.1 25.6 26.1 27.8 29.5 21.3 17.6 18.2 14.6 23.2...

  • Page 12: Performance Data

    Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50JZ030 COOLING PERFORMANCE TABLE Evaporator Air—CFM/BF Temp (F) 875/0.08 1000/0.09 1125/0.10 Outdoor Air Entering Evaporator Air — Ewb (F) Condenser 28.1 28.5 30.8 33.2 29.1 29.5 31.8 33.7 30.5 30.5 32.8 34.5 26.0 21.2 21.8 17.4...
  • Page 13 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50JZ036 COOLING PERFORMANCE TABLE Evaporator Air—CFM/BF Temp (F) 1050/0.07 1200/0.08 1350/0.10 Outdoor Air Entering Evaporator Air — Ewb (F) Condenser 35.9 36.2 39.8 42.4 37.0 37.1 40.5 42.8 37.6 37.2 40.5 42.8 32.7 26.5 27.7 22.2...
  • Page 14 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50JZ042 COOLING PERFORMANCE TABLE Evaporator Air—CFM/BF Temp (F) 1225/0.11 1400/0.12 1575/0.14 Outdoor Air Entering Evaporator Air — Ewb (F) Condenser 41.2 44.8 47.0 42.5 45.7 47.6 43.3 46.1 48.0 37.4 31.4 24.8 40.2 33.3 25.8 42.2...
  • Page 15 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50JZ048 COOLING PERFORMANCE TABLE Evaporator Air—CFM/BF Temp (F) 1400/0.07 1600/0.08 1800/0.09 Outdoor Air Entering Evaporator Air — Ewb (F) Condenser 48.0 48.3 52.1 55.9 49.0 49.1 53.0 56.3 49.8 49.1 53.0 56.1 44.5 35.8 37.5 29.3...
  • Page 16 Performance data (cont) COOLING EXTENDED PERFORMANCE TABLE 50JZ060 COOLING PERFORMANCE TABLE Evaporator Air—CFM/BF Temp (F) 1750/0.07 2000/0.08 2250/0.09 Outdoor Air Entering Evaporator Air — Ewb (F) Condenser 59.2 59.6 64.7 68.6 60.7 60.5 65.1 68.9 61.8 60.5 68.6 68.8 54.7 43.8 46.1 36.2...
  • Page 17 Performance data (cont) ECONOMIZER 1-in. FILTER PRESSURE DROP (in. wg) UNIT50JZ PRESSURE DROP 024-036 0.20 042-060 0.25 MULTIPLICATION FACTORS HEATER kw VOLTAGE MULTIPLICATION RATING DISTRIBUTION V/3/60 FACTOR 1.00 1.00 Example: 15.0 kw (at 240v) heater on 208v = 15.0 (.75 mult factor) = 11.25 capacity at 208v LEGEND Ewb –...
  • Page 18 WET COIL DELIVERY—HORIZONTAL AND DOWNFLOW DISCHARGE UNIT 50JZ 024-060 230 AND 460 VOLT External Static Pressure (in.wg) Unit Motor Speed 50JZ Watts — — — — — — — — — — — — — — Watts — — —...

  • Page 19: Typical Piping And Wiring

    Typical piping and wiring ROOF-MOUNTING CURB ROOF RETURN-AIR FLEXIBLE DUCT SUPPLY-AIR FLEXIBLE DUCT CEILING CONCENTRIC DIFFUSER BOX (FIELD-SUPPLIED) C00023 INDOOR THERMOSTAT RETURN FROM TOP COVER POWER SOURCE DISCONNECT PER NEC* *NEC - NATIONAL ELECTRICAL CODE C00063...

  • Page 20: Application Data

    Application data Condensate trap — A 2-in. condensate trap must be field openings. Remove the inserts similar to removing an supplied. electrical knock-out. Leave on duct covers to seal the horizontal discharge openings in the unit. Units installed in horizontal discharge orientation do not require duct covers. 1”...

  • Page 21: Electrical Data

    Electrical data VOLTAGE OUTDOOR INDOOR COMPRESSOR UNIT RANGE FAN MOTOR FAN MOTOR ELECTRIC HEAT POWER SUPPLY† SIZE V-PH-Hz MAX FUSE 50JZ Nominal kw UNIT MCA or CKT. BKR. MOCP —/— —/— 19.8/19.8 25/25 — 208/230-1-60 13.5 61.0 3.8/5.0 18.1/20.8 25.1/28.5 25/30 —...
  • Page 22 LEGEND 452 + 464 + 455 Average Voltage = — Full Load Amps HACR — Heating, Air Conditioning and Refrigeration 1371 — Indoor-Fan Motor — Locked Rotor Amps = 457 — Minimum Circuit Amps Determine maximum deviation from average voltage. 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 also is completed, energizing IFR and starting IFM after a 1- sec delay. When power is supplied to unit, the transformer (TRAN) is Should room temperature continue to fall, circuit R-W is energized. made through second-stage thermostat bulb. If optional On units with crankcase heater, heater is also 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: 50JZ shown on equipment drawings. Part 1—General 2. Fan wheel shall be made from steel, and shall be...
  • Page 28 Indianapolis, IN 46231 7/00 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 Page 28 Catalog No. 525-087 Printed in U.S.A. PC 102 Form 50JZ-1PD Replaces: NEW 5b 5a...

This manual is also suitable for:

50jz02450jz03050jz03650jz04250jz04850jz060

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