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 2001 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
• Variable Speed Blower Option
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.
ComfortHeat™ Technology
featuring Variable Speed Blower
motors provides better comfort and
energy efficiency. You can expect up to
30 times better dehumidification; a
SEER boost of up to 12.7; economical
constant fan for less than $30 a year,
which provides improved indoor air
quality and more even temperatures
from room to room; and reduced
indoor noise due to lower air velocity.
In addition, you'll realize improved
installation flexibility with 3 different
airflow choices for best overall
comfort.
Easy Installation
Factory-assembled package is a
50JZ
Heat Pump
Units
2 to 5 Nominal Tons
Form 50JZ-3PD

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Summary of Contents for Carrier 50JZ

  • Page 1 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.
  • Page 2: Table Of Contents

    (permanent split capacitor) blower sound ratings as low as 72 dB. motor is standard on all 50JZ models. (See page 3.) Standard metal duct covers with insulation come with the unit and cover...
  • Page 3: Model Number Nomenclature

    @ 47°F (BTUH) @ 17°F @ 17°F 23,800 13,000 28,200 15,600 34,400 18,000 40,000 22,000 44,000 23,600 55,000 31,000 50JZ ICM FIOP RATINGS COOLING HEATING UNIT “A”** “A”** HIGH CAP LOW CAP HIGH COP LOW COP SEER HSPF 50JZ CAPACITY BTUH@47°F BTUH@17°F...
  • 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@0.043...
  • Page 5: Options And Accessories

    Flat Roof Curbs (8-in. and 14-in.) assist in lifting this product onto a roof application. Square-to-Round Duct Transition Kit Crankcase heater provides anti-floodback protection Thermostats for low-load cooling applications (Standard on 50JZ Crankcase Heater 042-060). Low Ambient Kit (Motormaster® II Control) Lifting Kit...
  • 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 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

    50JZ Corner weights (in Pounds) C00071 CORNER WEIGHTS (SMALL CABINET) CORNER WEIGHTS (LARGE CABINET) Unit Unit Total Weight Total Weight Corner Weight 1 Corner Weight 1 Corner Weight 2 Corner Weight 2 Corner Weight 3 Corner Weight 3 Corner Weight 4...
  • Page 11: Performance Data

    Performance data- Standard PSC indoor motor 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 25.1 26.6 28.6 25.1 25.7 27.4 29.1 25.6 26.1 27.8 29.5 21.3...
  • Page 12: Performance Data

    Performance data (cont)- Standard PSC indoor motor 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...
  • Page 13 Performance data (cont)- Standard PSC indoor motor 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...
  • Page 14 Performance data (cont)- Standard PSC indoor motor 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 41.9 44.8 47.0 42.5 43.0 45.7 47.6 43.3 43.7 46.1 48.0...
  • Page 15 Performance data (cont)- Standard PSC indoor motor 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...
  • Page 16 Performance data (cont)- Standard PSC indoor motor 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...
  • 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 50JZ ICM FIOP DRY COIL AIRFLOW-SMALL CABINET CFM ADJUST LO PIN NOM PIN HI PIN PIN SELECT UNIT SIZE EXTERNAL STATIC 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 PRESSURE RANGE COOLING† — COOLING — DEHUMIDIFY HEAT PUMP —...
  • Page 19 STANDARD 50JZ UNIT 024-060—WET COIL AIRFLOW DELIVERY 230 AND 460 VOLT External Static Pressure (in.wg) Unit Motor Speed 50JZ Watts — — — — — — — — — — — — — — Watts — — — — —...
  • Page 20: 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 21: Application Data

    Application data Condensate trap — A 2-in. condensate trap must be field electrical knock-out. Leave on duct covers to seal the supplied. horizontal discharge openings in the unit. Units installed in horizontal discharge orientation do not require duct covers. 1” MIN. Maximum cooling airflow —...
  • Page 22: Electrical Data

    Electrical data SINGLE POINT 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 30/30 3.8/5.0 18.1/20.8 42.3/45.8 50/50 — 208/230-1-60 13.5...
  • Page 23 50JZ WITH ICM FIOP ELECTRICAL DATA SINGLE POINT 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 —/— —/— 22.1/22.1 30/30 —...
  • Page 24 Typical wiring schematic — 208/230-1-60 shown...
  • Page 25: Typical Wiring Schematics

    Typical wiring schematic — 208/230-3-60 shown...
  • Page 26: Typical Wiring Schematics

    Typical wiring schematic — 460-3-60 shown...
  • Page 27 ICM FIOP wiring schematic — 208-230-1-60 shown...
  • Page 28: Controls

    Controls Sequence of operation motors and heaters deenergize. The IFM is controlled by a time-delay relay that keeps the fan on for 60 sec†. When power is supplied to unit, the transformer (TRAN) is Defrost — Defrost board (DB) is a time and temperature energized.
  • Page 29: Guide Specifications

    Size Range: 2 to 5 Tons, Nominal Cooling control, as shown on equipment drawings. Carrier Model Number: 50JZ 2. Fan wheel shall be made from steel, and shall be Part 1—General double-inlet type with forward curved blades with SYSTEM DESCRIPTION corrosion resistant finish.
  • Page 30 Guide specifications (cont) K. Motors: 6. Thermostat: 1. Compressor motors shall be of the refrigerant- To provide for two-stage heating and one stage cooled type with line-break thermal and current cooling in addition manual or automatic changeover overload protection. and indoor fan control. 2.
  • Page 32 5-01 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 Page 32 Catalog No. 525-00014 Printed in U.S.A. PC 101 Form 50JZ-3PD Replaces: 50JZ-2PD Tab 5b 5a...

This manual is also suitable for:

50jz02450jz03050jz03650jz04250jz04850jz060

Table of Contents