Carrier Performance 50VT Product Data

Carrier Performance 50VT Product Data

Single-packaged heat pump units with puron (r-410a) refrigerant single-and three-phase 2 to 5 nominal tons (sizes 024-060)

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50VT
Performancet Single ---Packaged Heat Pump Units with PuronR
(R ---410A) Refrigerant
Single --- And Three ---Phase
2 to 5 Nominal Tons (Sizes 024---060)
Fig. 1 - - Unit 50VT
Single- -Packaged Products with Energy- -Saving Features and
PuronR refrigerant.
S Up to 14.5 SEER
S 8.0 HSPF
S 12 EER at 95_F (35_C) OD
S Factory- -Installed TXV
S Multi- -Speed Blower- -Standard
FEATURES/BENEFITS
One- -piece Heat Pump unit with optional electric heater, low
installation cost, dependable performance and easy maintenance.
Efficient operation
High- -efficiency design
(Seasonal Energy Efficiency Ratio) of up to 14.5.
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. Puron refrigerant is in service in millions of systems,
proving highly reliable, environmentally sound performance.
Easy Installation
Factory- -assembled package is a compact, fully self- -contained,
heat pump unit that is prewired, pre- -piped, and pre- -charged for
minimum installation expense. These units are available in a
variety of standard capacity ranges with voltage options to meet
residential and light commercial requirements. Units are
lightweight and install easily on a rooftop or at ground level. The
high tech composite base eliminates rust problems associated with
ground level applications.

Product Data

A99001
with SEERs
Durable, dependable components Compressors are designed
for high efficiency. Each compressor is hermetically sealed against
contamination to help promote longer life and dependable
operation. Each compressor also has vibration isolation to provide
quieter operation. All compressors have internal high pressure and
overcurrent protection.
Direct- -drive multi- -speed brushless DC blower motor
standard on all 50VT models. Direct- -drive, PSC condenser- -fan
motors are designed to help reduce energy consumption and
provide for cooling operation down to 40_F (4.4_C) outdoor
temperature. MotormasterR II low ambient kit is available as a
field installed accessory.
Thermostat Controls designed to work as a system with Carrier's
small packaged product.
Thermostatic Expansion Valve - - A hard shutoff, balance port
TXV maintains a constant superheat at the evaporator exit (cooling
cycle) resulting in higher overall system efficiency.
Refrigerant system is designed to provide dependability. Liquid
filter driers are used to promote clean, unrestricted operation. Each
unit leaves the factory with a full refrigerant charge. Refrigerant
service connections make checking operating pressures easier.
High and Low Pressure Switches provide added reliability for the
compressor.
Indoor and Outdoor coils are computer- -designed for optimum
heat transfer and efficiency. The indoor coil is fabricated from
copper tube and aluminum fins and is located inside the unit for
protection against damage. The outdoor coil is internally mounted
on the top tier of the unit. Copper fin coils and pre- -coated fin coils
are available from the factory by special order. These coils are
recommended in applications where aluminum fins are likely to be
damaged due to corrosion. They are ideal for seacoast applications.
Low sound ratings ensure a quiet indoor and outdoor
environment with sound ratings as low as 72dBA.
Easy to service cabinets provide easy single- -panel accessibility to
serviceable components during maintenance and installation. The
base with integrated drain pan provides easy ground level
installation with or without a mounting pad. Convenient
hand- -holds are provided to manipulate the unit on the jobsite. A
nesting feature ensures a positive basepan to roof curb seal when
the unit is roof mounted. A convenient 3/4- -in. wide perimeter
flange makes frame mounting on a rooftop easy.
Convertible duct configuration
Unit is designed for easy use in either downflow or horizontal
applications. Each unit is easily converted from horizontal to
downflow with the two duct covers, standard on 3 phase units and
available as an accessory for single phase units. Downflow
operation is easily provided in the field to allow vertical ductwork
connections. The basepan utilizes knockout style seals on the
bottom openings to ensure a positive seal in the horizontal airflow
mode.
Cabinets are constructed of heavyduty, phosphated, zinc- -coated
prepainted steel capable of withstanding 500 hours in salt spray.
Interior surfaces of the evaporator and electric heater compartments
are insulated with cleanable semi- -rigid insulation board, which
1
is

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Summary of Contents for Carrier Performance 50VT

  • Page 1: Product Data

    40_F (4.4_C) outdoor temperature. MotormasterR II low ambient kit is available as a field installed accessory. Thermostat Controls designed to work as a system with Carrier’s small packaged product. Thermostatic Expansion Valve - - A hard shutoff, balance port TXV maintains a constant superheat at the evaporator exit (cooling cycle) resulting in higher overall system efficiency.
  • Page 2: Table Of Contents

    5 --- 208/230--- 3--- 60 6 --- 460--- 3--- 60 LEGEND AL --- Aluminum CU --- Copper N/A --- Not applicable ISO 9001:2000 REGISTERED As an Energy Star® Partner, Carrier Corporation has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.
  • Page 3: 50Vt

    ARI* CAPACITIES COOLING CAPACITIES AND EFFICIENCIES STANDARD COOLING 50VT NOMINAL TONS SEER CAPACITY 024 --- --- ---301 23000 12.0 14.5 030 --- --- ---301/501 1000 29000 12.0 14.5 036 --- --- ---301/501/601 1200 36000 12.0 14.5 042 --- --- ---301/501/601 1400 41000 12.0...
  • Page 4: Physical Data

    PHYSICAL DATA - - UNIT 50VT UNIT SIZE 50VT024 50VT030 50VT036 50VT042 50VT048 50VT060 NOMINAL CAPACITY (ton) OPERATING WEIGHT} (lb) (kg) COMPRESSOR QUANTITY TYPE SCROLL COMPRESSOR REFRIGERANT R---410A Refrigerant (R --- 410A) Quantity (lb) 10.5 14.0 17.0 16.0 Quantity (kg) METERING DEVICE ID 0.038 (Left OD Coil) ORIFICE OD in.
  • Page 5: Options And Accessories

    OPTIONS AND ACCESSORIES Electric heaters provide additional heat in the unit when required. Each package has a heater module that slides into the controls Factory- -installed options compartment. Heater sizes range from 5.0 to 20.0 kW. The electric Louver grille provides hail and vandalism protection. A wire grille heater design allows the use of a single- -point power supply for the is standard on all models.
  • Page 6: Electric Heaters

    ELECTRIC HEATERS NOMINAL USED WITH SIZES CAPACITY (kW ORDERING NO. @ 240 or 480 VOLTS) 208/230 --- SINGLE PHASE --- 60 HZ CPHEATER052A00 CPHEATER064A00 CPHEATER070A00 CPHEATER050A00 10.0 CPHEATER066A00 15.0 CPHEATER054A00 20.0 208/230 --- THREE PHASE --- 60 HZ CPHEATER055A00 CPHEATER056A00 10.0 CPHEATER068A00 10.0...
  • Page 7 ECONOMIZER COIL FILTER ACCESS DOOR (HORIZONTAL APPLICATION ONLY.) FILTER DO NOT REMOVE FROM DOWNFLOW DISCHARGE. REPLACEMENT ECONOMIZER PANEL HOLE FOR ECONOMIZER WIRING HARDNESS 17 13/32 11 13/32” RAINHOOD DOOR CAULK BOTTOM CORNER LATCH ANGLE OF ECONOMIZER 16 1/4” SIDE VIEW ON EACH SIDE HINGED FILTER ACCESS DOOR...
  • Page 8 UNIT DIMENSIONS - - 50VT024- - 030 A08074...
  • Page 9 UNIT DIMENSIONS - - 50VT036- - 060 A08253...
  • Page 10: Accessory Dimensions

    ACCESSORY DIMENSIONS HVAC unit HVAC unit base base Gask eting inner flange* Scre w Scre w Gask eting (NO TE A) (NO TE A) inner flange* *Gask eting *Gask eting outer flange outer flange Wood nailer* Wood nailer* Flashing field Flashing field supplied supplied...
  • Page 11: Selection Procedure

    (914 mm) DETAIL A A08005 A07216 RIGGING WEIGHTS (SMALL CABINET) RIGGING WEIGHTS (LARGE CABINET) 036* 042* 048* 060* Unit Unit Shipping Shipping Weight Weight Rigging Rigging Weight Weight *For 460 volt units add 14 lb (6.4 kg) to the weight. NOTE: See dimensional drawing for corner weight distribution.
  • Page 19: Performance Data

    PERFORMANCE DATA (CONT) Wet Coil Air Delivery 50VT036- -060 - - Downflow Discharge - - High Speed External Static Pressure (IN. W.C.) Unit 50VT036 1630 1593 1556 1526 1487 1442 1405 1365 1322 1288 50VT042 1630 1593 1556 1526 1487 1442 1405 1365...
  • Page 20: Typical Piping And Wiring

    Filter Pressure Drop Table (IN. W.C.) FILTER SIZE in. (mm) 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 20X20X1 0.05 0.07 0.08 0.12 0.13 0.14 0.15 — — — — — — — — —...
  • Page 21: Application Data

    APPLICATION DATA Maximum cooling airflow — To minimize the possibility of condensate blow- -off from the evaporator, airflow through the units Condensate trap — A 2- -in. (51 mm) condensate trap must be should not exceed 450 cfm per ton. field supplied.
  • Page 22 BALANCE POINT WORKSHEET BALANCE POINT WORKSHEET 20.5 060----0- 17.6 048----0- 042----0- 14.6 036----0- 11.7 030----0- 024----0- BASED ON INDOOR ENT. AIR AT 70 ºF AND AT RATED CFM OUTDOOR TEMPERATURE, ºF A08226...
  • Page 23: Electrical Data

    ELECTRICAL DATA 50VT Electrical Data ELECTRIC HEAT POWER SUPPLY VOLTAGE COMPRESSOR RANGE FUSE NOMINAL UNIT NOMINAL V- -PH- -HZ MOCP --/-- --/-- 21.8/21.8 30/30 3.8/5 18.1/20.8 44.4/47.9 45/50 50VT--024------301 208/230--1--60 13.5 58.3 7.5/10 36.1/41.7 67.0/73.9 70/80 5.4/7.2 25.9/30 54.3/59.3 60/60 --/-- --/-- 22.9/22.9...
  • Page 24 EXAMPLE: Supply voltage is 230-3-60. AB = 228 v LEGEND BC = 231 v AC = 227 v Full Load Amps Locked Rotor Amps 228 + 231 + 227 Average Voltage = -- Minimum Circuit Amps MOCP -- Maximum Overcurrent Protection Rated Load Amps = 229 NO TES:...
  • Page 25: Typical Wiring Schematics

    TYPICAL WIRING SCHEMATIC - - 208/230- - 1- - 60 A08024...
  • Page 26 TYPICAL WIRING SCHEMATIC - - 208/230- - 3- - 60 A08025...
  • Page 27 TYPICAL WIRING SCHEMATIC - - 460- -3- -60 A08026...
  • Page 28: Controls

    CONTROLS Defrost — Defrost board (DB) is a time and temperature control, which includes a field- -selectable time period (dip switch 1 and 2 Operating sequence on the board) between checks for defrost (30, 60, 90, or 120 When power is supplied to unit, the transformer (TRAN) is minutes).
  • Page 29: Guide Specifications

    Size Range: 2 to 5 Tons, Nominal Cooling 3. Outdoor fan shall be direct- -drive, propeller- -type with Carrier Model Number: 50VT aluminum blades riveted to corrosion resistant steel spiders, be dynamically balanced, and discharge air vertically. Part 1⎯General D.
  • Page 30: Options

    0_F (- -17.7_C) outdoor ambient temperature. Catalog No:50VT ---01PD Copyright 2008 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 05/08 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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