Carrier Comprehensive Guide for the 50PCH Heat Pump
Page 15

a50-8440

Deluxe D

15

 

 

 

LEGEND

AL

— Alarm Relay Contacts

P1

— Field Wiring Terminal Block

BM

— Blower Motor

RVS

— Reversing Valve Solenoid

BMC

— Blower Motor Capacitor

TRANS

— Transformer

BR

— Blower Relay

TXV

— Thermostatic Expansion Valve

CB

— Circuit Breaker

 

 

 

 

 

 

 

 

 

 

 

Field Line Voltage Wiring

CC

— Compressor Contactor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Field Low Voltage Wiring

CO

— Sensor, Condensate Overflow

 

 

 

 

 

 

 

 

 

 

 

FP1

— Sensor, Low Temperature Protection, Water Coil

 

 

 

 

 

 

 

 

 

 

 

Printed Circuit Trace

FP2

— Sensor, Low Temperature Protection, Air Coil

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Optional Wiring

HP

— High-Pressure Switch

 

 

 

 

 

 

 

 

 

 

 

HPWS — High-Pressure Water Switch

 

 

 

 

 

 

 

 

 

 

 

Relay/Contactor Coil

JW1

— Clippable Field Selection Jumper

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOC

— Loss of Charge Pressure Switch

 

 

 

 

 

 

 

 

 

 

 

 

LON

— Local Operating Network

 

 

 

 

 

 

 

 

 

 

 

Condensate Pan

MV

— Motorized Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MVES

— Motorized Valve End Switch

 

 

 

 

 

 

 

 

 

 

 

Solenoid Coil

NEC

— National Electrical Code

 

 

 

 

 

 

 

 

 

 

 

 

*Optional Wiring.

 

 

 

 

 

 

 

 

 

 

 

Temperature Switch

 

 

 

 

 

 

 

 

 

 

 

Thermistor

Ground

Wire Nut

Relay Contacts - N.C.

Relay Contacts - N.O.

Low Pressure Switch

High Pressure Switch

Splice Cap

Circuit Breaker

NOTES:

1.Compressor and blower motor thermally protected internally.

2.All wiring to the unit must comply with NEC and local codes.

3.Transformer is wired to 460-v BLK/RED lead for 460-3-60 units. Trans- former is energy limiting or may have circuit breaker.

4.FP1 thermistor provides low temperature protection for water. When using antifreeze solutions, cut JW3 jumper.

5.Refer to microprocessor control, LON, thermostat installation instruc- tions for wiring to the unit. Wire “N01” from LON to “Y1” Deluxe D when motorized valve is not used. Thermostat wiring must be Class 1 and voltage rating equal to or greater than unit supply voltage.

6.Factory cut JW4 jumper. Dry contact will be available between AL1 and AL2.

7.Transformer secondary ground via green wire with yellow stripe from “C” terminal to control box.

8.Blower motor is factory wired for medium and high speeds. For any other combination of speeds, attach black wire to the higher of the two desired speed taps at the motor, and attach the blue wire to the lower of the two desired speed taps.

9.Blower motor is factory wired for high and low speeds. No other combi- nation is available.

10.Optional LON wires. Only connect if LON connection is desired at the wall sensor.

11.The 460-v units using an internal secondary pump will require a neutral wire from the supply side in order to feed the accessory with 265-v.

Fig. 17 — 50PCH,PCV units with Deluxe D and LON Controller (460 V)

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Contents Safety Considerations ContentsGeneral InstallationPhysical Data 50PCH,PCV Units A50-8695 SizeIPT Electric Heat A50-7842efA50-8696 Back Discharge Side DischargeA50-6260ef Install Condensate DrainMount the Unit A50-8489Copper FPT/PVC A50-6261tfA50-6262ef Metal Hose Minimum Bend RadiiFitting Wire Field Power SupplyA50-8490 Reversing Valve Solenoid Sensor, Low Temperature Protection Air CoilA50-8491 RVSHpws A50-8492LON A50-8493A50-8440 National Electrical Code Optional Wiring Temperature Switch8697 A50Units with Deluxe D and Wshp Open Multiple Protocol Controls 8698Wshp Open Control A50-8162 50PCH,PCV Unit Electrical DataWire Field Controls A50-8441A50-8442 SPT Sensors Rnet Wiring SpecificationsRnet Wiring Field-Supplied Sensors for Wshp Open ControllerPRE-START-UP PCV Speed Airflow CFM 50PCH,PCV Blower Performance Standard Unit50PCH,PCV Blower Performance High-Static Unit FAN Rated MINComplete C Control Jumper Settings Refer to Deluxe D Control Jumper Settings Refer to , 15,Field Selectable Inputs Operating Limits DIP Switch Block S2 Accessory 1 Relay OptionsDIP Switch Block S2 Accessory 2 Relay Options START-UPCooling Heating Water Flow Rate GPM Unit Start-Up Cooling ModeWater Temperature Change Through Heat Exchanger Operating Limits 50PCH,PCV UnitsEntering Cooling Heating Water 50PC006 Typical Unit Operating Pressures and Temperatures50PC009 Typical Unit Operating Pressures and Temperatures 50PC012 Typical Unit Operating Pressures and TemperaturesTemp GPM/ton Pressure Heat 50PC015 Typical Unit Operating Pressures and Temperatures50PC018 Typical Unit Operating Pressures and Temperatures 50PC024 Typical Unit Operating Pressures and TemperaturesWater Air Temp 50PC030 Typical Unit Operating Pressures and Temperatures50PC036 Typical Unit Operating Pressures and Temperatures 50PC042 Typical Unit Operating Pressures and TemperaturesUnit Start-Up with Wshp Open Controls Unit Start-Up Heating Mode50PC048 Typical Unit Operating Pressures and Temperatures 50PC060 Typical Unit Operating Pressures and TemperaturesBACview6 Display Interface A50-8444Coaxial Water Pressure Drop Pressure DROP, psi kPaGpm 30 F 50 F 70 F 90 F 10 C 21 C 32 C 006 009 Units with Wshp Open Multiple Protocol OperationUnits with Aquazone Complete C Control Units with Aquazone Deluxe D ControlPage Auxiliary Modulating Hot Water/Steam Heating Reheat Complete C and Deluxe D Board System Test Aquazone Deluxe D Control LED Indica Complete C Control LED Code Fault DescriptionsLED Status Description of Operation Alarm Relay LED Fault Description CodeService Description Status LED Test LEDESD Refrigerant Charging A50-6286ef’ to 4’ Troubleshooting Air Coil Fan Motor RemovalA50-8163 Reduced or no airflow in heat TroubleshootingAir temperature out of range Cooling mode FP1125 F orReduced airflow in cooling Reduced or no water flowSensor Appendix a Wshp Open Screen ConfigurationAlarm Status StatusConfiguration Appendix a Wshp Open Screen ConfigurationMaintenance System SettingsSchedule Appendix a Wshp Screen Open Configuration ServiceTest Configuration Service Point Name Password Editable Range Default LevelScreen Name Alarm Page Copyright 2011 Carrier Corporation II. START-UP 50PCH,PCV START-UP ChecklistA50-8446 Heating Cycle AnalysisCooling Cycle Analysis A50-8445

50PCH specifications

The Carrier 50PCH is a cutting-edge series of air-cooled chillers designed to deliver exceptional cooling performance in a wide range of commercial applications. Engineered with efficiency and reliability in mind, the 50PCH stands out for its innovative technologies and robust construction, making it a preferred choice for facility managers and HVAC professionals.

One of the main features of the Carrier 50PCH is its advanced scroll compressor technology. This system consists of high-efficiency scroll compressors that optimize energy consumption while maintaining consistent cooling output. The incorporation of variable speed technology enables the chillers to adapt to fluctuating load demands, resulting in significant energy savings and reduced operational costs.

The 50PCH chillers also boast a high energy efficiency ratio (EER) and coefficient of performance (COP), ensuring compliance with stringent energy regulations and standards. They are designed with eco-friendly refrigerants, which contribute to lower greenhouse gas emissions, making them an environmentally responsible choice for modern buildings.

In addition to its energy-efficient operation, the 50PCH series is equipped with advanced controls that allow for seamless integration into building management systems. The intuitive interface facilitates monitoring and adjustment of set points, ensuring optimal comfort conditions. Furthermore, the chillers come with extensive diagnostic capabilities, enabling proactive maintenance and reducing the risk of unexpected downtime.

The robust construction of the 50PCH series enhances durability and reliability. With an all-weather aluminum cabinet, these chillers are designed to withstand harsh environmental conditions, ensuring long-term performance. The units undergo rigorous testing to meet high industry standards for quality and reliability.

Another distinguishing characteristic of the Carrier 50PCH is its whisper-quiet operation. Engineered for low sound levels, these chillers minimize noise pollution in sensitive environments, such as hospitals, schools, or residential areas.

In summary, the Carrier 50PCH series combines exceptional performance, energy efficiency, and innovative technology in a robust and reliable package. It highlights the best in modern HVAC design, making it an ideal solution for a wide array of climate control needs in commercial and institutional settings. With its advanced features and commitment to sustainability, the 50PCH is undoubtedly a leader in the air-cooled chiller market.
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