Carrier 50PCH specifications Service, Description Status LED Test LED, Esd

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Table 31 — Aquazone Deluxe D Control Current LED Status and Alarm Relay Operations

DESCRIPTION

STATUS LED

TEST LED

FAULT LED (Red)

ALARM RELAY

(Green)

(Yellow)

 

 

 

Normal Mode

On

Off

Flash Last Fault Code in Memory

Open

Normal Mode with PM

On

Off

Flashing Code 8

Cycle (closed 5 sec, open 25 sec, …)

Deluxe D Control is non-functional

Off

Off

Off

Open

Test Mode

—

On

Flash Last Fault Code in Memory

Cycling Appropriate Code

Night Setback

Flashing Code 2

—

Flash Last Fault Code in Memory

—

ESD

Flashing Code 3

—

Flash Last Fault Code in Memory

—

Invalid T-stat Inputs

Flashing Code 4

—

Flash Last Fault Code in Memory

—

No Fault in Memory

On

Off

Flashing Code 1

Open

HP Fault

Slow Flash

Off

Flashing Code 2

Open

LP Fault

Slow Flash

Off

Flashing Code 3

Open

FP1 Fault

Slow Flash

Off

Flashing Code 4

Open

FP2 Fault

Slow Flash

Off

Flashing Code 5

Open

CO Fault

Slow Flash

Off

Flashing Code 6

Open

Over/Under Voltage

Slow Flash

Off

Flashing Code 7

Open (closed after 15 minutes)

HP Lockout

Fast Flash

Off

Flashing Code 2

Closed

LP Lockout

Fast Flash

Off

Flashing Code 3

Closed

FP1 Lockout

Fast Flash

Off

Flashing Code 4

Closed

FP2 Lockout

Fast Flash

Off

Flashing Code 5

Closed

CO Lockout

Fast Flash

Off

Flashing Code 6

Closed

 

LEGEND

 

 

 

CO

— Condensate Overflow

HP

—

High Pressure

ESD

— Emergency Shutdown

LP

—

Low Pressure

FP

— Freeze Protection

PM

—

Performance Monitor

NOTES:

1.If there is no fault in memory, the Fault LED will flash code 1.

2.Codes will be displayed with a 10-second Fault LED pause.

3.Slow flash is 1 flash every 2 seconds.

4.Fast flash is 2 flashes every 1 second.

5.EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followed by a 10-second pause. This sequence will repeat continually until the fault is cleared.

SERVICE

Perform the procedures outlined below periodically, as indicated.

IMPORTANT: When a compressor is removed from this unit, system refrigerant circuit oil will remain in the com- pressor. To avoid leakage of compressor oil, the refrigerant lines of the compressor must be sealed after it is removed.

IMPORTANT: All refrigerant discharged from this unit must be recovered without exception. Technicians must fol- low industry accepted guidelines and all local, state and fed- eral statutes for the recovery and disposal of refrigerants.

IMPORTANT: To avoid the release of refrigerant into the atmosphere, the refrigerant circuit of this unit must only be serviced by technicians who meet local, state and federal proficiency requirements.

IMPORTANT: To prevent injury or death due to electrical shock or contact with moving parts, open unit disconnect switch before servicing unit.

Filters — Filters must be clean for maximum performance. Inspect filters every month under normal operating conditions. Replace when necessary.

IMPORTANT: Units should never be operated with- out a filter.

Water Coil — Keep all air out of the water coil. Check open loop systems to be sure the well head is not allowing air to infiltrate the water line. Always keep lines airtight.

Inspect heat exchangers regularly, and clean more frequent- ly if the unit is located in a “dirty” environment. Keep the heat exchanger full of water at all times. Open-loop systems should have an inverted P trap placed in the discharge line to keep water in the heat exchanger during off cycles.

Closed-loop systems must have a minimum of 15 psig dur- ing the summer and 40 psig during the winter. Generally, the higher the water flow through the bail, the lower the chance for sealing.

Check P trap frequently for proper operation.

IMPORTANT: To avoid fouled machinery and extensive unit clean-up, DO NOT operate units without filters in place. DO NOT use equipment as a temporary heat source during construction.

Condensate Drain Pans — Check condensate drain pans for algae growth twice a year. If algae growth is apparent, consult a water treatment specialist for proper chemical treat- ment. Applying an algaecide every three months will typically eliminate algae problems in most locations.

Refrigerant System — Verify air and water flow rates are at proper levels before servicing. To maintain sealed circuit- ry integrity, do not install service gauges unless unit operation appears abnormal.

Check to see that unit is within the superheat and subcool- ing temperature ranges shown in Tables 16-26. If the unit is not within these ranges, recover and reweigh in refrigerant charge.

Compressor — Conduct annual amperage checks to en- sure that amp draw is no more than 10% greater than indicated on the serial plate data.

Fan Motors — All units have lubricated fan motors. Fan motors should never be lubricated unless obvious, dry opera- tion is suspected. Periodic maintenance oiling is NOT recom- mended as it will result in dirt accumulating in the excess oil and cause eventual motor failure. Conduct annual dry opera- tion check and amperage check to ensure amp draw is no more than 10% greater than indicated on serial plate data.

Condensate Drain Cleaning — Clean the drain line and unit drain pan at the start of each cooling season. Check flow by pouring water into drain. Be sure trap is filled to main- tain an air seal.

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Contents Contents Safety ConsiderationsInstallation GeneralPhysical Data 50PCH,PCV Units IPT A50-8695Size A50-7842ef Electric HeatA50-8696 Side Discharge Back DischargeA50-8489 Install Condensate DrainMount the Unit A50-6260efMetal Hose Minimum Bend Radii A50-6261tfA50-6262ef Copper FPT/PVCWire Field Power Supply FittingA50-8490 RVS Sensor, Low Temperature Protection Air CoilA50-8491 Reversing Valve SolenoidA50-8492 HpwsA50-8493 LONNational Electrical Code Optional Wiring Temperature Switch A50-8440A50 86978698 Units with Deluxe D and Wshp Open Multiple Protocol ControlsWshp Open Control 50PCH,PCV Unit Electrical Data A50-8162A50-8442 Wire Field ControlsA50-8441 Field-Supplied Sensors for Wshp Open Controller Rnet Wiring SpecificationsRnet Wiring SPT SensorsPRE-START-UP FAN Rated MIN 50PCH,PCV Blower Performance Standard Unit50PCH,PCV Blower Performance High-Static Unit PCV Speed Airflow CFMField Selectable Inputs Complete C Control Jumper Settings Refer toDeluxe D Control Jumper Settings Refer to , 15, START-UP DIP Switch Block S2 Accessory 1 Relay OptionsDIP Switch Block S2 Accessory 2 Relay Options Operating LimitsOperating Limits 50PCH,PCV Units Unit Start-Up Cooling ModeWater Temperature Change Through Heat Exchanger Cooling Heating Water Flow Rate GPM50PC012 Typical Unit Operating Pressures and Temperatures 50PC006 Typical Unit Operating Pressures and Temperatures50PC009 Typical Unit Operating Pressures and Temperatures Entering Cooling Heating Water50PC024 Typical Unit Operating Pressures and Temperatures 50PC015 Typical Unit Operating Pressures and Temperatures50PC018 Typical Unit Operating Pressures and Temperatures Temp GPM/ton Pressure Heat50PC042 Typical Unit Operating Pressures and Temperatures 50PC030 Typical Unit Operating Pressures and Temperatures50PC036 Typical Unit Operating Pressures and Temperatures Water Air Temp50PC060 Typical Unit Operating Pressures and Temperatures Unit Start-Up Heating Mode50PC048 Typical Unit Operating Pressures and Temperatures Unit Start-Up with Wshp Open ControlsA50-8444 BACview6 Display InterfaceGpm 30 F 50 F 70 F 90 F 10 C 21 C 32 C 006 009 Coaxial Water Pressure DropPressure DROP, psi kPa Units with Aquazone Deluxe D Control OperationUnits with Aquazone Complete C Control Units with Wshp Open Multiple ProtocolPage Auxiliary Modulating Hot Water/Steam Heating Reheat Complete C and Deluxe D Board System Test LED Fault Description Code Complete C Control LED Code Fault DescriptionsLED Status Description of Operation Alarm Relay Aquazone Deluxe D Control LED IndicaESD ServiceDescription Status LED Test LED ’ to 4’ Refrigerant ChargingA50-6286ef A50-8163 TroubleshootingAir Coil Fan Motor Removal Cooling mode FP1125 F or TroubleshootingAir temperature out of range Reduced or no airflow in heatReduced or no water flow Reduced airflow in coolingStatus Appendix a Wshp Open Screen ConfigurationAlarm Status SensorSystem Settings Appendix a Wshp Open Screen ConfigurationMaintenance ConfigurationSchedule Test Appendix a Wshp Screen Open ConfigurationService Screen Name Configuration ServicePoint Name Password Editable Range Default Level Alarm Page Copyright 2011 Carrier Corporation 50PCH,PCV START-UP Checklist II. START-UPA50-8445 Heating Cycle AnalysisCooling Cycle Analysis A50-8446

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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