Carrier PCV015-060 specifications Reduced or no water flow, Reduced airflow in cooling

Page 42

Table 29 — Troubleshooting (cont)

FAULT

HEATING

COOLING

POSSIBLE CAUSE

SOLUTION

Only Compressor Runs

X

X

Thermostat wiring

Check G wiring at heat pump. Jumper G and R for fan operation.

 

 

 

 

Check Y and W wiring at heat pump. Jumper Y and R for compressor oper-

 

 

 

 

ation in test mode.

 

X

X

Fan motor relay

Jumper G and R for fan operation. Check for line voltage across BR

 

 

 

 

contacts.

 

 

 

 

Check fan power enable relay operation (if present).

 

X

X

Fan motor

Check for line voltage at motor. Check capacitor.

Unit Does Not Operate in

 

X

Reversing valve

Set for cooling demand and check 24 VAC on RV coil and at control.

Cooling

 

 

 

 

 

 

 

If RV is stuck, run high pressure up by reducing water flow and while

 

 

 

 

 

 

 

 

operating engage and disengage RV coil voltage to push valve.

 

 

X

Thermostat setup

Check for 'O' RV setup not 'B'.

 

 

X

Thermostat wiring

Check O wiring at heat pump. Check RV to ensure the valve is changing

 

 

 

 

over from heating and cooling modes. A 'click' should be heard when the

 

 

 

 

RV changes modes.

Insufficient Capacity/

X

X

Dirty filter

Replace or clean.

Not Cooling or Heating

 

 

 

 

X

 

Reduced or no airflow in

Check for dirty air filter and clean or replace.

Properly

 

 

 

heating

 

 

 

Check fan motor operation and airflow restrictions.

 

 

 

 

 

 

 

 

 

 

 

External static too high. Check blower Tables 8-11.

 

 

X

Reduced or no airflow in

Check for dirty air filter and clean or replace.

 

 

 

cooling

Check fan motor operation and airflow restrictions.

 

 

 

 

 

 

 

 

External static too high. Check blower Tables 8-11.

 

X

X

Leaky ductwork

Check supply and return-air temperatures at the unit and at distant duct

 

 

 

 

registers if significantly different, duct leaks are present.

 

X

X

Low refrigerant charge

Check superheat and subcooling Tables 16-22.

 

X

X

Restricted metering device

Check superheat and subcooling Tables 16-22. Replace.

 

 

X

Defective reversing valve

Manually check the four-way valve to ensure all valves are operational.

 

X

X

Thermostat improperly

Check location and for air drafts behind thermostat.

 

 

 

located

 

 

X

X

Unit undersized

Recheck loads and sizing check sensible cooling load and heat pump

 

 

 

 

capacity.

 

X

X

Scaling in water heat

Check for scale (water deposits) and clean if necessary.

 

 

 

exchanger

 

 

X

X

Inlet water too hot or cold

Check load, loop sizing, loop backfill, ground moisture.

High Head Pressure

X

 

Reduced or no airflow in

Check for dirty air filter and clean or replace.

 

 

 

heating

Check fan motor operation and airflow restrictions.

 

 

 

 

 

 

 

 

External static too high. Check blower Tables 8-11.

 

 

X

Reduced or no water flow in

Check pump operation or valve operation/setting.

 

 

 

cooling

Check water flow adjust to proper flow rate. See Table 15.

 

 

 

 

 

 

X

Inlet water too hot

Check load, loop sizing, loop backfill, ground moisture.

 

X

 

Air temperature out of range

Bring return-air temperature within design parameters.

 

 

 

in heating

 

 

 

X

Scaling in water heat

Check for scale (water deposits) and clean if necessary.

 

 

 

exchanger

 

 

X

X

Unit overcharged

Check superheat and subcooling. Reweigh in charge.

 

X

X

Non-condensables in

Evacuate the refrigerant, recharge the system, and then weigh the new

 

 

 

system

refrigerant charge.

 

X

X

Restricted metering device

Check superheat and subcooling per Tables 16-22. Replace.

Low Suction Pressure

X

 

Reduced water flow in

Check pump operation or water valve operation/setting.

 

 

 

heating

 

 

 

 

Plugged strainer or filter. Clean or replace.

 

 

 

 

 

 

 

 

Check water flow adjust to proper flow rate.

 

X

 

Water temperature out of

Bring water temperature within design parameters.

 

 

 

range

 

 

 

X

Reduced airflow in cooling

Check for dirty air filter and clean or replace.

 

 

 

 

Check fan motor operation and airflow restrictions.

 

 

 

 

External static too high. Check blower Tables 8-11.

 

 

X

Air temperature out of range

Too much cold vent air. Bring entering air temperature within design

 

 

 

 

parameters.

 

X

X

Insufficient charge

Check for refrigerant leaks.

Low Discharge Air

X

 

Too high airflow

Check blower Tables 8-11.

Temperature in Heating

X

 

Poor performance

See 'Insufficient Capacity'.

High Humidity

 

X

Too high airflow

Check blower Tables 8-11.

 

 

X

Unit oversized

Recheck loads and sizing check sensible cooling load and heat pump

 

 

 

 

capacity.

LEGEND

 

 

 

 

RV — Reversing Valve

 

 

 

 

42

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Contents Contents Safety ConsiderationsInstallation General50PCH,PCV Unit Physical Data 203 218209 224 Opening Unit 8412Connections 50PCH IPTTypical Installation 50PCH Units A50-8413 Typical Vertical Installation 50PCV Units Install Condensate Drain Mount the UnitA50-8489 A50-6261tf Metal Hose Minimum Bend RadiiSlope to drain Wire Field Power Supply FittingMves LOCBMC NECRVS TXVHpws High-Pressure Water SwitchPower Block Clippable Field Selection JumperA50-8493 Loss of Charge Pressure Switch Condensate PanMotorized Valve End Switch Temperature Switch LONNational Electrical Code Temperature Switch A50-8440A50-8355 A50 83548356 LWT Wshp Open Control MCA 50PCH,PCV Unit Electrical DataA50-8162 FLA HacrWire Field Controls A50-8441A50-8442 Field-Supplied Sensors for Wshp Open Controller Rnet Wiring SpecificationsRnet Wiring SPT SensorsPRE-START-UP Blower Speed Selection50PCH,PCV Blower Performance Standard Unit 50PCV Blower Performance with Hot Water Reheat HWR Option50PCV Blower Performance with Wet Coil 50PCH,PCV Blower Performance High-Static UnitComplete C Control Jumper Settings Refer to Deluxe D Control Jumper Settings Refer to , 15,Field Selectable Inputs START-UP DIP Switch Block S2 Accessory 1 Relay OptionsDIP Switch Block S2 Accessory 2 Relay Options Operating LimitsUnit Start-Up Cooling Mode Water Temperature Change Through Heat ExchangerOperating Limits 50PCH,PCV Units 50PC024 Typical Unit Operating Pressures and Temperatures 50PC030 Typical Unit Operating Pressures and Temperatures50PC036 Typical Unit Operating Pressures and Temperatures 50PC060 Typical Unit Operating Pressures and Temperatures 50PC042 Typical Unit Operating Pressures and Temperatures50PC048 Typical Unit Operating Pressures and Temperatures Temp GPM/ton Pressure HeatUnit Start-Up Heating Mode Unit Start-Up with Wshp Open ControlsGpm 30 F 50 F 70 F 90 F Coaxial Water Pressure Drop50PC Pressure DROP, psi kPa SizeOperation Approximate Fluid Volume gal Per 100 Ft of PipeAntifreeze Percentages by Volume Units with Aquazone Complete C ControlUnits with Wshp Open Multiple Protocol Auxiliary Modulating Hot Water/Steam Heating Reheat Page Complete C Control LED Code Fault Descriptions Complete C and Deluxe D Board System TestAquazone Deluxe D Control LED Indica Service Description Status LED Test LEDESD Refrigerant Charging Air Coil Fan Motor Removal’ to 4’ Troubleshooting Replacing the Wshp Open Controller’s BatA50-8163 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 Appendix a Wshp Screen Open Configuration ServiceTest Configuration Service Point Name Password Editable Range Default LevelScreen Name Alarm Page Copyright 2009 Carrier Corporation 50PCH,PCV START-UP Checklist II. START-UPA50-8445 Heating Cycle AnalysisCooling Cycle Analysis A50-8446

PCV015-060 specifications

The Carrier PCV015-060 is a cutting-edge packaged cooling and heating unit designed for commercial applications that demand high efficiency, reliability, and adaptability. This model is particularly renowned for its robust performance, making it an ideal choice for businesses seeking optimal indoor climate control.

One of the standout features of the PCV015-060 is its impressive energy efficiency. Equipped with advanced scroll compressors, this unit operates with a higher energy efficiency ratio (EER), translating to lower operational costs and reduced environmental impact. The incorporation of eco-friendly refrigerants further bolsters its sustainability credentials, ensuring compliance with modern environmental regulations.

The PCV015-060 showcases superior airflow design, which minimizes noise levels while maximizing thermal comfort. Its high-efficiency evaporator and condenser coils facilitate enhanced heat transfer, ensuring effective cooling and heating performance even in extreme weather conditions. This model is also designed with multiple fan speed options, allowing users to customize air distribution according to specific requirements.

Built with user-friendly controls, the Carrier PCV015-060 supports advanced digital thermostat interfaces, enabling precise temperature management. Optional integration with building management systems allows for remote monitoring and control, enhancing operational efficiency and simplifying maintenance tasks.

Durability is another hallmark of the PCV015-060. The unit is constructed using high-quality materials designed to withstand varying environmental conditions, which enhances the lifespan of the system. Additionally, its modular design simplifies installation and service access, reducing downtime for businesses.

The versatility of the PCV015-060 is underscored by its capability to function effectively in numerous configurations, including rooftop installations and ground-mounted setups. It can efficiently handle diverse applications, from offices to retail spaces, making it an adaptable choice for many commercial needs.

In summary, the Carrier PCV015-060 offers a blend of energy efficiency, advanced technology, and durable construction, making it a formidable solution for businesses seeking reliable climate control. Its commitment to sustainability, user-friendly features, and versatile configurations solidify its standing as a premier choice for commercial heating and cooling needs. With the PCV015-060, businesses can ensure a comfortable environment for both employees and customers while maintaining operational efficiency.
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