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Water-sourced screw heat pump
30HXC

Refrigerant : HFC-134a

Compressor : screw fixed-speed

Nominal heating capacity : 340-1 560 kW

The 30HXC units are water-cooled heat pumps, designed from the ground up to meet the needs of today and tomorrow.

  • Quality design and construction
  • Very compact dimensions for easy installation
  • Two independent refrigerant circuits
  • Specific options for marine and process applications
  • Simple to service

Features

  • Non-controlled, non-ozone depleting HFC-134a refrigerant
  • HFC-134a is a proven, non-toxic, non-flammable refrigerant
  • Medium-pressure refrigerant HFC-134a minimizes stress on the compressors and ensures their long operating life
  • Equipped with screw compressors for extremely quiet operation and low-vibration levels
  • Exceed the efficiency level of average industry standards for both full- and part-load operation, saving on operating costs, through lower electrical costs
  • Control is fully automatic. The leaving water temperature is continuously monitored to detect load and flow changes. This combination provides the most precise temperature control available
  • Two independent refrigerant circuits - the second one takes over automatically, when the first one malfunctions, maintaining partial heating under all circumstances
  • Easy installation - the 30HXC heat pump are supplied with a full refrigerant charge, and conveniently located power supply and water inlet and outlet connections
  • Auto-diagnostics - quick display of the machine status
  • Multiple compressor concept for optimized part-load efficiency and minimized starting current
  • Series star/delta starter, limiting the start-up current on 30HXC 080-190 units
  • All units are also available as high condensing temperature with condenser insulation (option 150A). Their application range is the same as for the standard units, on which they are based, but they also allow condenser leaving water temperatures of up to 63°C. Pro-Dialog control offers all the advantages of the standard units, plus control of the leaving condenser water temperature

Easy installation

  • Compact design that fits through a standard door opening and requires minimal indoor space
  • Minimized installation cost
  • No extra controls, timers, starters or other items to install
  • Single power point and one main disconnect/isolator switch per circuit for sizes 30HXC 200 to 375. Hydraulic connections are simple and facilitated by the use of Victaulic connections for the evaporator and condenser
carrier-30HXC-water-sourced-screw-heat-pump-side-view

Simple to service

  • Mechanically-cleanable evaporator and condenser
  • Twin-screw compressors which require minimum routine service or maintenance
  • Easily accessed suction and discharge pressure and temperature information via a display module.

Pro-Dialog Plus control ensures intelligent leaving water temperature control and optimizes energy requirements.

  • The PID control algorithm with permanent compensation for the difference between the heat exchanger entering and leaving temperature, anticipates load variations, guarantees leaving water temperatures stability and prevents unnecessary compressor cycling
  • The long-stroke electronic expansion valves (EXV), together with refrigerant level control via heat exchange in the evaporator, allows a significant energy efficiency pump improvement at part load conditions, and faultless heat pump operation in a wider temperature range
  • Adjustable ramp loading, according to the inertia of the application, avoids load increases that are too fast and too frequent, increasing unit life and limiting power consumption peaks
  • Several capacity loading possibilities ensure improved start-up at low outdoor air temperature, and permit use of one of the refrigerant circuits as a back-up circuit

Pro-Dialog Plus ensures preventive protection and enhances heat pump reliability.

  • Equalization of compressor operating hours
  • No capillary tubes or pressostats (except as safety device)
  • Pro-Dialog Plus monitors all heat pump safety parameters
  • The fault history function and the fault codes facilitate immediate location of faults and in certain cases the conditions causing the alarm. Prognostic and preventive maintenance functions permit anticipation of possible problems

Pro-Dialog Plus offers extended communication capabilities

  • Clear and easy-to-understand operator interface. The LEDs, numeric displays and touch keys are well-positioned on the schematic heat pump diagram. The user immediately knows all operating parameters: pressures, temperatures, operating hours, etc.
  • The extensive heat pump remote control capabilities (wired connection) allow integration into building management systems
  • RS485 series port for connection to the Carrier Comfort Network (CCN) or any other monitoring system
  • Parallel piloting of two units as standard
  • Master/slave of two units operating in parallel
  • Programming of operating time schedules 
  • Control of the customer's water pump
  • Control at the second set-point
  • Set-point reset as a function of the air temperature or the difference between entering and leaving water temperature
carrier-Pro-Dialog-plus-control
  • Low temperature brine solution
  • Soft starter
  • J-Bus / BacNet / Lon gateway
  • High condensing temperature with condenser insulation

Features

  • Non-controlled, non-ozone depleting HFC-134a refrigerant
  • HFC-134a is a proven, non-toxic, non-flammable refrigerant
  • Medium-pressure refrigerant HFC-134a minimizes stress on the compressors and ensures their long operating life
  • Equipped with screw compressors for extremely quiet operation and low-vibration levels
  • Exceed the efficiency level of average industry standards for both full- and part-load operation, saving on operating costs, through lower electrical costs
  • Control is fully automatic. The leaving water temperature is continuously monitored to detect load and flow changes. This combination provides the most precise temperature control available
  • Two independent refrigerant circuits - the second one takes over automatically, when the first one malfunctions, maintaining partial heating under all circumstances
  • Easy installation - the 30HXC heat pump are supplied with a full refrigerant charge, and conveniently located power supply and water inlet and outlet connections
  • Auto-diagnostics - quick display of the machine status
  • Multiple compressor concept for optimized part-load efficiency and minimized starting current
  • Series star/delta starter, limiting the start-up current on 30HXC 080-190 units
  • All units are also available as high condensing temperature with condenser insulation (option 150A). Their application range is the same as for the standard units, on which they are based, but they also allow condenser leaving water temperatures of up to 63°C. Pro-Dialog control offers all the advantages of the standard units, plus control of the leaving condenser water temperature

Easy installation

  • Compact design that fits through a standard door opening and requires minimal indoor space
  • Minimized installation cost
  • No extra controls, timers, starters or other items to install
  • Single power point and one main disconnect/isolator switch per circuit for sizes 30HXC 200 to 375. Hydraulic connections are simple and facilitated by the use of Victaulic connections for the evaporator and condenser
carrier-30HXC-water-sourced-screw-heat-pump-side-view

Simple to service

  • Mechanically-cleanable evaporator and condenser
  • Twin-screw compressors which require minimum routine service or maintenance
  • Easily accessed suction and discharge pressure and temperature information via a display module.

Pro-Dialog Plus control ensures intelligent leaving water temperature control and optimizes energy requirements.

  • The PID control algorithm with permanent compensation for the difference between the heat exchanger entering and leaving temperature, anticipates load variations, guarantees leaving water temperatures stability and prevents unnecessary compressor cycling
  • The long-stroke electronic expansion valves (EXV), together with refrigerant level control via heat exchange in the evaporator, allows a significant energy efficiency pump improvement at part load conditions, and faultless heat pump operation in a wider temperature range
  • Adjustable ramp loading, according to the inertia of the application, avoids load increases that are too fast and too frequent, increasing unit life and limiting power consumption peaks
  • Several capacity loading possibilities ensure improved start-up at low outdoor air temperature, and permit use of one of the refrigerant circuits as a back-up circuit

Pro-Dialog Plus ensures preventive protection and enhances heat pump reliability.

  • Equalization of compressor operating hours
  • No capillary tubes or pressostats (except as safety device)
  • Pro-Dialog Plus monitors all heat pump safety parameters
  • The fault history function and the fault codes facilitate immediate location of faults and in certain cases the conditions causing the alarm. Prognostic and preventive maintenance functions permit anticipation of possible problems

Pro-Dialog Plus offers extended communication capabilities

  • Clear and easy-to-understand operator interface. The LEDs, numeric displays and touch keys are well-positioned on the schematic heat pump diagram. The user immediately knows all operating parameters: pressures, temperatures, operating hours, etc.
  • The extensive heat pump remote control capabilities (wired connection) allow integration into building management systems
  • RS485 series port for connection to the Carrier Comfort Network (CCN) or any other monitoring system
  • Parallel piloting of two units as standard
  • Master/slave of two units operating in parallel
  • Programming of operating time schedules 
  • Control of the customer's water pump
  • Control at the second set-point
  • Set-point reset as a function of the air temperature or the difference between entering and leaving water temperature
carrier-Pro-Dialog-plus-control
  • Low temperature brine solution
  • Soft starter
  • J-Bus / BacNet / Lon gateway
  • High condensing temperature with condenser insulation
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