4-pipe systems heat pumps

LZTi SW6 7 ÷ 20 kW

LZTi P4

Description

The LZTi series of high efficiency heat pumps has been specifically designed for use with radiant floor heating systems or those applications where it is necessary to have maximum efficiency when heating.

They have been optimized on heating mode, are able to produce water up to 65°C and can operate down to -20°C ambient temperature.

LZTi units are available in 2 or 4 pipe (SW6) versions. Both versions can produce domestic hot water, in the standard LZTi through the activation of an external 3-way-valve and in the SW6 version by means of a separate heat exchanger and hydraulic circuit for the domestic hot water.

All models are supplied as standard with a reversing valve for defrost and cold water production in summer.

Versions

  • SW6 4 pipes unit capable of producing hot and cold water at the same time on two independent hydraulic circuits

Refrigerants

  • R410A

4-pipe systems heat pumps

LHi P4 50 ÷ 270 kW

LHi P4

Description

The LHi P4U/P4S series high-efficiency air-to-water heat pumps are units designed for four-pipe air conditioning and heating systems, which allow the simultaneous or separate production of cold water for cooling and hot water for heating.

The units are supplied with an additional exchanger, used as a condenser for hot water, whose production is independent of the unit’s operating mode. The exchanger is automatically activated by microprocessor control when the hot water temperature on the return flow is lower than the set applied. These units are able to produce hot water and cold water simultaneously and/or separately with very high energy efficiency.

They are all supplied complete with a specific advanced microprocessor control equipped with software for the management of the various priorities.

The XL versions also have an extremely low noise level thanks to the use of a special floating vibration dampening system that allows a noise reduction of about 5-7 dB(A) (optional).

Versions

  • RV Reversible heating/cooling
  • HH Heating only
  • SE Standard efficiency, EC fans
  • LS Low noise
  • XL Super low noise
  • P4U 4 pipe systems heating/cooling
  • P4S 2+2 pipe systems with D.H.W. production

Refrigerants

  • R410A

4-pipe systems heat pumps

LHA P4 20 ÷ 450 kW

LHA P4

Description

The high efficiency air / water heat pumps of the LHA series are units designed for 4-pipe air conditioning and heating systems, which allow the production of cold water for cooling and hot water for heating at the same time or separately.

The units are supplied with an additional exchanger, used as a condenser for hot water, the production of which is independent of the operation mode of the unit.
Activation of the exchanger takes place automatically via the microprocessor control when the hot water temperature on the return is lower than the set point. These units are able to produce hot water and cold water simultaneously and / or separately with very high energy efficiencies.

They are all supplied complete with a specific advanced microprocessor control provided with software for managing the various priorities.

The XL versions also have an extremely low noise level thanks to the use of a special floating vibration damping system that allows a noise reduction of about 6-8 dB (A) (optional).

Versions

  • SA Standard efficiency, AC fans
  • SE Standard efficiency, EC fans
  • HA High efficiency, AC fans
  • HE High efficiency, EC fans
  • LS Low noise
  • XL Super low noise
  • P4U 4 pipe systems heating/cooling
  • P4S 2+2 pipe systems with D.H.W. production

Refrigerants

  • R410A
  • R454B - on request

4-pipe systems heat pumps

LZT P4 20 ÷ 210 kW

LZT P4

Description

The high efficiency air / water heat pumps of the LZT/P4 series are units designed for 4-pipe air conditioning and heating systems, which allow the production of cold water for cooling and hot water for heating at the same time or separately.

The units are supplied with an additional exchanger, used as a condenser for hot water, the production of which is independent of the operation mode of the unit.
Activation of the exchanger takes place automatically via the microprocessor control when the hot water temperature on the return is lower than the set point. These units are able to produce hot water and cold water simultaneously and / or separately with very high energy efficiencies.

They are all supplied complete with a specific advanced microprocessor control provided with software for managing the various priorities.

The XL versions also have an extremely low noise level thanks to the use of a special floating vibration damping system that allows a noise reduction of about 6-8 dB (A) (optional).

Versions

  • SA Standard efficiency, AC fans
  • SE Standard efficiency, EC fans
  • HA High efficiency, AC fans
  • HE High efficiency, EC fans
  • LS Low noise
  • XL Super low noise
  • NN Ultra low noise
  • P4U 4 pipe systems heating/cooling
  • P4S 2+2 pipe systems with D.H.W. production

Refrigerants

  • R410A

Description

WZA heat pumps are particularly suitable for applications that utilise well water or ground source probes.
These units have been designed for use with radiant floor heating systems or those applications where it is necessary to have maximum efficiency when heating. They have been optimized on heating mode and are able to produce water up to 60°C.

WZA heat pumps are available in several versions. The most simple is a 2 pipe unit that can provide heating only. By fitting an external 3 port valve the unit can provide either heating or domestic hot water.
There is also a 4 pipe unit that produces domestic hot water in a separate hydraulic circuit and can generate this irrespective of whether the unit is in heating or cooling mode.

Differing versions and a wide range of accessories, enable the optimal solution to be selected.

Versions

  • P4S 2+2 pipe systems with domestic hot water production
  • PO Unit designed for well water
  • GE Unit designed for geothermal probe

Refrigerants

  • R410A

4-pipe systems heat pumps

WHA 50 ÷ 450 kW

WHA P4

Description

WHA heat pumps are particularly suitable for applications that utilise ground source probes.

These units have been designed for use with radiant floor heating systems or those applications where it is necessary to have maximum efficiency when heating. They have been optimized on heating mode and are able to produce water up to 60°C.

WHA heat pumps are available in several versions. The most simple is a 2 pipe unit that can provide heating only. By fitting an external 3 port valve the unit can provide either heating or domestic hot water. There is also a 4 pipe unit that produces domestic hot water in a separate hydraulic circuit and can generate this irrespective of whether the unit is in heating or cooling mode.
All the WHA units are also available in Free Cooling (FC) versions which provide low energy cooling by simply using the cool water that is available from either the ground source probes or the well water.

Differing versions and a wide range of accessories, enable the optimal solution to be selected.

Versions

  • RV/SW6 Reversible version heating/cooling with independent DHW circuit
  • FC Free cooling version (available in all versions)

Refrigerants

  • R410A