This series of air-water heat pumps satisfies the cooling and heating requirements of residential plants of small and medium size.
All the units are suitable for indoor installation and can be applied to fan coil plants, radiant floor plants and high efficiency radiators plants.
The refrigerant circuit, contained in a compartment protected from the air flow to simplify the maintenance operations, is equipped with scroll compressor mounted on damper supports, brazed plate heat exchanger, thermostatic expansion valve, reverse cycle valve, centrifugal fans (plug fan), finned coil made of copper pipes and aluminium louvered fins. The circuit is protected by high and low pressure switches and differential pressure switch on the plate heat exchanger.
The plate heat exchanger and all the hydraulic pipes are thermally insulated in order to avoid condensate generation and to reduce thermal losses.
All the units are equipped with variable speed fans control that allows the units to operate with low outdoor temperatures in cooling and high outdoor temperature in heating and permits to reduce noise emissions in such operating conditions.
The low noise acoustic setting up (AS) is obtained, starting from the base setting up (AB), reducing the rotational speed of the fans and mounting sound jackets on the compressors.
All the units are provided with a phase presence and correct sequence controller device.
All the units are accurately built and individually tested in the factory. Only electric and hydraulic connections are required for installation.
Storing and pumping module
- not present (VB — base version)
- standard, high head or modulating pump (VP — pump version)
- tank and standard, high head or modula- ting pump (VA — tank version)
Integrative electrical heaters
- not present
- standard in the tank Compressor starting
- standard (contactors)
- soft starter Fans control
- on-off control
- modulating control (condensation / eva- poration control)
Electrical loads protection
- thermal magnetic circuit breakers Compressor power factor correction
- Rubber vibration dampers Coil protection grille Remote control
- Modbus serial interface on RS485 Programmer clock
- Phase sequence and voltage controller Water flow switch
- Oil crankcase electrical heater Pressure transducer
- Coil protection kit for shipment Outdoor air sensor