Outdoor heat pump for the production of chilled/hot water with hermetic rotary Scroll compressors, ozone-friendly refrigerant R410A, axial-flow fans, shell and tubes exchanger and electronic expansion valve. The range is composed by units equipped with four, six and eight compressors in multi-circuit configuration.

B - base version
CA - Class A of efficiency
SL - super-low noise version

NECS-N / -
base function
NECS-N / D
partial condensing heat recovery function

REFRIGERANT GAS R410A
The use of R410A has resulted in units offering better energy efficiency in full respect for the environment (ODP = 0)
SHELL AND TUBES EXCHANGER
The shell and tube exchanger allows to achieve the highest flexibility on the unit’s installation, keeping the efficiency at the maximum level. For this reason, NECS-N represents the best choice for all the hydronic application on the residential, commercial and industrial markets.
ELECTRONIC EXPANSION VALVE SUPPLIED STANDARD
The use of the electronic expansion valve generates considerable benefits, especially in cases of variable demand and different external conditions. It was introduced into these units as a result of accurate design choices concerning the cooling circuit and the optimisation of operation in various different working conditions
‘CLASS A’ EFFICIENCY
The full range is also available with the Class A efficiency rating. NECS-N/CA guaranties premium levels of efficiency thanks to the generous sizing of the refrigerant-exchange surface areas and to an accurate control of the fans.
INTEGRATED HYDRONIC MODULE
The incorporated hydronic unit already contains the main water circuit components; it is available in various configurations with one or two pumps with high or low head and the buffer tank