NEMO HP...... R410A ..... 4,3 ÷ 31,4 kWt

MAIN FEATURES
Reversible heat pump.
13 models available, for a wide selection opportunity..
Average step of 2,5kW.
EER up to 4,44.
COP up to 4,18.
ESEER up to 4,80.
Scroll compressor.
R410A Refrigerant charge.
Single refrigerant circuit.
Plate type heat exchangers.
3-speed circulation pump.
Suitable for indoor installation.
 
COMPLETENESS OF EQUIPMENT AND OPTIONAL
The units are standardly equipped with 3-speed water pump.
On request is possible to install the system for the domestic hot water production and a chilled water tank.

INDOOR INSTALLATION
The machines are designed for indoor installation.

WORKING LIMITS IN COOLING MODE
Evaporator chilled water outlet temperature: -10÷20°C Condenser outlet water temperature: 20÷60°C
 

MAIN BENEFITS
Availability of partial heat recovery system.
Easily of maintenance.
Reduced noise emission
Eurovent Certification.
 

 
MAIN COMPONENTS
FRAMEWORK
Base, self supporting frame and paneling in steel plate with protective surfaces treatment in compliance with UNI ISO 9227/ASTMB117 and ISO 7253, and painted with epoxy powders.
Colour: RAL 9002
Insulation of the internal framework.

COMPRESSOR
Orbiting spiral (SCROLL) hermetic compressors with spiral profile optimized for R410A refrigerant.
ON / OFF capacity control (0 / 100%).
Crankcase heater.
Electric motor thermal protection via internal winding temperature sensors.
Rubber supports.
Electric motor:
Version M: single-phase electric motor with direct on line starting.
Version T: 2-pole 3-phase electric motor with direct on line starting.
 

REFRIGERANT CIRCUIT
Reversing valve for refrigeration cycle inversion.
Electronic expansion valve. The valve allows high performance and system efficiency thanks to a timely and accurate response to changes in temperature and pressure.
The expansion valve is equipped with energy reserve to allow the closure of the valve in the event of lack of power supply.
Service valves on liquid line and gas discharge.
Pressure transducers with indication, control and protection functions, on low and high refrigerant pressure.
High pressure safety switch with manual reset.
Refrigerant circuit with copper tubing with anticondensate insulation of the suction line.
Plastic capillary hoses for pressure sensors connection.
R410A refrigerant charge.
 
Phase sequence electronic relay.    ELECTRICAL PANEL
In accordance with EN60204-1 norms, suitable for indoor installation complete
 
PLANT SIDE HEAT EXCHANGER
Copper brazed plate type with cover plates, plates and connections in AISI 316 stainless steel.
Anticondensate insulation made of polyurethane.
Temperature sensors on water inlet and outlet.
Differential water pressure switch for water flow control.
3-speed circulation pump.

EXHAUSTION SIDE HEAT EXCHANGER
Copper brazed plate type with cover plates, plates and connections in AISI 316 stainless steel.
Anticondensate insulation made of polyurethane.
Temperature sensor on water outlet.
0÷10V proportional signal to manage the condensing/evaporating control system of the 2-way motorized valve.
 
with:
Main switch.
Magnetothermic switch or fuses for compressor.
Contactor for compressor.
Transformer for auxiliary circuit and microprocessor supply.
Panel with machine controls.
Summer / Winter working mode selector.
Power supply:
M: 230/3/50
T: 400/3/50+N.

CONTROL SYSTEM
Microprocessor control. The system includes:
Display for the visualization of the alarm codes, set values and temperature values.
Dynamic set point.
Compressor running hour meter.
Contact for general alarm remotization.
“Low Temperature” set for operation with chilled water production up to
-10°C.
 

HYDRAULIC CONNECTIONS OF HEAT EXCHANGERS
The heat exchangers’ threaded hydraulic connections correspond to ISO 228/1 – G M