Heat pumps AWR-MTD2-XE reversible units are able to provide heating, cooling and domestic hot water. Particular attention was paid to the
winter, thanks to special technological devices is guaranteed beyond the normal limits of traditional units. Prana AWR-MTD2-XE can be combined with traditional systems or radiant panels, ensuring a high energy efficiency. All units are certified in accordance with the Class A
classification Eurovent energy in heating. This makes them particularly suitable for use radiant installations. The installation is greatly simplified through the integration of the hydraulic group simply by connecting the unit to water plant and electricity so that it can be put into operation.
Controls
NADISYSTEM
Electronic control Nadisystem provides great application flexibility. The remote keyboard kit wired indoor and outdoor temperature
sensors allow dynamic control of delivery temperature water, optimizing comfort in the room and increasing the energy efficiency.
The electronic board allows you to manage:
- wired remote control, backlit display complete with remote temperature and humidity probe
- outdoor temperature sensor for water plant side modular set point compensation
- a zone of direct heating for radiator, floor heating or fan coil
- domestic hot water production by external three-way valve (accessory)
- electrical heating element for possible integration and anti-legionella cycle for cylinder
- boiler or electric heater in substitution or in addition
- the room controller can customise up to six time bands. The presence of the programmable timer allows the creation of an operating profile containing up to 6 time bands.
- up to 4 heat pump in cascade (with N-CM component)
- several solutions through appropriate configurations of the controller and use of dedicated extension modules (accessorie), up to 5 zone.
The defrost adopts a proprietary self-adaptive logic, which features the monitoring of numerous operational parameters. This allows to reduce the number and duration of the defrost cycles, with a benefit for the overall energy efficiency.
Characteristics
VERSION
- Basic
H integrated electric heaterStructure and base in hot-dip galvanised steel with epoxy powder paint finish.
High efficiency, low drop AISI 316 stainless steel plate exchangers (water side) complete with closed-cell insulation with vapour barrier,anti-freeze heating element and differential pressure switch
Hermetic scroll type compressors, equipped with the crankcase heater and thermal protection
Finned coils made with copper pipes and aluminium fins with large exchange surface area (100% fully quality tested)
Axial electric fans, external rotor, 6-pole electric motor fitted with thermal protection, housed in aerodynamic conveyor profile with safety grill
Low external air temperature device:
continuous fan speed regulation with pressure switch
Modulating electrical resistance to avoid freezing of the base; the resistance is located between wing and base exchanger to improve and facilitate the flow of water during defrosting
Condensate collecting tray (models 0011÷0051)
Coil protection grille
Soft starter for 230V/1/50Hz units (ms)
Phase sequence control relay for three phase models
The water circuit comes complete with:
- Variable flow circulator for all models
- Differential pressure switch.
- Expansion tank
- Safety valve
- Manual filling assembly
- Pressure gauge
- Air vent valve
The full range is also available with the Class A efficiency rating (in heating).
Accessory
- Wired room terminal with backlit display, and with temperature and umidity probe
- Extension module for system configuration
- Three-way valve for domestic hot water
- Electric heater of integration for the heating system
- Electric heater for hot water cylinder, of integration and for anti-legionellosis
- Cascade management kit
- Serial card RS485 for ModBus
- External buffer tank and hydronic connecting kit
- Buffer tank 35,100, 200 liters
- Hot water cylinder 300,500 liters
- 300 liters thermal store for domestic hot water, for DOMH2O kit
- 300, 500, 1000 liters thermal store for domestic hot water with solar heat exchanger, forDOMH2O kit
- DOMH2O15 e DOMH2O24 kit for domestic hot water with external plate heat exchanger and pump