AIR-TO-WATER HEAT PUMPS – PRO SERIES – ZIRAN PRO MAXIMA KWRH
ziran pro maxima
Air-to-water heat pumps suitable for cold climates | water production up to 77ºC
41-84 kW
47-91 kW
Documentation & Features
Specifications table
Views & Dimensions
Controls
Documentation & Features
Commercial documentation
Available languages:
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Air-to-water heat pumps suitable for cold climates | water production up to 77ºC
In reversible version, designed for residential or commercial applications.
New PRO Series: Optimized for the use of R290 refrigerant and Full-Inverter technology.
Adaptation and Environment
- Reduced charge of natural R290 refrigerant of A3 class, which is environmentally friendly with a low global warming potential (GWP=3) and high thermodynamic performance.
- High-temperature water production.
- The robust and reliable design integrates leak detection and an ATEX extraction fan for maximum safety.
- With careful insulation, they ensure proper equipment protection and noise reduction, achieving ultra-quiet operation.
- The units are equipped with intelligent control that ensures an optimal defrosting process.
Energy Efficiency
- Compact Full-Inverter units equipped with FRASCOLD semi-hermetic inverter reciprocating compressors and high-quality EC fans, ensuring the best seasonal efficiency (SEER/SCOP).
- High-efficiency heat exchangers.
- These units have a wide operating range with high efficiency and extended operating limits, functioning at full load down to -25ºC outdoor temperature.
Specifications table
General characteristics
KWR
Refrigerant
R290
✓
Equipment with refrigerant charge
✓
Leak detector
✓
ATEX axial fan for refrigerant extraction
✓
ATEX centrifugal fan for refrigerant extraction
●
Indicator light in case of leakage
✓
Bodywork
Self-supporting chassis/cabinet in galvanized steel with a polyester powder coating cured in an oven
✓
Customized color to suit the needs of the installation
●
Enclosed compartment with panels for refrigeration components
✓
Polypropylene insulation of the panels in the refrigeration compartment
●
Enclosed compartment with 20 mm rock wool sandwich panels for refrigeration components
●
Enclosed compartment with panels for hydraulic components
●
Polypropylene insulation of the panels in the hydraulic compartment
●
Enclosed compartment with 20 mm rock wool sandwich panels for hydraulic components
●
Anti-vibration supplements
●
Compressors
BITZER piston technology with frequency inverter
✓
Compressor anti-vibration mounts
✓
Expansion valves
Electronic expansion valves
✓
Fans
KWR
Outdoor fans
EC axial fans with integrated curved nozzle
✓
Condensing pressure control
✓
High-performance EC axial fans
●
EC plug-fan radial fans
●
Heat exchangers
KWR
Coils
Cu tube and Al fin coils
✓
Cu tube bundle / polyurethane pre-lacquered Al fins
●
BLYGOLD: Cu tubes / Al fins with Blygold coating
●
COPPERFIN: Cu tubes / Cu fins
●
Heat exchangers
Propane-water heat exchanger, AISI 316L stainless steel plates, copper-welded and thermally insulated
✓
Energy
KWR
Energy recovery
Partial recovery of condensation energy for domestic hot water (DHW)
●
Pump in the condensation heat recovery circuit
●
Electric anti-icing heater in the plate heat exchanger for domestic hot water (DHW) recovery
●
Hydraulic
KWR
Pumps (version P/H)
Single pump, normal available pressure (7-12 mH₂O)
✓
Single pump with high pressure available (15-20 mH₂O)
●
Single pump, very high available pressure (25-30 mH₂O)
●
Pump with variable speed drive
●
Backup pump (standard pressure, high pressure, and very high pressure available)
●
Electronic pump
●
Electronic backup pump
●
Hydraulic components
Low temperature kit for operation with water outlet temperature < 0 ºC
●
Low outdoor temperature kit
●
Flexible water inlet and outlet connections
●
Water filter
●
Installation of pressure gauges at the inlet and outlet of the equipment for S version
●
Independent module with available buffer tank of 200 liters / 375 liters / 725 liters + electric heaters
●
Installation
KWR
Protection grilles
Coil protection grille
●
Insulation
Thermal insulation in all cold metal lines (refrigerant or water)
●
Power supply
400 V / III ph / 50 Hz with neutral
✓
400 V / III ph / 60 Hz
●
Other electrical voltages (see different options available)
●
Packaging
Packaging for maritime transport
●
Control
KWR
Electronic control and communication
Programmable electronic control AQUAMATIX
✓
Climatix HMI user terminal for AQUAMATIX control
✓
RS485 communication interface for ModBus communication
✓
Modbus TCP/IP and BACnet IP communication
✓
Additional control and safety components
Main switch in electrical panel
✓
Magneto-thermal protections for compressors, fans and pumps
✓
Differential switches
●
Low pressure switch for pump protection
●
PREMIUM phase control relay, with phase failure detection and direction of rotation protection
✓
EXCELLENT phase monitoring relay, adds phase unbalance, overvoltage and undervoltage detection
●
Triple protection for the plate heat exchanger with a water flow switch and anti-ice protections for both water and refrigerant
✓
Energy meter
●
Electrical panel
Electrical panel insulated against refrigerant leaks
✓
Fully wired electrical panel, with IP54 protection
✓
Forced ventilation of the electrical panel
✓
Design of electrical switchgear for high temperatures
✓
Tropicalised electrical panel
●
Socket for common use
●
Antifreeze electrical resistor in electrical panel for low outdoor temperatures
●
Views & Dimensions
Serie 1 S/P/H
Serie 2 S/P/H
Serie 3 S/P
Serie 3 H
Serie 4 S/P/H
| Chásis | Serie 1 | Serie 2 | Serie 3 | Serie 4 | ||
|---|---|---|---|---|---|---|
| S/P/H | S/P/H | S/P | H | S/P/H | ||
| L | (mm) | 3240 | 2420 | 3515 | 4940 | 5350 |
| A | (mm) | 1300 | 1100 | 1100 | 1300 | 1300 |
| H | (mm) | 2550 | 2345 | 2020 | 2550 | 2550 |
Controls
ZIRAN PRO MAXIMA includes the programmable electronic control AQUAMATIX and user terminal Climatix HMI.
It is compatible with optional RS485 card for Modbus communication and BACnet IP communication system.
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