CWW/K 726÷36012
Water cooled liquid Chillers and Heat Pumps with Scroll compressors and shell and tube exchangers
The CWW/K 726÷36012 series liquid Chillers and Heat Pumps, with R410A refrigerant, are designed for medium and large domestic or industrial systems which require medium-high power, space-saving units and quiet operation. These units are ideal for indoor installation and, equipped with a self contained structure, they reduce the overall dimensions to a minimum while at the same time making installation and maintenance operations easier.
The units are characterized by multi-compressor design on double cooling circuit, to reach high energy performances, reduction of current at start-up, elimination of inertial tanks and excellent silent functioning. The use of components built in large series makes them highly reliable and the management of a high number of compressors allows increased life span with reduction of machine stopping risks and easier maintenance operations.
On request, units can be supplied with R452B or R454B refrigerant.
Features
- Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
- Scroll compressors with oil sight glass, internal overheat protection and crankcase heater.
- Shell and tube type condenser with two independent circuits on the refrigerant side and one on the water side.
- Shell and tube evaporator with two independent circuits on the refrigerant side and one on the water side, complete with water differential pressure switch.
- Cooling circuit shut-off valve on liquid line in 1048÷36012 models.
- Electronic expansion valve.
- Electronic high and low pressure gauges.
- R410A refrigerant. On request R452B or R454B refrigerant.
- Electrical board includes: main switch with door safety interlock, fuses, thermal protection relays for compressors, interface relay and terminals for external connections.
- Microprocessor control and regulation system.
Accessories
Factory fitted accessories
- IM Automatic circuit breakers
- RE Adjustable minimum/maximum voltage and phase control relay
- SL Unit silencement
- RFM Cooling circuit shut-off valve on discharge line
- RFL Cooling circuit shut-off valve on liquid line
- PV2 2-Way electronic pressostatic valve
- PV3 3-Way electronic pressostatic valve
- BT Low water temperature kit
- HR Desuperheater
- HRT/P Total heat recovery in parallel
- FE Antifreeze heater for evaporator
- SS Soft start
- DPH Device for heating only Heat Pump operation
- WM Web Monitoring - Wireless remote monitoring (4G)
- IS Modbus RTU protocol, RS485 serial interface
- IST Modbus TCP/IP protocol, Ethernet port
- ISBT BACnet IP protocol, Ethernet port
- ISB1 BACnet MSTP protocol, RS485 serial interface, BTL certified
- ISBT1 BACnet IP protocol, Ethernet port, BTL certified
- ISS SNMP protocol, Ethernet port
- MTS Master/Slave Network Management
- IAV Remote set-point, 0-10V signal
- IAA Remote set-point, 4-20mA signal
- IAS Remote signal for second set-point activation
- IDL Demand limit from digital input
- IVV 0-10V signal for the management of the electronic pressostatic valve source side
- MN High and low pressure gauges
Loose accessories
- CR Remote control panel
- AG Rubber shock absorbers
- AM Spring shock absorbers
- FL Flow switch