CHA/Y/EP 1352÷4402

Aircooled 4-Pipe multifunctional units with EC Inverter axial fans, Inverter Screw compressors and shell and tube exchangers

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ENERGYPOWER is the range of high efficiency multifunctional units for 4-Pipe systems.
The units CHA/Y/EP 1352÷4402, with R134a refrigerant, are provided with latest generation of Inverter Screw compressors and EC Inverter axial fans, to reach high EER/COP/TER and SEER/SCOP energy values. Thanks to the advanced control system, the units can simultaneously fulfill the heating, cooling and domestic hot water request of the building. The unit can manage the opposed thermal loads at the same time and reach the highest possible efficiency. ENERGYPOWER units make the traditional layout of the technical plants easier because the production of thermal energy for the several users are joint in one unit only; the result is an advantage in terms of installation, maintenance and management and in the meantime of the comfort needs.
Are available as option the new EC Inverter fans with high available static pressure and efficiency.
The units are compliant to the ErP Regulation.
On request, units can be supplied with R513A refrigerant.

Versions

CHA/Y/EP - Multifunctional unit
CHA/Y/EP/SSL - Super silenced multifunctional unit

Power range

278-1133 kW
79,0-322 Ton

Features

Structure with supporting frame, made of galvanised sheet metal with additional protection provided by polyester powder coating.
Screw Inverter compressors with built-in oil separator, suction filter, crankcase heater, oil sight glass and thermal protection.
EC Inverter axial fans directly coupled to an Inverter three-phase electric motor with external rotor. They attenuate the sound level of the unit using a continuous regulation of fans rotation speed and allow the cooling operation of the unit up to outside air temperatures of -20 °C.
Copper tube and aluminum finned coils.
Shell and tube condenser, with two independent circuits on the refrigerant side and one on the water side, complete with water differential pressure switch.
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 valves on discharge and liquid line.
Electronic expansion valve.
Electronic high and low pressure gauges.
R134a refrigerant. On request R513A refrigerant.
Electrical board includes: main switch with door safety interlock, fuses, thermal protection relays for compressors and thermocontacts for fans.
Microprocessor control and regulation system.

Accessories

Factory fitted accessories

IM Automatic circuit breakers
PFC1 Power factor correction condensers (cosφ 0,95)
SL Unit silencement
DSV Double relief safety valve with changeover switch on the high pressure side for each refrigerant circuit
DSVHL Double relief safety valve with changeover switch on the high and on the low pressure side of each refrigerant circuit
BT Low water temperature kit
ECH EC Inverter fans with high available static pressure
TX Coil with pre-coated fins
PUC Single circulating pump cooling side
PUIC Inverter single circulating pump cooling side
PDC Double circulating pump cooling side
PDIC Inverter double circulating pump cooling side
GS Single circulating pump gasket for glycol >30%
GD Double circulating pump gaskets for glycol >30%
FI Antifreeze heater for evaporator and condenser
FNC Antifreeze heater for pipes cooling side
FGC Antifreeze heater for single pump and pipes cooling side
FMC Antifreeze heater for double pump and pipes cooling side
FNH Antifreeze heater for pipes heating side
TS Touch Screen Interface
IS Modbus RTU protocol, RS485 serial interface
IST Modbus TCP/IP protocol, Ethernet port
ISB BACnet MSTP protocol, RS485 serial interface
ISBT BACnet IP protocol, Ethernet port
ISS SNMP protocol, Ethernet port
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
CP Potential free contacts
GDS Leak detector
MN High and low pressure gauges

Loose accessories

CR Remote control panel
RP Coils protection metallic guards
AG Rubber shock absorbers
AM Spring shock absorbers
FL Flow switch