AQUACOOL GREEN

AQUACOOL GREEN –  ecological liquid chillers  with R290 refrigerant for application in  technology  and storage coldrooms. Cooling capacity 35- 388 kW ( data for MPG 35%  -2/-8 oC) 

Structure
Self-supporting  frame made of  galvanized steel  and protected with polyester powder paint.   

Compressors                                                                           
Semihermetic piston compressors with an oil sight glass and electronic protection with thermistors in  motor wiring within VCG units.

 Compact screw compressors with an integral oil separator and step-less capacity control system in VCGV units.

Evaporator
Brazed plate heat exchanger with two  independent refrigeration circuits and one water circuit in all units.

 Evaporators are insulated with flexible close - cell lining. A differential pressure switch   installed  for added safety in  a case of no water flow.  

 Condenser
Heat exchangers  - aluminium microchannel  blocks  with a very small internal volume. Coils are mounted in a V shape position within a robust  structure and connected  according to the need of refrigeration circuits.

Fans - the latest technology  AC axial fans  with thermal overload protection and a function of  speed control by means of electronic voltage regulator , IP54.

Refrigeration circuit
Each unit has two (VCG 290LT and 360LT – 4 circuits)   independent refrigeration circuits . Each circuit is equipped with  filter drier ,sight  glass,  electronic expansion valve, service valves. Protection devices  - high  pressure switch, low pressure  switch, anti-freeze protection

Electric box 
Resistant to atmospheric conditions, protection class IP 54. Main components: emergency switch, main fuses, contactors of the compressors, contactors and fuses of the fans, auxiliary transformer and microprocessor controller.

Model designation
 Example
VCG     210LT     H     P    S
1               2        3     4     5    
1-   series
2 - size
3 – noise level  version 
4  - hydraulic module 
5 – optional equipment

Noise level version
H
Standard version
L 
Low noise version – sound insulation of compressors ,  low speed condenser fans ( or fans with low noise level)

Hydraulic module
P/ 2P, PH /2PH
Basic hydraulic kit includes single  pump  - P or double pump- 2P ( the other pump is a stand-by one), expansion vessel , pressure gauge, safety valve , shut-off valve . PH – pump with higher head pressure.  Piping is insulated . 

ZP / Z2P,  ZPH/ Z2PH
Version with  a basic hydraulic kit  P/2P and an insulated inertial  storage tank, available for VCG series.

Optional equipment
E - EC fans
I - Inverter for fan speed control
C - Real time clock card
R - RS 485 card for Modbus comm.
M - HP, LP pressure gauges
A - Anti- vibration mounts
O - Heat recovery ( partial)
B -  Side protection panels 
P - Plant Watch Pro remote monitoring
T -   Shell&tube evaporators ( for VCG units)
W – Winter start-up kit 
X - Other