Caution :
- Water circuit pressure must not exceed 4 bar
- Expansion vessel mounted before the water pump
- Do not install any valve on the expansion vessel
- Make sure to install the water circulating pump immediately on the exchanger water inlet side
- Make sure that the water pressure at the circulating pump suction is equal to or higher than the minimum pressure NPSH
required, particularly in case of an " open " type circuit
- The water quality criteria have to be analysed.
- Frost protection devices are required for the machine and hydraulic installation, in particular draining possibility of the circuit.
In case of glycol being used against frost, check its physical properties and concentration before starting the unit
- Before carrying out the final hydraulic connections, the pipes must be flushed with clean water to remove possible debris.
■
Commissioning
Follow the instructions in the Installation, Operation, Commissioning and Maintenance manual.
The commissioning of the AQUACIA
T units must be carried out by CIA
T or a company agreed by CIA
T
Non exhaustive list of operations to be carried out during commissioning :
- Check the correct location of the machine
- V
erification of the electrical supply protection
- V
erification of the phases and correct rotation direction
- V
erification of the electrical connections on the unit
- V
erification of the correct sense of water circulation on the unit
- V
erification of the water circuit cleanliness
- Water flow adjustment to the specified value
- V
erification of the refrigeration circuit pressures
- V
erification of the correct compressors rotation direction
- V
erification of the water pressure drops and water flows
- Completion of running parameters check list
■
Maintenance operations and Warranty
Comply with the instructions in the Installation, Operation, Commissioning and Maintenance manual.
The AQUACIA
T chillers require specific routine maintenance operations which must be carried out by CIA
T authorized
Companies.
A report of the running parameters must be completed on the " check list " form and returned to CIA
T
It is necessary to take out a maintenance contract for the unit with a specialist on refrigeration machines agreed by CIA
T
, even
for the warranty period.
36
Water chillers
LD
WARNING :
A water filter (600 microns) must be mounted on the
unit inlet by the installer.
Isolating valves and manual
valves for water flow adjustment must also be installed.
PROPELLER
CONDENSER
A I R C O N D I T I O N I N G - R E F R I G E R A T I O N - A I R H A N D L I N G - H E A T E X C H A N G E -
N
N
A
A
0
0
4
4
.
.
5
5
3
3
0
0
A
A
