Adjustment Of Regulation And Safety Equipement; Commissioning - CIAT aquaciat 2 LD Serie Handbuch

Adjustment of regulation and safety equipement

Regulating and
safety devices
External air sensor
2
Exchanger water inlet sensor
Exchanger water outlet sensor
Coil sensor (ILD-ILDC-ILDH)
Outlet sensor
Exchanger refrigerant
inlet sensor
Electronic high pressure sensor
Electronic low pressure sensor
Compressor safety
HP pressostat

Commissioning

Pre-commissioning checks
Never commission a machine without first having read the
manual in full.
National regulations must be respected during the testing of
the installation.
Before starting the unit, perform the following checks:
- Compare the entire installation with the refrigerant and
electrical diagrams.
- Check that all the components comply with the specifications
in the diagrams.
- Check that all the documentation and safety equipment
required by applicable European standards is present.
- Check that the access and emergency routes are
unobstructed.
- Check the assembly of the connectors.
- Check the quality of the welding and seals and make sure
there is no leakage of refrigerant fluid.
- Check the direction of rotation of the fans
Function
Regulation + safety
Regulation of condensing pressure
+ safety
Regulation + safety
Safety
Safety device with manual reset
Electrical symbol
Circuit 1 Circuit 2
B1
B2
B3 B10-B11
B4 B13
B7 B12
B8 B14
BHP1 BHP2
BBP1 BBP2
QG
HP1 HP2
- Check the protection against mechanical damage.
- Examine any noise emission problems specific to the
installation.
- After opening the water circuit valves, make sure that the
water circulates in the chiller when the pump is operating.
- Bleed the air from the hydraulic circuit.
- Check the operation of the circulation controller
- Check that the fixing collars have been tightened correctly on
all the piping
- Check that all the electrical connections are tightened
correctly
- Leave the crankcase heaters of the compressors powered for
6 hours before operating the compressor (Except LD - LDC -
LDH 80 90)
Touch the crankcases to make sure that the heaters have been
functioning correctly (they should be warm).
- Check that current is arriving at the general connection and
make sure that the supply voltage is within the permitted limits
(-10% to +6% compared to the rated voltage).
42
Adjustment
CONNECT
regulator
42b (R410A)