Adjusting The Control And Safety Devices; Commissioning - CIAT DYNACIAT power LG Manuel D'instructions

16.6 Adjusting the control and safety devices

Units
Outdoor sensor
Chilled water inlet sensor
Chilled water outlet manifold
sensor
Hot water inlet sensor
Discharge sensor
circuit 1, circuit 2
Circuit 1 and circuit 2 evaporator
inlet freon sensor
High pressure switch
circuit 1 and circuit 2
Circuit 1 and circuit 2 low
pressure sensor
Circuit 1 and circuit 2 high
pressure sensor

17 COMMISSIONING

Checks prior to system start-up: Always read this manual
in full before attempting to commission the system.
Comply with applicable national regulations during testing and
installation.
Before commissioning the system, carry out the following
checks:
- Compare the complete system against the refrigeration and
wiring diagrams
- Make sure that all components are as specified on the
drawings
- Make sure that no documents and safety devices required by
applicable European standards are missing
- Make sure that there is sufficient clearance around the
system for maintenance and emergency purposes
- Check the assembled couplings
- Check the quality of the welds and seals and check for any
refrigerant leaks
- Make sure that all mechanical guards are in place and
functional
- Look into the problems of specific noise generated by the
installation.
- After opening the water
sure that water is flowing in the cooler while the
pump is running.
- The air in the hydraulic circuit must be bled before system
start-up.
For this operation, the pump(s) must have been started up.
To enable operation without triggering the compressor(s), all
our machines are delivered with the parameter "compressor
on authorisation" set to "NO".
The operation can therefore be carried out with no risk of
starting up the compressors by setting the machine control to
the "ON" position.
Once the hydraulic circuit has been bled, the machine is turned
on by switching the "compressor on authorisation" setting to
"YES" which authorises start-up.
List of parameters concerned:
- P230 Stage 1, circuit 1 "on" authorisation
- P231 Stage 2, circuit 1 "on" authorisation
- P232 Stage 1, circuit 2 "on" authorisation
- P233 Stage 2, circuit 2 "on" authorisation
- P235 Electric stage 1 'on' authorisation (Unit with Electric
Function
Adjust the setpoint according to the outdoor temperature
Control of the unit on the water return
Unit control if controller on water outlet
Unit control in hot operation
Compressor protection
Evaporator frost protection
Compressor safety devices
Low pressure value control
Fluid leak detection
High pressure value control
Controlling the unit by high pressure
Condensing pressure control
circuit valves, make
EN - 15
Electrical symbol
B1
B2
B11
B4
Circ. 1: B7A, B7B
Circ. 2: B12A, B12B
Circ. 1: B8
Circ. 2: B14
Circ. 1: HP1, HP3
Circ. 2: HP2, HP4
Circ. 1: BBP1
Circ. 2: BBP2
Circ. 1: BHP1
Circ. 2: BHP2
heater module)
- P236 Electric stage 2 'on' authorisation (Unit with Electric
heater module)
- P237 Electric stage 3 'on' authorisation (Unit with Electric
heater module)
- P238 Electric stage 4 "on" authorisation (Unit with Electric
heater module)
- Check the operation of the circulation controller
- Check for loose clamps on all pipes
- Check for loose electrical connections
- Leave the compressor's crankcase heaters on for 6 hours
before switching on the unit.
- After 6 hours, touch the crankcases to ensure that all heaters
have been working correctly (they should be lukewarm)
- Make sure current is supplied to the general connection
and that the voltage
acceptable limits (+10% to -10% compared to the
rated voltage)
FLEXIBLE COUPLINGS MUST BE USED ON THE HYDRAULIC
PIPEWORK (EVAPORATOR AND CONDENSER).
17.1 Commissioning
The system must be started and commissioned by a qualified
technician.
- The system must be charged with refrigerant and water
flowing in the exchangers when it is turned on and tested.
- Power up the main board
- Check that the machine is configured for local control
(regulator selection)
Settings
CONNECT2 controller
HP fault threshold:
R407C: 29 bar ± 0.7
R410A: 42 bar ± 0.7
Manual reset + Reset button
CONNECT 2 controller
supplied remains within
EN
the