RG66001652_REV.02
30
LCW - LCR
SETTING OPERATING PARAMETERS
GENERALITIES
All the control devices are set and tested in the factory before the unit is dispatched. However, after the
unit has been in service for a reasonable period of time you can perform a check on the operating and
safety devices. The settings are shown in Tables II and III.
All servicing of the equipment is to be considered extraordinary maintenance and
may be carried out SOLELY BY QUALIFIED TECHNICIANS: incorrect settings may
cause serious damage to the unit and injury to persons.
The operating parameters and control system settings configurable by means of the microprocessor
control are password protected if they have a potential impact on the integrity of the unit.
TABLE II - SETTING OF CONTROL DEVICES
CONTROL DEVICE
SET POINT
DIFFERENTIAL
Service thermostat [Cooling]
°C
12 2
Service thermostat [H]
°C
40 2
TABLE III - SETTING OF SAFETY - CONTROL DEVICES
CONTROL DEVICE
ACTIVATION
DIFFERENTIAL
RESETTING
Antifreeze thermostat
°C +4 2 Automatic
Maximum pressure switch IV PED
bars 28,0
4
Manual
High pressure relief valve IV PED
bars 29,0
-
-
Minimum pressure switch
bars 2 1.5 Automatic
Modulating condensation control
device [optional]
bars 14
7
Time lapse between two starts of
the same compressor
s 360 -
-
Delay in flow switch alarm
s 20 -
-
Delay in low pressure alarm
s 120 -
-
