Technical Notice V1.0 / 01.09 Page 69 / 100
Tuning and maintenance 11
Chapter contents
This chapter describes the various possible control settings and the common maintenance operations
for the entire range of CSW chillers.
11.1 Control settings
11.1.1 Thermostat
For machines equipped with the hot gas by-
pass option, the thermostat operation is diffe-
rent.
See section “12.7 Hot gas bypass (G)” on
page 79.
11.1.1.1 Description of the buttons
(1) PRG/mute button
Stop the thermostat alarm
(2) UP / out button
Increase the displayed setting's value
Return to the previous parameter
(3) SET Button
Save the setting's value
Display the value of the selected parameter
(4) DOWN / def button
Decrease the displayed setting's value
Go to the following parameter
11.1.1.2 Indications on the display
COMP .....................1 Led indicates that the com-
pressor is in operation.
Operation ..............The value displayed corres-
ponds to the value read by
the temperature probe.
11.1.1.3 Changing the setting
A. Hold down the SEL button for 1 second.
Its value is displayed.
The selected value flashes after a few moments
B. Increase or decrease the setting's value using the UP and DOWN buttons.
C. Press on SEL to confirm your choice.
11.1.1.4 Stopping the alarm
A. Press on PRG.
The alarm code remains in memory until the alarm is stopped.
11.1.1.5 High temperature alarm
The threshold setting is only assigned in the factory.
Fig. 11-1 : Boutons du thermostat
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