Johnson Controls CWP Manual De Instalación Y Mantenimiento página 19

Plantas enfriadoras de agua con condensación por agua
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Control System
6.1.3 Summary of the key functions
The meaning of each key, in the different modes, is
summed up in the table below.
Key
State of the machine
SEL
Normal (i.e. the display shows the tem-
perature of probe B1)
Codes list
Value display
PRG
Normal
Codes list
Value display
Buzzer ON
Normal
Codes list
Value display
Normal
Codes list
Value display
PRG+SEL
Normal
Normal
SEL+
Normal
+
Hour meter display
PRG
Upon the switching on
Upon the switching on
PRG+
Upon the switching on
PRG+
Pressing the key
after 5" DIRECT parameters
displays the value
displays the codes list
after 5" password for USER parameters
stores parameters in eeprom and goes back to
the display of the temperature (probe B1)
stores parameters in eeprom and goes back to
the display of the temperature (probe B1)
turns off the buzzer
after 5" enters/quits the Summer mode
scans the parameters' codes
increases the value
after 5" enters/quits the Winter mode
scans the parameters' codes
decreases the value
after 5" password of FACTORY parameters
after 5" forces a manual defrosting cycle (if allowed by
the temperature/pressure conditions)
after 5" manual reactivation of the alarms,
immediate resetting of the hour meter
writes default parameters
copies key on machine eeprom
copies machine eeprom on key
Page 17
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