TECHNICAL MANUAL
CVM 3000
C 5030 CV/04-99 GB
39
9 Hour band programming
9.1 Keys
T23 - ON-OFF for hour band program execution. It can be used if the controller is not in
the hour band configuration or programming phase.
NASCOSTO 1 +T23- To access or exit the hour band programming phase.
Access to programming is possible only when all the displays are off (as in programming
mode) and the compressors are off.
NB: in order to operate with the hour bands, parameter 37 must be set to 1.
9.2 Led’s
T23 KEY LED – it is on when the hour band operating mode is active, it flashes during
programming.
9.3 The display during programming
B2
day;
B4
band;
B5
starting time;
C2
value selected based on the set keys and proportional band.
The B6 keys are used to modify the value visualised on the B2, B4, B5 display.
The B3 keys is used to select the parameter to be modified (day/band/starting time):
during the selection the corresponding display (B2/B4/B5) flashes.
The following keys are enabled: T2, T3, T9, T10,
i.e.
the set keys and proportional band
that can be set for each exchanger.
The desired operating mode for each circuit and each band can also be selected.
The A1 keys are used to select the active compressors within the programmed hour band.
