USER MANUAL – Release 1.2 of 01/01/2010 Page 28 of 191
Saturday energy saving time band definition
Sunday energy saving time band definition
Energy saving set increase in cooling mode
Energy saving differential in cooling mode
Energy saving set increase in heating mode
Energy saving differential in heating mode
Monday automatic ON/OFF time band definition
Tuesday automatic ON/OFF time band definition
Wednesday automatic ON/OFF time band definition
Thursday automatic ON/OFF time band definition
Friday automatic ON/OFF time band definition
Saturday automatic ON/OFF time band definition
Sunday automatic ON/OFF time band definition
Unit maximum working time in OFF from RTC if forced in ON from key
Compressor minimum ON time
Compressor ON time after its activation even if the demand is OFF
Compressor minimum OFF time
Compressor OFF time after its deactivation, even if demand is ON. The
relevant LED flashes during this period.
Minimum time between following activations of the same compressor
Switch-ON delay between 2 compressors/steps
Minimum delay between activation of two following capacity steps
(compressor or unloader). The compressor icon flashes during this period
(only for compressor)
Switch-OFF delay between 2 compressors/steps
Establishes the switch-off delay between the two capacity steps (compressors
or unloaders)
Maximum Delay between compressor ON and compressor maximum capacity
Delay between unit power ON and compressor ON
Delays the activation of all outputs to distribute the mains power consumption
and protects the compressor/s from repeated switch-on in the case of
frequent power supply failures
Unloaders activation mode (see relevant chapter)
0= ON/OFF activation with steps
1= continuous activation with direct action steps
2= continuous activation with inverse action steps
3= Continuous direct global step activation
Compressor minimum capacity enabling / unloaded compressor start
0 = Enables minimum power only at compressor start-up (start-up with
minimum capacity / idle running valve in OFF with compressor off )
1 = Enables minimum power at compressor start-up and in temperature
control mode (start-up with minimum capacity/idle running valve in OFF with
compressor OFF)
2 = Screw compressors: enables the minimum power only at compressor
start-up (start-up with minimum capacity / idle running valve in ON with
compressor off )
3 = Screw compressors: enables the minimum power at compressor start-up
and in temperature control mode (start-up with minimum capacity/idle running
valve in ON with compressor off )
Intermittent valve function
Screw comp. intermittent valve relay ON time. If the value of the parameter is
0 the function is disabled
Screw comp. intermittent valve relay OFF time
Compressor start-up
0= direct (see compressors start-up)
1= part – winding (see compressors start-up)
2= star delta (see compressors start-up)
If CO10= 1 part - winding start-up time. Varies the coupling of the two different
relays that feed the two motor windings.
If CO10= 2 Star delta start-up time. Varies the simultaneous working time of
the line n° 1 relay and the relay that closes the star centre connection. (see
part – winding / star delta start-up par.)
If CO10= 2 Star delta start-up time. Varies the time from the release of the
star centre to the coupling of the line n° 2 relay (see star delta start-up par.)
Switch-on time with gas by-pass valve/compressor idle running valve (see
unloaders working)