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9.6 SELECTION OF THE HEATING ADJUSTMENT LOGIC
HEAT PUMPS ONLY
— Sets the probe on which to base heating adjustment. The potential choices are:
COND.INL. = Condenser inlet;
COND.OUT. = Condenser outlet;
COND.COM. = Condenser common outlet;
— Sets the dierential value to be applied to the hot setpoint
9.7 SETTING THE CLIMATIC CURVE TO BE USED IN
COOLING ONLY AIR/WATER UNIT
A B
C
— Indicates the current value of the following parameters:
Ext.temp. = value of the external air temperature;
Current set. = current value calculated for the cold setpoint based on the external
temperature;
A. Sets the external air temperature below which the cold setpoint is not
compensated
B. Sets the external air temperature above which the cold setpoint is compensat-
ed with the value indicated in the parameter (C)
C. Sets the maximum oset to be applied to the cold setpoint at the maximum
external air temperature value (B). Naturally, for external air temperature val-
ues between (A) and (B), the oset to be applied to the setpoint will be be-
tween 0 and (C), calculated directly proportionally to the increase in the exter-
nal air temperature (as shown in the graph)
9.8 LIMIT POWER REQUEST SETTING OF THE THERMOSTAT
Set a potential power request limit of the thermostat to prevent alarm conditions or
set a maximum ceiling on unit consumptions.
9.9 PUMP SETTINGS PAGE 1
— Sets the number of pumps installed on the system side. The number of pumps
can be 2 at maximum (in case of water/water machines in heating, this page is
used to dene the number of system side pumps)
— Sets the delay for compressor switch-on after switching on the system side
pumps
— Sets the delay switch-o of pumps on the system side after switching o the
compressors
9.10 PUMP SETTINGS PAGE 2
1. Sets the number of working hours after which the main pump is replaced by
the backup pump and vice versa. After the number of hours set, the pumps
will be inverted as soon as all the compressors are inactive. First the pump will
be switched o, then there will be a stop, equal to the waiting time specied
in parameter (2), after which the backup pump will be started as main pump
2. Sets the waiting time during the pump reversing stage
3. Sets how many days before forcing pump inversion in the event that the unit
never has compressors stopped
4. Sets use of the system side pumps to perform the antifreeze function when
required
9.11 DISPLAYS THE WORK HOURS STATUS OF THE
COMPONENTS OF THE UNIT PAGE 1
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