26
8.26 COMPRESSOR HOUR COUNTER MONITOR
This window displays the data relative to the operating hours of the compressors
on the unit:
0000h
0000h
Compressor 2:
Compressor 1:
Circuit 1
8.27 COMPRESSOR START-UP MONITOR
This window displays the data relative to the compressor start-ups on the unit:
0000
0000
Compressor 2:
Compressor 1:
Number of starts
Circuit 1
8.28 CONFIGURATION OF THE FAN SPEED
This window is used to congure the inverter fan signals:
1.0
6.0
10.0
Max V heating:
Max V cooling:
Minimum V:
Fans
Min volt: this value indicates the voltage at minimum speed before shutdown;
Max volt cold: this value indicates the voltage at maximum speed during cooling
mode;
Max volt hot: this value indicates the voltage at maximum speed during heating
mode;
8.29 CONFIGURE MASTER SLAVE
This window is used to congure the parameters for unit Master/Slave manage-
ment:
1.0%
NOCompressor o:
Slave Pump o with
Step:
ALONEUnit:
Master/Slave
(Unit: this value indicates the type of setting for the unit; this type can be:
— SINGLE: unit without Master/Slave connection;
— MASTER: identies the master unit;
— SLAVE: identies the slave unit;
Power step: the required power calculated by the thermostat is divided between
the master and slave units based on this parameter; (E.G.: 1% = the units work in
parallel; 100%= the units work in sequential mode (rst all the power of one is used
and then all the power of the other is used);
Slave pump O with CP O: this value indicates management of the pump on the
slave unit; this management can be:
— YES: the slave pump turns o if there is no request on the slave;
— NO: the slave pump turns on and shuts down together with the master;
8.30 CONFIGURATION OF THE FAN SPEED IN FREE COOLING
WARNING: this mask is available on free cooling units.
This window is used to congure the inverter fan signals during the free cooling
operation:
15.0°C
10.0V
10.0V
Frecooling
Delta T:
Max Volt:
Max Volt 100:
Delta T: value generated at the maximum fan speed at a design external air tem-
perature;
Max volts: maximum fan voltage during the free cooling operation.Used in silenced
units to reduce noise;
Max volts 100: Fan speed corresponding to 100% of free cooling power.E.g. with a
set value of 7 V in free cooling, the 100% available and supplied power value will be
reached when the fan speed reaches 7 V;
8.31 FREE COOLING CONFIGURATION (YIELD CONTROL)
WARNING: this mask is available on free cooling units.
This window allows to set the parameters related to the free cooling yield control
management;this check constantly veries that the free cooling coil generates a
delta T;
Used as a safety check on the operation of the 3-way valve. The control is active only
with ventilation at maximum air ow: