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c8: Delay in switching OFF compressor after
Switching OFF the pump. Both in the Cooling and Heating operating mode, with the pump (or inlet fan) actuated upon
request of the controller (parameter H5=2), if the compressors deactivation is required, the controller will first deactivate
the compressors and then the pump (inlet fan in air-air units). If the pump (or inlet fan) is always on (H5=1), turning OFF
the unit will automatically stop the pump.
c9: Timer of compressor no. 1
It indicates the operating hours of the first compressor. When the value is being displayed, press simultaneously
to reset the timer. In this way the controller will not prompt the maintenance message.
cA: Timer of compressor no. 2
It indicates the operating hours of the second compressor. When the value is being displayed, press simultaneously
and
to reset the timer. In this way request for maintenance will not appear.
cb: Timer threshold during normal operation
It allows to set a threshold (operating hours of the
for maintenance. If cb=0, this function will be ignored.
cC: Timer of pump/Inlet fan (AIR-AIR)
It allows to set a threshold (operating hours) for the pump or the inlet fan. When the value is being displayed, press
simultaneously
and
Fans (parameters "F")
F1: Fans output
Determines the operating logic of the fans:
• = 0 no fans (no control action relative to fan overload)
• = 1 system with fans. This selection requires the presence of the optional boards for the management of fans (ON/OFF
or speed variation)
F2: Operating logic of the fans
It sets the operating modes of the fans. They can be:
• = 0 always ON independently of the compressors (unless the unit is on a stand-by situation)
• = 1 ON when the relative compressor is ON (parallel operating mode)
• = 2 ON when the relative compressor is ON, with ON/OFF regulation according to the min. and max. temperature
affecting speed (parameters F5, F6, F7 and F8). When the compressors are turned OFF, the relative fans are
deactivated independently of the condensation temperature/pressure.
• = 3 ON when the relative compressor is ON plus speed regulation. When the compressors are turned OFF, the relative
fans are deactivated independently of the condensation temperature/pressure.
RG66000889-REV.00
Compresso
Pump/Intel Fan
Time delay between pump/intel fun and compressor
to reset the timer.
compressor) after which the controller will prompt a request
21
and
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