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USER MANUAL – Release 1.2 of 01/01/2010
Page 94 of 191
Version: 02/03/2010
19.1 WORKING WITH DIGITAL INPUT CONFIGURED AS TEMPERATURE CONTROL REQUEST
Unit configured as motor-condensing CF04 = 1.
Temperature control request digital input (motor-condensing)
•
With contact NOT ACTIVE unit in
OFF
•
With contact ACTIVE unit in
stand-by
With contact active, they select the cooling or heating working mode. The steps, if available, will be called by
the digital inputs configured as resources in the circuits.
With contact active, if the unit has been switched-off from the keyboard re-start will also be from the
keyboard.
19.2 WORKING WITH DIGITAL INPUT CONFIGURED AS COOLING REQUEST
Unit configured as motor-condensing CF04 = 1
Cooling request digital input (motor-condensing)
•
With contact NOT active unit in
OFF
•
With contact active unit in
ON
in cooling mode
With contact active, unit in cooling working mode, the steps, if available, will be called by the digital inputs
configured as resources in the circuits.
With contact active, if the unit has been switched-off from the keyboard re-start will also be from the
keyboard. If the unit has been switched-off from the keyboard, it must be deactivated and re-activated in
order to re-start it from digital input.
19.3 WORKING WITH DIGITAL INPUT CONFIGURED AS HEATING REQUEST
Unit configured as motor-condensing CF04 = 1
Heating request digital input (motor-condensing)
•
With contact NOT active unit in
OFF
•
With contact active unit in
ON
in heating mode
With contact active, unit in heating working mode, the steps, if available, will be called by the digital inputs
configured as resources in the circuits.
With contact active, if the unit has been switched-off from the keyboard re-start will also be from the
keyboard. If the unit has been switched-off from the keyboard, it must be deactivated and re-activated in
order to re-start it from digital input.
Working error
If two digital inputs are configured as cooling request and heating request with both inputs active at the same
time, the unit will be positioned in OFF mode.
20. COMPRESSORS TEMPERATURE CONTROL
Enabling of compressor working
20.1 COMPRESSOR TEMPERATURE CONTROL IN COOLING MODE
The Par.
ST09
defines the probe for temperature control of the unit
(if ST12 = 1 just in circuit n° 1) in
cooling working mode
0= Evaporator inlet NTC temperature probe
1= Evaporator n° 1 outlet NTC temperature probe
2= Evaporator n° 2 outlet NTC temperature probe
3= Evaporator n° 3 outlet NTC temperature probe
4= Evaporator n° 4 outlet NTC temperature probe
5= Evaporator common outlet NTC temperature probe
6= n° 1 remote terminal temperature probe
7= n° 2 remote terminal temperature probe
