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USER MANUAL – Release 1.2 of 01/01/2010
Page 25 of 191
Version: 02/03/2010
ST 21
Defines the circuit 2 temperature control probe in cooling 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 (Not Available)
7= n° 2 remote terminal temperature probe (Not Available)
0
7
ST 22
Defines the circuit n°2 temperature control probe in heating 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
8=
condenser water common inlet NTC temperature probe
9= circuit n° 1 condenser water inlet NTC temperature probe
10= circuit n° 2 condenser water inlet NTC temperature probe
11= circuit n° 3 condenser water inlet NTC temperature probe
12= circuit n° 4 condenser water inlet NTC temperature probe
13= circuit n° 1 condenser water outlet NTC temperature probe
14= circuit n° 2 condenser water outlet NTC temperature probe
15= circuit n° 3 condenser water outlet NTC temperature probe
16= circuit n° 4 condenser water outlet NTC temperature probe
17=condenser water common outlet NTC temperature probe
0
17
Circuit N° 1 PID regulation
Parameter Description
min
max
um
Resolution
ST 23
Circuit n° 1 proportional band
-25.0
-13
25.0
45
°C
°F
Dec
int
ST 24
Circuit n° 1 integral time
0
250
Secs
ST 25
Circuit n° 1 derivative time
0
250
Secs
ST 26
Circuit n° 1 derivative part multiplier
0
250
Secs
Circuit N° 2 PID regulation
ST 27
Circuit n° 2 proportional band
-25.0
-13
25.0
45
°C
°F
Dec
int
ST 28
Circuit n° 2 integral time
0
250
Secs
ST 29
Circuit n° 2 derivative time
0
250
Secs
ST 30
Circuit n° 2 derivative part multiplier
0
250
Secs
ST 31
Activation offset for compressors.
When the controlled temperature (coming from neutral zone) enters the
compressors activation zone the compressors/capacity steps are enabled
only if the variable exceeds (in cooling) or drops below (in heating) the
relevant threshold for at least ST31.
0.0
0
25.0
45
°C
°F
Dec
Int
ST 32
Compressor ON Delay time. The controlled variable must be over (in cooling)
or under (in heating) the above mentioned activation level for at least the
ST32 time before the compressor/capacity step is switched ON.
0
250
Secs
ST 33
Disabling offset for compressors.
When the controlled temperature (coming from neutral zone) enters the
compressors disabling zone the compressors/capacity steps are disabled only
if the variable drops below (in cooling) or exceeds(in heating) the relevant
threshold of at least ST33.
0.0
0
25.0
45
°C
°F
Dec
Int
ST 34
Compressor OFF Delay time.
The controlled variable must be under (in cooling) or over (in heating) the
above mentioned activation level for at least the ST34 time before the
compressor/capacity step is switched OFF.
0
250
Secs
Displays
Parameter Description
min
max
um
Resolution
N° 1 remote terminal
DP1
Analogue input to be shown on first row of the 1
st
Visograph keyboard
0 = no display (the line remains empty)
0
66
DP2
Analogue input to be shown on second row of the 1
st
Visograph keyboard
0
66
DP3
Analogue input to be shown on third row of the 1
st
Visograph keyboard
0
66
DP4
Analogue input to be shown on fourth row of the 1
st
Visograph keyboard
0
66
N° 2 remote terminal
DP5
Analogue input to be shown on first row of the 2
nd
Visograph keyboard
0
66
DP6
Analogue input to be shown on second row of the 2
nd
Visograph keyboard
0
66
DP7
Analogue input to be shown on third row of the 2
nd
Visograph keyboard
0
66
DP8
Analogue input to be shown on fourth row of the 2
nd
Visograph keyboard
0
66
Configuration
Parameter Description
min
max
um
Resolution
