Cooling (Without Hot-Gas); Ooling With Fixed Setpoint; Ooling With Differential Setpoint (Ambient Tracking ) - Pfannenberg SMP55 Instrucciones De Uso

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9. Cooling (without Hot-Gas)

9.1.
The regulator gets the temperature measure from the thermoregulation probe; the setpoint is 22°C ± 1,5°C for
Water+Glycol units and 26°C ± 1,5°C for OIL units.
Control action is proportional to the error and it reaches saturation (100%) when the temperature is greater than the setpoint
plus the (param. Df1 "Hysteresys") divided by 2.
Fan is ON only when compressor is ON
Type
EB Water+Glycol
EB Oil
All EB
9.2.
The regulator gets the temperature measure from the thermoregulation probe; the setpoint is Ambient Temperature ± 1,5°C.
If the ambient temperature is out of working setpoint range the working setpoint will assume the maximum value (if the
ambient temperature is greater) or the minimum value (if the ambient temperature is less).
Control action is proportional to the error and it reaches saturation (100%) when the temperature is greater than the setpoint
plus the (param. Df1 "Hysteresis") divided by 2.
Fan is ON only when compressor is ON
Differential Setpoint Settings with TD option installed ("td" = 1 or ON)
Type
EB Water+Glycol
EB Oil
All EB
1
read only parameter
to change the mode of setpoint (differential; fixed) please refer to
2
12
Cooling with Fixed Setpoint
Fixed Setpoint Settings ("td" = 0 or OFF)
Parameter
St1
WS1
St1
WS1
Df1
Cooling with Differential Setpoint (Ambient tracking)
Parameter
St1d
1
WS1
St1d
1
WS1
Df1
70040-096_01-_.docx
Factory Setting [°C]
22
1
/
26
1
/
3
Factory Setting [°C]
0
/
0
/
3
„Changing of Setpoint
mode" chapter
2
Range of Setting [°C]
11,5 - 35
11,5 - 35
21,5 - 35
21,5 - 35
3-6
2
Range of Setting [°C]
-5 - +5
11,5 - 35
-5 - +5
21,5 - 35
3-6