industrie technik evolution AHU-XXXSX1 series, User Manual

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AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – info@industrietechnik.it – www.industrietechnik.it
If the operating temperature rises above WCS , the modulating cooling valve starts to open. The icon is displayed.
The valve can be controlled with PI action if the integral time
117
does not equal 0 or with proportional action only if
117
=0.
The icon switches off if the valve closes when Treg <= WCS.
Modulating heating control and cooling on/off:
• The PI type controller operates in the following way for modulating control:
Control
heating
Control
cooling
Control
4 pipe
Control
heating
on/off
Treg
114
100%
0
Treg
100%
0
116
100%
0
Treg
123
114 116
ON
0FF
Treg
122
WHS
WCS
WHS
100%
0
Treg
I24
I14 I16
Set_comp
100%
0
Treg
I22
SetC
OUT
OUT
OUT
OUT
OUT
Control
cooling
on/off
ON
0FF
Treg
122
WCS
OUT
WHS WCS
ON
0FF
Treg
122
WHS
122
WCS
123
100%
0
Treg
123
114 122
WHS WCS
ON
0FF
Treg
122
WHS
116
WCS
123
0FF
ON
100%
0
OUTH OUTC OUTH OUTC
OUTH OUTC OUTH OUTC
Treg: control sensor
WHS = calculated heating setpoint
WCS = calculated cooling setpoint
123
: neutral zone
122
: hysteresis for on/off output.
114
: proportional heating band
OUTH: modulating heating output:
- modulating valve if
002
=2 and
030
=3 (AO1) or
031
=3 (AO2) or
032
=3 (AO3).
-
modulating electrical resistance if
002
=1 and
030
=6 (AO1) or
031
=6 (AO2) or
032
=6 (AO3).
OUTC: cooling output on/off:
- on/off valve if
003
= 2 and
025
=5 (DO1) or
026
=5 (DO2) or
027
=5 (DO3) or
028
=5 (DO4) or
029
=5 (DO5).
If the operating temperature drops below WHS , the heating valve starts to open or the modulating electrical resistance
starts to be modulated. The icon is displayed if a valve is controlled, the icon for a modulating electrical resistance.
The valve or modulating electric resistance can be controlled with PI action if the integral heating time
115
does not equal
0 or, with proportional action only if
115
=0.
The (or ) icon switches off if the modulating valve (or the electrical resistance) closes (or is no longer
powered) when Treg >= WHS.
If Treg > ( WCS +
122
), the cooling valve is activated. The icon is displayed.
If Treg <= WCS, the cooling valve is deactivated and the icon is switched off.
Controlling heating and cooling on/off:
• The PI type controller operates in the following way for modulating control:
Control
heating
Control
cooling
Control
4 pipe
Control
heating
on/off
Treg
114
100%
0
Treg
100%
0
116
100%
0
Treg
123
114 116
ON
0FF
Treg
122
WHS
WCS
WHS
100%
0
Treg
I24
I14 I16
Set_comp
100%
0
Treg
I22
SetC
OUT
OUT
OUT
OUT
OUT
Control
cooling
on/off
ON
0FF
Treg
122
WCS
OUT
WHS WCS
ON
0FF
Treg
122
WHS
122
WCS
123
100%
0
Treg
123
114 122
WHS WCS
ON
0FF
Treg
122
WHS
116
WCS
123
0FF
ON
100%
0
OUTH OUTC OUTH OUTC
OUTH OUTC OUTH OUTC
Treg: control sensor
WHS = calculated heating setpoint
WCS = calculated cooling setpoint
123
: neutral zone
122
: hysteresis for on/off output.
OUTH: heating output on/off:
- on/off valve if
002
= 4 and
025
=4 (DO1) or
026
=4 (DO2) or
027
=4 (DO3) or
028
=4 (DO4) or
029
=4 (DO5).
- electrical resistance on/off if
002
= 3 ,
025
=7 (DO1) or
026
=7 (DO2) or
027
=7 (DO3) or
028
=7 (DO4) or
029
=7 (DO5)
OUTC: cooling output on/off:
-
on/off valve if
003
=
2 and
025
=5 (DO1) or
026
=5 (DO2) or
027
=5 (DO3) or
028
=5 (DO4) or
029
=5 (DO5).