industrie technik evolution AHU-XXXSX1 series, User Manual

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• Modulating damper:
The modulating damper can be external or a bypass for heat exchanger.
Modulanting type damper Regulation type and settings
External regulated damper
It can be regulated based on CO
2
, free cooling and/or heating, free cool -
ing and/or h CO
2
, or humidity
010
= 3 (external modulating damper).
Select output for modulating damper
030
=9 (AO1) or
031
=9 (AO2) or
032
=9 (AO3).
Regulation on CO
2
:
011
=0 (regulation based on CO
2
)
023
=5 (input AI3 0..10V CO
2
)
Set regulation parameters from
167
to
169
(setpoint, proportional band
and integral time CO
2
)
Regulation on free cooling/heating:
011
=1 (regulation based on free cooling/heating)
Activate free cooling and/or heating with parameter
170
Set parameters of free cooling and/or heating from
171
to
178
(see “35.
Configuration of installer parameters (level 2 password)” page 120 )
Regulation on free cooling/heating and CO
2
:
011
=2 (azione basato sul free cooling/heating e CO
2
)
Attivare il free cooling e/o heating con il parametro
170
Set parameters of free cooling and/or heating from
171
to
178
(see “35.
Configuration of installer parameters (level 2 password)” page 120 )
023
=5 (input AI3 0..10V CO
2
)
Set regulationparameters from
167
to
169
(setpoint, proportional band
and integral time CO
2
)
Regulation on humidity (dehumidification):
011
=3 (regulation based on humidity)
Activate dehumidification:
with internal humidity sensor
139
=1 or
139
=3 in cooling only (models
AHU-xxxxH1 only)
or with remote humidity sensor
139
=2 or
139
=4 in cooling only,
023
=6
(input 0..10 V humidity) and put jumper JP1 on position “3-2”.
Set following regulation parameters:
- neutral zone humidity
141
,
- humidity setpoint
142
,
- proportional band humidity
143
,
- integral time humidity
144
.
Bypass for heat exchanger
it is regulated based on free cooling and/or free heating and on cooling/
heating request
011
=1 (regulation based on free cooling/heating)
Select type of heat exchanger (
012
≠0)
Select output for modulating bypass damper of heat exchanger
030
=13
(AO1) or
031
=13 (AO2) or
032
=13 (AO3).
(*) external damper not regulated can be used together with other type of damper defined by parameter
010
(
010
=1 or 2 or
3 or 4).