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AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – [email protected] – www.industrietechnik.it
23. Damper control
The damper is either: on/off or modulating.
• On/off damper:
The on/off damper can be external, a bypass for heat exchanger or a bypass for cross-flow heat exchanger (based on free
heating/cooling only).
On/off damper type
Regulation type and settings
External damper (not regulated) (*)
Damper is open when air handling unit is switched on and closed with
delay
166
after ventilation is OFF.
Select the output for damper
025
=12 (DO1) or
026
=12 (DO2) or
027
=12
(DO3) or
028
=12 (DO4) or
029
=12 (DO5)
External damper regulated
It can be regulated based on CO
2
, on free cooling and/or heating, on free
cooling and/or h CO
2
, or on humidity.
010
= 1 (on/off damper regulated).
Select output for damper
025
=11 (DO1) or
026
=11 (DO2) or
027
=11
(DO3) or
028
=11 (DO4) or
029
=11 (DO5)
Regulation on CO
2
:
011
=0 (regulation on CO
2
)
023
=5 (input AI3 0..10V CO
2
) and put jumper JP1 on position “3-2”
Set regulation parameters from
167
to
169
(setpoint, proportional band
and integral time CO
2
)
Regulation on free cooling/heating:
011
=1 (regulation 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 (regulation on free cooling/heating and CO
2
)
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
)
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 humidity (dehumidification):
011
=3 (regulation based on humidty)
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
,
Bypass for heat exchanger
It is regulated based on free cooling and/or heating based on cooling
and/or heating request
011
=1 (regulation on free cooling/heating)
Select heat exchanger type (
012
≠0)
Select output for bypass of heat exchanger
025
=13 (DO1) or
026
=13
(DO2) or
027
=13 (DO3) or
028
=13 (DO4) or
029
=13 (DO5)
