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AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – [email protected] – www.industrietechnik.it
17. Humidification ............................................................................................................................................42
• Using a modulating humidifier: .......................................................................................................................................................... 42
• Using an on/off humidifier:................................................................................................................................................................. 43
• humidification authorization for humidifier not managed by the controller: ....................................................................................... 43
18. Humidity supply limits function ................................................................................................................44
• Low dehumidification limit: ................................................................................................................................................................ 44
»
Low limit in dehumidification mode with modulating control: ....................................................................................................... 44
»
Low limit in dehumidification mode with on/off control: ................................................................................................................ 44
• Upper humidification limit: ................................................................................................................................................................. 45
»
High limit in humidification mode with modulating control:........................................................................................................... 45
»
High limit in humidification mode with on/off control: ................................................................................................................... 45
19. Temperature/humidity control priority .....................................................................................................46
• Temperature priority,
212
=0: .............................................................................................................................................................. 47
»
Temperature setpoint not reached: .............................................................................................................................................. 47
»
Temperature setpoint reached, control of humidity: ..................................................................................................................... 48
• Priority humidity,
212
=1: .................................................................................................................................................................... 49
»
Humidity setpoint not reached: .................................................................................................................................................... 49
»
Humidity setpoint reached, temperature control: ......................................................................................................................... 50
20. Free cooling/heating conditions ...............................................................................................................51
• Free cooling conditions: .................................................................................................................................................................... 51
• Free heating conditions: .................................................................................................................................................................... 51
21. Regulation with free cooling, free heating ...............................................................................................53
• Operation with on/off bypass damper for cross-flow heat exchanger ............................................................................................... 53
• Cooling operation using free cooling: ................................................................................................................................................ 54
»
Operation with modulating damper and modulating cooling valve:.............................................................................................. 54
»
Operation with bypass modulating damper without cooling valve: .............................................................................................. 54
»
Operation with on/off damper and cooling modulating valve: ...................................................................................................... 55
»
Operation with on/off bypass damper and cooling modulating valve: .......................................................................................... 55
»
Operation with on/off bypass damper without cooling valve: ....................................................................................................... 56
»
Operation with on/off damper and on/off cooling valve: ............................................................................................................... 56
»
Operation with on/off bypass damper and on/off cooling valve: .................................................................................................. 57
»
Operation with modulating damper and on/off cooling valve: ...................................................................................................... 57
• Heating operation using free heating: .............................................................................................................................................. 59
»
Operation with modulating damper and modulating heating valve: ............................................................................................. 59
»
Operation with modulating bypass damper without heating valve ............................................................................................... 59
»
Operation with on/off damper and modulating heating valve: ...................................................................................................... 60
»
Operation with on/off bypass damper and modulating heating valve: ......................................................................................... 60
»
Operation with on/off bypass damper without heating valve:....................................................................................................... 61
»
Operation with on/off damper and on/off heating valve: .............................................................................................................. 61
»
Operation with on/off bypass damper and on/off heating valve: .................................................................................................. 62
»
Operation with modulating damper and on/off heating valve: ...................................................................................................... 62
• Free cooling in winter: ....................................................................................................................................................................... 64
»
Operation with modulating damper: ............................................................................................................................................ 64
»
Operation with on/off damper: ..................................................................................................................................................... 64
»
Operation with on/off bypass damper: ........................................................................................................................................ 65
• Free heating in the summer: ............................................................................................................................................................. 66
»
Operation with modulating damper: ............................................................................................................................................ 66
»
Operation with on/off damper: ..................................................................................................................................................... 66
»
Operation with on/off bypass: ..................................................................................................................................................... 67
22. Operating mode of the fans ......................................................................................................................68
• On/off type fans with one, two or three speeds: ................................................................................................................................ 68
• Modulating fans: ................................................................................................................................................................................ 68
»
Manual control of speed (
009
=0): ................................................................................................................................................ 69
»
Control of speed based on CO
2
(
009
=1): ..................................................................................................................................... 70
»
Control of speed based on temperature (
009
=2): ........................................................................................................................ 71
»
Control of speed based on temperature ON/OFF (
009
=3): ......................................................................................................... 73
»
Control of speed based on temperature and CO
2
(
009
=4): .......................................................................................................... 75
»
Control of speed based on pressure with direct action (
009
=5): .................................................................................................. 75
»
Control of speed based on pressure with reverse action (
009
=6): .............................................................................................. 75
»
Control of speed based on dehumidification (
009
=7): ................................................................................................................. 76
23. Damper control ..........................................................................................................................................77
• On/off damper: .................................................................................................................................................................................. 77
»
Regulation of on/off damper based on free cooling/heating ........................................................................................................ 78
»
Regulation of on/off damper based on air quality ........................................................................................................................ 78
