EXact2

• Easy to operate
• 3 user levels, 2 of which require access via a 4-digit code (technician and specialist)
• Several indoor climate levels, e.g. via intregral weekly timer, with options such as on-demand ventilation

Summary of features

• Filter monitor
• Regulation of rotor rotation
• Temperature sensors
  • In the extract air spigot to measure/control room temperature
  • In the exhaust air spigot to measure exhaust air temperature
  • In the outdoor air spigot for outdoor air temperature compensation and night-time cooling
  • In the supply air spigot to measure/control supply air temperature
  • Duct temperature sensor (accessory)
  • Room temperature sensor (accessory)
• Overheating protection
• Fire alarm ((accessory)

>Closing damper - outdoor air (requirement for water heating coil) (accessory)

• Closing damper - exhaust air (accessory)
• Temperature adjustment
  • Regulation of the supply air temperature
  • Regulation of the room temperature

>Compensation functions

• • Outdoor air temperature compensation
  • Airflow reduction
  • Outdoor airflow compensation
  • Summertime compensation
  • CO2 compensation (accessory)
  • Humidity compensation (accessory)
• Night-time cooling
• Remote control
• Weekly timer
• Web server (accessory)
• Bus communication (requires web server)
• • Modbus TCP/IP
  • LONWORKS®

>Cooling recovery

>Constant pressure control (accessory)

>Motion sensor (PIR) (accessory)

>Airflow measurement

• Indoor climate levels
  • Timer-controlled (comfort, standby, economy, off)
  • Manual

>Trim damper for cleanblowing (accessory)

>Alarm log

>Timers

• Alarm relay

External heating coil

• Temperature sensors
  • In the supply air duct to measure/control supply air temperature
  • On the return pipe from the water heating coil to keep the heating coil warm and protect it from this
  • To protect external piping linked to the heating coil from icing (additional purchase)
  • Temperature sensor on supply pipe to water heating coil
• Modulating motor valve
  • Control of the heating coil circulation pump
  • Heat retention function (keeps heating coil free of ice)
  • Built-in motion control of the circulation pump for periods that do not require heating

External electric heating coil

• Temperature sensors
• Overheating protection
  • TSA60 is situated on the circuit board, trips at 60°C and has manual reset on the HMI panel
  • TSA70 is situated in the airflow, trips at 70°C and has manual reset
  • TSA120 is located in the airflow, trips at 120C and has manual reset in the heating coil and on the HMI

Module for control of external cool/heat pump unit

• Temperature sensors
• Control

External cold water coil

• Temperature sensors
  • In the supply air duct to measure supply air temperature
  • In the supply water pipe for the cooling coil
• Modulating motor valve
• Circulation pump control
  • Control of the water cooling coil circulation pump
  • Built-in motion control of the circulation pump for periods that do not require cooling

Control module for external cooling units

• Temperature sensors in the supply air duct to measure supply air temperature
• Control system for external cooling unit via:
  • Start/stop-signal
  • On-demand regulation 0-10 V (10-0 V)

Module for control of external cool/heat pump unit

• Temperature sensors in the supply air duct to measure supply air temperature
• Control of external cooling/heat pump unit via:
  • Start/stop-signal
  • Signal for cooling or heating
  • On-demand regulation 0-10 V (10-0 V)