Safety and User Information CET.ACEC compact controller
6 FläktGroup DC-2017-0104-GB 2018-05/R1 • Subject to change
1.6 Safety-conscious work procedures
When working on 400 V/50 Hz power supplies:
• Observe all assembly instructions for the FläktGroup CET.ACEC compact
controller.
• Fluctuations or deviations of the line voltage may not exceed the tolerance limits
stated in the technical data, otherwise functional failures and excessive
pressures cannot be excluded.
1.7 Proper use
The FläktGroup CET.ACEC compact controller is specifically designed for controlling
or as controller for air-handling units of FläktGroup and depending on the equipment
version, regulating other units within a building automation system.
The FläktGroup CET-ACEC compact controller can be employed :
– to assign setpoints for room temperature
– to select fan speed
– for the control of:
– AC motor 3-speed
– EC motor continuously variable (0-10 VDC)
– 2-point valve body 2-pipe heater
– 2-point valve body 2-pipe cooling
– 2-point valve body 2-pipe Change Over, heating or cooling
– 2-point valve body 4-pipe heating and cooling
– for processing:
– External window contact or fault signal
– External clock timer or card reader)
– External switch-over of heating/cooling medium
– Room temperature probe
(NTC)
– External inlet sensor (NTC)
Damage through static discharge!
Electrocution through hazardous voltage will lead to death or serious injury.
• Disconnect the unit from the power supply and ensure the power cannot be
switched back on.
• Ensure the unit is voltage-free and isolated, earth and short circuit the unit, cover
or shield off neighboring live components.
ATTENTION
Damage to the unit!
While carrying out adjustment work on the FläktGroup CET-ACEC compact con-
troller, make sure that you discharge yourself statically before touching the circuit
board and electrical components.
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