CIAT COMFORT LINE Instruction Manual page 42

offers a choice between two types of motor technology: asynchronous
and brushless (low consumption).
To optimise the unit's performance and depending on the type of control used, the
unit has five speeds numbered V1 to V5 connected to the terminal block in the
electrics box (V1= low speed and V5= high speed).
The customer must wire the speeds for the thermostat at the top of the terminal block
between V1 and V5.
To open a connection point and change the cabling (Fig. 14):
- Place the end of a flat-blade screwdriver in the hole located just below the cable
to be removed, release the cable and move it to the marker for the desired speed.
- Place the screwdriver in the hole again just below the desired speed, insert the
cable and remove the screwdriver; this ensures a secure contact.
Repeat the procedure for the remaining customer speeds.
it is essential to refit the electrics box cover once all the cabling and
adjustment operations are complete.
This has a motor speed electronic control unit which uses a 0-10 V control signal or
3-speed on/off control (to be selected by the customer depending on the controller or
thermostat used with the unit).
- Controller or thermostat for 3-speed on/off control:
- Switch on the unit and select the ventilation speed to be modified using the
thermostat.
- Use the "CIAT speed control unit" accessory supplied as an option to adjust each
speed (rpm) in accordance with the instructions included with the speed control
unit .
- Controller managing a 0-10 V control signal:
- As the 0-10 V setpoint voltage signals are issued by the controller itself, refer to the
operating and configuration instructions supplied by the manufacturer.
Caution: If electric heaters are used, the lowest speed setting should never be
below 400 rpm.
To prevent any risk of damage, never connect several asynchronous or brushless
fan coil unit motors in parallel for the same thermostat.
The electrical connection for CIAT Comfort Units must be made in compliance with
international standard IEC 60364 (Electrical Installations for Buildings).
The leakage current on all our comfort units conforms to the requirements of IEC
60335-2-40 (Safety of household and similar electrical appliances):
- Complete comfort unit (with electric heaters) equipped with a multi-speed
motor: maximum leakage current = 2 mA
- Complete comfort unit (with electric heaters) equipped with an HEE motor
(brushless technology): maximum leakage current = 4.5 mA.
NA 12.48 F
EN - 8