Airflow QT 100B Installatie- en bedieningsinstructies - Pagina 4
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9041550_Model_QT_100_120B 30/06/2010 11:30 Page 3
Installation and Operation Instructions
4.0
Electrical connection
CHAPTER 4
All work must be carried out with the equipment fully isolated from the power supply. The electrical connection
ELECTRICAL
is to be carried out in accordance with the relevant wiring diagram and are only to be done by a certified
CONNECTION
electrician. The fan may not be operated with transformer controllers.
All relevant safety regulation, national standards and norms are to be adhered to.
WARNING
4.1
Electronic control board
The electronic control board allows the operation with 2 speeds (75/90 m
QT120B. The control board is fitted into a splash-proof casing.
EMV regulation
Important indication for the electromagnetic compatibility
NOTE
Interference resistance according to DIN EN 55014-2 depending upon impulse form and energy rate of 1000 V to
4000 V. With operation with fluorescent tubes, switch power supplies, electronically regulated halogen bulbs etc. these
values can be exceeded.
In this case additional suppression shielding activities are necessary (L -, C or RC elements, protection diodes,
resistors).
5.0
Cleaning and maintenance
CHAPTER 5
- Before cleaning, ensure that the fan is isolated from the power supply.
- Prevent unintentional restart !
CLEANING AND
- Clean device only with a damp cloth.
MAINTENANCE
- The device is maintenance-free.
5.1
Dismantling of fascia
Procedure:
1. Isolate the device from the power supply and prevent unintentional restart!
2. Remove the fascia (1) by using the correct tool (e.g. screw driver) and applying light pressure on the spring catches
left and right of the fascia (Fig.10).
3. Unfasten the screws of the control board cover (2) (Fig.7).
CHAPTER 6
6.0
Troubleshooting
- If the thermal protection trips this could be the result of dirt build-up, a hard running impeller and/or bearings.
TROUBLESHOOTING
Too high winding temperature through insufficient motor cooling, or too high air flow temperature could be the cause
of disturbance.
- Abnormal noises can mean worn out bearings.
- Vibrations can originate from an unbalanced or dirty impeller or due to the installation.
- Extreme performance reduction can occur if the fan must work against too high resistance of the ventilation system
or if there is a lack of sufficient supply air (causing also higher sound level).
3
hr) for QT100B & (150/170m
4
Installation and Operation Instructions
Wiring diagram overview
QuietAir 100B - 75 (90)m
3
/hr
QuietAir 120B - 150(170)m
/hr
3
3
hr) for
Footnotes:
a) During parallel connection of the terminal 1-2 an inverse
voltage rests respectively against the other not switched terminal.
Connect room lighting only via two-pole switch.
Functional description:
The fan QT100B is equipped with two speeds (75/90 m³/h) and
QT120B (150/170 m³/h) and operated with a two speed switch
(optional).
SS-930
1
2
N
L
1 2
a)
a)
L
I
0
L
L
N
SS-921
N
L
1
2
5
5