7
MiniVent M1/100 P/120 P
Installation and Operation Instructions
CHAPTER 5
CLEANING AND
MAINTENANCE
5.0
Cleaning and maintenance
- Before cleaning, ensure that the fan is isolated from the power supply.
- Prevent unintentional restart!
- Clean device only with a damp cloth.
- The device is maintenance-free.
5.1
Dismantling of facia
Procedure:
1. Isolate the device from the power supply and prevent unintentional restart!
2. Remove the facia
➊
by applying light pressure on the spring catches left and right of the facia (Fig.12).
3. Unfasten the screws of the control board cover
➋
(Fig.13).
6.0
Indications – Disturbance origins
- If the thermal protection trips this could be the result of dirt build-up, a hard running impeller and/or bearings.
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).
fig.12
Remove the facia by
applying light pressu-
re on the spring
catches left and
right of the facia)
fig.13
➊
➋
➊
UK
CHAPTER 6
INDICATIONS –
DISTURBANCE ORIGINS
