UK │ 8. Installation preparations
14
8.2 Ceiling
1. Perform installation preparations as
described in Chapter 8.1.
2. Prepare cover [4]. Remove cover from
housing before drilling. Drill through cover
using an appropriate drill bit, in order to
prevent damp and the build-up of germs
in the fan housing.
NOTICE
Danger of short-circuits and damage to
unit if condensation builds up in the fan
housing.
Thermally insulate ventilation
ducts in professional manner. Allow for a
condensation drain or condensate collector
in the riser.
8.3 Duct
1. Debur edges on the inside of the duct.
2. Perform installation preparations as
described in Chapter 8.1.
8.4 Housing [1]
NOTICE
Damage to unit/functional problems
in the event of rubbing impeller [7].
Do not fit connecting flange so it is twisted
or crushed. Make sure there is a level
seating.
1. Check that the sealing ring [5] is present at
the rear of the housing and that it is seated
correctly.
2.
ECA piano STANDARD, ECA piano TC:
If necessary, supply additional material
(e.g. foam strip), to fix the unit to the wall
or duct. Make sure there is a minimum
distance of 20 mm to the end of the
connector. Don’t apply any adhesive to the
shutter bearing [6], see arrow.
ECA piano H:
Install foam strip as
described before.
This is important to
prevent the unit from drawing any air in
from outside.
8.5 Preparation for operation with
speed controller
Only with ECA piano STANDARD.
Not permitted for TC or H models.
1. Remove shutters [6].
2. Use an STU 1, ST 1 or STS 2,5 from the
Maico range of accessories..
NOTICE
The fan will not operate and cause
malfunctions if the output voltage from
the speed controller is too low.
Take note of the advice given in the speed
controller operating instructions.
Always set the minimum speed at the
speed controller, such that the motor starts
up again after a power failure.
There can be vibration noises
caused by the phase control
technology.