8 Installation and commissioning
17
Use ZM 11 mounting plate for rectangular
wall breakthroughs.
3. Lay power cable (flush-mounted) up to the in-
stallation location. For spacing, see figure Min-
imum distances.
7.2 Ceiling
1. Perform installation preparations as described
in the chapter Wall.
2. Prepare cover. Remove the cover before
drilling the housing. Drill cover with suitable
drill to avoid moisture and the formation of
bacteria 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 properly. Al-
low for a condensation drain or condensate col-
lector in the riser.
7.3 Duct
1. Deburr edges on the inside of the duct.
2. Perform installation preparations as described
in Chapter Wall.
7.4 Housing
NOTICE Damage to unit/functional problems
in the event of rubbing impeller.
Do not fit flange sleeve either twisted or crushed.
Make sure that the surface is flat.
1. Check rear of housing for the presence of a
sealing ring and check that it is properly posi-
tioned.
2.
ECA piano STANDARD, ECA piano TC:
If
necessary, use auxiliary materials (e.g. foam
strip) for fixing in wall or duct. When doing so,
maintain a minimum distance of 20 mm to the
end of the socket! Do not tape over the attach-
ment of the shutters (arrow).
ECA piano H:
Attach foam strip as described
above
. This is important so that the unit
cannot draw in air from the outside.
7.5 Preparations for operation with
speed controller
Only for ECA piano STANDARD.
Not permissible for ECA piano TC and H mod-
els.
1. Remove shutters.
2.
STX
speed controller from the Maico range of
accessories.
NOTICE The fan will stop and have functional
problems if the output voltage on the speed
controller is too low.
Observe information in the speed controller oper-
ating instructions. Always set the minimum speed
on the speed controller so that the motor starts
up again after a power failure.
The technology used in the phase angle
controller may cause humming noises.
8 Installation and commissioning
8.1 Housing installation
NOTICE Damage to unit/functional problems
in the event of rubbing impeller.
Do not fit flange sleeve either twisted or crushed.
Make sure that the surface is flat.
1. Guide the power cable into the terminal com-
partment.
