EN
2.0 Scope of delivery
2.1 Accessories
CHAPTER 2
SCOPE OF DELIVERY AND
ACCESSORIES
5
MegaBox MBW EC.. / MBD EC..
Installation and Operating Instructions
MB-WK ...
Wall bracket f. wall mounting,
made from galv. sheet steel
MB-WK 225
Ref. no. 5526
MB-WK 250
Ref. no. 5526
MB-WK 280
Ref. no. 5527
MB-WK 315
Ref. no. 5527
MB-WK 355
Ref. no. 5528
MB-WK 400
Ref. no. 5528
FM ...
Flexible sleeve
for installation between fan
and ducting
FM 200
Ref. no. 1670
FM 250
Ref. no. 1672
FM 280
Ref. no. 1673
FM 355
Ref. no. 1675
FM 400
Ref. no. 1676
MB-WSD ...
Rain repellent roof
made from galv. sheet steel,
Fastening above the motor.
Types: MB EC 225/250/280
Ref. no. 1856
Types: MB EC 315/355/400
Ref. no. 1865
ë
ö
ò
Series parts:
ò
MegaBox
MB.. EC ...
ù
Condensate drain in casing base
MB-K
Accessories:
ä
Flexible sleeves
FM..
(accessories)
ë
Rain repellent roof
MB-WSD..
(accessories)
ö
Wall bracket
MB-WK..
(accessories)
Fig.4
ä
ù
ä
ö
FM ... T120
Flexible sleeve
for installation between fan
and ducting
FM 200 T120
Ref. no. 1654
FM 250 T120
Ref. no. 1655
FM 280 T120
Ref. no. 1656
FM 355 T120
Ref. no. 1658
FM 400 T120
Ref. no. 1659
m
For air flow temperatures
up to 75° C
m
For air flow temperatures
over 70° C
Protective function / Description
Safety device / Troubleshooting
Rotor position detection error
An automatic restart follows
Blocked rotor
After blockage is removed the motor restarts automati-
cally
Mains undervoltage
Mains input voltage beyond permit-
ted nominal voltage
If the mains supply returns to permitted values, the
motor restarts automatically
Phase failure detection (only with 3~ types possible)
One phase fails for at least 5 seconds
If all phases are connected correctly, the motor restarts
after 10 - 40 seconds automatically
Overtemperature protection electronics / motor
If the maximum temperature is achieved in electronics/
motor coil, the temperature control trips and the motor is
switched off
Let the device cool down. To reset the error message
switch off and on again the mains supply for at least 25
seconds.
