EN EN
MultiVent
®
– MV EC
Installation and Operating Instructions
19
6�4 Technical data for control inputs
7�1 Servicing and maintenance
m
Touching live parts will lead to electric shock�
Before any servicing and maintenance work, isolate the fan from the mains power supply and protect against
being switching on again!
m
Terminal compartment access is only permitted after power supply is disconnected and 5-minute waiting
period�
m
The rotating impeller can crush fingers�
Before any servicing and maintenance work, isolate the fan from the mains power supply and protect against
being switching on again!
– Excessive deposits of dirt, dust, grease, etc. on the impeller, motor, protection guard and, above all, between the
housing and the impeller, are not permitted, as these can lead to an unbalance in the impeller, overheating of the
motor or the blocking of the impeller. In such cases, the unit must be cleaned.
– In cases of longer periods of standstill, maintenance must be carried out when the unit is restarted.
The following must be checked:
• Secure attachment of the fan to the subsurface / system, replace in case of doubt
• Remove contaminant deposits
• Mechanical damage, disconnect unit, replace damaged parts
• Tight fit of screw connections, do not loosen screws in the process!
• Casing quality (cracks, brittleness of the plastic)
• Free movement of the impeller, impeller does not move freely, see Fault causes 8.1
Wear protective gloves when checking unhindered running of impeller!
• Bearing noises
• Vibrations – see Fault causes 8.1
• Current consumption according to type plate – see Fault causes 8.1
7�2 Standstill and disposal
m Danger to life due to electric shock!
When dismantling, live parts can be exposed, which can result in electric shock if touched�
Before dismantling, isolate the unit from the mains power supply and protect against being switching on
again!
Parts and components of the unit, whose service life has expired, e.g. due to wear and tear, corrosion, mechanical
load, fatigue and/or other eects that cannot be directly discerned, must be disposed of expertly and properly after
disassembly in accordance with the national and international laws and regulations. The same also applies to auxiliary
materials in use. Such as oils and greases or other substances. The intended and unintended further use of worn parts,
e.g. impellers, rolling bearings, filters, etc. can result in danger to persons, the environment as well as machines and
systems. The corresponding operator guidelines applicable on-site must be observed and used.
Number of possible fans with
PU / A PU / A SU / A-3 10 EUR EC ETR / DER ETR / DER
Type Poti feed
in V / mA
Control / setpoint
input in V / A
(load)
from a 10 V
fan power
supply (without
PU/A LED)
from a 10 V
fan power
supply (with
PU/A LED)
from a 10 V
fan power
supply
from a 10 V
EUR EC
power supply
from a 10 V
fan power
supply
EDR / ETR
power
supply with
external unit
NG24
Relay output Wiring dia-
gram
MV EC 100 10 V / 10 mA 0-10 V / 1,0 mA
(Ri = 10 kOhm)
8 2 8 10 not possible 10 NOC 250 V
/ 3 A
SS-1194
MV EC 125 10 V / 10 mA 0-10 V / 1.0 mA
(Ri = 10 kOhm)
8 2 8 10 not possible 10 NOC 250 V
/ 3 A
SS-1194
MV EC 150 10 V / 10 mA 0-10 V / 1,0 mA
(Ri = 10 kOhm)
8 2 8 10 not possible 10 NOC 250 V
/ 3 A
SS-1194
MV EC 160 10 V / 10 mA 0-10 V / 1.0 mA
(Ri = 10 kOhm)
8 2 8 10 not possible 10 NOC 250 V
/ 3 A
SS-1194
MV EC 200 10 V / 10 mA 0-10 V / 1.0 mA
(Ri = 10 kOhm)
8 2 8 10 not possible 10 NOC 250 V
/ 3 A
SS-1194
MV EC 250 10 V / 10 mA 0-10 V / 1.0 mA
(Ri = 10 kOhm)
8 2 8 10 not possible 10 NOC 250 V
/ 3 A
SS-1194
MV EC 315 10 V / 10 mA 0-10 V / 1.0 mA
(Ri = 10 kOhm)
8 2 8 10 not possible 10 NOC 250 V
/ 3 A
SS-1195
CHAPTER 7
SERVICING AND
MAINTENANCE
m
DANGER
m
DANGER
m
WARNING
nm
m
WARNING
n
m
DANGER
nm
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