Wilo EMU TR 14 Series, Инструкция по установке и эксплуатации

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en Installation and electrical connection
26 WILO SE 2019-01
TR 14... TR 16... TR 21... TR 22... TR 28... TR 36... TR 40...
Motor compartment/sealing chamber*
− − − o − o o
Motor winding**
• • • • • • •
External monitoring devices
Sealing chamber
o o o o o o o
Legend
− = not available/possible, o = optional, • = standard
* In the Ex version, this monitoring is omitted and not substituted!
** A temperature limiter is fitted as standard. The Ex version as per ATEX also features
an installed temperature controller and limiter.
6.5.4.1 Monitoring of motor compart-
ment
Connect the electrodes via an evaluation relay. Relay “NIV 101/A” is recommended for
this. The threshold is 30 kOhm.
Wiring diagram
DK
Electrode connection
The system must be deactivated when the threshold is reached!
6.5.4.2 Motor compartment/sealing
chamber monitoring
Connect the electrodes via an evaluation relay. Relay “NIV 101/A” is recommended for
this. The threshold is 30 kOhm.
Wiring diagram
DK
Electrode connection
The system must be deactivated when the threshold is reached!
6.5.4.3 Monitoring of motor winding
With bimetallic strips
Directly connect bimetallic strips to the switchgear or via an evaluation relay.
Connection values: max. 250 V (AC), 2.5 A, cos φ = 1
Wiring diagram for bimetallic strip
Temperature limiter
20, 21
Bimetallic strip connection
Temperature controller and limiter
21
High temperature connection
20
Centre terminal
22
Low temperature connection
With PTC sensor
Connect the PTC sensor via an evaluation relay. Relay “CM-MSS” is recommended for
this. The threshold has been preset.
PTC sensor wiring diagram
Temperature limiter
10, 11
PTC sensor connection
Temperature controller and limiter
11
High temperature connection
10
Centre terminal