Wilo Padus UNI, Инструкция по установке и эксплуатации

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Installation and electrical connection en
Installation and operating instructions Wilo-Padus UNI 33
ƒ
Connect all of the monitoring devices and check their function.
ƒ
Secure the earthing in accordance with the local regulations.
6.5.1 Fuse on mains side
Circuit breaker
The size and switching characteristics of the circuit breakers must
conform to the rated current of the connected product. Observe
local regulations.
Motor protection switch
Make provision for an on-site motor protection switch for devices
without a plug! The minimum requirement is a thermal relay/mo-
tor protection switch with temperature compensation, differential
triggering and anti-reactivation device in accordance with the
local regulations. In case of sensitive mains, make provision for the
installation on-site of other protective equipment (e.g. over-
voltage, undervoltage or phase failure relay, etc.).
Residual-current device (RCD)
ƒ
Install a residual-current device (RCD) in accordance with the
regulations of the local energy supply company.
ƒ
If people can come into contact with the device and conduct-
ive fluids, install a residual-current device (RCD).
6.5.2 Maintenance tasks
ƒ
Check the insulation resistance of the motor winding.
ƒ
Check the resistance of the temperature sensors.
6.5.2.1 Checking the insulation resistance of the motor wind-
ing
‡
Insulation tester 1000 V
‡
Motors with built-in capacitor : Short-circuited wind-
ings!
1. Check the insulation resistance.
⇒ Measured value at initial commissioning: ≥ 20 MΩ.
⇒ Measured value at interval measurement: ≥ 2 MΩ.
▶ Insulation resistance checked. If the measured values
deviate from the specifications, consult the customer
service.
6.5.2.2 Test the resistor of the temperature sensor
‡
Ohmmeter available.
1. Measure the resistance.
⇒ Measured value Bimetallic strip : 0 ohms (passage).
▶ Resistance checked. If the measured value deviates from
the specification, consult the customer service.
6.5.3 Connection of the single-phase AC motor (1~ motor)
U1/Z1
bn
U2 bu
Cr
M 1~
gn-y
e
L N PE
Fig. 4: Connection diagram 1~ motor
Wire colour Terminal
Brown (bn) L
Blue (bu) N
Green/yellow (gn-ye) Earth
The pump is equipped with a shockproof plug. The connection to
the mains is established by inserting the plug into the socket. The
plug is not watertight.
Bimetallic strips are installed in the motor for thermal motor mon-
itoring. The motor monitoring is self-switching. Separate connec-
tion is not possible.
If the pump is directly connected to the switchgear, cut off the
plug. Connect the connection cable according to the connection
diagram in the switchgear.
6.5.4 Connection of the three-phase AC motor (3~ motor)
W 5
1 2
V 4 U 3
M 3~
gn-y
e
L3 L2 21 20 L1 PE
250 V (AC); 2,5 A
cos φ = 1
Fig. 5: Connection diagram 3~ motor
Wire number Name Terminal
1 20 WSK
2 21 WSK
3 U L1
4 V L2
5 W L3
Green/yellow (gn-ye) Earth PE