Wilo Rexa UNI Series User Manual

en-US Product description
10 WILO SE 2017-03
▪Seal, on the motor side: NBR (V05), C/chrome (V06)
▪Seal, static: NBR
4.1.5 Attached accessories
Float switch
The A version of the pump is fitted with a float switch.
The float switch makes it possible to switch the pump
on and off automatically depending on the fluid level.
Plug
In the P and A versions, AC motors have a shockproof
plug and three-phase motors have a CEE plug attached.
The plug is designed for use in commercially available
shock-proof or CEE sockets and is not overflow-proof.
4.2 Monitoring devices
Monitoring the motor winding
The thermal motor monitor protects the motor winding
from overheating. A temperature limit with bimetallic
strip is built-in as standard.
For AC motors the thermal motor monitoring is auto-
switching. This means that the motor is switched off
when it overheats and is automatically switched back
on after it cools down.
For three-phase motors the thermal motor monitoring
must be connected into the switchgear or plug.
4.3 Operating modes
Operating mode S1: Continuous duty
The pump can operate continuously at the rated load
without exceeding the permissible temperature.
Operating mode S2: Short-time duty
The maximum operating period is specified in minutes,
e.g. S2-15. The pause must last until the machine tem-
perature is no more than 2K away from the tempera-
ture of the coolant.
Operating mode S3: Intermittent periodic duty
This operating mode defines a switching cycle at the
ratio of operating time and standstill time. The given
value (e.g. S3 25%) refers to the operation time. The
switching cycle has a duration of 10min.
If two values are given (e.g. S3 25%/120s), the first
value refers to the operation time. The second value in-
dicates the maximum time of the switching cycle.
4.4 Operation with frequency converter
Operation on a frequency converter is not permissible.
4.5 Operation in an explosive atmosphere
Operation in an explosive atmosphere is not permissi-
ble.
4.6 Technical data
General
Mains connection [V/F] see rating plate
Power consumption [P
1
] see rating plate
Rated power [P
2
] see rating plate
Maximum delivery head
[H]
see rating plate
Max. volume flow [Q] see rating plate
Activation type [AT] see rating plate
Fluid temperature [t] 3°C to 40°C
Protection class IP68
Insulation class [Cl.] F
Speed [n] see rating plate
Maximum switching
frequency
30/h
Maximum immersion
depth [8]
see rating plate
Cable length (standard
version)
10 m
Explosion protection -
Operating modes
Immersed [OTs] S1
Non-immersed [OTe] S2-15, S3 10%*
Pressure connection
UNI V05... DN50, PN10
UNI V06... DN50/65, PN10
* If the required cooling of the motor is ensured before
a re-activation, the operating mode S3 25% is permis-
sible! To ensure the required cooling, the motor must
be completely immersed for at least 1minute!
4.7 Type key
Example: Wilo-Rexa UNI V05/T06-540/P
UNI Series
V Impeller type = vortex impeller
05 Nominal diameter pressure connection
T Mains connection version: M = 1~, T = 3~
06 /10 = rated power P
2
in kW
5 Frequency mains connection: 5 = 50Hz, 6 = 60Hz

Wilo Rexa UNI Series Specifications

General

Brand	Wilo
Model	Rexa UNI Series
Category	Water Pump
Language	English