Wilo Stratos MAXO Serie Instrucciones De Instalación Y Funcionamiento página 208

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14.2.3 Dismantling/installation of the
sensor on pump housing
14.3 Pump venting
208
Maintenance
NOTICE
To loosen the leads: Open the WAGO "Cage Clamp" spring clip! Then pull out leads!
7. If necessary, undo and remove the CIF module.
8. Loosen interior hexagonal head screws (M4) in the control module.
9. Remove control module from the motor.
Installation of the control module
The control module is dismantled in the reverse sequence of installation.
Take into account the "Shutdown" section before dismantling/installing the sensor
on the pump housing!
The sensor at the pump housing is used to measure temperature.
WARNING
Hot components!
Pump housing, motor housing and lower module housing can get hot and cause
burns if touched.
▪ Allow the pump to cool down before commencing any work!
WARNING
Hot fluids!
There is a risk of scalding caused by escaping, hot fluid at high fluid temperatures
and system pressure values.
Residual pressure in the pump between the shut-off devices may suddenly push the
loose sensor out of the pump housing.
▪ Close shut-off device or drain unit!
▪ Follow the manufacturer's instructions and safety data sheets for possible additives in
the system!
Dismantling the sensor
1. Dismantle the two-part thermal insulation from the pump housing of single
pumps.
2. Pull sensor socket from sensor.
3. Loosen screws of the fixing plate.
4. Pull out sensor. If required, lift the sensor into the groove with a flat screwdriver.
Installation of the sensor on pump housing
The installation of the sensor on pump housing is done in reverse order of dismantling.
NOTICE
Ensure correct positioning during sensor installation!
1. Push the bar, which is located on sensor, into the groove at the sensor opening.
Trapped air in the pump housing causes noise. Open the "Pump venting" function in the
"Diagnostics and measured values" menu to vent the pump hydraulics.
In the "Diagnostics and measured values" menu, select
1. "Maintenance"
2. "Pump venting".
WILO SE 2018-11