EN
33
9 Operator‘s responsibilities
You have purchased a durable and service-friendly product. However,
this also entails obligations. For a perfect function you must ensure:
● Intended operation.
● Regular inspections and service work.
In case of changes in water quality or flow rates, the limits of use of the
system must be checked.Prerequisites for the function and safety of
the product are inspections, regular inspections (every 2 months) by
the operator and a half-yearly (every 6 months) routine maintenance
(EN 806-5) of the entire drinking water installation. A further prerequi-
site for function and warranty is the replacement of wear parts at the
prescribed intervals.
9.1 Intended operation
The intended operation of the product includes commissioning, ope-
ration, decommissioning and, if necessary, recommissioning. Proper
operation of the product and the drinking water installation requires
regular checks, servicing and operation in compliance with the operating
conditions used for planning and installation.
9.2 Inspections
(by the operator)
BWT recommends that the operator regularly carries out and logs the
following checks:
Water pressure:
If the pressure conditions change, the limits of use of the system must
be checked.
Water quality:
If the water quality changes (UV transmission), the operating limits of
the system must be checked.
Flow rate:
If the flow rate (l/min) changes, the operting limits of the system must
be checked.
Operating status of the product:
Checking whether error messages were issued
Tightness:
Checking whether water escapes from the system
Contamination and calcification:
Check whether foreign particles or deposits influence the proper ope-
ration of the device
Condition of the device:
Check whether there is damage and whether all parts are in the inten-
ded place
9.3 Inspections
(according to EN 806-5 by the operator)
Inspection activity
Range
Control Change of pressure conditions
every 2 months
Control Change in water quality (UV transmis-
sion)
every 2 months
Flow rate change control (l/min)
every 2 months
Checking the operating status of the product
every 2 months
Product tightness check
every 2 months
Control of soiling and calcification of the product
every 2 months
Product condition control
every 2 months
Functional check
Range
Check connection cable and housing for damage every 2 months
Check cable laying
every 2 months
Check protective conductor connections
every 2 months
Measuring the current consumption of the entire
system
every 2 months
Voltage measurement
every 2 months
9.4 Maintenance according to EN 806-5
(by BWT customer service or authorized specialist)
Part exchange
The operator must ensure that parts which are subject to wear and ageing
during the service life of the product are replaced by BWT customer
service or an authorised specialist.
The detailed replacement cycles can be seen in the table below.
According to BGV A2 (VBG4) Electrical safety inspection every 2 years
Maintenance activity
Range
Cleaning the emitter sheath tube + the sensor
every 6 months
Maintenance
activity
Wearing part
Range
Replace wea-
ring parts
Filtermats
every 6 months
Emitters
every 10000-
14000 h
Ssensor
every 16000 h
Sensor sealing
every 16000 h
O-ring blue protective cap
every 8000 h
Single/Multi-irradiator O-ring
every 8000 h
Radiator tube
every 8000 h
Bearing ring
every 8000 h
Sensor seal 1-181523
every 8000 h
In Germany only:
According to BVG A2 (VBG4), the unit must be tested for electrical
safety every 4 years.
