rada DRV40, Product Manual, Page: 39 / 72

39
MAINTENANCE AND SPARE PARTS
Warning! Isolate power to the DRV40. Make sure that the
circulating pump is not operating.
DRV40 components should be inspected annually, or more frequently where
acknowledged site conditions such as high mineral content water dictate.
Each DRV40 has a serial number displayed on the rating label that is maintained
on file with the technical department at Kohler Mira Ltd.
For any installation, operation, maintenance or technical support details not covered
in this guide, please call our Technical Department quoting the model and/or serial
number.
Batteries
(also see 'Installation' )
Batteries must
be fitted to the Electronics Module to make sure the DRV switches
to Full Cold
in the event of a primary power supply failure, they should
not be
considered to be a backup power supply.
Battery life is variable depending upon usage. A battery error message appears on
the DRV display when they require replacing.
Where primary power supply failure occurs regularly or the DRV is installed within a
supply system where safety is critical, the batteries
must be changed at least every
12 months as part of an annual maintenance routine.
In noncritical systems or where battery usage is low, longer replacement cycles
may be considered up to a maximum of 5 years. Inspection of critical components
and/or assemblies.
CAUTION!
RISK OF FIRE OR PRODUCT DAMAGE IF INCORRECT TYPE OF BATTERY IS FITTED.
DISPOSE OF USED BATTERIES ACCORDING TO THE BATTERY MANUFACTURER'S INSTRUCTIONS.