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Designs, materials, weights and performance ratings
are approximate and subject to change without notice.
Visit
armstrong
international.com for up-to-date information.
Preventative Maintenance and Fitting
Spare Parts
Batteries
O-Rings/Seals
Strainers
DRV components should be inspected annually, or more frequently where acknowledged site conditions such as high
mineral content water dictate.
Each DRV has a serial number that is maintained on file with the Technical Department at Armstrong.
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 are supplied to ensure 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 compounds and/or assemblies.
All “wetted” O-Rings/Seals must be replaced at least every 12 months as part of an annual maintenance routine. In systems
where water quality conditions are poor, more frequent replacement may be required.
All supply strainers must be thoroughly cleaned at least every 12 months as part of an annual maintenance routine. Cleaning
includes physically taking the strainer screen/basket out of the body and cleaning as well as flushing water through body. In
systems where water quality conditions are poor, more frequent cleaning may be required.
WARNING! Isolate power to the DRV. Ensure that the circulating pump is not operating.
