10
Armstrong International
Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium
armstronginternational.com/brain
General
Installation must be carried out in accordance with these instructions, and must be conducted by
designated, qualied and competent personnel.
The installation must comply with all relevant national and local water plumbing regulations.
The installation must comply with all relevant national and local electrical wiring regulations.
The DRV40 must be installed per the piping diagrams (pages 12 - 15). All plumbing components are to be
supplied by the installer. Failure to include these components will compromise the DRV and system performance.
Installation
Caution! The DRV40 must be installed in a dry area where it will not be able to freeze
(minimum ambient temperature of 2 °C).
Warning! The DRV40 must be EARTHED.
The DRV40 is intended to be permanently connected to the xed electrical wiring.
A means for electrical isolation of the DRV40 shall be provided, this device must
be suitably located, easily reached and identied as to its purpose.
Notes:
1. DRV40 is supplied fully performance and pressure tested.
2. The DRV40 must be installed in an area where it is accessible for any maintenance tasks e.g. connecting
Laptop / PC, removal of the cover, replacing worn parts, etc.
3. Suitable connections for ease of maintenance should be used on the inlet and outlet ports. (Isolation valves
and unions.)
4. The hot and cold water inlet supply pressures must be nominally equal.
5. The cold inlet supply feed to the DRV40 must be “tapped” directly from the cold inlet supply to the water
heater.
6. The inlet supply pipework must be thoroughly ushed before tting the DRV40.
200 mm
50 mm
100 mm 100 mm 150 mm
50 mm
The Brain
®
DRV40 MUST ONLY
be installed in this orientation.
These clearance dimensions are
recommended for maintenance
purposes.
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