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- Shut off the DHW flow by closing the ball valves (1a)
and (1b) for the cold water inlet and hot water outlet
respectively.
- Attach the flushing fluid supply to the cold water inlet
valve (2b).
- Attach the flushing fluid drain to the DHW outlet valve
(2a). Pump flushing fluid through the heat exchanger
until it is clean.
CE Declaration of conformity
Applying the CE mark to the controller, the manufacturer guarantees that the MFWC is in conformity with the following
directives:
- Low Voltage Directive 2006/95/EC
- Electromagnetic Compatibility Directive 2004/108/EC
The conformity of the product has been tested and the pertinent documentation and CE declaration of conformity are
conserved by the manufacturer.
General instructions. Be certain to read the following!
This technical documentation and the accompanying installation and operating instructions contain basic information and
important indications regarding safety, installation, setting, maintenance and optimum use of the controller. Accordingly, the
following instructions must be read and understood by the technician and by the user of the system before installing, setting
and operating the controller. All accident prevention directives, IEC standards, local power utility regulations, pertinent EN
standards and installation and operating instructions accompanying system components must also be observed.
Installation, electrical connection, setting and maintenance of the controller must be carried out only by expert service
technicians in possession of the requisite knowledge. Always keep these instructions in the vicinity of the controller.
Changes to the controller
If changes are made to the controller, the safety and functionality both of the controller and of the entire system may be
adversely affected.
- Changes, additions to or conversion of the unit are forbidden unless written permission is obtained from the manufacturer.
- It is also forbidden to install additional components that have not been tested in conjunction with the controller.
- If safe operation of the controller cannot be guaranteed, for example by reason of damage to any component part, then
switch it off immediately and have it repaired/replaced.
- Any component or accessory of the controller that is not in perfect condition must be replaced immediately.
- Use only original parts and accessories supplied by the manufacturer.
FLUSHING THE HEAT EXCHANGER
USE AND FUNCTIONS OF THE CONTROLLER
2b
12
2a
1a
1b
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