Wolf FGB-35 - Filling for Optional Appliance Versions

50
3064458_201811
Optionalboilerversions(subjecttocountry-specicversion):
Equipped with heating system lling facility with system separation
Fig: Filling facility integrated in the appliance on delivery
Fill valve
Fig: Filling facility with system separation
Applicablestandardsforllingfacilitywithsystemseparation
(DIN) EN 1717 Protection against pollution of potable water installations
(DIN) EN 14367 Non controllable backow preventer - Family C, type A
Also observe the country-specic standards and guidelines on installation and operation.
Installation and operating information:
The lling facility contains a system separator CA (class b) to DIN EN 14367.
According to DIN EN 1717, system separators of type CA are approved for liquids up to and including hazard
category 3 (e.g. heating water without inhibitors).
For Germany and Austria, only drinking water may be used for the (initial) lling of the heating system using the ll-
ing facility with system separator. An (initial) lling with treated water (deionised water, etc.) corresponds to a higher
hazard category, for which the CA system separator may not be used.
To ensure long-term and fault-free operation of the lling facility, we recommend using a dirt trap (ne lter) in the
DHW installation.
Operation:
For the lling procedure, open the ll valve and ll to about 2 bar system pressure (observe pressure indication on
control unit display). After lling, close the ll valve.
System separator CA
Maintenance:
The lling facility with CA system separator does not require any maintenance.
If there is water leaking from the CA system separator outlet, correct function can no longer be guaranteed and the
CA system separator should be replaced.
19. Filling for optional appliance
versions