thermital AF ACS 220 B, Operating And Installation Instructions

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ENGLISH
32
Here the water connection and mixing valve;
please provide an expansion tank (18 lt or
more), water filter before the cold water connec-
tion in order to save the quality of components
and connect the security valve to a discharge
connection.
Place the flow switch on the domestic hot water tap as shown in figure.
Connect the flow switch to the connector J22 on the main board.
FLOW SWITCH SPECIFICATIONS:
Diameter: 3/4”
Minimum flow rate: 1l/m
Convention: if there is flow (tapping) the switch must be closed (dry contact).
Expansion vessel installation is always warmly
recommended in order to prevent hydraulic
issues to Emix tank unit (e.g. due to suddenly
pressure change in the water inlet circuit) and,
most of all, to counteract the pressure increa-
sing due to water heating.
1. Remove the plastic cap.
2. Install a valve in order to discharge water
from the circuit (in case of need).
3. Install the expansion vessel min. 18 litres (½”
connection).
4. Turn the screw which must be positioned
with horizontal cut.
Connect here the
discharge valve and the
expansion vessel
Screw to be opened
Connect here the di-
scharge valve and the
expansion vessel
FLOW SWITCH
DHW
Screw to be opened