Installation notes
These instructions must be observed and applied during installation, to prevent problems from
arising during fitting or normal operation. Before proceeding with installation, CAREFULLY read
brochure 01212 and instruction sheet code 78202 (available on the website www.caleffi.com).
You should therefore:
A) Carefully measure the dimensions of heat interface unit SATK50 so that it is ideally positioned
on the wall. You should also make sure that the cover can be removed with no obstruction once
the SATK50 has been fitted.
B) Use at least 6 wall anchors (not supplied) to secure the SATK50. The wall anchors must be
chosen in accordance with the type of structure to which the HIU will be fitted.
C) The hydraulic connections listed in the “Description of connections” section and indicated must
be strictly observed using the means you believe most suitable and reliable for maintaining the
hydraulic seal over time.
D) Fill the system by slowly opening the shut-off valves (not supplied) and venting the HUI using
the relevant cocks.
E) If necessary, enable the domestic hot water preheat function (see instruction sheet 78202).
Power up the HUI and proceed with setting the correct DHW and heating set points.
F) Fit the cover by placing it on top, as shown in the figure below:
G) Secure the cover by inserting the two screws supplied at the points indicated in the figure
below:
Description of connections
