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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 SATK60 so that it is ideally positioned 

on the wall.

B) Use at least 6 wall anchors (not supplied) to secure the SATK60. 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 HIU using 

the relevant cocks.

E) If necessary, enable the domestic hot water preheat function (see instruction sheet 78202). 

Power up the HIU and proceed with setting the correct DHW and heating set points.

Description of connections

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