SATK22
8
Hydraulic connections
Based on the dimensions and connection diagram on page 3.
•
Connection to the central primary heating system.
•
Connect to the apartment heating system.
•
Connect to the domestic hot water system (DHW).
Connections at the top
Heat meter installation
The HIU is designed to house a compact heat meter (with
incorporated return probe) with 1” threaded connections and
length of 130 mm.
Before carrying out any maintenance, repair or part
replacement work, proceed as follows:
•
Switch off the electric supply
•
Remove the cover
•
Close the shut-off valves
•
Drain the HIU using the drain cocks provided
•
Remove the spool piece (A)
•
Remove the cap (B)
•
Install the flow meter on the return pipe. To tighten the nuts
apply maximum tightening torque of 25 Nm, taking account
of the recommendations of the heat meter manufacturer.
•
Install the flow probe in the M10 pocket (B).
Please refer to the heat meter technical data sheets for further
information.
Electrical Installation
Connecting to the electricity supply
The HIU is supplied with an electric supply cable which is not
fitted with a plug.
The appliance should be electrically connected to a 230 V (ac)
single-phase + earth mains supply using the three-wire cable
marked with the label as specified below, observing the LIVE (L)
- NEUTRAL (N) polarities and the earth connection. This line
must be connected to an On/OFF switch.
A
B
Electric supply
NOTE:
When installing with the connections at
the bottom secure with safety screws as
shown.
Install the SATK22 as shown and using
sealing washers connect the HIU to the
valves on the first fix bracket.
