SATK40 & Procyl
®
4
Installation
The whole system should be thoroughly flushed to remove any
debris that may be in the supply pipework to the HIU and to
the domestic hot water indirect storage cylinder and heating
pipework in the apartment before connecting the HIU.
Fix the HIU to the wall
N.B.
: the wall anchors (not supplied) can only guarantee
effective support if inserted correctly (in accordance with good
technical practice) into walls built using solid or semi-solid
bricks. If working with walls built using perforated bricks or
blocks, mobile dividing panels or any masonry walls other than
those indicated, a preliminary static test must be carried out on
the support system.
Isolation Valves
The SATK40 is supplied with isolation valves. We recommend
that all connections are fitted with isolation valves to allow any
maintenance work to be carried out.
We would also recommend that the primary system includes a
flushing bypass, with an isolation valve, immediately upstream
of the HIU, to allow the primary system to be flushed prior to
the first operation of the unit.
Electrical Connections
Make sure that the electrical system can withstand the
maximum power consumption of the appliance, with
particular emphasis on the cross-section of the cables.
If in doubt, contact a qualified technician to thoroughly check
the electrical system.
Electrical safety of the appliance is only achieved when it is
correctly connected to an effective earthing system,
constructed as specified in current safety regulations. This is a
compulsory safety requirement.
Connection to the main supply
The device is supplied with an electric supply cable - plug not
supplied.
The device 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 a circuit breaker device.
Connection to the timeclock/thermostat
The SATK series HIU includes a connection, suitable for a time
clock/thermostat, allowing the tenant to control individual
apartment heating requirements
The connection to this device (potential-free contact) must be
made with the two-wire cable marked with the label as
specified below.
Should it be necessary to extend this cable, use one with the
same cross-section (max 1 mm²) and maximum length 30 m.
Heat Meter Installation
The HIU is designed to house a compact heat meter (installed
in return pipe) with 1” threaded connections and 130 mm long.
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
•
empty the HIU using the drain cocks provided
•
remove the spacer piece (A)
•
remove the blanking plug (B)
•
install the flow probe in the 1/4” pocket (B) provided
•
install the flow meter on the return pipe.
Please refer to the heat meter technical data sheets for further
information.
Heat Meter Installation
Room thermostat
A
B
Electrical supply:
230 V(ac) ±10% - 50 Hz
l
NB - Please install the
valves as shown
