5
Preliminary requirements for installation
Before installing the unit, prepare:
-
the delivery and return water pipes of the radiant system with two shut-off valves for
dissection of the line;
-
the condensed water drain; two separate siphons are required, each for its own drain
and to prevent air vacuum from the drain pipe;
-
the electric supply wires, the PE protection wire (ground wire) and the operational input
signals.
TYPE OF CONNECTION CHARACTERISTICS
CONDITIONS
Chilled water
Temperature 15°C;
hydraulic head 1,5 m w.c.
min. T 12 °C, max 18 °C;
Electric power
10 A
230V – 50Hz – 1ph
Condensation drain
Flow rate 15 l/h,
min slant 3%
2 siphons required
∆
h = 40 mm
Aeraulic ducts
Min diameter same as unit
nozzles
The losses of pressure inside the ducts,
by adding up the vacuum and the
delivery for each flow, should not
exceed the hydraulic head available for
the unit
Positioning
The unit must be installed indoor in horizontal position. A slanted position exceeding 1% may
cause water leaks and/or damage the internal devices.
Installation minimum distances
To properly maintain or repair it, provide enough free space around the machine according to
the dimensions given in the picture below. These areas, including the one occupied by the unit,
should be easily accessible for maintenance.
