S&P CADB HE ECOWATT Series, Manual

Page: 15 / 48

15
6.5. CONNECTIONS
6.5.1. Connection with air duct
The fans are always blowing out with regard to the machine. Before making the connection of
air lines, verify existing identifi cation labels in each mouth of the heat recovery units.
Outdoor air
Aire exterior
Aria di rinnovo
Air neur
Aussenluft
Extract air
Aire de extracción
Estrazione dal locale
Air repris
Abluft
Exhaust air
Aire de expulsión
Espulsione all esterno
Air rejeté
Fortluft
Supply air
Aire de impulsión
Inmissione
Air Souffl é
Zuluft
6.5.2. Connecting the water coil piping. DC Versions
Connecting the unit to the water network
- Maximum pressure: 31.62 bar
- Maximum temperature: 150°C
• Water coils of DC versions have threaded con-
nections. Secure the coil manifold with the ap-
propiate tool when tightening the threads. This
will prevent the force from being transmitted to
the manifold, which can damage it.
• The following table indicate the size and type o thread used on water coils for DC versions:
CADB/T-HE MODEL THREAD
04, 08, 12, 16, 21, 27 and 33 1/2”
45, 60 and 100 1”
• To ensure the installation on a hand, it is essential that the installation includes the fo-
llowing elements:
- Unit intake pre-fi lter that traps suspended particulate matter.
- Bleed valves should be fi tted at each of the high points in the installation.
- Auto-fi lter valve to keep water in the hydraulic system at all times.
- Pressure to detect the lack of water pressure.
- Shut-off valves must be installed at each connection on the water line to allow the unit to
be isolated if necessary (to clean fi lters, make repairs, replace parts, etc) and avoid the
need to completely drain the water circuit.
- Anti-vibration bellows should be installed at the inlet and outlet from the unit to prevent
the transmission of vibrations that could result in damage to the heat exchanger coil due
to excess stress on the circuits.
Once the installation is performed check that the heating water fl ow is adequate.