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7.
. CONNECTIONS
7.
.1. PIP NG AND DUCT CONNECTIONS
7.
.1.1. CONNECTION WITH A R DUCT
The fans are always blowing out with regard to the machine.
The fans must not be positioned in a manner different to the one indicated.
7.
.1.2. CONNECTING THE WATER COIL PIPING
Connecting the unit to the water network
- Maximum pressure: 31.62 bar
- Maximum temperature: 150°C
• Water coils of DC versions have threaded connections. Secure the coil manifold with the appropiate 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-N MODEL
THREAD
5, 8 and 12
1/2”
18, 23 and 30
3/4”
45, 55 and 80
1”
• To ensure the installation on a hand, it is essential that the installation includes the following 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.
7.4.1.3. CONDENSATE DRAINAGE
The units are supplied with 2 drains (one for each circuit). For added security it has to connect two drains to the condensate dischar-
ge pipe. This connection must be made through a pipe of 22 mm of inner diameter and a fl ange for secure fi xation.
Drainage system
• To ensure the removal of draining condensate from the tray a siphon must be installed with pressure head difference in mmWG
greater than the pressure provided by the fan.
Summary of Contents for CADB-N-D
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