Coil Water Volume - SystemAir DUCTYS series Installations- Und Wartungshandbuch

For 4-pipe fan coil units with a hydraulic connection left side, the hot coil is located after the cold coil, in relation
to the direction of the air.However, on which a straight hydraulic connection is chosen, the hot battery is located
before the cold battery.
Valves are supplied mounted.
Unit size Version
1000 2 Pipes & 4 Pipes
1500 2 Pipes & 4 Pipes
2000 2 Pipes & 4 Pipes
2500 2 Pipes & 4 Pipes
2 Pipes
4000
4 Pipes
The use of regulation valves (supplied as an accessory or by the client) is mandatory to ensure that the appliance
operates correctly.
The installation and operating conditions require the MANDATORY fitting of a valve
ON the unit OR/AND upstream in the hydraulic circuit. This is to prevent chilled water
from circulating in the appliance when the fan is not operational (condensation issue)
or to prevent the simultaneous circulation of chilled water and hot water in a 4-pipes
exchanger.
If the water pipes are exposed to temperatures below 0 °C, take the necessary precautions (draining,
antifreeze, etc.) to avoid the coils freezing. Adding antifreeze to the circuit reduces the unit's
performance (if necessary, please contact our sales network).

7.3. COIL WATER VOLUME

Water volume (in liters)
2-pipe
Unit size
1000 0.64
1500 0.70
2000 0.80
2500 0.90
4000 1.50
Female swivel coupling Ø1/2"
Female threaded type Ø1/2''
Female threaded type Ø1/2''
Female threaded type Ø1/2''
Female swivel coupling Ø3/4''
Female swivel coupling Ø3/4''
Female swivel coupling Ø1/2''
4-pipe
0.62 0.19
0.68 0.23
0.77 0.27
0.85 0.31
1.80 0.45
9
Coil connections