InfraSuite - CoolDoor
30
3.8.3 Leakage Cut Off Valve (Optional Accessory)
•
The Leakage Cut Off Valve can be closed at the same time as the ball valve when the
pipeline is leaking to avoid risk of leakage from contacting surrounding electrical
appliances.
•
The valve is usually installed in the chilled water supply pipeline on site, at the inlet of
the soft tube at the water inlet of the CoolDoor, and the customer supply pipeline is
installed under the raised floor.
•
Power wiring is performed according to the terminal wire colors, as shown in
Figure 3-
13.
The ball valve has directionality; direction of water flow is from A to AB. A is
connected to the outer piping, and AB is connected to the soft tube inlet.
(Figure 3-13: Cut Off Valve)
Leakage Shut Off Valve
Link
Flow direction (A to AB)
Refer to
Figure 3-13
Internal thread
NPT
1.GND-Black
Wire to a (GND-Black)
2.DC24V-Red
Wire to b (VCC-Red)
3.Comment-White
Wire to c (DRV-White)
•
The valve should be installed in accordance with standard piping and local HVAC
codes. If necessary, it is recommended that you install a filter at the inlet of the
CoolDoor.
•
For the location of the ball valve connector, please refer to
Figure 3-11
.
