AIR-SEP
Pressure Maintenance with AIR-SEP
SmartControl
www.korexbenelux.com
25
7.
Component Parts
7.1
Pressure Transmitter (19)
Serves for the recording of the system pressure.
7.2
Water Gauge Glass with Level Switch (12)
A water gauge glass (12) for the monitoring of the fresh water supply.
The fill level of the water in the expansion tank can be seen in the water gauge
glass (12). The float (12b) shows the fill level at the upper ring.
At the lower end of the water gauge glass (12) there is a sleeve (12a) with a reed
switch. If the float is sitting at the bottom, the fresh water supply takes place. The
water magnetic valve (18) opens and the pump (10) switches off (dry running
protection).
The float in the water gauge glass can fall to the lower level (12b) Here the falls,
which may only take place a maximum of 5 times (Type AS-T 20/48) or 4 times
per hour (Type AS-T 100-2400) are counted by the electronics. The fresh water
magnetic valve remains closed afterwards and the electronics send out an error
message (the monitoring can be switched off, see 6.4.1 Settings).
When the resupply is completed, the water magnetic valve closes again.
After a blocked time of 5 (AS-T 20/48) or 10 seconds (from AS-T 100), the pump
(10) is released again.
After the closing of the ball valve (12c), the water gauge glass can be cleaned or
be replaced. The disassembly takes place by lifting and disengaging. This must
be done with the greatest of care so that the glass is not broken. The cable and
plug (12d) can be pulled out behind the casing.
7.3 Suction Valve (16)
The suction valve (16) behind the casing must close tightly as the pump is not
self-priming. With a defective or dirty valve, close all shut-offs to the heating
system, close the angle ball valve (17, from AS-T 100) and replace the suction
valve (16).
12
12b
12a
16
12d
12c
