AIR-SEP
Pressure Maintenance with AIR-SEP
SmartControl
26
KOREX Benelux B.V.
7.4 Overflow Valve (11)
Overflow valve complete with body, nozzle and upper section
Adjustment of the pressure setting:
-
Via the pressure adjustment screw (2 and / or 2a) (pr/-)
-
With a running pressure maintenance pump ("ON") a higher
pressure of approx. +0.5 barg occurs
-
With a switched off pressure maintenance pump ("OFF")
the system pressure must fall and be equal to the pressure
maintenance (pressure maintenance = static
at least 0.5 barg)
Maintenance / Cleaning:
-
Close all valves to the heating system
-
Switch off the AIR-SEP
at switch (9)
+++AT++ Voltage is still present!!!
-
Briefly open the ball valve on the pressure maintenance pump (only Type AS-T 20/48)
-
Open the front cover (via the 4 or 3 knurled screws)
-
Fully loosen the pressure setting screw (2) (turn it clockwise)
TIP:
Make a note of the number of turns!
-
Open the union nut (4 or 10), if necessary, use the internal Allen key (from Type AS-T 100)
-
Completely pull out the overflow valve upper section or completely screw out the overflow valve body (9a). In
doing so, the pressure setting screw (2a) remains in the overflow valve body (9a).
-
Clean the dirt trap (8) and seals (5+7) and the internal spring with seal.
-
Clean the internal nozzle and the valve seat (11) with cleaning felt.
-
Reassemble in the reverse order
-
With the Allen key, tighten the union nut (4) only hand-tight
-
Retighten the pressure setting screw (2) (turn it anticlockwise)
-
Go to the menu "Settings" (see 6.4.1)
-
Open all the valves to the heating system and follow the instructions in accordance with "5.2
Commissioning"
-
Pressure adjustment is possibly required (see above)
-
Functional check
-
Close the front cover and switch on the AIR-SEP
unit at switch (9) again.
Legend:
1
Pull ring
2
Pressure setting screw, 11mm
2a Pressure setting screw, 27mm
3
Push rod
4
Union nut
5
Sealing ring (outer)
6
Supporting disc
7
Sealing ring (inner)
8
Dirt trap
9
Overflow
valve body 5/4”
9a Overflow valve body 3/4"
10
Connection for the union nut of
the flexible overflow line
11
Valve seat
1 2 3 4 5 6 7 8 9
2a
9a
10
11
