NANO NED 4L, Инструкция

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Visual inspection and verification of the correct operation
1. Inspect the condensate drain for external damages and leaks.
2. Check the operating state of the condensate drain by means of the LED displays on the control
panel. See section Control panel.
3. Push the TEST button in order to verify the operating status of the discharge and the correct
operation of the valve. In the event of faults, see section Problem solving.
Cleaning and/or substitution of the integrated filter
1. Unscrew the cap.
2. Clean the filter or, if necessary, replace it.
3. First, place the cleaned filter back in its seat on the cap.
4. Screw in the lockable cap with the filter paying attention to not damage the plastic threading of
the valve body.
Replacement of parts subject to wear and tear and cleaning the condensate drain
1. Open the condensate drain, unscrewing the 4 M6x25 screws (12) as well as the M3x10 screws
(13) and remove the valve assembly (11).
2. Unscrew the filter cap (04) and extract the integrated filter.
3. Remove the O-Ring gasket of the valve assembly (07), the O-Ring gasket of the filter cap, the
solenoid valve spring (08), the solenoid valve pilot (09) and the diaphragm with the diaphragm
guide (10).
4. Clean the internal housing of the valve assembly and the aluminium tank.
5. If necessary, clean the level sensor rod and its float, however, paying particular attention to not
damage it. Do not bend it and do not use it as a lever. It contains electronic material.
Mechanical stresses, including moderate ones, can give rise to irreparable malfunctions.
When removing the floater to clean it and its plastic rod, be careful not to reverse the floater.
The magnet side and O-ring have to face the person who is applying the kit.
6. Insert the new O-ring of the filter cap, place the new filter on the cap and close on the valve
assembly paying attention to correctly screw it.
7. Insert the new valve assembly O-Ring.
8. Insert the valve components in the following order: spring and pilot in its spool, first insert the
spring (insert the side without plastic of the pilot inside the spring) and lastly the diaphragm with
its plastic guide. Ensure that diaphragm is correctly positioned.
9. Therefore, screw the valve assembly onto the condensate drain, tightening the 8 screws
present with the following tightening torque values:
NED 4L: M3 Torx T10 = 0.5 Nm +0.2/-0.1 Nm, M6 Torx T30 = 6.5 Nm +2/-1 Nm
NED 6LC - NED 350L:M3 = 0.4 Nm ±15%, M6 = 8 Nm +2/-1 Nm
10. Replace the plastic ring (15) with the straight flow regulator (14).
11. The container chamber of the electronic board is sealed with a sealing gasket and must not be
opened. All of the required connections can be accessed from the outside by electrical
connectors.
Instruction book
2920 7213 30 33