Wiring Diagram; Fault Indication; Maintenance - Honeywell NA 228 S-B Einbauanleitung

Instructions for Checking Operational Functions, Fault Finding and Maintenance
11. Checking the Cut-in and and Cut-out Signals from the
Compressor Vessel
1. The appliance must be ready to operate.
2. Checking the Input Signal to Refill
2.1 Set the lever on the setting valve 6 to the refilling position.
2.2 Slightly open the drain valve 21 so that the pressure indicated on the pressure
gauge 19 reduces.
2.3 On reaching the low level setting the backflow preventer will go to the flow position
(green no longer visible in the viewing window 20
2.4 lowly close the drain valve 21 .
2.5 When the cut-out switching level is reached the backflow preventer changes over to
the shutoff position.
NETZ
EIN/AUS
4
2 6
h
0 bar 8
Betriebsstunden Systemdruck
Fremdanschluß
- potentialfrei -
Entriegelung
zur Heizungsanlage
10
5
0 bar 15
16
serzähler Netzdruck
Nachfüllautomat Typ:NA 228
TÜV / DVGW
230V~ 50/60 Hz 30 W

12. Fault Indication

If the illuminated indicator button 18 lights up, the following faults may be present:
Filling time setting for the appliance too short to allow upper cut-off level to be reached.
In a heating system leaks are present so that the cut-out level is not reached.

13. Maintenance

Inspection: Backflow preventer, types 2 and 3 - every six months
Inspection: Check valve - once a year
Water meter: Recalibration - after six years
Carried out by:User or installer.
20 19
4
18
2 6
h
0 bar 8
Zeitrelais
Betriebsstunden Systemdruck
Entriegelung
10
5
Schnellfüllen
15
0 bar
16
5
4
Wasserzähler Netzdruck 3
2
Nachfüllen
21
24

14. Wiring diagram

6
Electrical data
25