Honeywell NK298S Installation Instructions Manual Download Page 9

MU1H-1229GE23 R0905

9

Honeywell GmbH

GB

3. Slowly open ball valve on outlet.

8.2 Maintenance
8.2.1 Backflow preventer

Cartridge insert (fig. 3)

1. Close ball valve on inlet and outlet.
2. Remove closing caps.

Open and close ball valves.
Backflow preventer is decompressed.

3. Unscrew cover cartridge insert.
4. Take out cartridge insert.
5. Remove filter strainer from cartridge insert.
6. Replace cartridge insert.

7. Reassemble in reverse order.
8. Check function (

 chapter 8.1.1).

Non return valve (fig. 4)

1. Close ball valve on inlet and outlet.
2. Remove closing caps.

Open and close ball valves.
Backflow preventer is decompressed.

3. Unscrew cover of non return valve.
4. Replace non return valve.

5. Reassemble in reverse order.
6. Check function (

 chapter 8.1.1).

8.2.2 Pressure reducing valve (fig. 5)

1. Close ball valve on inlet.
2. Slacken tension in compression spring.

Turn slotted screw to the left (-). 

3. Release pressure on outlet side (e.g. through water 

tap).

4. Close ball valve on outlet.
5. Unscrew filter bowl.

Use double ring spanner ZR06K (

 Accessories).

6. Remove slip ring.
7. Remove valve insert with a pair of pliers.
8. Check sealing ring, edge of nozzle and slotted ring 

are in good condition, and if necessary replace the 
entire valve insert.

9. Reassemble in reverse order.
10. Press in diaphragm with finger before inserting slip 

ring.

11. Set outlet pressure (

 chapter 7.2.1)

8.3 Cleaning

8.3.1 Backflow preventer (fig. 6)

Cartridge insert and strainer can be cleaned when nec-
essary.
1. Close ball valve on inlet and outlet.
2. Remove closing caps.

Open and close ball valves.
Backflow preventer is decompressed.

3. Unscrew cover cartridge insert.
4. Take out cartridge insert.
5. Remove filter strainer from cartridge insert.
6. Clean cartridge insert and filter strainer.

7. Reassemble in reverse order.
8. Check function (

 chapter 8.1.1).

8.3.2 Pressure reducing valve (fig. 7)

Filter bowl and filter can be cleaned when necessary.
1. Close ball valve on inlet.
2. Release pressure on outlet side (e.g. through water 

tap).

3. Close ball valve on outlet.
4. Unscrew filter bowl.

Use double ring spanner ZR06K (

 Accessories).

5. Remove filter, clean and place back in position.
6. Check O-ring for damage.
7. Screw filter bowl in place.
8. Slowly open ball valves on inlet and outlet.

CAUTION!
If pressure rises slowly 

 Maintenance!

i

Frequency: once annually (depending on local 
operating conditions)
To be carried out by an installation company

WARNING!
Do not dismantle cartridge insert in individual 
parts!

WARNING!
Spring is in tensioned!
Unintentionally derailing of the interior can 
result in injuries!

i

Frequency: every 1-3 years (depending on local 
operating conditions)
To be carried out by a qualified service provider 

i

To be carried out by a service provider 
To be carried out by the operator
CAUTION!
To clean parts made of synthetic material do not 
use detergents containing alcohol or solvents!
Detergents must not be allowed to enter the 
environment or the sewerage system!

WARNING!
Do not dismantle cartridge insert in individual 
parts!

OBJ_BUCH-20-001.book  Seite 9  Donnerstag, 15. September 2005  12:53 12

Summary of Contents for NK298S

Page 1: ...EB NK298S Rev C NK298S Einbauanleitung Installation instructions T D V G N Nachfüllkombination Refilling Combination OBJ_BUCH 20 001 book Seite 1 Donnerstag 15 September 2005 12 53 12 ...

Page 2: ...et Der Druckminderer setzt den eingangsseitigen Druck Vordruck auf den gewünschten Druck auf der Aus gangsseite Hinterdruck herab Der Druckminderer arbeitet nach dem Kraftvergleichs prinzip Der Membrankraft wirkt die Federkraft des Re gelventils entgegen Sinkt infolge einer Wasserentnahme der Ausgangsdruck Hinterdruck und damit die Membrankraft so öffnet die nun größere Federkraft das Ventil Der A...

Page 3: ...ten z B durch Was serzapfen 4 Absperrkugelhahn ausgangsseitig schließen 5 Absperrkugelhahn eingangsseitig langsam öffnen 6 Hinterdruck einstellen Schlitzschraube drehen bis Manometer ge wünschten Wert anzeigt 7 Absperrkugelhahn ausgangsseitig langsam öffnen 8 Nachfüllkombination ist betriebsbereit 8 Instandhaltung Entsprechend DIN EN 1717 muss eine regelmäßige Wartung durchgeführt werden 8 1 Inspe...

Page 4: ...itel 7 2 1 8 3 Reinigung 8 3 1 Systemtrenner Abb 6 Bei Bedarf können der Kartuscheneinsatz und der Schmutzfänger gereinigt werden 1 Absperrkugelhähne ein und ausgangsseitig schließen 2 Verschlusskappen entfernen Kugelhähne öffnen und schließen Systemtrenner wird druckentlastet 3 Abdeckung Kartuscheneinsatz abschrauben 4 Kartuscheneinsatz herausnehmen 5 Sieb Schmutzfänger von Kartuscheneinsatz entf...

Page 5: ...instellen Kapitel 7 2 1 Siebeinsatz Druckminderer ver schmutzt Siebeinsatz reinigen oder ersetzen Kapitel 8 3 2 integrierter Schmutzfänger ver schmutzt Sieb Schmutzfänger reinigen Kapitel 8 3 1 oder ggf Kartu scheneinsatz ersetzen Kapitel 8 2 1 Ablassventil öffnet ohne Grund Eingangsseitiger Rückflussverhinde rer oder Ablassventil verschmutzt Kartuscheneinsatz reinigen Kapitel 8 3 1 oder ggf erset...

Page 6: ... 2A i O Ringsatz 10 Stück 0901246 j Siebtasse mit O Ring SK06T 1 2 k Absperrkugelhahn 1 2 2192900 l Manometer 0 4 bar M07M A4 12 Zubehör TK295 Prüfset elektronisches Druckmessgerät mit Digital anzeige Batterie betrieben Mit Koffer und Zubehör ideal zur Inspektion und Wartung der Systemtrenner BA TKA295 Prüfset analoges Druckmessgerät mit Differenz druckanzeige Mit Koffer und Zubehör ideal zur Insp...

Page 7: ...ion pressure to the level of the desired pressure on the outlet side outlet pressure in individual cases The pressure reducing valve functions on a force equalisation principle The force of a diaphragm oper ates against the spring force of the regulating valve If the outlet pressure and therefore diaphragm force fall because water is drawn then the greater force of the spring causes the valve to o...

Page 8: ...Close ball valve on inlet 2 Slacken tension in compression spring Turn slotted screw to the left 3 Release pressure on outlet side e g through water tap 4 Close ball valve on outlet 5 Slowly open ball valve on inlet 6 Setting outlet pressure Turn slotten screw until the manometer shows the desired value 7 Slowly open ball valve on outlet 8 Refilling combination is ready for use 8 Maintenance In ac...

Page 9: ...can be cleaned when nec essary 1 Close ball valve on inlet and outlet 2 Remove closing caps Open and close ball valves Backflow preventer is decompressed 3 Unscrew cover cartridge insert 4 Take out cartridge insert 5 Remove filter strainer from cartridge insert 6 Clean cartridge insert and filter strainer 7 Reassemble in reverse order 8 Check function chapter 8 1 1 8 3 2 Pressure reducing valve fi...

Page 10: ...t chapter 8 3 2 integrated strainer is contaminated Clean filter strainer chapter 8 3 1 or replace cartridge insert chapter 8 2 1 Discharge valve opens without rea son Non return valve upstream or dis charge valve are contaminated Clean cartridge insert chapter 8 3 1 or replace chapter 8 2 1 Non return valve upstream are faulty Replace cartridge insert chapter 8 2 1 Discharge valve does not close ...

Page 11: ...ces 0901246 j Filter bowl with O ring SK06T 1 2 k Ball valve 1 2 2192900 l Manometer 0 4 bar M07M A4 12 Accessories TK295 Test kit Electronic pressure measuring device with digital indicator runs by a battery With case and accessories ideal for inspection and maintenance of backflow preventer type BA TKA295 Test kit Analogue pressure measuring device with differential pressure display With case an...

Page 12: ...ywell com Manufactured for and on behalf of the Environment and Combustion Controls Division of Honeywell Technologies Sàrl Ecublens Route du Bois 37 Switzerland by its Authorised Representative Ho neywell GmbH MU1H 1229GE23 R0905 Subject to change without notice 2005 Honeywell GmbH OBJ_BUCH 20 001 book Seite 12 Donnerstag 15 September 2005 12 53 12 ...

Page 13: ...sorgung 5 10 Störung Fehlersuche 5 11 Ersatzteile 6 12 Zubehör 6 1 Safety guidelines 7 2 Functional description 7 2 1 Generally 7 2 2 Construction type 7 3 Application 7 4 Technical data 7 5 Scope of delivery 7 6 Assembly 8 6 1 Installation 8 6 2 Assembly instructions fig 1 8 7 Commissioning 8 7 1 Backflow preventer fig 2 8 7 2 Pressure reducing valve fig 2 8 8 Maintenance 8 8 1 Inspection 8 8 2 M...

Page 14: ...E23 R0905 1 0 2 4 3 bar 500 100 T D V G N 1 1 1 2 2 2 T D V G N 2 T D V G N 6 2 2 2 3 4 5 6 2 2 2 3 4 7 6 2 5 3 4 bar 6 8 10 4 2 0 5 6 4 1 2 6 3 4 5 7 2 2 2 5 OBJ_BUCH 20 001 book Seite 14 Donnerstag 15 September 2005 12 53 12 ...

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