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BWT AQA therm HFB-1717 BA - User Manual

BWT AQA therm HFB-1717 BA
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AQA therm HFB-
1717 BA
Art.-Nr./Item no. 51955 (DE)
Art.-Nr./Item no. 820425 (AT)
AQA therm HES
Art.-Nr./Item no. 51094 (DE)
Art.-Nr./Item no. 820423 (AT)
Einbau- und Bedienungsanleitung DE
Installation and operating instructions EN
Wichtige Hinweise: Um Fehler zu vermeiden, ist die Einbau- und Bedienungsanleitung stets
griffbereit aufzubewahren, vor der Ausführung von Arbeiten am Gerät vollständig durchzu-
lesen und zu beachten. Unsere Merkblätter und Druckschriften sollen nach bestem Wissen
beraten, der Inhalt ist jedoch ohne Rechtsverbindlichkeit. Im Übrigen gelten unsere allgemei-
nen Geschäftsbedingungen. Änderungen vorbehalten!
Important notice: Always keep the tting and operating instructions close at hand to avoid
any mistakes and before carrying out any work on the device you should read the tting
and operating instructions carefully and follow them. While our data sheets and brochures
should provide advice to the best of our knowledge, the content thereof is not legally
binding. In addition to this, our general terms and conditions of trade apply.
Subject to alterations!
AQA therm HWG
Art.-Nr./Item no. 820454 (AT)
bestehend aus 820425 und 820423
32312048-001
6280_EBA AQA therm HFB_HES_HWG_313660-5.indd 1 24.09.15 09:09

Table of Contents

Questions and Answers

  • M
    Margaret LloydAug 10, 2025
    How to fix minimal or no flow rate in my BWT AQA therm HFB-1717 BA Heating System?
    • N
      Nicole WhitneyAug 10, 2025
      If you're experiencing minimal or no flow rate in your BWT Heating System, there might be a few reasons: * The AQA therm HFB-1717 BA may not be mounted in the direction of the flow rate. Ensure it is correctly mounted, following the arrow direction on the housing. * The shut-off ball valve might not be fully open. Make sure to fully open it. * The pressure reducer could be set at the wrong outlet pressure. Adjust it to the required setting. * The integrated filter could be dirty. Try cleaning the filter.
  • C
    cherylrodgersAug 15, 2025
    Why is the water not hard enough in my BWT AQA therm HFB-1717 BA Heating System?
    • R
      Rhonda StaffordAug 15, 2025
      If the water isn't hard enough in your BWT Heating System, it could be due to several reasons: 1. The hardness range might be set incorrectly. Ensure you set the correct hardness range. 2. The AQA therm hardness-reducing cartridge (HRC) or desalination cartridge (SRC) might be depleted. If so, replace the cartridge with a new one. 3. Impurities might have entered the mixing inlets. Try flushing the (HRC, SRC) cartridge.
  • M
    Megan WeberAug 20, 2025
    What to do if the set outlet pressure does not remain constant in BWT AQA therm HFB-1717 BA?
    • S
      sherririveraAug 20, 2025
      If the set outlet pressure in your BWT Heating System isn't remaining constant, it could be that the nozzle or gasket valve is dirty or damaged. The suggested solution is to replace the valve core.
  • W
    William DelgadoAug 26, 2025
    Why does the drain valve open for no reason in my BWT Heating System?
    • N
      Nathan TaylorAug 26, 2025
      If the drain valve on your BWT Heating System is opening for no apparent reason (without inlet pressure fluctuations), the inlet-side backflow preventer or drain valve might be dirty. Try removing the backflow preventer core and cleaning or replacing it.
  • S
    Stephanie RowlandAug 30, 2025
    What to do if drain valve does not close in BWT AQA therm HFB-1717 BA?
    • N
      Nicole GarrettAug 31, 2025
      If the drain valve on your BWT Heating System isn't closing, it's likely that the drain valve is dirty. Remove the backflow preventer core and clean or replace it to resolve this issue.
  • S
    Stephanie ParkSep 3, 2025
    How to fix water leaking from the spring cap in BWT AQA therm HFB-1717 BA Heating System?
    • J
      John HolderSep 4, 2025
      If you notice water leaking from the spring cap of your BWT Heating System, it indicates that the diaphragm valve core is defective. You should insert a new valve core.

BWT AQA therm HFB-1717 BA Specifications

General IconGeneral
ModelAQA therm HFB-1717 BA
Heating Output17 kW
EfficiencyUp to 98%
Fuel TypeNatural gas
Warranty2 years