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Solutions / HVAC & heat pumps

Every answer your HVAC team needs, from your own manuals.

Verified answers about your heat pumps and HVAC units, with the page cited, in 35+ languages.

Used by leading HVAC manufacturers
Β·
GDPR
Β·
EU hosted
Chapter Agent
Knowledge base
What does error E17 mean on the heat pump?
E17 indicates an over temperature condition. Verify ambient temperature is below 40 degrees and airflow is unobstructed.
πŸ“„ Manual p.42
πŸ“‹ Bulletin 2024-03
Resolved in under 1 min
Trusted by HVAC and heat pump manufacturers
Solvis
Qvantum
Vaillant
Panasonic
Eplucon
The problem

The questions your experts answer over and over

20 minutes per error code
Searching PDFs and calling the factory while the customer waits.
The same call, fifty times
Senior engineers stuck on routine questions instead of the complex cases only they can solve.
Wrong info, second visit
The manual did not match the firmware on the unit. The job stops.
How Chapter helps

One assistant that knows your HVAC range

Answers by model and firmware
Matched to the exact unit, not generic heating advice.
The source on every answer
Each answer cites the manual page or service bulletin.
In the language of the job
Your teams across Europe, from one verified source.
Chapter Agent
Knowledge base
Compressor not starting after install, model HP-7K
For HP-7K on firmware 4.2, check the phase sequence and the minimum standing time of 3 minutes. The 4.2 update changed the default delay.
πŸ“„ Install guide p.18
πŸ“‹ Firmware 4.2 notes
Model & firmware matched
Available in:
NL
DE
+33 more
In action

From error code to verified fix, in under a minute

Before
A field engineer hits fault E17. They call the office, the office calls the factory. The visit ends without a fix.
With Chapter
Chapter Agent
Knowledge base
What does error E17 mean on the heat pump?
E17 indicates an over temperature condition. Verify ambient temperature is below 40 degrees and check that airflow is unobstructed.
πŸ“„ Manual p.42
πŸ“‹ Bulletin 2024-03
Fixed on the first visit
What HVAC teams say

Trusted by the teams on the front line

When a customer calls, I open Chapter while still on the line. The answer is there in seconds.

LK
Laurens Koerselman
Technical Support Lead, Eplucon

Our installers need our procedures, not generic heating advice. That is exactly what they get.

CR
Claas RΓΌhling
Tech Leader, Solvis

Everything my field team needs is now available in their own language, on the job.

MV
Marco Visser
Service Operations Manager, Vaillant
The product

The product behind it

Platform overview

One knowledge layer, three ways to use it

Your manuals become one verified source that powers answers at your desk, on your website, and in routine tasks.

Manuals
Schematics
Bulletins
Service history
↓
Verified knowledge layer
At your desk
On your website
Routine tasks
Read more about the platform β†’
Integrations

Works with your systems

Connects to the tools your HVAC data already lives in. Nothing to migrate.

chapter
SharePoint
HubSpot
SyncForce+
SAP
Salesforce
Zendesk
freshdesk
plus many more
See integrations β†’
Trust & security

Built for enterprise-grade compliance

ISO 27001
Certified
GDPR compliant
EU regulated
EU AI Act
Ready
EU hosted
Data sovereignty
FAQ

Questions HVAC teams ask

Does Chapter know our specific heat pump models?
βŒ„

Yes. Chapter is trained on your own manuals, schematics and service history, so answers are specific to your range, down to the model and firmware version.

How does it handle different firmware versions?
βŒ„

Each answer is tied to the specific firmware version in your documentation. When you upload a new bulletin or release, Chapter updates so technicians always see guidance for the version in front of them.

Which languages does it support for our installers?
βŒ„

Chapter answers in the language each installer works in. Upload your documentation once and the same verified source is available in Dutch, German, English and more, without separate translations to maintain.

How long does setup take?
βŒ„

Most teams are live within a few days. You share your manuals and service documentation, we structure them into your knowledge layer, and your team can start asking questions right away.

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