About The Documentation; About This Document; General Safety Precautions; Meaning Of Warnings And Symbols - Daikin ERHQ011BA Installer's Reference Manual

11 Maintenance and service
11.1 Overview: Maintenance..................................................................61
11.2 Maintenance safety precautions ....................................................61
11.2.1 Opening the indoor unit ......................................................61
11.3 Checklist for yearly maintenance for indoor unit ............................61
12 Troubleshooting
12.1 Overview: Troubleshooting.............................................................62
12.2 General guidelines .........................................................................62
12.3 Solving problems based on symptoms ..........................................63
12.3.1 Symptom: The unit is NOT heating or cooling as expected63
12.3.2 Symptom: The compressor does NOT start (space heating
or domestic water heating) .................................................63
12.3.3 Symptom: The pump is making noise (cavitation)..............63
12.3.4 Symptom: The pressure relief valve opens ........................64
12.3.5 Symptom: The water pressure relief valve leaks................64
12.3.6 Symptom: The space is NOT sufficiently heated at low
outdoor temperatures .........................................................64
12.3.7 Symptom: The pressure at the tapping point is temporarily
unusual high .......................................................................64
12.3.8 Symptom: Decoration panels are pushed away due to a
swollen tank........................................................................65
12.4 Solving problems based on error codes.........................................65
12.4.1 Error codes: Overview ........................................................66
13 Glossary
14 Technical data
14.1 Dimensions and service space ......................................................69
14.1.1 Dimensions and service space: Indoor unit........................69
14.2 Components ...................................................................................70
14.2.1 Components: Indoor unit ....................................................70
14.2.2 Components: Switch box (indoor unit)................................71
14.2.3 Components: Controller (indoor unit) .................................72
14.3 Functional diagrams.......................................................................72
14.3.1 Functional diagram: Indoor unit ..........................................72
14.4 Piping diagram ...............................................................................73
14.4.1 Piping diagram: Indoor unit.................................................73
14.5 Wiring diagram ...............................................................................74
14.5.1 Wiring diagram - components: Indoor unit.........................74
14.6 Technical specifications..................................................................79
14.6.1 Technical specifications: Indoor unit ...................................79
14.7 Operation range .............................................................................80
14.7.1 Operation range: Indoor unit...............................................80
14.8 ESP curve ......................................................................................82
14.8.1 ESP curve: Indoor unit........................................................82
14.9 Performance...................................................................................84
14.10Combination table ..........................................................................87
1

About the documentation

1.1

About this document

Target audience
Authorized installers
Documentation set
This document is part of a documentation set. The complete set
consists of:
EHBH/X16
Daikin Altherma - Low Temperature Split
4P313776-1 - 2012.05
61
Document
General Safety instructions that
safety you must read before
precautions installing
Indoor unit Installation instructions
62
installation
manual
Outdoor unit Installation instructions
installation
manual
Installer Preparation of the
reference installation, technical
guide specifications, good
practices, reference
data,...
Addendum Additional info about how
book for to install optional
optional equipment
equipment
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your dealer.
68
2

General safety precautions

69
2.1 About the documentation
The original documentation is written in English. All other
languages are translations.
The precautions described in this document cover very
important topics, follow them carefully.
All activities described in the installation manual must be
performed by an authorized installer.

2.1.1 Meaning of warnings and symbols

DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING
Indicates a situation that could result in burning because of
extreme hot or cold temperatures.
WARNING
Indicates a situation that could result in death or serious
injury.
CAUTION
Indicates a situation that could result in minor or moderate
injury.
NOTICE
Indicates a situation that could result in equipment or
property damage.
INFORMATION
Indicates useful tips or additional information.
1 About the documentation
Contains... Format
Paper (in the box of the
indoor unit)
Paper (in the box of the
outdoor unit)
CD/DVD in the box of the
indoor unit)
Paper (in the box of the
indoor unit)
CD/DVD (in the box of the
indoor unit)
Installer reference guide
2