Daikin EHYKOMB33AA3 [3/108] Commissioning 69
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Daikin EHYKOMB33AA3 [3/108] Commissioning 69

Daikin EHYKOMB33AA3 [3/108] Commissioning 69
1 General safety precautions
Installer reference guide
3
CHYHBH05+08AA + EHYKOMB33A
Daikin hybrid for multi heat pump – heat pump module
4P471761-1A – 2017.10
7.12.5 Applicable materials.................................................... 42
7.12.6 Flue pipe position........................................................ 42
7.12.7 Insulation of the gas exhaust and air intake................ 43
7.12.8 Fitting a horizontal flue system ................................... 43
7.12.9 Fitting a vertical flue system........................................ 43
7.12.10 Plume management kit ............................................... 43
7.12.11 Flues in voids .............................................................. 44
7.13 Finishing the outdoor unit installation ........................................ 44
7.13.1 To finish the outdoor unit installation .......................... 44
7.13.2 To close the outdoor unit ............................................ 44
7.14 Finishing the indoor unit installation .......................................... 44
7.14.1 To close the indoor unit............................................... 44
7.15 Finishing the gas boiler installation ........................................... 44
7.15.1 To purge the gas supply ............................................. 44
7.15.2 To close the gas boiler................................................ 44
7.15.3 To install the cover plate ............................................. 45
8 Configuration 45
8.1 Indoor unit ................................................................................. 45
8.1.1 Overview: Configuration.............................................. 45
8.1.2 Basic configuration...................................................... 48
8.1.3 Advanced configuration/optimization .......................... 54
8.1.4 Menu structure: Overview user settings...................... 61
8.1.5 Menu structure: Overview installer settings ................ 62
8.2 Gas boiler .................................................................................. 63
8.2.1 Overview: Configuration.............................................. 63
8.2.2 Basic configuration...................................................... 63
9 Operation 68
9.1 Overview: Operation.................................................................. 68
9.2 Heating ...................................................................................... 68
9.3 Domestic hot water.................................................................... 68
9.3.1 Flow resistance graph for appliance domestic hot
water circuit................................................................. 68
9.4 Operation modes....................................................................... 68
10 Commissioning 69
10.1 Overview: Commissioning ......................................................... 69
10.2 Precautions when commissioning ............................................. 69
10.3 Checklist before commissioning ................................................ 69
10.4 Checklist during commissioning ................................................ 70
10.4.1 To perform a wiring error check .................................. 70
10.4.2 To check the minimum flow rate ................................. 70
10.4.3 Air purge function........................................................ 70
10.4.4 To perform a test run .................................................. 71
10.4.5 To perform an actuator test run .................................. 72
10.4.6 Underfloor heating screed dryout................................ 72
10.4.7 To perform an air purge on the gas supply ................. 73
10.4.8 To perform a test run on the gas boiler....................... 73
11 Hand-over to the user 74
12 Maintenance and service 74
12.1 Overview: Maintenance and service ......................................... 74
12.2 Maintenance safety precautions................................................ 74
12.2.1 Opening the indoor unit............................................... 74
12.3 Checklist for yearly maintenance of the outdoor unit ................ 74
12.4 Checklist for yearly maintenance of the indoor unit................... 74
12.5 To disassemble the gas boiler................................................... 75
12.6 To clean the inside of the gas boiler.......................................... 76
12.7 To assemble the gas boiler ....................................................... 77
13 Troubleshooting 77
13.1 Overview: Troubleshooting........................................................ 77
13.2 Precautions when troubleshooting ............................................ 78
13.3 Solving problems based on symptoms...................................... 78
13.3.1 Symptom: The unit is NOT heating or cooling as
expected ..................................................................... 78
13.3.2 Symptom: The compressor does NOT start (space
heating) ....................................................................... 78
13.3.3 Symptom: The system is making gurgling noises
after commissioning .................................................... 78
13.3.4 Symptom: The pump is making noise (cavitation) ....... 78
13.3.5 Symptom: The pressure relief valve opens.................. 79
13.3.6 Symptom: The water pressure relief valve leaks ......... 79
13.3.7 Symptom: The space is NOT sufficiently heated at
low outdoor temperatures ............................................ 79
13.3.8 Symptom: The pressure at the tapping point is
temporarily unusually high ........................................... 79
13.3.9 Symptom: Tank disinfection function is NOT
completed correctly (AH-error)..................................... 79
13.3.10 Symptom: Boiler abnormality detection (HJ-11 error).. 80
13.3.11 Symptom: Boiler/hydrobox combination abnormality
(UA52 error) ................................................................. 80
13.3.12 Symptom: The burner does NOT ignite ....................... 80
13.3.13 Symptom: The burner ignites noisily............................ 80
13.3.14 Symptom: The burner resonates ................................. 80
13.3.15 Symptom: No space heating by the gas boiler ............ 80
13.3.16 Symptom: The power is reduced ................................. 81
13.3.17 Symptom: Space heating does NOT reach the
temperature.................................................................. 81
13.3.18 Symptom: Hot water does NOT reach the
temperature (no tank installed) .................................... 81
13.3.19 Symptom: Hot water does NOT reach the
temperature (tank installed) ......................................... 81
13.4 Solving problems based on error codes ..................................... 81
13.4.1 Error codes: Overview ................................................. 81
14 Disposal 83
14.1 Overview: Disposal..................................................................... 83
14.2 To pump down............................................................................ 84
14.3 To start and stop forced cooling ................................................. 84
15 Technical data 84
15.1 Piping diagram: Indoor unit ........................................................ 85
15.2 Wiring diagram: Indoor unit ........................................................ 85
15.3 Wiring diagram: Gas boiler ......................................................... 89
15.4 Table 1 – Maximum refrigerant charge allowed in a room:
indoor unit................................................................................... 90
15.5 Table 2 – Minimum floor area: indoor unit .................................. 92
15.6 Table 3 – Minimum venting opening area for natural
ventilation: indoor unit ................................................................ 93
15.7 ESP curve: indoor unit................................................................ 95
15.8 Technical specifications: Gas boiler ........................................... 96
15.8.1 General ........................................................................ 96
15.8.2 Gas category and supply pressure .............................. 96
16 Glossary 100
17 Field settings table 101
1 General safety precautions
1.1 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.
▪ The installation of the system, and all activities described in the
installation manual and the installer reference guide must be
performed by an authorised installer.
1.1.1 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.

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