Daikin EWAQ004BAVP, Installer'S Reference Manual, Page: 3 / 92

1 General safety precautions
Installer reference guide
3
EWAQ+005BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P492900-1 – 2017.06
7.8.14 To connect the electrical meters ................................. 42
7.8.15 To connect the power consumption digital inputs ....... 42
7.8.16 To connect the alarm output ....................................... 43
7.8.17 To connect the space cooling/heating ON/OFF
output .......................................................................... 43
7.8.18 To connect the changeover to external heat source... 43
7.8.19 To connect the electrical wiring on the backup heater 43
7.8.20 To connect the backup heater power supply .............. 44
7.8.21 To connect the backup heater kit to the control box ... 45
7.8.22 To connect the valve kit .............................................. 45
7.9 Finishing the outdoor unit installation ........................................ 46
7.9.1 To close the outdoor unit ............................................ 46
7.10 Finishing the control box installation ......................................... 46
7.10.1 To close the control box.............................................. 46
7.11 Finishing the option box installation .......................................... 46
7.11.1 To close the option box............................................... 46
7.12 Finishing the backup heater installation .................................... 46
7.12.1 To close the backup heater......................................... 46
8 Configuration 46
8.1 Overview: Configuration ............................................................ 46
8.1.1 To connect the PC cable to the switch box................. 47
8.1.2 To access the most used commands ......................... 47
8.1.3 To copy the system settings from the first to the
second user interface.................................................. 48
8.1.4 To copy the language set from the first to the second
user interface .............................................................. 48
8.1.5 Quick wizard: Set the system layout after first power
ON............................................................................... 48
8.2 Basic configuration .................................................................... 49
8.2.1 Quick wizard: Language / time and date..................... 49
8.2.2 Quick wizard: Standard............................................... 49
8.2.3 Quick wizard: Options ................................................. 50
8.2.4 Quick wizard: Capacities (energy metering) ............... 52
8.2.5 Space heating/cooling control..................................... 52
8.2.6 Contact/helpdesk number ........................................... 54
8.3 Advanced configuration/optimization......................................... 54
8.3.1 Space heating/cooling operation: advanced ............... 54
8.3.2 Heat source settings ................................................... 58
8.3.3 System settings........................................................... 59
8.4 Menu structure: Overview user settings .................................... 63
8.5 Menu structure: Overview installer settings............................... 65
9 Commissioning 66
9.1 Overview: Commissioning ......................................................... 66
9.2 Precautions when commissioning ............................................. 66
9.3 Checklist before commissioning ................................................ 66
9.4 Checklist during commissioning ................................................ 66
9.4.1 To check the minimum flow rate ................................. 67
9.4.2 Air purge function........................................................ 67
9.4.3 To perform a test run .................................................. 68
9.4.4 To perform an actuator test run .................................. 68
9.4.5 Underfloor heating screed dryout................................ 68
10 Hand-over to the user 70
10.1 About locking and unlocking...................................................... 70
Possible function locks .............................................................. 70
To check if locking is active ....................................................... 70
To activate or deactivate a function lock ................................... 70
To activate or deactivate button lock......................................... 70
11 Maintenance and service 70
11.1 Overview: Maintenance and service ......................................... 70
11.2 Maintenance safety precautions................................................ 70
11.2.1 Opening the outdoor unit ............................................ 70
11.2.2 Opening the control box.............................................. 70
11.2.3 Opening the option box............................................... 70
11.2.4 Opening the backup heater......................................... 70
11.3 Checklist for yearly maintenance of the outdoor unit ................ 70
12 Troubleshooting 71
12.1 Overview: Troubleshooting......................................................... 71
12.2 Precautions when troubleshooting ............................................. 71
12.3 Solving problems based on symptoms....................................... 71
12.3.1 Symptom: The unit is NOT heating or cooling as
expected ...................................................................... 71
12.3.2 Symptom: The compressor does NOT start ................ 72
12.3.3 Symptom: The pump is making noise (cavitation) ....... 72
12.3.4 Symptom: The pressure relief valve opens.................. 73
12.3.5 Symptom: The water pressure relief valve leaks ......... 73
12.3.6 Symptom: The space is NOT sufficiently heated at
low outdoor temperatures ............................................ 73
12.3.7 Symptom: The energy metering (produced heat) is
NOT working correctly ................................................. 73
12.4 Solving problems based on error codes ..................................... 73
12.4.1 Error codes: Overview ................................................. 73
13 Disposal 76
13.1 Overview: Disposal..................................................................... 76
13.2 To pump down............................................................................ 76
14 Technical data 77
14.1 Piping diagram: Outdoor unit...................................................... 77
14.2 Wiring diagram: Outdoor unit ..................................................... 78
14.3 Valve kit necessity ...................................................................... 81
14.4 ESP curve: Outdoor unit............................................................. 83
15 Glossary 84
16 Field settings table 85
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 authorized 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.
DANGER: RISK OF BURNING
Indicates a situation that could result in burning because of
extreme hot or cold temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
WARNING
Indicates a situation that could result in death or serious
injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate
injury.