Table of contents
User reference guide
2
EWAA011~016DA + EWYA009~016DA
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P620246-1B – 2023.11
Table of contents
1 About this document 4
1.1 Meaning of warnings and symbols ................................................................................................................................ 5
2 User safety instructions 7
2.1 General ........................................................................................................................................................................... 7
2.2 Instructions for safe operation ...................................................................................................................................... 8
3 About the system 10
3.1 Components in a typical system layout ......................................................................................................................... 10
4 Quick guide 11
4.1 User permission level ..................................................................................................................................................... 11
4.2 Space heating/cooling.................................................................................................................................................... 11
5 Operation 15
5.1 User interface: Overview ............................................................................................................................................... 15
5.2 Menu structure: Overview user settings ....................................................................................................................... 17
5.3 Possible screens: Overview ............................................................................................................................................ 18
5.3.1 Home screen.................................................................................................................................................. 18
5.3.2 Main menu screen ......................................................................................................................................... 20
5.3.3 Setpoint screen .............................................................................................................................................. 21
5.3.4 Detailed screen with values........................................................................................................................... 22
5.4 Turning operation ON or OFF......................................................................................................................................... 23
5.4.1 Visual indication............................................................................................................................................. 23
5.4.2 To turn ON or OFF.......................................................................................................................................... 23
5.5 Reading out information ................................................................................................................................................ 24
5.6 Space heating/cooling control ....................................................................................................................................... 24
5.6.1 About space heating/cooling control ............................................................................................................ 24
5.6.2 Setting the space operation mode................................................................................................................ 24
5.6.3 Determining which temperature control you are using ............................................................................... 26
5.6.4 To change the desired room temperature.................................................................................................... 27
5.6.5 To change the desired leaving water temperature ...................................................................................... 28
5.7 Preset values and schedules .......................................................................................................................................... 29
5.7.1 Using preset values........................................................................................................................................ 29
5.7.2 Using and programming schedules ............................................................................................................... 29
5.7.3 Schedule screen: Example ............................................................................................................................. 32
5.7.4 Setting the energy prices............................................................................................................................... 36
5.8 Weather-dependent curve ............................................................................................................................................ 38
5.8.1 What is a weather-dependent curve?........................................................................................................... 38
5.8.2 2-points curve ................................................................................................................................................ 39
5.8.3 Slope-offset curve.......................................................................................................................................... 40
5.8.4 Using weather-dependent curves ................................................................................................................. 41
5.9 Other functionalities ...................................................................................................................................................... 43
5.9.1 To configure time and date ........................................................................................................................... 43
5.9.2 Using quiet mode........................................................................................................................................... 43
5.9.3 Using holiday mode ....................................................................................................................................... 43
5.9.4 Using WLAN ................................................................................................................................................... 44
6 Energy saving tips 47
7 Maintenance and service 48
7.1 Overview: Maintenance and service.............................................................................................................................. 48
8 Troubleshooting 50
8.1 To display the help text in case of a malfunction .......................................................................................................... 50
8.2 To check the malfunction history .................................................................................................................................. 50
8.3 Symptom: You are feeling too cold (hot) in your living room ....................................................................................... 51
8.4 Symptom: Unit failure .................................................................................................................................................... 51
8.5 Symptom: The system is making gurgling noises after commissioning........................................................................ 52
9 Relocation 53
9.1 Overview: Relocation ..................................................................................................................................................... 53
10 Disposal 54
11 Glossary 55
12 Installer settings: Tables to be filled in by installer 56
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