Daikin R32 Split Series

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7 | Unit installation

Installer reference guide

EKHWET90~120BAV3

R32 Split series – Domestic hot water tank

4P680077-1 – 2021.11

NOTICE

▪ Protect pipework from physical damage.

▪ Keep the pipework installation to a minimum.

Main Page

Table of Contents2
About this Document5
Meaning of Warnings and Symbols6
Installer Reference Guide at a Glance7
General Safety Precautions9
For the Installer9
General9
Installation Site10
Refrigerant - in Case of R410A or R3210
Water12
Electrical12
Specific Installer Safety Instructions15
About the Box20
Overview: about the Box20
Indoor Unit21
To Unpack the Indoor Unit21
To Remove the Accessories from the Indoor Unit21
About the Units and Options22
Identification22
Identification Label: Indoor Unit22
Possible Options for the Indoor Unit22
Application Guidelines23
Overview: Application Guidelines23
Setting up the Domestic Hot Water Tank23
System Layout - Standalone DHW Tank23
Selecting the Volume and Desired Temperature for the DHW Tank24
Setup and Configuration - DHW Tank25
Setting up the Power Consumption Control25
Permanent Power Limitation26
Power Limitation Process26
Unit Installation28
Preparing the Installation Site28
Installation Site Requirements of the Indoor Unit28
Special Requirements for R32 Units29
Installation Patterns31
Opening and Closing the Units36
About Opening the Units36
To Open the Indoor Unit36
To Close the Indoor Unit37
Mounting the Indoor Unit37
About Mounting the Indoor Unit37
Precautions When Mounting the Indoor Unit37
To Install the Indoor Unit37
Piping Installation39
Preparing Refrigerant Piping39
Refrigerant Piping Requirements39
Connecting Refrigerant Piping39
To Connect the Refrigerant Piping to the Indoor Unit39
Preparing Water Piping40
Water Circuit Requirements40
Connecting Water Piping42
About Connecting the Water Piping42
Precautions When Connecting the Water Piping42
To Connect the Water Piping42
To Connect the Recirculation Piping43
To Fill the Domestic Hot Water Tank43
Electrical Installation45
About Connecting the Electrical Wiring45
Precautions When Connecting the Electrical Wiring45
Guidelines When Connecting the Electrical Wiring46
About Electrical Compliance47
Connections to the Indoor Unit47
To Connect the Main Power Supply47
To Connect the Booster Heater Power Supply48
To Connect the WLAN Cartridge (Delivered as Accessory)50
Configuration51
Overview: Configuration51
To Access the most Used Commands52
To Connect the PC Cable to the Switch Box54
Configuration Wizard54
Possible Screens55
Possible Screens: Overview55
Home Screen56
Main Menu Screen57
Menu Screen58
Setpoint Screen58
Detailed Screen with Values59
Preset Values and Schedules60
Using Preset Values60
Using and Programming Schedules61
Schedule Screen: Example62
Weather-Dependent Curve65
What Is a Weather-Dependent Curve65
2-Points Curve66
Slope-Offset Curve67
Using Weather-Dependent Curves68
Settings Menu69
Malfunctioning69
Tank70
User Settings78
Information81
Installer Settings82
Commissioning87
User Profile88
Operation88
Wlan88
Menu Structure: Overview User Settings91
Menu Structure: Overview Installer Settings92
Commissioning93
Overview: Commissioning93
Precautions When Commissioning93
Checklist before Commissioning94
Checklist During Commissioning94
Operation Test Run95
Actuator Test Run95
Hand-Over to the User97
Maintenance and Service98
Maintenance Safety Precautions98
Yearly Maintenance98
Yearly Maintenance Indoor Unit: Overview98
Yearly Maintenance Indoor Unit: Instructions99
To Drain the Domestic Hot Water Tank100
Troubleshooting101
Overview: Troubleshooting101
Precautions When Troubleshooting101
Solving Problems Based on Symptoms102
Symptom: Hot Water Does NOT Reach the Desired Temperature102
Symptom: the Pressure at the Tapping Point Is Temporarily Unusually High102
Symptom: Tank Disinfection Function Is NOT Completed Correctly (AH-Error)102
Solving Problems Based on Error Codes102
To Display the Help Text in Case of a Malfunction103
Error Codes: Overview103
Technical Data107
Piping Diagram: Indoor Unit108
Wiring Diagram: Indoor Unit109

Daikin R32 Split Series - Page 30

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