Daikin Altherma EAVX-D9WG

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Table of Contents2
General Safety Precautions3
About the Documentation3
Meaning of Warnings and Symbols3
General4
Installation Site4
Refrigerant4
Brine5
Water5
Electrical5
About the Documentation6
About this Document6
Installer Reference Guide at a Glance7
Installation7
About the Box7
Overview: about the Box7
Outdoor Unit7
To Unpack the Outdoor Unit7
To Handle the Outdoor Unit7
To Remove the Accessories from the Outdoor Unit8
To Remove the Transportation Stay8
Indoor Unit8
To Unpack the Indoor Unit8
To Handle the Indoor Unit8
About the Units and Options9
Overview: about the Units and Options9
Identification9
Identification Label: Outdoor Unit9
Identification Label: Indoor Unit9
Combining Units and Options9
Possible Options for the Outdoor Unit9
Possible Options for the Indoor Unit9
Application Guidelines10
Overview: Application Guidelines10
Setting up the Space Heating/Cooling System10
Single Room11
Multiple Rooms - One LWT Zone12
Multiple Rooms - Two LWT Zones14
Setting up an Auxiliary Heat Source for Space Heating15
Setting up the Domestic Hot Water Tank16
System Layout - Integrated DHW Tank16
Selecting the Volume and Desired Temperature for the DHW Tank17
Setup and Configuration - DHW Tank17
DHW Pump for Instant Hot Water17
DHW Pump for Disinfection18
Setting up the Energy Metering18
Produced Heat18
Consumed Energy18
Normal Kwh Rate Power Supply18
Preferential Kwh Rate Power Supply19
Setting up the Power Consumption Control19
Permanent Power Limitation19
Power Limitation Activated by Digital Inputs20
Power Limitation Process20
Setting up an External Temperature Sensor21
Preparation21
Overview: Preparation21
Preparing the Installation Site21
Installation Site Requirements of the Outdoor Unit21
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates22
Installation Site Requirements of the Indoor Unit22
Preparing Water Piping23
Water Circuit Requirements23
Formula to Calculate the Expansion Vessel Pre-Pressure24
To Check the Water Volume and Flow Rate24
Changing the Pre-Pressure of the Expansion Vessel25
To Check the Water Volume: Examples25
Preparing Electrical Wiring25
About Preparing Electrical Wiring25
About Preferential Kwh Rate Power Supply26
Overview of Electrical Connections Except External Actuators26
Overview of Electrical Connections for External and Internal Actuators26
Overview: Installation27
Opening the Units27
About Opening the Units27
To Open the Outdoor Unit27
To Open the Indoor Unit27
To Open the Switch Box Cover of the Indoor Unit28
To Lower the Switch Box on the Indoor Unit28
Mounting the Outdoor Unit29
About Mounting the Outdoor Unit29
Precautions When Mounting the Outdoor Unit29
To Provide the Installation Structure29
To Install the Outdoor Unit29
To Provide Drainage29
To Fix the Fluorinated Greenhouse Gases Label30
To Prevent the Outdoor Unit from Falling over30
Mounting the Indoor Unit30
About Mounting the Indoor Unit30
Precautions When Mounting the Indoor Unit30
To Install the Indoor Unit30
To Connect the Drain Hose to the Drain30
Connecting the Water Piping31
About Connecting the Water Piping31
Precautions When Connecting the Water Piping31
To Connect the Water Piping31
To Connect the Recirculation Piping32
To Fill the Water Circuit32
To Protect the Water Circuit against Freezing32
To Fill the Domestic Hot Water Tank34
To Insulate the Water Piping34
Connecting the Electrical Wiring34
About Connecting the Electrical Wiring34
About Electrical Compliance34
Precautions When Connecting the Electrical Wiring35
Guidelines When Connecting the Electrical Wiring35
Specifications of Standard Wiring Components35
To Connect the Electrical Wiring on the Outdoor Unit35
To Connect the Electrical Wiring on the Indoor Unit36
To Connect the Main Power Supply37
To Connect the Backup Heater Power Supply37
To Connect the Shut-Off Valve38
To Connect the Electrical Meters38
To Connect the Domestic Hot Water Pump38
To Connect the Alarm Output38
To Connect the Space Cooling/Heating ON/OFF Output39
To Connect the Changeover to External Heat Source39
To Connect the Power Consumption Digital Inputs39
To Connect the Safety Thermostat (Normal Closed Contact)39
Finishing the Outdoor Unit Installation40
To Finish the Outdoor Unit Installation40
Finishing the Indoor Unit Installation40
To Close the Indoor Unit40
Configuration40
Overview: Configuration40
To Access the most Used Commands40
Configuration Wizard41
Possible Screens42
Possible Screens: Overview42
Home Screen42
Main Menu Screen42
Menu Screen43
Setpoint Screen43
Detailed Screen with Values43
Detailed Screen with Weather-Dependent Curve43
Schedule Screen: Example44
Settings Menu45
Malfunction45
Room45
Main Zone47
Additional Zone51
Space Heating/Cooling52
Tank56
User Settings59
Information60
Installer Settings61
Operation67
Menu Structure: Overview User Settings68
Menu Structure: Overview Installer Settings69
Commissioning70
Overview: Commissioning70
Precautions When Commissioning70
Checklist before Commissioning70
Checklist During Commissioning70
To Check the Minimum Flow Rate70
Air Purge Function71
To Perform an Operation Test Run71
To Perform an Actuator Test Run72
Underfloor Heating Screed Dryout72
10 Hand-Over to the User73
Maintenance and Service73
Overview: Maintenance and Service73
Maintenance Safety Precautions73
Checklist for Yearly Maintenance of the Outdoor Unit73
Checklist for Yearly Maintenance of the Indoor Unit73
To Drain the Domestic Hot Water Tank75
About Cleaning the Water Filter in Case of Trouble75
To Remove the Water Filter75
To Clean the Water Filter in Case of Trouble75
To Install the Water Filter76
12 Troubleshooting76
Overview: Troubleshooting76
Precautions When Troubleshooting76
Solving Problems Based on Symptoms76
Symptom: the Unit Is NOT Heating or Cooling as Expected76
Symptom: Hot Water Does NOT Reach the Desired Temperature77
Symptom: the Compressor Does NOT Start (Space Heating or Domestic Water Heating)77
Symptom: the System Is Making Gurgling Noises after Commissioning77
Symptom: the Pump Is Making Noise (Cavitation)77
Symptom: the Pressure Relief Valve Opens78
Symptom: the Water Pressure Relief Valve Leaks78
Symptom: the Space Is NOT Sufficiently Heated at Low Outdoor Temperatures78
Symptom: the Pressure at the Tapping Point Is Temporarily Unusually High78
Symptom: Decoration Panels Are Pushed Away Due to a Swollen Tank79
Symptom: Tank Disinfection Function Is NOT Completed Correctly (AH-Error)79
Solving Problems Based on Error Codes79
To Display the Help Text in Case of a Malfunction79
Error Codes: Overview79
13 Disposal81
Overview: Disposal81
To Pump down81
To Activate/Deactivate the Vacuum Mode Field Setting81
To Perform Vacuum Drying82
Using the Stop Valve and Service Port82
To Handle the Stop Valve82
To Open/Close the Stop Valve82
To Handle the Stem Cap83
To Handle the Service Cap83
14 Technical Data84
Service Space: Outdoor Unit84
Piping Diagram: Outdoor Unit85
Piping Diagram: Indoor Unit86
Wiring Diagram: Outdoor Unit87
Wiring Diagram: Indoor Unit89
ESP Curve: Indoor Unit92

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