Name: Daikin EPRA18DAV3
Brand: Daikin
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Installer reference guide

Daikin Altherma 3 H HT F

EPRA14DAV3

EPRA16DAV3

EPRA18DAV3

EPRA14DAW1

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ETVH16S18DA9W(G)

ETVH16S23DA9W(G)

ETVX16S18DA6V(G)

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ETVX16S18DA9W(G)

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Table of Contents2
General Safety Precautions6
About the Documentation6
Meaning of Warnings and Symbols6
For the Installer7
General7
Installation Site8
Refrigerant - in Case of R410A or R329
Water10
Electrical11
About the Documentation13
About this Document13
Installer Reference Guide at a Glance14
About the Box16
Overview: about the Box16
Outdoor Unit16
To Handle the Outdoor Unit16
To Unpack the Outdoor Unit18
To Remove the Accessories from the Outdoor Unit19
Indoor Unit20
To Unpack the Indoor Unit20
To Remove the Accessories from the Indoor Unit20
To Handle the Indoor Unit20
About the Units and Options21
Overview: about the Units and Options21
Identification21
Identification Label: Outdoor Unit21
Identification Label: Indoor Unit22
Combining Units and Options22
Possible Combinations of Indoor Unit and Outdoor Unit22
Possible Options for the Outdoor Unit23
Possible Options for the Indoor Unit23
Application Guidelines26
Overview: Application Guidelines26
Setting up the Space Heating/Cooling System27
Single Room28
Multiple Rooms - One LWT Zone32
Multiple Rooms - Two LWT Zones36
Setting up an Auxiliary Heat Source for Space Heating39
Setting up the Domestic Hot Water Tank42
System Layout - Integrated DHW Tank42
Selecting the Volume and Desired Temperature for the DHW Tank42
Setup and Configuration - DHW Tank44
DHW Pump for Instant Hot Water44
DHW Pump for Disinfection45
Setting up the Energy Metering45
Produced Heat46
Consumed Energy46
Normal Kwh Rate Power Supply47
Preferential Kwh Rate Power Supply48
Setting up the Power Consumption Control49
Permanent Power Limitation49
Power Limitation Activated by Digital Inputs50
Power Limitation Process51
BBR16 Power Limitation52
Setting up an External Temperature Sensor52
Unit Installation54
Preparing the Installation Site54
Installation Site Requirements of the Outdoor Unit54
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates57
Installation Site Requirements of the Indoor Unit57
Opening and Closing the Units58
About Opening the Units58
To Open the Outdoor Unit58
To Remove the Transportation Stay59
To Close the Outdoor Unit59
To Open the Indoor Unit60
To Lower the Switch Box on the Indoor Unit62
To Close the Indoor Unit63
Mounting the Outdoor Unit63
About Mounting the Outdoor Unit63
Precautions When Mounting the Outdoor Unit63
To Provide the Installation Structure63
To Install the Outdoor Unit64
To Provide Drainage65
To Install the Discharge Grille67
To Remove the Discharge Grille, and Put the Grille in Safety Position68
Mounting the Indoor Unit70
About Mounting the Indoor Unit70
Precautions When Mounting the Indoor Unit70
To Install the Indoor Unit70
To Connect the Drain Hose to the Drain71
Piping Installation73
Preparing Water Piping73
Water Circuit Requirements73
Formula to Calculate the Expansion Vessel Pre-Pressure75
To Check the Water Volume and Flow Rate75
Changing the Pre-Pressure of the Expansion Vessel78
To Check the Water Volume: Examples78
Connecting Water Piping79
About Connecting the Water Piping79
Precautions When Connecting the Water Piping79
To Connect the Water Piping79
To Connect the Recirculation Piping82
To Fill the Water Circuit82
To Protect the Water Circuit against Freezing82
To Fill the Domestic Hot Water Tank85
To Insulate the Water Piping86
Electrical Installation87
About Connecting the Electrical Wiring87
Precautions When Connecting the Electrical Wiring87
Guidelines When Connecting the Electrical Wiring88
About Electrical Compliance89
About Preferential Kwh Rate Power Supply89
Overview of Electrical Connections Except External Actuators90
Connections to the Outdoor Unit91
To Connect the Electrical Wiring to the Outdoor Unit91
To Reposition the Air Thermistor on the Outdoor Unit97
Connections to the Indoor Unit98
To Connect the Main Power Supply101
To Connect the Backup Heater Power Supply103
To Connect the Shut-Off Valve105
To Connect the Electricity Meters106
To Connect the Domestic Hot Water Pump107
To Connect the Alarm Output108
To Connect the Space Cooling/Heating ON/OFF Output109
To Connect the Changeover to External Heat Source110
To Connect the Power Consumption Digital Inputs111
To Connect the Safety Thermostat (Normally Closed Contact)112
After Connecting the Electrical Wiring to the Indoor Unit113
Configuration115
Overview: Configuration115
To Access the most Used Commands116
Configuration Wizard118
Possible Screens119
Possible Screens: Overview119
Home Screen120
Main Menu Screen123
Menu Screen124
Setpoint Screen124
Detailed Screen with Values125
Schedule Screen: Example125
Weather-Dependent Curve130
What Is a Weather-Dependent Curve130
2-Points Curve130
Slope-Offset Curve131
Using Weather-Dependent Curves133
Settings Menu135
Malfunctioning135
Room135
Main Zone139
Additional Zone149
Space Heating/Cooling155
Tank163
User Settings170
Information175
Installer Settings176
Commissioning194
Operation194
Wlan195
Menu Structure: Overview User Settings197
Menu Structure: Overview Installer Settings198
Commissioning199
Overview: Commissioning199
Precautions When Commissioning200
Checklist before Commissioning200
Checklist During Commissioning201
Minimum Flow Rate201
Air Purge Function202
Operation Test Run203
Actuator Test Run204
Underfloor Heating Screed Dryout205
Hand-Over to the User209
Maintenance and Service210
Overview: Maintenance and Service210
Maintenance Safety Precautions210
Yearly Maintenance211
Yearly Maintenance Outdoor Unit: Overview211
Yearly Maintenance Outdoor Unit: Instructions211
Yearly Maintenance Indoor Unit: Overview211
Yearly Maintenance Indoor Unit: Instructions211
To Drain the Domestic Hot Water Tank214
About Cleaning the Water Filter in Case of Trouble214
To Remove the Water Filter215
To Clean the Water Filter in Case of Trouble215
To Install the Water Filter216
Overview: Maintenance and Service216
Troubleshooting218
Overview: Troubleshooting218
Precautions When Troubleshooting218
Solving Problems Based on Symptoms219
Symptom: the Unit Is NOT Heating or Cooling as Expected219
Symptom: Hot Water Does NOT Reach the Desired Temperature220
Symptom: the Compressor Does NOT Start (Space Heating or Domestic Water Heating)220
Symptom: the System Is Making Gurgling Noises after Commissioning220
Symptom: the Pump Is Blocked221
Symptom: the Pump Is Making Noise (Cavitation)221
Symptom: the Pressure Relief Valve Opens222
Symptom: the Water Pressure Relief Valve Leaks222
Symptom: the Space Is NOT Sufficiently Heated at Low Outdoor Temperatures223
Symptom: the Pressure at the Tapping Point Is Temporarily Unusually High224
Symptom: Tank Disinfection Function Is NOT Completed Correctly (AH-Error)224
Solving Problems Based on Error Codes224
To Display the Help Text in Case of a Malfunction225
Error Codes: Overview225
Disposal230
To Recover Refrigerant230
Technical Data232
Service Space: Outdoor Unit233
Piping Diagram: Outdoor Unit234
Piping Diagram: Indoor Unit235
Wiring Diagram: Outdoor Unit236
Wiring Diagram: Indoor Unit241
Glossary247
Field Settings Table248

Brand	Daikin
Model	EPRA18DAV3
Category	Heat Pump
Language	English

Daikin EPRA18DAV3 User Manual

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