Daikin Altherma 3 H HT

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9 | Electrical installation

Installer reference guide

122

EPRA14~18D + ETVZ16S18+23E

Daikin Altherma 3 H HT F

4P644739-1A – 2022.03

Without low voltage cables With low voltage cables

Main Page

Table of Contents2
About this Document6
Meaning of Warnings and Symbols7
Installer Reference Guide at a Glance8
General Safety Precautions10
For the Installer10
General10
Installation Site11
Refrigerant - in Case of R410A or R3211
Water13
Electrical13
Specific Installer Safety Instructions16
About the Box22
Outdoor Unit22
To Handle the Outdoor Unit22
To Unpack the Outdoor Unit24
To Remove the Accessories from the Outdoor Unit25
Indoor Unit26
To Unpack the Indoor Unit26
To Remove the Accessories from the Indoor Unit26
To Handle the Indoor Unit26
About the Units and Options28
Identification28
Identification Label: Outdoor Unit28
Identification Label: Indoor Unit29
Combining Units and Options29
Possible Combinations of Indoor Unit and Outdoor Unit29
Possible Options for the Outdoor Unit29
Possible Options for the Indoor Unit30
Application Guidelines33
Overview: Application Guidelines33
Setting up the Space Heating/Cooling System34
Multiple Rooms - Two LWT Zones35
Setting up an Auxiliary Heat Source for Space Heating37
Setting up the Domestic Hot Water Tank40
System Layout - Integrated DHW Tank40
Selecting the Volume and Desired Temperature for the DHW Tank40
Setup and Configuration - DHW Tank42
DHW Pump for Instant Hot Water42
DHW Pump for Disinfection43
Setting up the Energy Metering43
Produced Heat44
Consumed Energy44
Normal Kwh Rate Power Supply45
Preferential Kwh Rate Power Supply46
Setting up the Power Consumption Control47
Permanent Power Limitation48
Power Limitation Activated by Digital Inputs49
Power Limitation Process50
BBR16 Power Limitation50
Setting up an External Temperature Sensor51
Unit Installation53
Preparing the Installation Site53
Installation Site Requirements of the Outdoor Unit54
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates56
Installation Site Requirements of the Indoor Unit56
Opening and Closing the Units57
About Opening the Units57
To Open the Outdoor Unit58
To Remove the Transportation Stay58
To Attach the Compressor Cover Piece59
To Close the Outdoor Unit60
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 Unit64
To Provide the Installation Structure64
To Install the Outdoor Unit65
To Provide Drainage66
To Install the Discharge Grille67
To Remove the Discharge Grille, and Put the Grille in Safety Position69
Mounting the Indoor Unit71
About Mounting the Indoor Unit71
Precautions When Mounting the Indoor Unit71
To Install the Indoor Unit71
To Connect the Drain Hose to the Drain72
Piping Installation73
Preparing Water Piping73
Water Circuit Requirements73
Formula to Calculate the Expansion Vessel Pre-Pressure76
To Check the Water Volume and Flow Rate76
Changing the Pre-Pressure of the Expansion Vessel79
To Check the Water Volume: Examples79
Connecting Water Piping80
About Connecting the Water Piping80
Precautions When Connecting the Water Piping80
To Connect the Water Piping80
To Connect the Recirculation Piping83
To Fill the Water Circuit84
To Protect the Water Circuit against Freezing84
To Fill the Domestic Hot Water Tank87
To Insulate the Water Piping88
Electrical Installation89
About Connecting the Electrical Wiring89
Precautions When Connecting the Electrical Wiring89
Guidelines When Connecting the Electrical Wiring90
About Electrical Compliance92
About Preferential Kwh Rate Power Supply92
Overview of Electrical Connections Except External Actuators93
Connections to the Outdoor Unit93
To Connect the Electrical Wiring to the Outdoor Unit94
To Reposition the Air Thermistor on the Outdoor Unit100
Connections to the Indoor Unit101
To Connect the Main Power Supply103
To Connect the Backup Heater Power Supply105
To Connect the Shut-Off Valve108
To Connect the Electricity Meters109
To Connect the Domestic Hot Water Pump110
To Connect the Alarm Output111
To Connect the Space Cooling/Heating ON/OFF Output112
To Connect the Changeover to External Heat Source113
To Connect the Power Consumption Digital Inputs114
To Connect the Safety Thermostat (Normally Closed Contact)115
To Connect a Smart Grid117
To Connect the WLAN Cartridge (Delivered as Accessory)121
After Connecting the Electrical Wiring to the Indoor Unit121
Configuration123
Overview: Configuration123
To Access the most Used Commands124
To Connect the PC Cable to the Switch Box126
Configuration Wizard126
Possible Screens128
Possible Screens: Overview128
Home Screen129
Main Menu Screen131
Menu Screen132
Epra14~18D + Etvz16S18+23E132
Setpoint Screen133
Detailed Screen with Values134
Schedule Screen: Example134
Weather-Dependent Curve138
What Is a Weather-Dependent Curve138
2-Points Curve139
Slope-Offset Curve140
Using Weather-Dependent Curves141
Settings Menu143
Malfunctioning143
Room144
Main Zone148
Additional Zone159
Space Heating/Cooling164
Tank173
User Settings181
Information186
Installer Settings187
Commissioning209
User Profile209
Operation209
Wlan210
Menu Structure: Overview User Settings213
Menu Structure: Overview Installer Settings214
Commissioning215
Overview: Commissioning215
Precautions When Commissioning216
Checklist before Commissioning216
Checklist During Commissioning217
Minimum Flow Rate217
Air Purge Function218
Operation Test Run221
Actuator Test Run222
Underfloor Heating Screed Dryout223
Hand-Over to the User227
Maintenance and Service228
Maintenance Safety Precautions228
Yearly Maintenance228
Yearly Maintenance Outdoor Unit: Overview228
Yearly Maintenance Outdoor Unit: Instructions229
Yearly Maintenance Indoor Unit: Overview229
Yearly Maintenance Indoor Unit: Instructions229
To Drain the Domestic Hot Water Tank232
About Cleaning the Water Filter in Case of Trouble232
To Remove the Water Filter233
To Clean the Water Filter in Case of Trouble233
To Install the Water Filter234
Troubleshooting236
Overview: Troubleshooting236
Precautions When Troubleshooting236
Solving Problems Based on Symptoms237
Symptom: the Unit Is NOT Heating or Cooling as Expected237
Symptom: Hot Water Does NOT Reach the Desired Temperature238
Symptom: the Compressor Does NOT Start (Space Heating or Domestic Water Heating)238
Symptom: the System Is Making Gurgling Noises after Commissioning239
Symptom: the Pump Is Blocked239
Symptom: the Pump Is Making Noise (Cavitation)240
Symptom: the Pressure Relief Valve Opens240
Symptom: the Water Pressure Relief Valve Leaks241
Symptom: the Space Is NOT Sufficiently Heated at Low Outdoor Temperatures241
Symptom: the Pressure at the Tapping Point Is Temporarily Unusually High242
Symptom: Tank Disinfection Function Is NOT Completed Correctly (AH-Error)242
Solving Problems Based on Error Codes243
To Display the Help Text in Case of a Malfunction243
Error Codes of the Unit243
Disposal248
To Recover Refrigerant248
To Manually Open the Electronic Expansion Valves249
Recovery Mode250
Technical Data252
Service Space: Outdoor Unit253
Piping Diagram: Outdoor Unit254
Piping Diagram: Indoor Unit255
Wiring Diagram: Outdoor Unit256
Wiring Diagram: Indoor Unit261
ESP Curve: Indoor Unit267
Glossary268
Field Settings Table269

Daikin Altherma 3 H HT - Page 122

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