Daikin Altherma 3 HT

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9 | Electrical installation

Installer reference guide

130

EPRA14~18D + ETVH/X16S18+23E

Daikin Altherma 3 H HT F

4P644737-1A – 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 Unit23
To Remove the Accessories from the Outdoor Unit24
Indoor Unit25
To Unpack the Indoor Unit25
To Remove the Accessories from the Indoor Unit25
To Handle the Indoor Unit26
About the Units and Options27
Identification27
Identification Label: Outdoor Unit27
Identification Label: Indoor Unit27
Combining Units and Options28
Possible Combinations of Indoor Unit and Outdoor Unit28
Possible Options for the Outdoor Unit28
Outdoor Unit28
Possible Options for the Indoor Unit29
Application Guidelines32
Overview: Application Guidelines32
Setting up the Space Heating/Cooling System33
Single Room34
Multiple Rooms - One LWT Zone38
Multiple Rooms - Two LWT Zones43
Setting up an Auxiliary Heat Source for Space Heating47
Setting up the Domestic Hot Water Tank49
System Layout - Integrated DHW Tank49
Selecting the Volume and Desired Temperature for the DHW Tank50
Setup and Configuration - DHW Tank51
DHW Pump for Instant Hot Water52
DHW Pump for Disinfection52
Setting up the Energy Metering53
Produced Heat53
Consumed Energy54
Normal Kwh Rate Power Supply54
Preferential Kwh Rate Power Supply56
Setting up the Power Consumption Control56
Permanent Power Limitation57
Power Limitation Activated by Digital Inputs58
Power Limitation Process59
BBR16 Power Limitation60
Setting up an External Temperature Sensor60
Unit Installation62
Preparing the Installation Site62
Installation Site Requirements of the Outdoor Unit62
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates65
Installation Site Requirements of the Indoor Unit65
Opening and Closing the Units66
About Opening the Units66
To Open the Outdoor Unit66
To Remove the Transportation Stay67
To Attach the Compressor Cover Piece68
To Close the Outdoor Unit69
To Open the Indoor Unit69
To Lower the Switch Box on the Indoor Unit71
To Close the Indoor Unit72
Mounting the Outdoor Unit72
About Mounting the Outdoor Unit72
Precautions When Mounting the Outdoor Unit73
To Provide the Installation Structure73
To Install the Outdoor Unit74
To Provide Drainage75
To Install the Discharge Grille76
To Remove the Discharge Grille, and Put the Grille in Safety Position78
Mounting the Indoor Unit80
About Mounting the Indoor Unit80
Precautions When Mounting the Indoor Unit80
To Install the Indoor Unit80
To Connect the Drain Hose to the Drain81
Piping Installation82
Preparing Water Piping82
Water Circuit Requirements82
Formula to Calculate the Expansion Vessel Pre-Pressure85
To Check the Water Volume and Flow Rate85
Changing the Pre-Pressure of the Expansion Vessel87
To Check the Water Volume: Examples88
Connecting Water Piping88
About Connecting the Water Piping88
Precautions When Connecting the Water Piping89
To Connect the Water Piping89
To Connect the Recirculation Piping91
To Fill the Water Circuit92
To Protect the Water Circuit against Freezing92
To Fill the Domestic Hot Water Tank95
To Insulate the Water Piping96
Electrical Installation97
About Connecting the Electrical Wiring97
Precautions When Connecting the Electrical Wiring97
Guidelines When Connecting the Electrical Wiring98
About Electrical Compliance99
About Preferential Kwh Rate Power Supply100
Overview of Electrical Connections Except External Actuators101
Connections to the Outdoor Unit101
To Connect the Electrical Wiring to the Outdoor Unit102
To Reposition the Air Thermistor on the Outdoor Unit108
Connections to the Indoor Unit109
To Connect the Main Power Supply112
To Connect the Backup Heater Power Supply114
To Connect the Shut-Off Valve117
To Connect the Electricity Meters118
To Connect the Domestic Hot Water Pump119
To Connect the Alarm Output120
To Connect the Space Cooling/Heating ON/OFF Output121
To Connect the Changeover to External Heat Source122
To Connect the Power Consumption Digital Inputs123
To Connect the Safety Thermostat (Normally Closed Contact)124
To Connect a Smart Grid125
To Connect the WLAN Cartridge (Delivered as Accessory)129
After Connecting the Electrical Wiring to the Indoor Unit129
Configuration131
Overview: Configuration131
To Access the most Used Commands132
To Connect the PC Cable to the Switch Box134
Configuration Wizard134
Possible Screens136
Possible Screens: Overview136
Home Screen137
Main Menu Screen139
Menu Screen140
Setpoint Screen141
Detailed Screen with Values142
Schedule Screen: Example142
Weather-Dependent Curve146
What Is a Weather-Dependent Curve146
2-Points Curve147
Slope-Offset Curve148
Using Weather-Dependent Curves149
Settings Menu151
Malfunctioning151
Room152
Main Zone156
Additional Zone167
Space Heating/Cooling171
Tank180
User Settings188
Information193
Installer Settings194
Commissioning217
User Profile217
Operation218
Wlan218
Menu Structure: Overview User Settings221
Menu Structure: Overview Installer Settings222
Commissioning224
Overview: Commissioning224
Precautions When Commissioning225
Checklist before Commissioning225
Checklist During Commissioning226
Minimum Flow Rate226
Air Purge Function227
Operation Test Run228
Actuator Test Run229
Underfloor Heating Screed Dryout230
Hand-Over to the User234
Maintenance and Service235
Maintenance Safety Precautions235
Yearly Maintenance235
Yearly Maintenance Outdoor Unit: Overview235
Yearly Maintenance Outdoor Unit: Instructions236
Yearly Maintenance Indoor Unit: Overview236
Yearly Maintenance Indoor Unit: Instructions236
To Drain the Domestic Hot Water Tank239
About Cleaning the Water Filter in Case of Trouble239
To Remove the Water Filter239
To Clean the Water Filter in Case of Trouble240
To Install the Water Filter241
Troubleshooting242
Overview: Troubleshooting242
Precautions When Troubleshooting242
Solving Problems Based on Symptoms243
Symptom: the Unit Is NOT Heating or Cooling as Expected243
Symptom: Hot Water Does NOT Reach the Desired Temperature244
Symptom: the Compressor Does NOT Start (Space Heating or Domestic Water Heating)244
Symptom: the System Is Making Gurgling Noises after Commissioning244
Symptom: the Pump Is Blocked245
Symptom: the Pump Is Making Noise (Cavitation)246
Symptom: the Pressure Relief Valve Opens246
Symptom: the Water Pressure Relief Valve Leaks247
Symptom: the Space Is NOT Sufficiently Heated at Low Outdoor Temperatures247
Symptom: the Pressure at the Tapping Point Is Temporarily Unusually High248
Symptom: Tank Disinfection Function Is NOT Completed Correctly (AH-Error)248
Solving Problems Based on Error Codes249
To Display the Help Text in Case of a Malfunction249
Error Codes of the Unit249
Disposal254
To Recover Refrigerant254
To Manually Open the Electronic Expansion Valves255
Recovery Mode256
Technical Data258
Service Space: Outdoor Unit259
Piping Diagram: Outdoor Unit260
Piping Diagram: Indoor Unit261
Wiring Diagram: Outdoor Unit262
Wiring Diagram: Indoor Unit267
ESP Curve: Indoor Unit273
Glossary274
Field Settings Table275

Daikin Altherma 3 HT - Page 130

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