Name: Daikin 3MXM52N2V1B7
Brand: Daikin
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Installer reference guide

R32 Split series

2MXM68N2V1B

3MXM40N2V1B9

3MXM40N2V1B8

3MXM40N2V1B7

3MXM52N2V1B9

3MXM52N2V1B8

3MXM52N2V1B7

3MXM68N2V1B9

3AMXM52N2V1B9

3AMXF52A2V1B9

3MXF52A2V1B9

3MXF68A2V1B9

4MXM68N2V1B9

4MXM80N2V1B9

5MXM90N2V1B9

Table of Contents2
About the Documentation4
About this Document4
General Safety Precautions5
About the Documentation5
Meaning of Warnings and Symbols5
For the Installer6
General6
Installation Site7
Refrigerant - in Case of R410A or R3210
Electrical12
Specific Installer Safety Instructions15
About the Box20
Overview: about the Box20
Outdoor Unit20
To Unpack the Outdoor Unit20
To Remove the Accessories from the Outdoor Unit21
About the Unit23
Overview: about the Unit23
Identification23
Identification Label: Outdoor Unit23
Unit Installation24
Preparing the Installation Site24
Installation Site Requirements of the Outdoor Unit25
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates27
Opening the Unit28
About Opening the Unit28
To Open the Outdoor Unit28
Mounting the Outdoor Unit28
About Mounting the Outdoor Unit28
Precautions When Mounting the Outdoor Unit29
To Provide the Installation Structure29
To Install the Outdoor Unit30
To Provide Drainage30
To Prevent the Outdoor Unit from Falling over31
Piping Installation32
Preparing Refrigerant Piping32
Refrigerant Piping Requirements32
Refrigerant Piping Insulation33
Refrigerant Piping Length and Height Difference34
Connecting the Refrigerant Piping35
About Connecting the Refrigerant Piping35
Precautions When Connecting the Refrigerant Piping35
Guidelines When Connecting the Refrigerant Piping36
Pipe Bending Guidelines37
To Flare the Pipe End37
Connections between Outdoor and Indoor Unit Using Reducers38
Using the Stop Valve and Service Port40
To Connect the Refrigerant Piping to the Outdoor Unit42
Checking the Refrigerant Piping42
About Checking the Refrigerant Piping42
Precautions When Checking the Refrigerant Piping43
To Check for Leaks43
To Perform Vacuum Drying44
Charging Refrigerant46
About Charging Refrigerant46
About the Refrigerant47
Precautions When Charging Refrigerant48
To Determine the Additional Refrigerant Amount48
To Determine the Complete Recharge Amount48
To Charge Additional Refrigerant49
To Fix the Fluorinated Greenhouse Gases Label49
Electrical Installation50
About Connecting the Electrical Wiring50
Precautions When Connecting the Electrical Wiring50
Guidelines When Connecting the Electrical Wiring52
Specifications of Standard Wiring Components53
To Connect the Electrical Wiring to the Outdoor Unit54
Finishing the Outdoor Unit Installation56
To Finish the Outdoor Unit Installation56
To Close the Outdoor Unit56
Configuration57
About Standby Electricity Saving Function57
To Turn on Standby Electricity Saving Function57
About Priority Room Function58
To Set the Priority Room Function58
About Night Quiet Mode58
To Turn on the Night Quiet Mode58
About Heat Mode Lock59
To Turn on Heat Mode Lock59
About Cool Mode Lock59
To Turn on Cool Mode Lock59
Commissioning61
Overview: Commissioning61
Precautions When Commissioning61
Checklist before Commissioning62
Checklist During Commissioning62
Trial Operation and Testing62
About Wiring Error Check63
To Perform a Test Run64
Starting up the Outdoor Unit64
Hand-Over to the User65
Maintenance and Service66
Overview: Maintenance and Service66
Maintenance Safety Precautions66
Checklist for Yearly Maintenance of the Outdoor Unit66
About the Compressor67
Troubleshooting68
Overview: Troubleshooting68
Precautions When Troubleshooting68
Solving Problems Based on Symptoms68
Symptom: Indoor Units Fall, Vibrate or Make Noise68
Symptom: the Unit Is NOT Heating or Cooling as Expected69
Symptom: Water Leakage69
Symptom: Electrical Leakage69
Symptom: Priority Room Setting Does NOT Function69
Symptom: Unit Does NOT Function or Burn Damage69
Solving Problems Based on LED Behaviour70
Fault Diagnosis Using LED on Outdoor Unit PCB70
Disposal72
Overview: Disposal72
To Pump down72
To Start and Stop Forced Cooling73
Technical Data75
Wiring Diagram75
Unified Wiring Diagram Legend75
Piping Diagram: Outdoor Unit77
Glossary82

Brand	Daikin
Model	3MXM52N2V1B7
Category	Heat Pump
Language	English

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