Daikin 2MXM50N2V1B9 User Manual (English)

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Installer reference guide

R32 Split series

2AMXM40M4V1B9

2AMXM50M4V1B9

2AMXF40A2V1B

2AMXF50A2V1B

2MXF40A2V1B

2MXF50A2V1B

2MXM40N2V1B9

2MXM50N2V1B9

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 Box21
Overview: about the Box21
Outdoor Unit21
To Unpack the Outdoor Unit21
To Remove the Accessories from the Outdoor Unit22
About the Unit24
Overview: about the Unit24
Identification24
Identification Label: Outdoor Unit24
Unit Installation25
Preparing the Installation Site25
Installation Site Requirements of the Outdoor Unit26
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates28
Opening the Unit29
About Opening the Unit29
To Open the Outdoor Unit29
Mounting the Outdoor Unit30
About Mounting the Outdoor Unit30
Precautions When Mounting the Outdoor Unit30
To Provide the Installation Structure30
To Install the Outdoor Unit31
To Provide Drainage31
To Prevent the Outdoor Unit from Falling over32
Piping Installation33
Preparing Refrigerant Piping33
Refrigerant Piping Requirements33
Refrigerant Piping Insulation34
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 Port39
To Connect the Refrigerant Piping to the Outdoor Unit41
Checking the Refrigerant Piping41
About Checking the Refrigerant Piping41
Precautions When Checking the Refrigerant Piping42
To Check for Leaks42
To Perform Vacuum Drying43
Charging Refrigerant45
About Charging Refrigerant45
About the Refrigerant46
Precautions When Charging Refrigerant47
To Determine the Additional Refrigerant Amount47
To Determine the Complete Recharge Amount47
To Charge Additional Refrigerant47
To Fix the Fluorinated Greenhouse Gases Label48
Electrical Installation49
About Connecting the Electrical Wiring49
Precautions When Connecting the Electrical Wiring49
Guidelines When Connecting the Electrical Wiring51
Specifications of Standard Wiring Components52
To Connect the Electrical Wiring to the Outdoor Unit52
Finishing the Outdoor Unit Installation55
To Finish the Outdoor Unit Installation55
To Close the Outdoor Unit55
Configuration56
About ECONO Mode Prohibition Setting56
To Turn on ECONO Mode Prohibition Setting56
About Night Quiet Mode57
To Turn on the Night Quiet Mode57
About Heat Mode Lock57
To Turn on Heat Mode Lock57
About Standby Electricity Saving Function58
To Turn on Standby Electricity Saving Function58
Commissioning59
Overview: Commissioning59
Precautions When Commissioning59
Checklist before Commissioning60
Checklist During Commissioning60
Trial Operation and Testing60
To Perform a Test Run61
Starting up the Outdoor Unit61
Hand-Over to the User62
Maintenance and Service63
Overview: Maintenance and Service63
Maintenance Safety Precautions63
Checklist for Yearly Maintenance of the Outdoor Unit63
About the Compressor64
Troubleshooting65
Overview: Troubleshooting65
Precautions When Troubleshooting65
Solving Problems Based on Symptoms65
Symptom: Indoor Units Fall, Vibrate or Make Noise65
Symptom: the Unit Is NOT Heating or Cooling as Expected66
Symptom: Water Leakage66
Symptom: Electrical Leakage66
Symptom: Unit Does NOT Function or Burn Damage66
Solving Problems Based on LED Behaviour66
Fault Diagnosis Using LED on Outdoor Unit PCB66
Disposal68
Overview: Disposal68
To Pump down68
To Start and Stop Forced Cooling69
To Start and Stop Forced Cooling Using the Indoor Unit ON/OFF Switch69
To Start and Stop Forced Cooling Using the Indoor Unit User Interface69
Technical Data70
Wiring Diagram70
Unified Wiring Diagram Legend70
Piping Diagram: Outdoor Unit72
Glossary74

Brand	Daikin
Model	2MXM50N2V1B9
Category	Air Conditioner
Language	English

Daikin 2MXM50N2V1B9 User Manual

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