Daikin 4MXM68N2V1B9

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11 | Configuration

Installer reference guide

2MXM68+3(A)MXM+3(A)MXF+4MXM+5MXM

R32 Split series

4P600463-1C – 2020.08

4×

VHR-5N

SVH-21T-1

S15

Main Page

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 R3211
Brine12
Water13
Electrical13
Specific Installer Safety Instructions16
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 Unit29
About Mounting the Outdoor Unit29
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 Difference35
Connecting the Refrigerant Piping36
About Connecting the Refrigerant Piping36
Precautions When Connecting the Refrigerant Piping36
Guidelines When Connecting the Refrigerant Piping38
Pipe Bending Guidelines38
To Flare the Pipe End39
Connections between Outdoor and Indoor Unit Using Reducers39
Using the Stop Valve and Service Port42
To Connect the Refrigerant Piping to the Outdoor Unit43
Checking the Refrigerant Piping44
About Checking the Refrigerant Piping44
Precautions When Checking the Refrigerant Piping44
To Check for Leaks45
To Perform Vacuum Drying45
Charging Refrigerant47
About Charging Refrigerant47
About the Refrigerant48
Precautions When Charging Refrigerant49
To Determine the Additional Refrigerant Amount49
To Determine the Complete Recharge Amount49
To Charge Additional Refrigerant50
To Fix the Fluorinated Greenhouse Gases Label50
Electrical Installation51
About Connecting the Electrical Wiring51
Precautions When Connecting the Electrical Wiring51
Guidelines When Connecting the Electrical Wiring53
Specifications of Standard Wiring Components54
To Connect the Electrical Wiring to the Outdoor Unit55
Finishing the Outdoor Unit Installation57
To Finish the Outdoor Unit Installation57
To Close the Outdoor Unit57
Configuration58
About Standby Electricity Saving Function58
To Turn on Standby Electricity Saving Function58
About Priority Room Function59
To Set the Priority Room Function59
About Night Quiet Mode59
To Turn on the Night Quiet Mode59
About Heat Mode Lock60
To Turn on Heat Mode Lock60
About Cool Mode Lock60
To Turn on Cool Mode Lock60
Commissioning62
Overview: Commissioning62
Precautions When Commissioning62
Checklist before Commissioning62
Checklist During Commissioning63
Trial Operation and Testing63
About Wiring Error Check64
To Perform a Test Run65
Starting up the Outdoor Unit65
Hand-Over to the User66
Maintenance and Service67
Overview: Maintenance and Service67
Maintenance Safety Precautions67
Checklist for Yearly Maintenance of the Outdoor Unit67
About the Compressor68
Troubleshooting69
Overview: Troubleshooting69
Precautions When Troubleshooting69
Solving Problems Based on Symptoms69
Symptom: Indoor Units Fall, Vibrate or Make Noise69
Symptom: the Unit Is NOT Heating or Cooling as Expected70
Symptom: Water Leakage70
Symptom: Electrical Leakage70
Symptom: Priority Room Setting Does NOT Function70
Symptom: Unit Does NOT Function or Burn Damage70
Solving Problems Based on LED Behaviour71
Fault Diagnosis Using LED on Outdoor Unit PCB71
Disposal73
Overview: Disposal73
To Pump down73
To Start and Stop Forced Cooling74
Technical Data76
Wiring Diagram76
Unified Wiring Diagram Legend76
Piping Diagram: Outdoor Unit78
Glossary83

Daikin 4MXM68N2V1B9

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