Daikin RXM50A5V1B8 - User Manual

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Installer reference guide

R32 split series

RXM20A5V1B

RXM25A5V1B9

RXM35A5V1B9

RXM42A5V1B

ARXM25A5V1B

ARXM35A5V1B9

RXM50A5V1B8

ARXM50A5V1B8

RXP50N5V1B8

Main Page

Table of Contents2
About the Documentation4
About this Document4
Meaning of Warnings and Symbols5
General Safety Precautions7
For the Installer7
General7
Installation Site8
Installation Space Requirements9
Refrigerant - in Case of R410A or R3211
Electrical12
Specific Installer Safety Instructions15
Installation15
About the Box21
Outdoor Unit21
To Unpack the Outdoor Unit21
To Handle the Outdoor Unit21
To Remove the Accessories from the Outdoor Unit22
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
In this Chapter32
Preparing Refrigerant Piping32
Refrigerant Piping Requirements32
Refrigerant Piping Insulation33
Refrigerant Piping Length and Height Difference33
Connecting the Refrigerant Piping33
About Connecting the Refrigerant Piping34
Precautions When Connecting the Refrigerant Piping34
Guidelines When Connecting the Refrigerant Piping35
Pipe Bending Guidelines36
To Flare the Pipe End36
Using the Stop Valve and Service Port37
To Connect the Refrigerant Piping to the Outdoor Unit38
Checking the Refrigerant Piping39
About Checking the Refrigerant Piping39
Precautions When Checking the Refrigerant Piping39
To Check for Leaks40
To Perform Vacuum Drying40
Charging Refrigerant42
About Charging Refrigerant42
About the Refrigerant43
Precautions When Charging Refrigerant44
To Determine the Additional Refrigerant Amount44
To Determine the Complete Recharge Amount44
To Charge Additional Refrigerant44
To Check Refrigerant Piping Joints for Leaks after Charging Refrigerant45
To Fix the Fluorinated Greenhouse Gases Label45
Electrical Installation46
About Connecting the Electrical Wiring46
Precautions When Connecting the Electrical Wiring46
Guidelines When Connecting the Electrical Wiring47
Specifications of Standard Wiring Components49
To Connect the Electrical Wiring to the Outdoor Unit49
Finishing the Outdoor Unit Installation51
To Finish the Outdoor Unit Installation51
Closing the Unit51
To Close the Outdoor Unit51
Configuration52
Facility Setting52
To Set the Facility Mode52
Standby Electricity Saving Function52
About the Standby Electricity Saving Function52
To Turn on Standby Electricity Saving Function53
Commissioning54
Precautions When Commissioning54
Checklist before Commissioning54
Checklist During Commissioning55
To Perform a Test Run55
Starting up the Outdoor Unit56
Hand-Over to the User57
Maintenance and Service58
Overview: Maintenance and Service59
Maintenance Safety Precautions59
Checklist for Yearly Maintenance of the Outdoor Unit59
About the Compressor59
Troubleshooting61
Overview: Troubleshooting61
Before Troubleshooting61
Precautions When Troubleshooting61
Solving Problems Based on Symptoms61
Symptom: Indoor Units Fall, Vibrate or Make Noise61
Symptom: the Unit Is NOT Heating or Cooling as Expected61
Symptom: Water Leakage62
Symptom: Electrical Leakage62
Symptom: Unit Does NOT Function or Burn Damage62
Fault Diagnosis Using LED on Outdoor Unit PCB62
Disposal63
Overview: Disposal63
To Pump down63
To Start and Stop Forced Cooling64
To Start and Stop Forced Cooling Using the Indoor Unit ON/OFF Switch64
To Start and Stop Forced Cooling Using the Indoor Unit User Interface64
Technical Data65
Wiring Diagram65
Unified Wiring Diagram Legend65
Piping Diagram67
Piping Diagram: Outdoor Unit67
Glossary70

Brand	Daikin
Model	RXM50A5V1B8
Category	Air Conditioner
Language	English

Daikin RXM50A5V1B8 - User Manual

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