Daikin RXM20R5V1B User Manual (English)

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Installer reference guide

R32 Split Series

English

Installer reference guide

R32 Split Series

RXM20R5V1B

RXM25R5V1B

RXM35R5V1B

ARXM25R5V1B

ARXM35R5V1B

Table of Contents2
General Safety Precautions2
About the Documentation2
Meaning of Warnings and Symbols3
For the Installer3
General3
Installation Site3
Refrigerant - in Case of R410A or R325
Water6
Electrical6
About the Documentation7
About this Document7
Installer Reference Guide at a Glance7
About the Box7
Overview: about the Box7
Outdoor Unit8
To Unpack the Outdoor Unit8
To Remove the Accessories from the Outdoor Unit8
About the Unit8
Overview: about the Units and Options8
Identification8
Identification Label: Outdoor Unit9
Preparation9
Overview: Preparation9
Preparing the Installation Site9
Installation Site Requirements of the Outdoor Unit9
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates10
Refrigerant Piping Length and Height Difference10
Preparing Refrigerant Piping11
Refrigerant Piping Requirements11
Refrigerant Piping Insulation11
Preparing Electrical Wiring11
About Preparing Electrical Wiring11
Installation11
Overview: Installation11
Opening the Units11
About Opening the Units11
To Open the Outdoor Unit12
Mounting the Outdoor Unit12
About Mounting the Outdoor Unit12
Precautions When Mounting the Outdoor Unit12
To Provide the Installation Structure12
To Install the Outdoor Unit12
To Provide Drainage12
To Prevent the Outdoor Unit from Falling over13
Connecting the Refrigerant Piping13
About Connecting the Refrigerant Piping13
Precautions When Connecting the Refrigerant Piping13
Guidelines When Connecting the Refrigerant Piping14
Pipe Bending Guidelines14
To Flare the Pipe End14
Using the Stop Valve and Service Port14
To Connect the Refrigerant Piping to the Outdoor Unit15
Checking the Refrigerant Piping15
About Checking the Refrigerant Piping15
Precautions When Checking the Refrigerant Piping15
To Check for Leaks16
To Perform Vacuum Drying16
Charging Refrigerant16
About Charging Refrigerant16
About the Refrigerant17
Precautions When Charging Refrigerant17
To Determine the Additional Refrigerant Amount17
To Determine the Complete Recharge Amount17
To Charge Additional Refrigerant17
To Fix the Fluorinated Greenhouse Gases Label17
Connecting the Electrical Wiring18
About Connecting the Electrical Wiring18
Precautions When Connecting the Electrical Wiring18
Guidelines When Connecting the Electrical Wiring18
Specifications of Standard Wiring Components19
To Connect the Electrical Wiring to the Outdoor Unit19
Finishing the Outdoor Unit Installation19
To Finish the Outdoor Unit Installation19
To Close the Outdoor Unit19
About the Compressor20
Commissioning20
Overview: Commissioning20
Precautions When Commissioning20
Checklist before Commissioning20
Checklist During Commissioning20
To Perform a Test Run20
Starting up the Outdoor Unit21
Configuration21
Facility Setting21
To Set the Facility Mode21
Hand-Over to the User21
Maintenance and Service21
Overview: Maintenance and Service21
Maintenance Safety Precautions21
Checklist for Yearly Maintenance of the Outdoor Unit21
Troubleshooting21
Precautions When Troubleshooting22
Solving Problems Based on Symptoms22
Symptom: Indoor Units Fall, Vibrate or Make Noise22
Symptom: the Unit Is NOT Heating or Cooling as Expected22
Symptom: Water Leakage22
Symptom: Electrical Leakage22
Symptom: Unit Does NOT Function or Burn Damage22
Fault Diagnosis Using LED on Outdoor Unit PCB22
12 Disposal22
Overview: Disposal22
To Start and Stop Forced Cooling23
To Start and Stop Forced Cooling Using the Indoor Unit ON/OFF Switch23
To Start and Stop Forced Cooling Using the Indoor Unit User Interface23
13 Technical Data24
Wiring Diagram24
14 Glossary25

Brand	Daikin
Model	RXM20R5V1B
Category	Air Conditioner
Language	English

Daikin RXM20R5V1B User Manual

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Daikin RXM20R5V1B Specifications

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