Daikin RXP20L2V1B

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4P513661-2 2017.11

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Table of Contents2
General Safety Precautions2
About the Documentation2
Meaning of Warnings and Symbols2
For the Installer3
General3
Installation Site3
Refrigerant5
Brine6
Water6
Electrical6
About the Documentation7
About this Document7
Installer Reference Guide at a Glance7
About the Box7
Overview: about the Box7
Outdoor Unit7
To Unpack the Outdoor Unit7
To Remove the Accessories from the Outdoor Unit8
About the Units and Options8
Overview: about the Units and Options8
Identification8
Identification Label: Outdoor Unit8
Preparation8
Overview: Preparation8
Preparing the Installation Site8
Installation Site Requirements of the Outdoor Unit9
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates10
Preparing Refrigerant Piping10
Refrigerant Piping Requirements10
Refrigerant Piping Length and Height Difference10
Refrigerant Piping Insulation10
Preparing Electrical Wiring10
About Preparing Electrical Wiring10
Installation11
Overview: Installation11
Opening the Units11
About Opening the Units11
To Open the Outdoor Unit11
Mounting the Outdoor Unit11
About Mounting the Outdoor Unit11
Precautions When Mounting the Outdoor Unit11
To Provide the Installation Structure11
To Install the Outdoor Unit13
To Provide Drainage13
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 Port15
To Connect the Refrigerant Piping to the Outdoor Unit15
Checking the Refrigerant Piping16
About Checking the Refrigerant Piping16
Precautions When Checking the Refrigerant Piping16
To Check for Leaks16
To Perform Vacuum Drying16
Charging Refrigerant17
About Charging Refrigerant17
About the Refrigerant17
Precautions When Charging Refrigerant17
To Determine the Additional Refrigerant Amount17
To Determine the Complete Recharge Amount18
To Charge Additional Refrigerant18
To Fix the Fluorinated Greenhouse Gases Label18
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 on the Outdoor Unit19
Finishing the Outdoor Unit Installation19
To Finish the Outdoor Unit Installation19
To Close the Outdoor Unit19
Commissioning19
Overview: Commissioning19
Precautions When Commissioning20
Checklist before Commissioning20
Checklist During Commissioning20
To Perform a Test Run20
Starting up the Outdoor Unit20
Hand-Over to the User20
Maintenance and Service20
Overview: Maintenance and Service21
Maintenance Safety Precautions21
Checklist for Yearly Maintenance of the Outdoor Unit21
Troubleshooting21
Overview: Troubleshooting21
Precautions When Troubleshooting21
Solving Problems Based on Symptoms21
Symptom: Indoor Units Fall, Vibrate or Make Noise21
Symptom: the Unit Is NOT Heating or Cooling as Expected21
Symptom: Water Leakage21
11 Disposal22
Overview: Disposal22
To Pump down22
To Start and Stop Forced Cooling22
12 Technical Data23
Wiring Diagram23
13 Glossary24

Daikin RXP20L2V1B - Page 28

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