Daikin LREN8A7Y1B - Installation And Operation Manual

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Installation and operation manual

CO₂ ZEAS outdoor unit and capacity up unit

English

Installation and operation manual

CO₂ ZEAS outdoor unit and capacity up unit

LREN8A7Y1B

LREN10A7Y1B

LREN12A7Y1B

LRNUN5A7Y1

Main Page

Table of Contents3
About the Documentation4
About this Document4
Specific Installer Safety Instructions4
For the User7
User Safety Instructions7
General7
Instructions for Safe Operation8
About the System10
System Layout10
Operation10
Operation Modes10
Operation Range10
Field Piping Pressure10
Maintenance and Service10
About the Refrigerant10
Recommended Maintenance and Inspection11
Troubleshooting11
Error Codes: Overview12
Relocation12
Disposal12
For the Installer12
About the Box12
Outdoor Unit12
To Transport the Pallet12
To Unpack the Outdoor Unit12
To Handle the Outdoor Unit13
To Remove the Accessories from the Outdoor Unit13
11 About the Units and Options14
About the Outdoor Unit14
Labels on Outdoor Unit14
System Layout15
Indoor Unit Constraints16
12 Unit Installation16
Preparing the Installation Site16
Installation Site Requirements of the Outdoor Unit16
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates17
Additional Installation Site Requirements for CO₂ Refrigerant17
Opening and Closing the Unit18
To Open the Outdoor Unit18
To Open the Electrical Component Box of the Outdoor Unit18
To Close the Outdoor Unit18
Mounting the Outdoor Unit19
To Provide the Installation Structure19
To Install the Outdoor Unit20
To Remove the Transportation Stay20
To Provide Drainage20
13 Piping Installation20
Preparing Refrigerant Piping20
Refrigerant Piping Requirements20
Refrigerant Piping Material21
Refrigerant Piping Length and Height Difference21
To Select the Piping Size22
To Select Refrigerant Branch Kits22
To Select Expansion Valves for Refrigeration22
Using Stop Valves and Service Ports23
To Handle the Stop Valve23
Tightening Torques23
To Handle the Service Port23
Connecting the Refrigerant Piping24
To Cut off the Spun Pipe Ends24
To Connect the Refrigerant Piping to the Outdoor Unit25
Guidelines to Connect T-Joints26
Guidelines to Install a Dryer26
Guidelines to Install a Filter27
About Safety Valves27
To Install Safety Valves27
About Changeover Valves28
Safety Valve Reference Information28
Checking the Refrigerant Piping28
Checking Refrigerant Piping: Setup29
To Perform a Strength Pressure Test and Leak Test29
To Perform Vacuum Drying29
Insulating the Refrigerant Piping29
To Insulate the Gas Stop Valve30
14 Electrical Installation30
About Electrical Compliance30
Field Wiring: Overview31
Guidelines When Knocking out Knockout Holes32
Guidelines When Connecting the Electrical Wiring32
Specifications of Standard Wiring Components32
Connections to the Outdoor Unit33
Low Voltage Wiring - Outdoor Unit33
High Voltage Wiring - Outdoor Unit34
Connections to the Capacity up Unit35
Low Voltage Wiring - Capacity up Unit35
High Voltage Wiring - Capacity up Unit36
15 Charging Refrigerant37
Precautions When Charging Refrigerant37
To Determine the Refrigerant Amount37
To Charge Refrigerant38
To Fix the Refrigerant Charge Label38
16 Configuration38
Making Field Settings38
About Making Field Settings38
To Access the Field Setting Components38
Field Setting Components39
To Access Mode 1 or 239
To Set Field Settings40
17 Commissioning40
Precautions When Commissioning40
Checklist before Commissioning40
About the Test Run41
To Perform a Test Run (7-Segment Display)41
Test Run Checks42
Correcting after Abnormal Completion of the Test Run42
Logbook42
Troubleshooting43
Solving Problems Based on Error Codes43
Error Codes: Overview43
19 Technical Data46
Piping Diagram: Outdoor Unit46
Piping Diagram: Capacity up Unit47
Wiring Diagram: Outdoor Unit48

Daikin LREN8A7Y1B - Installation And Operation Manual

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