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Daikin Manuals
Heating System
VRV IV+
Installer and user reference manual
Daikin VRV IV+ Installer And User Reference Manual
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Also See for VRV IV+
:
Service manual
(476 pages)
,
Installer and user reference manual
(168 pages)
,
Installation and operation manual
(52 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
About the Documentation
About this Document
Meaning of Warnings and Symbols
General Safety Precautions
For the Installer
General
Installation Site
Refrigerant - in Case of R410A or R32
Electrical
Specific Installer Safety Instructions
For the User
User Safety Instructions
General
Instructions for Safe Operation
About the System
System Layout
User Interface
Before Operation
Operation
Operation Range
Operating the System
About Operating the System
About Cooling, Heating, Fan Only, and Automatic Operation
About the Heating Operation
To Operate the System (WITHOUT Cool/Heat Changeover Remote Control Switch)
To Operate the System (with Cool/Heat Changeover Remote Control Switch)
Using the Dry Program
About the Dry Program
To Use the Dry Program (WITHOUT Cool/Heat Changeover Remote Control Switch)
To Use the Dry Program (with Cool/Heat Changeover Remote Control Switch)
Adjusting the Air Flow Direction
About the Air Flow Flap
Setting the Master User Interface
About Setting the Master User Interface
To Designate the Master User Interface (VRV DX and Hydrobox)
About Control Systems
Energy Saving and Optimum Operation
Available Main Operation Methods
Available Comfort Settings
Maintenance and Service
Maintenance after a Long Stop Period
Maintenance before a Long Stop Period
About the Refrigerant
After-Sales Service and Warranty
Warranty Period
Recommended Maintenance and Inspection
Recommended Maintenance and Inspection Cycles
Shortened Maintenance and Replacement Cycles
Troubleshooting
Error Codes: Overview
Symptoms that Are NOT System Malfunctions
Symptom: the System Does Not Operate
Symptom: Cool/Heat Cannot be Changed over
Symptom: Fan Operation Is Possible, but Cooling and Heating Do Not Work
Symptom: the Fan Speed Does Not Correspond to the Setting
Symptom: the Fan Direction Does Not Correspond to the Setting
Symptom: White Mist Comes out of a Unit (Indoor Unit)
Symptom: White Mist Comes out of a Unit (Indoor Unit, Outdoor Unit)
Symptom: the User Interface Reads "U4" or "U5" and Stops, but then Restarts after a few Minutes
Symptom: Noise of Air Conditioners (Indoor Unit)
Symptom: Noise of Air Conditioners (Indoor Unit, Outdoor Unit)
Symptom: Noise of Air Conditioners (Outdoor Unit)
Symptom: Dust Comes out of the Unit
Symptom: the Units Can Give off Odours
Symptom: the Outdoor Unit Fan Does Not Spin
Symptom: the Display Shows "88
Symptom: the Compressor in the Outdoor Unit Does Not Stop after a Short Heating Operation
Symptom: the Inside of an Outdoor Unit Is Warm Even When the Unit Has Stopped
Symptom: Hot Air Can be Felt When the Indoor Unit Is Stopped
Relocation
Disposal
Technical Data
Information Requirements for Eco Design
For the Installer
About the Box
About LOOP by DAIKIN
Overview: about the Box
To Unpack the Outdoor Unit
To Remove the Accessories from the Outdoor Unit
Accessory Pipes: Diameters
To Remove the Transportation Stay (Only for 14+16 HP)
To Remove the Transportation Stay (Only for 18+20 HP)
About the Units and Options
Overview: about the Units and Options
Identification Label: Outdoor Unit
About the Outdoor Unit
System Layout
Combining Units and Options
About Combining Units and Options
Possible Combinations of Indoor Units
Possible Combinations of Outdoor Units
Possible Options for the Outdoor Unit
Unit Installation
Preparing the Installation Site
Installation Site Requirements of the Outdoor Unit
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates
Securing Safety against Refrigerant Leaks
Opening the Unit
About Opening the Units
To Open the Outdoor Unit
To Open the Electrical Component Box of the Outdoor Unit
Mounting the Outdoor Unit
To Provide the Installation Structure
Piping Installation
Preparing Refrigerant Piping
Refrigerant Piping Requirements
Refrigerant Piping Insulation
To Select the Piping Size
To Select Refrigerant Branch Kits
About the Piping Length
Single Outdoor Units and Standard Multi-Outdoor-Unit Combinations >20 HP
Standard Multi-Outdoor-Unit Combinations ≤20 HP and Free Multi-Outdoor-Unit Combinations
Multiple Outdoor Units: Possible Layouts
Connecting the Refrigerant Piping
About Connecting the Refrigerant Piping
Precautions When Connecting the Refrigerant Piping
Multiple Outdoor Units: Knockout Holes
To Route the Refrigerant Piping
To Connect the Refrigerant Piping to the Outdoor Unit
To Connect the Multi Connection Piping Kit
To Connect the Refrigerant Branching Kit
To Protect against Contamination
To Braze the Pipe End
Using the Stop Valve and Service Port
To Remove the Spun Pipes
Checking the Refrigerant Piping
About Checking the Refrigerant Piping
Checking Refrigerant Piping: General Guidelines
Checking Refrigerant Piping: Setup
To Perform a Leak Test
To Perform Vacuum Drying
To Insulate the Refrigerant Piping
Charging Refrigerant
Precautions When Charging Refrigerant
About Charging Refrigerant
To Determine the Additional Refrigerant Amount
To Charge Refrigerant: Flow Chart
To Charge Refrigerant
Step 6A: to Automatically Charge Refrigerant
Step 6B: to Manually Charge Refrigerant
Error Codes When Charging Refrigerant
Checks after Charging Refrigerant
To Fix the Fluorinated Greenhouse Gases Label
Electrical Installation
About Connecting the Electrical Wiring
Precautions When Connecting the Electrical Wiring
Field Wiring: Overview
About the Electrical Wiring
Guidelines When Knocking out Knockout Holes
About Electrical Compliance
Safety Device Requirements
To Route and Fix the Transmission Wiring
To Connect the Transmission Wiring
To Finish the Transmission Wiring
To Route and Fix the Power Supply
To Connect the Power Supply
To Check the Insulation Resistance of the Compressor
Configuration
Overview: Configuration
Making Field Settings
About Making Field Settings
Field Setting Components
To Access the Field Setting Components
To Access Mode 1 or 2
To Use Mode 1
To Use Mode 2
Mode 1: Monitoring Settings
Mode 2: Field Settings
To Connect the PC Configurator to the Outdoor Unit
Energy Saving and Optimum Operation
Available Main Operation Methods
Available Comfort Settings
Example: Automatic Mode During Cooling
Example: Automatic Mode During Heating
Using the Leak Detection Function
About Automatic Leak Detection
To Manually Perform a Leak Detection
Commissioning
Overview: Commissioning
Precautions When Commissioning
Checklist before Commissioning
About the Test Run
To Perform a Test Run
Correcting after Abnormal Completion of the Test Run
Operating the Unit
Hand-Over to the User
Maintenance and Service
Maintenance Safety Precautions
To Prevent Electrical Hazards
About Service Mode Operation
To Use Vacuum Mode
To Recover Refrigerant
Troubleshooting
Solving Problems Based on Error Codes
Error Codes: Overview
Disposal
Technical Data
Service Space: Outdoor Unit
Piping Diagram: Outdoor Unit
Wiring Diagram: Outdoor Unit
Glossary
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