Daikin VRV 5 Series - User Manual

Questions and Answers

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Mary FullerJul 29, 2025
Why is my Daikin VRV 5 not cooling or heating enough?
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  jamesclarkeJul 29, 2025
  There could be several reasons why your Daikin Heating System isn't providing sufficient cooling or heating: * Check for any obstructions blocking the air inlet or outlet of either the outdoor or indoor unit. Remove any obstacles to ensure free airflow. * Make sure the air filter is clean. * Verify that the temperature setting is correct. * Adjust the fan speed setting on the user interface. * Ensure all doors and windows are closed to prevent drafts. * Consider if there are too many people in the room or excessive heat sources. * Block direct sunlight using curtains or blinds. * Confirm the air flow angle is properly adjusted.
R
Rachel GreenAug 8, 2025
What to do if my Daikin VRV 5 Heating System doesn't operate at all?
- K
  kennethalexanderAug 8, 2025
  If your Daikin Heating System isn't operating, there are a couple of things you can check: 1. First, verify that there is no power failure and wait for the power to be restored. The system should automatically restart after power is restored. 2. Next, check if a fuse has blown or a breaker has tripped. If necessary, replace the fuse or reset the breaker.
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Mr. Chase Lin DVMAug 17, 2025
What to do if my Daikin VRV 5 Heating System goes into fan only operation and then stops?
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  Michael HuntAug 17, 2025
  If your Daikin Heating System enters fan-only mode and then stops when attempting to heat or cool, check the following: * Ensure that neither the air inlet nor the outlet of the outdoor or indoor unit is blocked by any obstacles. Clear any obstructions to allow for unrestricted airflow. * Verify that the user interface display shows on the home screen. Refer to the installation and operation manual delivered with the indoor unit for instructions.

Summary

Specific Installer Safety Instructions

DANGER: Risk of Burning;Scalding

Highlights the danger of burns or scalds when handling the unit.

DANGER: Risk of Electrocution

Warns about the risk of electric shock when servicing or handling the unit.

Connecting the Refrigerant Piping

Provides instructions and warnings related to connecting refrigerant piping.

Electrical Installation

Details safety precautions and guidelines for electrical wiring and connections.

Commissioning Safety

Provides cautions regarding the commissioning process to prevent injury.

Troubleshooting Safety

Offers safety advice for troubleshooting operations, emphasizing caution.

R32 Refrigerant Safety

Details safety precautions specific to R32 refrigerant, including flammability warnings.

User Safety Instructions

General Safety

Preventing Electrical Shocks or Fire

Lists safety precautions to avoid electrical shocks or fires when using the unit.

Safe Operation Guidelines

Outlines general safety guidelines for operating the unit, including installation and servicing.

Maintenance and Service Safety

Emphasizes that maintenance and servicing should only be performed by qualified persons.

Refrigerant Safety Precautions

Warns against modifying or disassembling the unit, advising to contact the dealer.

About the System

Mildly Flammable Material Warning

Highlights the mild flammability of the refrigerant inside the unit.

System Troubleshooting Advice

Advises to stop operation and shut off power if unusual smells occur, contacting the dealer.

Operation

System Operation Procedure

Maintenance and Service

Setting the Master User Interface

Refrigerant Information

Troubleshooting

Error Codes Overview

Lists common error codes, their causes, and solutions for troubleshooting.

Leak Detection Error Codes

Refrigerant Leak Detection System

Special Requirements for R32 Units

Installation Space Requirements

Specifies requirements for the installation space, including warnings for R32 refrigerant.

System Layout Requirements

Details system layout requirements, including R32 refrigerant handling and safety measures.

Outdoor Unit Installation Guidelines

Provides guidelines for outdoor unit installation, mentioning indoor installation requirements.

Remote Controller Requirements

Outlines requirements for safety system compatible remote controllers for R32 units.

Refrigerant Charge Limit

Explains how to determine the refrigerant charge limit for each BS unit branch pipe port.

Determining the Charge Limit

Details the steps to determine the maximum indoor capacity index and refrigerant charge limit.

Maximum Indoor Unit Capacity Class

Unit Installation

Preparing the Installation Site

Gives instructions for preparing the installation site, including safety warnings.

Outdoor Unit Installation Site Requirements

Details site requirements for outdoor unit installation, including spacing and environmental considerations.

Mounting the Outdoor Unit

Piping Installation

Refrigerant Piping Preparation

Selecting Piping Size

Selecting Refrigerant Branch Kits

Connecting Refrigerant Piping

Using Stop Valve and Service Port

Removing Pinched Pipes

Checking Refrigerant Piping

Outlines the steps for checking refrigerant piping, including leak testing and vacuum drying.

Refrigerant Piping Check: General Guidelines

Provides general guidelines for leak testing and vacuum drying procedures.

Refrigerant Piping Check Setup

Details the setup required for checking refrigerant piping, including necessary equipment.

Performing a Leak Test

Describes procedures for performing vacuum leak tests and pressure leak tests.

Performing Vacuum Drying

Details the process of vacuum drying to remove moisture from the system.

Insulating Refrigerant Piping

Charging Refrigerant

Precautions for Refrigerant Charging

Lists important precautions to follow before and during refrigerant charging.

About Charging Refrigerant

Determining Additional Refrigerant Amount

Provides formulas and tables to calculate the required additional refrigerant amount.

Refrigerant Charging Flow Chart

Refrigerant Charging Procedure

Charging Refrigerant Error Codes

Post-Charging Checks

Electrical Installation

Electrical Compliance

Safety Device Requirements

Specifies safety device requirements, including main switches, fuses, and earth leakage protectors.

Standard Combination Wiring

Routing and Fixing Transmission Wiring

Connecting Transmission Wiring

Routing and Fixing Power Supply

Connecting Power Supply

Configuration

Making Field Settings

Field Setting Components

Accessing Field Setting Components

Accessing Mode 1 or 2

Using Mode 1 (Monitoring)

Using Mode 2 (Field Settings)

Mode 1: Monitoring Settings

Mode 2: Field Settings

Additional Refrigerant Charge Input

Manual Refrigerant Charge;Connection Check

Commissioning

Commissioning Precautions

Lists precautions to be taken before and during the commissioning process.

Pre-Commissioning Checklist

Provides a checklist of items to verify before starting the commissioning process.

During Commissioning Checklist

Lists checks to be performed during commissioning, including BS unit test runs and connection checks.

BS Unit Test Run Procedure

System Test Run Procedure

Performing a Test Run

Hand-over to the User

Abnormal Completion

Correcting Abnormal Test Completion

Technical Data

Outdoor Unit Service Space

Outdoor Unit Wiring Diagram

Daikin VRV 5 Series Specifications

General

Series	VRV 5
Energy Efficiency Ratio (EER)	Varies by model. Refer to specific model data.
Heating Capacity Range	9.0 - 60.0 kW
Dimensions (Outdoor Unit)	Varies by model
Weight (Outdoor Unit)	Varies by model