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Daikin VRV IV-S - User Manual

Daikin VRV IV-S
72 pages
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Installer and user reference guide
VRV IV-S system air conditioner
English
Installer and user
reference guide
VRV IV-S system air conditioner
RXYSQ8TMY1B 
       
  
RXYSQ10TMY1B
RXYSQ12TMY1B

Table of Contents

Questions and Answers

  • B
    Bradley EvansSep 13, 2025
    What to do if my Daikin Air Conditioner compressor casing temperature sensor malfunction (R8T): open circuit?
    • K
      kristina28Sep 13, 2025
      If the compressor casing temperature sensor (R8T) shows an open circuit - A1P (X29A) on your Daikin Air Conditioner, check the connection on the PCB or actuator.
  • J
    Jeffrey RodriguezAug 25, 2025
    What to do if my Daikin Air Conditioner compressor casing temperature is too high?
    • D
      Danielle AlexanderAug 25, 2025
      If the compressor casing temperature is too high on your Daikin Air Conditioner, it could be due to a closed stop valve or a refrigerant shortage. To resolve this, first open the stop valves. If the problem persists, check the refrigerant amount and recharge the unit.
  • H
    heather28Aug 25, 2025
    What to do if my Daikin Air Conditioner discharge temperature is too high?
    • W
      Willie HodgesAug 26, 2025
      If the discharge temperature is too high on your Daikin Air Conditioner, it could be due to a closed stop valve or a refrigerant shortage. To resolve this, first open the stop valves. If the problem persists, check the refrigerant amount and recharge the unit.
  • J
    juarezmelanieSep 23, 2025
    What to do if my Daikin Air Conditioner low pressure sensor malfunction (S1NPL): short circuit?
    • S
      Samantha BrownSep 23, 2025
      If the low-pressure sensor (S1NPL) shows a short circuit - A1P (X31A) on your Daikin Air Conditioner, check the connection on the PCB or actuator.
  • A
    alexandria49Sep 14, 2025
    What to do if my Daikin VRV IV-S Air Conditioner compressor casing temperature sensor malfunction (R8T): short circuit?
    • A
      Amanda RiceSep 14, 2025
      If the compressor casing temperature sensor (R8T) shows a short circuit - A1P (X29A) on your Daikin Air Conditioner, check the connection on the PCB or actuator.
  • C
    Chase PattonSep 23, 2025
    What to do if my Daikin VRV IV-S high pressure sensor malfunction (S1NPH): short circuit?
    • M
      Megan KimSep 23, 2025
      If the high-pressure sensor (S1NPH) shows a short circuit - A1P (X32A) on your Daikin Air Conditioner, check the connection on the PCB or actuator.
  • M
    Madeline MullenSep 6, 2025
    What to do if my Daikin VRV IV-S Air Conditioner has transmission outdoor unit - inverter trouble?
    • G
      Gabriel PotterSep 6, 2025
      If your Daikin Air Conditioner is experiencing transmission trouble between the outdoor unit and the inverter (INV1, FAN1, or FAN2) - A1P (X20A, X28A, X42A), check the connection.
  • B
    Brett FloresSep 7, 2025
    What to do if my Daikin Air Conditioner has transmission outdoor unit - inverter: FAN1 transmission trouble?
    • S
      Susan TaylorSep 7, 2025
      If your Daikin Air Conditioner is experiencing transmission trouble between the outdoor unit and the inverter (INV1, FAN1, or FAN2) - A1P (X20A, X28A, X42A), check the connection.
  • D
    Darren WoodSep 23, 2025
    What to do if my Daikin Air Conditioner low pressure sensor malfunction (S1NPL): open circuit?
    • L
      Lisa SmallSep 23, 2025
      If the low-pressure sensor (S1NPL) shows an open circuit - A1P (X31A) on your Daikin Air Conditioner, check the connection on the PCB or actuator.
  • M
    Miss Sandra WallaceAug 31, 2025
    What to do if my Daikin VRV IV-S has a malfunction code: System test run not yet executed?
    • K
      Kevin SteeleAug 31, 2025
      If your Daikin Air Conditioner displays a malfunction code indicating that the system test run has not yet been executed, execute a system test run.

Summary

General safety precautions

Preparation

Installation

Connecting the refrigerant piping

Covers essential precautions and warnings for refrigerant piping.

Checking the refrigerant piping

Instructions for performing leak tests and vacuum drying.

Charging refrigerant

Step-by-step guide for pre-charging and manually charging refrigerant.

Connecting the electrical wiring

Essential safety precautions and warnings for electrical wiring connections.

Configuration

Making field settings

Introduces field settings and the components used.

Mode 2: Field settings

Explains specific field settings like target temperature, low noise, and power consumption.

Energy saving and optimum operation

Explains operation methods and comfort levels for energy efficiency.

Commissioning

Precautions when commissioning

Safety precautions and warnings before and during commissioning.

Checklist before commissioning

A comprehensive checklist of items to verify before starting commissioning.

Checklist during commissioning

Procedures for performing test runs and correcting abnormalities.

Hand-over to the user

Maintenance safety precautions

Safety precautions to prevent electrical hazards during maintenance.

Maintenance and service

Troubleshooting

Precautions when troubleshooting

Safety warnings and precautions to follow during troubleshooting.

Solving problems based on error codes

How to use error codes to diagnose and resolve malfunctions.

Error codes: Overview

Table listing main error codes, their causes, and solutions for RXYSQ8.

Error codes: Overview

Lists malfunction codes, their causes, and solutions.

Technical data

Operation

Energy saving and optimum operation

Daikin VRV IV-S Specifications

General IconGeneral
RefrigerantR410A
Power Source380 - 415V, 3-phase, 50Hz
Indoor Units CompatibilityWall mounted, Cassette, Duct
Operating Temperature Range (Cooling)-5°C to 46°C
Control SystemCentralized control

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