Daikin VRV IV RXMLQ8T7Y1B Series User Manual

40 pages

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Installation and operation manual

VRV IV system air conditioner

English

Installation and operation

manual

VRV IV system air conditioner

RXMLQ8T7Y1B*

RXYLQ10T7Y1B*

RXYLQ12T7Y1B*

RXYLQ14T7Y1B*

Table of Contents4
About the Documentation5
About this Document5
For the Installer5
About the Box5
To Remove the Accessories from the Outdoor Unit5
Accessory Pipes: Diameters5
To Remove the Transportation Stay6
About the Units and Options6
About the Outdoor Unit6
System Layout6
Preparation6
Preparing the Installation Site6
Installation Site Requirements of the Outdoor Unit6
Additional Installation Site Requirements of the Outdoor Unit in Cold Climates7
Preparing Refrigerant Piping7
Refrigerant Piping Requirements7
To Select the Piping Size7
To Select Refrigerant Branch Kits8
Multiple Outdoor Units: Possible Layouts9
Preparing Electrical Wiring9
Safety Device Requirements9
Installation10
Opening the Units10
To Open the Outdoor Unit10
To Open the Electrical Component Box of the Outdoor Unit10
Mounting the Outdoor Unit10
To Provide the Installation Structure10
Connecting the Refrigerant Piping11
To Route the Refrigerant Piping11
To Connect the Refrigerant Piping to the Outdoor Unit11
To Connect the Multi Connection Piping Kit11
Multiple Outdoor Units: Knockout Holes12
To Protect against Contamination12
Using the Stop Valve and Service Port12
To Remove the Pinched Pipes13
Checking the Refrigerant Piping13
About Checking the Refrigerant Piping13
Checking Refrigerant Piping: General Guidelines14
Checking Refrigerant Piping: Setup14
To Perform a Leak Test14
To Perform Vacuum Drying14
To Insulate the Refrigerant Piping14
Charging Refrigerant15
Precautions When Charging Refrigerant15
About Charging Refrigerant15
To Determine the Additional Refrigerant Amount15
To Charge Refrigerant: Flow Chart16
To Charge Refrigerant17
Step 6: to Manually Charge Refrigerant18
Checks after Charging Refrigerant18
To Fix the Fluorinated Greenhouse Gases Label18
Connecting the Electrical Wiring18
Field Wiring: Overview18
Guidelines When Knocking out Knockout Holes19
To Route and Fix the Transmission Wiring19
To Connect the Transmission Wiring19
To Finish the Transmission Wiring19
To Route and Fix the Power Supply20
To Connect the Power Supply20
Configuration20
Making Field Settings20
About Making Field Settings20
Field Setting Components21
To Access the Field Setting Components21
To Access Mode 1 or 221
To Use Mode 122
To Use Mode 222
Mode 1: Monitoring Settings22
Mode 2: Field Settings22
To Connect the PC Configurator to the Outdoor Unit23
Commissioning23
Precautions When Commissioning24
Checklist before Commissioning24
About the Test Run24
To Perform a Test Run24
Correcting after Abnormal Completion of the Test Run25
Hand-Over to the User25
Troubleshooting25
Solving Problems Based on Error Codes25
Error Codes: Overview26
10 Technical Data28
Service Space: Outdoor Unit28
Piping Diagram: Outdoor Unit29
Wiring Diagram: Outdoor Unit30
For the User31
11 About the System31
System Layout31
User Interface31
Operation31
Operation Range31
Operating the System31
About Operating the System31
About Cooling, Heating, Fan Only, and Automatic Operation31
About the Heating Operation31
To Operate the System (with Cool/Heat Changeover Remote Control Switch)32
Using the Dry Program32
About the Dry Program32
To Use the Dry Program (WITHOUT Cool/Heat Changeover Remote Control Switch)32
To Use the Dry Program (with Cool/Heat Changeover Remote Control Switch)32
Adjusting the Air Flow Direction32
About the Air Flow Flap33
Setting the Master User Interface33
About Setting the Master User Interface33
14 Maintenance and Service33
About the Refrigerant33
After-Sales Service and Warranty34
Warranty Period34
Recommended Maintenance and Inspection34
15 Troubleshooting34
Error Codes: Overview34
Symptoms that Are NOT System Malfunctions35
Symptom: the System Does Not Operate35
Symptom: Cool/Heat Cannot be Changed over35

Series	VRV IV
Model	RXMLQ8T7Y1B
Refrigerant	R410A
Noise Level (Outdoor Unit)	54 dB(A)
Indoor Unit Dimensions (HxWxD)	300 x 900 x 225 mm

Daikin VRV IV RXMLQ8T7Y1B Series User Manual

Table of Contents

Daikin VRV IV RXMLQ8T7Y1B Series Specifications

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