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Daikin DX17VSS481AA User Manual

Daikin DX17VSS481AA
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INSTALLATION INSTRUCTIONS
AIR CONDITIONER
DX17VSS AIR CONDITIONING
INSTALLATION & SERVICE REFERENCE
Index
Important Safety InStructIonS ............................................. 1
ShIppIng InSpectIon .............................................................. 1
codeS & regulatIonS .......................................................... 2
featureS.............................................................................. 2
Before InStallatIon .............................................................2
precautIonS for SelectIng a locatIon ................................. 2
precautIonS for InStallatIon ............................................... 3
InStallatIon clearanceS ......................................................3
rooftop InStallatIonS .........................................................3
electrIcal noISe ................................................................. 4
Safety conSIderatIonS......................................................... 4
refrIgerant lIneS ............................................................... 6
refrIgerant lIne connectIonS ............................................. 8
leak teStIng (nItrogen or nItrogen-traced) ...................... 8
SyStem Start-up procedure ................................................ 9
Start-up procedure detaIl .................................................. 9
electrIcal connectIonS ......................................................9
calculate refrIgerant charge BaSed on lIne Set length
... 12
connect aIr condItIoner to SyStem .................................. 13
SyStem Start-up teSt (In caSe of ctk04) ........................ 14
Set thermoStat to charge mode (In caSe of ctk04)
... 17
adjuSt refrIgerant level .................................................20
meaSure SuBcoolIng to verIfy proper charge ................. 20
fIeld SelectaBle BooSt mode (In caSe of ctk04) ........... 21
dehumIdIfIcatIon (In caSe of ctk04) ................................. 24
nIght mode (In caSe of ctk04) ........................................ 25
comfortnet™ SyStem .......................................................28
aIr condItIoner advanced feature menu ........................... 30
WIrIng dIagram ................................................................ 33
teStIng capacItor reSIStance ............................................34
coolIng analySIS chart .................................................... 35
trouBleShootIng ...............................................................36
SettIng the mode dISplay .................................................. 41
7-Segment dISplay ............................................................. 47
aIr condItIonIng homeoWner’S routIne maIntenance
recommendatIonS ........................................................ 49
Start up checklISt ........................................................... 50
Important Safety InStructIonS
The following symbols and labels are used throughout this
manual to indicate immediate or potential safety hazards. It is
the owner’s and installer’s responsibility to read and comply
with all safety information and instructions accompanying
these symbols. Failure to heed safety information increases
the risk of personal injury, property damage, and/or product
damage.
WARNING
HIGH VOLTAGE !
dISconnect all poWer Before ServIcIng.
multIple poWer SourceS may Be preSent. faIlure
to do So may cauSe property damage, perSonal
Injury or death.
WARNING
only perSonnel that have Been traIned to InStall, adjuSt, Ser-
vIce or repaIr (hereInafter, “ServIce”) the equIpment SpecIfIed
In thIS manual Should ServIce the equIpment. the manufacturer
WIll not Be reSponSIBle for any Injury or property damage arIS-
Ing from Improper ServIce or ServIce procedureS. If you ServIce
thIS unIt, you aSSume reSponSIBIlIty for any Injury or property
damage WhIch may reSult. In addItIon, In jurISdIctIonS that re-
quIre one or more lIcenSeS to ServIce the equIpment SpecIfIed In
thIS manual, only lIcenSed perSonnel Should ServIce the equIp-
ment. Improper InStallatIon, adjuStment, ServIcIng or repaIr of
the equIpment SpecIfIed In thIS manual, or attemptIng to InStall,
adjuSt, ServIce or repaIr the equIpment SpecIfIed In thIS manual
WIthout proper traInIng may reSult In product damage, property
damage, perSonal Injury or death.
CAUTION
do not WaSh the aIr condItIoner WIth exceSSIve Water. an elec-
trIc Shock or fIre could reSult.
ShIppIng InSpectIon
Always keep the unit upright; laying the unit on its side or top
may cause equipment damage. Shipping damage, and sub-
sequent investigation is the responsibility of the carrier. Verify
the model number, specications, electrical characteristics,
and accessories are correct prior to installation. The distributor
or manufacturer will not accept claims from dealers for trans-
portation damage or installation of incorrectly shipped units.
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Table of Contents

Questions and Answers:

Daikin DX17VSS481AA Specifications

General IconGeneral
Cooling Capacity (BTU)48000
Heating Capacity (BTU)48000
SEERUp to 17
HSPFUp to 9.5
StagesVariable Speed
RefrigerantR-410A
Voltage208/230
Phase1
Energy Efficiency Ratio (EER)Up to 12.5
Operating Voltage208/230V

Summary

Important Safety Instructions

High Voltage Safety Warning

Warning about high voltage and power disconnection before servicing.

Personnel Training Requirement

Warning that only trained personnel should service the equipment.

Caution: Water Usage

Caution against washing the unit with excessive water to prevent shock or fire.

Before Installation Procedures

Location Selection Precautions

Installation Precautions

Foundation and Securing the Unit

General Safety Considerations

Refrigerant Handling Warnings

Serious warnings about handling refrigerants to prevent injury, explosion, or death.

Service Cylinder Usage Warning

Refrigerant Cylinder and System Safety

Refrigerant R410A Handling Precautions

Electrical Safety and Component Warnings

Warnings covering grounding, disposal, qualified personnel, specified parts, and foundation strength.

Refrigerant Line Connections

Leak Testing Procedures

Safety Warnings for Leak Testing

Critical safety warnings regarding pressure regulation and gas usage during leak tests.

System Start-Up Procedure

Detailed Start-Up and Leak Check Steps

Detailed steps for evacuating the system and checking for leaks.

Electrical Connections and Grounding

Warnings about high voltage, correct wiring, NEC compliance, and proper grounding.

Electrical Safety and Wiring

High Voltage Wiring Procedures

Terminal Block Wiring Precautions

Low Voltage and Communication Wiring

Installer Important Notices

Critical instructions for installers regarding transformer and terminal usage.

Calculate Refrigerant Charge

Refrigerant Charge Calculation Formula

Formula and steps for calculating total refrigerant charge based on line set length.

Refrigerant Charge Table

Connect Air Conditioner to System

Service Valve Opening Sequence

Instructions on the correct sequence for opening service valves to prevent damage.

System Start-Up Test (CTK04)

Procedure for Running System Test

Steps to initiate and run the system verification test on the ComfortNet thermostat.

Equipment Test Menu Operations

Running the System Test

Instructions to select and start the "SYSTEM TEST" from the EQUIP TEST menu.

Set Thermostat to Charge Mode (CTK04)

Procedure for Entering Charge Mode

Charge Mode Operations

Activating and Terminating Charge Mode

Adjust Refrigerant Level

Measure Subcooling for Charge Verification

Procedure for measuring subcooling to verify correct refrigerant charge.

Liquid Pressure to Temperature Chart

Subcooling Calculation Formula

System Diagnostics and Status

Diagnostics and Fault Code Management

Accessing and understanding system faults and diagnostic menus.

System Operation and Setup Menus

System Setup Options (SYS SET UP1/2)

Cool Set-up Adjustments

System Setup Configuration

System Verification Test Execution

Instructions for running the System Verification Test after installation.

Cooling Setup Options

Wiring Diagram

Power Supply and Component Identification

Terminal Block and Connector Details

Testing Capacitor Resistance

Capacitor Testing Safety Warnings

Critical warnings about avoiding charged areas and releasing static electricity.

Cooling Analysis Chart

Cooling Issue Cause Analysis

Chart linking symptoms like temperature deviations and pressure issues to possible causes.

Troubleshooting: Fault Codes E12-E25

OD CTRL FAIL1 and HI PRESSURE C Faults

Troubleshooting steps for OD CTRL FAIL1 and HI PRESSURE C faults, including probable causes.

LOW PRESSURE C and COMPRESSOR FAIL Faults

Troubleshooting steps for LOW PRESSURE C and COMPRESSOR FAIL faults.

PCB OR FAN FAIL and EEV CTRL FAIL Faults

Troubleshooting steps for PCB OR FAN FAIL and EEV CTRL FAIL faults.

Troubleshooting: Fault Codes E26-E45

PRESSURE SENSOR and COIL TEMP FAIL2 Faults

Troubleshooting steps for PRESSURE SENSOR and COIL TEMP FAIL2 faults.

LIQ TEMP FAIL and OD CTRL FAIL3 Faults

Troubleshooting steps for LIQ TEMP FAIL and OD CTRL FAIL3 faults.

HI TEMP CTRL Faults and CURRENT SPIKE

Troubleshooting steps for HI TEMP CTRL faults and CURRENT SPIKE.

Troubleshooting: Fault Codes E47-E56

NO SYS VER TEST and NO CHARGE MODE Faults

Troubleshooting steps for NO SYS VER TEST and NO CHARGE MODE faults.

LINE VOLT CTRL and OD COMM ERROR Faults

Troubleshooting steps for LINE VOLT CTRL and OD COMM ERROR faults.

COMP FAIL MINOR and EEV MINOR Faults

Troubleshooting steps for COMP FAIL MINOR and EEV MINOR faults.

Troubleshooting: E11 RUN SYS TEST Fault

Run System Test Fault Description

Describes the E11 fault indicating an incomplete system test.

Network Troubleshooting

Fault Code History Navigation

Viewing Recent System Faults

7-Segment Display Screens

Screen 0: Fault Code Display

Screen 1: Fault Code History

Unitary Inverter Start-Up Checklist

Pre Start-Up Checklist Items

A checklist of items to verify before initiating the system start-up process.

Unitary Inverter Start-Up Value Entry

Start-Up Values Recording

Instructions for filling in operational values from the thermostat's Status screen.

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