Daikin DZ17VSA421AA User Manual

INSTALLATION INSTRUCTIONS
HEAT PUMP
DZ17VSA HEAT PUMP
INSTALLATION & SERVICE REFERENCE
Index
Important Safety InStructIonS ............................................. 1
ShIppIng InSpectIon .............................................................. 2
codeS & regulatIonS .......................................................... 2
featureS.............................................................................. 2
acceSSorIeS ........................................................................ 2
Before InStallatIon .............................................................2
precautIonS for SelectIng a locatIon ................................. 3
precautIonS for InStallatIon ............................................... 3
InStallatIon clearanceS ......................................................4
cold clImate heat pump operatIon locatIon ...................... 5
rooftop InStallatIonS .........................................................5
electrIcal noISe ................................................................. 5
Safety conSIderatIonS......................................................... 6
meanIngS of SymBolS .......................................................... 6
refrIgerant lIneS ............................................................... 8
refrIgerant lIne connectIonS ........................................... 10
leak teStIng (nItrogen or nItrogen-traced) .................... 10
Stop ValVe operatIon method ........................................... 11
SyStem Start-up procedure .............................................. 11
Start-up procedure detaIl ................................................ 12
electrIcal connectIonS ....................................................12
Step 1. calculate refrIgerant charge BaSed on
lIne Set length .......................................................... 16
Step 2. connect heat pump to SyStem .............................. 18
Step 3. SyStem Start-up teSt ............................................ 18
addItIonal charge adjuStIng procedure .......................... 18
Step 4. adjuSt refrIgerant leVel ..................................... 18
Step 5. meaSure SuBcoolIng to VerIfy proper charge ..... 18
heat pump wIth outdoor temperature lockoutS ............... 19
wIrIng dIagram ................................................................ 20
teStIng capacItor reSIStance ............................................22
coolIng analySIS chart .................................................... 24
heatIng analySIS chart ..................................................... 25
trouBleShootIng ...............................................................26
SettIng the mode dISplay .................................................. 31
7-Segment dISplay ............................................................. 37
heat pump homeowner’S routIne maIntenance
recommendatIonS ........................................................ 40
Start up checklISt ........................................................... 41
ctk04 addendum ............................................................... 43
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. Also see “Meanings of Symbols” on page 6.
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.
prop 65 warnIng
for calIfornIa conSumerS
WARNING
-
www.P65Warnings.ca.gov
CAUTION
do not waSh the heat pump wIth exceSSIVe water. an electrIc
Shock or fIre could reSult.
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Our continuing commitment to quality products may mean a change in specications without notice.
© 2013, 2017-2019
Daikin Texas Technology Park,19001 Kermier Road,Waller, TX, 77484, U.S.A.
www.daikincomfort.com
3P515859-3P

Daikin DZ17VSA421AA Specifications

General

Model Number	DZ17VSA421AA
Category	Heat Pump
Cooling Capacity (BTU)	42000
Cooling Capacity (Ton)	3.5
SEER Rating	17
HSPF Rating	9.5
Heating Capacity (BTU)	42000
Heating Capacity (Ton)	3.5
Voltage	208/230
Phase	1
Refrigerant	R-410A
Sound Level (dB)	74
Compressor Type	Inverter
Stages	Variable

Summary

Important Safety Instructions

Service Personnel Warning

Only trained personnel should service the equipment. Manufacturer not responsible for improper service.

California Prop 65 Warning

Warning about cancer and reproductive harm from chemical exposure.

Water/Fire Hazard Caution

Do not wash the heat pump with excessive water to avoid shock or fire.

Installation Clearances

Single Unit Clearances

Required clearances for 1.5-3.0 ton and 3.5-5.0 ton single unit installations.

Two Unit Clearances

Required clearances for two unit installations.

Safety and Symbol Meanings

General Safety Considerations

Read safety instructions before installation; use licensed installers.

Refrigerant Handling Safety

Safe handling of refrigerants, including purging and ventilation.

Service Cylinder Safety

Precautions for using returnable service cylinders for refrigerant.

Refrigerant and Electrical Safety

R410A Refrigerant Precautions

Keep R410A clean, dry, tight; prevent contamination.

Grounding and Installation Warnings

Warnings on improper grounding, disposal, qualified personnel, and foundation strength.

Handling and Refrigerant Lines

Refrigerant Line Installation

Cautions on PVE oil, tubing, and line insulation.

Refrigerant Line Connections

Brazing and Purging Procedures

Notes on brazing, nitrogen purging, and filter drier installation.

Leak Testing Procedure

Warnings and steps for leak testing with dry nitrogen.

Start-Up and Electrical Safety

Refrigerant Pressure Warnings

Warnings against overcharging and operating in vacuum.

Compressor Operation Caution

Caution against operating with suction valve closed.

Start-Up Procedure Details

Steps for vacuuming, leak testing, and initial start-up.

Electrical Connection Warnings

High voltage, wiring, and conductor requirements.

High Voltage Wiring

Routing and Termination

Power Supply Wiring Precautions

Installer Important Notices

CTK04 Thermostat Wiring

Calculate Refrigerant Charge

Line Set Length Calculation

Formula and tables for calculating refrigerant charge based on line set length and diameter.

System Start-Up and Refrigerant Adjustment

Step 2: Connect Heat Pump to System

Step 4: Adjust Refrigerant Level

Step 5: Measure Subcooling

Instructions for measuring subcooling to confirm correct refrigerant charge.

Subcooling and Temperature Lockouts

Subcooling Calculation and Table

Wiring Diagram (1.5-3.0 ton)

Wiring Diagram (3.5-5.0 ton)

High Voltage Warning

Warning about high voltage during servicing or installation.

Testing Capacitor Resistance

Testing Capacitor Resistance (3.5-5.0 ton)

Safety Warnings for Testing

Avoid contact with charged areas; discharge static electricity.

Measurement Procedure

Cooling Analysis Chart

Heating Analysis Chart

Possible Causes and Indicators

Table listing possible causes and indicators for heating system analysis.

Troubleshooting Guide (Faults E12-E24)

Troubleshooting Guide (Faults E25-E42)

Troubleshooting Guide (Faults E43-E60)

Troubleshooting Guide (Faults B9-E11)

Fault Code Analysis

Details probable causes and corrective actions for specific fault codes.

Troubleshooting and Network Issues

General Troubleshooting

Network Troubleshooting

Troubleshooting communication network issues, LEDs, and dipswitches.

Unitary Inverter Start-Up Checklist

Pre-Start-Up Checklist

Pre-start-up checklist for installers to verify correct installation procedures.

Unitary Inverter Start-Up Data Recording

Data Recording Checklist

System Start-Up Test Procedure

Initiating System Test

Instructions on initiating and running the system verification test.

System Start-Up Test Execution

Running and Completing Test

Continues the procedure for running and completing the system start-up test.

Set Thermostat to Charge Mode

Entering Charge Mode

Procedure to enter CHARGE MODE for system charging and subcooling adjustment.

Charge Mode Execution

Initiating and Terminating Charge Mode

Continues the procedure for initiating and terminating CHARGE MODE.

Refrigerant Level and Subcooling Adjustment

Adjust Refrigerant Level

Measure Subcooling

Instructions for measuring subcooling to confirm correct refrigerant charge.

Outdoor Temperature Lockouts

System Setup Options

System Setup Menus

Equipment Test

Mandatory system verification test for equipment functionality.

Cool Setup Adjustments