Daikin ERQ Manuals

Manuals and User Guides for Daikin ERQ. We have 2 Daikin ERQ manuals available for free PDF download: Service Manual, Installation Manual

Daikin ERQ Service Manual

Daikin ERQ Service Manual (260 pages)

ERQ 100/125/140 A7V1B (outdoor unit) EKEQD/F/MCBV3 (control box) EKEXV 50/63/80/100/125/140 (expansion valve kit)  
Brand: Daikin | Category: Heat Pump | Size: 13.3 MB
Table of contents
Service Manual1................................................................................................................................................................
Table Of Contents3................................................................................................................................................................
Introduction7................................................................................................................................................................
Safety Cautions7................................................................................................................................................................
Part 1 General Information11................................................................................................................................................................
Model Names Of Outdoor Units, Control Box And Expansion Valve Kit12................................................................................................................................................................
Outdoor Units12................................................................................................................................................................
Control Box13................................................................................................................................................................
Expansion Valve Kit14................................................................................................................................................................
Combination Table15................................................................................................................................................................
Esie0915................................................................................................................................................................
Part 2 Specifications17................................................................................................................................................................
Specifications18................................................................................................................................................................
Air Handling Units21................................................................................................................................................................
Part 3 List Of Electrical And Functional Parts23................................................................................................................................................................
List Of Electrical And Functional Parts24................................................................................................................................................................
Outdoor Unit24................................................................................................................................................................
Part 4 Refrigerant Circuit25................................................................................................................................................................
Refrigerant Circuit26................................................................................................................................................................
Functional Parts Layout28................................................................................................................................................................
Erq 100/125/140 A7v1b28................................................................................................................................................................
Back View29................................................................................................................................................................
Part 5 Function31................................................................................................................................................................
Operation Mode32................................................................................................................................................................
Basic Control33................................................................................................................................................................
Normal Operation33................................................................................................................................................................
Compressor Pi Control34................................................................................................................................................................
Cooling Operation Fan Control35................................................................................................................................................................
Special Control36................................................................................................................................................................
Startup Control36................................................................................................................................................................
Oil Return Operation37................................................................................................................................................................
Defrosting Operation39................................................................................................................................................................
Pump-down Residual Operation40................................................................................................................................................................
Restart Standby41................................................................................................................................................................
Stopping Operation42................................................................................................................................................................
Protection Control43................................................................................................................................................................
High Pressure Protection Control43................................................................................................................................................................
Low Pressure Protection Control44................................................................................................................................................................
Discharge Pipe Protection Control45................................................................................................................................................................
Inverter Protection Control46................................................................................................................................................................
Other Control47................................................................................................................................................................
Demand Operation47................................................................................................................................................................
Heating Operation Prohibition47................................................................................................................................................................
Outline Of Control48................................................................................................................................................................
Thermostat Sensor In Remote Controller (only For Z-control)48................................................................................................................................................................
Freeze Prevention50................................................................................................................................................................
Hot Start Control (in Heating Operation Only)51................................................................................................................................................................
Part 6 Control Box Ekeq - Cbv353................................................................................................................................................................
Different Systems With Their Control Boxes54................................................................................................................................................................
System A: Pair54................................................................................................................................................................
System B: Multi56................................................................................................................................................................
X, Y, Z Control59................................................................................................................................................................
X-control59................................................................................................................................................................
Y-control60................................................................................................................................................................
Z-control61................................................................................................................................................................
Wiring Diagram Of Control Box62................................................................................................................................................................
D-box62................................................................................................................................................................
F-box63................................................................................................................................................................
Attention Points64................................................................................................................................................................
System A: Ekeqf & Ekeqd-box: Installation And Operation Manual65................................................................................................................................................................
System A: Ekeqf & Ekeqd-box: Installation And Operation Manual.5565................................................................................................................................................................
System B: Ekeqm-box: Installation And Operation Manual80................................................................................................................................................................
Part 7 Test Operation93................................................................................................................................................................
Test Operation94................................................................................................................................................................
Procedure And Outline94................................................................................................................................................................
Air Tight Test And Vacuum Drying95................................................................................................................................................................
Operation When Power Is Turned On100................................................................................................................................................................
Outdoor Unit Pc Board Layout101................................................................................................................................................................
Field Setting102................................................................................................................................................................
Field Setting From Remote Controller102................................................................................................................................................................
Field Setting From Outdoor Unit110................................................................................................................................................................
Part 8 Installation And Operation Manual127................................................................................................................................................................
Installation Manual128................................................................................................................................................................
Safety Considerations131................................................................................................................................................................
Combination132................................................................................................................................................................
Standard Supplied Accessories133................................................................................................................................................................
Technical And Electrical Specifications133................................................................................................................................................................
Before Installation133................................................................................................................................................................
Precautions For R410a133................................................................................................................................................................
Installation133................................................................................................................................................................
Handling133................................................................................................................................................................
Selecting Installation Site133................................................................................................................................................................
Precautions On Installation134................................................................................................................................................................
Installation Method For Prevention Of Falling Over135................................................................................................................................................................
Method For Removing Transportation Stay135................................................................................................................................................................
Method For Installing Drain Piping135................................................................................................................................................................
Installation Servicing Space135................................................................................................................................................................
Refrigerant Pipe Size And Allowable Pipe Length136................................................................................................................................................................
Selection Of Piping Material136................................................................................................................................................................
Precautions On Refrigerant Piping136................................................................................................................................................................
Cautions For Brazing137................................................................................................................................................................
Cautions For Flare Connection137................................................................................................................................................................
Refrigerant Piping137................................................................................................................................................................
Preventing Foreign Objects From Entering138................................................................................................................................................................
Cautions For Handling Stop Valve138................................................................................................................................................................
How To Use The Stop Valve138................................................................................................................................................................
Cautions For Handling The Valve Cover138................................................................................................................................................................
Cautions For Handling Service Port138................................................................................................................................................................
Precautions When Connecting Field Piping And139................................................................................................................................................................
Regarding Insulation139................................................................................................................................................................
Leak Test And Vacuum Drying139................................................................................................................................................................
Additional Refrigerant Charge139................................................................................................................................................................
Important Information Regarding The Refrigerant Used140................................................................................................................................................................
Procedures For Adding Refrigerant141................................................................................................................................................................
Electrical Wiring Work141................................................................................................................................................................
Internal Wiring - Parts Table141................................................................................................................................................................
Precautions On Electrical Wiring Work142................................................................................................................................................................
Connection Example Of Total System Wiring143................................................................................................................................................................
Connecting Power Wire And Transmission Wires143................................................................................................................................................................
Power Circuit And Cable Requirements143................................................................................................................................................................
Before Operation145................................................................................................................................................................
Service Precautions145................................................................................................................................................................
Checks Before Initial Start-up145................................................................................................................................................................
Checks In Normal Operation148................................................................................................................................................................
Temperature Adjustment Operation Confirmation148................................................................................................................................................................
Service Mode Operation148................................................................................................................................................................
Caution For Refrigerant Leaks149................................................................................................................................................................
Maximum Concentration Level149................................................................................................................................................................
Procedure For Checking Maximum Concentration149................................................................................................................................................................
Disposal Requirements149................................................................................................................................................................
What To Do Before Operation153................................................................................................................................................................
Remote Controller154................................................................................................................................................................
Changeover Switch: Name And Function Of Each Switch154................................................................................................................................................................
Operation Range154................................................................................................................................................................
Operation Procedure154................................................................................................................................................................
Cooling, Heating, And Fan Only Operation154................................................................................................................................................................
Energy Saving And Optimum Operation155................................................................................................................................................................
Maintenance155................................................................................................................................................................
Maintenance After A Long Stop Period155................................................................................................................................................................
Maintenance Before A Long Stop Period155................................................................................................................................................................
Following Symptoms Are Not Air Conditioner Troubles155................................................................................................................................................................
Troubleshooting156................................................................................................................................................................
After-sales Service And Warranty157................................................................................................................................................................
After-sales Service157................................................................................................................................................................
Shortening Of "maintenance Cycle" And "replacement Cycle" Needs To Be Considered In Following Situations157................................................................................................................................................................
Part 9 Troubleshooting159................................................................................................................................................................
Symptom-based Troubleshooting161................................................................................................................................................................
Troubleshooting By Remote Controller164................................................................................................................................................................
The Inspection / Test Button164................................................................................................................................................................
Self-diagnosis By Wired Remote Controller165................................................................................................................................................................
Remote Controller Service Mode166................................................................................................................................................................
Remote Controller Self-diagnosis Function168................................................................................................................................................................
Troubleshooting By Indication On The Remote Controller175................................................................................................................................................................
A0" Ahu: Error Of External Protection Device175................................................................................................................................................................
A1" Ahu: Pc Board Defect176................................................................................................................................................................
A6" Ahu: Fan Motor (m1f) Lock, Overload177................................................................................................................................................................
Abnormal Power Supply Voltage178................................................................................................................................................................
A9" Ahu: Malfunction Of Moving Part Of Electronic Expansion Valve (y1e)179................................................................................................................................................................
Aj" Ahu: Malfunction Of Capacity Determination Device181................................................................................................................................................................
C1" Ahu: Failure Of Transmission (between Ahu Pc Board And Fan Pc Board)182................................................................................................................................................................
C4" Ahu: Malfunction Of Thermistor (r2t) For Heat Exchanger184................................................................................................................................................................
C5" Ahu: Malfunction Of Thermistor (r3t) For Gas Pipes185................................................................................................................................................................
Board)186................................................................................................................................................................
C9" Ahu: Malfunction Of Thermistor (r1t) For Suction Air187................................................................................................................................................................
Ca" Ahu: Malfunction Of Thermistor For Discharge Air188................................................................................................................................................................
Cc" Ahu: Malfunction Of Humidity Sensor System189................................................................................................................................................................
Cj" Ahu: Malfunction Of Thermostat Sensor In Remote Controller190................................................................................................................................................................
E1" Outdoor Unit: Pc Board Defect191................................................................................................................................................................
E3" Outdoor Unit: Actuation Of High Pressure Switch192................................................................................................................................................................
E4" Outdoor Unit: Actuation Of Low Pressure Sensor194................................................................................................................................................................
E5" Inverter Compressor Motor Lock196................................................................................................................................................................
E7" Malfunction Of Outdoor Unit Fan Motor197................................................................................................................................................................
E9" Outdoor Unit: Malfunction Of Moving Part Of Electronic Expansion Valve (y1e, Y3e)198................................................................................................................................................................
Valve (y1e, Y3e)198................................................................................................................................................................
F3" Outdoor Unit: Abnormal Discharge Pipe Temperature200................................................................................................................................................................
F6" Outdoor Unit: Refrigerant Overcharged201................................................................................................................................................................
H9" Outdoor Unit: Malfunction Of Thermistor (r1t) For Outdoor Air202................................................................................................................................................................
J3" Outdoor Unit: Malfunction Of Discharge Pipe Thermistor (r2t)203................................................................................................................................................................
J5" Outdoor Unit: Malfunction Of Thermistor (r3t, R5t) For Suction Pipe 1, 2204................................................................................................................................................................
J6" Outdoor Unit: Malfunction Of Thermistor (r6t)205................................................................................................................................................................
J7" Outdoor Unit: Malfunction Of Thermistor (r7t) For Outdoor Unit Liquid Pipe206................................................................................................................................................................
J9" Outdoor Unit: Malfunction Of Thermistor (r4t)207................................................................................................................................................................
Ja" Outdoor Unit: Malfunction Of High Pressure Sensor208................................................................................................................................................................
Jc" Outdoor Unit: Malfunction Of Low Pressure Sensor209................................................................................................................................................................
L1" Outdoor Unit: Malfunction Of Pc Board210................................................................................................................................................................
L4" Outdoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise211................................................................................................................................................................
L5" Outdoor Unit: Inverter Compressor Abnormal212................................................................................................................................................................
L8" Outdoor Unit: Inverter Current Abnormal213................................................................................................................................................................
L9" Outdoor Unit: Inverter Start Up Error214................................................................................................................................................................
Lc" Outdoor Unit: Malfunction Of Transmission Between Inverter And Control Pc Board215................................................................................................................................................................
P1" Outdoor Unit: High Voltage Of Capacitor In Main Inverter Circuit216................................................................................................................................................................
U0" Low Pressure Drop Due To Refrigerant Shortage Or Electronic Expansion Valve Failure217................................................................................................................................................................
U2" Power Supply Insufficient Or Instantaneous Failure219................................................................................................................................................................
U3" Check Operation Not Executed221................................................................................................................................................................
U4" Malfunction Of Transmission Between Ahus And Outdoor Units222................................................................................................................................................................
U5" Malfunction Of Transmission Between Remote Controller And Ahu224................................................................................................................................................................
Ua" Excessive Number Of Ahus225................................................................................................................................................................
Uf" System Is Not Set Yet226................................................................................................................................................................
Uh" Malfunction Of System, Refrigerant System Address Undefined227................................................................................................................................................................
Troubleshooting By Indication On The Unified On/off Controller228................................................................................................................................................................
Operation Lamp Blinks228................................................................................................................................................................
Display "under Host Computer Integrate Control" Blinks (repeats Single Blink)230................................................................................................................................................................
Display "under Host Computer Integrate Control" Blinks (repeats Double Blink)233................................................................................................................................................................
Part 10 Appendix237................................................................................................................................................................
Piping Diagrams238................................................................................................................................................................
Wiring Diagrams239................................................................................................................................................................
Field Wiring240................................................................................................................................................................
Option List241................................................................................................................................................................
Thermistor Resistance / Temperature Characteristics242................................................................................................................................................................
Pressure Sensor244................................................................................................................................................................
Method Of Replacing The Inverter's Power Transistors Modules245................................................................................................................................................................
Part 11 Precautions For New Refrigerant (r-410a)247................................................................................................................................................................
Precautions For New Refrigerant (r-410a)248................................................................................................................................................................
Outline248................................................................................................................................................................
Refrigerant Cylinders250................................................................................................................................................................
Service Tools251................................................................................................................................................................

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Daikin ERQ Installation Manual

Daikin ERQ Installation Manual (42 pages)

Brand: Daikin | Category: Heat Pump | Size: 9.48 MB
Table of contents
Table Of Contents3................................................................................................................................................................
Nomenclature4................................................................................................................................................................
Data Plate - Specific Information4................................................................................................................................................................
Data Plate Location5................................................................................................................................................................
Models Arq, Erq, Grq Self-contained Floor Unit Ventilator Installation5................................................................................................................................................................
Receiving & Handling5................................................................................................................................................................
Visible Loss Or Damage5................................................................................................................................................................
Concealed Loss Or Damage5................................................................................................................................................................
Storage5................................................................................................................................................................
Lifting Unit5................................................................................................................................................................
General Unit Data5................................................................................................................................................................
Safety6................................................................................................................................................................
Pre-installation Considerations6................................................................................................................................................................
Uncrate And Inspect The Unit Ventilator(s)6................................................................................................................................................................
Typical Floor Unit Installation7................................................................................................................................................................
Typical Ventimatic Shutter Installation7................................................................................................................................................................
Meeting Ibc Seismic Requirements8................................................................................................................................................................
Wall Openings, Louvers & Venitmatic Shutter9................................................................................................................................................................
Louver Installations With Typical Unit Arrangements10................................................................................................................................................................
16-5/8" Unit Depth10................................................................................................................................................................
21-7/8" Unit Depth11................................................................................................................................................................
Unit Depth12................................................................................................................................................................
Installing Louvers12................................................................................................................................................................
Installing The Ventimatic Shutter Assembly14................................................................................................................................................................
Preparing To Move The Unit16................................................................................................................................................................
Removing Unit From Skid16................................................................................................................................................................
Unit Ventilator Installation16................................................................................................................................................................
Before Sliding The Unit Into Place16................................................................................................................................................................
Installing Casters16................................................................................................................................................................
Reversing Condensate Drain End17................................................................................................................................................................
Mounting Hole Locations & Dimensions17................................................................................................................................................................
Operating Limits19................................................................................................................................................................
Piping Considerations20................................................................................................................................................................
Water System Cleaning21................................................................................................................................................................
Make Piping Connections22................................................................................................................................................................
Water Coil Connections22................................................................................................................................................................
System Balancing23................................................................................................................................................................
Making Control Connections24................................................................................................................................................................
Microtech Ii Unit-mounted Ddc Control Components24................................................................................................................................................................
Typical Wiring Diagram27................................................................................................................................................................
Dx Cooling With Electric Heat, Valve Control 460v, 3 Phase27................................................................................................................................................................
Electical Data28................................................................................................................................................................
Size 02428................................................................................................................................................................
Size 04028................................................................................................................................................................
Size 04829................................................................................................................................................................
Microtech Ii Unit Electical Connections30................................................................................................................................................................
Microtech Ii Remote Wall-mounted Sensor32................................................................................................................................................................
Electromechanical Unit Wire Connections36................................................................................................................................................................
Installing (optional) End Panel37................................................................................................................................................................
Piping Stub-up Details, 6' End Panel38................................................................................................................................................................
End Panel Assembly, 1" And 6" End Panel38................................................................................................................................................................
Prepare Unit Ventilator For Start-up39................................................................................................................................................................
Post Installtion Checklist39................................................................................................................................................................
Oiling39................................................................................................................................................................
Filters39................................................................................................................................................................
Prepare For Start-up40................................................................................................................................................................
Complete Check, Test And Start Procedure40................................................................................................................................................................
Troubleshooting41................................................................................................................................................................
The In And Outs Of R-410a41................................................................................................................................................................
Lubrication41................................................................................................................................................................
Charging41................................................................................................................................................................
General Maintenance41................................................................................................................................................................
Troubleshooting Refrigeration Circuit42................................................................................................................................................................

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