Daikin DZ20VC - Page 98

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CTK04 ADDENDUM

3. Enter Installer password. (The password is the Date Code

located on the thermostat and is available by entering the

EQUIPMENT STATUS menu and scrolling to the bottom).

4. Select YES to continue.

5. Select HEAT PUMP.

6. Select

COOL SETUP: COOLING MODE

HEAT SETUP: HEATING MODE

Main Page

Table of Contents2
Important Information2
Notice2
Safe Refrigerant Handling2
Important Information3
Nomenclatures4
Product Identification4
Expansion Valves5
Accessories5
- Valid Switch Settings6
- Condensate Management Kits6
Testing Capacitor Resistance7
- Install the Control Board9
- Uninstall the Control Board9
Replacing the Control Board9
- Condensing Unit10
- Defrost Cycle10
- Heating10
System Operation10
- System Startup Test11
- Dehumidification11
- Set Thermostat to Charge Mode11
- Dehumidification Tips11
- Cool Settings12
- Error History12
- System Test12
- Daikin One+ System Advanced Features12
- Max Compressor Rps / Max Rps Offset13
- Heat Setting13
- Dehumidification Select13
- Cooling Cycle15
- Piping Diagram with TXV Applicable Indoor Unit15
- Troubleshooting17
Cooling Analysis Chart17
Heating Analysis Chart18
Servicing Table of Contents19
Servicing20
- Checking Thermostat and Wiring20
- Checking Voltage20
- Checking Transformer and Control Circuit21
- S-3E Daikin Communicating Thermostat21
  - Thermostat Wiring21
  - Two-Wire Outdoor, Four-Wire Indoor Wiring21
- Checking Compressor22
- Checking High Pressure Switch22
- Checking Indoor and Outdoor Hi/Low Pressure Sensor22
- Voltage and Pressure Characteristics22
- S-17A Resistance Test23
- S-17B Ground Test23
  - Testing Compressor Windings23
  - Testing Temperature Sensors and Eev Coil Resistance23
  - Basic Operation24
  - Motor Control Circuits24
- S-40A Mbvc**00Aa-1 Heater Control24
- Testing EEV Coil Resistance24
- S-40B DV**Pec Heater Control25
- Checking Heater Elements26
- Checking Heater Limit Control(S)26
- Electric Heater (Optional Item)26
  - Heater Kit Capacity Setting (DV*Pec)26
  - Setting with Communicating Thermostat26
  - Setting with Dip Switch26
- (Optional Electric Heaters)27
  - Electric Heater Capacity Btuh27
  - HEAT KIT NOMINAL Kw27
- S-61A Checking Heater Limit Control(S)27
- S-61B Checking Heater Fuse Link27
- Brazing Materials28
- Evacuation28
- Leak Testing (Nitrogen or Nitrogen-Traced)28
- Refrigeration Repair Practice28
- Charging29
- Final Charge Adjustment29
- Checking Compressor Efficiency30
- If These Symptoms Are Observed30
- Overfeeding30
- S-105B Thermostatic Expansion Valve30
- Superheat30
- Charging Table31
- Checking Subcooling31
  - Superheat and Subcooling Adjustment on Txv Applications31
  - Checking Thermostatic Expansion Valve Operation32
- Non-Condensables32
- Compressor Burnout33
- Refrigerant Piping33
  - Installation of Refrigerant Piping34
  - Installation of Refrigeration Piping from Vertical to Horizontal34
  - Heat Pump above Indoor Coil35
  - Outdoor Unit Is above the Indoor Unit35
  - Burying Refrigerant Lines36
  - Oil Trap36
  - Outdoor Unit Is below the Indoor Unit36
- Air Handler External Static37
- And/Or Static Pressure Drop Across Coils37
  - Total External Static37
  - Airflow Consideration38
- Coil Static Pressure Drop38
  - Auxiliary Alarm Switch39
  - Circulator Blower39
  - Communicating Board39
  - Indoor Unit Troubleshooting for Txv Applicable Unit39
  - Diagnostic Chart40
  - Electrostatic Discharge Precautions40
  - Fault Recall40
  - Diagnostic Codes41
  - Indoor Unit Control Board46
  - Troubleshooting-Indoor Unit for Eev Applicable Unit46
  - 2-Digit 7 Segment Displays49
  - Display Button Layout51
  - Fault Code History Navigation51
  - Mode Display Introduction51
  - Emergency Mode for Eev Applicable Indoor Unit55
  - Heating Emergency Mode55
- Emergency Mode56
  - Outdoor Control Board Settings56
  - Cooling Emergency Mode57
  - Default Factory Settings58
  - Cooling Emergency Mode Wiring for Txv Applicable Indoor Unit59
  - Indoor Unit Integrated Control Module59
Indoor Control Board Settings56
Setting the Mode Display-Outdoor Unit60
- Navigating through the Display Screens61
- SCREEN 0 (Display FAULT CODE)66
- SCREEN 1 (Display FAULT CODES)66
- Screen 2 (Monitor Mode)66
- 7-Segment Display-Outdoor Unit67
- Identification of Connectors on 20 SEER OD Control Board73
Troubleshooting-Outdoor Unit73
- Network Troubleshooting75
- Thermistor Resistance and Temperature Characteristics76
- R-410A Pressure Vs. Temperature Chart77
Pressure Vs Temperature Chart77
Required Liquid Line Temperature78
Liquid Line Temperature Chart78
Wiring Diagram79
- Indoor Unit for Txv Applicable Unit81
- Indoor Unit for Eev Applicable Unit (DV*Pec*)82
Ctk04 Addendum82
- System Start-Up Test84
- Cool Setup112
- Set Cooling Run Values (Cl Run Values)112
- Heat Setup112
- Set Heating Run Values (Ht Run Values)112

Daikin DZ20VC - Page 98

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