Daikin DZ20VC Series Manuals

Manuals and User Guides for Daikin DZ20VC Series. We have 2 Daikin DZ20VC Series manuals available for free PDF download: Service Instructions Manual, Instructions

Daikin DZ20VC Series Service Instructions Manual (113 pages)

Inverter Heat Pump Condenser Units with R-410A Refrigerant Blowers, Coils, & Accessories

Brand: Daikin | Category: Inverter | Size: 8 MB

Table of Contents
2
Important Information
2
Notice
2
Safe Refrigerant Handling
2
Important Information
3
Nomenclatures
4
Product Identification
4
Expansion Valves
5
Accessories
5
- Valid Switch Settings
  6
- Condensate Management Kits
  6
Testing Capacitor Resistance
7
- Install the Control Board
  9
- Uninstall the Control Board
  9
Replacing the Control Board
9
- Condensing Unit
  10
- Defrost Cycle
  10
- Heating
  10
System Operation
10
- System Startup Test
  11
- Dehumidification
  11
- Set Thermostat to Charge Mode
  11
- Dehumidification Tips
  11
- Cool Settings
  12
- Error History
  12
- System Test
  12
- Daikin One+ System Advanced Features
  12
- Max Compressor Rps / Max Rps Offset
  13
- Heat Setting
  13
- Dehumidification Select
  13
- Cooling Cycle
  15
- Piping Diagram with TXV Applicable Indoor Unit
  15
- Troubleshooting
  17
Cooling Analysis Chart
17
Heating Analysis Chart
18
Servicing Table of Contents
19
Servicing
20
- Checking Thermostat and Wiring
  20
- Checking Voltage
  20
- Checking Transformer and Control Circuit
  21
- S-3E Daikin Communicating Thermostat
  21
  - Thermostat Wiring
    21
  - Two-Wire Outdoor, Four-Wire Indoor Wiring
    21
- Checking Compressor
  22
- Checking High Pressure Switch
  22
- Checking Indoor and Outdoor Hi/Low Pressure Sensor
  22
- Voltage and Pressure Characteristics
  22
- S-17A Resistance Test
  23
- S-17B Ground Test
  23
- S-40A Mbvc**00Aa-1 Heater Control
  24
- Testing EEV Coil Resistance
  24
- S-40B DV**Pec Heater Control
  25
- Checking Heater Elements
  26
- Checking Heater Limit Control(S)
  26
- Electric Heater (Optional Item)
  26
- (Optional Electric Heaters)
  27
  - Electric Heater Capacity Btuh
    27
  - HEAT KIT NOMINAL Kw
    27
- S-61A Checking Heater Limit Control(S)
  27
- S-61B Checking Heater Fuse Link
  27
- Brazing Materials
  28
- Evacuation
  28
- Leak Testing (Nitrogen or Nitrogen-Traced)
  28
- Refrigeration Repair Practice
  28
- Charging
  29
- Final Charge Adjustment
  29
- Checking Compressor Efficiency
  30
- If These Symptoms Are Observed
  30
- Overfeeding
  30
- S-105B Thermostatic Expansion Valve
  30
- Superheat
  30
- Charging Table
  31
- Checking Subcooling
  31
  - Superheat and Subcooling Adjustment on Txv Applications
    31
  - Checking Thermostatic Expansion Valve Operation
    32
- Non-Condensables
  32
- Compressor Burnout
  33
- Refrigerant Piping
  33
- Air Handler External Static
  37
- And/Or Static Pressure Drop Across Coils
  37
  - Total External Static
    37
  - Airflow Consideration
    38
- Coil Static Pressure Drop
  38
  - Auxiliary Alarm Switch
    39
  - Circulator Blower
    39
  - Communicating Board
    39
  - Indoor Unit Troubleshooting for Txv Applicable Unit
    39
  - Diagnostic Chart
    40
  - Electrostatic Discharge Precautions
    40
  - Fault Recall
    40
  - Diagnostic Codes
    41
  - Indoor Unit Control Board
    46
  - Troubleshooting-Indoor Unit for Eev Applicable Unit
    46
  - 2-Digit 7 Segment Displays
    49
  - Display Button Layout
    51
  - Fault Code History Navigation
    51
  - Mode Display Introduction
    51
  - Emergency Mode for Eev Applicable Indoor Unit
    55
  - Heating Emergency Mode
    55
- Emergency Mode
  56
Indoor Control Board Settings
56
Setting the Mode Display-Outdoor Unit
60
Troubleshooting-Outdoor Unit
73
Pressure Vs Temperature Chart
77
Required Liquid Line Temperature
78
Liquid Line Temperature Chart
78
Wiring Diagram
79
- Indoor Unit for Txv Applicable Unit
  81
- Indoor Unit for Eev Applicable Unit (DV*Pec*)
  82
Ctk04 Addendum
82
- System Start-Up Test
  84
- Cool Setup
  112
- Set Cooling Run Values (Cl Run Values)
  112
- Heat Setup
  112
- Set Heating Run Values (Ht Run Values)
  112

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