Daikin Super Multi NX C-Series - User Manual

SiE12-411
Ser vice
Manual
C-Series
[Applied Models]
!Inverter Multi : Cooling Only
!Inverter Multi : Heat Pump

Daikin Super Multi NX C-Series Specifications

General

Brand	Daikin
Model	Super Multi NX C-Series
Category	Air Conditioner
Language	English

Summary

Part 2 Specifications

1. Specifications

1.1 Indoor Units - Cooling Only

Details specifications for Daikin indoor units for cooling-only models.

1.2 Outdoor Units - Cooling Only

Details specifications for Daikin outdoor units for cooling-only models.

1.3 Indoor Units - Heat Pump

Details specifications for Daikin indoor units for heat pump models.

1.4 Outdoor Units - Heat Pump

Details specifications for Daikin outdoor units for heat pump models.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

1.1 Wall Mounted Type 20; 25; 35 Class

Wiring diagram for wall-mounted indoor units (20/25/35 class).

1.2 Wall Mounted Type 50; 60; 71 Class

Wiring diagram for wall-mounted indoor units (50/60/71 class).

1.3 Duct Connected Type

Wiring diagram for duct-connected indoor units.

1.4 Floor; Ceiling Suspended Dual Type

Wiring diagram for floor/ceiling suspended dual type units.

1.5 Floor Standing Type

Wiring diagram for floor standing indoor units.

1.6 Outdoor Units

Wiring diagram for outdoor units.

Part 4 Function and Control

1.1 Frequency Principle

3.2 Frequency Control

3.6 Freeze-up Protection Control

3.12 Electronic Expansion Valve Control

3.15 Wiring-Error Check

Part 5 System Configuration

2.2 Safety Precautions

Crucial safety guidelines for installation and operation to prevent injury and damage.

2.13 Care and Cleaning

2.14 Troubleshooting

Part 6 Service Diagnosis

1. Caution for Diagnosis

1.1 Troubleshooting with the Operation Lamp

Explains how to interpret the operation lamp's status for error detection.

2. Problem Symptoms and Measures

4. Code Indication on the Remote Controller

Provides a list of error codes displayed on the remote controller and their meanings.

4.1 Error Codes and Description of Fault

Details specific error codes and the associated faults for Daikin units.

5. Troubleshooting

Comprehensive guide for diagnosing and resolving various system faults.

5.3 Indoor Unit PCB Abnormality

Troubleshooting steps for issues related to the indoor unit's printed circuit board.

5.4 Freeze-up Protection Control or High Pressure Control

Diagnosing issues related to freeze-up or high-pressure protection activation.

5.8 Signal Transmission Error (between Indoor and Outdoor Units)

Steps to diagnose and resolve communication errors between indoor and outdoor units.

5.10 Freeze-up Protection Control

Troubleshooting guide for freeze-up protection activation during cooling.

5.11 OL Activation (Compressor Overload)

Diagnosing and resolving compressor overload issues.

5.14 Input Over Current Detection

Troubleshooting steps for detecting and resolving over-current situations.

5.22 Output Over Current Detection

5.23 Insufficient Gas

Part 7 Removal Procedure

1. Outdoor Unit (80; 90 Class)

1.1 Removal of Outer Panels

1.3 Removal of Electrical Box

1.4 Removal of PCB

1.5 Removal of Fan Motor

1.6 Removal of Electronic Expansion Valve and Thermistor

1.10 Removal of Compressor

2. Outdoor Unit (50; 52; 58; 68; 75 Class)

2.3 Removal of PCB

2.4 Removal of Fan Motor

2.9 Removal of Compressor