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Daikin Super Multi NX C-Series User Manual

Daikin Super Multi NX C-Series
298 pages
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Page #217 background image
Check SiE12-411
206 Service Diagnosis
6.1.4 Four Way Valve Performance Check
Check No.5
Turn off the power and turn it on
again.
Start the heating-mode run.
Replace the outdoor unit
PCB.
Replace the four way valve
coil.
Replace the four way valve.
(R2856)
NO
YES
YES
Four way valve
coil resistance at
1500 ohms?
NO
S80 voltage
at DC 180-220 V with
compressor on?
(Fig. 1)
Disconnect the four way valve coil
from the connector and check the
continuity.
(Fig. 1)
Voltage at S80
DC180-220V
ON
Compressor
Time
Four way valve coil
Cooling / dry : No continuity
Heating : Continuity

Table of Contents

Questions and Answers:

Daikin Super Multi NX C-Series Specifications

General IconGeneral
SeriesSuper Multi NX C-Series
Indoor UnitsWall-mounted, Floor-standing, Cassette
RefrigerantR32
ControlRemote Control, Wi-Fi Control (Optional)
Power Supply220-240V, 50Hz
Indoor Unit Noise Level19dB(A) - 45dB(A)
Outdoor Unit Noise Level45dB(A) - 60dB(A)
Indoor Unit Weight8kg - 25kg
Outdoor Unit Weight35kg - 70kg

Summary

Part 2 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

1.1 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

Part 5 System Configuration

2.2 Safety Precautions

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

Part 6 Service Diagnosis

1.1 Troubleshooting with the Operation Lamp

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

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.

Part 7 Removal Procedure

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