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Daikin FTXS71BVMA8 User Manual

Daikin FTXS71BVMA8
298 pages
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C-Series
[Applied Models]
zInverter Multi : Cooling Only
zInverter Multi : Heat Pump
Si12 - 411A

Table of Contents

Questions and Answers:

Daikin FTXS71BVMA8 Specifications

General IconGeneral
TypeSplit System
Cooling Capacity7.1 kW
Heating Capacity8.0 kW
Outdoor Unit Noise Level47 dB(A)
Power Supply220-240V, 50Hz
RefrigerantR32
Indoor Unit Dimensions (WxHxD)1, 100 x 315 x 225 mm
Outdoor Unit Dimensions (WxHxD)800 x 540 x 300 mm

Summary

Part 1 List of Functions

1.2 Heat Pump Models

Details functions specific to heat pump models.

1.1 Cooling Only Models

Details functions specific to cooling-only models.

Part 2 Specifications

1.1 Indoor Units - Cooling Only

Technical specifications for indoor units in cooling mode.

1.3 Indoor Units - Heat Pump

Technical specifications for indoor units in heat pump mode.

1.2 Outdoor Units - Cooling Only

Technical specifications for outdoor units in cooling mode.

1.4 Outdoor Units - Heat Pump

Technical specifications for outdoor units in heat pump mode.

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.

1. Introduction

1.1 Safety Cautions

Essential safety guidelines and warnings for handling the equipment.

Part 4 Function and Control

1. Main Functions

Overview of the primary operational capabilities of the air conditioner.

1.1 Frequency Principle

Explanation of how compressor frequency is controlled for capacity adjustment.

1.3 Fan Speed Control for Indoor Units

How indoor unit fan speed is adjusted automatically or manually.

1.4 Programme Dry Function

Function for dehumidifying while maintaining room temperature.

1.5 Automatic Operation

Automatic selection of cooling or heating mode based on conditions.

1.6 Night Set Mode

Mode for economical operation during sleep.

1.7 Intelligent Eye

Sensor-based operation for energy saving by detecting human presence.

1.8 Home Leave Operation

Function for maintaining comfortable temperature during absence.

1.9 Inverter Powerful Operation

Operation to maximize cooling/heating capacity quickly.

2. Function of Main Structural Parts

Explanation of the roles of key internal components.

2.2 Function of Thermistor

Details the purpose and function of various thermistors in the system.

3. Control Specification

Technical details on how the system's operations are controlled.

3.2 Frequency Control

How compressor frequency is determined and adjusted.

3.3 Controls at Mode Changing / Start-up

Specific controls for mode transitions and startup sequences.

3.4 Discharge Pipe Control

Control logic based on discharge pipe temperature.

3.5 Input Current Control

Control logic based on detected input current.

3.6 Freeze-up Protection Control

Mechanism to prevent the indoor heat exchanger from freezing.

3.7 Heating Peak-cut Control

Control to limit peak power usage during heating.

3.8 Fan Control

How fan operation is managed across various modes and conditions.

3.9 Moisture Protection Function 2

Function to protect the compressor from moisture issues.

3.10 Defrost Control

Control logic for managing the defrost cycle in heat pump mode.

Part 5 System Configuration

2.2 Safety Precautions

Critical safety guidelines for installation and operation.

2.14 Troubleshooting

Common issues and their solutions for user-level problems.

Part 6 Service Diagnosis

1.1 Troubleshooting with the Operation Lamp

Using the operation lamp status for initial troubleshooting.

5. Troubleshooting

Comprehensive guide to diagnosing and resolving system faults.

Part 7 Removal Procedure

Part 8 Others

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