Carrier DLFSOAH - User Manual

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Specifications subject to change without notice.

Fig. 1 — Sizes 06K - 18K

NOTE: Read the entire instruction manual before starting the

installation.

Images are for illustration purposes only. Actual models

may differ slightly.

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS........................................................2

ACCESSORIES................................................................................3

PARTS..............................................................................................4

SYSTEM REQUIREMENTS...........................................................5

WIRING ...........................................................................................5

DIMENSIONS..................................................................................6

PRIOR TO INSTALLATION ..........................................................7

Step 1 - Select Unit Location............................................................7

Step 2 - Indoor Unit Installation .......................................................7

Step 3 - Optional Parts Installation...................................................9

ELECTRICAL DATA......................................................................10

CONNECTION DIAGRAMS ..........................................................10

WIRING DIAGRAM .......................................................................10

CAPACITY SETTING.....................................................................11

DRAIN PIPE INSTALLATION ......................................................12

REFRIGERANT PIPING CONNECTION......................................13

CONNECTION INSTRUCTIONS - REFRIGERANT PIPING......14

OPTIONAL PARTS INSTALLATION...........................................19

ELECTRICAL CONNECTIONS.....................................................20

TROUBLESHOOTING ...................................................................22

DUCTLESS START-UP CHECKLIST - Single Zone ....................23

DLFSOAH

Installation Instructions

One Way Cassette Ductless Split Unit System - Sizes 06K - 18K

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The DLFSOAH is a one-way cassette ductless split unit system, available in sizes 06K, 09K, 12K, and 18K. It is designed for residential and light commercial applications, providing heating and cooling capabilities. The system consists of an indoor cassette unit and an outdoor unit, connected by refrigerant piping and electrical wiring.

Function Description:

The DLFSOAH system provides climate control for indoor spaces. It operates as a split system, meaning the compressor and condenser are located in the outdoor unit, while the evaporator and fan are in the indoor unit. This design allows for quiet indoor operation. The indoor unit, a one-way cassette, is designed for ceiling installation and distributes conditioned air through an airflow louver. The system can be controlled via a wireless remote controller (RG10L3) or an optional wired controller (KSACN0701AAA). It also supports an optional Wi-Fi dongle for smart control. The system includes features such as anti-cold air function, breezeless operation, and temperature compensation. Capacity setting allows for downsizing the unit's BTUH output (e.g., 18K to 12K, 9K to 6K) by adjusting a dial switch on the main board, offering flexibility for different room sizes and energy efficiency needs.

Important Technical Specifications:

Unit Sizes (BTUH): 6K, 9K, 12K, 18K
Voltage: 208/230V, 1-phase, 60Hz
Running Current (Indoor Unit): 0.8A (6K, 9K), 1.5A (12K, 18K)
Power Consumption (Indoor Unit): 30W (all sizes)
Power Factor (Indoor Unit): 64.4% (6K, 9K), 97.7% (12K), 67.7% (18K)
Refrigerant Pipe Sizes:
- Gas Pipe: 3/8" (9.52mm) for 6K, 9K; 1/2" (12.7mm) for 12K, 18K
- Liquid Pipe: 1/4" (6.35mm) for all sizes
Maximum Refrigerant Piping Length: 25ft (82m) for 06K-12K; 30ft (98.4m) for 18K
Maximum Drop Height: 10ft (32.8m) for 06K-12K; 20ft (65.6m) for 18K
Drain Pipe: Requires a PVC tube with an exterior diameter of 1in (25mm).
Indoor Unit Dimensions (Ceiling Hole): 16.93in (430mm) x 51.18in (1300mm)
Indoor Unit Body Dimensions: 53.54in (1360mm) L x 16.65in (423mm) W x 8.07in (205mm) H
Panel Dimensions: 53.54in (1360mm) L x 18.4in (475mm) W x 9.84in (250mm) H (from ceiling)

Usage Features:

Control: The system can be operated using a wireless remote controller, which allows users to turn the unit on/off, select operating modes (COOLING, HEATING, etc.), set desired temperatures, and program timers. An optional wired controller is also available for fixed installations.
Wi-Fi Connectivity: An optional Wi-Fi dongle enables smart control of the unit through a compatible application, offering convenience and remote access.
Airflow Management: The indoor unit features an airflow louver to direct conditioned air, ensuring even distribution throughout the room.
Capacity Setting: The unit's capacity can be adjusted to match specific room requirements, allowing for energy optimization and preventing oversizing.
Diagnostic Codes: The system is equipped with diagnostic code display LEDs on both indoor and outdoor units, which help in identifying malfunctions and protection indications, simplifying troubleshooting.
Quiet Operation: As a split system, the outdoor unit houses the noisy components, contributing to a quieter indoor environment.

Maintenance Features:

Air Filter: The indoor unit includes an air filter (installed at the air inlet) that can be removed and cleaned, contributing to better indoor air quality and system efficiency.
Troubleshooting: The diagnostic codes (Table 10) provide specific information on various malfunctions and protection states, aiding service technicians in quickly diagnosing and resolving issues. These codes cover indoor EEPROM errors, communication malfunctions, sensor errors, fan speed malfunctions, and more.
Accessibility: The design allows for access to internal components for maintenance, such as the indoor control box and disconnect switch box, by removing screws and covers.
Refrigerant Piping: Proper installation and insulation of refrigerant piping are crucial for system efficiency and preventing condensation. The manual provides detailed instructions for cutting, flaring, and connecting pipes, as well as recommendations for oil traps to protect the compressor.
Drain Pipe: The drain pipe installation instructions emphasize proper sloping and insulation to prevent water leakage and ensure efficient condensate removal. Regular checks of the drain system are recommended to prevent blockages.
Electrical Connections: The manual provides comprehensive wiring diagrams and safety considerations for electrical connections, stressing the importance of firm connections, proper grounding, and compliance with local codes to prevent malfunctions, overheating, and fire hazards.
Start-Up Checklist: A detailed checklist is provided for installation and start-up, covering leak checks, evacuation methods, piping dimensions, and performance checks, ensuring proper installation and operation from the outset. This checklist also includes a section for recording operational data using the remote controller's Point Check function, which helps in verifying system performance.