Gree GWH07AA-K3DNA1B/I

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Overview

Important Technical Specifications
Usage Features
Maintenance Features

This document is a service manual for Gree Electric Appliances' indoor air conditioning units, specifically models GWH(07)AA-K3DNA1B/I, GWH(09)AA-K3DNA1B/I, GWH(12)AB-K3DNA1B/I, and GWH(18)AC-K3DNA1A/I, along with their various product codes. The manual provides comprehensive information for installation, operation, maintenance, and troubleshooting of these units.

The primary function of these devices is air conditioning, offering various operation modes including AUTO, COOL, DRY, FAN, and HEAT (for heat pump models). The units are designed to provide comfortable indoor temperatures and include features aimed at enhancing user experience and air quality.

Important Technical Specifications:

The manual details specifications for different models, categorized by their cooling and heating capacities. For the GWH(07)AA-K3DNA1B/I (CB115N0680, CB115N0682) and GWH(09)AA-K3DNA1B/I (CB115N0650, CB115N0651, CB115N0652, CB115N0655, CB115N0656) models:

Capacity (Cooling): 2100 W (GWH(07)AA), 2600 W (GWH(09)AA)
Capacity (Heating): 2600 W (GWH(07)AA), 2800 W (GWH(09)AA)
Fan Motor Speed: 420 r/min (GWH(07)AA), 450 r/min (GWH(09)AA)
Airflow (SH/H/M/L/SL): 1200/1150/1000/850 m³/h (GWH(07)AA), 1250/1150/1000/850 m³/h (GWH(09)AA)
Output of Fan Motor: 10 W
Fan Motor Capacitor: 1 µF
Fan Motor RLA: 0.23 A
Fan Type: Cross flow fan (Φ85x615 mm)
Evaporator: Aluminum fin-copper tube
Pipe Diameter: Φ7 mm (GWH(09)AA)
Row-Fin Gap: 2-1.6 mm
Coil Length x Height x Coil Width: 603x25.4x266.7 mm (GWH(07)AA), 603x25.4x264 mm (GWH(09)AA)
Swing Motor Model: MP28VB, Output: 2 W
Fuse: 3.15 A
Sound Pressure Level (SH/H/M/L/SL): 37/35/32/29 dB(A) (GWH(07)AA), 38/35/32/29 dB(A) (GWH(09)AA)
Sound Power Level (SH/H/M/L/SL): 47/45/42/39 dB(A) (GWH(07)AA), 48/45/42/39 dB(A) (GWH(09)AA)
Dimensions (WxHxD): 815x267x165 mm
Liquid Connections Diameter: Φ6 mm
Gas Connections Diameter: Φ9.52 mm
Net Weight/Gross Weight: 10/13 kg

For the GWH(12)AB-K3DNA1B/I (CB115N0660, CB115N0661, CB115N0662) and GWH(18)AC-K3DNA1A/I (CB115N0670, CB115N0671, CB115N0672) models:

Capacity (Cooling): 3500 W (GWH(12)AB), 5300 W (GWH(18)AC)
Capacity (Heating): 3800 W (GWH(12)AB), 5800 W (GWH(18)AC)
Fan Motor Speed (SH/H/M/L): 550 r/min (GWH(12)AB), 840 r/min (GWH(18)AC)
Airflow: 1350/1150/1050/900 m³/h (GWH(12)AB), 1380/1150/1050/950 m³/h (GWH(18)AC)
Output of Fan Motor: 10 W (GWH(12)AB), 20 W (GWH(18)AC)
Fan Motor Capacitor: 1 µF (GWH(12)AB), 1.5 µF (GWH(18)AC)
Fan Motor RLA: 0.23 A (GWH(12)AB), 0.41 A (GWH(18)AC)
Fan Type: Cross flow fan (Φ85x668 mm for GWH(12)AB, Φ98x733 mm for GWH(18)AC)
Evaporator: Aluminum fin-copper tube
Pipe Diameter: Φ7 mm
Row-Fin Gap: 2-1.4 mm (GWH(12)AB), 2-1.5 mm (GWH(18)AC)
Coil Length x Height x Coil Width: 657x25.4x285 mm (GWH(12)AB), 740x25.4x301 mm (GWH(18)AC)
Swing Motor Model: MP28VB, Output: 2 W
Fuse: 3.15 A
Sound Pressure Level (SH/H/M/L/SL): 40/35/33/30 dB(A) (GWH(12)AB), 46/43/38/34 dB(A) (GWH(18)AC)
Sound Power Level (SH/H/M/L/SL): 50/45/43/40 dB(A) (GWH(12)AB), 56/53/48/44 dB(A) (GWH(18)AC)
Dimensions (WxHxD): 872x283x178 mm (GWH(12)AB), 960x300x195 mm (GWH(18)AC)
Liquid Connections Diameter: Φ6 mm
Gas Connections Diameter: Φ9.52 mm (GWH(12)AB), Φ12 mm (GWH(18)AC)
Net Weight/Gross Weight: 11/15 kg (GWH(12)AB), 13/18 kg (GWH(18)AC)

Usage Features:

The units are operated via a remote controller (YT1F model) which allows users to:

ON/OFF: Start or stop the unit.
Temperature Setting: Increase or decrease the desired temperature.
FAN: Adjust fan speed (AUTO, Low, Medium, High).
MODE: Select operation mode (AUTO, COOL, DRY, FAN, HEAT).
I FEEL: Activates a function where the unit automatically adjusts temperature based on sensed ambient temperature.
HEALTH: Activates a health function.
AIR: Activates an air function.
CLOCK: Set the current time.
TIMER ON/OFF: Set auto-on or auto-off timers.
SWING: Adjust swing angle of the guide louver.
X-FAN (BLOW): Dries the indoor unit after cooling or dry mode operation to prevent mold (not available in AUTO, FAN, or HEAT mode).
TEMP: Toggles between displaying set temperature, indoor ambient temperature, or outdoor ambient temperature.
TURBO: Activates a rapid cooling or heating function.
SLEEP: Activates a sleep operation mode for comfortable temperature maintenance.
LIGHT: Turns the display light on or off.
LOCK: Locks or unlocks the remote controller keypad.
Temperature Unit Switch: Switches between Celsius and Fahrenheit.

The unit also features an "Auto Button" on the indoor unit for basic ON/OFF and AUTO mode operation. The auto fan speed adjusts based on the ambient temperature and selected mode. A "Memory Function" allows the unit to resume previous settings (mode, swing, light, set temperature, fan speed, general timer) after a power failure.

Maintenance Features:

The manual provides detailed instructions for installation and maintenance, including:

Safety Precautions: Emphasizes the importance of trained personnel for installation and servicing, proper grounding, tight electrical connections, and handling refrigerant with care.
Installation Manual: Covers site selection, electrical requirements, and detailed steps for installing the indoor unit, including mounting plate, piping hole, drain hose, and electrical wiring.
Healthy Filter Installation and Maintenance: Instructions for installing, removing, and cleaning the healthy filter. The general service life for the healthy filter is about one year.
Troubleshooting: A comprehensive section on malfunction display codes (e.g., F1/F2 for temperature sensor issues, C5 for jumper cap issues, H6 for fan motor issues, U8 for zero-cross detection circuit issues, E6 for communication malfunctions) and flowcharts to diagnose and resolve common problems. It includes resistance tables for ambient, outdoor, and discharge temperature sensors to aid in diagnosis.
Removal Procedure: Step-by-step guide for disassembling the unit, starting from the front panel and proceeding to internal components like filters, horizontal louver, front case, water tray, electric box, evaporator, motor, and cross flow blade. A warning is included to wait at least 10 minutes after turning off power before disassembly.

The manual highlights the importance of proper installation and regular maintenance to ensure the unit's efficient and safe operation. All data provided is subject to change without notice.