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This document is an installation and maintenance manual for an LG Single Package Type Air Conditioner.
This air conditioner is designed to provide indoor cooling and dehumidification. It is a single-packaged unit, meaning all components are housed within one enclosure, suitable for outdoor mounting with vertical condenser discharge. The unit can be located either at ground level or on a roof. It is designed for optimal performance, reliability, flexibility, easy installation, serviceability, and affordability.
The manual provides specifications for several models: AK-C3608H00, AK-C4208H00, AK-C4808H00, and AK-C3609H00. Key technical specifications include:
The unit features standard components like a R410A refrigerant system, factory-wired single point power input, scroll compressor, high pressure & low pressure safety switches, power controller, thermostatic expansion valve, condenser fans with propeller type direct driven through vertical discharge, condenser & evaporator coils made of copper tubes and aluminum fins, weather resistant steel cabinet, 2" disposable air filter, anti-corrosion heresite treatment on condenser coil HEX, hydrophilic coating on evaporator HEX, and IP 55 Class F for blower motor.
Optional features include electric heater, overload external protection for blower motor, anti-ice thermostat, copper fins for evaporator & condenser coil, stainless steel drain pan, filter differential pressure switch, compressor alternating switch, hour run meter, fan cycling switch, rotolock compressor, circuit breaker (MCB) for compressor & blower motor, pump down system, dual adjustable pressure switch, hot gas bypass (with solenoid), pressure gauges, oversized blower motor & alternate drive package, PCB controller, advanced microprocessor controller, adjustable voltage monitor, UV light, adjustable pressure switch, VFD for blower motor, soft starter for blower motor, volt free contacts for compressor & blower ON/OFF/TRIP status, fire alarm interlock, crankcase heater for compressor, sight glass, and 2" synthetic filter.
The manual emphasizes energy-saving tips, such as avoiding excessive indoor cooling, blocking sunlight, keeping doors and windows closed, adjusting airflow direction, speeding up the fan for quick cooling/warming, regular ventilation, and cleaning the air filter every two weeks.
The unit is controlled via a thermostat, with detailed instructions for installation and operation of the thermostat provided. The thermostat supports conventional gas, oil, electric (mV and 24V), heat only, cool only, or heat/cool systems, as well as heat pump (air source or geothermal) with auxiliary heat. It has an installer menu for configuring various settings like outdoor equipment type (AC or HP), number of stages, indoor equipment type (gas furnace, electric furnace, fan only), dedicated emergency heat, O,B or 3-wire zone valve selection, heat/aux/cool cycle rates, compressor lockout, max/min heat/cool limits, temperature display units (°F or °C), temperature display adjustment, and continuous display light. A user menu is also available for basic settings.
The manual outlines a comprehensive preventive maintenance schedule, recommending checks every 6 and 12 months for the first four years.
Monthly/Bi-monthly (6 months) checks include:
Belt Tension Testing Procedure: The manual provides a detailed procedure for checking and adjusting belt tension using a tension checker. This involves measuring the belt span, calculating the required deflection, setting the tension checker, applying force, and reading the force scale. Proper tensioning is crucial for optimal performance and belt longevity. New drives require tensioning at maximum deflection force and re-checking during the first day of operation.
Serviceman Maintenance: A qualified serviceman should perform maintenance at least once a year, or more frequently if conditions warrant. This includes checking the cleanliness of the indoor fan, cleaning condenser coils, checking safety controls for mechanical cleaning, checking electrical components and wiring for possible replacement or connection tightness, cleaning the condensate drain, inspecting duct connections for sound and sealing, inspecting unit mounting support, and inspecting the unit for any obvious deterioration.
Safety during Maintenance: It is crucial to disconnect the power supply and allow all rotating parts to stop before servicing the unit. For electrical work, only authorized electrical engineers should perform the work in accordance with national wiring standards. A circuit breaker should be installed between the power source and the unit. When working on the thermostat, ensure power is disconnected to prevent electrical shock or equipment damage.
Installation Guide at the Seaside: Special considerations are given for installations near the seaside. Air conditioners should not be installed in areas with corrosive gases or direct exposure to sea wind to prevent corrosion and malfunction. If installation near the seaside is unavoidable, a windbreak (strong enough like concrete, taller and wider than the outdoor unit, with at least 70 cm space for airflow) should be used, and additional anticorrosion treatment on the heat exchanger may be necessary. Regular cleaning of dust or salt particles stuck on the heat exchanger with water is also recommended.
General| Brand | LG |
|---|---|
| Model | AK-C3608H00 |
| Category | Air Conditioner |
| Language | English |
