This document is a user manual for the AIRREX HWC-19 Air Conditioner, a portable cooling unit designed for various applications. The manual provides comprehensive information on its operation, safety precautions, technical specifications, installation, and maintenance.
Function Description
The AIRREX HWC-19 is an air conditioner primarily designed for cooling. It offers three main operating modes:
- Cooling Mode: This is the primary function, providing cold air discharge. The unit operates when the room/spot temperature is higher than the set temperature and stops when it falls below.
- Dehumidifier Mode: In this mode, the unit focuses on removing moisture from the air.
- Fan Mode: This mode circulates air without active cooling or dehumidification.
The unit features a digital controller for easy operation and monitoring. It includes two discharge ducts for directing cold air. The HWC-19 is a water-cooled unit, requiring a connection to a tap water supply for its heat exchange process. Condensed water is also drained from the unit.
Important Technical Specifications
The AIRREX HWC-19 boasts the following key specifications:
- Model: HWC-19
- Cooling Capacity: 18,200 Btu/h (5.3 kW)
- Power Supply: 115Vac, 60Hz, 1Ph
- Dimensions (WxDxH): 17.5 x 22.5 x 42 inches
- Weight: 163 lb
- Power Consumption: 1.5 kW
- Current Consumption: 12.6 A
- Moisture Removal:
- MAX: 13.3 gal/day
- AHAM: 8.9 gal/day
- Refrigerant (R-410A): 1.32 lb
- Operating Range: 72°F DB 60%RH to 113°F DB 40%RH
- Power Cord: LCDI 5-15
The unit is ETL listed and Intertek certified, indicating compliance with safety standards.
Usage Features
The HWC-19 is designed for user-friendly operation with several convenient features:
Control Panel Functions:
- Power On/Off: A dedicated button for turning the unit on or off.
- Temperature Adjustment: Up (∧) and Down (∨) buttons allow users to raise or lower the set temperature. These buttons also adjust the 'off' timer.
- Mode Selection: A "Mode" button cycles through Cooling, Dehumidifier, and Fan modes.
- Fan Speed Control: "Low Mode" and "High Mode" buttons control the fan speed.
- Off Timer: Users can set a timer for the unit to run for a specific duration (0-24 hours) before automatically turning off. Intervals are 30 minutes up to 10 hours, then 1 hour up to 24 hours.
- Temperature Display: The digital display shows either the Room temperature or Spot temperature, as well as the set temperature and sleep time. It can display temperatures in Fahrenheit (°F) or Celsius (°C).
- Lock/Unlock Function: A security feature that allows users to lock the control panel to prevent accidental changes.
- Error and Warning Indicators: The control panel provides visual alerts for various issues:
- Water Full (tF): Indicates the water container is full, and the compressor will shut off.
- High Pressure (E1): Signals excessively high compressor pressure.
- Low Pressure (E2): Indicates excessively low compressor pressure.
- Sensor Problem (E3): Alerts to a short-circuited or cut thermistor.
- Anti Freezing (AF): Displays when the evaporator temperature drops below 28°F.
Safety Precautions:
The manual emphasizes several critical safety instructions:
- Use a dedicated 115V outlet with a rated capacity fuse and proper grounding.
- Do not use damaged cords, plugs, or loose outlets.
- Avoid touching the power plug with wet hands.
- Do not connect or extend power cords in the middle.
- Ensure the unit is placed on an even, stable surface and not leaned more than 30° when moving.
- Maintain at least 20 inches of space around the air intake for smooth airflow.
- Do not spray water or solvents on the unit.
- Do not insert fingers or objects into the blowing hole.
- Stop operation and contact the service center if strange sounds or smells occur.
- Do not operate the unit if water supply is stopped or leaked.
- The unit should be used indoors, away from direct sunlight, and in temperatures below 113°F.
Maintenance Features
Regular maintenance is crucial for the HWC-19's efficient operation and longevity:
Cleaning:
- Air Filters: Detach the air filters and clean them with compressed air or water.
- Heat Exchanger: Clean dust from the heat exchanger using compressed air or a vacuum cleaner.
Post-Cleaning and Storage:
- After cleaning, dry the inside of the unit thoroughly by blowing air for 3-4 hours.
- When storing the unit, pull out the power cord, wind it well, and fix it.
- Ensure no moisture or dust enters the unit during storage.
- If the unit will not be used for an extended period, close the water supply valve, discharge water from the line, and dry it.
Troubleshooting:
The manual includes a troubleshooting guide for common issues:
- Operation not starting: Check power plug, ON/OFF switch, fuse, circuit breaker, surrounding temperature (should be below 113°F), and voltage.
- Insufficient cooling: Check for clogged air filters or heat exchanger, obstacles near the air intake, correct temperature setting, and water supply.
- White vapor generation: This can occur in high humidity environments and is considered normal.
- Dew formation at discharge hole: This is a normal phenomenon due to moisture in the air changing into dew.
The AIRREX HWC-19 is manufactured by HEPHZIBAH CO., LTD. in Korea and distributed by Airrex USA. The product comes with a warranty, details of which are provided in the manual, covering manufacturing faults for a specified period. The manufacturer reserves the right to change designs and specifications for product improvement without prior notice.
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