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Summary of Contents for Hitachi HCWA21NEHH
- Page 1 – & OPERATION WIRED CONTROLLER MODEL HCWA21NEHH COOL HEAT AUTO Defrost RT. SET GROUP AUTO Purifier Mute Sleep Set back ALARM FILTER HO2020375A...
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Page 3: Table Of Contents
CONTENTS Safety precautions........................1 Wired Controller introduction....................3 Button introduction........................3 LCD Screen ..........................4 Basic Operation ........................5 Function Setting ........................6 Super mode ..........................6 Mute mode..........................7 Sleep mode ..........................7 Button Lock..........................7 Filter cleaning resetting ......................8 Set back function ........................8 Buzzer indicator selecting......................9 Back light setting........................9 Clock setting ..........................9 Clock correction.........................9 Back light setting........................9... -
Page 4: Safety Precautions
Safety precautions 1. Important Notice We pursue a policy of continuous improvement in design and performance of products. Company reserves the right to change the specifications without notice. We cannot anticipate every possible circumstance that might involve a potential hazard. No part of this manual can be reproduced without written permission. - Page 5 Safety precautions Please be sure to cut off the main power supply before opening the panel to repair. Please use specified cable. Connect it firmly to the connection terminals avoiding the shielding. Cable size Type Remarks Wired controller 24AWG Use shield cable in accordance with UL2547. Polar 4 core cable (0.21 mm )
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Page 6: Wired Controller Introduction
Wired controller introduction Wired controller AUTO COOL HEAT Defrost RT. SET GROUP AUTO Purifier LCD Screen Mute Sleep Set back ALARM FILTER Power Lamp Air conditioner ON: Lit brightly Air conditioner OFF: Not lit Built-in Infrared Signal Receiver Area Button Introduction Button Instruction Function... -
Page 7: Lcd Screen
Wired controller introduction LCD screen Mode Area COOL HEAT AUTO Defrost RT. SET GROUP AUTO Purifier Fan speed area Mute Other functions Sleep Left/Right airflow swing Set back Temperature Area ALARM FILTER Up/Down airflow swing Timer Area Fan speed area Timer area Other icons Ultrahigh fan speed... -
Page 8: Basic Operation
Press the “ ” or “ ” button to enter the temperature setting state. Each time “ ” or “ ” button is pressed, temperature setting increases /decreases by 1 1℃. ℉ Temperature setting range COOLING, HEATING, DRY, AUTO HCWA21NEHH: 16℃~30℃ (61℉~86℉) FAN ONLY Unavailable for setting 1. -
Page 9: Function Setting
Basic operation 5. Airflow swing setting Under the ON conditions or under the OFF conditions when TIMER ON function is enabled, press the “ ” button to adjust the airflow direction. The airflow direction setting will change in the following sequence by default: No display None Left/Right Airflow Swing... -
Page 10: Mute Mode
Function setting Mute mode The mute mode reduces the noise by changing the fan speed of indoor unit so as to keep quiet during operation at night. How to activate: In the COOLING/HEATING mode during appliance operation, press and hold " "... -
Page 11: Filter Cleaning Resetting
Function setting Filter cleaning resetting (available for models equipped with filter cleaning function; prompt only professional staff should operate this function.） When " " is displayed on screen, it indicates that the FILTER filter needs to be cleaned. Please contact professional staff to perform cleaning. After cleaning, press and hold “... -
Page 12: Buzzer Indicator Selecting
Function setting Buzzer indicator selecting Default buzzer is valid during operation. If you need mute operation, press “ ” button for 3s, the buzzer beeping 4 times indicates the setting has been successfully changed. If you need it returns to normal operation, repeat the steps above. -
Page 13: Single Timer On/Off
Function setting Single TIMER ON/OFF (invalid under weekly timer setting) TIMER ON set How to activate: During OFF condition, press and hold " " button for 3s until icon “ ” and clock setting are flickering. Press “ ” button to adjust the timer hour. Each time “... -
Page 14: Weekly Timer
Function setting Weekly timer Weekly timer can be used to set on/off time respectively for seven days a week. Air conditioner can be on/off in preset time every day, without manual control. The air conditioner can be on/off automatically before you wake up in the morning, back home from work or during sleep at night. - Page 15 Function setting When Timer on hour flickers, press “ ” (add button) or “ ” (minus button) to select the desired time. Each time button“ ”/“ ”is pressed, time Timer group select increases/decresases 1.After timer ON hour has been set, press “...
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Page 16: Maintenance, Troubleshooting And After-Sale Service
Maintenance, troubleshooting and after-sales service Maintenance Wipe the LCD or the body of the wired controller with a dry cloth. If the dirt on the surface cannot be removed, soak the cloth in neutral detergent diluted with water, squeeze the cloth tightly and clean the surface. Wipe the surface with a dry cloth. Do not use any thinner, organic solvents, or strong acid. -
Page 17: Wired Controller Installation
Wired Controller Installation Checking accessories Check that the following accessories are included with the unit before installation： Manual Quality certification Screw Controlling cable Connecting terminal 1 pc 2 pcs 2 pcs How to install 1.Selecting the Installation Location. Please select the installation location according to safety precautions . 2. - Page 18 Wired Controller Installation 4.Wiring of wired controller Single control Connect wired controller with indoor unit with attached controlling cable (4-pin). Group control Connect wired controller with indoor unit with attached controlling cable (4-pin), and connect with adaptor with RS485 controlling cable (2-pin, attached with adaptor). The quantity of adaptor required, which need to be prepared separately, is the same with that of the econdary controller.
- Page 19 Wired Controller Installation C. Connect the 2 controlling cables with attached connecting terminal. Controlling cable Controlling cable D. Connect RS485 controlling cable (2-pin) with adaptor(If group control is needed). Wire connector* RS485 controlling cable* A+: BK B-: BN attachedwiththe adaptor. Firmly fasten the connection cord after connection.
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Page 20: Upper Cover Assembly
Wired Controller Installation Upper cover assembly Align the upper cover with the hasp of lower cover of the wired controller, and then press the upper cover onto the lower cover. After installation, tear off protective sticker attached on the display of wired controller. Hasp Hasp Custom parameters... -
Page 21: Parameter Setting
Custom parameters. 1.Temperature limit setting The temperature set point range is (16-30)℃ (Model: HCWA21NEHH) by default. You can change the range when needed. Take HCWA21NEHH for example, in cooling mode, temperature adjustment range could be changed to (23-30)℃; in heating mode, it could be changed to (16-28)℃. - Page 22 Wired Controller Installation Setting method: During OFF conditions, press the “ ” or “ ” until icon “ ” appears, then press “ ” button for 3s to enter cooling temp. limit setting mode. Press “ ” or “ ” to adjust the lowest cooling temperature value. Press “...
- Page 24 Specifications in this document are subject to change without notice, in order that Hitachi-Johnson Controls Air Conditioning, Inc. may bring the latest innovations to their customers. Hitachi-Johnson Controls Air Conditioning, Inc. © 2020 Hitachi-Johnson Controls Air Conditioning, Inc.
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