NCCO EC920 Bedienungsanleitung

Operation Manual

NCCO Air Treatment Unit

Model No.: EC920

Thank you for choosing RHT product.

Please read this manual prior to operation and maintenance work.

Please read the “Safety Instructions” prior to operation.

Injury or property loss may occur if not operated according to this manual.

Please retain this manual for future reference. (Retain manual in reserve)

Working staff must have undergone professional training provided by manufacturer prior to

installation and maintenance work.

This unit can be used by children aged from 8 years and above and persons with reduced

physical, sensory or mental capabilities or lack of experience and knowledge if they have been

given supervision or instruction concerning use of the unit in a safe way and understand the

hazards involved. Children shall not play with the unit. Cleaning and user maintenance shall not

be made by children without supervision.

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or

similarly qualified persons in order to avoid a hazard.

Prior to cleaning or maintenance, the unit must be disconnected from the supply mains.

CONTENT

SAFETY INSTRUCTION 3

PARTS AND COMPONENTS 4

INSTALLATION GUIDE 5

REMOTE CONTROL 7

OPERATION GUIDE 8

FILTER CARE AND REPLACEMENT 10

TROUBLE SHOOTING 11

PRODUCT SPECIFICATION 12

DEAR VALUED CUSTOMER,

Thank you for your purchase of the EC920 NCCO Air Treatment Unit. For your safety and to optimize

the operating condition of this unit, please read this manual prior to operation and keep it for future

reference. (Retain manual in reserve)

SAFETY INSTRUCTION

Please read the following instruction prior to operation.

WARNING:

**WORKING STAFF MUST HAVE UNDERGONE PROFESSIONAL TRAINING PROVIDED BY

MANUFACTURER PRIOR TO INSTALLATION AND MAINTENANCE WORK**

1. Risk of electric shock may cause injury or death.

2. Disconnect the power supply before any service or care maintenance work is carried out.

DURING OPERATION:

1. Please do not attempt to repair unit at own discretion. Please contact manufacturer or an

authorized service provider.

2. Do not insert anything between air outlet blades to prevent injury caused by fan damage.

3. Never spill any kind of liquid into unit. Should this happen, please immediately disconnect power

supply and contact the authorized service provider.

4. Do not place any object over unit during operation.

5. If you do not intend to use the remote control for a long period of time, please remove the battery.

6. If power cord is damaged, for safety, it must be replaced by manufacturer, the authorized service

provider or a similarly qualified personnel to avoid hazard.

7. The unit must be installed according to the local electrical rules.

8. The unit is designed with a special protection function: after continuing operation for 8 hours, it will

enter into Sleep Mode for 30-minute where all indicators will be extinguished. Then, the unit will

restart automatically after the 30-minute sleep.

9. If there is no action performed after unit has operated for 1 minute, all indicators and the display

screen on control panel will be extinguished, while other functions still normally operate. To wake

indicators up, please press any one of the buttons.

DISPOSAL:

1. Please recycle or dispose of the packaging material in an environmental friendly way.

2. Do not dispose of unit as unsorted municipal waste, use separate collection facilities. If unit is

disposed in landfills or dumps, hazardous substances may leak into underground water and get

into the food chain to damage environment.

OTHERS:

1. The unit is for indoor use only. Maintain good air circulation and make sure that there is enough

fresh air when using unit.

2. The unit is not intended for use by persons with reduced physical, sensory or mental capabilities,

or lack of experience and knowledge, unless they have been given supervision or instruction

concerning use of the unit by personnel responsible for their safety.

3. Juveniles shall be supervised by parents to ensure that they won’t mishandle the unit.

4. Warm air may release from air outlet when unit is operating at the first time. This is normal due to

catalytic oxidation taking place inside NCCO Reactor. To optimize the capacity of the unit, leave

unit operating for 15 minutes at the first time of operation.

5. When operating the unit, please make sure there is at least 1 air change per hour.

Air Grid

Screw Covering

Air Inlet

Control Panel LED Indicator

Air Grid

PARTS AND COMPONENTS

ILLUSTRATION DIAGRAM

Control Panel LED Indicator

Eco Mode Indicator

Display Screen

ON / OFF Indicator

Air Inlet

Air Outlet

Leading Screw Installation Location

Air Speed Reduce Indicator

Air Speed Increase Indicator

Leading Screw Installation Location

INSTALLATION GUIDE

FIRST-TIME OPERATION:

1. Please check installation site prior to installation work. The unit

is better to be installed near to the source of pollutants or user.

2. The installation site shall have enough area for unit to have a

smooth airflow.

3. The unit is not intended for installation near the exhaust air duct

or window.

POWER SUPPLY:

1. Power supply shall be available at installation place. Make sure

that power supply frequency is correct.

STANDARDS AND REGULATIONS:

1. Correctly install unit in accordance with the government

regulations.

2. For safety concerned, it is not recommended to install unit near

to the fire alert system.

3. Install electric cord and circuit in accordance with safety

standards and regulations of electric engineering.

INSTALLATION (PLEASE FOLLOW THE PROCEDURES):

1. Before removing the packaging material, move unit close to the

installation site.

2. First open the two Screw Coverings at the left side of the Air Inlet

by hand or the cross screwdriver (Figure 1), then loosen the

inside screws by cross screwdriver to open Air Inlet Cover

(Figure 2).

Note: There are two safety strings at the sides of the machine to

connect the machine body with Air Inlet Cover. Loosen

screw to take out Air Inlet Cover.

3. After opening Cover, take out HEPA Filter from unit and remove

the packaging of HEPA Filter.

4. Remove the packaging of NCCO Reactor.

5. Reassemble NCCO Reactor and HEPA Filter into unit (Figure 3).

6. First install one group of filters--NCCO Reactor and HEPA Filter.

The snapping sound indicates the filters have been correctly

installed.

7. Install other three groups of filters with the same procedures.

8. After ensuring filters have been correctly installed, align with and

fit the buckles at the two sides of the back cover. Fasten screws

and close the Screw Coverings by cross screwdriver. Then,

install the unit on ceiling (Figure 4).

9. Apply four expansion screws of Ø8mm on the pre-installed

location. The four screws should be applied just as shown at

Figure 5. Each screw should have a holding strength of at least

40 kg.

10. Install the unit on ceiling and the screws shall be at the four

leading screws. Make sure the unit is at least 2 m from the floor.

Firmly fasten all screws to avoid screws from coming loose

during operation.

11. Connect the power cord with power supply for checking.

Figure 1

Figure 3

Figure 2

INSTALLATION RECOMMENDATION:

It is recommended to install two insurance steel wires at the kitty corner of leading screw (Figure 5) for

steadiness.

DISASSEMBLY (PLEASE FOLLOW THE PROCEDURES):

If would like to disassemble unit, first take off the unit from ceiling by loosening leading screws via

screwdriver. For other steps, please refer to the operations at Installation Guide.

ATTENTION:

**At least two operating personnel shall hold the unit when disassembling equipment to avoid it from

falling to the floor when taking off unit from leading screws.

PARTS (OPTIONAL):

There is optional parts for EC920 as remote system control and other functions. For more details,

please contact manufacturer or the authorized service provider.

Figure 4

Figure 5

REMOTE CONTROL

INSERT (OR REPLACE) THE REMOTE CONTROL BATTERY:

1. Remove the battery tray from the remote control in the direction of

the arrows that shown at the back.

2. Insert a new lithium battery in correct polarities.

3. Slide the tray back until clicking into place.

NOTE:

1. Use 1 x 3V lithium battery of CR2025.

2. If battery has not been used for 6 months, it may lose the capacity

of supplying power.

3. If you do not intend to use the remote control for a long period of

time, please remove the battery.

REMOTE CONTROL BUTTONS INSTRUCTION

1. ON / OFF Button

2. Eco Mode Button

3. Air Speed Reduce Button

4. Air Speed Increase Button

5. Wind Up & Down Button

6. Timing Button

⑥

③

⑤

②

④

①

OPERATION GUIDE

1. ON / OFF

ON: The unit will be Auto Power On after connecting with power supply. For the first-time operation of

the unit, the air speed is at 03.

OFF: Press ON / OFF button during operation to turn unit off.

2. OPERATION INSTRUCTION

2.1. AIR SPEED ADJUST BUTTON

Press the buttons of Air Speed Reduce /Increase to adjust air speed. Air speeds are as

follows: 01 - 10 and SS.

2.2. WIND UP & DOWN BUTTON

Press the button to lock the wind direction and stop the movement of air grid if requiring to fix the

swing-flap angle. Press the Wind Up & Down Button again to resume the swing-flap mode.

2.3. TIMING BUTTON

Press the Timing Button ,where pressing once to set time with 1 hour , twice with 2

hours and so on to 9 hours as the longest timing. One more press after the timing of 9

hours to set with 0 hour for exiting the timing function.

2.4. ECO MODE BUTTON

It is recommended to select Eco Mode during sleep time, where “Eo” shows at display screen.

When entering into Eco Mode, the air speed will automatically adjust to 03, deaden speed sound and

dim all indicators.

Exit: Only need to press Eco Mode button for exiting Eco Mode and turning back to Air Speed Mode.

2.5. SS MODE

Press the Air Speed Increase Button to enter into SS Mode when the air speed is at 10. It

is recommended to select this mode to treat a seriously contaminated environment at a short time.

Press the Air Speed Reduce Button to turn back to Air Speed Mode, followed by the default air

speed at 10.

2.6. FILTER INSTALLATION SUGGESTION

When HEPA Filter or NCCO Reactor is not correctly installed or has not been installed, “Beep Beep”

sound is heard from unit and “EE” displays at control panel. Unit does not operate.

Correct Operation: Disconnect power supply, open unit cover to re-install Filter or Reactor. “Beep Beep”

sound will stop and unit will resume to operate after correct installation.

2.7. HEPA FILTER REPLACEMENT TIMER SETTING

Default HEPA Filter replacement time is 3,000 hours.

HEPA Filter Replacement Time Reminding: When the countdown timer has reached less than 100

hours, there is a reminding of Filter replacement where under the Power-On state, “HP” displays at

control panel once every 5 seconds and the “Beep Beep” sound will be heard from unit for 10 seconds.

The blower will operate normally during the time reminding. After replacing Filter, connect with power

supply but do not turn on unit. Then, long press the ON / OFF Indicator for 10 seconds and the

clicking sound will be heard from unit. Next, press the Air Speed Reduce Indicator , and “HF” will

display at the control panel. Unit automatically turns off after 5 seconds where the reminding of HEPA

Filter Replacement will stop.

2.8. NCCO REACTOR CHECKING TIMER SETTING

Default NCCO Reactor checking time is 11,000 hours.

Time Reminding of NCCO Reactor Checking: When the countdown timer has reached less than 100

hours, there is a reminding of Reactor check where under the Power-On state, “nC” displays at control

panel once every 5 seconds and the “Beep Beep” sound will be heard from unit for 10 seconds. The

blower will operate normally during the time reminding. After checking Reactor, connect with power

supply but do not turn on unit. Then, long press the ON / OFF Indicator for 10 seconds and the

clicking sound will be heard from unit. Next, press the Air Speed Increase Indicator , and “nF” will

display at the control panel. Unit automatically turns off after 5 seconds where the time reminding of

NCCO Reactor Checking will stop.

2.9. POWER DOWN MEMEORY FUNCTION

When unit is running, if user presses the ON / OFF Indicator, ON / OFF Button or uses the wire

controller to turn off unit, and presses them again to turn on unit, the unit will return to the operation

mode before Power Off.

When unit is running, if user deliberately disconnects power supply and connects power supply later on,

the unit will be Auto Power On and return to the operation mode before power down (if the unit has

been turned off before user deliberately disconnects power supply, and it is reconnected with power

supply later on, the unit will be Auto Power On and return to the operation mode before Power Off).

FILTER CARE AND REPLACEMENT

1. Filter lifetime will vary depending on the environment, operation and location of the unit.

2. To maintain optimal operating condition of the unit, only use the recommended filter.

3. Before disassembling the unit, disconnect the power supply.

4. When the NCCO Reactor needs to be replaced, it is also recommended to replace the

HEPA Filter.

HEPA FILTER COLOR CHANGING INDICATOR:

HEPA Filter Surface Color

No need to Replace

Replacement is Recommended

Replacement is Required

RECOMMENDED FILTER CLEANING AND REPLACEMENT CYCLES AND METHODS:

*The filters cleaning and replacement cycle may vary depending on the operating environment.

**If the HEPA filter has not been replaced periodically or it has been damaged, and the surface of NCCO

Reactor is covered with dust or oily substances after disassembling, the removal capacity of the NCCO

Reactor may be badly reduced and should be replaced.

CLEANING AND MAINTENANCE:

Always disconnect power supply prior to filters cleaning or replacement.

Filter capacity may be reduced without periodical cleaning of Pre-Filter.

1. Clean Machine Body

Use soft and dry cloth to clean the unit.

Tips: Available to use damp cloth but do not use cloth made of abrasive materials.

2. Clean Air Inlet and Outlet

Use soft brush or vacuum cleaner to clean air inlet and outlet.

3. Clean Pre-Filter

Use soap or detergent to clean Pre-Filter (Dry Pre-Filter off before

reassembling Filter into unit).

WARNING:

NEVER RINSE OR SOAK STATIC FILTER, HEPA FILTER OR NCCO

REACTOR WITH WATER.

Filter

Cycle

Method

Pre-Filter

Every 2 - 4 weeks*

Clean

Static Filter

Every 2 - 3 months*

Replace

HEPA Filter

Every 6 - 12 months*

Replace

NCCO Reactor

Available to sustainable use**

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