MRC HU-24 User manual
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Mobile-type PTC Steam Humidifier for office or commercial space
HU-24
INSTALLATION AND OPERATION MANUAL
PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION
MRC.12.16
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Safety Caution
Be sure to read before use. Keep this manual handy for the users to consult at
any time necessary.
The cautions shown here are to ensure the safety in use of the humidifier and to
preclude any danger and damage to the users and others. What could
conceivably result from wrong handling is identified in the form of either
“Warning" or “Caution". They should both be observed strictly as important
points that pertain to safety.
WARNING
CAUTION
Matter that could cause death or
serious injury to human
Matter that could cause injury to
human or damage to property
WARNING
●Do not insert and removeAC plug with wet hands, it may cause electrical shock.
● The nominal current ofAC plug having more than 5Amust be used singly, not
combination use.
● Do not touch any electric circuit during power on especially by wet hands. It will get electric
shock.
● All of electric cable/wire should not be damaged, processed, pulled or forcibly bended. It will
cause electric leakage and make fire or electric shock.
● All of electric cables/wires should not bind or tie not to cause electric leakage or firing.
● When you have noted smoking or abnormal smell, shut off electric power source
immediately and also off the power switch of the unit. If you keep running the unit it may
cause fire or electric shock. Then please report it to the supplier immediately.
● Do not disassemble the unit except cleaning purpose and also do not modify the unit. It
may cause fire or electric shock.
●Do not splash any water on the unit. It may cause short circuit or electric shock.
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CAUTION
●Be sure not put hands, face close to the steam outlet port, it may cause getting burned.
●Do not move or shake the unit during the operation. It may cause electric shock or
leakage.
●Do not install or locate the unit where such as unstable or vibrating places. The units
may fall down and hurt the people around there.
●Do not install or locate the unit where dusty place , sun shine light exposing directly,
high temperature, close to fire.All are very risky for the fire of the unit.
●Keep open through around the electric plug to shut down the power easily at any
emergency cases.
●Use only specified electric power source and no other voltage required.
●Connect Ground without fail otherwise earth leakage breaker will not work.
●Before carrying out the cleaning works, cut off the power source, otherwise it may cause
electric shock.
●Before carrying out the cleaning works, cut off the power source, and wait till the
temperature get down in the water reservoir, otherwise, it may cause getting burned.
●Do not use extension cables, it may cause electric shock or fire.
●Drain off all water from the water tank and water reservoir if you stop the running for a
while. Otherwise, it cause the offensive odor created by some bacteria and it may affect
health.
●Use only clean water (R.O or Pure water) for the unit. Other liquid may cause trouble of
the unit and make fire or electric shock.
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2000
White line
Black line
Green line
Back
Power cable(VCTF-22 3core×2SQ)
CAUTION for Installation Location
1. Do not install or locate the unit where such as unstable or vibrating places and the unit
should be horizontally-supported.
2. Put the unit away to keep certain distance from surrounding area.
3.Steam comes out from the steam outlet port, it may invite errors in control mechanisms
installed near by the unit, and also may change the color of the furniture or wall.
4. Do not install or locate the unit where dusty place, sun shine light exposing directly,
high temperature, close to fire.All are very risky for the fire of the unit.
CAUTION for Electrical Work
1. Use only dedicated line for the humidifier to supply power and install ground fault
interrupter. (switch panel )
Power supply :AC230V, Rated power : 2.1kW.
2. Power source should be connected to white and black line of power cable and green line
should be connected to earth.
Electrical working drawing
Dotted line parts should be arranged by customer.
Electrical leakage breaker(AC230V-20A induced current 30mA)
AC230V 50/60Hz
Earth
White
Black
Green
unit
Humidifier
Earth
Intermediary terminal or high capacity socket
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Front
Air inlet port
Front
Titanium dioxide filter
Note on operation
Various kinds of the filters
1. Pre-Filter
The filters are installed at the back side of each air inlet ports on both sides of the unit to
protect the suction of dust. (Please refer to P14 for cleaning.)
2. Titanium dioxide filter
3 sheets of the titanium dioxide filter are installed inside the air inlet port on the left side
of the unit to give hygienical, odorless air and sterilize the bacteria and the virus. (Please
refer to P15 for cleaning.)
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1. Product overview
Front view
Water tank cover (on either side) Steam outlet port Handle
Clean air outlet port
Operation
buttons
Air inlet port
(on either side)
Front panel
Back view Adjuster
Accessory
Back side panel
Installation and
operation manual
Power cable
On the right side: built in humidity sensor
On the left side: built in air cleaning unit
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6
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2. How to remove the water tank cover
Push the unlock button situated on upper parts of both front and rear sides at the
hollow parts of the cover and remove it to the arrowed line showing in the below.
Unlock button
3. Supplying water
Pure or R.O water should be used.
1. Open the water tank cover, and pull out the water tank.
2. Remove the cap for the water tank, and fill up the pure or
R.O water in the tank.
3. Fasten the cap tightly and set back the water tank to the unit
and close the tank cover.
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4. Function of the display and operating elements
①. ON/OFF key (Power Switch) : Switch the unit On or Off.
②. Operating display : Shows current humidity and functions.
③. Set switch for setting humidity level : Set humidity level with switch ④
④. Setting humidity level : Set the humidity level up and down with pushing SET
switch ③at same time.
⑤. Ventilation switch : Switch the ventilation On and Off .
⑥. Heater output : Change for high power (2kW) or low power (1kW) with pushing
SET switch ③.
⑦. Sterilization switch : Switch the sterilization function On or Off .
⑧.Air cleaning switch : Switch the air cleaning function On or Off.
⑨. Lock switch : Child lock for all function by pressing the button for 3 seconds.
⑩. LED for water supply : When the water tank gets empty, LED lights with alarm.
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5. Operation
Notes on operation :
1. Fill the pure or R.O water in the water tank.
Open the tank cover and remove the water tank then fill the pure or R.O water into
tank, and set back it to the unit to according to P.6.
2. Power Supply
2-1 After finishing electric work according to P.3, open the tank cover and pull the back
side panel to the direction of arrow as shown below.
2-2 Push the electrical leakage breaker ‘’On’’.
Close the back side panel.
2-3 Switch on the power switch on the display panel.
Electrical
leakage
breaker
Back side panel
2-4.An alarm will sound when the power is supplied, then the display shows the
standby operation status as shown below.
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Operating the control unit.
1. Press the On/Off key.
An alarm will sound and show the current humidity on the display panel.
2. Set the required humidity level in %.
- Push the SET switch on the panel, it shows the humidity level setting by last time.
- If you require other humidity level, push UP or DOWN switch with pushing SET
switch.
Factory setting: 50%
Setting range : 0-99%
- If you disengage a finger from SET switch, then the display shows current humidity.
3. Start of steam generation
When the current humidity is lower than the setting humidity, the unit is activated and
starts generating the steam after about 10 minutes.
4. Shutdown the unit
By pushing the’’ On/Off ‘’switch, an alarm will sound and indicate ‘’-----‘’ in the display
then the unit will shutdown in about 10 minutes after run of the ventilation.
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Other functions
1. Ventilation switch
By the ventilation switch, it can spread the steam from the outlet port.
Please set the switch ‘’On’’ under the normal operation.
Note : Be sure not to put hands, face close to the steam outlet port, it may cause
getting burned. If you operate the unit with ventilation switch ‘’OFF’’ the hot
steam comes out from steam outlet.
2. HIGH / LOW switch for heating power.
Switch to change the humidifying heater to high or low.
Can change the humidifying heater high or low by pushing this switch with pushing
SET switch at the same time. LED display shows high in the left and low in the right
sides.
High setting Low setting
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3. Air Cleaning switch
To clean air.
Clean air will be supplied in the room from air sanitization outlet port.
4. Switch for sterilization
To sterilize air.
Sterilized ozone is emitted inside the room from the air sanitization outlet port.
5. Switch for Rock
Child lock for all function by pressing the button for 3 seconds.
The lock is released by pressing another 3 seconds.
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Fault indication
1. Warning for water supply.
1-1 When the water tank gets empty, ‘’FEED WATER’’ is shown in the display with
alarm and stop the unit automatically.
1-2 Fill water in the tank, and set back to the unit, then Error LED in the display and
alarm are disappeared then the unit restarts.
Note : Warning alarm can be switched off by pushing lock switch.
2. Exchange the UV lamp for air cleaning.
2-1 When UV lamps built in the air cleaning unit has exceeded the life time and no
lighting up the UV lamp, LED lights and showing the error message in the
display with alarm.
2-2 Replace the UV lamps, error message is disappeared after replace the UV
lamps, and restart the air cleaning operation. ( please refer P16 for
replacement of UV lamp )
* Warning alarm can be switch off by pushing the lock switch.
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6. Cleaning the unit
CAUTION
Drain off all water from the water tank and water
reservoir if you stop the running for a while.
It cause the offensive odor created by some bacteria and it may affect
health.
Before carrying out the cleaning works, cut off
the power source.
It may cause electric shock.
Before carrying out the cleaning works, cut off
the power source, and wait till the temperature
get down in the water reservoir.
It may cause burn injury.
WARNING
Do not splash any water on the unit.
It may cause short circuit or electric shock.
Do not maintain the unit while in use or shortly
after operating.
It may cause burn injury.
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4
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1 Cleaning the water tank.
When the inside of the tank gets dirty, put some water in the tank and close the cap
firmly, and wash by shaking.
2 Cleaning the pre-filter
2-1 Pull out the handle under the air inlet ports as shown below sketch and take out air
inlet ports.
Air inlet port
2-2 The pre-filter is inserted at the back side of the air inlet port.
Pull out the pre-heater, and take up dust by vacuum.
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Air inlet port
Pre-filter
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Front
Titanium dioxide filter
3 Cleaning the Oxidized Titanium Filter
3-1 3 sheets of oxidized titanium filters are installed inside the air inlet port at the left
side of the unit. Take out the air inlet port and pull out the filters.
3-2 Wash oxidized titanium filters lightly in water and dry in the sun, then back them to
the unit.
Note: There is no opposite sides to the same oxidized titanium filter.
①Wash in the water.
②Dry in the sun.
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Front
Titanium dioxide filter
4 Replace UV lamp
4-1 3 sheets of oxidized titanium filters are installed inside the air inlet port at the left
side of the unit. Take out the air inlet port and pull out the filters.
4-2 UV lamps are plugged in the sockets, so pull out the lamps as shown the below, and
replace them with new lamps.
Note : There is no polarization setting for the UV lamps.
Be sure to plug the lamps firmly into the sockets.
4-3 After replace the UV lamps, set the oxidized titanium filters on the position and fix
the air inlet port.
Note : There is no opposite sides to the same oxidized titanium filter.
UV lamp
Socket
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5 Replacing the lamp for sterilization
5-1 Open the water tank cover on the left side of the unit, and pull out the tank as
shown the below.
5-2 Loosen 2 screws on the side cover, and remove the side cover as shown the below
sketch.
Side cover
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5-3 Pull out lamp unit for sterilization from ventilation duct inside the unit, and
disconnect the lead from connector.
Connector
Ventilation duct
Lamp unit
5-4 Replace the lamp unit for sterilization with new one as set.
5-5 Installation of the unit follows the reverse sequence.
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