Mist MRO002 User manual

Instruction Manual
Please read and save these instructions.
Reverse Osmosis System
MRO002

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation. Any changes or modications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.

Contents
Installation Instructions
Before Installation............................................................................................................................................................................................................................1
Parts List ................................................................................................................................................................................................................................................1
Product Introduction ....................................................................................................................................................................................................................2
Installation Sample.........................................................................................................................................................................................................................3
Installation Tips .................................................................................................................................................................................................................................3
Installation Steps..............................................................................................................................................................................................................................4
Step 1: Connect to the Cold Water Supply......................................................................................................................................................................4
Step 2: Install the Drain Saddle ...............................................................................................................................................................................................4
Step 3: Install the RO Faucet.....................................................................................................................................................................................................5
Step 4: Connect Tubing ...............................................................................................................................................................................................................5
Step 5: Start up the System .......................................................................................................................................................................................................6
Filter Replacement Schedule...................................................................................................................................................................................................6
Filter Life Reminder.........................................................................................................................................................................................................................6
Filter Replacement Guide...........................................................................................................................................................................................................7
Circular Fresh Water Flushing .................................................................................................................................................................................................7
Malfunction Display.......................................................................................................................................................................................................................7
System Maintenance.....................................................................................................................................................................................................................8
Troubleshooting...............................................................................................................................................................................................................................9
Limited Product Warranty..........................................................................................................................................................................................................10

1
Installation Instructions
Specifications
To achieve optimal performance, it is highly recommended that the system be used only within these operational
parameters.
NOTE: If you are using well water as the source, please ensure that the feed water has been through a pre-ltration
system.
Before Installation
MRO002
17.1"*5.5"*14.8"
14.5-87 psi/0.1-0.6 MPa
41-100 °F / 5-38 °C
Municipal Tap Water
Input 110-240 V
Output 24 V
50/60 HZ
400 G
Model
Size(L*W*H)
Feed Water Pressure
Feed Water Temperature
Feed Water Requirement
Rated Frequency
Max Daily Production Rate
Power Specication
Preinstalled
MRF2
Parts List
a
b
c
d
e
g
f
h
j
k
l
Required Tools
• Variable speed drill • Screwdriver • Adjustable wrench, pliers
• Utility knife or scissors • Flashlight • Towel
• Drill bit: 1/4" (for drainpipe), 1" (for faucet hole)
i
RO ltration unit
Front cover
Feed water adapter（3/8”and 1/2”x1）
Inlet water tubing（white tubing）
a
b
c
d
MCF1 lter
MRF2 lter
e
DescriptionPart
RO faucet x1 set
Pure water tubing（white tubing）
Drain water tubing（red tubing）
Teon tape x1
Drain saddle x1
Lock clips x4
l
f
g
h
i
k
j
DescriptionPart

• When the system is ushing, the ltering indicator light ashes.
• When the system is making water, the ltering indicator turns steady blue.
2
Product Introduction
Filtering indicator
Filter life indicator
• The lter life indicator on the RO ltration unit and the lter service life indicator on the RO faucet display blue
when the lter life is normal.
• When the remaining life of the lter is less than 15 days or 40 gallons, the lter life indicator and the lter service life
indicator turn purple and the system beeps two times whenever the faucet is turned on.
• When the life of the lter has expired, the lter life indicator and the lter service life indicator turn red and the system
will keep beeping every time the faucet is turned on. Please replace the lter as soon as possible.
Filter life indicator
PURE DRAIN INLET
Filtering
indicator
Filter service
life indicator
TDS indicator
Power
indicator
Can TDS indicate the water quality?
TDS indicator
· When the TDS of ltered water is lower than 100 ppm, the smart faucet displays blue.
· When the TDS of ltered water is higher than 100 ppm and lower than 150 ppm, the smart faucet displays purple.
· When the TDS of ltered water is higher than 150 ppm, the smart faucet displays red.
NOTE: TDS refers to Total Dissolved Solids, including all minerals such as sodium, calcium, magnesium, etc.
TDS level does not fully indicate the quality of the water.
“PURE” water port
Connects with polyethylene (PE) tubing
“DRAIN” water port
Connects with polyethylene (PE) tubing
“INLET” water port
Connects with polyethylene (PE) tubing
f
g
h
Power indicator
The indicator light is always on when the system is powered on.

3
How to Drill a Hole in Your Sink or Countertop (Optional)
Installation Sample
Installation Tips
Cold
Power
RO FaucetKitchen Faucet
Hot
Inlet Water Tubing
Feed Water Adapter
Pure Water Tubing
Drain Water
Tubing
NOTE: Conrm if there is an existing hole available to install the RO faucet. If not, drill a hole according to the
following steps.
There is also a reference sticker included to help you drill the faucet hole. Remember to wear safety glasses to
protect your eyes while drilling.
a. Choose a diamond core bit for granite or a carbide drill bit for stainless steel. Do not use a hammer drill on natural
stone, glass or ceramic.
b. Press the sticker onto your sink or countertop where you want the hole to be located, and drill the hole the same
diameter (1”) as the sticker.
c. To help guide the bit make an indent with a center punch on a stainless-steel sink before drilling.
d. Be careful when drilling on a porcelain sink, as it can be easily chipped. Apply downward pressure rmly on the bit
until you break through the surface.
e. Starting at the lowest speed, hold the drill straight with rm pressure to prevent the bit from walking on the
counter.
f. Once you break through the surface, swirl the drill a little to apply pressure in a circle evenly.

Step 1: Connect to the Cold Water Supply
CAUTION: DO NOT CONNECT THIS WATER LINE TO A HOT WATER SUPPLY LINE. The water supply to the unit MUST
be from the COLD WATER LINE. Using HOT WATER will severely damage your lters.
a. Turn o and then disconnect the current cold water supply line.
b. Connect the feed water adapter to the cold water supply line.
c. Twist the cold water supply line clockwise onto the feed water adapter until it is securely connected.
NOTE: An extra adapter nut is included on the feed water adapter (B) allowing it to attach to either a 3/8 in. or 1/2
in feed plumbing line.
4
Step 2: Install the Drain Saddle
a. Stick the foam seal on the inside of the front plate of the drain saddle. Ensure that the hole in the foam seal is
aligned with the hole of the front plate.
NOTE: It is recommended that the drain saddle be installed on the vertical portion of the drainpipe.
b. Choose a spot on the drainpipe that is convenient for installing the drain saddle and drill a 1/4” hole in the
drainpipe. Be sure not to penetrate the opposite side of the pipe.
c. Position both halves of the drain saddle on the drain pipe with the saddle’s opening aligned over the drilled
hole, and insert your drill bit through the saddle and the drilled hole to ensure proper alignment. Tighten the
screws of the drain saddle in place as shown.
d. Insert a quick connect tting into the hole in the drain saddle, then insert the drain water tubing [circle h] rmly into
the quick connect tting and use a lock clip to hold the tubing in place.
Installation Steps
3/8" Cold Water Pipe 3/8” INPUT
Water Tubing
3/8” INPUT
Water Tubing
Washer
Feed Water Adapter
Cold Water Supply Valve
Unscrew
Unscrew
1/2" Cold Water Pipe
Front plate
Foam seal
Lock clip
e
e
j
j
k

b. Connect the three tubes ( , , and ) to the back of the RO ltration unit ( ) as shown.
To disconnect:
• Remove the blue lock clip from the tting.
• Use your thumb and index nger to press down the lock
sleeve. Use your other hand to pull out the tubing from the
tting.
NOTE: Please do not pull out the tubing directly without
rst pressing down on the lock sleeve, as otherwise the
tting will be damaged and leakage will occur.
There is an existing mark at the end of the tubing for you to
conrm if the tubing is fully inserted into the tting. Please push
the tubing into the tting until it reaches the mark on the tubing
(about 0.8“). Put the blue lock clip on the tting to lock the tubing
in place and prevent it from falling o.
NOTE:
• If the tubing is not fully inserted, no seal will be created and
leakage will occur.
• If the tubing is too long, cut it to a suitable length with a sharp
utility knife or scissors. Cut the tubing squarely and cleanly.
5
Step 3: Install the RO Faucet
Step 4. Connect tubing
a. How to Use the Quick-Connect Fittings?
To connect:
Mark for
full insert
Cut cleanly and squarely
c. Use locking clips to secure the tubes.
a
a. Insert the faucet spout into the faucet body.
b. Insert the faucet stem into the faucet base, then insert the faucet
stem through the hole in the countertop.
c. Under the sink, slip on the other parts in the order shown in the
diagram.
d. Insert the pure water tubing into the quick-connect tting
fully and rmly, using the clip to lock it into place.
g
fgh
k
Mounting Washer Countertop
Nut
Faucet Spout
Quick-Connect
Faucet Body
Faucet Base
Faucet Stem
Lock clip
gf
h

6
Filter Replacement Schedule
Filter Life Reminder
Status Remaining
Life (Day)
Remaining
Capacity (G)
Indication
Light Smart faucet indicator
Normal
Pre-warning
>15 >40 Blue
≤15 ≤40 Purple
Warning ≤0 ≤0Red
Step 5. Start up the system
a. Turn on the cold water supply. Check for any leaks in the system.
b. Insert the faucet power cord which is connected to the faucet into the“FAUCET” connector at the back of the the
RO ltration unit housing and tighten the nut.
c. Insert the unit’s main power plug into the socket.
NOTE: If the system can’t be powered on after you insert the power plug, check whether there is power owing
to the socket under the sink, as this mostly occurs when the power under the sink is powered o. Also, check to
ensure that the power plug is plugged fully and correctly into the socket. To test if there is a problem with the system
itself, just pick up the system and try another power outlet.
Please contact us if the system can’t be powered on and we will help determine the source of the problem.
d. After the rst power-up, the system will beep and then start an automatic ve-minute ush; when the system is
ushing water, the faucet TDS indicator ashes red. After ve minutes, turn on the tap and let the system continue
ushing for an additional 30 minutes until the ltering indicator and the faucet TDS indicator change from ashing to
a constant light.
NOTE: Do not drink the water when the system is ushing.
Be sure to carefully check the tightness of each part of the system while ushing. Check and ensure all tubing is
installed correctly and completely. Make sure there are no leaks at the joints, ttings, valves and tubing connections.
There are convenient electronic lter indicators on the front panel and faucet screen that will notify you by change
of color when it is time to perform routine lter replacement. Be sure to reset the lter life indicator every time you
replace a lter (see next page for instructions).
Removes mud, sand, rust, suspended materials, residual chlorine,
and abnormal avor from water, improving the taste.
Filter Type Replacement Schedule Function
1100G/12 months
2200G/24 months Can eectively reduce the presence of substances including arsenic,
lead, uoride, heavy metals, etc.

Turn o faucet and wait for 30 seconds to fully release the pressure on the system. The lter can be replaced without
turning o the water source or power supply.
a. Twist the lter that needs to be replaced counterclockwise;
b. Remove wrappings and protective cap from the new lter;
c. Insert the new lter into the corresponding lter hole, align the lter handle horizontally with the“lock”mark on the
housing and then rotate 90° clockwise until the lter handle is aligned vertically with the “lock” mark on the housing.
You may hear a click when the lter is in place.
d. After the lter is in place, press and hold the corresponding lter reset button for 5 seconds until you hear the
system beeps. The lter is now successfully reset.
7
Malfunction Display
Filter Replacement Guide
How to Flush the Filter After Replacement:
For MCF1 lter: The system starts ushing automatically for ve minutes, with the ltering indicator ashing blue.
For MRF2 lter: The system starts ushing automatically for ve minutes and then the faucet must be opened to run
for 30 additional minutes, the ltering indicator will ash blue during the ushing process.
The fresh water ushing function is designed to ensure that the water coming through the system is always fresh and
healthy. After the system stops ltering water for 5 minutes, the system will automatically circulate the fresh water.
Fresh Water Flushing
Overworked Reminder: When the system continuously makes water for more than 30 minutes, the overworked
reminder will be executed and the buzzer will beep for 3 minutes. The system stops making water when working for
over 33 minutes, and the ltering indicator and power indicator will turn o. Meanwhile, the lter life indicators will
ash red. The system needs to be powered on again to reset itself.
Starting and Stopping Frequently Reminder: The RO system will perform a starting and stopping frequently
reminder when the booster pump is frequently started and stopped over the course of 20 minutes. The system will
stop making water, while the ltering indicator and power indicator will turn o and the lter life indicators will ash
purple. The system needs to be powered on again to reset itself.