Midea MU136-4 User manual
ULTRAFILTRATION WATER PURIFIER
Instruction Manual
Model: MU136-4
The diagram above is just for reference. Please take the
appearance of the actual product as the standard.
Before installing and operating your water purifier, please read the instruction
manual carefully and keep it for future reference.
1
Contents
A. Product Overview.....................................................................................2
B. Display Instructions..................................................................................2
C. Use it for the First Time............................................................................3
D. Usage Cautions.......................................................................................4
E. Filter Configuration..................................................................................7
F. Filter Replacement...................................................................................8
G. Basic Parameters....................................................................................8
H. Daily Maintenance...................................................................................8
I. Water treatment process drawing.............................................................9
J. Check the Abnormal Phenomenon..........................................................9
2
A. PRODUCT OVERVIEW
This device is used for filtering and purifying municipal tap water, and the output water quality
meets the “Sanitary Standard for Hygienic Safety and Function Evaluation on Treatment Devices
of Drinking Water --- General Water Treatment Device” . It is suggested to use the purified water
produced by this device for household use (braising soup, cooking rice, washing vegetable).
Filter service life display
assembly
Top cover assembly
Filter
Lower housing
assembly
Instructions 1/4” PE pipe
(standard configuration
for down type)
Water outlet faucetFaucet accessories box
Remarks:
The faucet accessories box composes of: gooseneck faucet: 1 set, water inlet ball valve: 1 pcs,
2” joint clamp: 8 pcs.
B. DISPLAY INSTRUCTIONS
Reset button
(PP cotton, active carbon filter)
Reset button
(Ultrafiltration membrane filter)
Filter service life
indication bar
3
C. USE IT FOR THE FIRST TIME
The water purifying device should be installed by the professional technicians of local service office.
Start/Stop the Device for Undersink
1.Dial your local customer
service to reserve water
purifier installation
2. The installation technician
shall install, flush and test the
device according to the steps
listed in the Installation and
Maintenance Manual
Install
Flush
Test
3. Users may normally
use the water purifier
1.Connect with water source,install the 1/4"
tubing on the valve, turn on the three-way ball
valve, supply tap water.
2.Connect tubing with three-way ball valve to
the “ Water In” port of the system.
Note:
1. If it will be kept at OFF state for a long period, it is suggested to close the three-way ball valve.
2. Make sure you remove the Lock Clip when inserting the tubing. Reinstall the Lock Clip after the
tubing is inserted.
3.Install quick-fitting to the faucet.
4.Connect tubing with faucet to the
“ Water Out” port of the system.
5. Turn on the faucet, water purifier starts to
produce water, close the faucet and the device
stops producing water
4
D. USAGE CAUTIONS
Start/Stop the Device for Desktop
Smart
Just 1 Turn
Note:The facuet supply 4 different screws,if the screw does not fit your tap, please contact your
local plumbing supply center where adapters are available for purchase.
1. Select the suitable screw, connect
the supply faucet with your tap, cut
the PE pipe as you need, insert PE
pipe to faucet white fitting with
purifier inlet, insert PE pipe to
faucet blue fitting with purifier
outlet.Turn on the faucet supply
tap water.
Diverter Valve
selection
(Tap Water)
2. Turn on the divertor
valve, water purifier
starts to produce
water
3.Turn off the divertor
valve to the below
direction,shut off the
water. Meanwhile you
can turn off the faucet
In order to ensure safe use and prevent physical injury and property loss for you and others,
please obey the following cautions, otherwise, it may possibly cause accident.
If this device won't be used for a long
period, please cut off power supply and
close the three-way ball valve. When
using it again, please discharge water
for 3-5min before normal use.
Do not store it in the place with direct
and intensive sunlight, otherwise, it may
easily cause components ageing. avoid
store or expose the device in the
environment lower than 0 °C.
Raw Water
(Tap Water)
Pure Water
(Filtered Water)
Spay Water Turn Off
5
Pretrea-
tment
device
The device must be installed or relocated
by professional technician, it will easily
damage the product or cause the danger
of electric shock if the components of the
device are dismantled by yourself, it will
easily cause improper operation if the
device is moved or conveyed by yourself,
which may result in device damages.
Pretreatment device shall be installed in
front of this device if the inlet water
doesn't meet the standard of municipal
tap water (high content of mud and sand
in water, residual chlorine exceeds the
standard).
When the device if faulty, please quickly
cut off water supply, and
contact the local service office or national
wide service hotline.
The best working pressure of this device
ranges 0.1-0.4MPa, please install
corresponding pressure increasing or
decreasing device if the water pressure
is higher or lower than this level.
When the environment temperature is
low, the flow rate will drop, which is the
natural property of the filter.
It may possibly cause fire, product
damage or circuit fault if there's strong
magnetic apparatus near the device
Mean the [prohibited] contents Mean the [compulsory] contents
[Note] The items which may possibly cause
light injury or property loss
In order to ensure safe use and prevent physical injury and property loss for you and others,
please obey the following cautions, otherwise, it may possibly cause accident.
6
Mean the [prohibited] contents Mean the [compulsory] contents
[Note] The items which may possibly cause
light injury or property loss
In order to ensure safe use and prevent physical injury and property loss for you and others,
please obey the following cautions, otherwise, it may possibly cause accident.
The damp or dusty environment
may possibly cause device
damages.
Please do not put
heavy object on the
device.
Please do not approach
combustible and volatile
substance to this device.
Please install the device near the
floor drain.
When there isn't water supply or the pipe is under
repair, please turn off the three-way ball valve.
After recovering water supply, please turn on other
faucets to drain out sand and mud before turning
on the three-way ball valve, otherwise, the filter
may be possibly jammed by sand.
Children is not allowed to
operate, contact, approach
or climb on the product,
children and intellectual
disabilities should use the
product with the support
of guardian.
Only the components
provided by our company
should be adopted.
It is normal that the product
will vibrate and make noise
lightly when it is producing
water.
7
Mean the [prohibited] contents Mean the [compulsory] contents
[Note] The items which may possibly cause
light injury or property loss
Periodically clean and
replace the filter.
Please do not contact or approach
the product to heat source and
open fire.
E. FILTER CONFIGURATION
Filter Name
Special Instructions
Functions Filter Service
Life Quantity
Rough filtration for raw water, block the visible
substances with naked eye in the raw water.
Adsorb abnormal color, bad smell, residual chlorine
and some organics (methenyl trichloride, carbon
tetrachloride).
Block the bacterium (total coliforms), visible
substances with naked eye.
Adsorb abnormal color, bad smell, residual chlorine
and some organics (methenyl trichloride, carbon
tetrachloride) with better effect .
Rear active
carbon filter
Ultrafiltration
filter
Front active
carbon filter
PP cotton filter 4-6 months
6 months
18 months
12 months
1 pcs
1 pcs
1 pcs
1 pcs
1. The over-standard test for organics and heavy metals is conducted according to “Regulations on
the Test of Drinking Water Hygiene and Safety Product of the Ministry of Health” .
2. The filter maintenance cycle is not the quality assurance period since it is the ideal filter
maintenance period that the source water meets the drink water national standard basing on the
normal water use of common family.
3. The maintenance cycle of filter is the estimated period, the actual maintenance cycle is different
(according to the suggestion of local distribution and service office) according to the working area,
water quality, using amount and season. Clean water may output after timely replacing the filter.
8
F. FILTER REPLACEMENT
Pull the handle Take out the fiter Replace the filter
Lock the filter
Get the cover on
Long press RESET to
reset the reminder
Open the cover
4-38
℃
G. BASIC PARAMETERS
For the technical improvement of the product, the following parameters are subject to change
without prior notice, please refer to the nameplate of the product.
The purified water flow rate is tested when the environment temperature 25±2℃, water
temperature 25± 1℃and water inlet pressure 0.24 ± 0.02MPa.
Model MU136-4
Rated general purified water flow rate
Purified water flow rate
Working pressure
Applicable water quality
Working temperature
3000L
1.2L/min
0.1-0.4MPa
Municipal tap water
H. DAILY MAINTENANCE
Maintenance is necessary for the daily use of purified water, in order to avoid fault and hurting the
drinking water safety caused by incorrect maintenance, and ensure the normal work of the product.
1. This product is periodically maintained by the professional technicians of our company, and the
filters are replaced by our technicians for ensuring the quality of output water.
2. When cleaning the product, please do not use soap, detergent and strong volatile solvent such
as thinner, gasoline and alcohol, otherwise, it may possibly cause crack, scratch and color
changing.
3. Please do not directly spray water to clean the device.
4. Check if there's water surrounding the product, and identify if there's water leakage.
5. Check if the water outlet faucet has leakage.
6. Check if the concentrated water pipe is fixed tightly.
7. Before going out for a long period, check if the power is cut off and the inlet switch (three-way
ball valve) is turned off.
8. Do not put the product declining, horizontal or upturned.
9. Do not refit the joint and pipe of the device by yourself.
10. Do not keep the product working in the environment lower than 0
℃
.
11. Do not disassemble and replace the filter by yourself.
12.Do not expose the product and pipeline in direct sunlight.
9
I. Water treatment process drawing
PP
cotton
filter
Front
active
carbon
filter
Rear
active
carbon
filter
Ultrafil-
tration
filter
Purified water interface
Tap water interface
J. Check the Abnormal Phenomenon by Yourself
The followings are the identification and check of common abnormalities, if it can't be removed
through simple treatment, please send it to the repair office or consult our customer service hotline.
Do not dismantle and repair it by yourself for avoiding danger or water purifier damage.
1. During purifying and filtering process, the water purifier may generate light noise, please set your
heart relaxed when it is working.
2. If there's any problem, please solve according to the following methods, if the fault can't be
solved, please send the water purifier to local service office.
Phenomenon Possible Reasons Solutions
The water output volume
of the purified water
drops abnormally
Filter is jammed Flush or replace the filter.
Filter is not timely replaced and
exceeds the service life Replace the filter.
The ball valve or faucet is not
completely turned on
Check water inlet ball valve, or if
the faucet is completed turned on.
Purified water in the water storage
tank is used up
Wait for the device to produce water,
use it about half an hour later.
The output water
quality is low
Filter is fault
The device is not used for a long
period (over 3 days)
Quality of source water is low Confirm that water source is
municipal tap water.
Turn on the purified water faucet,
flush it for 3-5min.
Please contact local service office,
and replace it timely.
Water leakage Component is damaged
Please cut off water and power
supply, please send it to the repair
office.
After recovering tap
water, turn on the
purified water faucet
doesn't output water
The pipe or filter is jammed
If the pipe is jammed, remove the
obstacle; if the filter is jammed,
replace the filter and try again.
If the pipe is jammed, remove the
obstacle; if the filter is jammed,
replace the filter and try again.
The pipe or filter is jammed
Not water output after
replacing the filter
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