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 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. Troubleshooting........................................................................................9

2
A. PRODUCT OVERVIEW
This device is used for filtering and purifying 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 such as cooking and drinking.
Filter service life display
Top cover
Filter
Lower housing
Instructions 1/4” PE pipe Water outlet faucet
Faucet accessory box
Remarks:
The faucet accessory 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 a professional technician or plumber.
Start/Stop the Device for Undersink
1. The installation technician shall
install, flush and test the device
according to the steps as listed
below.
Install
Flush
Test
2.Connect with water source,install the 1/4"
tubing on the valve, turn on the three-way ball
valve, supply tap water.
3.Connect tubing with three-way ball valve
to the “ Water In” port of the system.
Note:
1. It is advised to close the three-way ball valve, if not used for long periods of time.
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, starts to filter water,
close the faucet and the device stops
filtering water.

4
D. USAGE CAUTIONS
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 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 storing or exposing the device in
an environment lower than 0°C.
The device must be installed or relocated
by professional technician, it will easily
damage the product 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.

5
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 [compulsory] contents
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 an accident.
The damp or dusty environment
may possibly cause device
damages.
Please do not put
heavy object on the
device.
Please do not put
flammable substances
near the device.

6
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 are not allowed to
operate, approach or climb
on the product, children
should be supervised.
Mean the [compulsory] contents
Mean the [compulsory] contents
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 filtering water.
Replace the filters according the Filter
service life indication bar as per page 2.
Please do not use heat near the device.
Accessories

7
E. FILTER CONFIGURATION
Filter Name
Special Instructions
Functions Filter Service
Life Quantity
Remove Rust、Sand、Particulate、Sediment and
some other insoluble matter which is bigger than
5μm
Absorb abnormal color, bad smell, residual chlorine
and some organics (methenyl trichloride, carbon
tetrachloride).
Block the bacteria (total coliforms), visible
substances with naked eye.
Absorb abnormal color, bad smell, residual chlorine
and some organics (methenyl trichloride, carbon
tetrachloride) for better effect.
Rear active
carbon filter
Ultrafiltration
filter
Front active
carbon filter
PP cotton filter 3-6 months
6-12 months
12-18 months
6-12 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 based 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.

8
F. FILTER REPLACEMENT
Pull the handle Take out the filter 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
Purified water flow rate
Working pressure
Applicable water quality
Working temperature
1.2L/min
0.1-0.4MPa
Municipal tap water
H. DAILY MAINTENANCE
Maintenance is necessary for the daily use of purified water.
1. 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.
2. Please do not directly spray water to clean the device.
3. Check if there's water surrounding the product, and identify if there's water leakage.
4. Check if the water outlet faucet is leaking.
5. Please turn off the the three way valve if not being used for long periods of time.
6. Do not put the product at an angle, horizontal or up side down.
7. Do not refit the joint and pipe of the device by yourself.
8. Do not keep the product working iin an environment lower than 0
℃ .
9. Do not expose the product and pipeline in direct sunlight.
C1 C2

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. TROUBLESHOOTING
The followings are the identification and Check for 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 to avoid damage to your water purifier.
1. During purifying and filtering process, the water purifier may generate light noise, this is normal.
2. If there's any problem, please check the following methods, if the fault can't be found, please
contact Midea South Africa.
Problem 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.
The output water
quality is low
Filter is faulty
The device is not used for a long
period (over 3 days)
Turn on the purified water faucet,
flush it for 3-5min.
Please contact local service office,
and replace it timely.
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
No water output

The product is subject to change without notice.
Please keep this manual in safe place
for future use.
No.68 GuangLe Road, BEIJIAO, SHUNDE, FOSHAN,
GUANGDONG, P.R.C
Foshan Midea Chungho Water purification
Equipment Co., Ltd