Dometic MX 900 User manual

PORTABLE AIR CONDITIONER
MX 900 / MX 900C
PORTABLE AIR
Installation and Operating manual
EN
移動冷氣
CONDITIONER
ZH

18
CONTENTS
1. Important Safety tips
......................................................................................... 2
4
1.3
2.. Product Introduction
7
8
9
3. Product Operation
10
15
4. Clean and Maintenance
16
16
5. Common Failures and Diagnosis
19
19

1.1 Precautions
For household useonly For indoor use only; please place
the A/C in a dry environment.
In case of a blocked air exchange,
never stack any items around the
machine.
To avoid damages, never place
any heavy items on the
machine.
1.Important Safety tips
The meaning of this user manual is shown below.
Please avoid such operations, in case of any safety and health risks.
Such instructions have to be followed, for safety and health concerns.
2
EN

Clean the filter once every two
weeks
For your health,never drink
condensed water discharged
from the machine.
Please unplug the power cord,
if the machine will not be used
for a long time.
Nonprofessionals are not allowed to
dismantle or repair the machine.
Please wipe the machine with a soft
cloth, instead of wax, diluent or
irritant detergent.
Do not operate the machine with
wet hands or in a humid
environment.

1.2 Safety Warnings
Damaged power cord or plug
shall not be used. Never plug to
a loose socket.
Never damage the power cord, or
use unlicensed power cord. Make
sure voltage is right.
Do not modify or extend the power
cord. A grounded outlet is suggested for
the machine.
In case of electric shock, never plug/
unplug with wet hands. To unplug, pull the plug end
instead of wires.
4EN

Please turn off the machine before
unplugging.
Never control on/off status by
directly plugging/unplugging.
Never overload the socket. Keep away from heat sources or
direct sunlight exposure.
If there is any actue noise, smell or
smoke, turn off and unplug for
diagnosis.
In case of electric shock, never
damage the power cord by placing
heavy objects on it.
5
EN

Keep electrical parts away from
water.
Never insert fingers or any hard
objects into the louver.
If water enters, turn off and unplug in
time; and call for checkandrepair from
a professional serviceman.
Please turn off and unplug before
wiping, cleaning or replacing
components.
If gas leakage happens, open the
window for ventilation before
plugging the machine.
The appliance can be used by children at
or above 8 years old and persons with
reduced physical, sensory or
phycological capabilities, if they have
been given supervision and instruction
concerning proper use and hazards of
the appliance.
6 国

1.3 Tips
For a proper work of compressor,
place the machine vertically on an
even ground.
For a proper ventilation, keep the
machine at least 50cm from objects
nearby.
Never use the appliance near
gasoline or other flammable objects. Keep the appliance from spraying
agent or any solvent，or plastics may
deform and electrical parts may even
be damaged.
50cm
7
EN

2. 2.Product Introduction
2.1 Main Components
9
10
8
EN
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2
3
4
56
国
9
2.2 Control Panel and Remote Control
1
9
4
Swing button
The button is to choose auto-swing function.

Place the machine on the horizontal floor
near the window.
For proper ventilation and best machine performance,
keep the appliance at least 50cm from objects nearby.
Air Exhaust Duct Assembly
Connector Air exhaust duct Flat nozzle
Screw-fixture Type
Optional Window Sealing Kit
Clip-fixture Type
Plate#1
Plate#2
Plate#1
Plate#2
Screw Clip
3. Product Operation
3.1 Place and Install
Place
Best Install
Installatio
50cm
10
国
90cm
Install

Step 1:
Screw-fixture type
1.Measure window size;
2.Adjust Length of the plate according to
Fix the screw Firmly
window size;
3. Fix the plate with a screw
Clip-fixture Type
1.Measure window size;
2.Adjust Length of the plate according to
window size;
3.Lock the plate
Step 2:
Fix the plate to window
Step 3:
Swirl the exhaust pipe assembly (exhaust fitting
end) into the rear panel outlet (counterclockwise).
11
EN

Step 4:
Insert the exhaust pipe assembly (exhaust port end) into the window
seal panel assembly and screw it up.
Impression Drawing of Completion
screw
Small Notch
First Insert
12EN
Then slide until it is locked

Incorrect installation
It‟s important to keep the exhaust duct smooth. Incorrect installation will affect work of the A/C.
Prevent the exhaust duct from sharp bending.
Ensure air can flow smoothly in the duct.
Slide to open the battery cover on the back；
Insert 2*AAA（DC1.5V) new batteries and install electrodes
correctly when inserted;
Fit the batteries in place.
Warning:
Only AAA DC 1.5V batteries are allowed, never use chargeable batteries or other types of batteries.
Replace both batteries; never mix new battery with old one.
Please remove batteries if the appliance is not to be used for a long time.
13
EN
Warning
The exhaust duct is designed especially for this model. Don‟t replace or lengthen it; otherwise, it
will result in failure.
Notice:
The air exhaust duct can stretch up to 1500mm. To avoid bending, stretch it as short as possible
REMOTE CONTROL
Please install the battery correctly before using the remote control. The specific
steps are as follows:

Warning:
Never use leaked batteries.
Chemicals in batteries could result in such health hazards as burns. If liquid
in batteries splashes to skin or clothes, please wash with clean water in
time. If batteries are swallowed, please rinse mouth immediately with clean
water and then go to the doctor.
14EN

How to Operation
Cooling Mode
Under cooling mode, cooling indicator will light on.
Temperature Setting is from 16℃to 30℃.
Press Fan Speed Button to choose from low/ high fan speed.
Fan Mode
Under Fan mode, indicator will be on.
Press Fan Speed Button to choose from low/ high fan speed.
Temperature cannot be set under this mode.
Dry Mode
Dry indicator will be on under this mode.
Remove water plug (see right), insert one end of pipe to drainage
hose，the other end would be in water tank or water channel.
If ambient Temp. ≥17℃（or 62℉）compressor starts and
follow below sequence: if ambient Temp. ≤15℃(or9°F)
compressor stops；when it reaches ≥17℃，compressor
starts again.（There would be a 3-min delay for
Compressor protection）
Fan runs with a fixed low speed.
Temperature is fixed.
(Notes：Under dry mode，please dismantle air exhaust duct, or performance
will be affected and water full alarm“FL” will buzz.
Heating Mode (not available for cooling only model)
Under this mode, heating indicator will light up.
Press UP/DOWN button to select Temperature between 16℃and
30℃. Press Fan Speed button to set low/ high speed.
15
EN

Timer Mode
In standby mode, press Timer button to set ON time. A range of 0 to 24 Hours
could be set with UP/DOWN button. Timer indicator will light up in this mode.
Under running state ， press Timer button to set OFF time. A range of 0 to 24 Hours
could be set with UP/DOWN button. Timer indicator will light up in this mode.
4.Clean and Maintenance
4.1 Drainage
With self-evaporating system, the appliance could perform better and save energy
in a way of cooling down condensor by reusing condense water.
The appliance would display „FL‟ with buzz sound, if built-in water container is full.
After compressor stops, please drain water as follows:
Unplug and dismantle air exhaust duct;
Move the appliance to a right place;
Pull out the water plug，and drain all water;
Re-insert the water plug;
Re-install the air exhaust duct, restart the appliance.
4.2 Maintenance
Warning: In case of electric shock, turn off and unplug before repair or maintenance.
Body Clean
Unplug before cleaning.
Clean with soft and half-wet cloth. In case of damage to
appearance or the appliance, never use chemical reagent,
such as benzene, alcohol and gasoline.
Never let splash water enter the appliance.
16EN

Filter needs to be cleaned once every two weeks. If air quality indoor is poor, it has
to be washed more often, or performance of the appliance would be lowered due to
blocked filter screen. Please follow below instructions for cleaning:
1Take off air-inlet grille as indicated in the photo;
2 Pull out the filters.
3 Clean the filter in 40 warm water or water with neutral detergent
dry the filter in a cooling area.
Re-install the filter and grille after drying completed; restart the appliance.
If filter is dirty, clean in 40℃warm
water or in water with neutral
deterget.
1
If filter is so dirty, clean the dust
with a vacuum cleaner.
Warning:
Do not wash with filter in water above 40℃， orwith irritating detergent such as
alcohol, gasoline and benzene.
In case of deformation, filters has to be kept away from heat sources and dried
naturally in a cooling area.
Never operate the appliance when filter is not installed.
2
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4.3 Seasonal Maintenance
If the appliance will not be in use for along time, please maintain by following below steps：2
Pull out water plug for drainage.
Run in Fan mode for at least 2 hours to dry internal parts.
Turn off and unplug.
Clean the filter and reinstall.
Dismantle the air exhaust duct and keep it well.
Take off batteries.
Wrap the appliance in a plastic bag and
keep in a dry and cooling place.
If the appliance haven't been used for along time, please pay attention to
the following when to be used again：
Make sure water plug and filter are installed.
Never use damaged power cord.Check before use.
Insert batteries.
Assemble other parts according to the instruction.
18EN

5. Common Failures and Diagnosis
Error-detecting code Multi-functional defection
E1 Error of the coil‟s temperaturesensor
E2 Error of indoor temperature sensor
E4 Anti-freezing protection: temperature of the coil is too low and the whole
A/C is off. When temperature excesses 8℃,the protection is released
and previous working state isrecovered.
TROUBLE CAUSE SOLUTION
TheA/C
doesn‟t work
No display Reset circuit breaker on AC cord
Thedisplay“panel”displays“FL” Restart the A/C after power off and
draining, then it will become normal
Time OFF function is started The A/C can be restarted 3 minutes
after being turningoff
The A/C
starts frequently
Direct sunlight Draw the curtain
Doors and windows keep open; there
are lots of people or heat source in
room
Close doors and windows,
remove heat source
Filter screen is very dirty Clean or replace it
Air inlet or air outlet is blocked Remove the stem
Big noiseof
the A/C The A/C is placed unevenly Place it at even and firmground, avoid
shaking
Thecompressor
doesn‟t work Its delay protection is started Wait for 3min, turn on after
temperature decreases
5.1 Intelligent Error Detection
19
EN
5.1 Trouble-Shooting TROUBLE-SHOOTING
The following table lists the common faults and maintenance methods of this series of portable A/C. When
the machine is in abnormal operation, the following table can be used for simple diagnosis and maintenance.
If it still can not be solved, please contact professional maintenance personnel.