Different types of fan coil units are designed to be both versatile and space saving to suit every interior design. Ceiling
concealed type for the sophisticated, luxurious floor space saving, all kind of interior decoration; ceiling exposed type for
economical and space saving installation; etc.
Zone Control
These fan coil units can be installed in different zones as each unit operates independently. Zone control on energy
saving, different comfort requirement; better air distribution needs can therefore be easily achieved.
Standardisation Of Fan Coil Unit Control
The fan coil unit controller is standardized using W2 I.C, which enables the selection of valve / valveless and cooling /
heating applications. This allows the user to choose the desired application by just plugging in or removing the jumpers
at certain connectors on the PCB. The advantages of these units are lesser inventory for finished goods stock and spare
parts. For more details, please refer to General Installation guide.
Unique Features For MWM Series
Easy Installation
The wall mounted fan coil unit is easily installed because of its compact size, slimness and light weight. Slim and short
outdoor unit can be easily installed even in a narrow balcony and passageway and yet have a stable profile.
Space Saving
No space is required on either floor or ceiling. This newly developed super slim design for wall mounting maximises floor
space usage and enhance ceiling appearance where ceilings are low.
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Quiet Operation
Cooling comfort is improved by whisper-quiet operation which is achieved by a tangential fan.
Excellent Air Distribution
Air discharge direction can be adjusted in four directions, manually or automatically by using LCD remote control, coupled
with good air flow, the unit provides excellent air distribution.
Facilitated Maintenance Ensured
The new design cassette filter is slide-out type which can be easily removed at the air inlet grille for cleaning. Maintenance
is easy for electrical components, piping and wiring as these are all easily accessible by merely removing front plastic
panel.
Wireless Remote Control
The compact LCD transmitter is able to operate the air conditioner unit within the distance of 9 meters. Fan motor speed
can be set at low/medium/high or automatic. Sleep mode automatically increase set temperature since room temperature
is lower at night thus achieving comfort surrounding. Air flow direction can be controlled automatically. Room temperature
is controlled by electronic thermostat. The unit can be preset to on and off automatically for maximum of 15 hours by using
timer on/off.
Slit Fin
The unique Hydrophilic slit fin has greatly improved the air flow and the contact surfaces with the air thus to boost the
cooling capacity.
8
Unique Features For MCK Series
Built In High Head Drain Pump
The unit comes with a built in high head drain pump. Condensate water can be pumped up to 700mm and drain out
smoothly.
4-way Air Discharge And Air Swing
These features greatly improve the air distribution in the conditioned space.
Wireless And Wired Controller Option
Wireless Handset is the standard controller. However if wired controller required, Netware3 & SLM3 wired controller is a
wise choice(optional).
Unique Features For MCM-DW/EW Series
2-way Air Discharge And Air Swing
The 2-way air discharge couple with the air swing function, provide better air distribution in the conditioned space.
Easy Maintenance
The air filter and components can be easily accessed from the bottom of the unit. This make servicing and maintenance
become a simple task.
Wireless And Wired Controller Option
Wireless Handset is the standard controller. However if wired controller required, Netware3 & SLM3 wired controller is a
wise choice(optional).
Unique Features For MCC Series
Elegance And Prestige
As the unit is installed above the ceiling with only the supply and return air grille exposed to view, the air conditioned space
will appear as elegant and prestigious as a centralized air conditioned area.
Evergreen Design
This unit will never become obsolete as the unit is completely concealed away. Interior decoration for maximum aesthetic
beauty as well as interior design is easily achieved.
Superior Air Distribution
As the conditioned air can be distributed to every corner of the area by air duct, this will ensure more pleasant living
environment, thus provide extra comfort to the occupants.
Optional Duct Accessories
The optional duct accessories makes the ducting and installation work so easy.
Wired Controller
Netware3 & SLM3 wired controller offers simple and flexibility in controlling the unit.
Unique Features For MDB-BW Series
Superb Air Distribution
These units are designed with high air flow and static, enables adequate distribution of air to the desired space. Providing
comfort to every corner of the room.
Reliability
The structures are strong and robust to ensure the product operation life.
Versatile
Multiple rooms can be cooled together by just using one unit of MDB.
9
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General Installation Guide
System Configuration
The standard controller board (W2) comes with a VALVE jumper and a HEAT jumper. The system can be
configured as the jumper selection listed below:
Disconnect the power supply to the unit before attempting to connect the wiring
oror
or
oror
mama
ma
mama
CACA
CA
CACA
tiontion
tion
tiontion
HEAT JumperVALVE Jumper
UTION !UTION !
UTION !
UTION !UTION !
√√
√X
X√
XX
Model: MWM - G2W / 301W
1. VALVE jumper is plugged into JVLV connector on the emergency switch board.
2. HEAT jumper is plugged into JMODE connector on the emergency switch board.
Model: MCK-AW/AWH/CW, MCM-DW/CBW/EW and MCC-CW
1. VALVE jumper is plugged into JVLV connector on the main board.
2. HEAT jumper is plugged into OD connector on the main board.
Model : MWM 007 / 010 / 015G2W (IONIZER)
10
Model : MWM 020 / 025G2W (IONIZER)
Model : MCM Series / MCC Series / MCK-AW/CW
11
MCK-AWH 4 pipes system controller board setting
A) Model selection
The standard controller board (W2.0) comes with a default setting for model selection. Please select the model
accordingly by using jumper.
SystemModelFunction
2 Pipe
System
4 Pipe
System
M1 Model 1
M2 Model 2
M2 Model 2
M4 Model 4
Cooling or Heating
Cooling or Heating with Auxiliary Heater
Cooling Only with Boiler
Cooling or Heating with Boiler
12
B) Valve, Heat and Fan priority selection
JumperWith Jumper (Default)Without Jumper
Fan Priority JumperUser set speed or lower fan if autoFan stop when thermostat cut off
mode is selected
Heat JumperFor Heat pumpFor cooling only
Valve JumperFor Valve control (Model 1,2,3 & 4)For valveless control (Model 1 & 2)
C) Others
The controller board comes with other option.
i) Unoccupied Mode
If the dry contact is closed, the Unoccupied mode is activated and vice versa. When Timer On is active, system
goes back to Occupied mode.
The dry contact connection points can be connected parallel with other fan coil unit (FCU) boards. If the dry
contact is closed, Unoccupied mode will be activated on all fan coil units that are connected parallel as shown in
figure below.
13
ii) Anti Freeze Mode
Anti Freeze operation has the highest priority among all unit operation. Anti Freeze operation will be activated
only if dry contact is closed and vice versa.
iii) Window Open Mode
The dry contact connection points can be connected in parallel with other fan coil unit (FCU) boards. If the dry
contact is closed, Window open mode will be activated on all the fan coil units which are connected in parallel as
shown in figure below.
iv) Load Shedding
The dry contact connection points can be connected in parallel with other fan coil unit (FCU) boards. If the dry
contact is closed, Load shedding mode will be activated on all the fan coil units which are connected in parallel
as shown in figure below.
Global Unoccupied, Global Window Open and Global Load Shedding operation could also be activated via the
network communication bus line by master controller with or without the above connection.
NOTE :
i) Auto Fan Mode is only applicable in Model 3 only. ( Cooling only with Boiler)
ii) Fan mode is not available in valveless control.
iii) Wired handset (Netware and SLM) has an indoor room sensor. Avoid locating the wired handset at isolated
places where room temperature reading will be inaccurate.
14
Water Piping Connection
The indoor unit is equipped with water outlet and inlet bare connection. There is an air-vent for air purging that is
fitted at the outlet water header.
3 ways solenoid valve is required for cycling off or bypass the chilled water.
Black steel pipe, polyethrene pipe, PVC pipe and copper tube recommended in field installation.
All types of piping and connection must be insulated by polyurethane (ARMAFLEX type or equivalent) to avoid
condensation.
Do not use contaminated or damaged pipe and fitting for installation.
Some main fitting components are needed in the system to enhance the capacity and ease of service, such as
gate valve, balancing valve, 2 ways or 3 ways solenoid valve, filter, strainer etc.
15
Preliminary Site Survey
Electrical supply and installation is to conform to LOCAL AUTHORITY's (e.g. National Electricity Board) CODES
and REGULATIONS.
Voltage supply fluctuation must not exceed ± 10% of rated voltage. Electricity supply lines must be independent
of welding transformers which can cause supply fluctuation.
Ensure that the location is convenient for wiring and piping.
Mounting
For ceiling mounted models, locate a position where piping and ducting work can be kept to a minimum.
Ensure that overhead supports are strong enough to hold the unit's weight. Position hanger rods and check for
alignment with the unit. Check that hangers are secure and that the base of fan coil unit is level in two horizontal
positions.
Piping
Drain and water piping must be accurately connected.
Please refer to "Specification Sheet" for piping sizes.
Piping Support
All water mains must be adequately supported to carry the necessary weight involved, provisions must be
made by the installing contractor to allow for adequate free movement of all vertical and horizontal risers and
run outs. Due to the fact that cold water will be circulated through the water mains, a sizeable movement of the
water mains can be expected due to contraction. If for example, the piping is rigidly supported with no provision
for movement, it is very possible that the tubing of fitting may be broken causing water leakage in the conditioned spaces throughout the building.
Coil Venting
Each standard basic unit coil is equipped with a manually operated air vent which is installed at the end of a
small copper line leading into the highest point of the coil. By means of this valve, air may be vented manually,
from the coil to keep it operating at full capacity. When water is first introduced into a coil, air is sometimes
trapped in the coil tubing. This trapped air will reduce cooling capacity and create "Bubbling" or "Clanking"
noise within the units. To release air trapped in the coil, press the air vent head to allow air to flow out of the air
vent opening. Release when a steady stream of water appear.
Electrical Connection
As wiring regulations differ from country to country, please refer to your LOCAL ELECTRICAL CODES for field
wiring regulations and ensure that they are complied with. Besides, take note of the following general precaution:
1) Ensure that the rated voltage of the unit corresponds to the name plate before commencing wiring work.
2) Provide a power outlet to be used exclusively for each unit and a power supply disconnect and a circuitbreaker for over-current protection should be provided in the exclusive line.
3) The unit must be EARTH to prevent possible hazards due to insulation failure.
4) All wiring must be firmly connected.
16
General Operation Guide
Start-Up
The following procedure must be completed before any attempts is made to put the entire system Into operation:
1) Piping connections completed.
2) Electrical connections completed.
3) Duct connections completed.
4) Auxiliary drain pans in position where required.
5) Drain line draining into drain pans.
6) Filters correctly installed and free of construction debris.
7) Motor-blower assembly rotates freely.
8) Unit Hydro-statically tested and air vented.
Starting The Fan Coil Unit
1) Turn on the switch of water pump.
2) Start water chiller.
3) Operate the fan coil unit by turning on the fan and set the control switch to get the desired speed.
4) Inspect the duct and piping condition and rectify problem (e.g. vibration, noise, etc.) if exist.
Servicing And Maintenance
Fan coil units are designed to operate continuously with minor routine maintenance. Since fan coil units cool
the discharging forced air, the efficiency with which the units operate is directly related to the amount of air
passing through the coil.
Air Filters
The function of the air filters is to remove foreign matter such as dirt, soot, pollen and certain other impurities
from the air passing through it. A clogged or dirty filter not only fails to do the job for which it is designed, but
restricts the flow of air over the coil.
The importance of cleaning the filter before it becomes clogged must be greatly stressed. The frequency with
which a filter should be cleaned will depend upon the amount of dust and foreign material that enters a unit, and
this depends upon location and situation.
The washable viledon or saranet filter may be cleaned by tapping the filter on a solid surface to dislodge heavy
particles. Wash under stream of warm water, with detergent if necessary. Dry it thoroughly before replacing.
Fan Motor
The fan motor is pre-lubricated and sealed at the factory. Therefore, no lubricating maintenance is required.
Coils
Clean coil unit by brushing between fins with a nylon brush. Brushing should be followed by cleaning with a
vacuum cleaner. The coil may also be cleaned by using a high pressure air hose and nozzle if a compressed air
source is available. It should be pointed out that if suitable air filter is used and taken care of properly, the coils
need no cleaning.
Drain Pipe
The drain pipe should be checked before operation of unit is begun. If it is clogged, steps should be taken to
clean the debris so that condensate will flow out easily.
Replacement Of Parts
Replacement of parts are available through your local dealers. When ordering parts, you must supply
Pipe Water Sensor Error (short/open) Blinks 2 timesE2
Water Pump ErrorBlinks 6 timesE6
Pipe Water Temperature FaultBlinks 5 timesE5
* Window Open ActivatedBlinks 3 times-
* Antifreeze Mode ActivatedBlinks 7 times-
* Load Shedding ActivatedBlinks 8 times-
Without Controller
* Only applicable for 4-pipe system
18
Operation Guide For G17
1.Transmission Source
• The source where the signal will be transmitted.
2.Signal Transmission Indication
• Blink to confirm that the last setting has been transmitted to the unit.
3.Temperature Setting
• To set the desired room temperature, press the S or T button to increase or decrease the set temperature.
• The temperature setting range is from 16°C to 30°C (optional setting 20°C to 30°C).
4.Personalize Setting
• Press and hold for 3s, then will blink. Press again to cycle between and .
• Set the desire setting, then leave the handset for 4s without pressing any key and it will save the setting
into the programme.
• Press once to activate the P1 setting, press again to cycle between P1 and P2.
• Press any key to deactivate the personalize setting.
5.Automatic Air Swing (optional)
• Press the SWING button to activate the automatic air swing function.
• To distribute the air to a specific direction, press the SWING button and wait until the louver move to
the desired direction and press the button once again.
6a. Silent Function
• Press for quiet operation.
• Fan speed turn to minimum speed.
• Press again to deactivate the function.
19
6b. Ionizer Function
• Press button to activate the negative ion function, which will refresh the indoor air effectively.
7.Sleep Mode Setting
• Press the SLEEP button will activate the sleep mode function. This function is available under COOL,
HEAT and AUTO mode.
• When the unit is operating under cooling mode, the set temperature is increased by 0.5°C after 30
minutes, 1°C after an hour, and 2°C after 2 hours.
• When the unit is operating under heating mode, the set temperature is decreased by 1°C after 30
minutes, 2°C after an hour, and 3°C after 2 hours.
8. Operating Mode
• Press the MODE button to select the type of operating mode.
• For cooling only unit, the available modes are: COOL ( ), DRY ( ) and FAN ( ).
9. Fan Speed Selection
• Press the button continuously will toggle the fan speed in the following order:
Low → Med → High → Auto
• Stop pressing when the desired fan speed appears on the display screen.
10. “ON/OFF” Button
• Press one to start the air conditioner unit.
• Press again to stop the unit.
11. Timer Cancel
• Press the TIMER CANCEL button to cancel the on timer setting.
12. OFF Timer Setting
• Press the OFF TIMER button will activate the off timer function.
• Set the desired off time by pressing the OFF TIMER button continuously.
13. ON Timer Setting
• Press the ON TIMER button will activate the on timer function.
• Set the desired on time by pressing the ON TIMER button continuously. If the timer is set to 7.30am,
the air conditioner will turn on at 7.30am sharp.
14. Turbo Function
• Press for fast cooling.
• Fan speed turn to maximum speed.
• Press again to deactivate the function.
15. Clock Time Setting
• Press and hold to set the clock time.
20
Netware3 Wired Controller
21
222324
SLM3 WIRED CONTROLLER
SLM3AC5300
1. "ON/OFF" switch
• Press to start the air conditioner unit.
• Press again to stop the unit.
2. Temperature setting
• Set the desired room temperature.
• Press button to increase or decrease the set tem-
perature. Setting range are between 16°C to 30°C
(60°F to 80°F).
3. Operation Modes
• Press the "mode" button for select the type of operating mode.
- Cooling Only :
COOL, FAN, DRY
- Heat Pump :
COOL, FAN, DRY, HEAT
4. Fan Speed selection
• Press the button until the desired fan speed is
achieved.
5. Timer
• Press the set button to select the switch timer of the
air conditioner unit (the setting range is between 1
to 15 hours).
6. "Sleep" mode
• Press button to activate the sleep function. This
function can only be activated under "cool" or
heating mode operation. When it is activated
under "cool" mode operation, the set temperature will increase 0.5°C after 30 minutes, 1°C
after 1 hour and 2°C after 2 hours. If it is activated under "HEAT" mode operation, the set
temperature will be decreased 0.5° C after 30
minutes, 1° C after 1 hour and 2° C after 2 hours.
7. Air Swing
• Press button to activate the automatic air swing
function.
8. Sensor
• Infra red sensor to receive signals from wireless
controller.
9. LED display
• To display the set temperature (in º C) and timer
delay setting (in hours).
10. Transmission source
• To transmit signals to the air conditioner.
INSTALLATION OF LCD REMOTE CONTROLLER
STEP-BY-STEP GUIDE
i)First, open up the casing of the LCD remote controller into its top and bottom case using a screwdriver.
To do this, insert the screwdriver into the lower slot and slide it in the outward direction.
ii) Fix the bottom case onto the wall with the 2 wooden screws provided. Then, insert the 4 connecting
wires (from the main board) through the slot on the lower center of the case as shown below.
iii) Connect one end in each of the 3 wires to the terminal block behind the top case as illustrated.
iv) To select cooling only model or heatpump model, some adjustment required in the dip switch setting.
v) Fasten back the top and bottom case into place. Hook the two upper claws into their respective slots and
snap the lower part shut.
Dip switch setting for model selection
PinFunctionRemarks
JH & JDRESERVEJH-OFF, JD-OFF
COOL, DRY, FANJH-OFF, JD-ON
COOL, DRY, FAN, HEATJH-ON, JD-OFF
RTCNO REAL TIME CLOCKRTC-OFF
REAL TIME CLOCKRTC-ON
NO DRYWITHOUT DRY FUNCTIONNO DRY-ON
DRY FUNCTIONNO DRY-OFF
25
Sound DaSound Da
33
31
26
33
29
25
36
32
27
34
29
23
28
23
17
19
13
8
7
5
5
38
33
33
28
28
41
39
37
48
44
41
47
43
40
43
39
36
40
35
32
28
25
23
20
19
49
44
42
35
38
43
40
38
36
48
46
42
48
45
44
35
27
50
45
47
44
423942
38
33
29
25
23
48
45
43
Sound Da
Sound DaSound Da
tata
ta
tata
Sound Pressure Level
Wall Mounted Split Type
Model Speed
HIGH 323438373223154036
MWM007G2W
MWM010G2W
MWM015G2W
MWM020G2W
MWM025G2W
MWM301W
Microphone position : MWM-G2W -- 1 m in front of the unit and 0.8 m below the vertical centre line of the unit. (JIS C 9612)
MEDIUM 273034322617143531
LOW 242729262013132924
HIGH 283437363122133935
MEDIUM 273033312517123430
LOW 242628251912112823
HIGH 303539383325154237
MEDIUM 283134332618133632
LOW 242628262013122924
HIGH 374442373425154337
MEDIUM 344039343021144034
LOW 303535302618133530
HIGH 414847434032234943
MEDIUM 394443393528204438
LOW 374140363225194235
HIGH 424645444135284943
MEDIUM 404544433533274742
LOW 374343403530264539
MWM301W -- 1 m in front and 1 m below the air discharge opening of the unit (JIS B 8615)
125 Hz 250 Hz 500 Hz 1k Hz 2k Hz 4k Hz 8k Hz
1/1 Octave Sound Pressure Level (dB, ref 20μPa)
Overall
(dBA)
Noise
Criteria
Ceiling Exposed Split Type
Model
MCM020DW
MCM025DW
MCM030DW
MCM040DW
MCM050DW
Microphone position : MCM 20/25DW -- 1 m in front of the unit and 0.8 m below the air discharge opening. (JIS C 9612)
ModelSpeed
MCM007CBW
MCM010CBW
MCM015CBW
Microphone position : 1m in front and 0.8m below the vertical centre line of the unit.
Speed
High454647464138295045
Medium424345423834244741
Low363739353124154034
High485151504541335449
Medium475050494440325348
Low454748474136275046
High454848474333245146
Medium444747464232235045
Low434545443929204843
High515351504737305449
Medium485150494636285348
Low465049484435275247
High515351504737305449
Medium485150494636285348
Low465049484435275247
MCM 30/40/50DW -- 1 m in front of the unit and 1 m below the air discharge opening. (JIS B 8615)
High263438423835234541
Medium232936393431184238
Low192633343123123733
High273539433936244642
Medium243037403532194339
Low202734353224133834
High283640444037254743
Medium253138413633204440
Low212835363325133935
125Hz250Hz500Hz1kHz2kHz4kHz8kHz(dBA)Criteria
125Hz250Hz500Hz1kHz2kHz4kHz8kHzA (dBA)Criteria
1/1 Octave Sound pressure level (dB, ref 20μPa)
1/1 Octave Sound pressure level (dB, ref 20μPa)
OverallNoise
OverallNoise
26
27
Ceiling Cassette Split Types
Microphone position: MCK020/025AW/AWH – 1.4m below the facia (JIS C 9612)
MCK030/040/050AW/AWH – 1.5m below the facia (JIS B 8615
Microphone position: 1.4m below the facia. (JIS C 9612)
Sound Power Level
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
High
464540383221144237
MCK020AW / AWH
Medium
444337332818123932
Low
434235312617113731
High
484643393327194538
MCK025AW / AWH
Medium
454340352921154235
Low
434238322719144033
High
504847433735284942
Medium
484543383231274538
Low
464341353030264336
High
504949463938315145
MCK040AW / AWH
Medium
484747433634254842
Low
464546413430234641
High
545251484342345347
MCK050AW / AWH
Medium
525050464140325246
Low
514949453939315045
Overall
(dBA)
Noise
Criteria
MCK030AW / AWH
Model
Speed
1/ 1 O cta ve So und p ressu re le ve l (dB , ref 20μP a)
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz
High
444540362619104235
MCK010CW
Medium
4038342819973529
Low
3732272014672921
High
484844393127154539
MCK015CW
Medium
42423630221373831
Low
3936282015663023
High
525146413431194841
Medium
44433933261884033
Low
41393528221173630
MCK020CW
1/1 O cta ve So und p ressu re level (dB, ref 20μ Pa)