Sinclair MULTI SYSTEM SERIE MS-P09AI, MS-P12AI, MS-P18AI split-system air conditioners Service Manual

SERVICE MANUAL
MULTI SYSTEM SERIE
MS-P09AI, MS-P12AI, MS-P18AI
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outdoor
indoor
filter
A heat exchanger
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filter
B heat exchanger
fan
A2
outdoor heat exchanger
4-way valve
B3
B1
SP
filter
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high pressure switch
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discharge silencer
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gas -liquid
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A1:A－unit electronic expansion valve B1:B-unit electronic expansion valve
C1:C-unit electronic expansion valve D1:D-unit electronic expansion valve
A2:A-unit gas pipe temperature sensor B2:B-unit gas pipe temperature sensor
C2:C-unit gas pipe temperature sensor D2:D-unit gas pipe temperature sensor
A3:A－unit liquid pipe temperature sensor B3:B-unit liquid pipe temperature sensor
C3:C-unit liquid pipe temperature sensor D3:D-unit liquid pipe temperature sensor
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inverter compressor
D heat exchanger
discharge temperature
sensor
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ROOM TEMP. TUBE TEMP. RECEIVER AND
SENSOR DISPLAY BOARD
SENSOR
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AP2 DISPLAY
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MAGNETIC
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HEALTH-L HEALTH-N
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STEPPING
MOTOR
Please don't touch any electronic
component or terminal when the
machine is running,stopping or
has been powered off for less
than 3 minutes to prevent electric
shock !
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Buttons on Remote Controller
1
ON/OFF button
2
+/- button
3
MODE button
4
5
FAN button
SWING button
6
I FEEL button
1
2
7
/
button
8
SLEEP button
3
4
9
TEMP button
5
6
10
QUIET button
11
ClOCK button
12
T-ON / T-OFF button
13
TURBO button
14
X-FAN button
15
LIGHT button
7
8
9
10
11
12
13
14
15
Introduction for Icons on Display Screen
I feel
Quiet
Operation mode
Auto mode
Cool mode
Set fan speed
Turbo mode
Send signal
Healthy mode
Scavenging functions
8 heating function
Set temperature
X-FAN function
Dry mode
Fan mode
Heat mode
Set time
TIMER ON /TIMER OFF
Clock
Sleep mode
Light
Child lock
Up & down swing
Left & right swing
Temp. display type
:Indoor ambient temp.
:Outdoor ambient temp.
:Set temp.
Introduction for Buttons on Remote Controller
1
ON/OFF button
Press this button to turn on the unit. Press this button again to turn off the unit.
2
- button
Press this button to decrease set temperature. Holding it down above 2 seconds rapidly decreases set temperature. In AUTO
mode, set temperature is not adjustable.
+ button
Press this button to increase set temperature. Holding it down above 2 seconds rapidly increases set temperature. In AUTO
mode, set temperature is not adjustable.
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MODE button
Each time you press this button , a mode is selected in a sequence that goes from AUTO,COOL, DRY, FAN, and HEAT * , as the
following:
*Note:Only for models with heating function.
After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit
will automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable.(As
for cooling only unit,it won’t have any action when it receives the signal of heating operation.)
4
FAN button
This button is used for setting Fan Speed in the sequence that goes from AUTO,
,
,
,
, then back
to
to Auto.
Auto
Low speed
Low-Medium speed
Medium-High speed
5
Medium speed
High speed
SWING button
Press this button to set up &down swing angle, which circularly changes as below:
This remote controller is universal. If any command
,
or
is sent out, the unit will carry out the command as
indicates the guide louver swings as:
6
I FEEL button
Press this button to turn on I FEEL function. The unit automatically adjust temperature according to the sensed temperature.
Press this button again to cancel I FEEL function.
7
/
button (Only applicable for some models)
Press this button to achieve the on and off of healthy and scavenging functions in operation status. Press this button for the
". Press the button for the second time to start healthy and scavenging
first time to start scavenging function; LCD displays "
functions simultaneously; LCD displays "
" and "
". Press this button for the third time to quit healthy and scavenging
functions simultaneously. Press the button for the fourth time to start healthy function; LCD display "
to repeat the operation above.Air function is applicable for some models.
8
". Press this button again
SLEEP button
Press this button, can select Sleep 1 (
), Sleep 2 (
),Sleep 3 (
) and cancel the Sleep,circulate between these, after
electrified, Sleep Cancel is defaulted.
Sleep 1 is Sleep mode 1, in Cool mode: after run for one hour in sleep mode, the main unit setting temperature will increase 1
after 2 hours, the setting temperature will increase 2
, but the maximal setting temperature is 30
,
, then the unit will run at
this setting temperature all along; In Heat mode: after run for one hour in sleep mode, the setting temperature will decrease 1
after 2 hours the setting temperature will decrease 2
, but the minimal setting temperature is 16
, then the unit will run at this
setting temperature all along.
Sleep 2 is sleep mode 2, that is air conditioner will run according to the presetting a group of sleep temperature curve.
Sleep 3- the sleep curve setting under Sleep mode by DIY:
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(1) Under Sleep 3 mode, press "Turbo" button for a long time, remote control enters into user individuation sleep setting status, at this
time, the time of remote control will display "1hour ",the setting temperature "88" will display the corresponding temperature of last
setting sleep curve and blink (The first entering will display according to the initial curve setting value of original factory);
(2) Adjust "+" and "-" button, could change the corresponding setting temperature, after adjusted, press "Trubo "button for confirmation;
(3) At this time, 1hour will be automatically increased at the timer postion on the remote control, (that are "2hours " or "3hours " or
"8hours "), the place of setting temperature "88" will display the corresponding temperature of last setting sleep curve and blink;
(4) Repeat the above step (2)
(3) operation, until 8hours temperature setting finished,sleep,curve setting finished, at this time, the
remote control will resume the original timer display;temperature display will resume to original setting temperature.
Sleep3- the sleep curve setting under Sleep mode by DIY could be inquired:
The user could accord to sleep curve setting method to inquire the presetting sleep curve,enter into user individuation sleep setting
status, but do not change the temperature, press "Turbo" button directly for confirmation.Note: In the above presetting or enquiry
procedure,if continuously within10s, there is no button pressed, the sleep curve setting within 10s, there is no button pressed , the sleep
curve setting status will be automatically quit and resume to display the original displaying. In the presetting or enquiry procedure, press
"ON/OFF" button, "Mode" button, "Timer"button or "Sleep" button, the sleep curve setting or enquiry status will quit similarly.
9
TEMP button
Press this button, you can see indoor set temperature, indoor ambient temperature on indoor unit’s display. The setting on remote
controller is selected circularly as below:
no display
When selecting "
selecting "
" with remote controller or no display, temperature indicator on indoor unit displays set temperature; When
" with remote controller, temperature indicator on indoor unit displays indoor ambie nt temperature; 3s later or within 3s
it receives other remote control signal that will return to display the setting temperature.
Caution:
This model hasn't outdoor ambient temperature display function. While remote controller
can operate "
" and indoor unit displays set temperature.
It’s defaulted to display set temperature when turning on the unit.
Only for the models with temperature indicator on indoor unit.
10
QUIET button
Auto
Press this button, the Quiet status is under the Auto Quiet mode (display "
OFF (there is no signal of "
" singal) and Quiet
"displayed),after powered on, the Quiet OFF is defaulted. Note: the Quiet function cannot be set up in
Fan and Dry mode;Under the Quiet mode (Display"
11
"signal )and Quiet mode (display "
" Under the Quiet mode) the fan speed is not available.
ClOCK button
Within 5 seconds, pressing + or - button adjusts the present time. Holding down either button above
Press CLOCK button,blinking.
2 seconds increases or decreases the time by 1 minute every 0.5 second and then by 10 minutes every 0.5 second. During blinking
after setting, press CLOCK button again to confirm the setting, and
12
then will be constantly displayed.
T-ON / T-OFF button
Press T-ON button to initiate the auto-ON timer. To cancel the auto-timer program, simply press this button again.
After press of this button,
disappears and "ON "blink s . 00:00 is displayed for ON time setting. Within 5 seconds, press + or - button
to adjust the time value. Every press of either button changes the time setting by 1 minute. Holding down either button rapidly changes
the time setting by 1 minute and then 10 minutes. Within 5 Seconds after setting, press TIMER ON button to confirm.
Press T-OFF button to initiate the auto-off timer. To cancel the auto-timer program, simply press the button again.TIMER OFF setting is
the same as TIMER ON.
13
TURBO button
Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in the shortest time.
In COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air at super
high fan speed.
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X-FAN button
Pressing X-FAN button in COOL or DRY mode, the icon
is displayed and the indoor fan will continue operation for 2 minutes in
order to dry the indoor unit even though you have turned off the unit.
After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO, FAN or HEAT mode.
15
LIGHT button
Press LIGHT button to turn on the display's light and press this button again to turn off the display 's light. If the light is turned on ,
displayed. If the light is turned off,
is
disappears.
Combination of "+" and "-" buttons: About lock
Press "+" and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked,
is displayed. In this case,
blinks three times.
pressing any button,
Combination of "MODE" and "-" buttons:About switch between Fahrenheit and centigrade
At unit OFF, press "MODE" and "-" buttons simultaneously to switch between °C and °F.
Combination of "TEMP" and "CLOCK" buttons:About Energy-saving Function
Press "TEMP" and "CLOCK" simultaneously in COOL mode to start energy-saving function.Nixie tube on the remote controller displays
"SE". Repeat the operation to quit the function.
Combination of "TEMP" and "CLOCK" buttons:About 8°C Heating Function
Press "TEMP" and "CLOCK" simultaneously in HEAT mode to start 8°C Heating Function Nixie tube on the remote controller displays
" and a selected temperature of "8°C".(46°F if Fahrenheit is adopted). Repeat the operation to quit the function.
"
About Back-lighting Function
The unit lights for 4s when energizing for the first time, and 3s for later press.
Replacement of Batteries in Remote Controller
1.Press the back side of remote controller marked with“
of battery box along the arrow direction.
”as shown in the fig, and then push out the cover
2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of “+” polar and “-“ polar are correct.
3. Reinstall the cover of battery box.
Note:
● During operation, point the remote control signal sender at the receiving window
on indoor unit.
● The distance between signal sender and receiving window should be no more than
8m, and there should be no obstacles between them.
● Signal may be interfered easily in the room where there is fluorescent lamp or
wireless telephone; remote controller should be close to indoor unit during operation.
● Replace new batteries of the same model when replacement is required.
● When you don’t use remote controller for a long time, please take out the batteries.
● If the display on remote controller is fuzzy or there’s no display, please replace
batteries.
battery
reinstall
remove
Cover of battery box
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Before choosing the installation site,obtain user approval.
Indoor unit
The indoor unit should be sited in a place where:
1) the restrictions on installation specified in the indoor unit installation drawings are met.
2) both air intake and exhaust have clear paths met.
3) the unit is not in the path of direct sunlight.
4) the unit is away from the source of heat or steam.
5) there is no source of machine oil vapour (this may shorten indoor unit life).
6) cool(warm) air is circulated throughout the room.
7) the unit is away from electronic ignition type fluorwscent lamps (inverter or rapid stert type) as they may shorten
the remote controller range.
8) the unit is at least 1 metre away from any television or radio set(unit may cause interference with the picture or
sound).
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The indoor unit may be mounted in any of the three styles shown here.
Exposed
Half conceated
Concealed
Mounting plate
Molding
Grid(field supply)
Floor lnstallation
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Wall Installation
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Location for securing the installation panel.
700
120
200
17
0
600
220
220
120
570
644
16
0
30
30
Unit:mm
150cm or more
Front grille
Front panel
150cm or more
150cm or more
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1.Removing and installing front pane
Removal method
1)Slide until the 2 stoppers click into place
2)Open the front panel forward and undo the string
3)Remove the front panel
Installation method
1)Attach the front grille and front panel after pulling the
string around them.
2)Close the front panel and slide until the stoppers click
outside.
3 tabs
2.Removing and installing front grille
Casing
Removal method
1).Open the front panel.
2)Remove the 4 screws and remove the front grille while
pulling it forward(3 tabs).
Installation method
1)Secure the front grille with the 4 installation screws
(3 tabs)
Front
grille
Front panel
Remove
front grille
2)Return the front panel to the original position.
3.How to set the different addresses
Remove 4 screws
Open the front panel
When two indoor units are installed in one room, the two wireless remote controllers can be set for different addresses.
1)Remove the front grille.
2)Live the sensor securing plate and remove the front metal plate cover.
3)Remove the electric box(1 screw).
ADRESS
JA
4)Remove the thermistor.
EXIST
1
JA
5)Remove the side metal plate cover(7 tabs).
CUT
2
2)Sensor securing plate
6)Cut the address jumper(JA )on the printed circuit board.
3）Remove 1 screw
4)Thermistor
2)Front metal plate cover
5)Side metal plate cover
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1.Refrigerant piping
1)Drill a hole ( 65mm in diameter ) in the spot indicated by the
symbol in the illustration ad below .
2)The location of the hole is different depending on which side of the pipe is taken out .
3)For piping ,see6.Connecting the refrigerant pipe ,under Indoor Unit Installation(1).
4)Allow space around the pipe for a easier indoor unit pipe connection.
(Unit : mm)
60
45
Wall
Left bottom piping
75
Right bottom piping
75
45
Right back piping
Left/right piping
45
75
45
75
45
Left back piping
CAUTION
Min.allowable length
The suggested shortest pipe length is 2.5m,in order to avoid noise from the outdoor unit and vibration.
(Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is
used.)
See the installation manual for the outdoor unit for the maximum pipe length.
For multi-connections ,see the installation manual for the multi-outdoor unit.
350
wall
45
Refrigerant pipe
75
Floor
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2. Boring a wall hole and installing wall embedded pipe
For walls containing metal frame or metal board ,be sure to use a wall embedded
pipe and wall cover in the feed-through hole to
Be sure to caulk the gaps around the pipes with caulking material to prevent
Inside
Wall embedded pipe
(field supply)
water leakage.
1)Bore a feed-through hole of 65mm in the wall so it has a down slope toward the
Caulking
Φ65
Wall hole cover
(field supply)
outside.
2)Insert a wall pipe into the hole.
Outside
Wall embedded pipe
(field supply)
3)Insert a wall cover into wall pipe .
4)After completing refrigerant piping, wiring, and drain piping, caulk pipe hole gap
with putty.
3. Drain piping
1)Use commercial regid polyvinyl chloride pipe general VP 20 pipe, outer diameter 26mm, inner diameter 20mm for
the drain pipe.
2)The drain hose (outer diameter 18mm at connecting end, 220mm long)is supplied with the indoor unit. Prepare the drain
pipe picture below position.
3)The drain pipe should be inclined downward so that water will flow smoothly without any accumulation.(Should not be
trap.)
4)Insert the drain hose to this depth so it won’t be pulled out of the drain pipe.
5)Insulate the indoor drain pipe with 10mm or more of insulation material to prevent condensation.
6)Remove the air filters and pour some water into the drain pan to check the water flows smoothly.
150
Must be no trap
100
Do not touch water
100
Drain hose
Reducer
50mm
or more
Vinyl chloride
drain pipe
CAUTION
Use polyvinyl chloride adhesive agent for gluing. Failure to do so may cause water leakage.
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4. Installing indoor unit
3 tabs
4-1.Preparation
Open the front panel, remove the 4 screws and dismount the front grille while pulling it forward.
Casing
Front
grille
Follow the arrows to disengage the clasps on the
front case to remove it.
Follow the procedure below when removing the slit
Front panel
Remove
front grille
portions.
For Moldings
Remove 4 screws
Open the front panel
Remove the pillars. (Remove the slit portions on the
bottom frame using nippers.)
2)Upper casing
For Side Piping
Remove the pillars.
1)Remove the 7screws.
2)Remove the upper casing (2 tabs).
3)Remove the left and right casings (2 tabs on each
side ).
4)Remove the slit portions on the bottom frame and
casings using nippers .
5)Return by following the steps in reverse order(3>2>1).
3)Side
casings
3)Side
casings
Remove 7 screws
Casing
Remove the pillar
Bottom frame
Casing
Remove the pillar
Remove the pillar
4-2.Installation
Secure using 6 screws for floor installations.(Do not forget to secure to the rear wall.)
For wall installations, secure the mounting plate using 5 screws and the indoor unit using 4 screws.
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The mounting plate should be installed on a wall which can support the weight of the indoor unit.
1) Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the boring
points on the wall.
2) Secure the mounting plate to the wall with screws.
Floor Installation
Wall Installation
Casing
200m
m
Molding
6screws
6screws
3) Once refrigerant piping and drain piping connections are complete, fill in the gap of the through hole with putty. A gap
can lead to condensation on the refrigerant pipe, and drain pipe, and the entry of insects into the pipes.
4) Attach the front panel and front grille in their original positions once all connections are complete.
5. Flaring the pipe end
1)Cut the pipe end with a pipe cutter.
2)Remove burrs with the cut surface facing downward so that the chips do not enter the pipe.
3)Fit the flare nut on the pipe.
4)Flare the pipe.
5)Check that the flaring is properly made.
WARNING
1)
2)
3)
4)
5)
DO not use mineral oil on flared part.
Prevent mineral oil from getting into the system as this would reduce the lifetime of the units.
Never use piping which had been used for previous installations. Only use parts which are delivered with the unit.
Do never install a drier to this R410A unit in order to guarantee its lifetime.
The drying material may dissolve and damage the system.
6) Incomplete flaring may cause refrigerant gas leakage.
Flaring
Set exactly at the position shown below
Flare tool for R410A
A
Cut exactly
at right
angles
Die
Renove
burrs
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A
Conventional flare tool
Clutch-type
Clutch-type
(Rigid-type)
Wing-nut type
(lmperial-type)
0-0.5mm
1.0-1.5mm
1.5-2.0mm
Flare’s inner
surface must
be scratch-free
The pipe end must
be evenly flared in
a perfect circle
Make sure that the
flare nut is fitted
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6.Connecting the refrigerant pipe
1)Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and gas leaks.
Open-end wrench (fixed)
Coat here with refrigeration oil
Flare nut
Wrench
Connection pipe
Indoor unit tubing
2)Align the centres of both flares and tighten the flares and tighten the flare nuts 3 or 4 turns by hand.
Then tighten them fully with the torque wrenches.
3)To prevent gas leakage, apply refrigeration oil on both inner and outer surfaces in the flare. (Use refrigeration oil fo r
R410A.)
Flare nut tightening torque
Gas side
Liquid side
25/35 class
50 class
25/35/50 class
3/8 inch
1/2 inch
1/4 inch
32.7-39.9 N.m
(333-407kfg.cm)
49.5-60.3 N.m
(505-615kgf.cm)
14.2-17.2 N.m
(144-175kgf.cm)
Be sure to
place a cap.
6-1.Caution on piping handling
1)Protect the open end of the pipe against dust and moisture.
2)All pipe bends should be as gentle as possible. Use a pipe bender for
bending.
If no flare cap is
available,cover
the flare mouth
with tape to keep
dirt or water out.
(Bending radius should be 30 to 40mm or larger.)
Inter-unit wiring
6-2. Selection of copper and heat insulation materials
When using commercial copper pipes and fittings, observe the
following:
1)Insulation material: Polyethylene foam
Heat transfer rate:0.041 to 0.052W/mK(0.035 to 0.045kca/(mh Refrigerant gas pipe’s surface temperature reaches 110 max.
Choose heat insulation materials that will withstand this temperature.
Gas pipe
Liquid pipe
Liquid pipe
insulation
Gas pipe
insulstion
Finising tape
2)Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.
Gas side
25/35 class
O.D. 9.55mm
Liquid side
50class
O.D. 12.7mm
Thickness 0.8mm
Gas pipe thermal insulation
25/35 class
O.D. 6.4mm
I.D. 12-15mm
Liquid pipe
thermal insulation
50class
I.D. 14-16mm
I.D. 8-10mm
Thickness 10mm Min.
3)Use separate thermal insulation pipes for gas and liquid refrigerant pipes.
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7.Checking for gas leakage
1)Check for leakage of gas after air purging
2)See the sections on air purges and gas leak checks in
the installation manual for the outdoor unit.
Check for leakage here
Apply soapy water and check carefully for leaking gas.
wipe soapy water off after
the check is complete.
8.Attaching the connection pipe
Attach the pipe after checking for gas leakage, described above.
1)Cut the insulated portion of the on-site piping, matching it up with the connecting portion.
2)Secure the slit on the refrigerant piping side with the butt joint on the auxiliary piping using the tape, making sure there
are no gaps.
3)Wrap the slit and butt joint with the included insulation sheet, making sure there are no gaps.
Refrigerant
pipe
Slit
Refrigerant
pipe
Refrigerant
pipe
Slit
Insulation sheet
Tape
Auxiliary pipe
CAUTION
1)Insulate the joint of the pipes securely.
Incomplete insulation may lead to water leakage.
2)Push the pipe inside so it does not place undue force on the front grille.
9.Connecting the drain hose
Insert the supplied C drain hose into the socket
of the drain pan.
Fully insert the drain hose until it adheres to a
seat of the socket.
Drain pan
Seal
Drain hose
Drain pan
Seal
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10.Wiring
With a Multi indoor unit, install as described in the installation manual supplied with the Multi outdoor unit.
Live the sensor securing plate, remove the front metal plate cover, and connect the branch wiring to the terminal block.
1)Strip wire ends (15mm)
2)Mach wire colours with terminal numbers on indoor and outdoor unit’s terminal blocks and firmly screw wires to the
corresponding terminals.
3)Connect the earth wires to the corresponding terminals.
4)Pull wires to make sure that they are securely latches up, then retain wires with wire retainer.
5)In case of connecting to an adapter system, Run the remote controller cable and attach the S21. (Refer to 11. When
connecting go an system.)
Sensor securing plate
Front metal
plate cover
Firmly secure wire
retainer so that
wires sustain no
external stress.
1
2
3
Terminal block
Electrical
component
box
Wire retainer
Use the specified wire type.
Indoor unit
Shape wires so
that the front metal
plate cover will fit
securely.
Firmly fix the wires with the
terminal screws
Outdoor unit
When wire length exceeds 10m,
use 2.0mmdiameter wires
H05VV
Firmly fix the wires with the
terminal screws
CAUTION
1)Do not use tapped wires, stranded wires, extensioncords, or starburst connections, as they may cause overheating,
electrical shock, or fire.
2)Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc, from
the terminal block.) Doing so may cause electric shock or fire.)
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Steps
Procedure
1. Remove panel
Pull sliding clasps at both sides of panel,
pull out the panel outwards and then
move the panel upwards to remove it.
panel
sliding clasps
2. Remove filter sub-assy
Pull the damping clasps at upper/lower
side of filter sub-assy, and then move the
filter sub-assy outwards to remove it.
filter sub-assy
damping clasps
3. Remove front case
Remove 4 screws fixing the front case,
and then pull the front case outwards to
remove it.
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screws
front case
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4. Remove swing parts
swing parts
screw
Remove 2 screws fixing the swing parts,
and then pull the swing parts outwards to
remove it.
5. Remove water tray
Remove 2 screws fixing water tray, and
then pull the water tray outwards to
remove it.
water tray
screws
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box, and then pull the electric box
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nuts
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clasps
press plate of
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