Quietside QSVMI-09A, QSVMI-12A, QSVMI-18A Service Manual

1

Summary and features

Summary and features

Model

Service Manual

QSVMI-09A
QSVMI-12A
QSVMI-18A



Model

QSVMI-09A

QSVMI-12A

QSVMI-18A

Fan Motor Speed (r/min)
(SH/H/M/L)

1150/1050/900/750 1150/1050/900/750 1250/1050/950/800

Output of Fan Motor (w) 20 20 20

Input Power of Heater (w) / / /

Fan Motor Capacitor (uF) 1 1 1

Fan Motor RLA(A) 0.26 0.26 0.26

Fan Type-Piece Cross flow fan – 1 Cross flow fan – 1 Cross flow fan – 1

Diameter-Length (

inch) Φ3.82×22.95 Φ3.82×22.95 Φ3.62×24.25

Evaporator Aluminum fin-copper tube Aluminum fin-copper tube Aluminum fin-copper tube

Pipe Diameter (

inch) Φ0.28 Φ0.28 Φ0.28

Row-Fin Gap(

inch) 2-0.06 2-0.06 2.5 -0.06

Coil length (l) x height (H) x coil
width (L)

(inch)

22.83X8.98X1 22.83X8.98X1 26.81X12.76X1.5

Swing Motor Model MP28VB MP28VB MP28EC

Output of Swing Motor (W) 2 2 2

Fus e (A)

PCB 3.15A

Transformer 0.2A

PCB 3.15A

Transformer 0.2A

PCB 3.15A

Transformer 0.2A
Sound Pressure Level dB (A)
(H/M/L)

37/34/31/28 38/34/31/28 40/34/32/30

Sound Power Level dB (A)
(H/M/L)

47/44/41/38 48/44/41/38 50/44/42/40

Dimension (W/H/D) (

inch) 30.32X9.84X7.48 30.32X9.84X7.48 32.68X11.22X7.87

Dimension of Package (L/W/H)(
inch)

33.66X12.99X10.70 33.66X12.99X10.70 35.67X15.16X10.43

Net Weight /Gross Weight

(lb) 18.74/27.56 18.74/27.56 24.25/30.86

Technical specifications

Technical specifications

2

The above data is subject to change without notice. Please refer to the nameplate of the unit.

Front panel

Air inlet

Displayer

Air guide board

Air out

Remote control

Heating

Cooling

Setting temp.

Auto

Power/Run

Fan Dehumidify

Remote control receiving window

Water drainage pipe

Connection pipe
and connection wire

Wrapping tape

Amplified sketch for displayer

Part name

Part name3

Air inlet grid

Mark for left outlet pipe hole

Top view diagram

Mark for right outlet pipe hole

Back view

Ceiling

4

Outline and installation dimension

Outline and installation dimension

QSVMI-09A QSVMI-12A

9.84 inch

30.32 inch

7.48 inch

7.87 inch

2.76 inch

7.87 inch

Air inlet grid

Mark for left outlet pipe hole Top view diagram Mark for right outlet pipe hole

Back view

Ceiling

QSVMI-18A

11.22 inch

32.68 inch

7.87 inch

7.87 inch

2.76 inch

7.87 inch

Electrical circuit diagram

Electrical circuit diagram

55

55

5

These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.

QSVMI-09A QSVMI-12A

QSVMI-18A

66

66

6

 
 

Controller Function Manual and Operating Method

Controller Function

The unit for temperature is centigrade in this function manual. If there's Fahrenheit, the transition relation is
TFahrenheit =TCentigrade 1.8+32.

Temperature Parameter

Indoor ambient temperature (T

amb.

)

Indoor copper tube temperature (T

tube

)

Evaporator inlet pipe temperature (T

inlet pipe

)

Evaporator outlet pipe temperature (T

outlet pipe

)

System Basic Function

2.1 Cooling Mode

(1) Fan motor and swing works under setting status
(2) Indoor unit will run under the original status when outdoor unit malfunction or stop to run protection, malfunction
displays.
(3) The fan motor stops when the modes conflicts.
The temperature setting range is 60.8-86

under the mode.

2.2 Dry Mode

(1) Fan motor runs under low speed, swing runs by setting status.
(2) Indoor unit will run under the original status when outdoor unit malfunction or stop to run protection, malfunction
displays.
The temperature setting range is 60.8-86 under the mode.

2.3 Fan Mode

In this mode, only indoor fan is running at setting status. Under auto fan speed, it will run by cooling auto fan.

2.4 Heating Mode

(1) The indoor unit goes to anti-cool wind when the unit is ON; it goes to blow residual heat when the unit is OFF and
indoor fan motor was ON before.
(2) Protection function, compressor is OFF as malfunction (including any temperature sensor malfunction), indoor fan
motor runs with blowing residual heat.
(3) Anti-cool wind: indoor fan motor runs after 2 minutes delayed.
Blow residual heat: the indoor unit runs 60S with the original fan speed then stop; the fan speed cannot shift and
the guide board changes to the heating minimum angle when blowing residual heat.
(4) Indoor fan motor stops and does not blow residual under defrost and oil return; the temperature sensor of indoor
unit cannot be inspected during defrost, oil return and exit in 3min process.
The temperature setting range is 60.8-86 under the mode.

2.5 Auto Mode

In this mode, the unit will select the cooling, heating running mode or fan mode automatically according to the change
of ambient temperature. Protection function is the same as that in heating, cooling mode.

2.6 Mode Clash

When the indoor receiving the information mode clash from outdoor unit and the digit is 1, the indoor load (indoor fan
motor, swing) stops, the malfunction indicator displays, the mode send to outdoor unit is the mode receiving by remote
control.
When the time of TIMER ON reach, if the indoor receiving the information mode clash from outdoor unit and the digit is
1, the indoor load (indoor fan motor, swing) stops, the malfunction indicator displays, the mode send to outdoor unit is
the mode receiving by remote control.

3. Others

3.1 Buzzer

When the controller energized, receiving signal from remote controller and auto button, the buzzer will give out
beep.

3.2 Auto Button

Press the button when turn off the unit, the unit runs by auto mode, indoor fan motor runs under auto fan speed,
turn on swing. Press auto button under the unit is ON, it will OFF.

3.3 Auto Fan Speed Control

Under cooling, heating, fan mode, the indoor fan motor will select the high, med, low fan speed automatically
according to the change of ambient temperature, the auto fan speed is low speed under FAN mode. The spacing of
shift each fan speed is 3.5 min.

3.4 Sleep

O

F

O

F

O

F

In cooling and fan mode, after setting sleep procedure 1h, Tpreset will increase 33.8 ; 2h later, Tpreset will increase 35.6

,
then remain the temperature, Tpreset will not exceed 86 ; under heating, after setting sleep procedure 1h, Tpreset
will decrease 33.8 ; 2h later, Tpreset will decrease 35.6 , then remain the temperature, Tpreset will not exceed 60.8 ; the
setting temperature will not change under fan and auto mode.

3.5 TIMER Function

General timer:

a. TIMER ON: The timer on can be set when the unit is OFF, the controller will run under original setting mode

when the time of timer on reaches, the timer space is 0.5h, and setting range is 0.5-24h.

b. TIMER OFF: The timer off can be set when the unit is ON, the unit is OFF when the timer time reaches, the

timer space is 0.5h, and setting range is 0.5-24h.

Clock timer:

a. TIMER ON: If set timer on when the unit is running, it will goes to run; if set the timer on when the unit is off,

the unit will run with the pre-setting mode when the time of setting timer on reaches.

b. TIMER OFF: If set timer off when the unit is off, when setting timer off, the unit will maintain stand-by status; if

set timer off when the unit is on, when the time of setting timer off reaches, the system will stop to run.

c. TIMER changing: When the unit under timer status, it can set ON and OFF by remote control, and reset timer

time, the unit will run under the last setting status.
Set timer on and timer off together when the unit is running, the unit will maintain the current status, once the time
of setting timer off reaches, the unit will stop to work.
Set timer on and timer off together when the unit is off, the unit will maintain off status until the time of timer on
reaches, the unit will start to work, hereafter the time of timer on reaches everyday, the unit will run under the
original setting mode, and the unit stop to work when the time of timer off reaches.
When the time of setting timer on and setting timer off is the same, the unit is off.

3.6 Memory Function

Memory contents: mode, swing (up and down), light, set Temp., set fan speed, general timer (clock timer doesn’t
memory)
The unit will on automatically with memory content after re-energized.
There is no setting timer function in the last remote control order, and the system memory the last remote control
order and working under that setting method.
There is general timer function in the last remote control order, the system is energized before the timer time
haven’t reach, the unit will memory timer function of the last remote control order after re-energized, and the timer time
will star to calculate after re-energized.
There is timer function in the last remote control order, but the timer time reaches, the system will de-energize after
timer on and timer off, after re-energized, the system will memory the running status which before power-off, and no
timer action; the clock timer doesn’t memory.

3.7 I FEEL Function

If controller receives I FEEL command, it will run at the ambient temp sent by remote controller (but it will also run at
sampling temp. of AC temp sensor itself except defrost and anti-cool air). The remote controller will send ambient temp
to controller every 10min, so if the controller hasn’t received ambient temp from remote controller after 11min, it will run
at temp. of AC itself. If this function is not set, all ambient temp will adopt sampling value of AC temp. sensor itself.

3.8 Turbo Function

The TURBO function can be set only under COOLING and HEATING mode, when controller receiving turbo order, the
indoor fan motor will run with high speed, and send turbo signal and high speed to outdoor unit.

3.9 Swing (up and down) Control

After energization, up & down swing motor will totate guide louver to position 0 to close air outlet. After turn on the unit,
if swing function has not been set, up & down guide louver will clockwise turn to position D under heating mode, or
clockwise

tur

n to level position L1 under other modes. If the unit is turn on with
swing function setting, guide louver will swing between L and D. There are 7 kinds
of swing states of guide louver. Position L,A,B,C,D, swing between L and D, stop
between L and D (included angle L and D is equiangular). Upon stop of unit, guide
louver will close to position 0. Swing action is valid only when swing command is
set and indoor fan is running.

°

°

Heating Angle

Cooling Angle

3.10 Cold Plasm Function

Remote control the cold plasm function to ON and turn on the cold plasm when the
fan motor is ON; remote control the cold plasm to OFF or turn off the cold plasm when the dan motor is OFF.

O

F

O

F

O

F

O

F

O

F

O

F

4. Display

4.1 Basic Display

(1) When the unit is energized, the display symbol display, then only power lamp is light.
(2) When use remote control to turn on the unit, the running LED is light, and the current setting running mode lamp
displayed at the same time.
COOLING: running lamp and cooling lamp are light; HEATING: running lamp and heating lamp are light;
DRY: running lamp and dry lamp are light; FAN: running lamp and fan lamp are light;
AUTO: auto lamp, running lamp and actual running mode lamp are light.
(3) If turn off the LIGHT button, all the display is off (it is valid when the unit is OFF).
(4) After set SLEEP function, the display maintains the original display status, it means the light switch does not
influence sleep function.

4.2 Dual-8 Display

If the digital pipe display current setting temperature, the setting temperature range is 60.8-86 . It will display 77 for
cooling and fan under auto mode, and display 68 for heating, and the cooling controller displays 77 . The
temperature range is 32-140 when the indoor temperature displays.

4.3 Fan Speed Display

There are 3 status dynamic circle display for fan symbol, they are middle two segments, middle four segments and
display six segments, and the middle two segments is displaying. The fan speed symbol blinks the fastest when
remote control super-fan; the fan speed symbol blinks the lowest when remote control low-fan; the blink speed of
display symbol is between high fan and low fan when remote control med fan; the blink speed of display depends on
the indoor actual running speed when remote control auto fan speed; if the indoor fan motor stops, it blink display at
the lowest speed.

4.4 Indoor unit Malfunction Lamp Display

Mal Malfunction Name Dual-8

Display

Running

Lamp

Heating

Lamp

Cooling

Lamp
The system is abnormal (anti-high temp. power off,
cooling overload)

H4 Blink 4 times

Compressor overload protection H3 Blink 3 times
Module protection H5 Blink 5 times
High-pressure protection E1 Blink once
Anti-freeze protection power-off E2 Blink Twice
Discharge temperature protection E4 Blink 4 times
Low voltage over-current protection E5 Blink 5 times
Mode Clash E7 Blink 7 times
Communication malfunction E6 Blink 6 times
Defrost or heating oil return H1 Blink once
The indoor ambient temperature sensor is open, short
circuit

F1 Blink once

Any indoor evaporator temperature sensor is open,
short circuit

F2 Blink twice

The outdoor ambient temperature sensor is open,
short circuit

F3 Blink 3 times

The outdoor condenser temperature sensor is open,
short circuit

F4 Blink 4 times

The outdoor discharge temperature sensor is open,
short circuit

F5 Blink 5 times

Fail to start up H7 Blink 7 times
PFC malfunction HC Blink 6 times
Compressor demagnetizing protection HE Blink 14 times
The malfunction below need used by remote controller, it will display when press sleep button 6 times continuously in
3S, and exit inspect state(it is not valid under auto mode) automatically in 5min, or will exit when press sleep button 6
times continuously in 3S.
Cooling overload down frequency F6 Blink 6 times
Unit overflow down frequency F8 Blink 8 times
Compressor discharge down frequency F9 Blink 9 times
Unit AC voltage decreasing down frequency E0 Blink 10 times
Heating anti-high temperature down frequency H0 Blink 10 times
Anti-cool air protection E9 Blink 9 times
Cooling oil return F7 Blink 7 times

Note: The malfunction code will circular display when different malfunctions exist together. The indicator will light 0.5S
and display 0.5S when it blinks. The indoor temperature sensor malfunction will not inspected under defr ost, oil return.

O

F

O

F

O

F

O

F

O

F

Disassemble Front Panel

Lift the front panel upward. Firstly, screw off a screw

fixing the upper protection plate at the receiving
window and remove the protection plate. Then, pull

away the connection terminal. Pull the panel outward
with force along the groove fixing the panel of the
panel body to remove the panel

Disassemble Cope of Electric Box

Firstly, screw off the screw fixing the cope of electric box,

open the cope of electric box, loose the clasp and remove

the cope of electric box.

Disassemble Filter

Push the filter inward, and then pull it upward to

remove it.

Protection plate

Panel

the cope of electric box.

clasp

Filter

Screws

Dissassembly Procedures

Dissassembly Procedures

77

77

7

Operating Procedures / Photos

Disassemble Lower Guide Louver

Manually bend the lower guide louver to loose the

clasp at the guide louver. Remove the lower guide
louver.(Note:to remove the upper guide louver,you

must open the front case first, then screw off the screws
fixing the upper guide louver and the water tray , bend

the upper guide louver and remove the upper guide louver)

Guide Louver

clasp

Disassemble Front Case

Unscrew the three screw covers at the front case,

unscrew the three screws, pull open the clasp at the

front case, and remove the front case.

clasp

sensor

screw covers

screws

Disassemble Water Tray

Screw off the fixing screws fixing the water tray with a

screw driver. Loose the clasp at the other end and pull

out the terminal board of the step motor. Pull upward

the water tray and take it out. Remove the water tray.

Water Tray

Operating Procedures / Photos

Operating Procedures / Photos

Loosen the three clasps, and pull upward to

remove the cover of the electric box.

Disassemble Cover of Electric Box

cover of the electric box

clasp

Disassemble Electric Box

Remove the grounding wire of the evaporator.

Take out the pipe temp. sensor.

Unplug the plugging connector of the indoor motor

at the electric box, use screwdriver to

unscrew the screw fixing the electric box,

loose the clasp and remove the electric box.

pipe temp. sensor

room sensor

grounding wire

plugging connector

clasp

screw

Disassemble Evaporator

rear pipe clamp

screw

Screw off one screw which fix the connection

board clamp.Take down the connection board

clamp.

Screw off 4 screws fixing the left and right side of

the evaporator, then elevate left side the evapora-

tor to remove it backward.

CAUTION:

When repair, Carefully take out the evaporator and

pay attention to protect the connecting pipe.

Operating Procedures / Photos

Evaporator

clasp

screw

screw

Evaporator

Disassemble Motor

Use screwdriver to unscrew the two screws fixing

the motor clamp, and remove the motor clamp.

Unscrew the three holding screws at the shaft

sleeve, and remove the motor.

motor clamp

Screw

screw

Motor

Axial fan

Disassemble Cross Flow Fan

After remove the motor, pull out it from the

left bearing holder.

Cross Flow Fan

Bearing Holder

Operating Procedures / Photos

8

Explosive view and spare parts list

Explosive view and spare parts list

Exploded View of Component 1

1 Wall-Mounting Frame 1
2Rear Case 1
3Evaporator Assy 1
4 Cros s Flow Fan 1
5 Ring of Bearing 1
6/ /
7 Drainage Pipe 1
8 Water Tray 1

9 Swing Louver 12
10 Swing Linkage 1 1
11 Swing Linkage 2 1
12 Front Cas e 1
13 Front Panel 1
14 Decorate piece 1
15 Remote control YT1F 1
16 Filter 2
17 Receiver Board D5K3 1
18 Screw Cover 3
19 Guide Louver 1 1
20 Guide Louver 2 1
21 Moto r MP 2 8VB 1
22 Motor Clamp 1
23 Motor FN14P-PG 1
24 Electric box cover 1
25 Covering plate 1
26 Terminal board T4B3A 1
27 Electric box 1
28 Main PCB MB803F2AJ 1
29 Room Sensor15K 1

1
1

1
31 Jumping Connector 1
32 Transformer 48X26P 1
33 Wire clamp 1
34 Rear clamp 1
35 Connecting Cable 1
36 swing louver clamp 1
37 swing louver 1
38 swing louver(up) 1
39 swing louver(down) 1

Qty

Part Code

30 Tube Sensor 20K

No Description

QSVMI-09A

01252220
222020016
010020534

10352001

76512203

/

0523001401

201820270

10512088

10582002

10582003
200022107

200022092C

68012019

30510049
111200511

30545041
242520062
105120332
105120342

15012086

26112014
150120763

20122082

20112058

42011233

20112057

30038004
390000451

3900019814
3900019815
3900019816
4202300102

43110293

10582408

10542004

10542005

71010103

24242001

/

10582409

Components and Parts List 1

The above data are subject to be changed without notice.

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



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























































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Exploded View of Component 2

Part Code

QSVMI-12A

1 Wall-Mounting Frame 01252384 1
2 Rear Case 222020503 1
3 Evaporator Assy 01002250 1
4 Cross Flow Fan 10352005 1
5 Ring of Bearing 76712015 1
6\ \ \
7 Drainage Pipe 0523001401 1
8 Water Tray 201820306 1

9 Swing Louver 105120413 12
10 Swing Linkage 105824397 1
11 Front Case `200022958 1
12 Screw Cover 242520072 3
13 Filter 11122440 2
14 Remote Control YT1F 30510049 1
15 Decorate Piece 68012019 1
16 Receiver Board 30545042 1
17 Front Panel 200022921 1
18 Guide Louver 261120432 1
19 Guide Louver 261120422 1
20 Motor MP28EC 15212002 1
21 \ \ \
22 \ \ \
23 Right Motor Clamp 26112429 1
24 Bearing Holder 26152423 1
25 Motor FN20M-PG 150120873 1
26 Electric Box Cover 20122081 1
27 Terminal Board T4B3A 42011233 1
28 Covering Plate 20112060 1
29 Electric Box 20112059 1
30 Main PCB M803F2AJ 30038004 1
31 Transformer 48X26P 43110293 1
32 Wire Clamp 71010003 1
33 Rear Clamp 26112430 1
34 Connecting Cable 400204056 1
35 \ \ \
36 Room Sensor 15K 390000451 1

3900019814 1
3900019815 1
3900019816 1

37 Tube Sensor 20K

No Description Qty

Components and Parts List 2

The above data are subject to be changed without notice.

Exploded View of Component 3

Part Code

QSVMI-18A

1 Wall-Mounting Frame 01252004 1
2 Rear Case 22202329 1
3 Fan Bearing 76512203 1
4 Screw Cover 24252015 3
5 Swing Louverb 105120472 11
5 Swing Louver 10512430 1
6 Swing Link 1 10582057 1
7 Swing Link 2 10582058 1
8 Water Tray 20182057 1
9 Guide Louver（up

）

10512085 1

10 Guide Louver（down

）

10512086 1
11 Cross Flow Fan 10352022 1
12 Evaporator Assy 01002913 1
13 Drainage Pipe 05230014 1
14 Evaporator Support 24212067 1
15 Filter 11122048 2
16 Front Case 200026524 1
17 Front Panel 2000284402 1
18 Remote Controller YT1F 30510049 1
19 Displaying Light Board 22432071 1
20 Electric Box Cover 1 20112019 1
21 Wire Clamp 71010103 1
22 Terminal Board (3位) 4201026601 1
23 Electric Box Cover 20112020 1
24 Main PCB 30038022 1
25 Transformer 57X25F 43110257 1
26 Room Sensor 15k 390001912 1

3900019814 1
3900019815 1

3900019816 1
28 Sensor Insert 42020063 3
29 Electric Box 20112018 1
30 Lower Shield of Electric Box 01592037 1
31 Upper Shield of Electric Box 01592038 1
32 Stepping Motor MP35XX 15213001 1
33 Motor Clamp 26112095 1
34 Helicoid tongue 26252009 1
35 Motor FN20K-PG 15012718 1
36 Pipe Clamp 24242001 1
37 Connecting Cable / 1
38 Plank Cable 4003004201 1
39 Jumping Connector 4202300106 1

No Description Qty

27 Tube Sensor 20k

Components and Parts List 3

The above data are subject to be changed without notice.

QUIETSIDE CORPORATION
www.quietside.com

West Off ice
8750 Pioneer Blvd.
Santa Fe Springs, CA 90670 USA
Phone: [phone]
Fax: [phone]

East Office
6 Pine Hill Drive
Carlisle, PA 17013
Phone: [phone]
Fax: [phone]

TX Office
3001 Northern Cross Blvd. Suite 361
Fort Worth, TX 76137
Phone: [phone]
Fax: [phone]

66129908658