Mars Comfort-Aire Century VFH-MB Series User manual

www.marsdelivers.com
Installation & Operation Manual
VFH-MB Series
Inverter Multi Zone Ductless Mini-Split
B-VFH09MB-1A
B-VFH12MB-1A
B-VFH18MB-1
B-VFH24MB-1

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3

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
4
Table of Contents
Part Ė: Technical Information.......................................................................5
1. Summary......................................................................................................................5
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6SHFL¿FDWLRQ6KHHW............................................................................................................6
1RLVH&XUYH.......................................................................................................................8
3. Outline Dimension Diagram..........................................................................9
4. Refrigerant System Diagram.......................................................................10
5. Electrical Part............................................................................................................11
:LULQJ'LDJUDP.................................................................................................................11
3&%3ULQWHG'LDJUDP .......................................................................................................12
6.
Function and Control...........................................................................................13
5HPRWH&RQWUROOHU,QWURGXFWLRQ .......................................................................................13
%ULHI'HVFULSWLRQRI0RGHVDQG)XQFWLRQV........................................................................18
Part ė: Installation and Maintenance ....................................................22
7. Notes for Installation and Maintenance...............................................22
8. Installation...................................................................................................................24
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,QVWDOODWLRQ3DUWVFKHFNLQJ ..............................................................................................26
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(OHFWULF&RQQHFWLRQ5HTXLUHPHQW.....................................................................................26
,QVWDOODWLRQRI,QGRRU8QLW..................................................................................................26
&KHFNDIWHU,QVWDOODWLRQDQG7HVWRSHUDWLRQ ......................................................................29
9. Maintenance...............................................................................................................30
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3URFHGXUHRI7URXEOHVKRRWLQJ ..........................................................................................32
10.
Exploded View and Parts List
...................................................................37
11.
Removal Procedure............................................................................................45
Appendix:...........................................................................................................................52
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$SSHQGL[3LSHH[SDQGLQJPHWKRG.......................................................................................53
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Installation & Operation Manual - VFH-MB 09/12/18/24 Series
5
1. Summary
Indoor Unit:
Part I: Technical Information
Remote Controller:
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FAN
MODE
ON/OFF

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
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Installation & Operation Manual - VFH-MB 09/12/18/24 Series
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Installation & Operation Manual - VFH-MB 09/12/18/24 Series
8
2.2 Noise Curve
0
10
Noice/dB(A)
20
30
40
50
60
Low Middle Super HighHigh
Indoor Fan Motor Rotating Speed
12K
09K
24K
18K
20
30
40
50
SL L ML MHM H SH
Indoor fan motor rating speed
Noise/dB(A)
B-VFH18MB-1/B-VFH24MB-1
B-VFH09MB-1/B-VFH12MB-1

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
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3. Outline Dimension Diagram
6 3/8
6 2/7
2/5
3 1/7
1 3/8
21 2/7 6 3/7
Φ2 1/6 Φ2 1/6
5 2/3 27 7 4/9
Φ2 3/4
Φ2 3/4 Φ2 3/4
Φ1/2
1 3/4
2 1/6
2 1/6
4 2/3
5 1/8 4
2
Φ2 3/4
7 29 3/8 10
'
+
W
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%9)+0% 46 3/8 12 5/6 10 2/5
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Installation & Operation Manual - VFH-MB 09/12/18/24 Series
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4. Refrigerant System Diagram
Outdoor
Indoor
D1
C1
B1
A1
filter
A heat exchanger
gas -liquid separator
inverter compressor
discharge silencer
discharge temperature
sensor
SP
4-way valve
outdoor heat exchanger
fan
high pressure switch
B heat exchanger
C heat exchanger
D heat exchanger
filter
filter
filter
filter
Note: Not available for 14K/18K
model
C2
C3
D3
D2
B3
B2
A2
A3
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
Note: Not available for 14K/18K model

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
11
5. Electrical Part
5.1 Wiring Diagram
Ɣ,QVWUXFWLRQ
6\PERO 6\PERO&RORU 6\PERO 6\PERO&RORU 6\PERO 1DPH
:+ :KLWH GN *UHHQ &$3 -XPSHUFDS
YE <HOORZ %1 %URZQ &203 &RPSUHVVRU
5' 5HG %8 %OXH *URXQGLQJZLUH
YEGN <HOORZ*UHHQ %. %ODFN //
97 9LROHW 2* 2UDQJH //
1RWH-XPSHUFDSLVXVHGWRGHWHUPLQHIDQVSHHGDQGWKHVZLQJDQJOHRIKRUL]RQWDOORYHUIRUWKLVPRGHO
7KHVHZLULQJGLDJUDPVDUHVXEMHFWWRFKDQJHZLWKRXWQRWLFHSOHDVHUHIHUWRWKHRQHVXSSOLHGZLWKWKHXQLW
63632168
AP1
0
0
M2
SWING-LR
CAP
JUMP
PRINTED CIRCUIT BOARD
ROOM
RT1 RT2
TUBE
SENSOR SENSOR
ROOM TUBE
DC-MOTOR
FAN MOTOR
STEPPING
RECEIVER
DISPLAY
DISP2DISP1
TEMP. TEMP.
BOARD
AND
SWING-UD1 SWING-UD2
LEFT-RIGHT UP-DOWN
MOTOR STEPPING MOTOR STEPPING MOTOR
UP-DOWN
M3 M4
AP2
OUTDOOR UNIT
BLOCK
CABLE
TERMINAL
N(1)
2
3
XT
COM-OUT
AC-L
N
PE
BU
BK
BN
YEGN
ELECTRIC BOX
G
G
EVAPORATOR
YEGN
YEGN
AP3
MANUAL PANEL
CONNECTOR
COM-INNER1
(optional)
3
2
N(1)
M1

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
12
5.2 PCB Printed Diagram
ƔTop view
ƔBottom view
1 Neutral wire
2 DC fan
3 Auto button
4 Small up&down swing
5 Left&right swing
6 Big up&down swing
7 Interface of wired controller
8 Display interface
9 Ambient temperature sensor
10 Tube temperature sensor
11 Communication interface between
indoor unit and outdoor unit
12 Interface of live wire
13 Fuse
14 Jumper interface
1 234 5
6
7
8
019
11312114

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
13
6. Function and Control
6.1 Remote Controller Introduction
1
2
3
4
5
6
7
8
9
10
11
12
button
button
X-FAN button
QUIET button
SLEEP button
TEMP button
I FEEL button
13
14
15
16
TURBO button
LIGHT button
button
TIMER ON/
TIMER OFF button
CLOCK button
1
2
3
4
ON/OFF button
FAN button
+/- button
MODE button
ON/OFF button
FAN button
+/- button
MODE button
3
4
2
1
(before opening cover
/
1
15
5
2
6
3
12
16
4
11
8
9
13
7
(after opening cover
10
14
Buttons on Remote Controller
Introduction for Icons on Display Screen
Send signal
Turbo mode
8ć(46 ) heating function
Set temperature
Set time
X-FAN function
TIMER ON /TIMER OFF
Child lock
Up & down swing
Left & right swing
Set fan speed
Light
Temp. display type
: Set temp.
: Outdoor ambient temp.
: Indoor ambient temp.
Sleep mode
Clock
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operation mode
I feel
Healthy mode
Scavenging functions
Quiet
Ɖ
This is a general remote controller. S
o
models have this function while some
not. Please refer to the actual models.
Introduction for Buttons on Remote Controller
Note:
•7KLVLVDJHQHUDOXVHUHPRWHFRQWUROOHULWisXVHGIRUDLUFRQGLWLRQHUV ZLWKPXOWLIXQFWLRQ)RUVRPHIXQFWLRQsZKLFKWKHPRGHO
GRHVQWKDYHLISUHVVing WKHFRUUHVSRQGLQJEXWWRQRQWKHUHPRWHFRQWUROOHU,WKHXQLWZLOONHHSWKH RULJLQDOUXQQLQJVWDWXV
•$IWHUapplyingSRZHUWKHDLUFRQGLWLRQHUZLOOemitDVRXQG When operation indicator " " is ON (red indicator), you can operate the air
conditioner by using remote controller.
•8QGHURQVWDWXVSUHVVLQJWKHEXWWRQRQWKHUHPRWHFRQWUROOHUWKHVLJQDOLFRQRQWKHGLVSOD\RIUHPRWHFRQWUROOHUZLOOEOLQN once
DQG the air conditioner will emit a sound, which means the signal has been sent to the air conditioner.
•8QGHURIIVWDWXVVHWWHPSHUDWXUHDQGFORFNLFRQZLOOEHGLVSOD\HGRQWKHGLVSOD\RIUHPRWHFRQWUROOHU,IWLPHURQWLPHURIIDQG light
function are set, the corresponding icons will be displayed on the display of remote controller at the same time); Under on status, the
display will show the corresponding set function icons.
1. ON/OFF button
3UHVVWKLVEXWWRQ andWKHXQLWZLOOWXUQRQ;SUHVVLWRQFHPRUH andWKHXQLWZLOOWXUQRII6OHHSIXQFWLRQZLOOEHFDQFHOHGZKenXQLW isRII

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
14
2. FAN button
3UHVVWKLVEXWWRQ$XWR/RZ0HGLXPORZ0HGLXP0HGLXPKLJK+LJKVSHHGFDQEHFLUFXODUO\VHOHFWHG$IWHUSRZHUHGRQ$XWRIDQVSHHG
LVGHIDXOW8QGHU'5<PRGH/RZIDQVSHHGRQO\FDQEHVHWXS
3. MODE button
3UHVVWKLVEXWWRQ$XWR&RRO'U\)DQ+HDWPRGHFDQEHVHOHFWHGFLUFXODUO\$XWRPRGHLVGHIDXOWZKLOHSRZHUedRQ8QGHU$XWRPRGH
the WHPSHUDWXUHZLOOQRWEHGLVSOD\HG Under Heat mode, the initial value is 28& ) 8QGHURWKHUPRGHVWKHLQLWLDOYDOXHLV&
)
+/- button
•3UHVHWWLQJWHPSHUDWXUHFDQEHLQFUHDVHG
3UHVVWKLVEXWWRQ WKHWHPSHUDWXUHFDQEHVHWXSFRQWLQXRXVO\SUHVVWKLVEXWWRQDQGKROGIRUWZRVHFRQGVWKHUHODWLYHFRQWHQWVwill
TXLFNO\FKDQJH XQWLOreleasingWKLVEXWWRQ 7KHWHPSHUDWXUHDGMXVWPHQWLVunavailable under Auto mode.
•3UHVHWWLQJWHPSHUDWXUHFDQEHGHFUHDVHG
3UHVVWKLVEXWWRQWKHWHPSHUDWXUHFDQEHVHWXSFRQWLQXRXVO\SUHVVWKLVEXWWRQDQGKROGIRUWZRVHFRQGVWKHUHODWLYHFRQWHQWVwill qui
ckly change. 7KHWHPSHUDWXUHDGMXVWPHQWLVXQDYDLODEOHinWKH$XWRPRGH
•TURBO button
8QGHU&RRORU+HDWPRGHSUHVVWKLVEXWWRQFDQWXUQRQRUWXUQRIIWKH7XUERIXQFWLRQ$IWHUWKH7XUERIXQFWLRQWXUQHGRQWKHVLJQDORI7 X
UER ZLOOGLVSOD\7KHVLJQDOZLOOEHDXWRPDWLFDOO\FDQFHOOHGLIFKDQJLQJWKHPRGHRUIDQVSHHG
•button
3UHVVWKLVEXWWRQWRVHWOHIWULJKWVZLQJDQJOHF\FOLQJDVEHORZ
7. button
3UHVVWKLVEXWWRQwillVHWVZLQJDQJOHZKLFKFLUFXODUO\FKDQJHVDVEHORZ
7KLVUHPRWHFRQWUROOHULVXQLYHUVDO,ILWUHFHLYHVWKUHHVNLQGVRIIROORZLQJVWDWXVWKHVZLQJDQJOHZLOOUHPDLQRULJLDO
,IJXLGHORXYHULVVWRSSHGZKHQLWLVVZLQJLQJXSDQGGRZQ LWZLOOUHPDLQLWVSUHVHQWSRVLWLRQ
LQGLFDWHVJXLGHORXYHUVZLQJVEDFNDQGIRUWKLQWKH¿YHpositions DVVKRZQLQWKH¿JXUH
8. CLOCK button
3UHVVWKLVEXWWRQWKHFORFNFDQEHVHWXS VLJQDOEOLQNDQGGLVSOD\ Within 5 seconds, the value can be adjusted by pressing + or -
button, continuously press this button for 2 seconds above, every 0.5 seconds, the value increases. While blinking, re-press the Clock
button or Confirm button, signal will be constantly displayed and it denotes the setting succeeded. Ten minutes after powered on,
12:00 is defaulted to display and signal will be displayed. If there is signal displayed, that denotes the current time value is Clock
value, otherwise is Timer value.
9. TIMER ON/TIMER OFF button
•7LPHU2QVHWWLQJ6LJQDO³21´ ZLOOEOLQNDQGGLVSOD\ signal will disappear, the numerical section will become the timer on setting
status. During 5 second blink, press + or - button to adjust the time value of numerical section. Every press of that button, the value will
be increased or decreased one minute. Hold + or - button, 2 seconds later, it quickly changes, the way of change is: During the initial
2.5 seconds, ten number change in the one place of minute, then the one place is constant, ten numbers change in the ten place of
minute at 2.5 seconds speed and carry. During 5s blink, press the Timer button, the timer sets. The Timer On has been set up, re-
press the timer button, the Timer On will be canceled. Before setting the Timer, please adjust the Clock to the current actual time.
•Press this key to enter into TIMER OFF setup, the TIMER OFF icon will blink. The method of setting is the same as TIMER ON.
1RWH'U\PRGH is Low fan speed only.
Medium fanLow fan High fan
Medium-low fan Medium-high fan
ATUO
OFF
OFF

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
15
10. TEMP button
3UHVVWKLVEXWWRQ\RXwillVHHLQGRRUVHWWHPSHUDWXUHLQGRRUDPELHQWWHPSHUDWXUHRURXWGRRUDPELHQWWHPSHUDWXUHRQLQGRRU
XQLW¶V GLVSOD\7KHVHWWLQJRQUHPRWHFRQWUROOHULVVHOHFWHGFLUFXODUO\DVEHORZ
QRGLVSOD\
:KHQVHOHFWLQJ "with remote controller or no display, temperature indicator on indoor unit displays set temperature; when selecting
"  ZLWKUHPRWHFRQWUROOHUWHPSHUDWXUHLQGLFDWRURQLQGRRUXQLWGLVSOD\Vindoor ambient temperature; when selecting " " with
remote controller WHPSHUDWXUHLQGLFDWRURQLQGRRUXQLWGLVSOD\VRXWGRRUDPELHQWWHPSHUDWXUHThree seconds later it will return to the
setting temperature
$WWHQWLRQ:KHQGLVSOD\LQJWKHRXWGRRUDPELHQWWKHGLVSOD\LQJUDQJHLV)DQG& When it goes beyond range, it keeps the
threshold data (WKHVPDOOHVW²&RU)DQGWKHODUJHVW)RU&
:DUPWLSV:KHQRSHUDWLQJEXWWRQVRQWKHFRYHUSOHDVHPDNHVXUHWKHFRYHULVFORVHGFRPSOHWHO\
11. / button (This function is only available for some models)
3UHVVWKLVEXWWRQWRDFKLHYHWKHRQDQGRIIRIKHDOWK\IXQFWLRQLQRSHUDWLRQVWDWXV 3UHVVWKLVEXWWRQIRUWKH¿UVWtime to start scavenging
function; L&'GLVSOD\V ³ ". Press the button for the second time to start healthy and scavenging 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 " ". Press this button again to repeat the operation above.
12. I FEEL button
3UHVVWKLVEXWWRQRQFHWRWXUQRQWKH,)((/IXQFWLRQWKHQWKH¿JXUHRI,)((/ZLOOEHGLVSOD\HGDIWHUHYHU\SUHVVRIRWKHUIXQFWLRQ
EXWWRQHYHU\PVWRVHQG,)((/RQFHDIWHUWKLVIXQFWLRQVWDUWHG the remote control will send temperature to the main unit every
1 PLQXWHV PressWKLVEXWWRQ againWKLVIXQFWLRQZLOOEHWXUQHGRII
13. LIGHT button
3UHVVWKLVEXWWRQDWXQLW2QRU2IIVWDWXV /LJKW2QDQG/LJKW2IIFDQEHVHWXS $IWHUSRZHUHGRQ/LJKW2QLVGHIDXOW
14. X-FAN button
3UHVVLQJ;)$1EXWWRQLQ&22/RU'5<PRGH WKHLFRQ is displayed and the indoor fan will continue operation for two minutes
 LQRUGHUWRGU\WKHLQGRRUXQLWHYHQWKRXJK\RXKDYHWXUQHGRIIWKHXQLW $IWHUHQHUJL]DWLRQ;)$12))LVGHIDXOWHG X-FAN is not
DYDLODEOHLQ $872 )$1RU+($7PRGH
15. QUIET button
3UHVVWKLVEXWWRQ the 4XLHWVWDWXVLVXQGHUWKH$XWR4XLHWPRGHGLVSOD\ DQG³$XWR´ VLJQDODQG4XLHWPRGH GLVSOD\ " signal)
DQG 4XLHW2)) WKHUHLVQRVLJQDORI GLVSOD\HG DIWHUSRZHUHGRQ WKH4XLHW2))LVGHIDXOWHG8QGHUWKH4XLHWPRGH'LVSOD\ "
signal), tKHIDQVSHHGLVQRWDYDLODEOH
16. SLEEP button
•3UHVVWKLVEXWWRQ to VHOHFW6OHHS 6OHHS  6OHHS DQGFDQFHO6OHHS
•6OHHSLV6OHHSPRGHLQ&RRO'HKXPLGLI\PRGHVVOHHSVWDWXVDIWHUUXQningIRURQHKRXUWKHPDLQXQLWVHWWLQJWHPSHUDWXUHZLOO
LQFUHDVH  & (1°F~2°F), two hours, setting temperature increased 2°C (3°F~4°F), the unit will run at this setting temperature. In Heat
mode: sleep status after running for one hour, the setting temperature will decrease 1°C (1°F~2°F), two hours, setting temperature will
decrease 2°C (3°F~4°F), then the unit will run at this setting temperature.
•Sleep 2 is sleep mode 2. The air conditioner will run according to the presetting a group of sleep temperature curve.
In Cool mode:
1) When setting the initial temperature 16~23°C (61°F~74°F), after turning on Sleep function, the temperature will be increased
1°C (1°F~2°F) every hour, after 3°C (5°F~6°F) the temperature will be maintained, after seven hours, the temperature will be
decreased 1°C (1°F~2°F), after that the unit will keep running at this temperature;
2) When setting the initial temperature 24~27°C (75°F~81°F), after turned on Sleep function, the temperature will be increased 1°
C (1°F~2°F) every hour, after 3°C (3°F~4°F) the temperature will be maintained, after seven hours, the temperature will be
decreased 1°C (1°F~2°F), after that the unit will run at this temperature;
3) When setting the initial temperature 28~29°C (82°F~85°F), after turned on Sleep function, the temperature will be increased 1°
C (1°F~2°F) in every hour, after 1°C (1°F~2°F) the temperature will be maintained, after seven hours, the temperature will be
decreased 1°C (1°F~2°F), after that the unit will run at this temperature;
4) When setting the initial temperature 30°C (86°F), at this temperature setting, after seven hours, the temperature will be
decreased 1°C (1°F~2°F), after that the unit will run at this temperature;
In Heat mode:
1) Under the initial presetting temperature 16°C (61°F), it will maintain this setting temperature.
2) Under the initial presetting temperature 17~20°C (62°F~68°F), after Sleep function start up, the temperature will
decrease 1°C (1°F~2°F) every hour, after 1°C (1°F~2°F) decreased, this temperature will be maintained.
3) Under the initial presetting temperature 21~27°C (69°F~82°F), after Sleep function start up, the temperature will
decrease 1°C (1°F~2°F) every hour, after 2°C (3°F~4°F) decreased, this temperature will be maintained.
4) Under the initial presetting temperature 28~30°C (82°F~86°F), after Sleep function start up, the temperature will
decrease 1°C (1°F~2°F) every hour, after 3°C (5°F~6°F) decreased, this temperature will be maintained.

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
16
•6OHHS–WKHVOHHSFXUYHVHWWLQJXQGHU6OHHSPRGHE\',<
1) Under Sleep 3 mode, pressand hold "Turbo" button, remote control enters into sleep setting status, the time of remote control will
display "1 hour", the temperature setting screen will display the corresponding temperature of last setting sleep curve and blink (The
first entering will display according to the initial curve setting value from factory).
2) Adjusting "+" and "-" button will change the corresponding temperature setting, after adjusted, press "Turbo" button for confirmation.
3) At this time, hour will be automatically increased at the timer position on the remote control, the place of temperature setting screen
will display the corresponding temperature of last sleep curve setting and blink.
4) Repeat the above step (2)~(3) operation, until 8 hours temperature setting is finished and sleep curve setting is finished. At this time,
the remote control will resume the original timer display; temperature display will return to original temperature setting.
•Sleep 3–the sleep curve setting under Sleep mode can be checked:
Use the above method to inquire the presetting sleep curve, enter into user individualization sleep setting status, but do not change the
temperature, press "Turbo" button for confirmation.
Note: In the above presetting or inquiry procedure, if button is not pressed for 10 seconds, the sleep curve setting status will
automatically stop and resume the original display. In the presetting or inquiry procedure, press "ON/OFF" button, "Mode" button,
"Timer" button or "Sleep" button, the sleep curve setting or inquiry status will stop similarly.
17. X-FAN function
This function indicates that moisture on evaporator or indoor unit will be blow-dried after the unit is stopped to avoid mold.
1. +DYLQJVHW;)$1IXQFWLRQRQ$IWHUWXUQLQJRIIWKHXQLWE\SUHVVLQJ212))EXWWRQLQGRRUIDQZLOOFRQWLQXHUXQQLQJIRUDERXWPLQutes
DW ORZVSHHG,QWKLVSHULRGSUHVV;)$1EXWWRQWRVWRSLQGRRUIDQGLUHFWO\
2. +DYLQJVHW;)$1IXQFWLRQRII$IWHUWXUQLQJRIIWKHXQLWE\SUHVVLQJ212))EXWWRQWKHFRPSOHWHXQLWZLOOEHRIIGLUHFWO\
18. AUTO RUN
:KHQ$872581PRGHLVVHOHFWHGWKHVHWWLQJWHPSHUDWXUHZLOOQRWEHGLVSOD\HGRQWKH/&'WKHXQLWZLOOEHLQDFFRUGDQFHZLWKWKHURRP te
mperatureDXWRPDWLFDOO\WRVHOHFWWKHVXLWDEOHUXQQLQJPHWKRGDQGWRPDNHDPELHQWFRPIRUWDEOH
19. Turbo function
StDUWWKLVIXQFWLRQWKHXQLWZLOOUXQDWVXSHUKLJKIDQVSHHGWRFRRORUKHDWTXLFNO\VRWKDWWKHDPELHQWWHPSeratureDSSURDFKVWKHSUHVHW tem
perature DVVRRQDVSRVVLEOH
20. Lock
3UHVVDQGEXWWRQVVLPXOWDQHRXVO\WRORFNRUXQORFNWKHNH\ERDUG,IWKHUHPRWHFRQWUROOHU LVORFNHGWKHLFRQ will be displayed on it, in
which case, press any button, the mark will flicker three times. If the keyboard is unlocked, the mark will disappear.
21. Swing up and down
1) Press swing up and down button continuously for more than two seconds, the main unit will swing back and forth from up to down,
and then release the button, the unit will stop swinging and present position of guide louver will be kept.
2) Under swing up and down mode, when the status is switched from off to , if the button is pressed two seconds later, status will
switch to off status directly; if the button is pressed again with two seconds, the change of swing status will also depend on the
circulation sequence stated above.
22. Swing left and right
1) Press swing left and right button continuously more than two seconds, the main unit will swing back and forth from left to right, and then
release the button, the unit will stop swinging and present position of guide louver will be kept immediately.
2) Under swing left and right mode, when the status is switched from off to , press this button again two seconds later, status will
switch to off status; press this button again within two seconds, the change of swing status will also depend on the circulation sequence
stated above.
23. Switch between Fahrenheit and Centigrade
8QGHUVWDWXVRIXQLWRIISUHVV02'(DQGEXWWRQVVLPXOWDQHRXVO\WRVZLWFK&DQG)
24. Combination of " TEMP" and "CLOCK" buttons: About Energy-saving Function
3UHVV³7(03´DQG³&/2&.´VLPXOWDQHRXVO\LQ&22/PRGHWRVWDUWHQHUJ\VDYLQJIXQFWLRQ ScreenRQWKHUHPRWHFRQWUROOHUGLVSOD\V³6(´
5HSHDWWKHRSHUDWLRQWRstopWKHIXQFWLRQ.
25. Combination of " TEMP" and "CLOCK" buttons: About 8°C (46ºF) Heating Function
3UHVV³7(03´DQG³&/2&.´VLPXOWDQHRXVO\LQ+($7PRGHWRVWDUW&)+HDWLQJ)XQFWLRQ Screen RQWKHUHPRWHFRQWUROOHU GLVSOD\V 
 DQGDVHOHFWHGWHPSHUDWXUHRI³&")LI)DKUHQKHLWLVDGRSWHG5HSHDWWKHRSHUDWLRQWRstopWKHIXQFWLRQ
26. Auto Quiet function
:KHQDXWRTXLHWIXQFWLRQLVVHOHFWHG
1) 8QGHUFRROLQJPRGHLQGRRUIDQRSHUDWHVDWQRWFKVSHHGPLQXWHVODWHURUZKHQLQGRRUDPELHQWWHPSHUDWXUH & )LQGRRU
IDQZLOORSHUDWHDWQRWFKVSHHGRUTXLHWPRGHDFFRUGLQJWRWKHFRPSDULVRQEHWZHHQLQGRRUDPELQHWWHPSHUDWXUHDQGVHWWHPSHUDWXUH
2) 8QGHUKHDWLQJPRGHLQGRRUIDQRSHUDWHVDWQRWFKVSHHGRUTXLHWPRGHDFFRUGLQJWRWKHFRPSDULVRQEHWZHHQLQGRRUDPELHQW
WHPSHUDWXUHDQGVHWWHPSHUDWXUH
3) 8QGHUGU\IDQPRGHLQGRRUIDQRSHUDWHVDWTXLHWPRGH
4) 8QGHUDXWRPRGHWKHLQGRRUIDQRSHUDWHVDWWKHDXWRTXLHWPRGHDFFRUGLQJWRDFWXDOFRROLQJKHDWLQJRUIDQPRGH
27. Sleep function
8QGHUWKH)DQDQG$XWRPRGHWKH6OHHSIXQFWLRQFDQQRWEHVHWXS. UQGHU'HKXPLGLI\PRGHRQO\6OHHSFDQEHVHOHFWHG 6HOHFWDQG enter
LQWRDQ\NLQGRI6OHHSPRGHWKH4XLHWIXQFWLRQcanEHenteredGLIIHUHQW4XLHWVWDWXVis RSWLRQDO

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
17
1
4
3 1
2
4
2
3
5
battery
Cover of battery box
remove
reinstall
Operation Guide
1. General operation
1) $IWHUSRZHUHGRQSUHVV212))EXWWRQWKHXQLWZLOOVWDUWWRUXQ1RWH:KHQLWLVSRZHUHGRQWKH
JXLGHORXYHURIPDLQXQLWZLOOFORVHDXWRPDWLFDOO\
2) 3UHVV02'(EXWWRQVHOHFWGHVLUHGUXQQLQJPRGH
3) 3UHVVLQJRUEXWWRQWRVHWWKHGHVLUHGWHPSHUDWXUH,WLVXQQHFHVVDU\WRVHWWKHWHPSDW$872
PRGH
4) 3UHVVLQJ)$1EXWWRQVHWIDQVSHHGFDQVHOHFW$872)$1/2:0(',80/2:0(',800(',8
0 +,*+DQG+,*+
5) 3UHVsEXWWRQWRVHOHFWWKHVZLQJ
2. Optional operation
1) 3UHVV6/((3EXWWRQWRVHWVOHHS
2) 3UHVV7,0(521DQG7,0(52))EXWWRQFDQVHWWKHVFKHGXOHGWLPHURQRUWLPHURII
3) 3UHVV/,*+7EXWWRQWRFRQWUROWKHRQDQGRIIRIWKHGLVSOD\LQJSDUWRIWKHXQLW7KLVIXQFWLRQPD\QRW
be DYDLODEOHIRUVRPHXQLWV
4) 3UHVV785%2EXWWRQFDQUHDOL]HWKH21DQG2))RI785%2IXQFWLRQ
Replacement of Batteries in Remote Controller
1) 3UHVVWKHEDFNVLGHRIUHPRWHFRQWUROOHUPDUNHGZLWK as shown in the fig, and then push
out the cover of battery box along the arrow direction
2) 5HSODFHWZR$$$9GU\EDWWHULHVDQGPDNHVXUHWKHSRVLWLRQRISROeDQGSROe
are correct.
3) 5HLQVWDOOWKHFRYHURIEDWWHU\ER[
1RWH
•'XULQJRSHUDWLRQSRLQWWKHUHPRWHFRQWUROVLJQDOVHQGHUDWWKHUHFHLYLQJZLQGRZRQLQGRRUXQLW
•
•
7KHGLVWDQFHEHWZHHQVLJQDOVHQGHUDQGUHFHLYLQJZLQGRZVKRXOGEHQRPRUHWKDQ25 ft, and
there should EHQRREVWDFOHVEHWZHHQWKHP
6LJQDOPD\EHLQWHUIHUHGwith HDVLO\wKHUHWKHUHareÀXRUHVFHQWODPSsRUZLUHOHVVWHOHSKRQHs
UHPRWHFRQWUROOHUVKRXOGEHFORVHWRLQGRRUXQLWGXULQJRSHUDWLRQ
•5HSODFHQHZEDWWHULHVRIWKHVDPHPRGHOZKHQUHSODFHPHQWLVUHTXLUHG
•:KHQ\RXGR QoWXVHUHPRWHFRQWUROOHUIRUDORQJWLPHSOHDVHWDNHRXWWKHEDWWHULHV
•,IWKHGLVSOD\RQUHPRWHFRQWUROOHULVIX]]\RUWKHUH iVQRGLVSOD\SOHDVHUHSODFHEDWWHULHV

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
18
6.2 Brief Description of Modes and Functions
Basic mode
&RROLQJ'U\LQJ+HDWLQJ$XWR)DQ
a. Up and down swing
$IWHUHQHUJL]DWLRQVPDOODQGELJKRUL]RQWDOORXYHUVZLOOURWDWHLQD counterclockwise direction to close the air outlet. When turning on
the unit, if up and down swing function has not been set by remote controller, small and big horizontal louvers will rotate in a clockwise
direction at the fixed direction; if up and down swing function has been set by remote controller, small and big horizontal louvers will
operate at the status set by remote controller.
1. Cooling mode
1) Under cooling mode, fan and swing operate at setting status. Temperature setting range is 16~30°C (61°~86°F).
2) During malfunction of outdoor unit or when stopping operation due to fault protection, indoor unit keeps original operation status and
the corresponding malfunction code will be displayed.
3) Indoor fan stops operation during mode change.
2. Drying mode
1) 8QGHUGU\LQJPRGHIDQRSHUDWHVDWORZVSHHGDQGVZLQJRSHUDWHVDWVHWWLQJVWDWXV7HPSHUDWXUHVHWWLQJUDQJHLV 16~30C
(61F~86F).
2) 'XULQJPDOIXQFWLRQRIRXWGRRUXQLWRUZKHQVWRSpingRSHUDWLRQGXHWRfault protection, indoor unit keeps original operation status and
the corresponding malfunction code will be displayed.
3) 3URWHFWLRQVWDWXVLVVDPHDVWKDWXQGHUFRROLQJPRGH
3. Heating mode
1) 8QGHUKHDWLQJPRGHWHPSHUDWXUHVHWWLQJUDQJHLVa& )a)
2) 2SHUDWLQgFRQGLWLRQDQGSURFHVVIRUKHDWLQJPRGH:
$IWHUWXUQLQJRQWKHXQLWXQGHUKHDWLQJPRGHLQGRRUXQLWRSHUDWHVDFFRUGLQJWRFROGDLUSUHYHQWLRQFRQGLWLRQ 'XULQJKHDWLQJSURFHVV
DIWHUURRPWHPSHUDWXUHLVLQFUHDVHGWRVHWWHPSHUDWXUH WKHFRPSOHWHXQLWVWRSVRSHUDWLRQ,QGRRUIDQ will blow residual
KHDWDQGGHOD\one minuteWRVWRSRSHUDWLRQ
'XULQJKHDWLQJRSHUDWLRQDIWHUWXUQLQJRIIWKHXQLWE\UHPRWHFRQWUROOHULQGRRUIDQZLOOEORZUHVLGXDOKHDWWRGHOD\10 seconds to top
operation.
3) 3URWHFWLRQIXQFWLRQ
:KHQFRPSUHVVRUVWRSVRSHUDWLRQGXHWRPDOIXQFWLRQLQFOXGHPDOIXQFWLRQRIWHPSHUDWXUHVHQVRUGXULQJKHDWLQJPRGHLQGRRUIDQ 
ZLOO EORZUHVLGXDOKHDWWRGHOD\PLQWRVWRSRSHUDWLRQ
4) 2LOUHWXUQDQGGHIURVWLQJ
$IWHUUHFHLYLQJGHIURVWLQJVLJQDOIURPRXWGRRUXQLWRURLOUHWXUQVLJQDOWKHFRPSOHWHXQLWHQWHUVLQWRGHIURVWLQJPRGHMeanwhile, heat
ing icon on LQGRRUXQLWZLOOEH2))VDQG21V
4. Auto mode
1) 2SHUDWLngFRQGLWLRQDQGSURFHVVIRUDXWRPRGH
8QGHUWKLVPRGHV\VWHPZLOOVHOHFWRSHUDWLRQPRGHFRROLQJKHDWLQJIDQDXWRPDWLFDOO\DFFRUGLQJWRWKHFKDQJHRILQGRRUambient t
emperatureAllow secondsDXWRGHOD\SURWHFWLRQIRUPRGHVZLWFKRYHU
ƹ:KHQiQGRRUDPEient temperature isı & (79°F), the system operates under cooling mode. Meanwhile, ex-factory setting
temperature is fixed at )WKHV\VWHPRSHUDWHVXQGHUFRROLQJPRGH0HDQZKLOHH[IDFWRU\VHWWLQJWHPSHUDWXUHLV¿[HGDW
25°C (77°F) [(Tfix=25°C (77°F)].
ƹ)RUKHDWSXPSXQLW:KHQiQGRRUDPEient temperature isİ 21°C (69°F), the system operates under heating mode. Meanwhile,
ex-factory setting temperature is fixed at 20°C (68°F) [Tfix=20°C (68°F)].
ƹ:KHQ& ) ˘ 7LQGRRUDPEient temperature is < 26°C (79°F): The system operates under fan mode when turning on the
unit in auto mode; the system keeps previous operation mode when the unit operates at auto mode switched from cooling, heating
or fan mode; the system operates at fan mode when the unit operates at auto mode switched from dry mode.
'LVSOD\RSHUDWLRQLFRQDFWXDORSHUDWLRQPRGHLFRQ'LVSOD\VHWWHPSHUDWXUHEXWFDQnoWEHDGMXVWHG
3URWHFWLRQIXQFWLRQLVVDPHDVWKDWXQGHURWKHUPRGHV UHIHUWRWKHVHFWLRQRIV\VWHPIXQFWLRQSURWHFWLRQ
5. Fan mode
InIDQPRGHLQGRRUIDQRSHUDWHVDWVHWIDQVSHHGZKLOHFRPSUHVVRUDQGRXWGRRUIDQVWRSVRSHUDWLRQZD\YDOYHLVGHHQHUJL]HG.
7HPSHUDWXUHVHWWLQJUDQJHLVa& )a)
Other controls
1. Buzzer
8SRQHQHUJL]DWLRQRUSUHVVLQJEXWWRQRUUHFHLYLQJVLJQDOIURPUHPRWHFRQWUROOHUWKHEX]]HUZLOOEHHS
2. Auto button
:KHQSUHVVLQJWKLVEXWWRQXQGHU2))VWDWXVWKHFRPSOHWHXQLWZLOORSHUDWHXQGHUDXWRPRGHDQGLQGRRUXQLWZLOORSHUDWHDWDXWRIDQ
VSHHG6ZLQJPRGHZLOORSHUDWHZKHQLQGRRUIDQLVRSHUDWLQJ
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Installation & Operation Manual - VFH-MB 09/12/18/24 Series
19
The small horizontal louver only operates under heating mode. Under other mode, the small horizontal louver always stays at the
closed status;
On the 9k/12k model, the small horizontal louver will start operation only when the big horizontal louver rotates to the second fixed
angle (62°) under heating mode.
On the 18k model, the small horizontal louver will start operation only when the big horizontal louver rotates to the first fixed angle
(63°) under heating mode.
On the 24k model, the small horizontal louver will start operation only when the big horizontal louver rotates to the first fixed angle
(40°) under heating mode.
When small and big horizontal louvers receive the signal of canceling up and down swing function from remote controller during
swing process, small and big horizontal louvers will stop at current position. After turning off the unit, small and big horizontal louvers
will rotate in a counterclockwise direction to close air outlet.
a. Auto fan speed under heating mode
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b. Auto fan speed under cooling or heating mode
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:KHQ7SUHVHW  )a) ˘ 7DPE İ 7SUHVHWLQGRRUIDQRSHUDWHVDWORZVSHHG
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c. The default auto fan speed is low speed under dry mode
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&RROLQJPRGH%DVLQJRQWKHVHWWHPSHUDWXUHRIUHPRWHFRQWUROOHUDIWHUWXUQLQJRQWKHVOHHSIXQFWLRQIRUDIHZKRXUVVHWWHPSHUDWXUH
will increase automatically accoridLQJWRKXPDQERG\¶VFRPIRUW
+HDWLQJPRGH%DVLQJRQWKHVHWWHPSHUDWXUHRIUHPRWHFRQWUROOHUDIWHUWXUQLQJRQWKHVOHHSIXQFWLRQIRUDIHZKRXUVVHWWHPSHUDWXUH
ZLOO GHFUHDVHaXWRPDWLFDOO\DFFRUGLQJWRKXPDQERG\¶VFRPIRUW
&RQWUROOHUoperatesJHQHUDOWLPHUIXQFWLRQDQGFORFNWLPHUIXQFWLRQVLPXOWDQHRXVO\When selecting the remote controller with general
timer, you can only activate the general timer function of controller; when selecting the remote controller with clock timer, you can only
activate the clock timer function of controller.
1) *HQHUDOWLPHU
7LPHUSUHFLVLRQIRUJHQHUDOWLPHULV KRXUto KRXUVFLUFXODWLQJWLPHUFDQ¶WEHVHW
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2) &ORFNWLPHU
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ƹ 7LPHU21,IWLPHU21LVVHWGXULQJRSHUDWLRQRIWKHXQLWWKHXQLWZLOOFRQWLQXHWRRSHUDWH,IWLPHU21LVVHWDWXQLW2))when
reaching21WLPHWKHXQLWZLOOVWDUWWRRSHUDWHDFFRUGLQJWRSUHYLRXVVHWWLQJVWDWXVE\UHPRWHFRQWUROOHU
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2))WLPH,WKH XQLWZLOOVWRSRSHUDWLRQ
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DOVRVHW WLPHUVHWWLQJDJDLQDQGWKHV\VWHPZLOORSHUDWHDFFRUGLQJWRWKHODVWVHWWLQJVWDWXV
,IWLPHU21DQGWLPHU2))DUHVHWDWWKHVDPHWLPHGXULQJRSHUDWLRQRIWKHXQLWWKHXQLWZLOONHHSRSHUDWLQJDWFXUUHQWVWDWXV
until reaching OFF time. When reaching ON time, the unit will turn on automatically. The unit will repeat this pattern every 24
hours.
b. Left and right swing
$IWHUHQHUJL]DWLRQWKHYHUWLFDOORXYHUZLOORSHUDWHDWWKHVWDUWSRVLWLRQDQGWKHQVWRSDWWKHPLGGOHSRVLWLRQWhen turning on the unit,
if left and right swing function has not been set by remote controller, the horizontal louver will stop at middle position; if the left and
right swing function has been set by remote controller, the vertical louver will operate at the swing status set by re mote controller.
When the vertical louver receives the signal to cancel left and right swing function from remote controller, the horizontal louver will
stop at the current position.
After turning off the unit, the horizontal louver stops at original position.
3.Auto fan
4.Sleep
5.Timer function

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
20
,IWLPHU21DQGWLPHU2))DUHVHWDWWKHVDPHWLPHin2))VWDWXVWKHXQLWZLOOremain OFF until reaching ON time. When
reaching OFF time, the unit will be turned off automatically. The unit will repeat this pattern every 24 hours.
If timer ON and timer OFF are the same, OFF command will prevail.
6. Memory function
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ƹ0HPRU\FRQWHQW21VWDWXVPRGHVZLQJVWDWXVOLJKWVHWWHPSHUDWXUHVHWIDQVSHHGJHQHUDOWLPHU)DKUHQKHLW&HQWLJUDGH
2) 3RZHURIIPHPRU\ZKHQWXUQLQJ2IIXQLW
ƹ 0HPRU\FRQWHQW2))VWDWXVPRGHVZLQJVWDWXVOLJKWVHWWHPSHUDWXUHVHWIDQVSHHGJHQHUDOWLPHU)DKUHQKHLW&HQWLJUDGH
7. Electrostatic dedust function
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function is ON) to start up electrostatic dedust function.
When WKHIDQVWRSVRSHUDWLRQWKHHOHFWURVWDWLFGHGXVWIXQFWLRQZLOOEHWXUQHGRII
8. I FEEL function
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 GHIURVWLQJDQGFROGEORZSUHYHQWLRQWKHXQLWRSHUDWHVDFFRUGLQJWRWKHDPELHQWWHPSHUDWXUHVHQVHGE\WKHDLUFRQGLWLRQHU7KH
UHPRWHFRQWUROOHUZLOOUHJXODUO\VHQGDPELHQWWHPSHUDWXUHGDWDWRWKHFRQWUROOHU:KHQWKHGDWDKDVQRWEHHQUHFHLYHG, WKH
 FRQWUROOHUZLOORSHUDWHDFFRUGLQJWRWKHWHPSHUDWXUHVHQVHGE\WKHDLUFRQGLWLRQHU,I,)((/IXQFWLRQKDVQ¶WEHHQVWDUWHGWKHDPELHQW
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9. Reserve Fahrenheit display function
,IrequestedWRGLVSOD\LQGRRUDPELHQWWHPSHUDWXUHLQGRRUDPELHQWWHPSHUDWXUHVHQWE\UHPRWHFRQWUROOHUZLOOGLVSOD\.
THPSHUDWXUHUDQJHLVa& a)'LVSOD\ZLOOshowWKHVHWWHPSHUDWXUHas default. After GLVSOD\LQJDPELHQWWHPSHUDWXUH
IRUVRUUHFHLYLQJRWKHUYDOLGUHPRWHFRQWUROVLJQDOZLWKLQVWKHXQLWGLVSOD\will return to VHW WHPSHUDWXUH
10. Indoor and outdoor ambient temperature display function
,Irequested WRGLVSOD\LQGRRUDQGRXWGRRUDPELHQWWHPSHUDWXUHLQGRRUXQLWZLOOGLVSOD\FRUUHVSRQGLQJDPELHQWWHPSHUDWXUHDFFRUGLQJ
WRLQGRRURURXWGRRUDPELHQWVLJQDOsentE\UHPRWHFRQWUROOHU7HPSHUDWXUHGLVSOD\UDQJHLVa& LIDPELHQWWHPSHUDWXUH
 YDOXHH[FHHGsWKLVUDQJHWKHWHPSHUDWXUHZLOOEHGLVSOD\HGDWWKHXSSHUorORZHUOLPLW$IWHUDPELHQWWHPSHUDWXUHLVdisplayed for
V,LWZLOOGLVSOD\VHWWHPSHUDWXUH
11. Turbo function
:KHQLQGRRUXQLWUHFHLYHsWXUERIXQFWLRQIURPUHPRWHFRQWUROOHU, iQGRRUIDQRSHUDWHVDWVXSHUKLJK IDQVSHHGoXWGRRUIDQRSHUDWHV
DWWXUERIXQFWLRQLQFRROLQJRUKHDWLQJPRGH
12. Compulsory defrosting function
1) 6WDUWXSFRPSXOVRU\GHIURVWLQJIXQFWLRQ
8QGHU21VWDWXVVHWKHDWLQJPRGHZLWKUHPRWHFRQWUROOHUDQGDGMXVWWKHWHPSHUDWXUHWR&)3UHVV³´ EX
WWRQVXFFHVVLYHO\ZLWKLQVDQGWKHFRPSOHWHXQLWZLOOHQWHULQWRFRPSXOVRU\GHIURVWLQJVWDWXV0HDQZKLOHKHDWLQJLQGLFDWRURQ LQ
GRRUXQLWZLOOcycle 21VDQG2))VVXFFHVVLYHO\1RWH,IFRPSOHWHXQLWKDVPDOIXQFWLRQRUVWRSVRSHUDWLRQGXHWR
SURWHFWLRQFRPSXOVRU\GHIURVWLQJ IXQFWLRQFDQEHVWDUWHGXSDIWHUPDOIXQFWLRQRUSURWHFWLRQLVUHVet
2) ([LWFRPSXOVRU\GHIURVWLQJPRGH
$IWHUFRPSXOVRU\GHIURVWLQJLVVWDUWHGXSWKHXQLWZLOOH[LWGHIURVWLQJRSHUDWLRQDFFRUGLQJWRWKHDFWXDOGHIURVW termination criteria
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13. Refrigerant recovery function (applicable for moving the unit or maintaining the unit)
1) 6WDUWXSUHIULJHUDQWUHFRYHU\IXQFWLRQ
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EXWWRQ RQUHPRWHFRQWUROOHUWLPHVVXFFHVVLYHO\aWDQ\RQHLQGRRUXQLWZLWKLQVDQGWKHQWKHXQLWZLOOHQWHULQWRUHIULJHUDQW UHFRYHU\
sWDWXV$OOLQGRRUXQLWVGLVSOD\)R0DLQWHQDQFHSHUVRQFORVHDOOOLTXLGYDOYHV$IWHUPLQslightly depress the shrader
valvesZLWKWRROVRQHE\RQH,IQRUHIULJHUDQWVSUD\sRXWFORVHFRUUHVSRQGLQJYDOYHLPPHGLDWHO\WXUQRIIWKHXQLWZLWK UHPRWH
FRQWUROOHUDQGWKHQUHPRYHWKHFRQQHFWLRQSLSH
2) ([LWUHIULJHUDQWUHFRYHU\IXQFWLRQ
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14. Dry and mildew-proof function
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16.8& (46ºF) heating function (this function is realized by setting 8& (46ºF) heating signal with remote controller. Please refer
to corresponding part of remote controller in instruction manual).