Comfortaire B-VMH09CU-1 User manual

OWNER’S MANUAL
Super-Slim Four-Way Cassette
Models
B-VMH09CU-1
B-VMH12CU-1
B-VMH18CU-1
517.787.2100 • www.marsdelivers.com

Owner’s Manual - B-VMH09,12,18CU-1
2
CONTENTS
IMPORTANT SAFETY INFORMATION...................................................................................2
HINTS FOR ECONOMICAL OPERATION..............................................................................3
PART NAMES...........................................................................................................................3
MANUAL OPERATION...........................................................................................................10
ADJUSTING AIR FLOW DIRECTION......................................................................................11
MAINTENANCE......................................................................................................................12
AIR CONDITIONER OPERATIONS AND PERFORMANCE....................................................14
INSTALLATION.......................................................................................................................15
TROUBLESHOOTING............................................................................................................16
TROUBLESHOOTING (CONCERNING REMOTE CONTROLLER)......................................16
Danger
No
Household
Drain
Cleaner
IMPORTANT SAFETY INFORMATION
Do not attempt to install this unit by yourself. This unit requires installation by qualified persons.
Do not use caustic household drain cleaners in the unit. Drain cleaners can quickly destroy the
unit components (drain pan and heat exchanger coil etc).
CAUTION
CAUTION
NOTE
DANGER
DANGER
WARNING
WARNING
WARNING
Do not attempt to service the unit yourself. This unit has no user serviceable components.
Opening or removing the cover will expose you to dangerous voltage. Tuning off the power supply
will not prevent potential electric shock.
To avoid the risk of serious electrical shock, Never sprinkle or spill water or liquids on unit.
Ventilate the room regularly while the air conditioner is in use, especially if there is also a gas
appliance in use in this room, Failure to follow these directions may result in a loss of oxygen in
the room.
To prevent electric shock, turn off the power or disconnect the power supply plug before beginning
any cleaning or other routine maintenance. Follow the directions for cleaning in the Owner's
Manual.
!
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!
!
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!
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No
Thinner
DANGER
Never put hands or objects into the Air Outlet of indoor or outdoor units. These units are installed
with a fan running at high speed. To touch the moving fan will cause serious injury.
Do not use liquid cleaners or aerosol cleaners, use a soft and dry cloth for cleaning the unit. To
avoid electric shock, never attempt to clean the units by sprinkling water.
For proper performance, operate the unit in temperature and humidity ranges indicated in this
owner's manual. If the unit is operated beyond these conditions, it may cause malfunctions of the
unit or dew dripping from the unit.
WARRANTY...........................................................................................................................19

Owner’s Manual - B-VMH09,12,18CU-1
3
HINTS FOR ECONOMICAL OPERATION
The following should be noticed to ensure an economical operation. (Refer to corresponding chapter
for details)
Adjust the air flow direction properly to avoid winding toward your body.
Adjust the room temperature properly to get a comfortable environment and to avoid supercooling
and superheat.
In cooling, close the curtains to avoid direct sunlight.
To keep cool or warm air in the room, never open doors or windows more often than necessary.
Set the timer for the desired operating time.
Never put obstructions near the air outlet or the air inlet. Or it will cause lower efficiency, even a
sudden stop.
If you don't plan to use the unit for a long time, please disconnect power and remove the batteries
from the remote controller. When the power switch is connected, some energy will be consumed,
even if the air conditioner isn't in operation. So please disconnect the power to save energy. And
please switch the power on 12 hours before you restart the unit to ensure a smooth operation.
A clogged air filter will reduce cooling or heating efficiency, please clean it once two weeks.
PART NAMES
fb
d
e
im
n
l
p
o
c
q
a
j
k
e
gdeDisplay Panel
The air conditioner consists of the indoor unit, the outdoor unit, the connecting pipe and the remote
controller.
Cassette Type
NOTICE!
This chart is based on 24000Btu/h type. So, a few differences may exist on the outlook and functions
from yours.
b
d
e
or

Owner’s Manual - B-VMH09,12,18CU-1
4
Duct and Ceiling Type
h
b
f
d
d
e
i
mn
l
p
o
c
j
a
g
k
NOTICE!
This chart is based on 24000Btu/h type. So, a few differences may exist on the outlook and
functions from yours.
a) indoor unit b) outdoor unit
c) remote controller d) air-in
e) air-out f ) air outlet
g) air flow louver (at air outlet) h) connecting pipe
i ) drain hose j ) air inlet (with air filter in it)
k) infrared signal receiver l ) manual button
m) operation lamp n) timer indicator
o) PRE-DEF indicator p) alarm indicator
(NOTICE: In the case of "cooling only type", it is the "FAN ONLY" indicator.)
NAMES AND FUNCTIONS
b
d
e
or
NOTE:
All the pictures in this manual are for explanation purpose
only. There may be slightly different from the air conditioner
you purchased (depend on model ). The actual shape shall
prevail.

Owner’s Manual - B-VMH09,12,18CU-1
5
NAMES AND FUNCTIONS
h
b
d
e
i
mn
l
p
o
bc
f
a
de
ghi
j
k
m
o
p
l
n
c
温度 时钟
风速
模
式
风速
开
关
温度
自动
k
f
d
j
a
f
g
Display Panel
indoor unit
air-out
heat exchanger
outdoor unit
air-outlet
connecting pipe
E-Box
remote Controller
air- inlet
drain hose
infrared signal receiver
operation lamp
timer indicator
temporary button
PRE./DEF . Indicator
(Cooling and heating type) or fan only indicator (cooling
alarm indicator
only type)
For Slim DUCT with air inlet box Type
b
d
e
or

Owner’s Manual - B-VMH09,12,18CU-1
6
This picture is based on the type of 18000Btu/h, So the appearance and function may be
slightly different from the unit you purchased.
12 13 14 15
2
6
7
4
3
8
5
19
11
10
Indoor Unit Assy
Outdoor Unit Assy
Control board
Inlet
Outlet
Manual
OPERATION
TIMER
DEF./FAN.
ALARM
12
12
13
13
14
14
15
15
11
11
10
10
10
SET
OPERATION
TIMER
DEF./FAN.
ALARM
Indoor Unit
Air outlet
Drain hose
Drain Pump (Internal installed),water drain from indoor unit.
Infrared Signal receiver
Timer indicator
Alarm indicator
Defrost indicator heating/cooling type or fan indicator (cooling
only type)
Outdoor Unit
Vertical louver
Manual button/SET button
Remote Controller
Connecting pipe
Run lamp
1
7
10
4
9
13
15
2 3
Parts Names:
11 12
14
8
5
6
Air Inlet (Air filter installed inside to prevent the dust)
Four-way Cassette (slim) Type
NOTE:
These three indication lamps flash in cycles when solar
PV ECO function is activated.(Applicable to the unit adopts
solar photovoltaic system only.)

Owner’s Manual - B-VMH09,12,18CU-1
7
f
c
g
Display Panel
NAMES AND FUNCTIONS
bc
f
a
de
gh
i
k
m
o
l
n
NOTICE!
indoor unit
air-in
drain hose
outdoor unit
air flow louver (at air outlet)
air inlet (with air filter in it)
installation part
remote controller
connecting pipe
infrared signal receiver operation lamp
timer indicator
temporary button
alarm indicator
j
FAN/DEF indicator
, ,
(For cooling and heating type, it s DEF.,for cooling only type, it s FAN)
Pair-out
Ceiling & Floor Type (for VERTICAL DISCHARGE AIR CONDITIONER)
The chart based on one model of our product is for reference only, which may be different from
the unit you purchased.
n
m
o
l
k
J
i
ae
d
h
p
b
d
p
b
d
p
or

Owner’s Manual - B-VMH09,12,18CU-1
8
f
c
g
Display Panel
NAMES AND FUNCTIONS
bc
f
a
de
gh
i
k
m
o
l
n
NOTICE!
indoor unit
air-in
drain hose
outdoor unit
air flow louver (at air outlet)
air inlet (with air filter in it)
installation part
remote controller
connecting pipe
infrared signal receiver operation lamp
timer indicator
temporary button
Alarm
Indicator
j
FAN/DEF indicator
, ,
(For cooling and heating type, it s DEF.,for cooling only type, it s FAN)
Pair-out
Ceiling & Floor Type
The chart based on one model of our product is for reference only, which may be different from
the unit you purchased.
i
ae
d
h
p
b
d
p
n
mo
l
k
Jq
qTemperature display
b
d
p
or

Owner’s Manual - B-VMH09,12,18CU-1
9
f
c
g
Display Panel
NAMES AND FUNCTIONS
bc
f
a
de
gh
i
k
m
o
l
n
NOTICE!
indoor unit
air-in
drain hose
outdoor unit
air flow louver (at air outlet)
air inlet (with air filter in it)
installation part
remote controller
connecting pipe
infrared signal receiver operation lamp
timer indicator
temporary button
Alarm
Indicator
j
FAN/DEF indicator
, ,
(For cooling and heating type, it s DEF.,for cooling only type, it s FAN)
Pair-out
Ceiling & Floor Type
The chart based on one model of our product is for reference only, which may be different from
the unit you purchased.
i
ae
d
h
p
b
d
p
qTemperature display
b
d
p
or
oklm j nq
MANUAL
OPERATION
TIMER
DEF./FAN
ALARM

Owner’s Manual - B-VMH09,12,18CU-1
10
MANUAL OPERATION
Ceiling & Floor
This function is used to operate the unit temporarily in case you misplace the remote controller or its
batteries are exhausted. Two modes including AUTO and FORCED COOL can be selected through
the TEMPORARY BUTTON on the air-in grill control box of the indoor unit. Once you push this
button, the air conditioner will run in such order: AUTO, FORCED COOL, OFF, and back to AUTO.
AUTO
The OPERATION lamp is lit, and the air conditioner will run under AUTO mode. The remote
controller operation is enabled to operate according to the received signal.
FORCED COOL
The OPERATION lamp flashes, the air conditioner will turn to AUTO after it is enforced to cool
with a wind speed of HIGH for 30 minutes. The remote controller operation is disabled.
OFF
The OPERATION lamp goes off. The air conditioner is OFF while the remote controller operation
is enabled.
1
2
3
TEMPORARY
BUTTON
Four-way Cassette
This function is used to operate the unit temporarily in case you misplace the remote controller or its
batteries are exhausted. Two modes including AUTO and mandatory COOL can be selected through
the TEMPORARY BUTTON on the air inlet grill control box of the indoor unit. Once you push this
button, the air conditioner will run in such order: AUTO, mandatory COOL, OFF, and back to AUTO.
AUTO
The OPERATION lamp is lit, and the air
conditioner will run under AUTO mode. The
remote controller operation is enabled to operate
according to the received signal.
OFF
The OPERATION lamp goes off. The air
conditioner is OFF while the remote controller
operation is enabled.
MANDATORY COOL
The OPERATION lamp flashes, the air conditioner
will turn to AUTO after it is enforced to cool with a
wind speed of HIGH for 30 minutes. The remote
controller operation is disabled.
1
2
3