Mars A-VFH18DB-1 User manual

www.marsdelivers.com
IOM & Owner’s Manual
VFH-B Series
Inverter Multi Zone Ductless Mini-Split
A-VFH18DB-1
A-VFH24TB-1

IOM-Owner’s Manual - VFH-B 18/24 Series
CONTENTS GENERAL INFORMATION
1
2
3
4
4
5
6
6
7
7
8
Technical Data
Electrical Connections
Installing The Outdoor Unit
Maintenance
Installation Dimension Diagram
Check After Installation
Evacuation
Conformity And Range
The Instructions Before Use
Name of Parts
Outdoor Unit Working Temperature Range
GENERAL
INSTALLER INFORMATION
In line with the MARS policy of continual product improvement, the aesthetic and dimensional
characteristics, technical data and accessories of this appliance may be changed without notice.
The products in this manual may be different the actual product please refer to the your
equipment .
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.
Children should be supervised to ensure that they do not play with the appliance.

IOM-Owner’s Manual - VFH-B 18/24 Series
1
Explanation of Symbols
CONFORMITY AND RANGE GENERAL INFORMATION
1
Please read this owner's manual carefully before operating the unit and keep it for reference.
Instructions for installation and use of this product are provided by the manufacturer.
Only use the air conditioner as instructed in this booklet. These instructions are not intended to
cover every possible condition and situation. As with any electrical household appliance, common sense
and caution are therefore always recommended for installation, operation and maintenance.
Indicates a hazardous situation that, if not avoided, will
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, could
result in death or serious injury.
Indicates a hazardous situation that, if not avoided, may
result in minor or moderate injury.
Indicates important but not hazard-related information,
used to indicate risk of property damage.
Indicates a hazard that would be assigned a signal word
WARNING or CAUTION.
WARNING
CAUTION
DANGER
NOTICE
This appliance can be used by children aged 8 years and above and persons with reduced physical,sensory or
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction
concerning use of the appliance in a safe way and understand the hazards involved.
Children should not play with the appliance.
Cleaning and user maintenance shall not be performed by children without supervision.

IOM-Owner’s Manual - VFH-B 18/24 Series
THE INSTRUCTIONS BEFORE USE GENERAL INFORMATION
WARNING
If you have a burning smell or
smoke,please turn off the power
supply and contact your service
center.
The unit may be damaged,and
may cause electric shock or fire.
Power must match the circuit
to prevent fire.
Otherwise, it can cause electric
shock or fire.
Disconnect the power supply if
taking the air conditioner out of
use.
Otherwise,the accumulated dust
may cause overheating or fire.
Never damage the electric wire
or use the electric wire which
is not sized and matched
appropriately.
Otherwise,it will cause overheating
or fire.
When cleaning,it is necessary
to turn unit off and disconnect
the power supply.
Cut off power supply
Otherwise,it may cause electric
shock or damage.
This unit must match the circuit
breaker to assure it has enough
capacity. The unit will be turned
on or off according to your
requirement automatically, please
do not turn on or turn off the unit
frequently,this could damage the
unit.
Rated voltage of this air conditi-
oner is 208/230V, 60Hz, The
compressor will vibrate sharply
if the voltage is too low, or too
high. Electrical componentsare
easy to damage if the voltage is
too high.
Don't attempt to repair the air
conditioner by yourself.
The wrong repair will lead to an
electric shock or fire. You should
contact your service center to
repair.
Don't step on the top of the
outdoor unit or place anything
on it.
If it is damaged, it may lead to the
unit falling and cause injury and
damage.
Please insure that the insta-
lled stand is strong enough.
Grounding: The unit must be
reli-ably grounded. The
grounding cable shall be
connected to the spec-ial
grounding device in the
construction.
Never cut off or damage power
cables and control wires. If the
power cable and signal control
wire are damaged,
replacement must be
performed by professional.
2
★ ★
★ ★
★
★
★ ★
★ ★
★
★
2

IOM-Owner’s Manual - VFH-B 18/24 Series
3
A-VFH24TB-1
WARNING
A_VFH18DB-1
If the supply cord is damaged, it must be replaced by the service agent or a similarly qualified person in order
to avoid a hazard.
Be sure to cut off the power supply before cleaning the air conditioner; otherwise electric shock may happen.
Spraying your air conditioner with water may cause the risk of electric shock. Make sure not to use a hose on
your air conditioner.
Volatile liquids such as thinner or gasoline will cause damage to the appearance of air conditioner. (Only use
soft dry cloth moist cloth clean the air conditioner cabinet).
Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special
treatment is necessary.
The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper
tube.
OUTDOOR UNIT
No. Description
1 Air outlet grille
2Valve
Be sure to cut off the power supply before cleaning the air conditioner; otherwise electric
shock may happen.
Spraying your air conditioner with water may cause the risk of electric shock. Make sure
not to use a hose on your air conditioner.
Volatile liquids such as thinner or gasoline will cause damage to the appearance of air
conditioner. (Only use soft dry cloth or moist cloth to clean the air conditioner cabinet).
This product must not be disposed together with the domestic waste.
This product has to be disposed at an authorized facility for recycling of electrical and
electronic appliances.
The temperature of refrigerant circuit will be high,please keep the interconnection cable
away from the copper tube.
Note: The above figures are only intended as a simple
diagram of the appliance and may not correspond to the
appearance of the units that have been purchased.
Note: The above figures are only intended to be a simple
diagram of the appliance and may not correspond to
the appearance of the units that have been purchased.
No. Description
1 Air outlet grille
2Valve
OUTDOOR UNIT
NAME OF PARTS GENERAL INFORMATION
3
1
1
2
2
WARNING

IOM-Owner’s Manual - VFH-B 18/24 Series
4
P
L
H
Minimum power cord section
in
in
in
L
P
H
Fuse or air switch
35
14-1/4
27-1/2
MODE
25
2.1
A_VFH18DB-1
Electricity supply
Electrical data
208/230V,60HZ
mm
2
Size and clearance
P
L
H
Minimum power cord section
in
in
in
L
P
H
Fuse or air switch
36-1/4
15
31-1/8
MODE
208/230V,60HZ
mm
2
A-VFH24TB-1
30
3.3
Electrical data
Electricity supply
Size and clearance
TECHNICAL DATA GENERAL INFORMATION
TECHNICAL DATA GENERAL INFORMATION
OUTDOOR UNIT WORKING TEMPERATURE RANGE GENERAL INFORMATION
4
Maximum cooling
Maximum heating
48(118.4°F)/-
27(80.6°F)/-
OutdoorsideDB/WB( )
c

IOM-Owner’s Manual - VFH-B 18/24 Series
5
ELECTRICAL CONNECTIONS INSTALLER
5
1. Remove the handle at the right side plate of the outdoor
unit (one screw).
2. Remove the cable clamp, connect the power connection
cable with the terminal at the row of connection and affix
the connection. The fitting line distributing must be
consistent with the indoor unit. Wiring should match that
of indoor unit.
3. Affix power connection wire by wire clamp.
4. Ensure wire has been firmly attached.
5. Install the handle.
Note: the above figures are only intended to be a simple
diagram of the appliance and may not correspond to the
appearance of the units that have been purchased.
An all-pole disconnection switch having a contact
separation of at least 3mm in all pole should be
connected in fixed wiring.
Wrong wire connection may cause malfunction or
damage to some electric components. After
attaching cable, ensure that leads between
connection to fixed point have some space.
The connection pipes and the connecting wires of
the unit A and unit B must correspond to each other.
The appliance shall be installed in accordance with
national wiring regulations.
A-VFH18DB-1
A-VFH24TB-1 A-VFH18DB-1
L1
L2
To the power supply
To unit B
Power cord
To unit A
connecting
cable
L1
L2
Power cord
L1 L2
L1 L2
L1
L2
To the power supply
To unit A
L1 L2
A-VFH24TB-1
connecting
cable
connecting
cable
To unit B
connecting
cable
To unit C
connecting
cable
A-VFH18DB-1 25A
A-VFH24TB-1 30A
Including a circuit breaker with suitable
capacity, please note the following table.
Circuit breaker should include thermal
overload, it can protect the circuit-short and
overload. (Caution: please do not use fuse
only to protect the circuit)
Air-conditioner Circuit breaker capacity
C
C

IOM-Owner’s Manual - VFH-B 18/24 Series
6
INSTALLING THE OUTDOOR UNIT INSTALLER
EVACUATION INSTALLER
6
Do not install the outdoor unit in pits or air vents
Installing the pipes
Use suitable connecting pipes and equipment for
the refrigerant R410A.
Vacuum pump
Humid air left inside the refrigerant circuit can cause com-
pressor malfunction. After having connected the indoor
and outdoor units, bleed the air and humidity from the
refrigerant circuit using a vacuum pump.
(1) Unscrew and remove the caps from the 2-way and 3-
way valves.
(2) Unscrew and remove the cap from the service valve.
(3) Connect the vacuum pump hose to the service valve.
(4) Operate the vacuum pump for 10-15 minutes until an
absolute vacuum of 10 mm Hg has been reached.
(5) With the vacuum pump still in operation, close the
low-pressure knob on the vacuum pump coupling.
Stop the vacuum pump.
(6) Open the 2-way valve by 1/4 turn and then close it
after 10 seconds. Check all the joints for leaks using
liquid soap or an electronic leak device.
(7) Turn the body of the 2-way and 3-way valves. Discon-
nect the vacuum pump hose.
(8) Replace and tighten all the caps on the valves.
Vacuum pump Vacuum pump
Location
18 and 24K units use adapters that need to be
installed at the indoor and outdoor units.
Caution: Installation Must be Performed in
Accordance with the NEC/CEC by Authorized
Personnel Only.
conversion joint
●
INDOOR
UNIT
Connect to the
indoor unit
Refrigerant fluid direction of fiow
3-way valve
2-way valve
inlet
(2)Turn
(8) Secure
(7)Turn to open fully
(2)Turn
(8) Secure
(6) Openby 1/4 turn
(7)Turn to open fully
(2)Turn
(8) Secure
Valve cap
Valve cap
Service
The refrigerant pipes must not exceed the maximum
heights 10m(18Kx2&24Kx3).
Wrap all the refrigerant pipes and joints.
Tighten the connections using two wrenches wor-
king in opposite directions.
Use bolts to secure the unit to a flat, solid floor.
When mounting the unit on a wall or the roof, make
sure the support is firmly secured so that it cannot
move in the event of intense vibrations or a strong
wind.
Install the drain fitting and the drain hose
(for model with heat pump only)
Condensation is produced and flows from the out-
door unit when the appliance is operating in the
heating mode. In order not to disturb neighbours
and to respect the environment,install a drain fitting
and a drain hose to channel the condensate water.
Install the drain fitting and rubber washer on the
outdoor unit chassis and connect a drain hose to it
as shown in the figure.
Models(m) 18Kx2
Max. connection pipe length 20
Max. connection pipe length
(Simple one indoor unit) 10
24Kx3
60
20

IOM-Owner’s Manual - VFH-B 18/24 Series
7
Use suitable instruments for the refrigerant R410A.
Do not use mineral oils to clean the unit.
The installation must be done by trained and qualified service personnel with reliability according to this
manual.
Contact service center before installation to avoid the malfunction due to unprofessional installation.
When picking up and moving the units, you must be guided by trained and qualified person.
Ensure that the recommended space is left around the appliance.
Do not use any other refrigerant than R410A.
●
MAINTENANCE INSTALLER
INSTALLATION DIMENSION DIAGRAM INSTALLER
7
A-VFH24TB-1
A-VFH18DB-1
Space to the cover
200cm
30cm
50cm
(Air inlet side)
or above
or above
Space to the wall
(Air outlet side)
or above
30cm
or above
30cm
or above
or more
Space to the cover
50cm
Space to the cover
200cm
50cm
30cm
(Air inlet side)
or above
or above
Space to the wall
(Air outlet side)
or above
or more
Space to the cover
50cm

IOM-Owner’s Manual - VFH-B 18/24 Series
8
CHECK AFTER INSTALLATION INSTALLER
8
Check Items
Is the unit firmly mounted?
Has the gas leakage been checked?
Is the thermal insulation of the unit
sufficient?
Is the drainage smooth?
Does the power supply voltage match
the rated voltage specified on the
nameplate?
Are the lines and pipelines correctly
installed?
Are the models of lines in conformity
with requirements?
Are there any obstacles near the air
inlet and outlet of the indoor and out-
door units?
Have the length of refrigerating pipe
and refrigerant charge amount been
recorded?
Has the unit been safely grounded?
Problems Owing to Improper Installation
The unit may drop, vibrate or make noises
May cause unsatisfactory cooling (heating)
effect or damage to compressor
May cause condensation and water dripping
May cause condensation and water dripping
The unit may breakdown or the components
may burn out
The unit may breakdown or the components
may burn out
The unit may breakdown or the components
may burn out
The unit may breakdown or the components
may burn out
This is a critically charged product
and excess refrigerant is determined
by refrigerant line length.
Risk of electrical leakage