Asami AMV-Pd100W/NaB-K User manual

Thank you for choosing Commercial Air Conditioners ,please read this
owner’s manual carefully before operation and retain it for future reference.
Instruction of the
AMV D.C. inverter
Commercial Air Conditioners
Owner's Manual
Applicable Models :
AMV-Pd100W/NaB-K
AMV-Pd120W/NaB-K
AMV-Pd140W/NaB-K
AMV-Pd140W/NaB-M
AMV-Pd160W/NaB-K
AMV-Pd160W/NaB-M

User Notice
During using, the total capacity of indoor units in simultaneous service shall not exceed the
capacity of outdoor unit; Otherwise the cooling (or heating) output of each indoor unit will be low.
Install a circuit breaker (or fuse) to each indoor unit according to capacity of the unit and a
master circuit breaker to all indoor units. Each of the circuit breaker, which are normally on, is used
for short circuit and abnormal overload protection of indoor unit. The master circuit breaker is used
to supply or cut off power of all indoor units together. The general power supply of all indoor units
must be cut off before cleaning them.
For smooth start of air conditioner unit, the main power switch shall be put to “ON” position 8
hours before start.
Upon receiving of STOP signal by each indoor unit, the fan of related indoor unit will continue
to work for 20~70 seconds for purpose of utilizing the remaining cold air or heats in heat exchanger
and also make preparations for next use. This is normal.
When the run mode selected for indoor unit conicts against the run mode of outdoor unit,
the fault indicator on indoor unit will blink after 5 seconds or the operation of line controller display
will conict, while the indoor unit will be stopped. To resume the normal status in this case, you
shall switch the run mode of indoor unit until it does not conicts against the run mode of outdoor
unit. The cooling mode does not conict against the dehumidify mode, nor fan mode against other
modes.
During installation, do not mix communication lines with power cables. Be sure to separate
them at minimum spacing over 30cm; otherwise it might result in communication problem.
Make sure the heater band of the compressor work 8 hours continuously before the compressor
was started up when the system is being debugged or maintained.The syetem has to work more
than 30 minutes continuously once the compressor is started up,or damage to compressor may
occure.

Contents
1 Safety Considerations ..................................................................................... 1
2 Selection of Installation Location and Precautions.......................................... 2
2.1 Selection of Installation Location for Air Conditioner Unit ...................................... 2
2.2 Selection of Installation Location for Indoor Unit.................................................... 2
2.3 Select Installation Location of Outdoor Unit........................................................... 2
2.4 Cable Layout.......................................................................................................... 3
2.5 Grounding Requirement......................................................................................... 4
2.6 Noise Control ......................................................................................................... 4
2.7 Accessories for Installation Use ............................................................................. 4
3 Installation of Outdoor Unit.............................................................................. 4
3.1 Precautions on Installation of Outdoor Unit ........................................................... 4
3.2 Installation of Outdoor Unit .................................................................................... 5
3.3 Electrical Cable Connection................................................................................... 6
4 Connection of Indoor and Outdoor Unit........................................................... 7
4.1 Manifolding Mode of Connecting Pipe ................................................................... 7
4.2 Indoor and Outdoor Unit Capacity Code................................................................ 7
4.3 Allowable Length and Drop Height of Connecting Pipe ......................................... 8
4.4 Dimension of Connecting Pipe............................................................................... 9
5 Instructions for DIP Switch ............................................................................ 13
5.1 Set the addrss code and capacity code for indoor unit ........................................ 13
6 Filling of Refrigerant and Test Run ................................................................ 14
6.1 Filling of Refrigerant............................................................................................. 14
6.2 Calculating Mass of Additional Refrigerant .......................................................... 14
6.3 Inspection Items after Installation ........................................................................ 16
6.4 Test-running ......................................................................................................... 17
7 Operating Principle of Air-Conditioning Unit .................................................. 18
7.1 Heat Pump Type Mini D.C.Inverter Multi-Connected Air-Conditioning Unit ......... 18
8 Types of Indoor Units to Be Integrated.......................................................... 19
9 Maintenance Measures ................................................................................. 20
9.1 Inspection at the Beginning of Operational Season............................................. 20
9.2 Maintenance at the End of the Operational Season ............................................ 20
9.3 Maintenance Measures ....................................................................................... 21
10 Trouble Shooting ......................................................................................... 22
11 Unit Working Condition ................................................................................ 24
11.1 Rated working condition..................................................................................... 24
11.2 The range of production working temperature ................................................... 24

Instruction of the AMV D.C. inverter
1
1 Safety Considerations
1). Please read this manual carefully before use and operate correctly as instructed in the
manual.
2). You are specially warned to note the two symbols below.
WARNING!:A symbol indicating that improper operation might cause human death or
severe injuries.
CAUTIONS!: A symbol indicating that improper operation might cause human injury or
property damage.
WARNING!
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.
Please seek an authorized repair station for installation work. Improper installation might
cause water leakage, electric shock or re.
Please install at a place strong enough to support the weight of air conditioner unit. If not, the
air conditioner unit might fall down and cause human injury or death.
To ensure proper drainage, the drainage pipe shall be correctly installed according to
installation instructions. Take proper measures for heat preservation to prevent condensing.
Improper installation of pipes might cause leakage and wet the articles in the room.
Do not use or store ammable, explosive, poisonous or other dangerous substances beside
the air conditioner.
In case of trouble (e.g. burnt smell), please immediately cut off the main power of air
conditioner unit.
Keep air ow to avoid shortage of oxygen in the room.
Never insert your nger or any objects into air outlet and inlet grill.
Please take constant care to check if the mounting rack is damaged after long use.
Never modify the air conditioner. Please contact the dealer or professional installation
workers for repair or relocation of the air conditioner.
CAUTIONS!
Before installation, please check the power supply for compliance with the ratings on
nameplate. Check the power safety as well.
Before use, please check and confirm if the cables, drainage pipes and pipelines are
correctly connected, hence to eliminate the risk of water leakage, refrigerant leakage, electric shock
or re.
Main power must be securely earthed to ensure effective grounding of air conditioner unit
and avoid the risk of electric shock. Please do not connect the earthing cable to coal gas pipe,
water pipe, lightning rod or telephone line.
Once started, the air conditioner shall not be stopped at least after 5 minutes or longer;
otherwise service life the unit will be affected.
Do not let the child to operate the air conditioner unit.

Instruction of the AMV D.C. inverter
2
Do not operate the air conditioner unit with wet hands.
Please disconnect the main power before cleaning the air conditioner or replacing the air
lter.
Please disconnect the main power if to put the air conditioner unit out of use for a long
period.
Please do not expose the air conditioner unit directly under corrosive environment with water
or moisture.
Please do not foot on or place any goods on air conditioner unit.
After electrical installation, the air conditioner unit shall be energized for electrical leakage
test.
2 Selection of Installation Location and Precautions
2.1 Selection of Installation Location for Air Conditioner Unit
The installation of air conditioner unit must be in accordance with national and local safety
codes.
Installation quality will directly affect the normal use of air conditioner unit. The user is prohibited
from installation by himself. Please contact your dealer after buying this machine. Professional
installation workers will provide installation and test services according to installation manual.
Do not connect to power until all installation work is completed.
2.2 Selection of Installation Location for Indoor Unit
Avoid direct sunshine.
Ensure the hanger rod, ceiling and building structure have sufcient strength to support the
weight of air conditioner unit.
Drainage pipe is easy to connect out.
Air ow at inlet and outlet air is not blocked.
Indoor and outdoor connection pipes are easy to go outdoors.
Do not install at a place where ammable or explosive goods exist or ammable or explosive
gas might leak.
Do not install at a place subject to corrosive gas, severe dust, salty fog, smoke or heavy
moisture.
2.3 Select Installation Location of Outdoor Unit
Outdoor unit must be installed on a rm and solid support.
Outdoor unit shall be installed close to the indoor unit, hence to minimize the length and
bends of cooling pipe.
Avoid placing the outdoor unit under window or between two constructions, hence to prevent
normal operating noise from entering the room.
Air ow at inlet and outlet shall not be blocked.
Install at a well-ventilated place, so that the machine can absorb and discharge sufcient air.
Do not install at a place where flammable or explosive goods exist or a place subject to
severe dust, salty fog and polluted air.
Do not install induced draught pipe at the let and outlet of the outdoor unit. When the air

Instruction of the AMV D.C. inverter
3
conditioner unit is generating heats indoors, the condensate water may flow from the base of
outdoor unit. When outdoor air is below 0 (32 ), the condensate water will be frozen. Take care
that the installation of outdoor unit shall not affect the heat radiation of the unit.
Caution!
Installation at following positions might cause trouble to the air conditioner unit. If unavoidable,
please contact ASAMI Authorized Service Center.
① .
A place full of machine oil;
② .
A region with saline-sodic soil near the sea;
③ .
A place with sulphide gases (such as sulphur spring);
④ .
A place with high frequency facilities, such as radio equipment, electric welder or medical
equipment;
⑤ .
An environment with special conditions.
2.4 Cable Layout
Carry out installation in accordance with the state line layout rules.
The power supply must be of rated voltage of the unit and special electrical line for air-
conditioning.
Please do not pull the power supply line violently.
All electrical installation shall be carried out by professional technicians in accordance with
the local laws and regulations
The diameter of exible power cable must be large enough; damaged exible power cable
and connection cable must be replaced by exible cables of such special purpose.
Ensure safe grounding and the grounding wire shall be connected with the special grounding
equipment of the building and must be installed by professional technicians. In the xed line there
must be an electrical leakage protection switch and an air switch with sufficient capacity (refer
to the following table). The air switch shall also have the magnetic tripping and thermal tripping
functions to achieve protection of both short-circuit and overload.
An air switch having a contact separation of at least 3mm in all poles should be xed in xed
wiring.
Model power supply Switch of capacity
for air
Suggested conducting
line(*area of section)
AMV-Pd100W/NaB-K 220-240V~,50Hz 32 3×4.0
AMV-Pd120W/NaB-K 220-240V~,50Hz 32 3×4.0
AMV-Pd140W/NaB-K 220-240V~,50Hz 40 3×6.0
AMV-Pd160W/NaB-K 220-240V~,50Hz 40 3×6.0
AMV-Pd140W/NaB-M 380-415V 3N~ , 50Hz 16 5×1.5
AMV-Pd160W/NaB-M 380-415V 3N~ , 50Hz 16 5×1.5
NOTE:
① .
The specications of the breaker and power cable listed in the table above are determined
based on the maximum power (maximum amps) of the unit.
② .
The specications of the power cable listed in the table above are applied to the conduit-

Instruction of the AMV D.C. inverter
4
guarded multi-wire copper cable (like, YJV copper cable, consisting of PE insulated wires and a
PVC cable jacket) used at 40 and resistible to 90 (see GB/T 16895.15). If the working condition
changes, they should be modied according to the related national standard.
③ .
The specifications of the breaker listed in the table above are applied to the breaker
with the working temperature at 40 . If the working condition changes, they should be modied
according to the related national standard.
2.5 Grounding Requirement
As air-conditioning unit is of Class 1 electrical appliance, reliable grounding measures must
be taken for it.
The double color (yellow and green) cable inside the unit is specially used for grounding,
so it shall not be used for other purposes nor can it be cut. Do not tighten with tapping screws;
otherwise it might cause risk of electric shock.
The ground resistance shall be in conformity with the requirements of state standard
GB17790.
The user power supply shall have reliable grounding terminal. It is prohibited to connect the
grounding wire to the following items:
① .
Water Supply Pipe;
② .
Gas Pipe;
③ .
Sewage Pipe;
④ .
Other positions that are considered to be unreliable by professionals.
2.6 Noise Control
Install the air conditioner unit at a well-ventilated place; otherwise it might result in decreased
working capacity or higher noise.
Install the air conditioner unit securely on a base that can fully support its weight; otherwise
vibration and noise might be caused.
Install the outdoor unit so that the hot air or noise will not disturb your neighbors.
Do not place any obstacle close the outlet of outdoor unit; otherwise it might result in
decreased working capacity or higher noise.
If the air conditioner gives out abnormal noise during use, please immediately contact your
dealer.
2.7 Accessories for Installation Use
For the accessories for installation of indoor units and outdoor unit, please see the Packing List
in the package.
3 Installation of Outdoor Unit
3.1 Precautions on Installation of Outdoor Unit
To ensure the unit in proper function, selection of installation location must be in accordance
with following principles:
Outdoor unit shall be installed so that the air discharged by outdoor unit will not return and
that sufcient space for repair shall be provided around the machine.
Place of installation must be well ventilated so that the machine can absorb and discharge

Instruction of the AMV D.C. inverter
5
sufcient air. Ensure the air inlet and outlet of the machine are not blocked. If blocked, please clear
off the obstacles blocking the air inlet or outlet.
Place of installation shall be strong enough to support the weight of outdoor unit, and it shall
be able to insulate noise and prevent vibration. Ensure that the wind and noise from the unit will not
affect your neighbors.
Outdoor unit must be lifted by using designated lifting hole. Take care to protect the unit
during lift. To avoid rusting, do not knock the metal parts.
Try best to avoid direct sunshine.
Place of installation must be able to drain the rainwater and defrosting water.
Place of installation must ensure the machine will not be buried under snow or subject to the
inuence of rubbish or oil fog.
To meet the noise and vibration requirements, the outdoor unit shall be installed with rubber
damper or spring damper.
Installation dimension shall be in accordance with the installation requirements in this
manual. Outdoor unit must be securely xed to the position.
The unit shall be installed by professional technicians.
3.2 Installation of Outdoor Unit
3.2.1 Outline Dimension of Outdoor Unit
Outline Dimension of AMV-Pd100W/NaB-K,AMV-Pd120W/NaB-K,AMV-Pd140W/NaB-K,AMV-
Pd160W/NaB-K,AMV-Pd140W/NaB-M,AMV-Pd160W/NaB-M.
950
572
1250
378
340
To handle the outdoor unit, you must use two ropes of sufcient length to lift on four directions;
To avoid displacement of unit center, the angle of the ropes must be kept lower than 40° during lift
and movement. During installation, tighten the support and base of the unit by using M10screws.

Instruction of the AMV D.C. inverter
6
3.2.2 Space dimension for installation of the unit is shown below.
AMV-Pd100W/NaB-K,AMV-Pd120W/NaB-K,AMV-Pd140W/NaB-K,AMV-Pd160W/NaB-K,AMV-
Pd140W/NaB-M,AMV-Pd160W/NaB-M Outdoor Unit Installation Space Dimension
＞500 ＞500
＞500
＞500＞2000
＞1000
＞2000
Outdoor unit shall be installed on a concrete base 10cm high.
3.3 Electrical Cable Connection
Cautions!
① .
Outdoor unit and indoor unit may be of unied power supply or separate power supply. But
the indoor units must be of unied power supply.
② .
Be sure install a circuit breaker that can cut off the power of complete system.
3.3.1 Power Cable Connection:
1). Pass the cable though rubber ring.
2). AMV-Pd100W/NaB-K,AMV-Pd120W/NaB-K,AMV-Pd140W/NaB-K,AMV-Pd160W/NaB-
K,AMV-Pd140W/NaB-M,AMV-Pd160W/NaB-M to connect the power cable to the terminal
marked “L & N” and earthing screws.
3). Fix the cables with cable clamp.
3.3.2 Connection of Distribution (Communication) Line:
1). Open the electric box on outdoor unit.
2). Pass the distribution (communication) line into the base and through the rubber ring of
electrical box.
3). Insert the distribution (communication) line into 3-pin terminal CN10 or CN20 on outdoor
unit circuit board.
4). Fix the distribution (communication) lines properly.
5). Put back the junction cover plate and tighten the screws. Cover up the panel.

Instruction of the AMV D.C. inverter
7
4 Connection of Indoor and Outdoor Unit
4.1 Manifolding Mode of Connecting Pipe
Connecting pipes for indoor unit and outdoor unit are in manifold mode. (As shown below).
Cotroller
Indoor unit
Y-Type manifold
Outdoor unit
4.2 Indoor and Outdoor Unit Capacity Code
Capacity Level Capacity Code Capacity Level Capacity Code
Indoor Unit
Type 22 22 Type 56 56
Type 25 25 Type 71 71
Type 28 28 Type 80 80
Type 36 36 Type 90 90
Type 45 45 Type 112 112
Type 50 50 Type 140 140
Type 56 56
Outdoor Unit
Type 100 100
Type 120 120
Type 140 140
Type 160 160
The No. of connectable indoor units should be at least 2.
One outdoor unit can drive up to16 indoor units in maximum.
The sum of indoor unit capacity codes can be selected 50%-135% of outdoor unit capacity
code number.
Y-Type Manifold Pipe
Y-type manifold pipe can be selected from following list:
Total capacity of downstream indoor unit X Model
Y-Type Manifold Pipe
X 200 FQ01A/A
200 X 300 FQ01B/A
300 X 700 FQ02/A

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8
4.3 Allowable Length and Drop Height of Connecting Pipe
AMV-Pd100W/NaB-K, AMV- Pd120W/NaB-K, AMV- Pd140W/NaB-K, AMV- Pd160W/NaB-
K,AMV-Pd140W/NaB-M,AMV-Pd160W/NaB-M
Allowable Value Fitting Pipe
Total length (actual length) of tting pipe 150m L1+L2+L3+a+b+c+d
Length of farthest tting
pipe (m)
Actual length 70m
L1+L2+L3+d
Equivalent length 80m
Equivalent length from the 1st manifold pipe
to farthest tting pipe (m) 25m L2+L3+d
Height difference
between outdoor unit
and indoor unit
Outdoor unit at
upper 30m ——
Outdoor unit at
lower 25m ——
Height difference between indoor units (m) 10m ——
Height difference between indoor unit and
outdoor unit:
H
≤
30m
The 1st
branch section
Equivalent length of farthest pipe: L
≤80m
The equivalent length of the farthest pipe from the 1st branch: L ≤25m
The equivalent length is designed based on every 0.5m for each Y-type branch pipe
Outdoor unit
Indoor unit
Indoor unit
Height difference between indoor units:
H
≤
10m
a
d
c
b
L1
L2
L3

Instruction of the AMV D.C. inverter
9
4.4 Dimension of Connecting Pipe
4.4.1 The fitting pipe (main pipe) from outdoor unit to the 1st manifold has the same
dimension as the tting pipe on outdoor unit.
Dimension of Indoor Unit Fitting Pipe
Item
Model
Connection Pipe
Liquid Pipe Gas Pipe Connection type
AMV-Pd100W/NaB-K Φ9.52 Φ15.9 Flare connection
AMV-Pd120W/NaB-K Φ9.52 Φ15.9 Flare connection
AMV-Pd140W/NaB-K
AMV-Pd140W/NaB-M Φ9.52 Φ15.9 Flare connection
AMV-Pd160W/NaB-K
AMV-Pd160W/NaB-M Φ9.52 Φ19.05 Flare connection
4.4.2 Dimension of the fitting pipes (manifold pipe) between manifolds is selected
according to the capacity of the connected downstream indoor unit. The capacity of
outdoor unit shall prevail if exceeded.
Total Capacity of Indoor Units Gas Pipe Liquid Pipe
C 50 Φ12.7 Φ6.35
50 C 140 Φ15.9 Φ9.52
140 C 180 Φ19.05 Φ9.52
4.4.3 The fitting pipe (indoor fitting pipe) from manifold to indoor unit has the same
dimension as the indoor unit tting pipe.
Dimension of Indoor Unit Fitting Pipe Unit:mm
Capacity of Indoor Unit Gas Pipe Liquid Pipe
Model 22,25,28 Φ9.52 Φ6.35
Model32 ,36,40,45,50 Φ12.7 Φ6.35
Model 36,45,50 Φ12.7 Φ9.52
Model 56,63,71,80,90,112,125,140 Φ15.9 Φ9.52
Note: When the capacity of indoor unit less than 5kW, if the distance from the nearest manifold
to the indoor unit exceeds 10m, the tting pipe on liquid side of the pipe shall be increased of one
dimension.

Instruction of the AMV D.C. inverter
10
Fitting Pipe for
Indoor unit Flaring Nuts Fitting Pipe
Spanner Torque Spanner
4.4.4 Connection of Outlet Pipe for Indoor & Outdoor Unit
See below for the torque required to tighten the nuts.
Align the expansion end of copper pipe with the center
of threaded joint. Tighten the aring nuts with your hands.
Tighten the aring nuts with torque wrench until you
hear a “click”.
Bend of tting pipe shall not be too low; otherwise the
tting pipe might crack. Please use pipe bender when
bending the tting pipe.
Use sponge to wrap the connecting pipe and joints without heat preservation. Tie with plastic
tapes.
Torque Sheet for Tightening Nuts
Pipe Diameter (mm) Wall Thickness (mm) Tightening Torque (N·m)
Φ6.35 0.5 15-30
Φ9.52 0.7 30-40
Φ12.7 1 45-50
Φ15.9 1 60-65
Φ19.05 1 70-75
Caution:
1) When connecting indoor unit and pipe, never pull the big and small joint of indoor unit with
force, so as to prevent the capillary tube or other tubes of indoor unit from cracking and causing
leakage.
2) Connecting pipe shall be supported by a rack without transmitting its weight to other units.
4.4.5 Connection of Manifold Pipe
Y-Type Manifold Pipe
Inlet
Outlet 1
Outlet 2
Outdoor Unit
Y-shaped manifold
To the connection pipe
or indoor unit
Field suppliedField supplied
Y-type manifold pipe is equipped with auxiliary tubes to adjust the diameter of different pipes.
If the dimension of the pipe selected for site use is different from the dimension of manifold pipe
joint, use the pipe cutter to cut from the middle of the pipe with different dimensions, and deburr as
well. Please see below.

Instruction of the AMV D.C. inverter
11
Y-type manifold pipe must be installed so that the manifold is in vertical or horizontal
direction.
Within±30℃Within±30℃
Cut in the middle
On air pipe side, heat preservation materials able to endure 120 or a high temperature
shall be used for heat preservation of manifold pipe. Do not use the foam on manifold pipe as the
material for heat preservation. To prevent liquid pipe from leaking, it is required to connect the two
types of heat preservation materials end to end, i.e. the foam material on manifold pipe and the
heat preservation material used on site. After that, wrap up the joints between the two types of
materials.
Caution:
For multi-split air conditioner system, each pipe shall be pasted with label to identify the pipe for
each system and avoid wrong connection.
4.4.6 Installation of Protective Layer on Connection Pipe
1). To avoid condensate dew or water leakage on connecting pipe, the air pipe and liquid
pipe must be wrapped with heat preservation material and adhesive pipe for insulation
from the air.
2). The joints on indoor unit and outdoor unit must be wrapped with heat preservation
materials and have no clearance against the wall surface of indoor unit and outdoor unit.
No Clearance
Caution:
When the pipe is properly protected, do not bend it to a very small angle; otherwise the pipe
might crack or broken.

Instruction of the AMV D.C. inverter
12
3). Wrap the pipe with tapes.
(1). Use the adhesive tape to wrap the connecting pipe and cable into one bundle. To prevent
condensate water from overowing out of the drainpipe, the drainpipe shall be separated
from connecting pipe and cable.
(2). Wrap the heat preservation tape so that each ring of tape shall press half of the previous
ring.
(3). Fix the wrapped pipe onto the wall with pipe clamp.
Caution:
① .
Do not wrap the protective tape too tightly, as this will decrease the heat insulation
performance. Ensure that the drain hose of condensate water is separated.
② .
After completing the protection work and wrapping the pipe properly, close the wall holes
with sealing materials.
4.4.7 Connection of Communication Line for Indoor Unit and Outdoor Unit
Open the electrical box of indoor unit and outdoor unit. Insert the distribution line
(communication line) into electrical box via cable hole. Be sure to connect the indoor unit and
outdoor unit in accordance with the wiring diagram labeled on the unit. (Refer to the electrical wiring
of indoor unit and outdoor unit). The specication of power cable shall be selected in reference to
the power capacity and installation environment of the unit. If no error, press wire clip respectively
onto the cables tightly and then reinstall the electrical box cover. Magnetic rings shall be installed
on two ends of the communication line.
Connect communication wire of indoor and outdoor unit by the following
Outdoor unit
CN10
Terminal board Terminal board Terminal board Terminal board
Indoor unit A Indoor unit B Indoor unit N
Wiring
（resistance matching）
Power supply
220-240V ~50Hz
Power supply
220-240V ~50Hz
Power supply
220-240V ~50Hz
Power supply
220-240V ~50Hz
Outdoor unit
Terminal board Terminal board Terminal board Terminal board
Indoor unit A Indoor unit B Indoor unit N
Wiring
（resistance matching）
Power supply
380-415V 3N~ 50Hz
CN20
Power supply
220-240V ~50Hz
Power supply
220-240V ~50Hz
Power supply
220-240V ~50Hz

Instruction of the AMV D.C. inverter
13
5 Instructions for DIP Switch
5.1 Set the addrss code and capacity code for indoor unit
Set the address of the indoor unit according to the layout of the AC system , the address can’t
repeat in a same system.
8 bit DIP is adopted on the main board of the indoor unit to assign the indoor’s address and
capacity . The 5~8 bit that is used to assign the indoor’s capacity has been set before shipment.It’s
only to adapt the 1~4 to set the indoor’s address before installation.
4 bit DIP is adopted to the main board of wired controller to assign the address . The wired
controller’s address must be same with its corresponding indoor unit.
The mainboard of the wire controller has a 4-bit DIP controller to
allocate the address of the controller. The address of the wire
controller must be identical with the address of the corresponding
indoor unit.
Address Setting of Indoor Unit and Wire Controller Are Shown in the Following Table:
Bits 1~4 for Address Setting
Corresponding Pins of the 8-Bit (4-Bit) DIP Switch
4321Allocated
Address 4321Allocated Address
0 0 0 0 1 1 0 0 0 9
0 0 0 1 2 1 0 0 1 10
0 0 1 0 3 1 0 1 0 11
0 0 1 1 4 1 0 1 1 12
0 1 0 0 5 1 1 0 0 13
0 1 0 1 6 1 1 0 1 14
0 1 1 0 7 1 1 1 0 15
0 1 1 1 8 1 1 1 1 16
Note: The position “ON” means “0”.
ON
1 2 3 4
DIP

Instruction of the AMV D.C. inverter
14
6 Filling of Refrigerant and Test Run
6.1 Filling of Refrigerant
1). Before shipped out from manufacturer, the outdoor unit has been lled with refrigerant.
Additional refrigerant may be lled when carrying out site connection of pipelines.
2). Check the liquid valve and the gas valve of the outdoor unit. The valves shall be
completely shut off.
3). Connect a vacuum pump to the liquid valve and the gas valve of the outdoor unit to
remove air from the inside of the indoor unit and the connecting pipe. Refer to the
following gure:
"LO"Knob "HI"Knob
Vacuuming pump
Manometer Manometer
Connection hose
Gas valve
Liquid valve
4). After conrming that there is no leakage from the system, when the compressor is not in
operation charge additional R410A working uid with specied amount to the unit through
the lling opening of the liquid pipe valve of the outdoor unit.
6.2 Calculating Mass of Additional Refrigerant
Note:
① .
The mass of refrigerant in the system when delivered from manufacturer does not include
the mass of additional refrigerant needed by the piping connecting the outdoor unit and the indoor
unit.
② .
As the length of the connecting pipe is decided on site, the amount of additional refrigerant
shall be decided depending on the size and the length of the liquid pipe used on site.
③ .
t is not needed to add refrigerant if the total length of liquid pipe is within 50m.

Instruction of the AMV D.C. inverter
15
6.2.1 Method of Calculating Mass of Additional Refrigerant to Be Filled (Based on the
Liquid Pipe)
Mass of Additional Refrigerant to Be Filled =∑ Length of Liquid Pipe × Amount of Additional
Refrigerant to Be Filled Per Meter of Liquid Pipe
Φ22.2 Φ19.05 Φ15.9 Φ12.7 Φ9.52 Φ6.35
0.35 0.25 0.17 0.11 0.054 0.022
6.2.2 Example for calculation
d
c
b
a
Indoor unit
①②③④
B
A
C
Outdoor unit
D
Indoor unit:
SN Model
Indoor unit Cassette type
Indoor unit Wall Mounted type
Indoor unit Single Side Air Supply type
Indoor unit Ducted type
Liquid Pipe:
SN A B C D
Diameter of the pipe Φ9.52 Φ9.52 Φ9.52 Φ6.35
Length 30m 10m 5m 5m
SN a b c d
Diameter of the pipe Φ9.52 Φ6.35 Φ6.35 Φ6.35
Length 10m 10m 10m 10m
Total length of liquid pipes:
Φ9.52:A+B+C+a=30+10+5+10=55m
Φ6.35:D+b+c+d=5+10+10+10=35m
Notes: if total length is less than 50 meters, there is no need to add extra refrigerant.
So, the minimum required refrigerant amount should be=(55-50) 0.054+35 0.022=1.04kg.

Instruction of the AMV D.C. inverter
16
6.2.3 Record table for refrigerant charge
Indoor units:
SN Indoor model number Extra Refr. amount (kg)
1
2
……
N
Total amount
Liquid pipe:
Liquid pipe diameter Total length (m) Extra Refr. amount (kg)
Φ15.9
Φ12.7
Φ9.52
Φ6.35
Total amount
6.3 Inspection Items after Installation
Inspection items Problems Owing to Improper Installation Check
Is the installation reliable? The unit may drop, vibrate or make noises
Has the gas leakage been checked? May cause unsatisfactory cooling (heating)
effect
Is the thermal insulation of the unit
sufcient?
May cause condensation and water
dropping
Is the drainage smooth? May cause condensation and water
dropping
Does the power supply voltage accord
with the rated voltage specied on the
nameplate?
The unit may bread down or the
components may be burned out
Are the lines and pipelines correctly
installed?
The unit may bread down or the
components may be burned out
Has the unit been safely grounded? Risk of electrical leakage
Are the models of lines in conformity with
requirements?
The unit may bread down or the
components may be burned out
Are there any obstacles near the air inlet
and outlet of the indoor and outdoor units?
May cause unsatisfactory cooling (heating)
effect
Have the length of refrigerating pipe and
refrigerant charge amount been recorded?
It is not easy to decide the charge amount
of refrigerant.

Instruction of the AMV D.C. inverter
17
6.4 Test-running
6.4.1 Inspection item before Test-running
Inspect that whether the appearance and pipe system are damaged when the unit was
transported or convied.
Inspect that whether the electronic components in the units are installed rmly and correctly
Inspect that whether the fan rotates in right direction.
Inspect that whether the valves are all openned
6.4.2 steps for running test
Besides the above points ,test-running must be operated by professional.
Power the units , then turn on the wired controller and remote controller.
The indoor fan and compressor will start-up automatically in one minutes .
Turn off and inspect the compressor immediately if there is any abnormal noise after the
compressor was start-up