Haier InoSens MRV SI AU052FPEUA User manual

Installation Manual for Outdoor Unit
No. 0150541142
• This product must only be installed or serviced by qualied personnel.
Please read this manual carefully before installation.
Keep this operation manual for future reference.
Original instructions
AU032FSEUA
AU052FPEUA
AU072FPEUA

Contents
Product Features........................................................... 1
Safety ............................................................................ 1
Transportation and Lifting.............................................. 3
Installation instruction.................................................... 4
Electric wiring and the application ............................... 14
Installation and debugging........................................... 18
Failure code................................................................. 19
Trial operation and the performance ........................... 22
Move and scrap the air conditioning............................ 24
User Manual
Operation condition:
To use the air conditioner normally, please perform as to
the below conditions.
Operating Range of Air Conditioner
Cooling
dry
Indoor Max. DB:32°C WB:23°C
Min. DB:18°C WB:14°C
Outdoor Max. DB:50°C WB:26°C
Min. DB:-5°C
Heating
Indoor Max. DB:27°C
Min. DB:15°C
Outdoor Max. DB:27°C WB:15°C
Min. DB:-20°C
Warning
• If the supply cord is damaged, it must be replaced by
the manufacturer, its service agent or similarly qualied
persons in order to avoid a hazard.
• 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.
• This appliance can be used by children aged from 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
shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without
supervision.
• The appliances are not intended to be operated by
means of an external timer or separate remote-control
system.
• Keep the appliance and its cord out of reach of children
less than 8 years.
CE
All the products are in conformity with the following
European provision:
-Low voltage Directive
-Electomagnetic Compatibility
Important matters
• The company does not assume any responsibility for the
accidental damage caused by the operation of the air
conditioner in a particular environment.
• The air conditioner can only be used as an ordinary air
conditioner.
• Do not use this heat pump air conditioner for dry clothing,
frozen food, cooling or heating, etc.
• No part of this manual may be copied without permission.
• Bold text (warning, prohibition, attention) used to indicate
the degree of risk. The following is a descriptionof the
text and symbols in the explanatory notes:
• If you have any questions, please contact the dealer or
the service center designated by our company.
• Please install air conditioning in accordance with local
standards.
WARNING:
Indicates a potentially hazardous situation
which, if not avoided, will result in death or
serious injury.
PROHIBIT:
Do not carry out the operation.
CAUTION:
Sometimes it can cause serious accidents.

1
WARNING
• If the air conditioner is transferred to the others, this manual should be tranferred together.
• Before installation, please read "Safety precaution" carefully to conrm the correct installation.
• The mentioned precaustion includes " WARNING" and " CAUTION". The precausion caused death or heavy injury
for faulty installation will be listed in " WARNING". Even the cautions listed in " CAUTION" also may cause serious
accident. So both of them are related to the safety, and should be executed severely.
• After installation, perform a trial and conrm everything normal, then introduce the operation manual to the user.
Besides, put the manual to the user and ask them to preserve it carefully.
• The installation or the maintenance should be performed by the authorized agency. Or the non-specialized operation will
cause water leakage, electric shock or re etc accidents.
• The installation should be executed as per the manual, or the faulty installation will cause water leakage, electric shock
or re etc accidents.
• Please install the unit at the space which can bear the weight. Or the unit will drop down to cause the human injury.
• The installation should defend against the typhoon, and the earthquake etc. Abnormal installation will cause the unit fall
down.
• Use the correct cable and make reliable earthing. Fix the terminal rmly and the loose connection will cause heating or
re etc accident.
• The wiring should be in shape and can not be raised. Be earthed rmly and can not be clipped by the electric box cover
or the other plate. The incorrect installation will cause heating or re.
• When setting or transferring the unit, there should not be other air into the refrigerant system except for R410A. The gas
mixture will cause the abnormal high pressure which will cause break or human injury etc accidents.
• When installation, please use the accessories with the unit or the special parts, or it will cause water leakage, electric
shock, re, refrigerant leakage etc accidents.
• Don't lead the water drainage pipe into the drainage groove with the poisonous gas, such as sulphur. Or the poisonous
gas will enter indoor.
• In installation or after installation, please conrm if there is refriegerant leakage, please take measures for ventilation.
The refrigerant will cause poisonous gas as meeting re.
• Don't install the unit at the place where there may be ammable gas leakage. In case the gas leaks and gather around
the unit, it will cause re.
• The drainage pipe should be installed as per the manual to conrm the uent drainage. Also take measures for heat
insulation against dew drop. Incorrect water pipe installation will cause water leakage even and make the things wet.
• For the liquid pipe and the gas pipe, take measures for heat insulation too. If there is no heat insulation, the dew drop
will wet the things.
Product Features
Safety
• The outdoor uint adopts "simultaneous control" type, all indoors should be heating or cooling simultaneously.
• To protect compressor,before startup,the unit should be electried for 12 hours.If the unit is not used for a long time,
please cut o󰀨 the power to save energy, or the unit will consume the power.
This manual describes the installation and installation of outdoor units. For the installation of the indoor machine, please
refer to the instruction manual of the indoor machine.
Please read the installation instructions carefully before installation, according to the instructions of the installation
construction.
PROHIBIT
• Th is system using R410A refrigerant, prohibit lling oxygen, acetylene or other ammable and toxic gases in the air or
test, because these gases are very dangerous and may cause explosion. It is recommended to use compressed air,
nitrogen or refrigerant for such tests.
• Indoor or outdoor machines are not allowed to water. All of these products are equipped with electrical components,
which may cause serious electric shock accidents.
• Do not touch or adjust the safety device in the indoor or outdoor machine. If touching or adjusting these devices can
cause serious accidents.

2
CAUTION
R-410A specied tools Remarks
1Gauge manifold Range: HP ＞4.5MPa, LP ＞2MPa
2Charge hose Pressure: HP: 5.3MPa, LP: 3.5MPa
3Electronic balance for charging R410A Can not use the measurable charging tank
4Torque spanner
5Flare tool
6Copper pipe gauge for adjusting projecting margin
7Vacuum pump adapter Must be with reverse stop valve
8Leakage detector Can not use freon leakage detector, but the He detector
• Execute earthing for the unit. But the earthing wire can not be connected to the gas pipe, water pipe, lightening rod or
the telephone earthing wire. Improper earthing will cause electric shock.
• Don't install the unit at the place where leaks the ammable gas. Or it will cause re.
• Execute the water drainage pipe according to the manual, improper installation will cause water leakage to wet the
family things.
• The outdoor fan can not face to the ower or the other vegetable, or the blowing gas will make the ower dried up.
• Please ensure the maintenance room, if not, it will cause the maintenance person damaged.
• When installing the unit on the roof or the other high place, to prevent the person falling down, please set the xed
ladder and the railing at the passage.
• Use the two-end spanner, and fasten the nut at proper torque. Don't fasten the nut excessively against the ared setion
broken. Or it will cause refrigerant leakage and lack of oxygen.
• Take measures for heat insulation to the refrigerant pipe, or there will be water leakage or dew drop to wet the family
things.
• After nishing the refrigerant pipe, make leakage test by charging the nitrogen. In case the refrigerant leaks in a small
room and exceeds the limited concentration, it will cause lack of oxygen.
• Don't use the other refrigerant except for R410A. The R410A pressure is 1.6 times higher than R22 pressure. The
refrigerant R410A tank is marked with pink sign.
• Against charging di󰀨erent refrigerant, we changed the stop valve diameter of the R410A unit. To enhance the
compression consistance, we also changed the ared pipe dimension. Prepare the R410A specially tools according to
the below table.
• The maintenance cover plate of the indoor or outdoor machine is forbidden when the main circuit power supply is not
cut o󰀨.
• The leakage of refrigerant can cause the air to be thin and di󰀩cult to breathe. In case of refrigerant leakage, close the
main valve, extinguish any ame and contact the local distributor immediately.
• Please use ELB (leakage protector). If not used, an electric shock or re may occur when an accident occurs.
• The installation and Service Engineer shall ensure that the refrigerant leaks comply with local laws and regulations.
Safety
• When charging refrigerant, the refrigerant must be taken out as liquid state from the tank.
• When installing the power cord and the connecting line must be at least 1m from the TV or radio, so as to avoid image
interference or noise.
• In the room with uorescent lamp (reverse or fast start type), remote control signal transmission distance may not reach
the predetermined value, so the indoor machine installed away from the uorescent lamp as far as possible.
• Please use the fuse to meet the capacity requirements.
• To prevent the destruction of wires, electrical components, etc. by rats or other animals.
• Recommended room ventilation every 3 to 4 hours.
Arrival inspection
• After receiving the machine, should check whether there is transport damage. If any damage is found on the
surface or inside, it shall be reported immediately to the shipping company in writing.
• Check the product model, electrical parameters (power supply, voltage, frequency) and accessories to
determine whether they meet the requirements.

3
Transportation and Lifting
Lifting
Manual handling
In front of the unit shipped from unpacking location as close
as possible.
CAUTION
• Do not place anything on the device.
• Two ropes shall be used for lifting the outdoor unit.
CAUTION
• In order to ensure safety, maintain the level of lifting,
slowly lifting.
• Do not lift the elevator to the packing and outer packing
of the equipment.
• External protection should be used when lifting, such as
cloth or cardboard.
CAUTION
• In the installation and commissioning, the outdoor machine do not put any irrelevant material, to ensure that there is
no debris inside the machine, or there may be a fire or accident.
rope
Over 60 degrees
0.7~1.0 meters
Do not remove
packing tape and
packing box.
As shown in the
rope through
the wood base
around the lifting
hole.
Hoisting method
Hoisting to ensure that the level of outdoor machine, slowly
lifting.
1. Removal of outer packing is strictly prohibited
2. As shown by two ropes hoist with outdoor machine
packaging.
Pay attention to the following points when handling the equipment manually:
1. No demolition wood base.
2. In order to prevent the dumping of the outdoor machine, the center of gravity of the unit should be noted as shown in
the gure.
3. Two or more people to carry out the outdoor machine.
Focus
Wood base
Handle hole
This product maximum tilt
angle 20 degrees.

4
In installation, please check specially the below items:
• If the connected units quantity and the total capacity is in the allowable range?
• If the refrigerant pipe length is in the limited range?
• If the pipe size is proper? And if the pipe is installed horizontally?
• If the branch pipe is installed horinzontally or vertically?
• If the additional refrigerant is counted correctly and weighed by the standard balance?
• If there is refrigerant leakage?
• If all the indoor power supplies can be on/o󰀨 simultaneously?
• If the power voltage is in compliance with the data marked on the rating label?
• If the address of indoors has been set?
(1) Before installation
1) Before installation, check if the model, power supply, pipe, wires and parts purchased respectively are correct.
2) Check if the indoors and outdoors can be combined as the following.
Outdoor Indoor
Capacity
(100w)
Combination
type Indoor qty Total indoor capacity (100w)
80 Single 4 40-104
140 Single 8 70-182
180 Single 9 90-234
indoor capacity
(100W)
22
28
36
40
45
56
71
total indoor
capacity
(100W)
branch pipe
(optional)
less than 335 FQG-B335A
Installation instruction
Notice:
• Total capacities of indoor units being used ≤ 100% of rated
capacities of outdoor unit.
• The maximum number and total capacity of indoor units are
shown in the table above.If the total capacity of the indoor units is greater than the rated capacity of the outdoor unit, the
actual cooling or heating e󰀨ect of each indoor units may not reach its rated capacity.
(2) Installation place selection
Air-conditioner can't be installed
in the place with inammable
gas. Or it will cause re hazard.
The unit should be installed at the
place with good ventilation. No
obstacle at the air inlet/outlet. And no
strong wind blows the unit.
The installation space refers to the
latter info.
The unit should be installed at the strong
enough place. Or it will cause vibration and
noise.
• The unit is better not be installed at the
below places, or it will cause damage.
• The place where there is corrosive gas
(spa area etc).
• The place blowing salty air (seaside etc).
• Exsits the strong coal smoke.
• The place with high humidity.
• The place where there is device emitting
Hertzian waves.
• The place where voltage changes greatly.
• The place where the water can ow
uently.
• The place where no other heat
source will a󰀨ect the unit.
• Pay attention to the snow against
clogging the outdoor.
• In installation, install the anti-
vibration rubber between the unit
and the bracket.
The unit should be installed at
the place where the cold/hot
air or noise will not interfere the
neighbours.

5
Note:
1. In snowy area, install the unit under the bracket or the snow-proof cover against the accumulative snow on the unit.
2. Do not install the unit at the place where the ammable gas will leak.
3. Install the unit at the strong enough place.
4. Install the unit at the at place.
5. When being installed at the place with strong wind, set the air outlet of the unit and the wind direction vertical.
6. The installation site should be far away from the place where the noise is higher. At the same time for the noise of
higher places should ensure that the outdoor machine vibration and wall insulation measures to prevent vibration
caused by thin wall or acoustic noise problems.
7. Aluminum foil n is very sharp, pay attention to prevent scratches.
8. In addition to the maintenance of the roof, or the installation of outdoor machines, other people can not contact the
outdoor machine.
(3) Installation and maintenance space
Selection of installation location of outdoor
(1) Single-unit installation (unit: in.(mm))
The top and two side surfaces must be exposed to open space, and barriers on at least one side of the front and back
shall be lower than the outdoor unit.
Installation instruction
(2) Multi-unit installation (unit: in.(mm))

6
(3) Multi-unit installation in front and back (unit: in.(mm))
The top and two side surfaces must be exposed to open
space, and barriers on at least one side of the front and back
shall be lower than the outdoor unit.
• The installation service spaces shown in the illustrations are based on an air intake temperature of 95°F(35°C)(DB)
for COOL operation. In regions where the air intake temperature regularly exceeds 95°F(35°C)(DB), or if the heat load
of outdoor units is expected to regularly exceed the maximum operating capacity, reserve a larger space than that
indicated at the air intake side of units.
• Regarding the required air outlet space, position the units with consideration to the space required for the onsite
refrigerant piping work as well. Consult your dealer if the work conditions do not match those in the drawings.
NOTICE
If drain holes of the outdoor unit are covered by a mounting base or by oor surface, raise
the unit in order to provide a free space of more than 5in.(130mm) under the outdoor unit.
Foundation work
• Check the strength and level of the installation ground so that the unit will not cause any
operating vibration or noise after installation.
• In accordance with the foundation drawing in the gure, x the unit securely by means of
the foundation bolts.
• It is best to screw in the foundation bolts until their length are 0.8in.(20mm) from the
foundation surface.
˃5in.(130mm)
• Fix the outdoor unit to the foundation bolts using nuts with resin washers(1) as shown in the gure.
1
(4) Precautions on installation
Installation instruction
• If there is no need to install the outdoor machine in the open space of the building or the enclosure, the following two
ways can be used to avoid the fan reversal or damage caused by strong wind blowing.
(1) Using the windshield
Wind deector
Fierce wind
(2) Near wall installation
More than 2000mm Fierce wind

7
• To ensure the e󰀩ciency, the pipe should be as short as possible.
• Daub the refrigerant oil on the connector and the are nut.
• When bending the pipe, the bending semi-diameter should be as large as possible against the pipe being broken or
bent.
• When connecting the pipe, aim at the center to thread the nut by hand and tighten it with the double spanners.
• Don't let the impurity such as sand, water etc into the pipe.
Pipe connection method:
When fastening and loosing the nut, operate with double
spanners, because only one spanner cannot execute rmly.
If threading the nut as not aiming at the center, the screw
thread will be damaged, further it will cause leakage.
Spanner
Connector
Nut
Spanner
Cautions in piping installation:
• When welding the connector with hard solder, charge nitrogen into the pipe against oxidation. Or the oxygen lm in the
pipe will clog the capillary and the expansion valve, even caue the deathy accident.
• The refrigerant pipe should be clean. If the water and the other impurity enter the pipe, charge the nitrogen to clean the
pipe. The nitrogen should ow under the pressure of about 0.5Mpa and when charging the nitrogen, stop up the end of
the pipe by hand to enhance the pressure in the pipe, then loose the hand (meanwhile stop up the other end).
• The piping installation should be executed after the stop valves are closed.
• Before welding the valve and the pipes, use the wet cloth to cool down the valve and the pipes.
• When the connection pipe and the branch pipe need to be cut down, please use the special shears and cannot use the
saw.
(5) Refrigerant pipe connection
Pipe material and specs selection
1. Please select the refrigerant pipe of the below material.
Material: the phosphoric oxidize seamless copper pipe, model: C1220T-1/2H (diameter is over 19.05); C1220T-0
(diameter is below 15.88).
2. Thickness and specs:
Conrm the pipe thickness and specs according to the pipe selection method(the unit is with R410A, if the pipe over
19.05 is 0-type, the pressure preservation will be bad, thus it must be 1/2H type and over the min. thickness.
3. The branch pipe must be from Haier.
4. When installing the stop valve, refer to the relative operation instruction.
5. The pipe installation should be in the allowable range.
6. The installation of branch pipe and gather pipe should be performed according to the relative manual.
Installation instruction
If the coating on the fastening area is stripped o󰀨, the nuts rust easily.
Dimensions (bottom view) (unit of measurement: mm)
175 600 175
405
130 661 154
402
AU032FSEUA AU052FPEUA
AU072FPEUA

8
Installation instruction
3. Pipe "c" diameter ( outdoor pipe diameter)
Note:
When the distance from outdoor to the longest indoor is over 30m, the main pipe should be the enlarged diameter.
Outdoor capacity
(100W) Gas pipe (mm) Liquid pipe (mm)
80 Ø15.88 Ø9.52
140 Ø19.05 Ø9.52
180 Ø19.05 Ø9.52
Note:
If the copper pipe with outer diameter 19.05 is coil pipe, the thickness should be over 1.1.
Copper pipe selection:
hardness softness Half-hardness
Outer diameter (mm) Ø6.35 Ø9.52 Ø12.7 Ø15.88 Ø19.05 Ø22.22 Ø25.24 Ø28.58
Min. thickness (mm) 0.8 0.8 1.0 1.0 1.0 1.1 1.2 1.4
Pipe specication:
a
a
a
a
b
b
c
1. Pipe "a" diameter (between indoor and branch pipe) (depends on indoor pipe)
Please refer to the indoor air conditioner manual.
2. Pipe "b" diameter (between branch pipes)
Total indoor capacity after the branch pipe (x100W) Gas pipe (mm) Liquid pipe (mm)
X<112 Ø15.88 Ø9.52
112≤X< 234 Ø19.05 Ø9.52
Drain pipe disposal
• Make sure the drain works properly.
• In regions where buildups of snow can be expected, the accumulation and freezing of snow in the space between the
heat exchanger and external plate may lower operating e󰀩ciency.
• After punching the knock-out hole, the application of repair-type paint on the surface around the edge sections is
recommended to prevent rust.

9
Piping connection method:
Pipes can be connected in four directions
A, B, C, D:Copper pipe hole
E:Power cord hole (with its own cable sheath)
F:Communication line hole
AB
C
D
E
F
Enlarged diagram
As shown in the gure, the piping can be connected from four
directions. Through the front / rear hole piping piping on the cover hole or crack directly across the oor.
From the outdoor machine unloading piping cover with a screwdriver and hammer knock o󰀨 holes along the guide wire
break. Then, trim the edges of the holes, and mounted on the insulating sleeve (site) to protect the piping and wiring.
liquid pipes
gas pipes
Installation instruction
Outdoor uint with single fan piping connection method
Outdoor uint with double fan piping connection method
gas pipes
liquid pipes
gas pipes
liquid pipes
Enlarged diagram

10
Installation instruction
Long pipe and high drop
1. Allowable pipe length and height di󰀨erence
Permissible value Piping part
Piping
length
Total length of piping (actual length) 80 120m L1+L2+L3+L4+a+b+c+d+e
140/180 150m
Longest piping L Actual / Equivalent length 60/70m L1+L2+L3+L4+e
Piping length of indoor unit which is furthest to the rst branch
piping L (*) 40m L2+L3+L4+e
Drop
height
Drop height between indoor and
outdoor unit H
Up outdoor 50m ——
Under outdoor 40m ——
Drop height between indoor units h 10m ——
Maximal length and drop height permissible of refrigerant piping
Drop height between indoor and outdoor units
Drop height between
indoor units
h≤10m
Length of the longest piping after the
rst branch piping L (*)
First branch piping
Outdoor unit
Indoor unit
Length of the longest piping L
A. Outdoor unit
Unit pipe spec and connection method (unit: mm)
Model
Gas pipe side Liquid pipe side
Diameter
(mm)
Connecting
method
Diameter
(mm)
Connecting
method
AU03 Ø15.88
Flared joint
Ø9.52
Flared jointAU05 Ø19.05 Ø9.52
AU07 Ø19.05 Ø9.52
B. Indoor unit
Please refer to the indoor air conditioner manul.
Connecting method: Flared joint
C. Pipe spec and the torque
Note: If the copper pipe with outer diameter 19.05 is coil
pipe, the thickness should be over 1.1.
Diameter (mm) Thickness (mm) Torque (N.m)
Ø6.35 0.8 16~20
Ø9.52 0.8 40~50
Ø12.7 1.0
Ø15.88 1.0 90~120
Ø19.05 1.0 100~140
Ø22.22 1.1 ——
Ø25.4 1.2 ——
Not less than Ø28.58 More than 1.4 ——
Branch pipe
Outdoor unit type
Branch pipe selection:
Total indoor capacity (100W) Model (optional)
Less than 335 FQG-B335A

11
Installation instruction
Note:
1. When connecting the pipe and the outdoor, please pay attention to the outdoor pipe dimension.
2. When adjusting the diameter among pipes and among the units, please must execute at the branch pipe side.
3. When welding with hard solder, please must blow nitrogen. If not, a number of oxide will be produced and cause heavy
damage.Besides,to prevent water and dust into the pipe, please make the brim as outer roll.
Adhesive side
Prepare on eld Seal the connection and wrap the
heat insulator with adhesive tape
Cut o󰀨 pipe with the cutter
Cut o󰀨 at the middle
• Gas pipe and liquid pipe should be heat insulated separately.
• The material for gas pipe should endure the high temperature
over 120°C.That for liquid pipe should be over 70°C.
• The material thickness should be over 10mm, when ambient
temp. is 30°C, and the relative humidity is over 80%, the material
thickness should be over 15mm.
• He material should cling the pipe closely without gap, then be
wrapped with adhesive tape. The connection wire can not be put
together with the heat insulation material and should be far at
least 20cm.
Heat insulation
• In operation, the pipe will vibrate and expand or shrink. If not being xed, the refrigerant will focus on one part to cause
the broken pipe.
• To prevent the central stress, x the pipe for every 2-3m.
Fix the refrigerant pipe
Connection wire
over 20cm
Adhesive tape
Gas pipe
Heat insulator
Liquid pipe
Pipe installation
When doing the piping connection, please do the following:
• Please don't let the pipe and the parts in the unit collide each other.
• When connecting the pipes, close the valves fully.
• Protect the pipe end against and water, impurities (welding after being atted, or being sealed with adhesive tape).
• Bend the pipe as large semi-diameter as possible(over 4 times of the pipe diameter).
• The connection between outdoor liquid pipe and the distributing pipe is ared type. Please expand the pipe with the
special tool for R410A after installing the expanding nut. But if the projecting pipe length has been adjusted with the
copper pipe gauge, you can use the original tool to expand the pipe.
• Since the unit is with R410A, the expanding oil is ester oil, not the mineral oil.
• When doing the are connection, please do the following: When connecting the expanding pipe, fasten the pipes with
double-spanner. The torque refers to the former info.
• The outdoor gas pipe and the refrigerant distributing pipe, as well the refrigerant distributing pipe and the branch pipe
should be welded with hard solder.
Pipe outer diameter
(mm) A
Ø6.35 9.1
Ø9.52 13.2
Ø12.7 16.6
Ø15.88 19.7
Expanding pipe: A(mm)
Pipe outer diameter
(mm)
When it is hard pipe
Special tool
for R410A
The former
tool
Ø6.35
0-0.5 1.0-1.5
Ø9.52
Ø12.7
Ø15.88
Projecting length of pipe to be expanded: B(mm)

12
Installation instruction
• Protect the pipe end against the water, impurity into the pipes
(welding after being at, or being sealed with adhesive tape).
• The refrigerant pipe should be clean. The nitrogen should ow under
the pressure of about 0.2Mpa and when charging the nitrogen, stop
up the end of the pipe by hand to enhance the pressure in the pipe,
then loose the hand (meanwhile stop up the other end).
• When connecting the pipes, close the valves fully.
• When welding the valve and the pipes, use the wet cloth to cool down the
valve and the pipes.
Seal the pipe end with
adhesive tape or the stopper
to increase the resistance, ll
up the pipe with nitrogen.
Only nitrogen gas
can be used
Brazing
<N2>
Taping
Adhesive tape
Flat
Brazing
1st side
Hand
2nd side
Source valve 0.2MPa
• Weld the pipe at the same time charge the nitrogen. Or it will cause a number
of impurity (a lm of oxidation) to clog the capillary and the expansion valve,
further cause the deadly failure.
1. The outdoor unit has been executed the leakage test in the factory. After connecting the distributing pipe, execute the
leakage test from the outdoor check valve and the indoor. Besides, while testing, the valves should be close.
2. Refer to the below gure to charge the nitrogen into the unit to take a test. Never use the chlorin, oxygen, ammable
gas in the leakage test. Apply pressure both on the gas pipe and the liquid pipe.
3. Apply the pressure step by step to the target pressure.
a. Apply the pressure to 0.5MPa for more than 5 minutes, conrm if pressure goes down.
b. Apply the pressure to 1.5MPa for more than 5 minutes, conrm if pressure goes down.
c. Apply the pressure to the target pressure (4.0MPa), record the temp. and the pressure.
d. Leave it at 4.0MPa for over 1 day, if pressure does not go down, the test is passed. Meanwhile, when the temp.
changes for 1degree, pressure will
change 0.01MPa as well. Correct the
p r e s s u r e .
e. After conrmation of a~d, if pressure
goes down, there is leakage. Check
the brazing position, ared position by
laying on the soap. modify the leakage
point and take another leakage test.
4. After leakage test, must execute the
evacuation.
Nitrogen Hi handle
Gauge manifold
Hi
To indoor
Check valve
Gas pipe
Gas pipe
Check hole
Outdoor
Lo
Lo handle
(6) Leakage test
Leakage test passed
Leave it for over 1
hour, vacuum pointer
does not arise.
After reaching -101KPa or
less (below -755mmHg), let
the vacuum pump running
continuously for over 1hour.
Charge refrigerant
Evacuation begins
Check vacuum
Evacuation ends
If vacuum pointer arises, it shows there is water or leakage in the
system, please check and modify it, and then evacuate again.
Evacute at the check valve of liquid stop valve and both sides of the gas stop valve.
Operation procedure:
(7) Evacuation

13
Installation instruction
Charge the additional refrigerant as liquid state with the gauge.
If the additional refrigerant can not be charged totally when the outdoor stops, charge it at the trial mode.
If the unit runs for a long period in the state of lack of refrigerant, compressor will occur failure.
(the charging must be nished within 30 minutes especially when the unit is running, menawhile charging the refrigerant).
A. Charging amount when out of factory excludes the refrigerant in the pipe.
B. The unit only is charged the standard volume of refrigerant (distributing pipe length is 0m). Additional charging
amount=actual length of liquid pipe x additional amount per meter liquid pipe
Additional charging amount=L1×0.35+L2×0.25+L3×0.17+L4×0.11+L5×0.054+L6×0.022
L1: total length of 22.22 liquid pipe; L2: total length of 19.05 liquid pipe; L3: total length of 15.88 liquid pipe;
L4: total length of 12.7 liquid pipe; L5: total length of 9.52 liquid pipe; L6:total length of 6.35 liquid pipe;
C. Refrigerant charging and additional charging
Note:
• To prevent the di󰀨erent oil into the pipe, please use the special tool for R410A, especially for gauge manifold and
charging hose.
• Mark the refrigerant type in di󰀨erent colour on the tank. R410A is pink.
• Must not use the charging cylinder, because the R410A will change when transferring to the cylinder.
• When charging refrigerant, the refrigerant should be taken out from the tank as liquid state.
• Mark the counted refrigerant volume due to the distributing pipe length on the label.
Tighten torque as the table below:
Tighten torque N.m
Shaft (valve body) Cap (cover) T-shape nut (check joint)
For gas pipe Less than 7 Less than 30 13
For liquid pipe 7.85 (MAX15.7) 29.4 (MAX39.2) 8.8 (MAX14.7)
Additonal refrigerant charging per meter(kg/m) Charge when out of factory
Ø22.22 Ø19.05 Ø15.88 Ø12.7 Ø9.52 Ø6.35
0.35 0.25 0.17 0.11 0.054 0.022 Refer to label
GWP: 2088
The product contains uorinated greenhouse gases and its functioning relies upon such gases.
(9) Additional refrigerant charging
• Start: press the main control board of the Start and Stop keys at the same time for 5 seconds, the machine enters
the refrigerant automatic recovery control: the compressor starts, the right side of the machine C0 and Ps digital tube
ashing, lasted for about 3 minutes.
• Operation: when the digital tube C1 and Ps alternately ashing, manually shut o󰀨 the liquid pipe valve, the refrigerant
recovery.
• O󰀨 valve: when Ps < 1kg, digital tube display C2, fast manual shut-o󰀨 valve, 5S after the system shut down.
• End: manual power down for program reset.
(10) Refrigerant recovery
Note: heating, standby or shutdown: outdoor machine forced to refrigeration operation.
Open/close method:
• Take down the valve cap.
• Turn the liquid stop valve and the gas stop valve with hexangular spanner until it stops. If opening the valve strongly,
the valve will be damaged.
• Tighten the valve cap.
(8) Check vale operation
Because the unit is with refrigerant R410A, the below issues should be paid attention:
• To prevent the di󰀨erent oil into the pipe, please use the special tool for R410A, especially for gauge manifold and
charging hose.
• To prevent the compressor oil into the refrigerant cycle, please use the anti-counter-ow adapter.

14
Electric wiring and the application
WARNING
• Switch o󰀨 the main power switch of the indoor
and outdoor machine for more than 1 minutes
before the wiring or regular inspection.
• To prevent the destruction of wires and
electrical components by rats or other animals.
Serious, it may lead to the occurrence of re.
• To avoid damage to the wire, avoid contact with
refrigerant pipes, steel edges and electrical
components. Serious, it may lead to the
occurrence of re.
CAUTION
• Secure the power cord with a wire tie in the
machine.
CAUTION
• In the case of 3 phase 5 wire type, the
power supply of the indoor machine must be
connected use L1 line and N line, prohibit the
use of L1-L2, L1-L3, Otherwise the electrical
part will be damaged.
Note:
when the wiring of the outdoor machine is not
using the wire, it should be xed with the rubber
ring.
Inspect
• To ensure that the electrical equipment used on the installation
site (main power switch, circuit breaker, wire, conduit and wiring
terminals, etc.) have been selected according to current data, to
ensure that the device in line with national standards.
• Check the power supply voltage in the range of 10% of the rated
voltage and the ground wire is included in the power supply line.
Otherwise, electrical parts will be damaged.
• Check whether the power supply is satised. Otherwise, the
compressor will not start when the voltage is too low.
• By measuring the insulation resistance between the ground
and the electrical device terminals, to ensure that more than 1
MΩ. Otherwise, the system can not be started until the cause of
leakage and maintenance.
Connection
• Connect the power cord to the terminal of the indoor unit and the
outdoor mechanical and electrical gas box, connect the ground
wire to the grounding bolt of the outdoor machine and the indoor
mechanical and electrical air box.
• Connect the external and internal communication lines to the
1 and the 2 terminals on the terminal. If the power cord is
connected, the printed circuit board will be damaged. And the use
of shielded twisted pair wire.
• Do not connect the fastening screws on the front of the cover.
• The power cord must be made of copper wire, and the power
supply must be in line with IEC 60245 requirements. If the power
cord length exceeds 20m, the need to increase the size.
• The power supply line is xed with a round connection terminal
with an insulating protective sleeve. Not with sheet metal contact
and extrusion, in order to avoid the cut line of skin caused by re.
Communication wiring gure
Outdoor Indoor 1
Indoor 3 Indoor 4 Indoor 5 Indoor 6
Indoor 2
Communication wire with polarity
wired
controller
P Q A B C P Q A B C
P Q A B C P Q A B C P Q A B C P Q A B C
A B C A B C
A B C
A B C
A B C
A B C
P Q
wired
controller
wired
controller
wired
controller
wired
controller
wired
controller
*

15
The outdoor and all indoor units are in parallel through 2 non-polar wires.
Three wiring methods between wired controller and indoor unit:
A. 1 to multi (group control): one wired controller controls 2~16 indoors, as shown in above gure, indoor 1~indoor 2:
indoor 2 is wired control master unit, the others are wired control slave units. Wired controller and the master indoor
(directly connected to wired controller) is connected by 3 polar wires; the other indoors and the master indoors are
connected by 2 or 3 polar wires, AC indoors wired "B" "C" polar wires, DC indoors wired "A" "B" "C" polar wires*.
B. 1 to 1 (one wired controller controls one indoor): as shown in above gure, indoor 3~ indoor 4, indoor and wired
controller are connected by 3 polar wires.
C. 2 to 1 (two wired controller controls one indoor): as shown in above gure, indoor 6. Either of wired controllers can be
set as master wired controller, and the other is slave wired controller. Master/slave wired controller, and master/indoor
are connected by 3 polar wires.
When indoor is controlled by remote controller, refer to the "wired control master unit/wired control slave unit/remote
control unit table".A, B, C on signal terminal block need not wires and not connect the wired controller.
Electric wiring and the application
Power wiring gure
Indoor and outdoor use their individual power source. All indoors use one power source. Must install the leakage breaker
and the over current breaker, or electric shock will occur.
power source: 1PH, 220-240V~, 50/60Hz
indoor 1
(wall mounted unit)
power source: 1PH, 220-240V~, 50/60Hz
indoor 2
(wall mounted unit)
power source: 1PH, 220-240V~, 50/60Hz
indoor 3
(non wall mounted unit)
power source: 1PH, 220-240V~, 50/60Hz
outdoor
Single-phase
Outdoor power source and power cable
Item
Model
Power
source
Power cable
section
(mm2)
Circuit
breaker
(A)
Rated current of residual
circuit breaker (A)
Ground fault interruptor (mA)
response time (S)
Ground wire
Section
(mm2)Screw
Individual
power
AU032FSEUA 1PH,
220-240V~,
50/60Hz
4 20 20A 30mA below 0.1S 4 M5
AU052FPEUA 10 40 40A 30mA below 0.1S 10 M5
AU072FPEUA 10 40 40A 30mA below 0.1S 10 M5
• Power cable must be xed rmly.
• To avide electrical shock, make sure to disconnect the power supply 1 minute or more before servicing the electrical
parts. Even after 1 minute,always measure the voltage at the terminals of main circuit capacitors or electrical parts and
before touching, make sure that those voltages are 50VDC or less.
• To persons in charge of electrical wiring work: Do not oerate the unit until the refrigerant piping is complete. (Running it
before the piping is ready will break the compressor)
• Each outdoor must be earthed well.

16
Electric wiring and the application
• When power cable exceeds the range, thichen it appropriately.
• The appliance shall be installed in accordance with national wiring regulations.
• All wiring must be performed by an authorized electrician.
• Be sure to install an earth leakage circuit breaker in accordance with applicable legislation.Failure to do so many cause
electrical shock.
Indoor power source and communication wiring
Item
Indoor
total
current (A)
Power cable
section
(mm2)
Wire length
(m)
Rated current
of overcurrent
breaker
(A)
Rated current of residual
circuit breaker(A)
Ground fault interruptor(mA)
response time(S)
Communication wire section
Outdoor/indoor
(mm2)
Indoor/indoor
(mm2)
<10 2 23 20 20A, 30mA, below 0.1s
2-core × (0.75-2.0mm2)
shielded wire
≥10 and <15 3.5 24 30 30A, 30mA, below 0.1s
≥15 and <22 5.5 27 40 40A, 30mA, below 0.1s
≥22 and <27 10 42 50 50A, 30mA, below 0.1s
• Power cable and communication wire must be xed rmly.
• Each indoor must be grounded well.
• When power cable exceeds the range, increase the gauge appropriately.
• Shielded layer of communication wires must be connected together and be earthed at single point.
• The total length of communication wire cannot exceed 1000m.
PROHIBIT
• Power lines shall not use other wires other than copper wire.
• All internal and external machines must be connected to the ground of the power supply. The earthing wire shall not be
connected to the ground wire of the gas pipe, water pipe, lightning rod or telephone. If the grounding is not appropriate,
may cause electric shock or re.
• Power supply must be installed leakage circuit breaker, otherwise, may cause electric shock or re.
• The operation and maintenance of electrical equipment shall be carried out under the condition that the power supply
is cut o󰀨.
• The indoor and outdoor units set their own independent power supply.
• The signal line and the power line must be independent, non electric signal line access.
Communication wire for wired controller
• The shielding lay of the signal line must be grounded at one end.
• The total length of the signal line shall not be more than 250m.
Length of Signal Line (m) Wiring Dimensions
≤250 0.75mm2 × 3 core shielding line

17
Outdoor unit electrical wiring diagram
Electric wiring and the application
Ground wire
Power cord
Communication line
Fixing the power line and communication
line with a wire clip on the partition board
Power lines and communication
lines need to be ame retardant
and high temperature resistant
wire wrap
With plastic pipe insulation
on the refrigerant pipe
Protection of power line
and communication line
hole with wire sheath
Power line machinery and piping
need to be wrapped with ame
retardant tape
When using a single terminal without terminal, the terminal can
not be directly used without ux. Otherwise, it will cause abnormal
heating of terminal crimping part. If a single core wiring is used in
the wiring, it can be connected directly in the manner shown in the
diagram.
ErrorCorrect
Cable sheath
Communication
line
Power cord
Communication line
Ground wire
Power cord
Power lines and
communication lines need to
be ame retardant and high
temperature resistant wire
wrap
Outdoor uint with single fan electrical wiring diagram
Outdoor uint with double fan electrical wiring diagram

18
BM1_1 Indoor searching after startup 0Begin to search indoor
1Stop searching indoor and lock the quantity
Outdoor unit PCB dipswitch setting, attention the di󰀨erent PCB version.
In the following table, 1 is ON, 0 is OFF.
BM1 introduction
Note:
Either indoor unit unlocked or the locked quantity di󰀨erent with actual connecting number, it cannot run.
Installation and debugging