Alpic Air ACMI-22VRDC1D User manual

Owner's Manual
Original Instructions
Commercial Air Conditioners
Multi Variable Air Conditioners
Cassette Type Indoor Unit
Models:
ACMI-22VRDC1D ACMI-28VRDC1D
ACMI-36VRDC1D ACMI-45VRDC1D
ACMI-50VRDC1D ACMI-56VRDC1D
ACMI-63VRDC1D ACMI-71VRDC1D
ACMI-80VRDC1D ACMI-90VRDC1D
ACMI-100VRDC1D ACMI-112VRDC1D
ACMI-125VRDC1D ACMI-140VRDC1D
ACMI-160VRDC1D

To Users
Thank you for selecting our product. Please read this instruction manual carefully before
installing and using the product, so as to master and correctly use the product. In order to guide you
to correctly install and use our product and achieve expected operating effect, we hereby instruct as
below:
(1) 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 responsibility
for their safety. Children should be supervised to ensure that they do not play with the
appliance.
(2) In order to ensure reliability of product, the product may consume some power under
stand-by status for maintaining normal communication of system and preheating refrigerant
and lubricant. If the product is not to be used for long, cut off the power supply; please
energize and preheat the unit in advance before reusing it.
(3) Please properly select the model according to actual using environment, otherwise it may
impact the using convenience.
(4) This product has gone through strict inspection and operational test before leaving the
factory. In order to avoid damage due to improper disassembly and inspection, which may
impact the normal operation of unit, please do not disassemble the unit by yourself. You can
contact with the special maintenance center of our company if necessary.
(5) When the product is faulted and cannot be operated, please contact with our maintenance
center as soon as possible by providing the following information.
1)Contents of nameplate of product (model, cooling/heating capacity, product No.,
ex-factory date).
2)Malfunction status (specify the situations before and after the error occurs).
(6) All the illustrations and information in the instruction manual are only for reference. In order
to make the product better, we will continuously conduct improvement and innovation. We
have the right to make necessary revision to the product from time to time due to the reason
of sales or production, and reserve the right to revise the contents without further notice.
(7) The final right to interpret for this instruction manual belongs to AlpicAir.

Exception Clauses
Manufacturer will bear no responsibilities when personal injury or property loss is caused by the
following reasons:
(1) Damage the product due to improper use or misuse of the product;
(2) Alter, change, maintain or use the product with other equipment without abiding by the
instruction manual of manufacturer;
(3) After verification, the defect of product is directly caused by corrosive gas;
(4) After verification, defects are due to improper operation during transportation of product;
(5) Operate, repair, maintain the unit without abiding by instruction manual or related
regulations;
(6) After verification, the problem or dispute is caused by the quality specification or
performance of parts and components that produced by other manufacturers;
(7) The damage is caused by natural calamities, bad using environment or force majeure.

Contents
1 Safety Notices (Please be Sure to Abide) ................................................................ 1
2 Product Introduction ................................................................................................. 4
2.1 Names of Key Components.................................................................................................4
2.2 Rated Working Condition.....................................................................................................4
3 Preparations for Installation ..................................................................................... 4
3.1 Standard Fittings..................................................................................................................4
3.2 Installation Position Selection..............................................................................................5
3.3 Requirements of Communication Wire Selection ................................................................6
3.4 Wiring Requirement.............................................................................................................7
4 Installation Instructions ............................................................................................ 8
4.1 Indoor Unit Installation.........................................................................................................8
4.2 Refrigerant Pipe Connection .............................................................................................10
4.3 Drainage Pipe Installation and Drainage System Testing..................................................10
4.4 Panel Installation ...............................................................................................................13
4.5 Wired Controller Installation ..............................................................................................15
5 Wiring Work.............................................................................................................. 15
5.1 Connection of Wire and Patch Board Terminal..................................................................16
5.2 Power Cord Connection ....................................................................................................16
5.3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or Indoor Unit)
.................................................................................................................................................17
5.4 Connection of Communication Wire for Wired Controller..................................................18
5.5 Instructions on Connecting Wired Controller and Indoor Units Network ...........................19
6 Routine Maintenance............................................................................................... 19
6.1 Cleaning of Filter ...............................................................................................................20
6.2 Maintenance before the Seasonal Use .............................................................................20
6.3 Maintenance after the Seasonal Use ................................................................................20
7 Table of Error Codes for Indoor Unit...................................................................... 20
8 Troubleshooting....................................................................................................... 21

Multi Variable Air Conditioners Cassette Type Indoor Unit
1
1 Safety Notices (Please be Sure to Abide)
WARNING: If not abide strictly, it may cause severe damage to the unit or the people.
NOTE: If not abide strictly, it may cause slight or medium damage to the unit or the people.
This sign indicates that the operation must be prohibited. Improper operation may cause
severe damage or death to people.
This sign indicates that the items must be observed. Improper operation may cause damage
to people or property.
WARNING!
This product can’t be installed at corrosive, inflammable or explosive environment or the
place with special requirements, such as kitchen. Otherwise, it will affect the normal operation
or shorten the service life of the unit, or even cause fire hazard or serious injury. As for above
special places, please adopt special air conditioner with anti-corrosive or anti-explosion
function.
This Multi VRF System shall only be connected to an appliance suitable for the same
refrigerant.
All units in Manual Cover is a partial unit, complying with partial unit of IEC
60335-2-40:2018, and must only be connected to other units that have been confirmed as
complying to corresponding partial unit requirements of this international standard.
The electrical interface shall comply with electrical security requirement, current shall be
referred to the table of “Dimension of power cord and capacity of air switch” in Section 3.4,
and safety class of construction isⅠ.
Please install the unit
according to instructions in this
manual. Read this manual
carefully before starting up or
checking the machine.
Installation should be
performed by dealer or
qualified technicians. Do not
install the product by yourself.
Improper installation may
result in water leakage, electric
shock or fire hazard.
Make sure the local power
supply is in accordance with
units before installation, and
check the power supply
carefully.
This air conditioner must be
properly grounded through the
receptacle to avoid electric
shock. The grounding wire
shouldn't be connected with
gas pipe, water pipe, lightning
arrester or telephone line.
Please use specialized
accessories or parts to carry
out installation, or water
leakage, electric shock, fire
hazard may resulted.
R410A refrigerant can produce
poisonous gas once it meets
fire, so please ventilate the
room immediately if refrigerant
leaks out during installation.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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Diameter of power cord must
be large enough. Damaged
power cord and connecting
wire must be replaced by
specialized electric cable.
After the power cord is
connected, please install the
cover of electric box to avoid
danger.
Nitrogen must be charged
according to technical
requirements.
Short circuit is forbidden. Do
not cancel the pressure switch
in case the unit may be
damaged.
For units with wired controller,
do not connect power supply
until the wired controller is well
installed. Otherwise, the wired
controller cannot be used.
When the installation is
finished, please check and
make sure the drain pipe,
pipeline and electric wire are
all well connected in order to
avoid water leakage,
refrigerant leakage, electric
shock or fire hazard.
Do not extend fingers or
objects into air outlet or air
return grille.
If you use gas heater or
petroleum heater in the same
room, please open the door or
window to maintain good air
circulation in case the room
may lack of oxygen.
Never start or stop the air
conditioner by inserting or
removing the power cord.
Do not turn off the air
conditioner until it runs for at
least 5 minutes. Otherwise,
oil-return of the compressor
will be affected.
Children are not allowed to
operate the air conditioner.
Do not operate the air
conditioner with wet hands.
Please turn the unit off and
unplug your air conditioner
before cleaning. Otherwise, it
may cause electric shock or
personal injury.
Do not spray water on the air
conditioner or it will cause
malfunction or electric shock.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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Do not expose the air
conditioner directly to water or
place it in a damp or corrosive
environment.
Connect power supply 8 hours
before operation. Do not
disconnect power if you want
to stop the unit in a short
period of time, e.g. in one night
(This is for protecting the
compressor).
Volatile liquid like thinner or
gasoline will damage the
appearance of air conditioner
Please use soft dry cloth or wet
cloth with mild detergent to
clean the outer case of air
conditioner.
During Cooling mode, indoor
temperature should not be set
too low. Keep the difference
between indoor temp and
outdoor temp within 5℃.
If abnormal condition occurs
(e.g. unpleasant smell), please
turn off the unit at once and
disconnect power supply. Then
contact our service center.
If the air conditioner continues
to operate despite of abnormal
condition, the unit may be
damaged and it may cause
electric shock or fire hazard.)
Do not repair the air
conditioner by yourself.
Improper repair will cause
electric shock or fire hazard.
Please contact our service
center and have it repaired by
professional technicians.
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.
Install units according to national wiring codes.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified
person in order to avoid a hazard.
An all-pole disconnection device which has at least 3mm clearances in all poles, and disconnection must be
incorporated in the fixed wiring in accordance with the wiring rules.
AlpicAir will not assume responsibility for any personal injury or property loss
caused by improper installation, improper debugging, unnecessary repair or not following the instructions of this
manual.
Any personal injury or property loss caused by improper installation, improper debug,
unnecessary repair or not following the instructions of this manual should not be the responsibility of
AlpicAir.
Correct Disposal of this product
This marking indicates that this product should not be disposed with other
household wastes throughout the EU. To prevent possible harm to the
environment or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material resources. To return your
used device, please use the return and collection systems or contact the retailer
where the product was purchased. They can take this product for environmental
safe recycling.

Multi Variable Air Conditioners Cassette Type Indoor Unit
4
2 Product Introduction
2.1 Names of Key Components
Fig.2.1
2.2 Rated Working Condition
-
Indoor Side Condition
Outdoor Side Condition
Dry Bulb Temp℃Wet Bulb Temp℃Dry Bulb Temp℃Wet Bulb Temp℃
Rated Cooling
27
19
35
24
Rated Heating
20
15
7
6
3 Preparations for Installation
NOTE! This picture is for reference only, please refer to the actual product; the unit of dimension
is mm.
3.1 Standard Fittings
Use the following provided accessories according to the requirement.
No.
Name
Appearance
Q'ty
Usage
1 Wireless controller 1 To control the indoor unit.
2 Paper pattern for
installation
1 Locate the drill hole on ceiling.
3 Tapping screw with washer 4 Fix paper pattern.
4 Washer fixing plate 4 Prevent the washer from falling off.
5
Drain Hose Assembly
1
To connect with the hard PVC drain pipe.
6 Special Nut
2 ACMI-22~50VRDC1D
1 ACMI-56~160VRDC1D
7
Corrugated pipe
1
ACMI-56~160VRDC1D
8 M10 Washer 10 To be used together with the hanger bolt for
installing the unit.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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No.
Name
Appearance
Q'ty
Usage
9 Insulation 2 To i nsulate the gas/ liquid pipe
10 Sponge 4 To insulate the drain pipe.
11
Fastener
4
To fasten the sponge.
3.2 Installation Position Selection
(1) The appliance shall not be installed in the laundry.
(2) The location should be able to withstand the weight of unit.
(3) The water can be drained conveniently from drainage pipe.
(4) There should be no obstruction near air inlet and air outlet.
(5) Follow the installation distance required in the fig below to ensure sufficient space for
maintenance.
(6) The installation location should be far from heat sources, flammable or explosive gas, or
smog spread in the air.
(7) The indoor unit, outdoor unit, power cord and connection electricity wire should be at least
1m from television and radio in order to prevent interference and noise (Even though 1m
distance is ensure, there may be noise if the electric wave is too strong).
Unit: mm
Fig.3.2
Model
H(mm)
ACMI-22~100VRDC1D
275
ACMI-112~160VRDC1D
325
NOTES!
①The unit shall be installed in accordance with national standards or local regulations.
②Only qualified personnel can carry out installation work, please contact with local dealer
before installation.
③Make sure all the installation work completed before energizing.
④The appliances are not accessible to general public.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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3.3 Requirements of Communication Wire Selection
NOTE!
If air conditioner used under strong electronic-magnetic interference circumstance, STP
(shielded twisted pair) communication cable must be adopted.
3.3.1 Selection of communication wire between indoor unit and wired controller
Fig.3.3.1
Wire type
Total length of
communication wire between
indoor unit and wired
controller (m)
Wire diameter
(mm²) Wire standard Remark
Light/normal PVC
hose L≤250 2×0.75
~2×1.25
IEC
60227-5
1. Total length of communication
line can't exceed 250m.
2. The cord shall be Circular cord
(the cores shall be twisted
together).
3. If unit is installed in places with
intense magnetic field or strong
interference, it is necessary to
use shielded wire.
3.3.2 Selection of Communication Wire between Indoor Unit and Indoor Unit (or outdoor
unit)
Fig.3.3.2

Multi Variable Air Conditioners Cassette Type Indoor Unit
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Wire type
Total length of communication
wire between indoor unit and
indoor unit(outdoor unit) (m)
Wire diameter
(mm²)
Wire
standard Remark
Light/normal PVC
hose L≤1000 ≥2×0.75 IEC
60227-5
1. If the wire diameter is enlarged to
2×1mm², the total communication
length line can reach 1500m.
2. The cord shall be Circular cord (the
cores shall be twisted together).
3. If unit is installed in places with
intense magnetic field or strong
interference, it is necessary to use
shielded wire.
3.4 Wiring Requirement
Dimension of power cord and capacity of air switch.
Model Power Cord Size Air Switch Capacity
(A)
Minimum Sectional
Area of Ground Wire
(mm²)
Minimum Sectional
Area of Power Cord
(mm²)
ACMI-22VRDC1D
220-240V-1ph-50Hz
208-230V-1ph-60Hz
6
1.0
1.0
ACMI-28VRDC1D
6
1.0
1.0
ACMI-36VRDC1D
6
1.0
1.0
ACMI-45VRDC1D
6
1.0
1.0
ACMI-50VRDC1D
6
1.0
1.0
ACMI-56VRDC1D 6 1.0 1.0
ACMI-63VRDC1D
6
1.0
1.0
ACMI-71VRDC1D
6
1.0
1.0
ACMI-80VRDC1D
6
1.0
1.0
ACMI-90VRDC1D
6
1.0
1.0
ACMI-100VRDC1D
6
1.0
1.0
ACMI-112VRDC1D
6
1.0
1.0
ACMI-125VRDC1D
6
1.0
1.0
ACMI-140VRDC1D
6
1.0
1.0
ACMI-160VRDC1D
6
1.0
1.0
NOTES!
①An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in fixed wiring.
②The circuit breaker and power cord specification in above sheet is based on max power
(max current) of the unit.
③The power cord specification in above sheet is based on ambient temperature of 40℃.
④If the supply cord is damaged, it must be replaced by the manufacturer or its service agent
or a similarly qualified person in order to avoid a hazard.
⑤The circuit breaker specification in above sheet is based on ambient temperature of 40℃. If
the working condition is different, please adjust it according to the specification sheet of
circuit breaker.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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4 Installation Instructions
4.1 Indoor Unit Installation
4.1.1 Ceiling Opening Dimension and Suspension Bolt Position.
Fig.4.1.1
Unit: mm
Model A B C D E
ACMI-22~160VRDC1D
950
890
840
680
780
4.1.2 Suspend the Indoor Unit
(1) Drill bolt holes and install bolts.
1)Stick the reference cardboard on the installation position; drill 4 holes according to the
hole site on the cardboard as shown in Fig.4.1.2; diameter of drilling hole is according to
the diameter of expansion bolt and the depth is 60-70mm, as shown in Fig.4.1.3.
Unit:mm
Fig.4.1.2 Fig.4.1.3
2)Insert the M10 expansion bolt into the hole and then knock the nail into the bolt, as shown
in Fig.4.1.4.
NOTE! The length of bolt depends on the installation height of the unit, bolts are field supplied.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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Fig.4.1.4
(2) Install the indoor unit temporarily.
Assemble suspension bolt on the expansion bolt, attach the hanger bracket to the suspension
bolt. Be sure to fix it securely by using a nut and washer from upper and lower sides of the hanger
bracket. The washer fixing plate will prevent the washer from falling.
(3) The usage of paper pattern.
Refer to paper pattern of installation for ceiling opening dimension. The center of ceiling opening
is indicated on the paper pattern. Fix the paper pattern to the unit with 4 screws and fix the corners of
the waterspout at the drainage pipe by screws.
(4) Adjust the unit to the right position.
(5) Check the level of the unit.
The indoor unit is equipped with build-in water pump and float switch, verify the levelness of 4
directions by level gauge or vinyl tube (filled with water) respectively.
(6) Remove the washer locating plate and then tighten the nut on it.
(7) Remove the paper pattern.
Fig.4.1.5
Fig.4.1.6

Multi Variable Air Conditioners Cassette Type Indoor Unit
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4.2 Refrigerant Pipe Connection
(1) Aim the flaring port of copper pipe at the center of screwed joint and then tighten the flaring
nut with hand as shown in Fig.4.2.
(2) Tighten the flaring nut with torque wrench.
Fig.4.2
Torque for tightening nut
Pipe diameter (mm) Torque (N·m)
Φ6.35
15~30
Φ9.52
35~40
Φ12.7 45~50
Φ15.9
60~65
Φ19.05
70~75
(3) Use pipe bend when bending the pipe and the bending angle should not be too small.
(4) Wrap the connection pipe and joint with sponge and then tie them firmly with tape.
4.3 Drainage Pipe Installation and Drainage System Testing
4.3.1 Notice for Installation of Drain Pipe
(1) It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines
which are likely to produce corrosive or peculiar smell to prevent the smell from entering
indoors or corrupt the unit.
(2) It is not allowed to connect the condensate drain pipe into rain pipe to prevent rain water
from pouring in and cause property loss or personal injury.
(3) Condensate drain pipe should be connected into special drain system for air conditioner.
(4) The drainage pipe should be short and the gradient downwards should be at least 1%~2% in
order to drain condensation water smoothly.
(5) The diameter of drainage hose should be bigger or equal to the diameter of drainage pipe
joint.
(6) Install drainage pipe according to the following fig and arrange insulation to the drainage
pipe. Improper installation may lead to water leakage and damp the furniture and other
things in the room.
(7) You can buy normal hard PVC pipe used as the drainage pipe. During connection, insert the
end of PVC pipe into the drainage hole and then tighten it with drainage hole and wire binder.
Can’t connect the drainage hole and drainage hole with glue.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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(8) When the drainage pipelines are used for several units, the position of pipeline should be
about 100mm lower than the drainage port of each unit. In this case, thicker pipes should be
applied.
Fig.4.3.1
4.3.2 Drainage Pipe Installation
(1) Drainage pipe should have the same diameter or larger diameter than the connecting pipes
(PVC pipe, outside diameter 25mm, thickness≥1.5mm).
(2) Keep drainage pipe short and sloping downwards at a gradient of at least 1% for preventing
forming air bubbles.
(3) If the gradient of drainage pipe could not meet the installation requirements, raising pipe
should be applied.
(4) Insert the drainage hose into drain socket, tighten the metal clamp securely.
(5) Warp the sealing pad over drain hose and metal clamp for heat insulation.
(6) Make sure to perform insulation work for all drainage piping in order to prevent any possible
water drop due to dew condensation.
(7) Apply the suitable diameter for converging drainage pipe according to the operating capacity
of the unit.
Unit:mm
Fig.4.3.2
(8) The installation height of raising pipe for drainage should be lower than B. The gradient from
raising pipe towards drainage direction should be at least 1%~2%. If the raising pipe is
vertical with the unit, the raising height should be less than C, as shown in Fig. 4.3.3.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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Unit:mm
Fig.4.3.3
Unit:mm
Model
A
B
C
ACMI-22~160VRDC1D 220 980 930
(9) Drain pipes should have a downward slope of at least 1%~2%, in order to prevent pipes
from sagging, install hanger bracket at intervals of 1000~1500mm.
Unit:mm
Fig. 4.3.4
(10) During the installation, distance from soft drain pipe to the gasket is C mm when the bolt is
tightened. It is not allowed to apply PVC or other related glue in the joints of two ends of
drain pipe.
Fig.4.3.5
Unit:mm
Model
C
ACMI-22~160VRDC1D
15±3

Multi Variable Air Conditioners Cassette Type Indoor Unit
13
4.3.3 Test of Drainage System
(1) Please test drainage system after electric work is finished.
Inject approximately 1L purified water to drain pan from air vent, ensure that not to splash the
water over the electrical components (e.g. water pump. etc.).
1)In case of commissioning finished, please energize the IDUs and switch to cooling or dry
mode, meanwhile, the water pump operates, you can check the draining through the
transparent part of drain socket.
2)If communication wire is not connected, communication malfunction “C0” will occur after
60s of energizing. In this case, the water pump operates automatically. Check if the water
pump drains normally drains normally through drainage port. The water pump will stop
automatically after running for 10min.
(2) During the test, please carefully check the drainage joint, make sure no any leakage occur.
(3) It’s strongly recommend to do the drain test before ceiling decoration.
Unit:mm
Fig.4.3.6
4.4 Panel Installation
4.4.1 Notices for Installation
(1) Improper decorative panel installation could cause the following problems.
Fig.4.4.1
(2) Ensure that its clearance-free between decoration panel and ceiling board after installation,
if not, please adjust the body position.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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Fig.4.4.2
(3) Connect the decoration panel terminals (Female) to body terminals (male) as shown in
Fig.4.4.3.
Fig.4.4.3
4.4.2 Panel Installation
(1) Detach the panel’s Corner Cap, there is a mark “piping side” on one of the 4 corners, adjust
the panel direction so as to keep the mark and fittings on the same corner.
(2) Temporality hang the panel to body (there is four hangers on each corner of the panel, hang
the hangers to corresponding hooks on the body), as shown in Fig.4.4.4.
(3) Detach the air inlet grille from panel, make a wiring connection of signal receiver. Notices
that the connection wire not stuck in the middle of body and panel, or may cause air leakage
and lead to condensation water drop.
(4) Tighten 4 screws at each corner of panel respectively, fix the panel on the body firmly.
(5) After tightening screws, reinstall the air inlet grille.

Multi Variable Air Conditioners Cassette Type Indoor Unit
15
Fig.4.4.4
4.5 Wired Controller Installation
Wired controller is optional accessory. If wired controller is needed, please contact your local
dealer and install the wired controller according to the instruction manual.
NOTE!
Do perform the commissioning operation before first use, automatic addressing or other settings,
please refer to the manual of ODU.
5 Wiring Work
WARNING!
Before obtaining access to terminals, all supply circuits must be disconnected.
NOTES!
①Units must be earthed securely, or it may cause electric shock.
②Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring
could cause malfunction or even damage the unit.
③The unit should be powered by independent circuit and specific socket.
④The wiring should be in accordance with related regulations in order to ensure the units
reliable running.
⑤Install circuit breaker for branch circuit according to related regulations and electrical
standards.
⑥Keep cable away from refrigerant pipings, compressor and fan motor.
⑦The communication wires should be separated from power cord and connection wire
between indoor unit and outdoor unit.
⑧Adjust the static pressure via wired controller according to site circumstance.

Multi Variable Air Conditioners Cassette Type Indoor Unit
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5.1 Connection of Wire and Patch Board Terminal
(1) The connection of wire (as shown in Fig.5.1.1).
1)Strip about 25mm insulation of the wire end by stripping and cutting tool.
2)Remove the wiring screws on the terminal board.
3)Shape the tail of wire into ring by needle nose plier, and keep the gauge of ring in
accordance with screw.
4)Use the screwdriver for tightening the terminal.
(2) The connection of stranded wire (as shown in Fig.5.1.2).
1)Strip about 10mm insulation of the end of stranded wire by stripping and cutting tool.
2)Loosen the wiring screws on terminal board.
3)Insert the wire into the ring tongue terminal and tighten by crimping tool.
4)Use the screwdriver for tightening the terminal.
Unit:mm
Fig.5.1.1 Fig.5.1.2
5.2 Power Cord Connection
NOTES!
①Every unit should be equipped with a circuit breaker for short-circuit and overload protection.
②During operation, all indoor units connected to the same outdoor unit system must be kept
energized status. Otherwise, the unit can’t operate normally.