Alpic Air AFMI-36VRDC1A User manual

Models:
AFMI-36VRDC1A
AFMI-112VRDC1A
AFMI-50VRDC1A
AFMI-125VRDC1A
AFMI-63VRDC1A
AFMI-140VRDC1A
AFMI-71VRDC1A
 Thank you for choosing Air Conditioners, please read this owner’s manual carefully before
operation and retain it for future reference.
Owner's Manual
Air Conditioners
Multi Variable Air Conditioners
Floor and Ceiling Type Indoor Unit

To Users
Thank you for selecting AlpicAir 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 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.
(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 damagedue 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) For personal injury or property loss and damage caused by improper operation such as
improper installation and debugging, unnecessary maintenance, violation of related
national laws and rules and industrial standard, and violation of this instruction manual,
etc., we will bear no liability.
(6) When the product is faulted and cannot be operated,please contact with ourmaintenance
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).
(7) 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.

Contents
1 Safety Precautions .................................................................................................. 1
2 Product Introduction ................................................................................................ 3
2.1 Names of Key Components ......................................................................................... 3
2.2 Rated Working Condition ............................................................................................. 3
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 ............................................11
4.4 Wired Controller Installation ........................................................................................14
5 Wiring Work........................................................................................................... 15
5.1 Connection of Wire and Patch Board Terminal............................................................15
5.2 Power Cord Connection..............................................................................................16
5.3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or Indoor
Unit)..................................................................................................................................16
5.4 Connection of Communication Wire for Wired Controller.............................................17
5.5 Wiring Instructions of Wired Controller and Indoor Units Network ...............................18
6 Routine Maintenance............................................................................................. 19
6.1 Cleaning of Filter.........................................................................................................19
6.2 Maintenance before the Seasonal Use........................................................................19
6.3 Maintenance after the Seasonal Use ..........................................................................19
7 Table of Error Codes for Indoor Unit...................................................................... 20
8 Troubleshooting..................................................................................................... 21

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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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.
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.
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.

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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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.
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 and
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°C.
If abnormal condition occurs
(e.g. unpleasant smell), please
turn off the unit at once and
disconnect power supply. Then
contact AlpicAir service center.
If the air conditioner con tinues 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 AlpicAir
service center and have it
repaired by professional
technicians.

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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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.
2 Product Introduction
2.1 Names of Key Components
Fig.2.1
No.
①
②
③
④
⑤
⑥
Name
Drainage
Pipe
Connection
Pipe
Air Inlet
Grille (With
Filter)
Louver
Main Unit
Display
board
2.2 Rated Working Condition
Test condition
Indoor Side Condition
Outdoor Side Condition
Dry Bulb Temp℃(℉)
Wet Bulb Temp℃(℉)
Dry Bulb Temp℃(℉)
Wet Bulb Temp℃(℉)
Rated Cooling
27(80.6)
19(66.2)
35(95)
24(75.2)
Rated Heating
20(68.0)
15(59.0)
7(44.6)
6(42.8)

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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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
Remote controller
1+2
To control the indoor unit
2
Special hut
1
To connect gas pipe
3
Special hut
1
To connect liquid pipe
4
M10X8 nut with
washer
8
To be used together with the
suspension bolt for installing the unit.
5
Insulation
1
To insulate the gas pipe
6
Insulation
1
To insulate the liquid pipe
7
Paper pattern for
installation
1
Locate the drill hole on ceiling or wall
8
Fastener
4
To fasten the sponge

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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3.2 Installation Position Selection
(1) The location should be able to withstand the weight of unit.
(2) The water can be drained conveniently from drainage pipe.
(3) There should be no obstruction near air inlet and air outlet.
(4) Follow the installation distance required in the fig below to ensure sufficient space for
maintenance.
(5) The installation location should be far from heat sources, flammable or explosive gas, or
smog spread in the air.
(6) 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 ensured, there may be noise if the electric wave is too strong.)
Floor type
Ceiling type
Fig.3.2
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.

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3.3 Requirements of Communication Wire Selection
Caution:
If air conditioner used under strong electronic-magnetic interference circumstance, STP
(shielded twisted pair) communication cable must be adopted.
3.3.1 Select Communication Line for Indoor Unit and Wired Controller
Fig 3.3.1
Material type
Total length of
communication
line between
indoor unit and
wired controller L
(m/feet)
Wire size
(mm2/AWG)
Material
Standard
Remarks
Light/Ordinary
polyvinyl
chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤250m
(L≤820-1/5feet)
2×0.75~2×1.2
5
(2×AWG18~2×
AWG16)
IEC
60227-5
1. Total length of communication
line can't exceed 250m (820-
1/5feet).
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 Select Communication Line for Indoor Unit and Outdoor Unit
Fig 3.3.2

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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Material Type
Total Length L
(m/feet) of
Communication
Cable between
Indoor Unit and
Indoor (Outdoor)
Unit
Wire size
(mm2/AWG)
Material
Standard
Remarks
Light/Ordinary
polyvinyl
chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤1000m
(L≤3280-5/6feet) ≥2×0.75
(≥2×AWG18)
IEC 60227-5
1. If the wire diameter is enlarged to
2×1 mm2(2×AWG16), the total
communication line length can reach
1500 m (4921-1/4feet).
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
Notes:
①The circuit breaker and power cord specification in above sheet are based on max power
(max current) of the unit.
②The power cord specification in above sheet is based on ambient temperature of 40°C.
③The circuit breaker specification in above sheet is based on ambient temperature of 40°C.
If the working condition is different, please adjust it according to the specification sheet of circuit
breaker.
Dimension of power cord and capacity of air switch:
Models
Power specification
Air Switch
Capacity (A)
Minimum Sectional
Area of Grounding
Wire（mm2）
Minimum Sectional
Area of Power
Cord (mm2)
AFMI-36VRDC1A
220~240V-1ph-50Hz
208~230V-1ph-60Hz
6
1
1
AFMI-50VRDC1A
6
1
1
AFMI-63VRDC1A
6
1
1
AFMI-71VRDC1A
6
1
1
AFMI-112VRDC1A
6
1
1
AFMI-125VRDC1A
6
1
1
AFMI-140VRDC1A
6
1
1

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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4 Installation Instructions
4.1 Indoor Unit Installation
4.1.1 Indoor Unit Dimension and Suspension Bolt Position
Below are dimensions of A, B, C, etc. for different models: Unit: mm
Models
A
(mm) B (mm) C (mm) D (mm) H (mm)
Drainage
pipe(Outer
Diameter ×wall
thickness)
(mm)
Outer diameter of
connection pipe(mm)
Liquid pipe
Gas pipe
1220
225
1158
280
700
Ф17×1.75
AFMI-36VRDC1A
AFMI-50VRDC1A
6.35
12.7
AFMI-63VRDC1A
AFMI-71VRDC1A
1420
245
1354
280
700
9.52
15.9
AFMI-112VRDC1A
AFMI-125VRDC1A
AFMI-140VRDC1A
1700
245
1634
280
700
9.52
15.9
Important: The drilling work must be carried out by qualified personnel.

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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4.1.2 Suspend the Indoor Unit
(1) Determine the location of the hanger through the paper template, and then remove the
paper template, as shown in Fig 4.1.2.1 left.
Fig.4.1.2.1
(2) Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor
bolts with a hammer, as shown in Fig 4.1.2.1 right.
(3) Remove the right and left side panels, as shown in Fig 4.1.2.2.
(4) Put the hanger bolt into the clasp of the indoor unit and tighten screws on the hanger to
prevent the indoor unit from moving, as shown in Fig 4.1.2.2.
(5) Reinstall and tighten the right and left side panels, as shown in Fig 4.1.2.3.
(6) Adjust the height of the unit to make the drain pipe slant slightly downward so that the
drainage will become much smoother, as shown in Fig 4.1.2.3.
Floor type
Fig.4.1.2.2

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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Ceiling type
Fig.4.1.2.3
4.1.3 Leveling
The water level test must be done after installing the indoor unit to make the unit is horizontal,
as shown below.
Notes: Adjust the height of the unit to make the drain pipe slant slightly downward so that
the drainage will become much smoother.
Fig.4.1.3
4.2 Refrigerant Pipe Connection
(1) Aim the flaring port of copper pipeat 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.

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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Fig 4.2
(3) Use pipe bender 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 Drainage Pipe
(1) The drainage pipe shouldbe short and the gradient downwards should be at least 1%~2%
in order to drain condensation water smoothly.
(2) The diameter of drainage hose should be bigger or equal to the diameter of drainage pipe
joint.
(3) 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.
(4) 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 hose and wire binder.
Never connect the drainage hole and drainage hose with glue.
(5) 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, thickerpipes should be applied.
Fig.4.3.1.1
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

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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(6) Connect the drainage pipe properly, as shown in Fig 4.3.1.2.
Fig.4.3.1.2
4.3.2 Drainage Pipe Installation
(1) Drainage pipe should have the same diameter or larger diameter than the connection
pipes (PVC pipe, outside diameter 17mm, thickness≥1.75mm).
(2) Keep drainage pipe short and sloping downwards at a gradient of at least 1% for
preventing forming air bubbles.
(3) Insert the drainage hose into drain socket, tighten the metal clamp securely.
(4) Warp the sealing pad over drain hose and metal clamp for heat insulation.
(5) Make sure to perform insulation work for all drainage piping in order to prevent any
possible water drop due to dew condensation.
(6) Apply the suitable diameter for converging drainage pipe according to the operating
capacity of the unit, as show in Fig. 4.3.2.1.
Fig.4.3.2.1
-T -drainage pipes assembled by T-shaped joints

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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(7) The horizontal pipe can’t be connected to vertical pipe in thesame level; please select the
connection way as shown in following figure.
NO1: Three-way connection of drainage pipe joints (Fig 4.3.2.2).
NO2: Connection of downspout elbow (Fig 4.3.2.3).
NO3: Inserting horizontal pipe connection (Fig 4.3.2.4).
(8) 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.
Fig.4.3.2.5
(9) Prepare the local piping at the connection point for the drain pipe, as shown in the
installation drawings.
Fig.4.3.2.6

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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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).
(2) During the test, please carefully check the drainage joint and make sure no any leakage
occur.
(3) It’s strongly recommended to do the drain test before ceiling decoration.
Ceiling type
Floor type
Fig.4.3.3
4.4 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.
Notes:
Do perform the commissioning operation before first use, automatic addressing or other
settings, please refer to the manual of ODU.

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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5 Wiring Work
Notes:
①Units must be grounded 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 capacity of power supply must be sufficient and the sectional area of wires in the
room should be above 2.5 mm2.
④The unit should be powered by independent circuit and specific socket.
⑤The wiring should be in accordance with related regulations in order to ensure the units
reliable running.
⑥Install circuit breaker for branch circuit according to related regulations and electrical
standards.
⑦Crimp terminal or single wire must be applied for all wires.
⑧Keep cable away from refrigerant piping, compressor and fan motor.
⑨Do not change the wiring inside the unit.
⑩If there is strong electromagnetic interference around the unit, shielded twisted pair line
should be applied; the metal shielded layer of twisted pair wire must be grounded to avoid
electromagnetic interference.
⑪
The communication wires should be separated from power cord and connection wire
between indoor unit and outdoor unit.
⑫
Adjust the static pressure via wired controller according to site circumstance.
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 patch 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 patch board.
3) Insert the wire into the ring tongue terminal and tighten by crimping tool.
4) Use the screwdriver for tightening the terminal.

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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.
Fig 5.2
For units with single-phase power supply.
1) Detach the electric box lid.
2) Let the power cord pass through the wiring through-holes.
3) Connect the power cord to terminal "L, N, ”.
4) Fix the power cord with wiring clamp.
5.3 Connection of Communication Wire between Indoor Unit and Outdoor
Unit (or Indoor Unit)
For units with single-phase power supply.
(1) Detach the electric box lid.
(2) Let the Communication cable pass through the wiring through-holes.
(3) Connect the communication wire to terminal D1 and D2 of indoor 4-bit wiring board, as
shown in Fig 5.3.1.

Multi VariableAir Conditioners Floor and Ceiling Type Indoor Unit
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(4) Fix the communication cable with clamp of electric box.
(5) For more reliable communication, make sure connect the downstream IDU of the
communication bus (terminal D1 and D2), as shown in Fig 5.3.2, terminal resistor to the most
terminal resistor is provided with each ODU.
5.4 Connection of Communication Wire for Wired Controller
(1) Detach the electric box lid.
(2) Let the communication wire pass through the wiring through-holes.
(3) Connect the communication wire to terminal H1 and H2 of indoor 4-bit wiring board.
(4) Fix the communication wire with clamp.
(5) Wiring instructions of signal receiver and wired controller.
Fig.5.4.1
(6) Both IDU and wired controller are equipped with signal receiver, and available for remote
control respectively. (Fig 5.4.2)
Fig.5.4.2