Impecca ISMIFC18S User Manual
Owner's Manual
Split Type Wall-mounted Air Conditioner
Model:
Thank you for choosing our product.
For proper operation, please read and keep this manual carefully.
If you have lost the Owner’s Manual, please contact the local agent or
visit www.impecca.com for an electronic version.
ISMO-1821
v
. 1.1
In line with the company
’s policy of continual product improvement, the aesthetic and dimensional
characteristics, technical data and accessories of this appliance may be changed without notice.
CONTENTS
Conformity And Range
The Instructions Before Use
Name of Parts
Technical Data
GENERAL
INFORMATION
Outdoor Unit Working Temperature Range
Electrical Connections
Installing The Outdoor Unit
Bleeding
Maintenance
Installation Dimension Diagram
INSTALLER
Check After Installation
GENERAL INFORMATION
1
2
3
4
4
5
8
6
7
7
8
The products in this manual may be different with the rea one, according to different models, l
some models have displayer and some models without displayer, the position and shape of
the displayer please refer to the real one.
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 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.
Explanation of Symbols
Indicates a hazardous situation that, if not avoided, will result in death
or serious injury.
Indicates a hazardous situation that, if not avoided, could result in death
or serious injury.
Indicates a hazardous situation that, if not avoided, may result in minor
or moderate injury.
Indicates important but not hazard-related information, used to indicate
risk of property damage.
Indicates a hazard that would be assigned a signal word
WARNING or CAUTION.
CONFORMITY AND RANGE
Please read this owner's manual carefully before operating the unit and keep it carefully for consultation.
Instructions for installation and use of this product are provided by the manufacturer.
Only use the air conditioner as instructed in this booklet. These instructions are not intended to
cover every possible condition and situation. As with any electrical household appliance, common sense
and caution are therefore always recommended for installation, operation and maintenance.
GENERAL INFORMATION
1
THE INSTRUCTIONS BEFORE USE GENERAL INFORMATION
WARNING
When having a burning smell or
★ ★
smoke,please turn off the power
supply and contact with the service center.
If the abnormity still exists,the unit
may be damaged,and may cause
electric shock or fire.
Power must adopts the special
★
circuit to prevent fire.
Otherwise, it can cause electric
shock or fire.
★ ★
Otherwise,the accumulated dusts
may cause overheating or fire.
The power supply must adopt the
special circuit that with air switch
protection and assure it has enough capacity.The unit will be turned
on or off according to your requirement automatically,please do not
turn on or turn off the unit frequently,otherwise disadvantage effect
may be caused to the unit.
Disconnect the power supply if
long putting the air conditioner
out of use.
Never cut off or damage power
★
cables and control wires. If the
power cable and signal control
wire were damaged, change
them by professional.
Never damage the electric wire
or use the electric wire which is
not appointed.
Otherwise,it will cause overheating
or fire.
When cleaning,it is necessary
★ ★
to stop driving and turn off the
power supply.
Cut off power supply
Otherwise,it may cause electric
shock or damage.
Please note whether the insta-
★ ★
lled stand is firm enough or not.
Rated voltage of this air conditioner 220-240V, 60Hz, The compressor will vibrate sharply if the
voltage is too low, resulting in
damage to refrigerating system.
Electrical component are easy to
damage if the voltage is too high.
Don't step on the top of the
outdoor unit or place something
on it.
Don't attempt to repair the air
★
conditioner by yourself.
The wrong repair will lead to an
electric shock or fire,so you should
contact the service center to repair.
Earthing: The unit must be reli-
★
ably earthed.The earthing cable
shall be connected to the special earthing device in the construction.
If it is damaged, it may lead to the
fall of the unit and cause the injury.
As falling off the outdoor unit can be
dangerous.
2
NAME OF PARTS
GENERAL INFORMATION
WARNING
Be sure to cut off the power supply before cleaning the air conditioner; otherwise electric
shock might happen.
Wetting of air conditioner may cause the risk of electric shock. Make sure not to wash
your air conditioner in any case.
Volatile liquids such as thinner or gasoline will cause damage to the appearance of air
conditioner. (Only use soft dry cloth moist cloth clean the air conditioner cabinet).
This product must not be disposed together with the domestic waste.
This product has to be disposed at an authorized place for recycling of electrical and
electronic appliances.
The temperature of refrigerant circuit will be high,please keep the interconnection cable
away from the copper tube.
1
OUTDOOR UNIT
No. Description
1 Air outlet grille
2 Valve
Note: The above figures are only intended to a simple
diagram of the appliance and may not correspond to the
appearance of the units that have been purchased.
2
TECHNICAL DATA GENERAL INFORMATION
MODE
Electrical data
Electricity supply
Fuse or air switch
Minimum power cord section
Size and clearance
L
P
L
P
H
H
ISMO-1821
208/230V,60HZ
20
2.5
890
362
700
mm
mm
mm
mm
2
OUTDOOR UNIT WORKING TEMPERATURE RANGE GENERAL INFORMATION
OutdoorsideDB/WB(c)
Maximum cooling
Maximum heating
48/27/-
3
ELECTRICAL CONNECTIONS
1. Remove the handle at the right side plate of the outdoor
unit (one screw).
2. Remove the cable clamp, connect the power connection
cable with the terminal at the row of connection and fix
the connection. The fitting line distributing must be
consistent with the indoor unit. terminal of line bank.
Wiring should meet that of indoor unit.
3. Fix power connection wire by wire clamp.
4. Ensure wire has been fixed well.
To unit A
INSTALLER
To unit B
5. Install the handle.
Including an air switch with suitable capacity,
please note the following table. Air switch
should be included magnet buckle and heating
buckle function, it can protect the circuit-short
and overload. (Caution: please do not use the
fuse only for protect the circuit)
Air switch capacityAir-conditioner
ISMO-1821
25A
An all-pole disconnection switch having a contact
separation of at least 3mm in all pole should be
connected in fixed wiring.
Wrong wire connection may cause malfunction of
some electric components.After fixing cable, ensure
that leads between connection to fixed point have
some space.
L1
L1 L2
L2
Power cord
connecting
cable
L2
L1
connecting
cable
To the power supply
The connection pipes and the connectiong wirings
of the unit A and unit B must be corresponding to
each other respective.
The appliance shall be installed in accordance with
national wiring regulations.
Note: the above figures are only intended to be a simple
diagram of the appliance and may not correspond to the
appearance of the units that have been purchased.
4
INSTALLING THE OUTDOOR UNIT INSTALLER
Location
Use bolts to secure the unit to a flat, solid floor.
When mounting the unit on a wall or the roof, make
sure the support is firmly secured so that it cannot
move in the event of intense vibrations or a strong
wind.
Do not install the outdoor unit in pits or air vents
●
Installing the pipes
Use suitable connecting pipes and equipment for
the refrigerant R410A.
Model(m) 1821x2
Max. connection pipe length
Max. connection pipe length
(Simple one indoor unit)
The refrigerant pipes must not exceed the maximum
heights 5m(1821K).
Wrap all the refrigerant pipes and joints.
Tighten the connections using two wrenches wor-
king in opposite directions.
Caution: Installation Must be Performed in Accordance
with the NEC/CEC by Authorized Personnel Only.
20
10
Install the drain fitting and the drain hose
(for model with heat pump only)
Condensation is produced and flows from the outdoor unit when the appliance is operating in the
heating mode. In order not to disturb neighbours
and to respect the environment,install a drain fitting
and a drain hose to channel the condensate water.
Install the drain fitting and rubber washer on the
outdoor unit chassis and connect a drain hose to it
as shown in the figure.
BLEEDING INSTALLER
Humid air left inside the refrigerant circuit can cause compressor malfunction. After having connected the indoor
and outdoor units, bleed the air and humidity from the
refrigerant circuit using a vacuum pump.
(1) Unscrew and remove the caps from the 2-way and 3-
way valves.
(2) Unscrew and remove the cap from the service valve.
(3) Connect the vacuum pump hose to the service valve.
(4) Operate the vacuum pump for 10-15 minutes until an
absolute vacuum of 10 mm Hg has been reached.
(5) With the vacuum pump still in operation, close the
low-pressure knob on the vacuum pump coupling.
Stop the vacuum pump.
(6) Open the 2-way valve by 1/4 turn and then close it
after 10 seconds. Check all the joints for leaks using
liquid soap or an electronic leak device.
(7) Turn the body of the 2-way and 3-way valves. Discon nect the vacuum pump hose.
(8) Replace and tighten all the caps on the valves.
Diameter (mm)
Φ9.52
Φ16
Φ12
Φ19
Twisting moment (N.m)
15-20Φ6
35-40
60-65
45-50
70-75
18K unit need to be installed the indoor unit
18K MODE:
conversion joint
Service
inlet
(2)Turn
(8) Secure
Refrigerant fluid di
3-way valve
Vacuum pump Vacuum pump
Vacuum pump
INDOOR
UNIT
rection of fiow
(7)Turn to open fully
Valve cap
(8) Secure
2-way valve
(6) Open by 1/4 turn
(7)Turn to open fully
(2)Turn
alve cap
V
(2)Turn
(8) Secure
Connect to the
indoor unit
5
MAINTENANCE INSTALLER
Use suitable instruments for the refrigerant R410A.
Do not use any other refrigerant than R410A.
●
Do not use mineral oils to clean the unit.
INSTALLATION DIMENSION DIAGRAM INSTALLER
The installation must be done by trained and qualified service personnel with reliability according to this
manual.
Contact service center before installation to avoid the malfunction due to unprofessional installation.
When picking up and moving the units, you must be guidedby trained and qualified person.
Ensure that the recommende dspace is left around the appliance.
50c
Space to the cover
or above
30cm
Space to the cover
or above
200cm
(Air outlet side)
m
or more
30cm
(Air inlet side)
50cm
Space to the wall
or above
or above
6
CHECK AFTER INSTALLATION INSTALLER
Check Items
Is the installation reliable?
Has the gas leakage been checked?
Is the thermal insulation of the unit
sufficient?
Is the drainage smooth?
Does the power supply voltage accord
with the rated voltage specified on the
nameplate?
Are the lines and pipelines correctly
installed?
Has the unit been safely grounded?
Problems Owing to Improper Installation
The unit may drop, vibrate or make noises
May cause unsatisfactory cooling (heating)
effect
May cause condensation and water dropping
May cause condensation and water dropping
The unit may bread down or the components
may be burned out
The unit may bread down or the components
may be burned out
Risk of electrical leakage
Are the models of lines in conformity
with requirements?
Are there any obstacles near the air
inlet and outlet of the indoor and outdoor units?
Have the length of refrigerating pipe
and refrigerant charge amount been
recorded?
The unit may bread down or the components
may be burned out
The unit may bread down or the components
may be burned out
It is not easy to decide the charge amount
of refrigerant.
7
CUSTOMER S
Before contacting customer support, please see the troubleshooting guide above.
Visit our website to contact us, find answers to Frequently Asked Questions, and for other
resources which may include an updated version of this user's guide.
UPPORT
WWW.IMPECCA.COM
If you wish to contact us by phone, please be sure to have your model number and serial
number ready and call us between 9:00am and 6:00pm ET, at +1 866-954-4440.
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© 2016 Impecca, a division of LT Inc., Wilkes Barre, PA.
Flex Series R410A GMV Multi VRF
Floor and Ceiling Type
Indoor Unit (For North America)
Owner's Manual
Commercial Air Conditioners
Models:
ISMI-FC18
ISMI-FC24
Thank you for choosing Commercial Air Conditioners, please read this
owner’s manual carefully before operation and retain it for future reference.
v 1.1
User Notice
When installing, the entire capacity of the cooperating indoor unit should be not larger than
◆
150% of outdoor unit, otherwise, it will cause the shortage of cooling (heating) capacity.
The power supply of the entire unit must be the power supply of outdoor unit. And disconnect
◆
the main power of outdoor unit before cleaning.
In order to start up the unit successfully, the main power switch should be opened 8 hours
◆
before the operation.
After receiving the turn off signal, every indoor unit will continue to work for 20-70sec to
◆
make good use of the rest cool air or the rest heat air in the heat exchanger, which will prepare for
the next operation. And this is normal.
When the selected operating mode of the indoor unit is conflicted to the operating mode of
◆
the outdoor unit, 5 sec later, the malfunction hint will be shown on the indoor unit or wired controller,
then the indoor unit will stop. At this time, change the operating mode of the indoor unit to the one
that would not conflict with the outdoor operating mode to make the operation normal. The HEAT
mode conflicts with each of the COOL mode, DRY mode and FAN mode, while the COOL mode,
DRY mode and FAN mode are compatible between each other.
The appliance shall not be installed in the laundry. The appliance shall not be used by
◆
children without supervisor.
Power supply fluctuating range (+/-10%, +/-1Hz)
◆
Humidity range: 30%~95%.
◆
Main switch provided by end user: main switch handle should be black or gray, it can be
◆
locked in “OFF” position with padlock.
The main disconnection device should be installed at a height of 0.6~1.7m. Over current
◆
protection is required(UL 1995,CSA C22.2).
The cooling range of the unit is the outdoor ambient temp -5~48℃ DB, the heating range of
◆
the unit (only for the heat pump type unit) is the outdoor ambient temp. -15~27℃ DB.
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 product must not be disposed together with the domestic waste. This product has
to be disposed at an authorized place for recycling of electrical and electronic appliances.
Thank you for selecting Impecca air conditioner. Before use, please read this
manual carefully and keep it properly for furthur reference.
Contents
1 Safety Precautions .......................................................................................... 1
2 Installation Precautions and Location Choosing ............................................. 2
2.1 Installation Precautions ......................................................................................... 2
2.2 Location Choosing ................................................................................................ 2
2.3 Imappropriate Location ......................................................................................... 2
3 Installation of Floor and Ceiling Type Indoor Unit ............................................ 3
3.1 Space Dimension for Unit Installation ................................................................... 3
3.2 Important Notice .................................................................................................... 3
3.3 Installation Description .......................................................................................... 3
3.4 Electrical Wiring .................................................................................................... 6
3.5 Drainpipe Installation ............................................................................................ 7
3.6 Install the Connection Pipes ................................................................................. 8
4 Part Names of Floor and Ceiling Type Indoor Unit ........................................ 10
5 Working Temperature Range ......................................................................... 11
6 Maintenance Method ..................................................................................... 12
6.1 Cleaning the Air Filters ........................................................................................ 12
6.2 Cleaning the Unit ................................................................................................ 12
6.3 At the Start of the Season ................................................................................... 12
6.4 During the off Season ......................................................................................... 12
7 Operating Instructions ................................................................................... 13
8 Malfunction Analysis ...................................................................................... 15
8.1 Service Center ..................................................................................................... 15
8.2 After-sales Service ............................................................................................... 16
Flex Series for North America
1 Safety Precautions
Please read this manual carefully before using this unit. Operate it correctly according to the
guide in this manual.
Please pay special attention to the indicating meaning of these two marks:
Warning! This mark means that the unit may cause property damage, personal injury or
loss of life if the operation is incorrect.
Caution! This mark means that the unit may cause minor or moderate property damage or
personal injury.
Warning!
The unit should be earthed reliably. Do not connect the earth line to the gas pipe, water pipe,
◆
drainage pipe or other unsafe places in potential.
Air conditioner must use special power supply circuit and switches for creepage protect and
◆
air with enough capacity should be installed in the circuit.
Ensure that the connecting of power cord is reliable, otherwise, electric shock or fire may
◆
happen.
Do not cut off the power supply when the unit is running, otherwise the lifetime of the unit will
◆
be shortened.
Do not damage wires or use the wires that are not recommended, otherwise, electric shock
◆
or fire may happen
Please don’t operate the unit with wet hands, or electric shock may happen.
◆
Do not put a finge , a rod or other objects into the air outlet or inlet to avoid of damage or
◆
injury.
Cut down the main power supply immediately if any abnormality happens (such as smell of
◆
fire etc.). Contact with the service center and consult the qualified technician
Do not repair or adjust the air conditioner by yourself. Please contact the service center or
◆
Impecca technicians for help.
Do not use the fuse with unsuitable capacity or iron thread instead of fuse, otherwise, it will
◆
cause malfunction or fire
Switch off the power supply of the unit before cleaning the air conditioner, otherwise, electric
◆
shock or damage may happen.
Please turn off the main power of the whole unit before cleaning the conditioner, otherwise
◆
electric shock or harm may be happened.
Chemical sprayer should be placed 1m or more away from the unit, otherwise fire or
◆
explosion may happen.
Do not block air inlets or outlets. Impaired air flow may result in insufficient performance or
◆
trouble.
1
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