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Split Air Conditioner
Owner's Manual
Residential Air Conditioners
MODEL:
ISMO-3016
v. 1.1
Page 2
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
The products in this manual may be different with the real one, according to different
models, some models have displayer and some models without displayer, the position
and shape of the displayer please refer to the real one.
GENERA L INFORMATION
1
2
3
4
4
5
8
8
9
9
10
CONFORMITY AND RANGE
GENERAL INFORMATION
The air conditioner you have purchased is in conformity with the following American Directives
UL1995:
Please read this owner's manual carefully before operating the unit and keep it carefully for consultation.
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.
1
Page 3
THE INSTRUCTIONS BEFORE USE
GENERA L 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.
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.
Otherwise, the accumulated dusts
may cause overheating or fire.
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 installed
stand is firm enough or not.
Rated voltage of this air conditioner
208-230V,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 reliably
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
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NAME OF PARTS
Warning
If the supply cable is damaged, it must be replaced by the manufacturer
or its service agent or a similarly qualified person in order to avoid a hazard.
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).
Do not dispose this product as unsorted municipal waste.
Collection of such waste separately for special treatment
is necessary.
The temperature of refrigerant circuit will be high,please keep the
interconnection cable away from the copper tube.
OUTDOOR UNIT
N o. Description
GENERAL INFORMATION
1
1 Air outlet grille
2
Valve
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.
TECHNICAL DATA
Electrical data
Electricity Supply
Fuse or air switch
Minimum power cable section
Refrigerant gas(R410A)
Size and clearance
L
A
P
L
P
H
H
B
A
B
208/230V/1~60Hz
40
4.0
2200
890
362
700
560
368
2
mm
g
mm
mm
mm
mm
mm
2
OUTDOOR UNIT WORKING TEMPERATURE RANGE
Maximum cooling
Minimum cooling
Maximum heating
Minimum heating
Outdoor side DB/WB(
48/-
-5/-
27/-
-15/-
)
c
3
GENERAL INFORMATION
Page 5
ELECTRICAL CONNECTIONS
1.
Remove the handle at the right side plate of the
outdoor unit (ten screw).
Remove the cable clamp, connect the connection cable
2
.
and power 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.
Fix power connection wire by wire clamp.
3.
4.
Ensure wire has been fixed well.
Install the handle.
5.
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.
The connect ion pipes and the connectiong wirings of
the unit A ,unit B,unit C and unit D must be corresponding
to each other respective.
The appliance shall be installed in accordance with
national wiring regulations.
Do not install the outdoor unit where it is exposed
to the sunlight.
INSTALLER
D
connection cable
connection cable
connection cable
C
A
Power
cable
B
connection cable
1) The power cable should be put in from the hole under
connection cable cover.
2) If connecting with two indoor units, the connection cable
should be put in from hole A and hole B
3) If connecting with three indoor units, the connection cable
should be put in from hole A , B and C
4) If connecting with four indoor units, the connection cable
should be put in from hole A, B , C and D.
All power cables and connection cables must be
protected with conduits.
To unit A
L1 L2
power
cable
To the power supply
L1
L2
Indoor unit
connection
cable
L2
L1
2 3
N(1)
A B C D
HANDLING
After having removed the packaging, check that the
contents are intact and complete.
The outdoor unit must always be kept upright.
N(1)
To unit B
connection
cable
2 3
To unit D
connection
cable
Outdoor unit
N(1)
2 3
To unit C
connection
N(1)
cable
2 3
Handling must be done by suitably equipped qualified
technical personnel using equipment that is for suitable
the weight of the appliance .
USER
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Page 6
INSTALLING THE OUTDOOR UNIT
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.
INSTALLER
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.
Max. connection
Max. connection
unit)
The refrigerant pipes must not exceed the maximum
pipe length
pipe length(Simple
one indoor
70
20
Drain-water hole
Bottom frame
heights 10m.
Wrap all the
refrigerant pipes and joints.
Tighten the connections using two wrenches working
in opposite directions.
Caution: Installation Must be Performed in Accordance
Drain plug
Drain connecter
Hose (available commercially,
inner dia. 16mm)
with the NEC/CEC by Authorized Personnel Only
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) Ope
(7) Turn the body of the 2-way and 3-way valves. Discon-
(8) Replace and tighten all the caps on the valves.
n 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
.
nect the vacuum pump hose.
Diameter (mm)
Φ6
Φ9.52
Φ16
Twisting moment (N.m)
15-20
35-40
60-65
Vacuum pump Vacuum pump
Vacuum pump
Φ12
Φ19
45-50
70-75
(9) If the specification of outdoor unit gas valve is 3/8＂,
but curstomer needs to install 1/2＂indoor unit so that
it is need to use a “pipe joint subassembly” (Code 06643008)
to make a conversion joint with outdoor unit gas valve and
connection pipe, as show in following.
conversion joint
(2) Turn
(8) Secure
2-way valve
(6) Open by 1/4 turn
(7) Turn to open ful l
Val ve cap
(2) Turn
(8) Secure
Connect to the
y
indoor unit
Ser vice
inlet
(2) Turn
(8) Secure
INDOOR
Refrigerant fluid direction of flow
UNIT
3-way valve
(7) Turn to open ful ly
Val ve cap
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Page 7
MAINTENANCE
Use suitable instruments for the refrigerant R410A.
Do not use any other refrigerant than R410A.
Do not use mineral oils to clean the unit.
INSTALLER
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 guided by trained and qualified person.
Ensure that the recommended space is left around the appliance .
or more
50c m
Space to the cover
30c m
or abov e
Space to the cover
30cm
or above
(Air inlet side)
Spa ce to the wal l
or above
200 cm
(Air outlet side)
This is just the schematic plan, please refer to the actual product.
6
50c m
or abo ve
Page 8
CHECK AFTER INSTALLATION
The unit may bread down or the components
The unit may bread down or the components
may be burned out
INSTALLER
Check Items Problems Owing to Improper Installation
Is the installation reliable? The unit may drop, vibrate or make noises
Has the gas leakage been checked? May cause unsatisfactory cooling (heating)
effect
Is the thermal insulation of the unit
May cause condensation and water dropping
sufficient?
Is the drainage smooth? May cause condensation and water dropping
Does the power supply voltage accord
with the rated voltage specified on the
The unit may bread down or the components
may be burned out
nameplate?
Are the lines and pipelines correctly
installed?
The unit may bread down or the components
may be burned out
Has the unit been safely grounded? Risk of electrical leakage
Are the models of lines in conformity
with requirements?
Are there any obstacles near the air
inlet and outlet of the indoor and outdoor
may be burned out
units?
Have the length of refrigerating pipe
and refrigerant charge amount been
recorded?
CUSTOMER
Before contacting customer support, please see the troubleshooting guide above.
Visit our website to contact us, find answers to Frequently Ask
resources which may include an updated version of this user's guide.
SUPPORT
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.
Keep tabs on Impecca's newest innovations & enter contests via our social network feeds:
www.facebook.com/Impecca/
www.instagram.com/impecca/
It is not easy to decide the charge amount
of refrigerant.
ed Questions, and for other
@impeccausa
© 2016 Impecca, a division of LT Inc., Wilkes Barre, PA.
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Flex Series R410A GMV Multi VRF
Cassette Type Indoor Unit
(For North America)
Owner's Manual
Commercial Air Conditioners
Model: ISMI-C24
Thank you for choosing Commercial Air Conditioners, please read this
owner’s manual carefully before operation and retain it for future reference.
Page 10
User Notice
The total capacity of the indoor units which runs at the same time can not exceed 150% of
◆
that of outdoor units; otherwise, the cooling (heating) effect of each unit would be poor.
A breaker (or fuse) needs to be installed in every indoor unit, and the capacity should be in
◆
accordance with indoor unit’s electrical parameter; all the indoor units are required to be centralized
controlled by a main switch, this switch can cut off the electric power supply in case of emergency.
The breaker (or fuse) on each indoor unit has the function of preventing short circuit and avoiding
abnormal overload, it should be connected in normal situation. The main switch controls the power
supply of all the indoor units. Before cleaning and maintaining the indoor units, it is very important
to turn off the main power supply switch.
In order to turn on the units successfully, the main power switch should be opened 8 hours
◆
before the operation.
It is a normal phenomenon that the indoor unit will still run for 20-70 seconds after the indoor
◆
unit receives the "stop" signal so as to make full use of after-heat for the next operation.
When the running modes of the indoor and outdoor units conict, it will be indicated on the
◆
display of the wired controller in ve seconds and then the indoor unit will stop. At this time, change
the operation mode of the indoor unit to the one that would not clash with the outdoor operating
mode to make the operation normal. The HEAT mode conicts 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 moist places, such as laundry.
◆
An all-pole disconnection switch having a contact separation of at least 3mm in all poles
◆
should be connected in xed wiring.
Main switch is provided by end user. Main switch knob should be in black or gray, it can be
◆
locked on “OFF” with padlock.
The instruction of main power switch should be included in user manual and the
◆
recommended installing height should be at 0.6-1.7m. And also over current protection is required
(UL 1995,CSA C22.2).
The outdoor ambient temperature of the unit under cooling mode ranges from -5~48°C DB.
◆
The outdoor ambient temperature of the unit (only for the heat pump type unit) under heating mode
ranges from -15~27°C WB.
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.
Page 11
Contents
1 Safety Precautions .......................................................................................... 1
2 Installation of the Cassette Type Indoor Unit ................................................... 2
2.1 Schematic Diagram of Installation Spaces ............................................................ 2
2.2 Installation Location of the Indoor Unit ................................................................... 2
2.3 Important Notice: .................................................................................................... 3
2.4 Dimension of Ceiling Opening and Location of the Hoisting Screw (M10) ............ 3
2.5 Main Body of Hoisting Air Conditioner ...................................................................4
2.6 Connection of the Refrigerant Pipe ........................................................................ 4
2.7 Drain Hose ............................................................................................................. 5
2.8 Electrical wiring ...................................................................................................... 7
2.9 Install the Panel ..................................................................................................... 9
3 Parts and Components of Cassette Type Indoor Unit ................................. 12
4 Working Temperature Range ......................................................................... 13
5 Trouble Shooting ...........................................................................................14
6 Maintenance Method ..................................................................................... 16
6.1 Cleaning Air Filter ................................................................................................. 16
6.2 Clean Air Inlet Grille .............................................................................................17
6.3 Install and Change of Air Purier .........................................................................17
6.4 Clean Outlet Vent and Surface Panel ..................................................................18
6.5 Maintenance before or after Seasonal Use ......................................................... 18
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Flex Series for North America
1 Safety Precautions
Please read this manual carefully before using this unit, and operate it correctly according to
the guide in this manual.
Please take special attention to the meaning of these two marks:
Warning! It indicates improper operation which will lead to human casualty or severe injury.
Note! It indicates improper operation which will lead to injury or property damage.
Warning:
Do not adopt fuse with unsuitable capacity or adopt iron wire instead of fuse, otherwise
◆
malfunction or re may happen.
Turn off the main power switch immediately if malfunction (such as smell the burning odor
◆
etc.) happens.
Keep good ventilation in the room to avoid oxygen decit.
◆
Don’t insert nger or stick-like objects into the air inlet/outlet grille.
◆
Please install the unit in a place where is strong enough to withstand the weight of the unit;
◆
otherwise, the unit would fall down and cause injury or death.
Don’t apply or spray and paint or insecticide on the surface of unit, otherwise, fire may
◆
happen.
Never ret the unit and contact the sales agent or the professional installation personnel for
◆
the repair or relocation of the unit.
An all-pole disconnection switch having a contact separation of at least 3mm in all poles
should be connected in xed wiring.
Note:
Before using the unit, please check if the piping and wiring are correct to avoid water
◆
leakage, refrigerant leakage, electric shock, or re etc.
The main power supply must be earthed soundly to avoid the hazard of electric shock and
◆
never connect this earth wire to the gas pipe, running water pipe, lightening rod or phone cable's
earth lead.
Turn off the unit after it runs at least ve minutes; otherwise its service life will be shortened.
◆
Don’t allow children operate the air conditioner.
◆
Don’t allow children operate the air conditioner.
◆
Please turn off the main power of the unit before cleaning the conditioner or change the lter.
◆
Please cut off the main power if the conditioner will not be used for a long time.
◆
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Flex Series for North America
2 Installation of the Cassette Type Indoor Unit
2.1 Schematic Diagram of Installation Spaces
Wall
surface
Wall
surface
unit:mm
＞20
Model
ISMI-C24
Ground
surface
H
Wall
surface
H
260
Fig.1
2.2 Installation Location of the Indoor Unit
(1). Obstruct should be taken away from the inlet or outlet of the indoor unit so that the airow
can be blown though all the room.
(2). Ensure the installation work is done as per the schematic diagram of installation spaces.
(3). Select a place where is strong enough to withstand 4 times of the weight of the indoor unit;
otherwise it would incur vibration and noise.
(4). Ensure the installation place is at horizontal level.
(5). Select a place where the condensate water is easily drained out and the drain pipe can be
easily connected with outdoor unit.
(6). Make sure that there is enough space for care and maintenance. Make sure that the
distance between the indoor unit and ground is above 1800mm.
(7). When installing the steeve bolt, check if the installing place can stand 4 times of the weight
of the units. If not, reinforce before installation. (Refer to the installation cardboard and nd
where should be reinforced)
Note!
There will be lots of lampblack and dust sticking on the acentric, heat exchanger and water
pump in dining room and kitchen, which would reduce the capacity of heat exchanger, lead water
leakage and abnormal operation of the water pump. The following treatment should be taken
under this circumstance:
1). Ensure that the smoke trap above cooker has enough capacity to obviate lampblack to
prevent the indraft of the lampblack by the air conditioner.
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Flex Series for North America
2). Keep the air conditioner far from the kitchen so that the lampblack would not be indraft by
the air conditioner.
2.3 Important Notice:
To guarantee the good performance, the unit must be installed by technician according with
◆
this instruction.
◆ Please contact the local Impecca special nominated repair department before installation.
Any
malfunction caused by the unit that is installed by the department that is not special nominated
by Impecca would not deal without time by the inconvenience of the business contact.
2.4 Dimension of Ceiling Opening and Location of the Hoisting Screw (M10)
)
)
Decorated surface boards
950(
840( Indoor unit)
890*(Ceiling opening)
Gaps between hoisting screw rods
780(
Refrigerant pipe
Hoisting screw (X4)
680(Gaps between hoisting screw rods)
Indoor unit
840(
Ceiling opening
890(
950(Decorated surface boards)
A
)
)
Fig.2 Install Dimension of Model ISMI-C24
The drilling of holes in the ceiling must be done by the technicians.
◆
Installation stands for main body of the unit
Ceiling
(160)
Above 20
Fig.3
Notes: The dimension for the ceiling openings with * marks can be as large as 910mm. But the
overlapping sections of the ceiling and the decorated surface boards should be maintained at no
less than 20mm.
3
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Flex Series for North America
2.5 Main Body of Hoisting Air Conditioner
(1). The primary step for installing the indoor unit.
When attach the hoisting stand with hoisting screw, do use nut and gasket respectively at
◆
the upper and lower of the hoisting stand to x it. The use of gasket anchor board can prevent
gasket from breaking off.
(2). Use installation cardboard
Please refer to the installation cardboard about the dimension of ceiling opening.
◆
The central mark of the ceiling opening is marked on the installation cardboard.
◆
Install the installation cardboard on the unit by bolts (3 pieces), and fix the angle of the
◆
drainage pipe at the outlet vent by bolt.
(3). Adjust the unit to the suitable install place. (Refer to the Fig.4)
(4). Check if the unit is horizontal.
Inner drainage pump and oat switch are included in the indoor unit, check if 4 angle of
◆
every unit are horizontal by water level. (If the unit is slant toward the opposite of the coagulate
water ow, there may be malfunction of the oat switch and lead water drop.)
(5). Back-out the gasket anchor board used to prevent gasket from breaking off and tighten the
nut on it.
(6). Back-out the installation cardboard.
Nut(supplied at scene)
Gasket(attachment)
Insert
Hoisting stand
Tighten(double nuts)
[Fix the hoisting stand firmly] [Fix the gasket firmly]
Center of the ceiling
opening
Water lever
Polyethylene pipe
Bolt(attachment)
Gasket anchor board(attachment)
Bolt of one of the angle of outlet pipe is
fix on the angle of the drainage solt
Install cardboard
Bolt(attachment)
[Fix the install cardboard]
Fig.4
Note!
● Please do tighten the nuts and bolts to prevent air conditioner from falling down.
2.6 Connection of the Refrigerant Pipe
When connect the pipe to the unit or remove it from the unit, please do use both spanner
◆
4
Page 16
Flex Series for North America
and torque wrench. as shown in Fig.5.
When connect, smear both inside and outside of the are nut with freeze motor oil, screw it
◆
by hand and then tighten it with spanner.
Refer to Table 1 to check if the nut has been tightened (tighten too greatly would damage the
◆
nut and lead to leakage).
Examine the connection pipe to see if it has gas leakage, then take the treatment of heat
◆
insulation, as shown in the Fig.5.
Only use medium-sized sponge to entwine the wiring interface of the gas pipe and heat
◆
insulation of the gas collection tube.
Smear freeze motoroil
here
Median sponge (attachment)
(entwine the wiring interface
with seal mat)
Torque wrench
Spanner
Wiring interface
Flare nut
Thread fasten(X4)
Gas collection tube
Liquid inlet tube
Heat preservation
sheath of liquid inlet
tube (attachment) (for
liquid tube)
Heat preservation
sheath of gas collection
tube (attachment)(for
gas tube)
Fig.5
Table 1: The moment of torque for tightening nut
Diameter（Inch
φ1/4’’
φ3/8’’
φ1/2’’
φ5/8’’
φ3/4’’
）
Surface thickness（mm
0.5 15-30 (N·m)
≥
0.71 30-40 (N·m)
≥
1 45-50 (N··m)
≥
1 60-65 (N·m)
≥
1 70-75 (N··m)
≥
）
Moment of torque (N·m)
If the specication of the outdoor unit pipe joint does not conform to that of the indoor unit, then
the joint specication of the outlet pipe of the indoor unit takes precedence. A reducing nipple shall
be installed at the joint of the outdoor unit so as to make the joint of the outdoor unit compatible
with that of the indoor unit.
2.7 Drain Hose
(1). Install the drain hose
The diameter of the drain hose should be equal or larger than that of connection pipes. ( The
◆
diameter of polythene pipe: Outer diameter: 25mm; Surface thickness ≥1.5mm)
Drain hose should be short and drooping gradient should at least 1/100 to prevent the
◆
5
Page 17
Flex Series for North America
formation of air bubble.
If drain hose cannot has enough drooping gradient, drain raising pipe should be added.
◆
To prevent bent of the drain hose, the distance between hoisting stand and the drain hose
◆
should be 1 to 1.5m.
1-1.5m
(Correct)1/100 or more gradient
(Wrong)
Fig.6
Use the drain hose and clamp attached. Insert the drain hose to the drain vent, and then
◆
tighten the clamp.
Wrap clamp with sponge on the drain hose to insulate heat.
◆
Heat insulation should be done to indoor drain hose.
◆
Sponge(attachment)
Clamp
Sponge (gray)
Clamp(attachment)
Drain hose
Below 4mm
Fig.7
Drain Stepup Pipe Note
The installation height of the drain raising pipe should less than 280mm.
◆
The drain raising pipe should form a right angle with the unit, and distance to unit should not
◆
beyond 300mm.
Within 300mm
Drain hose(attachment)
Roof
1-1.5m
Drain raising hose
Hoisting stand
Below 280mm
220mm
CeilingC lamp(attachment)
Fig.8
Instruction
The fall of the attached drain hose should be within 75mm so that the joint of the drain pipe
◆
doesn’t have to endure the unnecessary outside force.
6
Below 500mm
Page 18
Flex Series for North America
Drain hose(attachment)
Below 75mm
Below 500mm
Fig.9
Please install the drain hose according to the following process if several drain hoses join together.
◆
Above 100mm T-tie in join drain hose
The specs of the selected jion drain hose should fits the running capacity of the unit
Fig.10
(2). Check the drain state after installation
Check the drain state by immitting 600ml water slowly from the outlet vent or test hole.
◆
Check the drain state under cooling mode after electric circuit installation work is done.
◆
[Way of immiting]
Drain vent for repair use
(plasticstopper is included)
(drain the waterin waterspout
by this outlet vent）
Above 100m
[Immiting water from the outlet vent terminal]
Drain hose
[Immiting water from the rest hole]
Plastic water pot (The length of
the pipe should be about 100mm)
Test hole cover
Test hole
Fig.11
2.8 Electrical wiring
Note:The power of the entire indoor unit must be connected with outdoor unit.
About the electrical wiring, please see the circuit diagram attached with the unit.
◆
All the installation of electrical wiring must be done by technicians.
◆
Please do take the earthing treatment.
◆
Wiring Method of Connection Unit and Controller
7
Page 19
Flex Series for North America
Connection wiring (communication):
◆
Open electric box cover(1), drag the wiring (communication)from the rubber plug A, and
①
impact them well individually by impact fastener.
Wiring according to the indoor side circuit diagram.
②
Fix the impact fastener after connection.
◆
Wrap the small-sized sponge on the electric wire (do entwine it to prevent condensation).
◆
Impact tightly by impact fastener after connection and then t on the electric box (1) and (2).
◆
Put the 4-core cable through the hole of the chassis and the bottom of the appliance
◆
upward, and then connect the power line and the communication line from the outdoor unit to the
corresponding terminals N(1), 2, 3 , and grounding terminal of the indoor unit. Wiring shall be done
properly as per the wiring diagram. (Note: Be sure the wring terminals A/B/C/D and piping joints A/
B/C/D of the indoor unit match with that of the outdoor unit respectively).
To indoor unit
Power supply 3 way
terminal board 4 core
rubber wire
To indoor unit
Electric box cover(1)
GWHD(36)ND3AO
INDOOR UNIT D
XT
Cable-cross loop
INDOOR UNIT C
Impact fastener
Do seal here to prevent
water inleakage from here
Fig.12
INDOOR UNIT B
XT XT2
OUTDOOR UNIT
Cable-cross loop
Electric box cover(2)
INDOOR UNIT A
POWER
N
L
8
Page 20
GWHD(42)ND3AO
Flex Series for North America
INDOOR UNIT E
XT6
G
XT5
G
XT4
T CINDOOR UNIT D
OUTDOOR UNI
G
T
XT3
G
INDOOR UNIT AINDOOR UNIT BINDOOR UNI
XT2
G
L
XT1
POWER
N
2.9 Install the Panel
1. Set the panel to the indoor unit body by matching the position of the swing ap motor of the
panel to the piping position of the panel to the piping position of the indoor unit as shown by Fig.13.
2. Install the panel
(1). Install the panel on the indoor unit temporarily. When install, hang the latch on the hook that
is located on the opposite side of the swing ap on the panel of the indoor unit. (2 positions)
(2). Hang the remaining 2 latches to the hooks on the sides of the indoor unit.(Be careful not to
let the swing motor lead wire get caught in the sealing material.)
9
Page 21
Flex Series for North America
(3). Screw the 4 hexagon head screws under the latches in about 15mm. (The panel would
rise)
(4). Adjust the panel by turning it toward the direction pointed by the arrow as shown in Fig.13,
so that the adjust board connect the ceiling well.
(5). Tighten the screws until the thickness of the sealing material between panel and indoor unit
reduced to 5-8mm.
Hook
Latch
Piping position
Swing flap motor
Indoor unit
Ceiling
Air outlet vent
Sealing material
5mm to 8mm
Decoration panel
Fig.13
Notes:
①.
Improper screwing of the screws may cause the troubles shown in Fig.14.
10
Page 22
Air leak
Flex Series for North America
Air leak from ceiling
Water condensatation, water drop
Fig.14
②.
If gap still exist between ceiling and decoration panel after tightening the screws, readjust
the height of the indoor unit. (As shown in Fig.15)
If the raising lever and drain hose are
not affect, can adjust the height of
indoor unit by the hole on the corner
of panel.
Gaps are not allowed
Fig.15
After xing, be sure that there is no gap between the ceiling and the panel.
※
③.
Wiring of the decoration panel (Fig.16)
Connect the joints for swing ap motor lead wire (at 2 places) installed on the panel.
At body At pane
At body At pane
Fig.16
11
Page 23
Flex Series for North America
3 Parts and Components of Cassette Type Indoor Unit
Drainage equipment (inside type)
Discharge cindensate water from
indoor unit when cooling
Drainage hose
Guide louver
(placed in air
outlet vent)
Air outlet vent
Connecting pipe
Air filter, purifire
(in air inlet grille)
Air inlet grille
Fig.17 ISMI-C24
12
Page 24
4 Working Temperature Range
Working Temperature Range
Indoor side state
Dry bulb
temp.
℉（℃）
Rated. Cooling 80.0(26.7) 67.0(19.4) 95.0(35.0) 75.0(23.9)
Max. cooling 80.0(26.7) 67.0(19.4)
Min. cooling 67.0(19.4)
Rated. Heating
Max. heating 80.0(26.7) — 75.0(23.9)
Low Ambient heating
70
.0(21.1)
70
.0(21.1)
℉（℃）
Wet bulb
temp.
℉（℃）
57
.0(13.9) 67.0(19.4)
60
.0(15.6)
60
.0(15.6)
temp.
Flex Series for North America
Outdoor side state
Dry bulb
℉（℃）
115
.0(46.1) 75.0(23.9)
47
.0(8.3)
5
.0(-15.0)
℉（℃）
Wet bulb
temp.
57
43
65
3.2(-16.0
℉（℃）
.0(13.9)
.0(6.1)
.0(18.3)
)
13
Page 25
Flex Series for North America
5 Trouble Shooting
Warning!
Cut down the main power switch immediately if malfunction (such as smell the burning odor
◆
etc.) happens, and then contact service center. If the abnormal state is maintained, the unit may be
damaged or electric shock or re may happen.
Do not ret the conditioner. Please contact service center to repair or move the conditioner.
◆
Check the following items before contacting maintenance center
★
Phenomena Reason Remedial Measures
Blow of fuse or breaker Change fuse or close breaker
Power cut Restart when there is power supply
Air conditioner doesn’t
run at all
Air conditioner runs but
stops immediately
Abnormal cooling or
heating
Don’t connect with power Connect power well
Low batteries of wireless remote
controller
Wireless remote controller exceed
remote control area
Blockage in inlet or outlet vent of
indoor or outdoor unit
Blockage in inlet or outlet vent of
indoor or outdoor unit
Improper of temp. setting
Low setting of fan speed
Incorrect of wind direction
Door or window opened Close
Direct sun burn
Too many people in room
Too many heater in room
Filter blocked by dirt Clean lter
Change new batteries
Signal could be received within 8m
Clean out blockage
Clean out blockage
Adjust settings in wireless remote
controller
Adjust settings in wireless remote
controller
Adjust settings in wireless remote
controller
Hang curtain or jalousie before
windows
Instruction
★
If problem still cannot be solved after above checking, please contact service center.
14
Page 26
The following circumstance doesn't belong to malfunction
★
“Malfunction” Reason
Start up unit immediately after
Air conditioner doesn’t run
Mist is blown from air
conditioner
Noise is heard from air
conditioner
Dust be blown for air
conditioner
Odor gives out from air
conditioner
turned off
When opening power
When cooling
Slight click sound heard once
begin running
Hissing sound heard continuously
when cooling
Hissing sound heard when staring
or stopping
Slight hissing sound heard when
running or after running
Creak sound heard when running
or after running
Started up after long time’s doesn’t
runs
When running
Flex Series for North America
The overload protects switch
makes it run after 3 minutes
delay.
Run for about 1 minute without
other actions
The high humidity air in room is
cooled rapidly
Sound of initialization for electric
expand valve
The sound for gas refrigerant
owing in the unit
The sound for gas refrigerant
stops ow
Sound for running of drainage
system
The grating sound caused by
expands of panel and other parts
for the change of temperature
Dust in indoor unit be blown out
This is because when air
conditioning, odors or cigarette
smoke from the room that was
sucked in is discharged again.
After-sales Service
★
If there is any quality or other issues after purchasing air conditioner, please contact the local
service center.
15
Page 27
Flex Series for North America
6 Maintenance Method
When the unit won’t be used for a long time, please cut off the main power supply of air
conditioner.
Warning!
Do turn off the unit and cut off the main power supply when cleaning the air conditioner,
◆
otherwise electric shock or harm may happen.
It is forbidden to wash air conditioner by water rinsing, otherwise electric shock may happen.
◆
6.1 Cleaning Air Filter
When the usage environment has lots of dust, air filter should be cleaned more frequently
(about once 6 months).
(1). Open air inlet grille
Pull the 2 handles on air inlet grille at the same time with the direction showed by arrow in Fig.
18, pull it down slowly. (As per the reverse disassembly order when closing)
(2). Disassemble air lter
As shown in Fig. 19, pull the handle behind air inlet grille, raise it and disassemble. Then
remove the 3 puriers xed on lter.
purifier
Fig. 18 Fig. 19
(3). Clean
Use a cleaner or some water to wash lter; if the lter is too dirty ( like oil stain on it ), use some
warm water ( lower than 45℃) with neutral detergent to clean it, then dry it in the shade.
Note!
Do not clean the filter by hot water which temp. is higher than 45
deformation.
Do not place the lter near re; otherwise the lter may catch re or lead to deformation.
(4). Install air lter
Fix the 3 puriers on lter, install lter on the several bulges on top of air inlet grille, pull the
handle behind air inlet grille toward inside to x lter. As shown in Fig. 20.
(5). Close air inlet grille (Refer to the 1st step)
Maintenance Method
to prevent fading or
℃
16
Page 28
Flex Series for North America
Fig. 20 Fig. 21
6.2 Clean Air Inlet Grille
(1). Open air inlet grille (the same with the 1st step of Clean Air Filter)
(2). Take out air lter (the same with the 2nd step of Clean Air Filter)
(3). Take out air inlet grille
Open air inlet grille for an angle of 45°, as shown in g. 21, raise it.
(4). Clean
Clean it by soft brush, water and neutral cleaning, then dry it after cleaning.
Note!
Do not use water above 45℃ to wash the panel to prevent fading or deformation.
(5). Install air inlet grille (refer to 3rd step)
(6). Install air lter (refer to the 4th step of Clean Air Filter)
(7). Close air inlet grille (refer to the 1st step)
6.3 Install and Change of Air Purier
(1). Open air inlet grille (the same the 1st step of Clean Air Filter)
(2). Disassembly purier
As shown in g 22, disassembly air lter, screw out xing bolts xed on purier on lter, then
purier could be disassembly.
(3). Take out the package sack of static ber net lter, then install the lter in stand of purier,
and x purier on air lter.
(4). Install air lter (the same with the 4th step of Clean Air Filter)
Air filter
Purifier filter
Stand for purifier
Fix bolt of purifier
Fig.22
17
Page 29
Flex Series for North America
Function and usage period for air purifying
Adsorb CO, CO2, benzene, aldehydes and odor of gasoline etc..
◆
Adsorb poisonous material that is smaller than 1μm in air, as dust, pollen, bacteria, and
◆
virus.
Usage period is 6 months to 1 year. If it is necessary to be changed, purchase new purier
◆
in the nearest Impecca special engaged maintenance center.
6.4 Clean Outlet Vent and Surface Panel
Clean the surface panel by soft dry cloth or wet cloth with neutral scourer.
◆
It is forbidden to clean surface panel by gasoline, benzene, diluents, cleansing powder etc..
◆
If the guide louver is too dirty, it may be removed to be cleaned. (As narrated below)
◆
Disassembly and installation of guide louver
(1). Disassemble guide louver
Screw bolts in both ends of guide louver to loose.
Note!
Do not forcibly wipe guide louver when cleaning, otherwise painted surface layer would fall off.
(2). Install guide louver
Rotate guide louver slightly could install the protruding edge of both end into grooves on both
end of guide louver, and then tighten bolts.
6.5 Maintenance before or after Seasonal Use
Check before the seasonal use
Check if there is blockage at inlet or outlet of air conditioner.
◆
Check if the earthing wire has been earthed reliably.
◆
Check if the air lter has been installed well.
◆
In order to start up the air conditioner smoothly after long time’s turned off, turn on the main
◆
power supply 8 hours before turning on the air conditioner.
Maintenance after seasonal use
Clean lter and body of air conditioner.
◆
Cut off the main power supply of air conditioner.
◆
The cooling or heating capacity and sound level are tested before leaving factory.
◆
If the parameter changes, refer to the data offered on nameplate.
◆
6.6
Technical Support
Before calling technical support, please see the troubleshooting guide above. You may also visit
our website at www.impecca.com for answers to Frequently Asked Questions and to contact us.
Email: support@impecca.com
Phone: +1 866–954–4440
Web: www.impecca.com
18
Page 30
Wired Controller
IS-TT850
User's Manual
Thank you for choosing Impecca Air Conditioners. Please read this
owner’s manual carefully before operation and retain it for future reference.
Page 31
User Notice
Please carefully read this manual before installation and use of this product
ƹ
(QVXUHthere is separate SRZHUVXSSO\IRUHDFKLQGRRUXQLW
ƹ
Never install wired controller in a
ƹ
Shielded twisted pair line must be substituted as signal line for wired controller if the unit is
installed in the place where there is electromagnetic interference.
ƹ
Make sure communication line is connected into correct port to avoid communication
malfunction.
ƹ
Never knock, throw or frequently disassemble the wired controller.
ƹ
Never operate the wired controller with wet hand.
wet place or under direct sunlight.
Page 32
Contents
1 Display Section................................................................................................ 1
1.1 Controller's LCD ........................................................................................1
1.2 Instruction to LCD ....................................................................................... 2
2 Buttons ............................................................................................................3
2.1 Layout of Buttons .......................................................................................3
2.2 Functions of Buttons ................................................................................... 3
3 Operation Instructions .....................................................................................4
3.1 On/Off ......................................................................................................... 4
3.2 Mode Setting .............................................................................................. 4
3.3 Temperature Setting ...................................................................................4
3.4 Fan Setting ................................................................................................. 5
3.5 Timer Setting .............................................................................................. 5
3.6 Swing Setting .............................................................................................7
3.7 Sleep Setting .............................................................................................. 8
3.8 Turbo Setting .............................................................................................. 9
3.9 E-heater Setting .......................................................................................10
3.10 Blow Setting ........................................................................................... 11
3.11 Other Functions ......................................................................................12
4 Installation and Dismantlement .....................................................................12
4.1 Connection of the Signal Line of the Wired Controller ............................. 12
4.2 Installation of the Wired Controller ........................................................... 12
4.3 Dismantlement of the Wired Controller .................................................... 14
5 Errors Display ................................................................................................ 14
Page 33
1 Display Section
Wired Controller IS-TT850
Fig1.1.1 Diagram of wired controller
1.1 LCD Display of Wired Controller
Fig.1.1.2 LCD display
1
Page 34
Wired Controller IS-TT850
1.2 Instruction to LCD Display
Table 1.1
No. Symbols Description
1
2
3
4
5
6
7
8
9
10
11
12 SHIELD
13 Turbo Turbo function state
14 MEMORY
Swing function
Air exchange function (this function is yet unavailable for this unit).
Sleep function (Only sleep 1).
Each kind of running mode of indoor unit (auto mode)
Cooling mode
Dry mode
Fan mode
Heating mode
Defrosting function for the outdoor unit.
Gate-control function (this function is yet unavailable for this unit).
Lock function.
Shield functions (Button operation, temperature setting, On/Off operation,
Mode setting are disabled by the remote monitoring system.)
Memory function (The indoor unit resumes the original setting state after
power failure and then power recovery).
15
16
17
18 E-HEATER Electric auxiliary heating function.
19 BLOW Blow function.
20
21 QUIET
SAVE
It blinks under on state of the unit without operation of any button.
Energy-saving function (this function is yet unavailable for this unit).
Ambient/setting temperature value
Timing value.
Quiet function (two types: quiet and auto quiet)
(this function is yet unavailable for this unit).
2
Page 35
2 Buttons
2.1 Layout of Buttons
2.2 Functions of Buttons
Table 2.1
No. Name Function
Wired Controller IS-TT850
1 Enter/Cancel Function selection and cancellation.
2 Ÿ
6 ź
3 Fan
4 Mode Setting of the Cooling/Heating/Fan/Dry/Auto mode of the indoor unit.
5 Function Switchover among the functions of Turbo/Save/E-heater/Blow etc..
7 Timer Timer setting.
8 On/Off
4+2 Mode + Ÿ
3+6 )DQź
4+6
2+6 Ÿź
Mode ź
ķ
Running temperature setting of the indoor unit, range:
F(16°C-30°C).
Setting of the low/middle/high/auto fan speed.
Turn on/off the indoor unit.
With the A/C powered off, press these two buttons together for 5
seconds to toggle the Memory function. With Memory on, the unit will
return the the previous setting after resuming from a power failure.
With Memory toggled off, it will stay off
With the A/C powered off, press these two buttons together for 5 seconds
to determine if your unit is capable of just cooling or both cooling and
heating, indicated by the symbols shown.
With the A/C powered off, press these two buttons together for 5 seconds to
toggle between Fahrenheit and Celsius.
Press these two buttons together for 5 seconds to toggle the lock function.
ĸ
Timer setting, range:0.5(30 minutes) - 24 (hours).
61°F-86°
3
Page 36
Wired Controller IS-TT850
3 Operation Instructions
3.1 On/Off
Press On/Off button to toggle your A/C's power.
Note: The state shown in Fig.3.1.1 indicates the “Off” state of the unit after power has been restored
to the unit. The
3.2 Mode Setting
Under ON state of the unit, press the Mode to switch the operation modes as the
following sequence: Auto–Cooling–Dry–Fan–Heating.
screen shown in Fig.3.1.2 indicates the “On” state of the unit after power on.
Fig.3.1.1 “Off” State Fig.3.1.2 “On” State
3.3 Temperature Setting
3UHVVŸRUźWRLQFUHDVHGHFUHDVHWKHSUHVHWWHPSHUDWXUH,ISUHVVLQJHLWKHURIWKHP
continuously, the temperature will be increased or decreased by 1° every half a second,as
shown in Fig.3.3.1.
In the Cooling, Dry, Fan or Heating mode, the temperature setting range is 61°F-86°
F(16°C-30°C). In the Auto mode, the setting temperature not manually adjustable.
Fig.3.3.1 Fig.3.4.1
4
Page 37
Wired Controller IS-TT850
3.4 Fan Setting
While the unit is powered on, press
circularly as shown in Fig.3.4.1.
Fan
and then fan speed of the indoor unit will change
Low Middle
High
(Fig. 3.4.1)
3.5 Timer Settings
While the unit is powered on, pressing the Timer button allows you to
unit turns off. While the unit is powered off, pressing the Timer button allows you to set the dealy
until the unit turns on.
• 7LPHURQVHWWLQJ details
With the unit turned off, and no timer already programmed, press the Timer button. The
display will show "0.5" with "Hour on" blinking. PressŸorźbutton to adjust delay until unit
turns on and press Timer or Enter/Cancel to confirm.
• Timer off setting details:
With the unit turned on, and no timer already programmed, press the Timer button. The display
will show "0.5" with "Hour off" blinking.
• Timer off setting details:
With the unit turned on, and no timer already programmed, press the Timer button. The display will
show "0.5" with "Hour off" blinkingSUHVVŸRUźEXWWRQWRDGMXVWdelay until unit turns on and press
Timer or Enter/Cancel to confirm.
&DQFHOWLPHU
After setting of timer, if Timer button is pressed, LCD won’t display xx. Hour so that timer setting is
Timer off setting under the “On” state of the unit is shown as Fig.3.5.1.
canceled.
set the delay until the
Fig.3.5.1 Timer off Setting under the “On” State of the Unit
5
Page 38
Wired Controller IS-TT850
Timer on setting under the “Off” state of the unit is shown as Fig.3.5.2.
Fig.3.5.2 Timer on Setting under the “Off” State of the Unit
7LPHUUDQJHKU(YHU\SUHVVRIŸRUźZLOOPDNHWKHVHWWLPHLQFUHDVHGRUGHFUHDVHGE\
0.5hr. If either of them is pressed continuously, the set time will increase/ decrease by 0.5hr every
0.5s.
6
Page 39
Wired Controller IS-TT850
3.6 Swing Setting
Swing On: Press Function under on state of the unit to activate the swing function. In this case,
ZLOOEOLQN$IWHUWKDWSUHVV(QWHU&DQFHOWRPDNHDFRQ¿UPDWLRQ
Swing Off: When the Swing function is on, press Function to enter the Swing setting
interface,with
shown as Fig.3.6.1.
blinking. After that, press Enter/Cancel to cancel this function. Swing setting is
Fig.3.6.1 Swing Setting
Notes:
ķ
Sleep, Turbo or Blow setting is the same as the Swing setting.
ĸ
After the setting has been done, it has to press the key “Enter/Cancel” to back to the setting
VWDWXVRUTXLWDXWRPDWLFDOO\¿YHVHFRQGVODWHU
7
Page 40
Wired Controller IS-TT850
3.7 Sleep Setting
Sleep on: Press Function under the On state of the unit till the unit enters the Sleep setting
VWDWH$IWHUWKDWSUHVV(QWHU&DQFHOWRFRQ¿UPWKLVVHWWLQJ
Sleep off: When the Sleep function is activated, press Function to enter the Sleep setting
status. After that, press Enter/Cancel to cancel this function.
In the Cooling or Dry mode, the temperature will increase by 1°C after the unit runs under
Sleep1 for 1hr and 1°C after another 1hr.After that, the unit will run at this temperature.
In the Heating mode, the temperature will decrease by 1°C after the unit runs under Sleep 1 for
1hr and 1°C after another 1hr. After that, the unit will run at this temperature.
Sleep setting is shown as Fig.3.7.1.
Fig.3.7.1. Sleep Setting
8
Page 41
Wired Controller IS-TT850
3.8 Turbo Setting
Turbo function: The unit at the high fan speed can realize quick cooling or heating so that the
room temperature can quickly approach the setting value.
In the Cooling or Heating mode, press Function till the unit enters the Turbo setting status and
WKHQSUHVV(QWHU&DQFHOWRFRQ¿UPWKHVHWWLQJ
When the Turbo function is activated, press Function to enter the Turbo setting status and then
press Enter/Cancel to cancel this function.
Turbo function setting is as shown in Fig.3.8.1.
Fig.3.8.1 Turbo Setting
9
Page 42
Wired Controller IS-TT850
3.9 E-heater Setting
E-heater (auxiliary electric heating function): In the Heating mode, E-heater is allowed to be
WXUQHGRQIRULPSURYHPHQWRIHI¿FLHQF\
Once the wired controller or the remote controller enters the Heating mode, this function will be
turned on automatically.
Press Function in the Heating mode to enter the E-heater setting interface and then press
Enter/Cancel to cancel this function.
Press Function to enter the E-heater setting status, if the E-heater function is not activated,
and then press Enter/Cancel to activate it.
The setting of this function is shown as Fig.3.9.1 below:
Fig.3.9.1 E-heater Setting
10
Page 43
Wired Controller IS-TT850
3.10 Blow Setting
Blow function: After the unit is turned off, the water in evaporator of indoor unit will be
automatically evaporated to avoid mildew.
In the Cooling or Dry mode, press Function till the unit enters the Blow setting status and then
press Enter/Cancel to active this function.
When the Blow function is activated, press Function to the Blow setting status and then press
Enter/Cancel to cancel this function.
Blow function setting is as shown in Fig.3.10.1
Fig.3.10.1 Blow Setting
Notes:
ķ
When the Blow function is activated, if turning off the unit by pressing On/Off or by the
remote controller, the indoor fan will run at the low fan speed for 2 min, with “BLOW” displayed on
the LCD. While, if the Blow function is deactivated, the indoor fan will be turned off directly.
ĸ
Blow function is unavailable in the Fan or Heating mode.
11
Page 44
Wired Controller IS-TT850
3.11 Other Functions
a. Lock
8SRQVWDUWXS RI WKH XQLWZLWKRXWPDOIXQFWLRQRUXQGHU WKH ³2II´VWDWHRIWKH XQLW SUHVV ŸDQGźat
the same time for 5s till the wired controller enters the Lock function. In this case, LCD displays
.
After that, repress these two buttons at the same time for 5s to quit this function.
Under the Lock state, any other button press won’t get any response.
b. Memory
0HPRU\VZLWFKRYHU 8QGHUWKH³2II´ VWDWHRIWKH XQLWSUHVV0RGH DQG ŸDWWKH VDPHWLPHIRU
5s to switch memory states between memory on and memory off. When this function is activated,
Memory will be displayed. If this function is not set, the unit will be under the “Off” state after power
failure and then power recovery.
Memory recovery: If this function has been set for the wired controller, the wired controller after
power failure will resume its original running state upon power recovery. Memory contents: On/
Off,Mode, set temperature, set fan speed and Lock function.
4 Installation and Dismantlement
4.1 Connection of the Signal Line of the Wired Controller
Ɣ2SHQWKHFRYHURIWKHHOHFWULFFRQWUROER[RIWKHLQGRRUXQLW
Ɣ/HWWKHVLQJOHOLQHRIWKHZLUHGFRQWUROOHUWKURXJKWKHUXEEHUULQJ
Ɣ&RQQHFWWKHVLJQDOOLQHRIWKHZLUHGFRQWUROWRWKHSLQVRFNHWRIWKHLQGRRUXQLW3&%
Ɣ7LJKWHQWKHVLJQDOZLUHZLWKWLHV
Ɣ7KHFRPPXQLFDWLRQGLVWDQFHEHWZHHQWKHPDLQERDUGDQGWKHZLUHGFRQWUROOHUFDQEHXSWR
20 meters ( the standard distance is 8 meters)
4.2 Installation of the Wired Controller
PVC Pipe
1
3 4 52
Fig.4.1 Accessories for the Installation of the Wired Controller
Table 4.1
No.12345
Front Panel
of the Wired
Controller
Screw
ST 2.9X6*
Name
*Not included
Socket box
embedded
in the wall
*
Back-plate of
the Wired
Controller
Screw
M4X25
*
12
Page 45
Wired Controller IS-TT850
1
7
8 9
2
3 4
6
5
10
Fig.4.2
Fig.4.2 shows the installation steps of the wired controller, but there are some issues that need
your attention.
1) Prior to the installation, please firstly cut off the power supply of the wire buried in the
installation hole, that is, no operation is allowed with electricity during the whole installation.
2) Pull out the four-core twisted pair line from the installation holes and then let it go through
the rectangular hole behind the back-plate of the wired controller.
6WLFNWKHVROHSODWH RIWKHZLUHGFRQWUROOHUWRWKHZDOO RYHUWKHLQVWDOODWLRQKROHDQG WKHQ¿[ LW
with screws M4X25.
4) Insert the four-core twisted pair line into the slot of the wired controller and then buckle the
front panel and the back-plate of the wired controller together.
)LQDOO\¿[WKHIURQWSDQHODQGWKHVROHSODWHRIWKHZLUHGFRQWUROOHUWLJKWO\E\VFUHZV67;
CAUTION!
Please pay special attention to the followings during the connection to avoid the malfunction of
the air conditioning unit due to electromagnetic interference.
ķ
Separate the signal and communication lines of the wired controller from the power cord
13
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Wired Controller IS-TT850
and connection lines between the indoor and outdoor unit, with a minimum interval of 20cm,
otherwise the communication of the unit will probably work abnormally.
ĸ
If the air conditioning unit is installed where is vulnerable to electromagnetic
interference,then the signal and communication lines of the wired controller must be the shielding
twisted pair lines.
4.3 Dismantlement of the Wired Controller
1 3 42
5 Errors Display
If there is an error occurring during the operation of the system, the error code will be displayed
on the LCD, as show in Fig.5.1. If multi errors occur at the same time, their codes will be displayed
circularly.
Note: In event of any error, please turn off the unit and contact the professionally skilled
personnel.
Fig.5.1
14
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Wired Controller IS-TT850
Table 5.1 Meaning of Each Error
Error
Return air temperature sensor open/
short circuited
evaporator temperature sensor open/
short circuited
Indoor unit liquid valve temperature
sensor open/short circuited
Indoor gas valve temperature sensor
open/ short circuited
IPM temperature sensor open/short
circuited
Outdoor ambient temperature sensor
open/ short circuited
Outdoor unit condenser mid-tube
temperature sensor open/short circuited
Discharge temperature sensor open/
short circuited
Indoor and outdoor communication error E6 Compressor startup failure Lc
DC bus under-voltage protection PL High discharge temperature protection E4
DC bus over-voltage protection PH Overload protection E8
Compressor phase current sensing
circuit error
Compressor demagnetization protection HE Over phase current protection P5
PFC protection Hc Compressor desynchronizing H7
IPM Temperature Protection P8 IPM Current protection H5
Over-power protection L9
System charge shortage or blockage
protection
Capacitor charging error PU
High pressure protection E1
Low pressure protection E3
Compressor stalling LE
Over-speeding LF
Drive board temperature sensor error PF Indoor unit full water error E9
AC contactor protection P9 Anti-freezing protection E2
Temperature drift protection PE AC input voltage abnormal PP
Sensor connection protection Pd Whole unit current sensing circuit error U5
DC bus voltage drop error U3 4-way valve reversing error U7
Outdoor fan 1 error protection L3 Motor stalling H6
Outdoor fan 2 error protection LA PG motor zero-crossing protection U8
Error
Code
F1 Drive board communication error P6
F2 Compressor overheating protection H3
b5 Indoor and outdoor units unmatched LP
Communication line misconnected or
b7
expansion valve error
P7 5XQQLQJPRGHFRQÀLFW E7
F3 Pump-down Fo
F4 Jumper error C5
F5 Forced defrosting H1
U1 Whole unit over-current protection E5
Compressor phase loss/reversal
protection
Frequency restricted/reduced with whole
F0
unit current protection
Frequency restricted/reduced with IPM
current protection
Frequency restricted/reduced with high
discharge temperature
Frequency restricted/reduced with anti-
freezing protection
Frequency restricted/reduced with
overload protection
Frequency restricted/reduced with IPM
temperature protection
Error
Error
Code
dn
Ld
F8
En
F9
FH
F6
EU
15
Page 48
Technical Support
Before calling technical support, please see the troubleshooting guide above. You may also visit
our website at www.impecca.com for answers to Frequently Asked Questions and to contact us.
Email: support@impecca.com
Phone: +1 866–954–4440
Web: www.impecca.com
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