Mitsubishi Electronics PCA-AKA4 User Manual
Air-Conditioners
PCA-A•KA4
INSTALLATION MANUAL
For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing
the air-conditioner unit.
MANUEL D’INSTALLATION
Avant d’installer le climatiseur, lire attentivement ce manuel, ainsi que le manuel d’installation de l’appareil extérieur pour une utilisation sûre et correct.
MANUAL DE INSTALACIÓN
Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de
aire acondicionado.
FOR INSTALLER
POUR L’INSTALLATEUR
PARA EL INSTALADOR
English
Français
Español
Contents
1. Safety precautions .....................................................................................2
2. Installation location .................................................................................... 3
3. Installing the indoor unit ............................................................................3
4. Installing the refrigerant piping .................................................................. 5
1. Safety precautions
Before installing the unit, make sure you read all the “Safety precau-
►
tions”.
Please report to your supply authority or obtain their consent before
►
connecting this equipment to the power supply system.
Warning:
Describes precautions that must be observed to prevent danger of injury or
death to the user.
Caution:
Describes precautions that must be observed to prevent damage to the unit.
Warning:
• Ask a dealer or an authorized technician to install the unit.
• For installation work, follow the instructions in the Installation Manual and
use tools and pipe components specifically made for use with refrigerant
specified in the outdoor unit installation manual.
• The unit must be installed according to the instructions in order to mini
mize the risk of damage from earthquakes, typhoons, or strong winds. An
incorrectly installed unit may fall down and cause damage or injuries.
The unit must be securely installed on a structure that can sustain its weight.
•
• If the air conditioner is installed in a small room, measures must be taken
to prevent the refrigerant concentration in the room from exceeding the
safety limit in the event of refrigerant leakage. Should the refrigerant leak
and cause the concentration limit to be exceeded, hazards due to lack of
oxygen in the room may result.
5. Drainage piping work .................................................................................6
6. Electrical work ...........................................................................................6
7. Test run ....................................................................................................10
8. Easy maintenance function (For wired remote controller only) ............... 12
After installation work has been completed, explain the “Safety Precautions,” use,
and maintenance of the unit to the customer according to the information in the
Operation Manual and perform the test run to ensure normal operation. Both the
Installation Manual and Operation Manual must be given to the user for keeping.
These manuals must be passed on to subsequent users.
: Indicates a part which must be grounded.
Warning:
Carefully read the labels affixed to the main unit.
• Ventilate the room if refrigerant leaks during operation. If refrigerant comes
into contact with a flame, poisonous gases will be released.
• All electric work must be performed by a qualified technician according to
local regulations and the instructions given in this manual.
• Use only specified cables for wiring.
-
• The terminal block cover panel of the unit must be firmly attached.
• Use only accessories authorized by Mitsubishi Electric and ask a dealer or
an authorized technician to install them.
• The user should never attempt to repair the unit or transfer it to another
location.
• After installation has been completed, check for refrigerant leaks. If refrigerant leaks into the room and comes into contact with the flame of a heater
or portable cooking range, poisonous gases will be released.
1.1. Before installation (Environment)
Caution:
• D
o not use the unit in an unusual environment. If the air conditioner is installed in areas exposed to steam, volatile oil (including machine oil), or sulfuric gas, areas exposed to high salt content such as the seaside, the performance can be significantly reduced and the internal parts can be damaged.
• Do not install the unit where combustible gases may leak, be produced,
flow, or accumulate. If combustible gas accumulates around the unit, fire or
explosion may result.
• Do not keep food, plants, caged pets, artwork, or precision instruments in
the direct airflow of the indoor unit or too close to the unit, as these items
can be damaged by temperature changes or dripping water.
1.2. Before installation or relocation
Caution:
• Be extremely careful when transporting the units. Two or more persons are
needed to handle the unit, as it weighs 20 kg, 44 lbs or more. Do not grasp
the packaging bands. Wear protective gloves as you can injure your hands
on the fins or other parts.
• Be sure to safely dispose of the packaging materials. Packaging materials,
such as nails and other metal or wooden parts may cause stabs or other
injuries.
1.3. Before electric work
Caution:
• Be sure to install circuit breakers. If not installed, electric shock may result.
• For the power lines, use standard cables of sufficient capacity. Otherwise,
a short circuit, overheating, or fire may result.
• When installing the power lines, do not apply tension to the cables.
• When the room humidity exceeds 80% or when the drainpipe is clogged,
water may drip from the indoor unit. Do not install the indoor unit where
such dripping can cause damage.
• When installing the unit in a hospital or communications office, be prepared for noise and electronic interference. Inverters, home appliances,
high-frequency medical equipment, and radio communications equipment
can cause the air conditioner to malfunction or breakdown. The air conditioner may also affect medical equipment, disturbing medical care, and
communications equipment, harming the screen display quality.
• Thermal insulation of the refrigerant pipe is necessary to prevent condensation. If the refrigerant pipe is not properly insulated, condensation will be
formed.
Place thermal insulation on the pipes to prevent condensation. If the drain-
•
pipe is installed incorrectly, water leakage and damage to the ceiling, floor,
furniture, or other possessions may result.
• Do not clean the air conditioner unit with water. Electric shock may result.
• Tighten all flare nuts to specification using a torque wrench. If tightened
too much, the flare nut can break after an extended period.
• Be sure to ground the unit. If the unit is not properly grounded, electric
shock may result.
• Use circuit breakers (ground fault interrupter, isolating switch (+B fuse),
and molded case circuit breaker) with the specified capacity. If the circuit
breaker capacity is larger than the specified capacity, breakdown or fire
may result.
1.4. Before starting the test run
Caution:
• Turn on the main power switch more than 12 hours before starting operation. Starting operation just after turning on the power switch can severely
damage the internal parts.
• Before starting operation, check that all panels, guards and other protective parts are correctly installed. Rotating, hot, or high voltage parts can
cause injuries.
2
Do not operate the air conditioner without the air filter set in place. If the air
•
filter is not installed, dust may accumulate and breakdown may result.
• Do not touch any switch with wet hands. Electric shock may result.
• Do not touch the refrigerant pipes with bare hands during operation.
• After stopping operation, be sure to wait at least five minutes before turn
ing off the main power switch. Otherwise, water leakage or breakdown may
result.
-
2. Installation location
Min. 11-13/16
W
Min. 10-5/8
26-3/4
Fig. 2-1
Max. 9-13/16
3. Installing the indoor unit
70+6
Fig. 3-1
A
3-1/812-5/8
26-3/4
9-5/16
Min. 19-11/16
9-5/16
2.1. Outline dimensions (Indoor unit) (Fig. 2-1)
Select a proper position allowing the following clearances for installation and maintenance.
(inch)
Models W
A24, 30 50-3/8
A36, 42 63
Warning:
Mount the indoor unit on a ceiling strong enough to withstand the weight of
the unit.
2.2. Outline dimensions (Outdoor unit)
Refer to the outdoor unit installation manual.
3.1. Check the indoor unit accessories (Fig. 3-1)
The indoor unit should be supplied with the following accessories
(contained in the inside of the intake grille).
Accessory name Q’ty
Washer 4 pcs
Pipe cover 1 pc Large size (For gas tubing)
Pipe cover 1 pc Small size (For liquid tubing)
Band 4 pcs
Joint socket 1 pc Marked with “UNIT”
Socket cover 1 pc
Drain tubing cover 1 pc
3.2. Preparation for installation (Fig. 3-2)
3.2.1. Suspension bolt installing spacing
Models A B
A24,30 48-11/16 50-3/8
A36,42 61-5/16 63
(inch)
1/16
7-1/21-13/16
9-3/16
9-11/16
B
1/4
2-15/16
Fig. 3-2
3-1/8 Ø2-9/16 Ø3-15/16
1/16
3-3/8
3-3/8
1/16
4-15/16
7-1/2
5-7/16
6-5/167-1/2
4-15/16
7-1/16
7-7/8
9-3/16
9-11/16
2-3/4
1-13/16
Front side outlet
Left side outlet
Right side outlet
Independent piece (Removable)
Right drain tubing
In case of the rear pipe arrangement, make sure to remove the shaded portions
from the independent piece. Then put the independent piece back in initial
position.
(The heat exchanger might be clogged because of dust)
Left drain tubing
Gas tubing
Liquid tubing
Rubber plug
with Joint socket
3.2.3. Selection of suspension bolts and tubing positions (Fig. 3-3)
Caution:
Install the indoor unit at least 8 ft. (2.4 m) above floor or grade level. For
appliances not accessible to the general public.
Using the pattern paper provided for installation, select proper positions for suspension bolts and tubing and prepare relative holes.
Pattern paper
Suspension bolt hole
Indoor unit width
Secure the suspension bolts or use angle stock braces or square timbers for bolt
installation.
Use inserts of 220-230 lbs. each.
Use suspension bolts of W 3/8 or M10 in size.
3.2.2. Refrigerant and drain tubing location
Fig. 3-3
3
3. Installing the indoor unit
A
B
Fig. 3-4
3.2.4. Fresh air intake hole (Fig. 3-4)
At the time of installation, use the duct holes (knock out) located at the positions
shown in following diagram, as and when required.
Indoor unit
Fresh air intake hole (knock out hole)
Filter
in. (mm)
C
ABC
10-3/16
(259.5)
ø 3-15/16
(ø 100)
4-5/16
(109)
3.2.5. Indoor unit preparation (Fig. 3-5)
1. Install the suspending bolts. (Procure the W 3/8 or M10 bolts locally.)
Predetermine the length from the ceiling ( within 3-15/16 in. (100 mm)).
Ceiling surface Suspending bolt Suspending bracket
2. Remove the intake grille.
Slide the intake grille holding knobs (at 2 or 3 locations) backward to open the
intake grille.
3. Remove the side panel.
Remove the side panel holding screws (1 in each side, right and left) then slide
the side panel forward for removal.
Intake grille
Intake grille holding knob
Slide
Hinge
Pushing the hinge, pull out the intake grille.
Forcing open the intake grille or opening it to an angle of more than 120° may
damage the hinges.
Slide the side panel forward.
Side panel
Remove the side panel holding screws.
Remove the protective vinyl of vane.
Fig. 3-5
0
/ 5
2
5
/
3
(inch)
1
25/64-25/32
3
0
22
4
3
5
Fig. 3-6
1/4-15/32
3.3. Installing the indoor unit (Fig. 3-6)
Use a proper suspending method depending on the presence or absence of ceiling
materials as follows.
In the presence of ceiling materials1 Ceiling
In the absence of ceiling materials2 Suspending bolt
Suspending bracket
/
Unit
0
1) Directly suspending the unit
Installing procedures
1. Install the washer (supplied with the unit) and the nuts (to be locally procured).
2. Set (hook) the unit through the suspending bolts.
3. Tighten the nuts.
Check the unit installing condition.
• Check that the unit is horizontal between the right and left sides.
• Check that the front and the rear of suspending brackets are horizontal.
(To keep drainage, the unit is inclined to the suspending brackets. The unit
slopes continuously downward from the front to the rear is the right installation
position.)
2)
Installing the suspending bracket first onto the ceiling (Fig. 3-7)
Installing procedures
1. Remove the suspending brackets and U-shaped washers from the unit.
2. Adjust the suspending bracket holding bolts on the unit.
3. Attach the suspending brackets to the suspending bolts.
4. Check that the suspending brackets are horizontal (front and rear/right and left).
5. Set (hook) the unit to the suspending brackets.
6. Tighten fixed bolts of the suspending brackets.
Be sure to install the U-shaped washers.
+
Suspending bracket holding bolt
Unit
U-shaped washer
Suspending bolt
Washer
Double nuts
Washer
3
Washer (Local procurement)
4
Double nuts
5
A24,30 47 - 5/10
A36,42 59 - 7/8
(inch)
Fig. 3-7
4
4. Installing the refrigerant piping
45 2
A
90 0.5
R1/64 to R1/32
Fig. 4-1
Flare cutting dimensions in. (mm)
Copper pipe O.D.
1/4” (ø6.35) 11/32-23/64 (8.7 - 9.1)
3/8" (ø9.52) 1/2-33/64 (12.8 - 13.2)
1/2" (ø12.7) 41/64-21/32 (16.2 - 16.6)
5/8" (ø15.88) 49/64-25/32 (19.3 - 19.7)
3/4" (ø19.05) 29/32-59/64 (22.9 - 23.3)
Flare dimensions
øA dimensions
B
Die
Copper pipe
Fig. 4-2
in. (mm)
Copper pipe O.D.
1/4” (ø6.35) 0-1/64 (0 - 0.5)
3/8" (ø9.52) 0-1/64 (0 - 0.5)
1/2" (ø12.7) 0-1/64 (0 - 0.5)
5/8" (ø15.88) 0-1/64 (0 - 0.5)
3/4" (ø19.05) 0-1/64 (0 - 0.5)
B
Flare tool for R410A
Clutch type
4.1. Precautions
For devices that use R410A refrigerant
• Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigeration oil applied to the flared sections.
• Use C1220 copper phosphorus for copper and copper alloy seamless
pipes, to connect the refrigerant pipes. Use refrigerant pipes with the thicknesses specified in the table below. Make sure the insides of the pipes are
clean and do not contain any harmful contaminants such as sulfuric compounds, oxidants, debris, or dust.
Warning:
When installing or moving the air conditioner, use only the specified refrigerant (R410A) to charge the refrigerant lines. Do not mix it with any other refrigerant and do not allow air to remain in the lines. Air enclosed in the lines can
cause pressure peaks resulting in a rupture and other hazards.
in. (mm)
A24, 30, 36, 42
Liquid pipe 3/8" (ø9.52) thickness 1/32" (0.8)
Gas pipe 5/8" (ø15.88) thickness 3/64" (1.0)
• Do not use pipes thinner than those specified above.
4.2. Connecting pipes (Fig. 4-1)
• When commercially available copper pipes are used, wrap liquid and gas pipes
with commercially available insulation materials (heat-resistant to 212 °F (100 °C)
or more, thickness of 1/2 in. (12 mm) or more).
• The indoor parts of the drain pipe should be wrapped with polyethylene foam insulation materials (specific gravity of 0.03, thickness of 23/64 in. (9 mm) or more).
• Apply thin layer of refrigerant oil to pipe and joint seating surface before tightening
flare nut.
• Use 2 wrenches to tighten piping connections.
• Use refrigerant piping insulation provided to insulate indoor unit connections. Insulate carefully.
Flare nut tightening torque
Copper pipe O.D.
(mm, inch)
ø6.35, 1/4 17, 43/64 14-18, 10-13
ø6.35, 1/4 22, 7/8 34-42, 25-30
ø9.52, 3/8 22, 7/8 34-42, 25-30
ø12.7, 1/2 26, 1-3/64 49-61, 35-44
ø12.7, 1/2 29, 1-9/64 68-82, 49-59
ø15.88, 5/8 29, 1-9/64 68-82, 49-59
ø15.88, 5/8 36, 1-27/64 100-120, 71-86
ø19.05, 3/4 36, 1-27/64 100-120, 71-86
Apply refrigerating machine oil over the entire flare seat surface.
Use correct flare nuts meeting the pipe size of the outdoor unit.
Flare nut O.D.
(mm, inch)
Tightening torque
(N-m, ft.lbs)
Fig. 4-3
4.3. Indoor unit (Fig. 4-3)
Installing procedures
1. Slide the supplied pipe cover over the gas tubing until it is pressed against the
sheet metal inside the unit.
2. Slide the provided pipe cover over the liquid tubing until it is pressed against
the sheet metal inside the unit.
3. Tighten the pipe covers and at the both ends 3/4 in. (20 mm) with the supplied bands .
Gas tubing
Liquid tubing
Band
Pipe cover
Pipe cover
Press the pipe cover against the sheet metal.
Refrigerant tubing heat insulating material
4.4. For twin combination
Refer to the outdoor unit installation manual.
5
5. Drainage piping work
Fig. 5-2
• For left side tubing, be sure to insert the rubber plug into the right drain port. (Fig.
5-1)
• Use VP-20 (O.D. ø26 (1”) PVC TUBE) for drain piping and provide 1/100 or more
downward slope.
• After completion of work, check that correct drain is available from the outfl ow
port of the drain tubing.
Drain pan
Plug
Insert the driver etc.in the plug deeply.
Fig. 5-1
Installing procedures (Fig. 5-2)
1. Attach the joint socket supplied with the unit to the drain port on the unit with a
vinyl chloride adhesive.
2. Fasten the socket cover supplied with the unit to the joint socket .
3. Attach the fi eld drain tubing (VP-20) to the joint socket with a vinyl chloride
adhesive.
4. Wrap the drain tubing cover supplied with the unit. (Seam taping)
Drain pan
Drain tubing
Socket cover
Joint socket
Drain tubing cover
Insertion length 1-15/32 in. (37mm)
5. Check for correct drainage. (Fig. 5-3)
* Fill the drain pan with water of about 1/4 gal (1 L) from the air outlet.
6. Electrical work
Fig. 5-3
6.1. Electric wiring
Wiring procedures
1. Remove the tapping screw then remove the beam.
2. Remove the (2) tapping screws then remove the electric part cover .
3. For radio frequency interface.
Connect the electric cord of radio frequency interface securely to CN105 (RED)
on indoor controller board.
For wired remote controller
Connect the electric wires securely to the corresponding terminals (Fig. 6-1)
4. Replace the removed parts.
5. Tie the electric wires with the local wiring clamp located in the right side of the
junction box.
Cover
Set screws (2 pcs)
Set screws (Beam)
Wiring clamp
Indoor controller board
Wire service entrance
Terminal block for indoor and outdoor units connection
Grounding cable connector
Terminal block for wired remote controller
Secure with the wiring clamp.
7
7
Fig. 6-1
CN105
(RED)
Fig. 6-2
6
6. Electrical work
6.1.1. Indoor unit power supplied from outdoor unit
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
1 System
1:1 System
L1
L2
GR
S1
S2
S3
*
Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.
CN105
(RED)
S1
S2
S3
1
2
Outdoor unit power supply
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Wired remote controller
Indoor unit
Indoor unit earth
Indoor controller board
Radio frequency interface for RF thermostat
Indoor unit model PCA-A24,30 PCA-A36, 42
Minimum circuit ampacity 1A 2A
Maximum rating of overcurrent protective device 15A
Indoor unit-Outdoor unit *1 3 × AWG16 (polar)
Indoor unit earth 1 × Min. AWG16
× size
Wiring
Wire No.
Wired remote controller-Indoor unit *2 2 × AWG22 (Non-polar, unshielded)
Indoor unit-Outdoor unit S1-S2 *3 AC 208/230 V
Indoor unit-Outdoor unit S2-S3 *3 DC24 V
rating
Circuit
Wired remote controller-Indoor unit *3 DC12 V
*1. Max. 50 m, 165 ft
*2. The 10 m, 30 ft wire is attached in the wired remote controller accessory. Max. 500 m, 1500 ft
*3. The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulataed by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Use copper supply wires.
3. Use wires rated 600V or more for the power supply cables and the indoor unit/outdoor unit connecting cables.
4. Install an earth longer than other cables.
6.2. Remote controller
6.2.1. For wired remote controller
1) 2 wired remote controllers setting
If 2 wired remote controllers are connected, set one to “Main” and the other to “Sub”.
For setting procedures, refer to “Function selection of remote controller” in the operation manual for the indoor unit.
7
6. Electrical work
MODEL SELECT
ON/OFF TEMP
FAN
VANE
MODE
CHECK
LOUVER
TEST RUN
RESETSET CLOCK
Fig. 6-3
AUTO STOP
AUTO START
h
min
6.2.2. For IR wireless remote controller
1) Installation area
• Area in which the IR wireless remote controller is not exposed to direct sunshine.
• Area in which there is no nearby heating source.
• Area in which the IR wireless remote controller is not exposed to cold (or hot)
winds.
• Area in which the IR wireless remote controller can be operated easily.
• Area in which the IR wireless remote controller is beyond the reach of children.
2) Setting (Fig. 6-3)
Insert batteries.
Press the SET button with something sharp at the end.
MODEL SELECT
blinks and Model No. is lighted.
Press the temp
buttons to set the Model No.
If you mistook the operation, press the ON/OFF
button and operate again
from procedure .
Press the SET button with something sharp at the end.
3)
and Model No. are lighted for 3 seconds, then turned off.
MODEL SELECT
Indoor Outdoor
PCA
PUZ 001
PUY 033
Model No.
Assigning a IR wireless remote controller to each unit
Each unit can be operated only by the assigned IR wireless remote controller.
Make sure each pair of an indoor unit PC board and a IR wireless remote controller
is assigned to the same pair No.
MODEL SELECT
Press the SET button with something sharp at the end.
Start this operation from the status of IR wireless remote controller display
turned off.
4) IR wireless remote controller pair number setting operation (Fig. 6-4)
MODEL SELECT
blinks and Model No. is lighted.
min
button twice continuously. Pair No. “0” blinks.
buttons to set the pair number you want to set.
If you mistook the operation, press the ON/OFF
from procedure .
Pair No. of IR wireless remote controller Indoor PC board
0 Initial setting
1 Cut J41
2 Cut J42
3-9 Cut J41, J42
button and operate again
ON/OFF TEMP
FAN
VANE
MODE
LOUVER
CHECK
TEST RUN
RESETSET CLOCK
AUTO STOP
AUTO START
h
min
Press the
Press the temp
Press the SET button with something sharp at the end.
Set pair number is lighted for 3 seconds then turned off.
Fig. 6-4
6.3. Function settings
6.3.1 Function setting on the unit (Selecting the unit functions)
Mode number
Setting number
Refrigerant address
F
E
G
TEMP.
MENU
MONITOR/SET
BACK DAY
PAR-21MAA
ON/OFF
CLOCK
OPERATION
ON/OFF
CHECK
CLEAR
FILTER
A
TEST
B
Unit number
DC
Fig. 6-5
1) For wired remote controller (Fig. 6-5)
Changing the power voltage setting
• Be sure to change the power voltage setting depending on the voltage used.
Go to the function setting mode.
Switch OFF the wired remote controller.
Press the and buttons simultaneously and hold them for at least 2
seconds. FUNCTION will start to flash.
Use the button to set the refrigerant address () to 00.
Press and [--] will start to flash in the unit number () display.
Use the button to set the unit number () to 00.
Press
the MODE button to designate the refrigerant address/unit number. [--]
will flash in the mode number () display momentarily.
Press the buttons to set the mode number () to 04.
Press the button and the current set setting number () will flash.
Use
button to switch the setting number in response to the power supply
the
voltage to be used.
Power supply voltage
230 V : setting number = 1
208 V : setting number = 2
Press the MODE button and mode and the setting number () and () will
change to being on constantly and the contents of the setting can be confirmed.
Press the FILTER and TEST RUN buttons simultaneously for at least two
seconds. The function selection screen will disappear momentarily and the air
conditioner OFF display will appear.
8
6. Electrical work
CHECK
ON/OFF TEMP
E
AUTO STOP
AUTO START
h
min
C,D
A
B
FAN
VANE
MODE
LOUVER
CHECK
F
TEST RUN
RESETSET CLOCK
Fig. 6-6
CHECK
2) For IR wireless remote controller (Fig. 6-6)
CHECKCHECK
Changing the power voltage setting
• Be sure to change the power voltage setting depending on the voltage used.
Go to the function select mode
Press the
CHECK
button twice continuously.
(Start this operation from the status of IR wireless remote controller display turned off.)
is lighted and “00” blinks.
CHECK
Press the temp
CHECK
controller toward the receiver of the indoor unit and press the
Setting the unit number
Press the temp
button once to set “50”. Direct the IR wireless remote
h
button .
button and to set the unit number “00”. Direct the IR
wireless remote controller toward the receiver of the indoor unit and press the
min
button .
Selecting a mode
Enter 04 to change the power voltage setting using the
Direct the IR wireless remote controller toward the receiver of the indoor unit
and press the
h
button .
and buttons.
Current setting number: 1 = 1 beep (one second)
2 = 2 beeps (one second each)
3 = 3 beeps (one second each)
Selecting the setting number
Use the
(230 V). Direct the IR wireless remote controller toward the sensor of the indoor
unit and press the
To select multiple functions continuously
and buttons to change the power voltage setting to 01
h
button .
Repeat steps and to change multiple function settings continuously.
Complete function selection
Direct the IR wireless remote controller toward the sensor of the indoor unit and
press the
button .
Note: Whenever changes are made to the function settings after installation
or maintenance, be sure to record the changes with a mark in the
“Setting” column of the Function table.
6.3.2 Function setting on the remote controller
For details on how to operate the remote controller, refer to the appropriate operation manual included with each remote controller.
Function table
Select unit number 00
Mode Settings
Power failure automatic recovery Not available
Indoor temperature detecting Indoor unit operating average
LOSSNAY connectivity Not Supported
Power voltage 230 V
Select unit numbers 01 to 03 or all units (AL [wired remote controller]/07 [wireless remote controller])
Mode Settings
Filter sign 100Hr
Fan speed Silent
Up/down vane setting No vanes
When the power supply returns, the air conditioner will start 3 minutes later.
+
Available
Set by indoor unit’s remote controller 2
Wired remote controller’s internal sensor 3
Supported (indoor unit is not equipped with outdoor-air intake)
Supported (indoor unit is equipped with outdoor-air intake) 3
208 V 2Ο
2500Hr 2Ο
No filter sign indicator 3
Standard 2 Ο
High ceiling 3
Equipped with vanes (vanes angle setup )2Ο
Equipped with vanes (vanes angle setup )
Wired remote controller
(RF thermostat)
+
Wired remote controller
(RF thermostat)
Mode no.
01
(101)
02
(—)
03
(103)
04
(104)
Mode no.
07
(107)
08
(108)
11
(111 )
Setting no.
Initial setting
1
2Ο
1Ο
1Ο
2
1
Setting no.
Initial setting
1
1
1
3
setting
setting
9
7. Test run
7.1. Before test run
► After completing installation and the wiring and piping of the indoor and
outdoor units, check for refrigerant leakage, looseness in the power supply or control wiring, wrong polarity, and no disconnection of one phase
in the supply.
Use a 500-volt megohmmeter to check that the resistance between the
►
power supply terminals and ground is at least 1.0 MΩ.
7.2. Test run
Refer to the installation manual that comes with each remote controller for details.
7.3. Self-check
Refer to the installation manual that comes with each remote controller for details.
RF thermostat is not established.
• Refer to the following tables for details on the check codes. (IR wireless remote controller)
[Output pattern A]
Beeper sounds
OPERATION
INDICATOR
lamp blinking
pattern
[Output pattern B]
Beeper sounds
OPERATION
INDICATOR
lamp blinking
pattern
Beep
Off
Self-check
starts
(Start signal
received)
Self-check
starts
(Start signal
received)
Approx. 2.5 sec.On0.5 sec.On0.5 sec.On0.5 sec.
Beep Beep Beep Beep Beep Beep Beep
Off
Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.On0.5 sec.
Beep Beep Beep Beep Beep Beep
1st2nd3
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “P5”)
rd
Number of blinks/beeps in pattern indicates the check
code in the following table (i.e., n=5 for “U2”)
th
n
On
0.5 sec.
1st2nd3
Approx. 2.5 sec.On0.5 sec.On0.5 sec.
► Do not carry out this test on the control wiring (low voltage circuit) termi
Do not use the air conditioner if the insulation resistance is less than 1.0 MΩ.
Off
rd
nals.
Warning:
nd
1st2
Number of blinks/beeps in pattern indicates
the check code in the following table
th
n
On
0.5 sec.
· · · Repeated
Off
Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.
nd
1st2
Number of blinks/beeps in pattern indicates
the check code in the following table
· · · Repeated
-
[Output pattern A] Errors detected by indoor unit
Wired remote
IR wireless remote controller
controller
RF thermostat
Beeper sounds/OPERATION
INDICATOR lamp blinks
Check code
(Number of times)
1 P1 Intake sensor error
2
P2 Pipe (TH2) sensor error
P9 Pipe (TH5) sensor error
3 E6, E7 Indoor/outdoor unit communication error
4 P4 Drain sensor error / Float switch connector open
5
P5 Drain pump error
PA Forced compressor error
6 P6 Freezing/Overheating protection operation
7 EE Communication error between indoor and outdoor units
8 P8 Pipe temperature error
9 E4 Remote controller signal receiving error
10 — —
11 — —
12 Fb Indoor unit control system error (memory error, etc.)
No sound E0, E3 Remote controller transmission error
No sound E1, E2 Remote controller control board error
No sound – – – – No corresponding
Symptom Remark
10
7. Test run
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
IR wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinks
(Number of times)
1 E9 Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
2 UP Compressor overcurrent interruption
3 U3, U4 Open/short of outdoor unit thermistors
4 UF Compressor overcurrent interruption (When compressor locked)
5 U2 Abnormal high discharging temperature/49C worked/insufficient refrigerant
6 U1, Ud Abnormal high pressure (63H worked)/Overheating protection operation
7 U5 Abnormal temperature of heat sink
8 U8 Outdoor unit fan protection stop
9 U6 Compressor overcurrent interruption/Abnormal of power module
10 U7 Abnormality of super heat due to low discharge temperature
11 U9, UH
12 — —
13 — —
14 Others Other errors (Refer to the technical manual for the outdoor unit.)
If the beeper does not sound again after the initial 2 beeps to confirm the self-check start signal was received and the OPERATION INDICATOR lamp does
*1.
not come on, there are no error records.
*2. If the beeper sounds 3 times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial 2 beeps to confirm the self-check start signal was re-
ceived, the specified refrigerant address is incorrect.
• On IR wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp
• On wired remote controller
Check code displayed in the LCD.
• If the unit cannot be operated properly after test run, refer to the following table to find the cause.
Wired remote controller LED 1, 2 (PCB in outdoor unit
PLEASE WAIT
PLEASE WAIT → Error code
Display messages do not appear
even when operation switch is
turned ON
(operation lamp does not light up).
On the IR wireless remote controller with condition above, following phenomena take place.
No signals from the remote controller are accepted.
•
• Operation lamp is blinking.
• The buzzer makes a short ping sound.
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the indoor controller, refer to the following table.
LED 1 (power for microcomputer) Indicates whether control power is supplied. Make sure that this LED is always lit.
LED 2 (power for remote controller) Indicates whether power is supplied to the remote controller. This LED lights only in the case of
LED 3 (communication between indoor and outdoor units) Indicates state of communication between the indoor and outdoor units. Make sure that this LED
Wired remote
controller
RF thermostat
Check code
Symptom
For about 2 minutes
after power-on
Subsequent to about
2 minutes after
power-on
Symptom Remark
Abnormality such as overvoltage or voltage shortage and abnormal
synchronous signal to main circuit/Current sensor error
After LED 1, 2 are lighted, LED 2 is turned
off, then only LED 1 is lighted. (Correct
operation)
Only LED 1 is lighted. → LED 1, 2 blink.
Only LED 1 is lighted. → LED 1 blinks
twice, LED 2 blinks once.
the indoor unit which is connected to the outdoor unit refrigerant address “0”.
is always blinking.
•For about 2 minutes after power-on, operation of the remote
controller is not possible due to system start-up. (Correct
operation)
•Connector for the outdoor unit’s protection device is not connected.
Reverse or open phase wiring for the outdoor unit’s power
terminal block (L1, L2, GR)
•Incorrect wiring between indoor and outdoor units (incorrect
polarity of S1, S2, S3)
•Remote controller wire short
For details, check the LED
display of the outdoor controller
board.
Cause
11
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