Mitsubishi Electric PAR-20MAA Installation Manual

WT03254X01
GB
CITY MULTI Control System
and Mitsubishi Mr. SLIM Air Conditioners
MA Remote Controller PAR-20MAA
Installation Manual
This instruction manual describes how to install the MA Remote Controller for Mitsubishi Building Air Conditioning Systems, direct expansion type CITY
MULTI air conditioner indoor units ("–A"type and later), and Mitsubishi Mr. SLIM air conditioners. Please read this manual thoroughly and install the
remote controller accordingly. For information on how to wire and install the air conditioning units, refer to the installation manual for them.

1 Safety Precautions

Read these Safety Precautions and perform installation work accordingly.
The following two symbols are used to dangers that may be caused by incorrect use and their degree:
WARNING
This symbol denotes what could lead to serious injury or death if you misuse the PAR-20MAA.
CAUTION This symbol denotes what could lead to a personal injury or damage to your property if you misuse the PAR-20MAA.
After reading this installation manual, give it and the indoor unit installation manual to the end user.
The end user should keep this manual and the indoor unit installation manual in a place where he or she can see it at anytime. When someone moves
or repairs the PAR-20MAA, make sure that this manual is forwarded to the end user.
WARNING
Ask your dealer or technical representative to install the unit. Ensure that installation work is done correctly following this installa-
Any deficiency caused by your own installation may result in an electric shock tion manual.
or fire. Any deficiency caused by installation may result in an electric shock or fire.
Install in a place which is strong enough to withstand the weight of the All electrical work must be performed by a licensed technician, accord-
PAR-20MAA. ing to local regulations and the instructions given in this manual.
Any lack of strength may cause the PAR-20MAA to fall down, resulting in Any lack of electric circuit or any deficiency caused by installation may result
personal injury. in an electric shock or fire.
Firmly connect the wiring using the specified cables. Carefully check Do not move and re-install the PAR-20MAA yourself.
that the cables do not exert any force on the terminals. Any deficiency caused by installation may result in an electric shock or fire.
Improper wiring connections may produce heat and possibly a fire. Ask your distributor or special vendor for moving and installation.
Never modify or repair the PAR-20MAA by yourself. To dispose of this product, consult your dealer.
Any deficiency caused by your modification or repair may result in an electric
shock or fire.
Consult with your dealer about repairs.
CAUTION
Do not install in any place exposed to flammable gas leakage. Use standard wires in compliance with the current capacity.
Flammable gases accumulated around the body of PAR-20MAA may cause A failure to this may result in an electric leakage, heating or fire.
an explosion.
Do not touch any PCB (Printed Circuit Board) with your hands or with
Do not use in any special environment. tools. Do not allow dust to collect on the PCB.
Using in any place exposed to oil (including machine oil), steam and sulfuric Doing so may cause fire or an electric shock.
gas may deteriorate the performance significantly or give damage to the com-
Do not remove the insulation sheet on the PCB.
ponent parts.
Doing so may cause an electric shock.
Wire so that it does not receive any tension.
Do not touch any control button with your wet hands.
Tension may cause wire breakage, heating or fire.
Doing so may cause an electric shock or a malfunction.
Completely seal the wire lead-in port with putty etc.
Do not press any control button using a sharp object.
Any dew, moisture, insects entering the unit may cause an electric shock or a
Doing so may cause an electric shock or a malfunction.
malfunction.
Never contact the power supply with the control wiring terminals.
Do not wash with water.
Doing so will certainly cause the controller to catch fire.
Doing so may cause an electric shock or a malfunction.
When installing the remote controller in a hospital or communication
Do not install in any place at a temperature of more than 40°C or less
facility, take ample countermeasures against noise.
than 0°C or exposed to direct sunlight.
Inverters, emergency power supply generators, high-frequency medical equip-
Do not install in any steamy place such a bathroom or kitchen. ment, and wireless communication equipment can cause the remote control-
Avoid any place where moisture is condensed into dew. Doing so may cause ler to malfunction or to fail. Radiation from the remote controller may effect
an electric shock or a malfunction. communication equipment and prevent medial operations on the human body
or interfere with image transmission and cause noise.
Do not install in any place where acidic or alkaline solution or special
spray are often used.
Doing so may cause an electric shock or malfunction.

2 Confirming the Supplied Parts

Confirm that the box includes the following parts, in addition to this installation manual:
1. Remote controller (cover, body) ..................................................................................... 1
2. Remote control cord (10 m) ........................................................................................... 1
3. Cross recessed pan head screw (M4 × 30) ................................................................... 2 Remote controller cover
4. Wood screw (4.1 × 16, used for directly hooking to the wall) ......................................... 2
5. Caution label (in 10 languages) ..................................................................................... 1
(3) Up to two remote controllers can be connected to one group
• When two remote controllers are connected to one group, always set the master remote controller and subordinate remote controller.
• When only one remote controller is connected to one group, set it as the master controller. When two remote controllers are connected to one
group, set the master remote controller and subordinate remote controller. (For a description of how to set the master/subordinate switch, see
step 6 in section 4 How To Install .)
(4) Total length of remote controller wiring
• The remote controller can be wired up to 200 m. Procure 0.3 to 1.25 mm 3 , 2-core cable at the installation site.
CAUTION - The wiring cannot be connected to TB5 of the indoor unit of the same refrigerant system. If so connected, the system will not
operate normally.
- Remote controllers cannot be wired together. Only one wire can be connected to the remote controller terminal block.
- When connecting to TB5, connect up to two wires of the same size to one terminal block.
Simultaneous twin Simultaneous twin Standard 1:1
Standard 1:1
Refrigerant Refrigerant Refrigerant Refrigerant
a a a a
address=01
address=00 address=00 address=00
TB1 TB1 TB1 TB1
TB4 TB4 TB4 TB4 TB4 TB4
b b b b b b
a Outdoor unit
TB5 TB5 TB5 TB5 TB5 TB5
b Indoor unit
d Master Remote Controller
d d d e
e Subordinate remote controller
4 How To Install
External size
of remote
controller
1. Choose a place in which to install the remote controller (switch box).
Be sure to observe the following steps:
(1) Temperature sensors are provided with both the remote controller and the indoor units. When using the
30 mm
remote controller temperature sensor, the master remote controller detects the room temperature. Install
the master remote controller in a place where the average room temperature can be detected and which
is not affected by any heat source from direct sunlight or air blown from air conditioning units.
(For how to set the master and subordinate remote controller, see step 6 in section 4 How To Install .
For how to set the temperature sensor, refer to the Free Plan indoor unit installation manual. For Mr. Slim
air conditioners, see section 8 Function Selection of this installation manual.)
(2) When installing on either the switch box or the wall, allow extra space around the remote controller as
120 mm
shown in the figure at the right.
(When using the remote controller in combination with a Program timer, refer to the Program timer instal-
lation manual.)
NOTE: Make sure that there is no wiring or wire near the remote controller sensor. If there is, the remote controller cannot detect the exact room
temperature.
(3) Parts which must be supplied on site.
• Switch box for two units
• Thin-copper wiring pipe
• Lock nut and bushing 10
30 30
7 20
15 or less
46 10 Switch box two units
102 44
2. Seal the remote controller cord with putty in order to prevent the possible entry of dew, water droplets, cockroaches, other insects, etc.
When using the switch box When installing directly on the wall
• When installing on the switch box, seal the connections • When opening a hole using a drill for the remote controller cord (or
between the switch box and wiring pipe with putty. when taking the cord out of the back of the remote controller), seal the
hole with putty.
• When routing the cord via the portion cut off from the upper cover,
Wiring
similarly seal that portion with putty.
pipe
Wall
Lock nut Remote control
cord
Switch box
Seal around here
Bushing with putty.
Seal around here
with putty.
Remote control
cord For taking cord
out from back of
remote
For taking cord out of top of
controller
remote controller
3. Remove the remote controller cover.
• Insert a minus screwdriver into one of the open slots and move the screwdriver in the arrow direction.
CAUTION Do not turn the screwdriver in the slot. Doing so may damage the slot.

3 How To Wire Transmission Line

The wiring is different when the remote controller is connected to a CITY MULTI control system ("–A" type and later) and when it is connected to a Mr.
SLIM air conditioner (A control type). The wiring also differs with the system configuration. Check the system used.
1. Connecting to CITY MULTI control system
The numbers (1) to (4) in the figure correspond to items (1) to (4) in the following description.
Address=51
Group01 Group02 Group03
a
TB7 TB3 Address=01 Address=02 Address=03 Address=04 Address=09
b b b b c
TB5 TB15 TB5 TB15 TB5 TB15 TB5 TB15 TB5 TB15
(1) (1) (1)
(2)
d d e d
(2)
(3)
Address=55 (3) (3)
a
Address=08 Address=07 Address=06 Address=05
TB7 TB3
b b b b
f TB5 TB15 TB5 TB15 TB5 TB15 TB5 TB15
(1)
(1)
g
d e (2)
(3)
Group04
(1) Wiring from the remote controller
• Connect to the MA remote controller terminal block (TB15) on the indoor unit.
• The terminal block has no polarity. Connect to the symbols "A" and "B" on the terminal block.
(2) Operating in a group (Groups 03, and 04 above)
• Interconnect the MA remote controller terminal block (TB15) of the indoor units you want to operate as a group, and connect the MA remote
controller to that point.
• When also it in combination with a CITY MULTI control system as shown in the figure above, group setting at the system controller (central
controller in the figure above) is necessary.
(3) Number of connectable remote controllers (groups 02 and 04)
• A master remote controller and one subordinate remote controller, a total of two, can be connected to a group made up of indoor units.
(4) To interlock to a LOSSNAY, make the following settings using the remote controller. (For a description of how to set an interlock, see section

7 Ventilation Setting .)

Set the LOSSNAY address and the address of all the indoor units you want to interlock.
(5) Total length of remote controller wiring
• The remote controller can be wired up to 200 m. Procure 0.3 to 1.25 mm 3 , 2-core cable at the installation site.
CAUTION Remote controllers cannot be wired together. Only one wire can be connected to the remote controller terminal block.
NOTE: When interlocking the MA remote controller with a LOSSNAY, always set the address of all the indoor units in the group and the address
of the LOSSNAY. If this is not done, the LOSSNAY will not operate.
2. Connecting to Mr. SLIM air conditioner
The remote controller wiring depends on the system configuration. Check the system configuration. Wire the remote controller as shown in the
example below.
The numbers (1) to (3) in the figure correspond to items (1) to (3) in the following description.
[1] Connecting the remote controller for each refrigerant system (Standard 1:1, simultaneous twin, simultaneous triple, simultaneous four, indi-
vidual twin)
Simultaneous twin Simultaneous twin Individual twin
Refrigerant Refrigerant
a Refrigerant Refrigerant
a a
address=00 address=00 address=00 address=00
TB1 TB1 TB1 TB1
TB4 TB4 TB4 TB4 TB4
b b b b b
TB5 TB5 TB5
(1)
(1) (1)
(3) (3) (3) (3)
d d e d
[2] When grouping by different refrigerant systems
Standard 1:1 Simultaneous twin Simultaneous triple Individual twin
Refrigerant Refrigerant
Refrigerant address=02
a a Refrigerant address=01 a address=03 a
address=00
(Subordinate) (Subordinate)
(Master) (Subordinate)
TB1 TB1 TB1 TB1
TB4 TB4 TB4
TB4 TB4 TB4 TB4
b b b b b b b
TB5 (2) TB5 (2) TB5 (2) TB5
(1)
(1)
(3) (3)
d e
* Set the refrigerant address using the outdoor unit dip switches. (For more information, refer to the outdoor unit installation manual.)
* All the indoor units enclosed in are controlled as one group.
(1) Wiring from remote controller
• Connect to indoor unit TB5 (remote controller terminal block). (The terminal block has no polarity.)
• For simultaneous multi type, when mixing various types of indoor units, always connect the remote controller to the indoor unit with the most
Remote controller case
functions (wind velocity, vane, louver, etc.).
(2) When grouping with difference refrigerant systems
• Group using the remote controller wiring. Connect the remote controller to an arbitrary indoor unit of each refrigerant system you want to group.
• When mixing different types of indoor units in the same group, always make the outdoor unit connecting the indoor unit with the most
functions (wind velocity, vane, louver, etc.) the master unit (refrigerant address = 00). Also, when the master unit is the simultaneous
1
multi type, always satisfy the conditions of (1) above.
• The MA remote controller can control up to 16 refrigerant systems as one group.
4. Install the lower case on the switch box or directly on the wall.
When using the switch box
Remote control cord
Switch box for two units Cross recessed pan
head screw
(See 5 below)
Seal the remote control cord
lead-in hole with putty.
(See 2 above)
CAUTION Do not tighten the screws too tight. Doing so may deform or crack the lower cover.
NOTE: - Choose a flat plane for installation.
- Fasten the switch box at more than two places when installing directly on the wall.
- When reinstalling on the wall, fasten securely using anchors.
5. Connect the remote control cord to the remote controller terminal block. To indoor unit MA remote
controller or A controll
terminal block
There is no polarity.
Do not use crimp terminals to connect to remote controller terminal blocks. The terminals may contact the board and cause
CAUTION
trouble or contact the cover and damage the cover.
6. When using two remote controllers in one group, set the dip switches.
Extra space When using two remote controllers in one group, specify the main and sub remote controllers using dip switch No. 1 shown below.
around remote
• When connecting only one remote controller to one group, it is always the main remote controller. When connecting two remote controllers to one
controller
group, set one remote controller as the main remote controller and the other as the sub remote controller.
• The factory setting is "Main".
30 mm
Setting the dip switches
30 mm The dip switches are at the bottom of the remote controller. Remote controller Main/Sub and other
function settings are performed using these switches. Ordinarily, only change the Main/Sub setting
of SW1. (The factory settings are all "ON".)
SW No SW contents Main ON OFF
Remote controller
Temperature 1 Main Sub Set one of the two remote controllers at one group to "Main"
Main/Sub setting
sensor
When remote control- When you want to return to the timer mode when the power is restored after
2 Normally on Timer mode on
ler power turned on a power failure when a Program timer is connected, select "Timer mode".
Cooling/heating dis- When you do not want to display "Cooling" and "Heating" in the
3 Yes No
play in AUTO mode Auto mode, set to "No".
Intake temperature dis-
When you do not want to display the intake temperature, set to
4 Yes No
play
"No".
7. Wiring hole for installing directly on the wall (or open wiring)
• Cut off the shaded area from the upper cover using a knife, nippers, etc.
• Take out the remote control cord connected to the terminal block via this portion.
8. Install the cover to the remote controller. To remove the cover, insert a mi-
nus screwdriver into one of the
open slots, and move it in the di-
rection of the arrow shown in the
figure.
First, hook the cover to the two upper claws and then fit it to the remote controller.
CAUTION Press the cover until it snaps shut. If not, it may fall off. CAUTION Do not into turn the screwdriver in the slot. Doing so may damage the slot.
NOTE: A protection sheet is stuck to the operation section. Peel off this protection sheet before use.
9. Affix a caution label.
A caution label in English is supplied on the back surface of the control panel door. Affix another caution label in the language of a country where you
use the remote control over the English one.
5 How To Connect Optional Parts
• The exterior design for PAC-SC32PTA (Program timer) is different form the one for PAR-20MAA.
• When connecting a Program timer, connect a 5-core cable to the connector on the remote controller. (A 5-core cable is
supplied with the Program timer.)
• To route the cable, cut off the thin-wall portion.
• For wiring path convenience, install the Program timer to the left-hand side of the remote controller. When expansion is
expected, take into consideration remote controller space at the left-hand side.
For the operation method details, refer to the Program timer installation manual.
6 Test Run
1. Before making a test run, refer to the "Test Run" section of the
indoor unit installation manual. TEST RUN
TEMP.
2. Press the [TEST] button twice successively within three seconds. ON/OFF
Test run starts. FILTER
3. Stop the test run by pressing the [ON/OFF] button. CHECK TEST
TIMER SET
3 PAR-20MAA
4. If trouble occurred during the test run, refer to the "Test Run" sec-
tion of the indoor unit installation manual.
7 Ventilation Setting
Perform this operation when you want to register the LOSSNAY, confirm the registered units, or delete the
registered units controlled by the remote controller.
The following uses indoor unit address 05 and LOSSNAY address 30 as an example to describe the
setting procedure.
[Setting Procedure]
(4)
1 Stop the air conditioner using the remote controller A [ON/OFF] button.
Connect to
If the OFF display shown below does not appear at this time, step 2 cannot be performed.
TB15 on the
indoor unit.
2 Press and hold down the B [FILTER] and C [Louver] buttons at the same time for two
a Outdoor unit
seconds. The display shown below appears. The remote controller confirms the registered
b Indoor unit
LOSSNAY addresses of the currently connected indoor units.
c Lossnay unit
d Master Remote Controller
e Subordinate remote controller
FUNCTION
f Central controller
3 Registration confirmation result
g Power supply unit for transmission line
- The indoor unit address and registered LOSSNAY address are displayed alternately.
FUNCTION
<Indoor unit address and indoor unit display> <LOSSNAY address display and LOSSNAY display>
- When LOSSNAY are not registered
FUNCTION
4 If registration is unnecessary, end registration by pressing and holding down the B [FILTER] and C [Louver] buttons at the same time for two
seconds.
If a new LOSSNAY must be registered, go to step 1. Registration procedure . If you want to confirm another LOSSNAY, go to step 2. Confirmation
procedure. To delete a registered LOSSNAY, go to step 3. Deletion procedure .
< 1. Registration procedure >
5 Set the address of the LOSSNAY and the indoor unit connected by the remote controller you want to register using the D [TEMP. (
buttons. (01 to 50)
d e
6 Set the address of the LOSSNAY you want to register using the E [TIMER SET (
FUNCTION
Indoor unit address LOSSNAY address
7 Press the F [TEST] button, and register the set indoor unit address and LOSSNAY address.
- Registration end display
The indoor unit address and "IC" and LOSSNAY address and "LC" are alternately displayed.
FUNCTION
Connect to
- Registration error display
TB5 on the
If the address was not correctly registered, the indoor unit address and registered LOSSNAY address are alternately displayed.
indoor unit.
TB4
b
TB5
(1)
FUNCTION
Cannot be registered because the registered indoor unit or LOSSNAY does not exist.
(3) (3)
Cannot be registered because another LOSSNAY was registered at the registered indoor unit.
d e
< 2. Confirmation procedure >
8 Set the address of the indoor unit connected by the remote controller whose LOSSNAY you want to confirm using the D [TEMP.] (
Refrigerant buttons. (01 to 50)
address=04
(Subordinate)
TB1
a Outdoor unit
TB4 FUNCTION
b
b Indoor unit
<Indoor unit address>
(2) TB5
d Master Remote Controller 9 Press the G [Timer selection] button and confirm the LOSSNAY address registered at the set indoor unit address.
e Subordinate remote controller - Confirmation end display (When LOSSNAY is connected.)
The indoor unit address and "IC" and registered LOSSNAY address and "LC" are alternately displayed.
FUNCTION
- Confirmation end display (When LOSSNAY is not connected.)
FUNCTION
Registered indoor unit address does not exist.
2
FUNCTION
[Procedure] (Set only when change is necessary.)
When installing directly on the wall
1 Check the set contents of each mode. When the set contents of a mode were changed by function selection, the functions of that mode also change.
Remote control cord
Check the set contents as described in steps 2 to 7 and change the setting based on the entries in the Table 1 check field. For the factory settings, refer to the indoor unit installation manual.
(See 5 below)
2 Set the remote controller to Off.
Wood screw
Press and hold down the A [FILTER] and B [TEST] buttons at
the same time for two seconds or longer.
"FUNCTION" blinks for a while, then the remote controller display
changes to the display shown below.
Refrigerant address
display
* If the remote controller enters the OFF state after the "FUNCTION" and room temperature displays "
tion is probably abnormal. Make sure there are no noise sources near the transmission line.
NOTE: If you make a mistake during operation, end function selection by step ? and repeat selection from step 2.
4 Set the indoor unit address No.
Press the D [Timer selection] button. The unit address No.
display "– –" flashes.
AB
Unit address No. display
* When setting mode 1 to 3, set the unit address No. to "00".
* When setting modes 7 to 11:
- When setting for each indoor unit, set the unit address No. to "01-04".
- When batch setting for all indoor units, set the unit address No. to "AL".
5 Refrigerant address and unit address No. registration
Press the E [Mode selection] button. The refrigerant address and
unit address No. are registered.
ON
After a while, the mode No. display "– –" flashes.
1 2 3 4 Mode No. display
ON
1 2 3 4
Comment
* When " " flashes at the room temperature display, the selected re-
frigerant address is not in the system.
When "F" is displayed at the unit address No. display, and when it flashes
together with the refrigerant address display, the selected unit address
No. does not exist. Correctly set the refrigerant address and unit ad-
dress No. by repeating steps 2 and 3.
6 Mode No. selection
Select the mode No. you want to set with the F [TEMP. (
Mode No. display
Mode No. 02 = Room temperature detection position
7 Select the setting contents of the selected mode.
When the G [Timer selection] button is pressed, the current set-
ting No. flashes. Use this to check the currently set contents.
Setting No. display
Setting No. 1 = Simultaneous operation indoor units balance
8 The contents set at steps 3 to 7 are registered.
When the E [Mode selection] button is pressed, the mode No. and setting No. flash and registration begins. The flashing mode No. and
setting No. change to a steady light and setting ends.
* When "– –" appears at the mode No. and setting No. displays and "
Make sure there are no noise sources near the transmission line.
Program timer connector
9 To select more functions, repeat steps 3 to 8.
Operation mode display ? End function selection.
Timer stops test run after two hours. Press and hold down the A [FILTER] and B [TEST] buttons at the same time for two seconds or longer.
Piping temperature display After a while, the function selection display disappears and the remote controller returns to the air conditioner off display.
Displays "TEST RUN".
Stop test run by pressing the [ON/OFF] button.
During test run, the RUN lamp remains on.
* Do not operate the air conditioner from the remote controller for 30 seconds after the end of function selection.
[TEST] button
4
NOTE: When the functions of an indoor unit were changed by function selection after the end of installation, always indicate the set contents
by entering a or other mark in the appropriate check field of Table 1.
< 3. Deletion procedure >
Make this setting only when interlocked operation with LOSSNAY is necessary with CITY MULTI
Use this procedure when you want to delete registration of indoor units connected by the remote controller and LOSSNAY.
models.)
; Confirm (see 2. Confirmation procedure) the LOSSNAY you want to delete and display the indoor units and LOSSNAY confirmation results.
(This setting cannot be made with Mr. SLIM air conditioners.)
A Press the H [TIMER SET] button twice and delete registration of the LOSSNAY registered at the set indoor unit.
- Deletion end display
D
Indoor unit address and "– –" and registered LOSSNAY address and "– –" are alternately displayed.
FUNCTION
TEMP. ON/OFF A
FILTER B
CHECK TEST
- Deletion error display
PAR-20MAA TIMER SET
G When deletion was not performed properly.
E H C F
8 Function Selection
Set the functions of each indoor unit from the remote controller, as required. The functions of each indoor unit can be selected only from the remote controller.
Set the functions by selecting the necessary items from Table 1.
Table 1. Function selection contents (For a detailed description of the factory settings and mode of each indoor unit, refer to the indoor unit installation manual.)
Function
Power failure automatic
FUNCTION
recovery
Indoor temperature
detecting
LOSSNAY connectivity
Power voltage
AUTO mode
) and ( )]
Filter sign
) and ( )] buttons. (01 to 50)
Fan speed
No. of air outlets
Installed options (high-
performance filter)
Up/down vane setting
FUNCTION Energy saving air flow
(Heating mode)
Humidifier
(Direct Add-on type)
NOTE: When the indoor unit functions were changed using the function selection after installation is complete, always indicate the set contents by
FUNCTION
entering
[Function selection flow]
First grasp the function selection flow. The following describes setting of "Room temperature detection position" of Table 1 as an example.
(For the actual setting procedure, see [Setting procedure] 1 to ?.)
) and ( )
1 Check the function selection set contents.
2 Switch to the FUNCTION SELECTION mode.
(Press A and B simultaneously in the remote controller OFF state.)
3 Refrigerant address specification → 00 (Outdoor unit specification)
4 Unit address No. specification
(Buttons C and D operation)
5 Registration (Press button E.)
FUNCTION 6 Mode No. Selection → 02 (Room temperature detection position)
7 Setting No. selection → 3 (remote controller fixed)
(Buttons F and G operation)
8 Register (Press button E.)
5
? Ending function display (Press buttons A and B simultaneously.)
9 Self check
Retrieve the error history of each unit using the remote controller.
1 Switch to the self check mode.
3 Set the outdoor unit refrigerant address No.
When the C [TIMER SET ( When the A [CHECK] button is pressed twice in succession
) and ( )] buttons are pressed,
within three seconds, the display shown below appears.
the refrigerant address No. decreases and increases between 00 and 15.
Set it to the refrigerant address No. whose function you want to select.
(This step is unnecessary for single refrigerant system.)
FUNCTION FUNCTION Self check address or self check refrigerant address
" have flashes for two seconds, communica-
3 Self check result display <Error history> (For the contents of the error code, refer to the indoor unit installation manual or service handbook.)
When the C [TIMER SET ( ) and ( )] buttons are pressed, the unit ad-
Error code 4 digits or error code 2 digits
dress No. changes in 00 → 01 → 02 → 03 → 04 → AL order. Set it to the
unit address No. of the indoor unit whose functions you want to set.
FUNCTION FUNCTION 4 Error history reset
The error history is displayed in 3 Self check results display.
When registered using the E [Mode selection] button, the registered When the D [Timer selection] button is pressed two times successively within
indoor unit begins fan operation. When you want to know the location of three seconds, the self check address or refrigerant address flashes.
the indoor units of the unit address No. whose functions were selected,
check here. When the unit address No. is 00 or AL, all the indoor units of
the selected refrigerant address perform the fan operation.
5 Self check reset
Ex) When refrigerant address 00, unit address No. = 02 registered
There are the following two ways of resetting self check.
FUNCTION Refrigerant address 00
Press the A [CHECK] button two times in succession within three seconds → Resets self check and returns to the state before self check.
Outdoor unit Press the C [ON/OFF] button → Self check resets and indoor units stop.
Unit address
Unit address Unit address 10 Remote Controller Check
Indoor unit
No. 01 No. 02 No. 03
1 First check the power mark.
Fan operation When normal voltage (DC12V) is not applied to the remote controller,
Registration
Remote Controller the power mark goes off.
* When grouping by different refrigerant systems and an indoor unit other
When the power mark is off, check the remote controller wiring and
than the specified refrigerant address performs the fan operation, the
the indoor unit.
refrigerant address set here is probably duplicated.
2 Switch to the remote controller check mode.
Recheck the refrigerant address at the outdoor unit rotary switches.
When the A [CHECK] button is held down for five seconds or
longer, the display shown below appears.
) and ( )] buttons. (Only the settable mode numbers can be selected.)
FUNCTION
3 Remote controller check result
When remote controller is normal
Select the setting No. using the F [TEMP. (
) and ( )] buttons.
Since there is no problem at the remote controller, check for other causes.
FUNCTION FUNCTION
Setting No. 3 = Remote controller built-in sensor When the problem is other than the checked remote controller
(Error code 2) "E3" "6833" "6832" flash → Cannot send
There is noise on the transmission line, or the indoor unit or another
FUNCTION FUNCTION
remote controller is faulty. Check the transmission line and the other
" flashes at the room temperature display, communication is probably abnormal.
remote controllers.
4 Remote controller check reset
When the A [CHECK] button is held down for five seconds or longer, remote controller check resets and the "H0" and RUN lamp flash.
Approximately 30 seconds later, the remote controller returns to the state before remote controller check.
7
FUNCTION FUNCTION
FUNCTION
FUNCTION
FUNCTION FUNCTION
Perform only when change is necessary with Mr. SLIM air conditioner.
(Cannot be performed with CITY MULTI control system.)
Settings Mode No. Setting No. Check Object unit address No.
Unit address No. 00
Not available 01 1
Available (Approximate 4 minutes wait-period after power is restored.) 01 2
Indoor unit operating average 02 1
Set by indoor unit's remote controller
02 2
Remote controller's internal sensor 02 3 These items are set for all in-
Not Supported door units.
03 1
Supported (indoor unit is not equipped with outdoor-air intake) 03 2
Supported (indoor unit is equipped with outdoor-air intake) 03 3
240 V
04 1
220 V, 230 V 04 2
Energy saving cycle automatically enabled
05 1
Energy saving cycle automatically disabled 05 2
Unit address No. 01 to 04 or
100 Hr 07 1
2500 Hr 07 2 AL
No filter sign indicator 07 3
Quiet Standard
08 1
Standard High ceiling 1 PL(H)(A)-P·AA type 08 2
High ceiling 2
High ceiling 08 3
4 directions 09 1
3 directions 09 2
2 directions These items are set for each
09 3
Not supported 10 1 indoor unit.
Supported
10 2
No vanes 11 1
Equipped with vanes (No. 1 set) 11 2
Equipped with vanes (No. 2 set) 11 3
Disabled 12 1
Enabled
12 2
Not supported 13 1
Supported 13 2
or other mark in the appropriate check field of Table 1.
F
FUNCTION
TEMP. ON/OFF
I
(Unnecessary for single refrigerant system.)
→ 00 (Indoor unit specification) FILTER A
E
YES CHECK TEST
B
(Specified indoor unit → G PAR-20MAA TIMER SET
Fan operation) Change H
NO refrigerant
address and unit
address No.?
C D
9
NO
End?
YES
6
2 Set the address or refrigerant address No. you want to self check.
When the B [TEMP. ( ) and ( )] buttons are pressed, the address de-
creases and increases between 01 and 50 or 00 and 15. Set it to the ad-
dress No. or refrigerant address No. you want to self check.
CHECK CHECK
CHECK MODE CHECK MODE
Approximately three seconds after the change operation, the self check refrig-
erant address changes from flashing to a steady light and self check begins.
CHECK CHECK
(Alternate
display)
CHECK MODE CHECK MODE
ERROR CODE
Address 4 digits or unit address No. 2 digits
Error detection attribute
<When there is no error history> <When opposite side does not exist>
CHECK
CHECK MODE
CHECK CHECK
B
TEMP. ON/OFF
CHECK MODE CHECK MODE
ERROR CODE ERROR CODE FILTER
CHECK TEST
PAR-20MAA TIMER SET
CHECK CHECK
(Alternate
display)
CHECK MODE CHECK MODE
ERROR CODE
When the error history was reset, the display shown below appears.
When error history reset failed, the error contents are displayed again.
CHECK CHECK
CHECK MODE CHECK MODE
ERROR CODE
(When operation is prohibited, this operation is ineffective.)
When the air conditioner cannot be controlled from the remote controller,
use this function to check the remote controller.
Power mark
TEST RUN
When the B [FILTER] button is pressed, TEMP.
ON/OFF
remote controller check begins. FILTER
CHECK TEST
PAR-20MAA TIMER SET
CHECK CHECK
CHECK MODE CHECK MODE
A
When remote controller is faulty
(Error display 1) "NG" flashes → Remote controller send/receive circuit abnormal
CHECK CHECK
CHECK MODE CHECK MODE
Remote controller switching is necessary.
(Error display 3) "ERC" and data error count are displayed → Data error generation
Data error count (Max 66 errors)
CHECK CHECK
CHECK MODE CHECK MODE
"Data error count" is the difference between the number of bits of remote controller
send data and the number of bits actually sent to the transmission line. In this
case, the send data was disturbed by the noise, etc. Check the transmission line.
When data error count is 02
Remote controller send data
Send data on transmission line
8
C
A
B