Mitsubishi Electric PAC-YT51CRB Installation Manual

GB WT03594X04
CITY MULTI Control System
and Mr. SLIM Air Conditioners
Simple MA Controller PAC-YT51CRB
Installation Manual
This instruction manual describes how to install the Simple MA Controller for Mitsubishi Building Air Conditioning Systems, direct expansion type CITY
MULTI air conditioner indoor units ("-A" type and later), and 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
G Read these Safety Precautions and perform installation work accordingly.
G 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 PAC-YT51CRB
CAUTION This symbol denotes what could lead to a personal injury or damage to your property if you misuse the PAC-YT51CRB
G After reading this installation manual, give it and the indoor unit installation manual to the end user.
G 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 PAC-YT51CRB, 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 that is strong enough to withstand the weight of the All electrical work must be performed by a licensed technician, accord-
PAC-YT51CRB. ing to local regulations and the instructions given in this manual.
Any lack of strength may cause the PAC-YT51CRB 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 PAC-YT51CRB 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 PAC-YT51CRB by yourself.
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. Do not install in any place at a temperature of more than 40
° °
Flammable gases accumulated around the body of PAC-YT51CRB may cause less than 0 C (32 F) or exposed to direct sunlight.
an explosion. The PAC-YT51CRB may be deformed or may malfunction.
Do not use in any special environment. Do not touch any control button with your wet hands.
Using in any place exposed to oil (including machine oil), steam and sulfuric Doing so may cause an electric shock or a malfunction.
gas may deteriorate the performance significantly or give damage to the com-
Do not wash with water.
ponent parts.
Doing so may cause an electric shock or a malfunction.
Wire so that it does not receive any tension.
Do not press any control button using a sharp object.
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 touch any PCB (Printed Circuit Board) with your hands or with
Any dew, moisture, insects entering the unit may cause an electric shock or a
tools. Do not allow dust to collect on the PCB.
malfunction.
Doing so may cause fire or an electric shock.
When installing the remote controller in a hospital or communication
Do not install in any place where acidic or alkaline solution or special
facility, take ample countermeasures against noise.
spray are often used.
Inverters, emergency power supply generators, high-frequency medical equip-
Doing so may cause an electric shock or malfunction.
ment, and wireless communication equipment can cause the remote control-
ler to malfunction or to fail. Radiation from the remote controller may effect Do not install in any steamy place such a bathroom or kitchen.
communication equipment and prevent medial operations on the human body Avoid any place where moisture is condensed into dew. Doing so may cause
or interfere with image transmission and cause noise. an electric shock or a malfunction.
Never contact the power supply with the control wiring terminals. Use standard wires in compliance with the current capacity.
Doing so will certainly cause the controller to catch fire. A failure to this may result in an electric leakage, heating or fire.
2 Checking the Supplied Parts
Check that the box includes the following parts in addition to this installation manual: 16(5/8) 16(5/8)
Remote Controller Model Name Enclosed Parts
(1) Simple MA Controller .......................................................... 1
PAC-YT51CRB (2) Cross-recessed pan-head screws ...................................... 2
(3) Operation manual ............................................................... 3
NOTE: The parts listed below must be purchased separately.
(1) Cable connecting the remote controller to the indoor unit:
1.5 (1/16) or less
Use the cable specified below.
54(2-1/8)
Cable type VCTF or CVV (2-core): 0.75 – 1.25 mm 2 (stranded 16 to 20 AWG) or equivalent
Switch box
* CVV is a control cable which is sheathed in polyvinyl chloride with polyvinyl insulated wires inside.
NOTE: If you need to use a cable extension longer than 10 m (32 ft), select an electric wire that meets the following specifications:
2
Wire specification VCTF or CVV (2-core): 1.25 mm (stranded 16 AWG) or equivalent
(2) The switch box is necessary for mounting. Use the switch box specified in the right.
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
Address=01 Address=02 Address=03 Address=04 Address=09
TB7 TB3 (4)
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) (3) (3)
Address=55 a Outdoor unit
a
b Indoor unit
TB7 TB3 Address=08 Address=07 Address=06 Address=05
b b b b
c LOSSNAY or OA processing unit
TB5 TB15 TB5 TB15 TB5 TB15 TB5 TB15
f
d Main Remote Controller
e Sub Remote Controller
(1) (1)
g
f Central controller
d e (2)
g Power supply unit for transmission line
(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. Continue to the terminal block at the rear bottom of the remote controller.
(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 main remote controller and one sub remote controller, a total of two, can be connected to a group made up of indoor units.
(4) To interlock to a LOSSNAY or OA processing unit, make the following settings using the remote controller. (For a description of how to set an
interlock, see section 6 Ventilation Setting .)
Set the LOSSNAY or OA processing unit address and the address of all the indoor units you want to interlock.
(5) Total length of remote controller wiring
• The simple MA controller can be wired up to 200 m (656 ft). Procure 0.75 - 1.25 mm 2 (stranded 16 - 28 AWG), 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 or OA processing unit, always set the address of all the indoor units in the
group and the address of the LOSSNAY or OA processing unit.
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 Individual twin
Simultaneous twin
Refrigerant Refrigerant Refrigerant Refrigerant
a a a
address=00 address=00
address=00 address=00
TB1 TB1 TB1 TB1
TB4 TB4 TB4 TB4 TB4 TB4
b b b b b b
TB5 TB5 TB5 TB5
(1) (1)
(1) (1)
(3)
(3) (3) (3) (3) (3)
d d e d d e
[2] When grouping by different refrigerant systems
Individual twin
Standard 1:1 Simultaneous twin Simultaneous triple
Refrigerant Refrigerant
Refrigerant
a a Refrigerant address=01 a Refrigerant address=02 a address=04
address=00 address=03
(Subordinate) (Subordinate)
(Master) (Subordinate) (Subordinate)
a Outdoor unit
TB1 TB1 TB1 TB1 TB1
b Indoor unit
TB4 TB4
TB4 TB4 TB4 TB4 TB4 TB4
d Main Remote Controller
b b b b b b b b
(Simple MA Controller)
TB5 (2) TB5 (2) TB5 (2) TB5 (2) TB5
e Sub remote controller
(1)
(1)
(Simple MA Controller)
(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 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
multi type, always satisfy the conditions of (1) above.
• The MA compact remote controller can control up to 16 refrigerant systems as one group.
(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 5 in section 4 How To Install .)
(4) Total length of remote controller wiring
• The remote controller can be wired up to 200 m (656-1/8 ft). Procure 0.75 ~ 1.25 mm 2 (16 ~ 28 AWG), 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 Standard 1:1 Simultaneous twin
Refrigerant
a Refrigerant a Refrigerant a
address=00 address=00 address=01
TB1 TB1 TB1
TB4 TB4 TB4 TB4 TB4
b b b b b
TB5 TB5 TB5 TB5 TB5
d
d
4 How To Install
1. Mount the switch box
(1) Install the switch box (purchased separately) as ex-
NOTE: - Be sure to install the switch box with the clearance shown in the illustra-
plained below.
tion at the left. (Check the space between the unit and any projection
Projecting such as a stud.)
Switch box object such as
- Leave a space of 120 mm (4-3/4 in) or more below the remote controller
a stud
so that the screwdriver can be used.
- Since the remote controller is equipped with a temperature sensor, in-
stall the remote controller in a location where the average room tem-
Outline of remote
perature can be detected and which is not directly affected by some heat
controller
source, direct sunlight or air blown from an air conditioner.
40 mm (1-19/32 in) or more
(2) Purchase the thin-copper wiring pipe and locknuts and bushings separately.
° °
C (104 F) or
2. Install the remote controller
(1) Pull out about 80 mm of cable from the wall and remove the insulation from its end.
(2) Use putty to seal the cable lead-in hole in order to prevent insects from damaging the wiring and to prevent air from condensing on the remote
controller circuit board. If the hole is not sealed well, the remote controller circuit board may be damaged.
Wall
80mm
11 10
(3-3/16 in)
(7/16) (13/32)
Leading Insu- Sheath
wire lation
Cable
(3) Connect the cable to the terminal board in the bottom rear of the simple MA controller unit.
• The cable does not have polarity.
• When connecting stranded cable, hold down the button on the terminal board while inserting
the cable.
Button: • The cable connects to the main terminal board when it is inserted into the bottom terminal.
Press here.
• When disconnecting the cable, hold down the button while pulling out the cable.
• After inserting the cable, slightly tug on it to check that it does not easily disconnect. If the
Insert the cable. cable is not securely connected, a short-circuit or malfunction may occur.
(4) Remove the controller cover using a standard screwdriver, then attach the simple MA controller unit to the switch box using the two enclosed
cross-recessed pan-head screws. Use a standard screwdriver with a blade that is 4 mm (5/32 in) or wider to remove the cover.
Remove controller cover
h
6(1/4) 20
(13/16)
10
(3/8)
44(1-3/4)
1
Unit: mm (in)
- Forcing off the cover using a screwdriver that is less than 4 mm (5/32 in) wide may result in damage to the equipment.
CAUTION - Attach the remote controller to a level surface. Do not overtighten the screws, otherwise the case may become deformed or
break.
(5) When using two remote controllers in one group, set the dip switches.
When using two remote controllers in one group, specify the main and sub remote controllers using dip switch No. 1 shown below.
• When connecting only one remote controller to one group, it is always the main remote controller. When connecting two remote controllers to
one group, set one remote controller as the main remote controller and the other as the sub remote controller.
• The factory setting is "Main".
Setting the dip switches
There are switches on the front 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
Connect to
Remote controller
TB15 on the
1 Main Sub Set one of the two remote controllers at one group to "Main"
Main/Sub setting
indoor unit.
Temperature display
2 Celsius Fahrenheit When the temperature is displayed in [Fahrenheit], set to "No".
units setting
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".
(6) After setting the remote controller address, attach the remote controller cover.
When attaching the remote controller cover, set the top of the cover onto the two top hooks, then push in on the bottom of the cover until it snaps
into place.
If the bottom of the cover is attached first, the top of the cover cannot be attached. Forcefully pushing in the top of the cover to attach it may
break the hooks.
- Press in on the bottom of the cover until it snaps into place.
- When attaching the remote controller cover, be careful not to move the room tem-
perature sensor out of place. Moving the sensor out of place or pinching it while
CAUTION
attaching the cover may result in the sensor malfunctioning or being damaged.
test run time
5 Test Run The amount of time: remaining for the test run is
displayed.
Display range: 2:00 to 0:01
1. Before making a test run, refer to the "Test Run" section of the After two hours, the test run stops automatically.
indoor unit installation manual.
2. When the [ON/OFF] button and [TEMP.] ( ) button are pressed
simultaneously for 2 seconds or longer, test run is performed.
3. Stop the test run by pressing the [ON/OFF] button.
4. If trouble occurred during the test run, refer to the "Test Run" sec-
tion of the indoor unit installation manual.
d e
6 Ventilation Setting
Make this setting only when interlocked operation with LOSSNAY or OA processing unit is
necessary with CITY MULTI models.
(This setting cannot be made with Mr. SLIM air conditioners.)
Perform this operation when you want to register the LOSSNAY or OA processing unit, confirm the registered units, or delete the registered units
controlled by the remote controller.
The following uses indoor unit address 05 and LOSSNAY or OA processing unit address 30 as an example to describe the setting procedure.
- When LOSSNAY or OA processing unit are not registered
[Setting Procedure]
1 Stop the air conditioner using the remote controller [ON/OFF] button.
2 Press and hold down the [ (Fan Speed Adjustment)] and [TEMP .
Connect to
( )] buttons at the same time for two seconds. The display shown be-
TB5 on the
low appears. The remote controller confirms the registered LOSSNAY
indoor unit. or OA processing unit addresses of the currently connected indoor units.
4 If registration is unnecessary, end registration by pressing and holding
down the [ (Fan Speed Adjustment)] and [TEMP. (
same time for two seconds.
If a new LOSSNAY or OA processing unit must be registered, go to step 1.
Registration procedure . If you want to confirm another LOSSNAY or OA
processing unit, go to step 2. Confirmation procedure. To delete a regis-
3 Registration confirmation result
tered LOSSNAY or OA processing unit, go to step 3. Deletion procedure.
- The indoor unit address and registered LOSSNAY or OA processing
unit address are displayed alternately.
< 1. Registration procedure >
5 Set the address of the LOSSNAY or OA processing unit and the indoor
unit connected by the remote controller you want to register using the
LC: LOSSNAY
[TEMP. ( ) and (
FU: OA Process-
6 After setting, press the [
ing unit
Lossnay address you want to register by operating the [TEMP. (
( )] buttons. (01~50)
<Indoor unit address and indoor unit display> <LOSSNAY address display and LOSSNAY display>
2 Indoor unit address
7 Press the [ON/OFF] 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.
- Registration error display
If the address is not registered correctly, the indoor unit address and [
], and the registered LOSSNAY (or OA processing unit address)
and [ ] are alternately displayed.
Standard 1:1
Cannot be registered because the registered indoor unit or LOSSNAY
Refrigerant
a or OA processing unit does not exist.
address=00
Cannot be registered because another LOSSNAY or OA processing
TB1 unit was registered at the registered indoor unit.
TB4
< 2. Confirmation procedure >
b
a Outdoor unit 8 Set the address of the indoor unit connected by the remote con-
TB5
b Indoor unit troller whose LOSSNAY or OA processing unit you want to confirm
using the [TEMP. ( ) and ( )] buttons. (01 to 50)
d Main Remote Controller
d e
e Sub remote controller 9 Press the [ON/OFF] button and [ (Fan Speed Adjustment)]
button simultaneously for 2 seconds, and check the Lossnay ad-
dress registered at the set indoor unit address.
- Confirmation end display (When LOSSNAY is connected.)
The indoor unit address and "IC" and registered LOSSNAY ad-
dress and "LC" are alternately displayed.
7 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 Settings
Power failure automatic Not available
recovery Available (Approximate 4 minutes wait-period after power is restored.)
Indoor unit operating average
Indoor temperature
Set by indoor unit's remote controller
detecting
Remote controller's internal sensor
Wiring pipe Not Supported
OA processing unit
Supported (indoor unit is not equipped with outdoor-air intake)
connectivity
Supported (indoor unit is equipped with outdoor-air intake)
One switch box (with cover)
240 V
Power voltage
220 V, 230 V
Energy saving cycle automatically enabled
AUTO mode
Seal with putty.
Energy saving cycle automatically disabled
100 Hr
Filter sign 2500 Hr
No filter sign indicator
Quiet Standard
Fan speed Standard High ceiling 1
High ceiling High ceiling 2
4 directions
No. of air outlets 3 directions
2 directions
Installed options (high- Not supported
performance filter) Supported
No vanes
Up/down vane setting Equipped with vanes (No. 1 set)
Equipped with vanes (No. 2 set)
Energy saving air flow Disabled
(Heating mode)
Enabled
Humidifier Not supported
(Direct Add-on type)
Supported
* For mode numbers other than listed above, refer to the indoor unit installation manual.
NOTE: When the indoor unit functions were changed using the function selection after installation is complete, always indicate the set contents by
entering or other mark in the appropriate check field of Table 1.
[Function selection flow]
3
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 ?.)
1 Check the function selection set contents.
2 Switch to the FUNCTION SELECTION mode.
(Press D and C simultaneously in the remote controller OFF state.)
3 Refrigerant address specification → 00 (Outdoor unit specification)
(Unnecessary for single refrigerant system.)
→ 00 (Indoor unit specification)
4 Unit address No. specification
(Buttons B, C and D operation)
(Specified indoor unit →
5 Registration (Press button A.)
Fan operation)
6 Mode No. Selection → 02 (Room temperature detection position)
7 Setting No. selection → 3 (remote controller fixed)
(Buttons B, C and D operation)
Comment
8 Register (Press button A.)
NO
End?
YES
? Ending function display (Press buttons D and C simultaneously.)
[Procedure] (Set only when change is necessary.)
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.
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.
2 Set the remote controller to Off.
Press and hold down the D [
(Fan Speed Adjustment)] and
the C [TEMP. (
)] buttons at the same time for two seconds or
longer.
" (FUNCTION)" blinks for a while, then the remote controller
F
Room tempera- display changes to the display shown below.
ture sensor
Refrigerant address
display
indoor unit piping temperature
Display range: –20°C (–4°F) to
* If the remote controller enters the OFF state after the "
70°C (158°F)
nication is probably abnormal. Make sure there are no noise sources near the transmission line.
"–20°C" or "70°C" flashes on the
display
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.
(–4°F) Press the D [ (Fan Speed Adjustment)] button. The unit ad-
dress No. display "– –" flashes.
Alternately displays the test run time
and indoor unit piping temperature.
Unit address No. display
* When setting mode 1 ~ 5 set the unit address No. to "00".
* When setting modes 7 to 13:
- 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 A [ON/OFF] button. The refrigerant address and unit ad-
dress No. are registered.
After a while, the mode No. display "– –" flashes.
Mode No. display
)] buttons at the
* When " " flashes at the room temperature display, the selected refrig-
erant 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-
)] buttons. (01 to 50) dress No. by repeating steps 3 and 4.
(Fan Speed Adjustment)] button and set the
) and
6 Mode No. selection
Select the mode No. you want to set with the B [TEMP. (
Mode No. display
LOSSNAY or OA processing unit address 4
- Confirmation end display (When - Registered indoor unit ad-
7 Select the setting contents of the selected mode.
LOSSNAY or OA processing unit
dress does not exist. When the D [
(Fan Speed Adjustment)] button is pressed, the
is not connected.)
current setting No. flashes. Use this to check the currently set con-
tents.
LC: LOSSNAY
Setting No. 1 = Simultaneous operation
FU: OA Process-
indoor units balance
ing unit
< 3. Deletion procedure >
8 The contents set at steps 3 to 7 are registered.
Use this procedure when you want to delete registration of indoor units
When the A [ON/OFF] button is pressed, the mode No. and setting No. flash and registration begins. The flashing mode No. and
connected by the remote controller and LOSSNAY or OA processing unit.
setting No. change to a steady light and setting ends.
; Confirm (see 2. Confirmation procedure) the LOSSNAY or OA pro-
cessing unit you want to delete and display the indoor units and
LOSSNAY or OA processing unit confirmation results.
A Press the [TEMP. ( ) and ( )] button simultaneously for 2 sec-
onds, and delete registration of the LOSSNAY or OA processing unit
address registered at the set indoor unit.
* When "– –" appears at the mode No. and setting No. displays and "
- Deletion end display
Make sure there are no noise sources near the transmission line.
Indoor unit address and "– –" and registered LOSSNAY or OA pro-
9 To select more functions, press the D [
cessing unit address and "– –" are alternately displayed.
? End function selection.
Press and hold down the C [TEMP. (
After a while, the function selection display disappears and the remote controller returns to the air conditioner off display.
* Do not operate the air conditioner from the remote controller for 30 seconds after the end of function selection.
NOTE: When the functions of an indoor unit were changed by function selection after the end of installation, always indicate the set contents
- Deletion error display
by entering a
When deletion was not performed properly.
8 Self diagnosis
Retrieve the error history of each unit using the simple MA controller.
1 Switch to the self-diagnosis mode.
When the A [ON/OFF] button and the C [TEMP. (
are pressed for 5 seconds or longer, the figure shown below is
displayed.
LC: LOSSNAY
FU: OA Process-
Self-diagnosis address or self-
ing unit
diagnosis refrigerant address
Please set the following functions connected with Mr.SLIM if it is neccessary.
(Cannot be performed with CITY MULTI Control system.)
3 Self-diagnosis result display <Error history> (For the contents of the error code, refer to the indoor unit installation manual or service handbook.)
Error code 4 digits or error code 2 digits
Mode No. Setting No. Check Object unit address No.
01 1 Unit address No. 00
01 2
02 1
02 2
02 3 These items are set for all in-
03 1 door units.
03 2
03 3
04 1
4 Error history reset
04 2
The error history is displayed in 3 self-diagnosis results display.
05 1
When the D [
05 2 (Fan Speed Adjustment)] button is pressed two
07 1 Unit address No. 01 to 04 or
times successively within three seconds, the self-diagnosis object ad-
07 2 AL
dress and refrigerant address flash.
07 3
08 1
PL(H)(A)-P·AA type 08 2
08 3
09 1
09 2
5 Self-diagnosis reset
09 3 These items are set for each
There are the following two ways of resetting self-diagnosis.
10 1 indoor unit.
Press the A [ON/OFF] button and the C [TEMP. (
10 2
Press the A [ON/OFF] button.→ Self-diagnosis resets and indoor units stop.
11 1
11 2
11 3
12 1
12 2 9 Remote Controller Check
13 1
13 2
1 First check the power mark.
When normal voltage (DC12V) is not applied to the remote controller,
the power mark goes off.
When the power mark is off, check the remote controller wiring and
the indoor unit.
5
2 Switch to the remote controller check mode.
When the B [TEMP. (
ment)] button are pressed simultaneously for 5 seconds or longer,
the figure shown below is displayed.
B
YES
Change A 3 Remote controller check result
NO refrigerant
<When remote controller is normal>
address and unit
address No.?
ON/OFF
C TEMP.
Since there is no problem at the remote controller,
9
check for other causes.
D
PAC-YT51CRB
When the problem is other than the checked remote controller
(Error display 2) "E3" "6833" "6832" flash →
Cannot send
There is noise on the transmission line, or the indoor unit or another
3 Set the outdoor unit refrigerant address No.
remote controller is faulty. Check the transmission line and the other
When the B [TEMP. ( )] and C [TEMP. (
)] buttons are pressed, the
remote controllers.
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.)
4 Remote controller check reset
When the B [TEMP. (
controller diagnosis is reset and the [HO] and run lamp flash and 30 seconds later the remote controller returns to its state before diagnosis.
F (FUNCTION)" and room temperature displays " " have flashes for two seconds, commu-
10 Temperature Range Setting
1 Press the A [ON/OFF] button to stop the air conditioner.
2 Press the D [Fan Speed Adjustment] button for 3 seconds or longer to set the temperature range. (
When the B [TEMP. ( )] and C [TEMP. ( 3 Press the A [ON/OFF] button to set the temperature range
)] buttons are pressed, the unit
address No. changes in 00 ↔ 01 ↔ 02 ↔ 03 ↔ 04 ↔ AL order. Set it to the
1 No temperature range setting
unit address No. of the indoor unit whose functions you want to set.
1
2
3
4
When registered using the A [ON/OFF] , the registered indoor unit be-
4 To change the temperature setting range in the cooling/dry, heat-
gins fan operation. When you want to know the location of the indoor ing, and Auto mode, perform the procedures of 5 and 6.
5 Press the D [Fan Speed Adjustment] button to switch the setting
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 between higher limit [Hi] and lower limit [Lo].
refrigerant address perform the fan operation.
6 Press the B [TEMP. ( )] or C [TEMP. (
Ex) When refrigerant address 00, unit address No. = 02 registered • Temperature can be adjusted within the Temperature setting range. For
Refrigerant address 00 the setting temperature range, refer to the indoor unit operation manual.
• Pressing the B [TEMP. (
Outdoor unit
taneously allows to return to the previous temperature setting
range in the cooling/dry, heating, and Auto mode.
Unit address Unit address Unit address
Indoor unit
No. 01 No. 02 No. 03
11 Auto Mode Skip Setting
Fan operation
Registration Auto mode skip setting is only available for the controllers connected
Simple MA Controller
with heat pump air conditioners with Auto mode.
* When grouping by different refrigerant systems and an indoor unit other
1 Press the A [ON/OFF] button to stop the air conditioner.
than the specified refrigerant address performs the fan operation, the
2 Press the B [TEMP. (
refrigerant address set here is probably duplicated.
Recheck the refrigerant address at the outdoor unit dip switches. neously for 3 seconds or longer to set the Auto mode skip. (The
current setting will be displayed.)
)] and C [TEMP. ( )] buttons. (Only the settable mode numbers can be selected.)
The display that Auto mode skip setting is off
6
Mode No. 02 = Room temperature detection position
Select the setting No. using the B [TEMP. ( )] and C [TEMP. (
)]
buttons.
Setting No. display
Setting No. 3 = Remote controller built-in sensor
" flashes at the room temperature display, communication is probably abnormal.
(Fan Speed Adjustment)] and repeat steps 3 to 8.
)] and D [ (Fan Speed Adjustment)] buttons at the same time for two seconds or longer.
or other mark in the appropriate check field of Table 1.
2 Set the address or refrigerant address No. you want to self-diagnosis.
When the B [TEMP. ( )] and C [TEMP. (
)] button )] are pressed, the address
decreases and increases between 01 and 50 or 00 and 15. Set it to the
address No. or refrigerant address No. you want to self-diagnosis.
Approximately three seconds after the change op-
eration, the self-diagnosis refrigerant address
changes from flashing to a steady light and self-di-
agnosis begins.
Error detection attribute
(Alternate
display)
Address 4 digits or unit address No. 2 digits
<When there is no error history> <When opposite side does not exist>
When the error history was reset, the display shown below appears.
When error history reset failed, the error contents are displayed again.
)] button simultaneously for 5 seconds or longer. → Resets self-diagnosis and returns to the state before self-diagnosis.
(When operation is prohibited, this operation is ineffective.)
When the air conditioner cannot be controlled from the simple MA controller,
use this function to check the remote controller.
Power mark
7
)] button and D [ When the A [ON/OFF] button is pressed,
(Fan Speed Adjust-
remote controller check begins.
<When remote controller is faulty>
(Error display 1) "NG" flashes → Remote controller
send/receive circuit abnormal
Remote controller switching is necessary.
(Error display 3) "ERC" and data error count are dis-
played → Data error generation
"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
)] button and D [
(Fan Speed Adjustment)] button are pressed simultaneously for 5 seconds or longer, remote
This function allows to set temperature adjustment range (higher/lower
limit).
1 or 2 will be displayed.)
1 ~ 4 in each operation mode.
2 Temperature range in the cooling/dry mode 3 Temperature range in the heating mode 4 Temperature range in the Auto mode
(67:87 ° F) (63:83 ° F) (67:83 ° F)
* When the Auto mode skip is off, 4 temperature range in the Auto mode is not displayed.
No temperature range setting : Temperature range will not be available in the all modes.
Temperature range in the cooling/dry mode : Temperature setting range in the cooling/dry mode will be changed.
Temperature range in the heating mode : Temperature setting range in the heating mode will be changed.
Temperature range in the Auto mode : Temperature setting range in the Auto mode will be changed.
7 Press the D [Fan Speed Adjustment] button for 3 seconds or longer to
complete the temperature range setting.
• When the temperature range setting is completed, while one of the 2 , 3 ,
or 4 is displayed, temperature range in the cooling/dry, heating, and Auto
)] button to set the higher/lower limit. mode will be changed.
• When the temperature beyond the temperature setting range is set, the
set temperature display flashes.
)] and C [TEMP. (
)] buttons simul- * The temperature range can be set from the centralized remote controller that
has the function of temperature range setting via this Simple MA Controller con-
nected with the indoor unit that has the function of temperature range setting.
This function allows to enable or disable the Auto mode.
3 Auto mode can be enabled or disabled by pressing the A [ON/OFF] button.
ON - Auto mode is enabled.
OFF - Auto mode is disabled.
)] and C [TEMP. (
)] buttons simulta- 4 Press the B [TEMP. ( )] and C [TEMP. ( )] buttons simultaneously for 3
seconds or longer to complete Auto mode skip setting.
8