Mitsubishi Electric Central Controller G-50A User manual

Mitsubishi Electric Air-conditioner Network System
Central Controller
Model: G-50A
Instruction Book
Before using the controller, please read this Instruction Book carefully to ensure proper
operation. Keep this manual for future reference.
Contents
1. Safety precautions ...................................................... 1
2. Product features ......................................................... 2
3. Functions .................................................................... 4
3-1 Specifications .................................................. 4
3-2 Display Screen ................................................ 8
4. User operation ......................................................... 10
4-1 Operation condition monitor ......................... 11
4-2 Operation setting .......................................... 12
4-2-1 Group operation setting ........................ 12
4-2-2 Collective operation setting .................. 16
4-3 Timer operation ............................................ 19
4-4 Malfunction ................................................... 23
4-5 Current time setting ...................................... 24
5. Initial setting ............................................................. 25
5-1 Shifting to initial setting menu ...................... 25
5-2 M-NET address setting ................................ 25
5-3 Function setting ............................................ 26
5-4 Group configuration setting .......................... 27
5-5 Interlocked operation setting ........................ 29
5-6 Group name setting ..................................... 31
5-7 User setting .................................................. 34
5-8 IP address setting ........................................ 35
5-9 Initial setting tools connection function ........ 35
6. Maintenance ............................................................ 36
6-1 Refrigerant system monitor .......................... 36
6-2 Malfunction log monitor ................................ 37
7. External input / output function ................................ 38
7-1 External input function ................................. 38
7-2 External output function ............................... 39
Appendix 1: Initial setting (abridged) ............................. 40
Appendix 2: User operation (abridged) ......................... 42
G-50A
ON/OFF
CENTRAL CONTROLLER
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– 1 –
1. Safety precautions
Before using the controller, read the Safety Precautions section carefully to ensure proper operation.
These safety precautions must be observed by anyone who operates the central controller at all times.
Keep this Instruction Book and Installation Manual for future reference. Make sure both this Instruction Book and the
Installation Manual are given to the next user.
Safety symbols used in this manual
WARNING
CAUTION
This symbol indicates that failure to follow the instructions exactly as stated poses the risk of
serious injury of death.
This symbol indicates that failure to follow the instructions exactly as stated poses the risk of
injury or damage to the controller.
WARNING
CAUTION
●
Have the unit professionally installed.
Improper installation by an unqualified person may result in
a risk of electric shock or fire.
●
Make sure the controller is securely mounted so
that it will not fall.
●
Do not remove the cover during operation.
Contact with electrically charged parts on the controller
cause skin burns or other types of injury.
●If any abnormality is noticed (e.g., burning smell),
stop the operation, turn off the power supply, and
contact your dealer or technical representative
immediately.
Continuing the operation may result in damage to the
controller, electric shock, or fire.
●
Ask your dealer or an authorized technician to
move the controller.
Improper installation may result in electric shock or fire or
damage to the controller.
●
Controllers must be disposed of properly.
Contact your dealer for proper disposal procedures.
●
Do not install the controller where there is a risk of
leakage of flammable gas.
If the leaked gas accumulates around the controller, it may
be ignited and result in an explosion.
●
Do not use the controller in an environment high in
oil, steam, or sulfuric gas.
These substances may have adverse effects on the
performance of the controller of damage its parts.
●
Do not wet the controller.
Water may damage the controller and cause an electric shock.
●
To avoid the risk of electric shock or damage to the
controller, do not touch the switches with wet hands.
●
Do not use the controller for specialized applications.
This product is designed exclusively for use with the
MITSUBISHI ELECTRIC building air conditioning control
system. The use of this product with other air-conditioning
management systems or for other purposes may result in
malfunctions.
●
Do not spray insect sprays or sprays with
flammable propellants to the controller.
To avoid the risk of fire or explosion, do not place
flammable sprays near the controller or spray them directly
on the controller.
●
Operate the controller within the temperature range
specification.
The use of controller outside of its specification may result
in serious damage to the controller. Be sure to check the
temperature range specification in the Instruction Book.
●
To avoid the risk of electric shock or damage to the
controller, do not press the switches with sharp
objects.
●
Stop the operation immediately and notify your
dealer if an error code is displayed and the controller
does not operate, or when any abnormality is
noticed.
Continuing the operation may result in damage to the
controller or fire.
●
Do not attempt to modify or repair the controller.
Modification or improper repair may result in electric shock
or fire. Consult your dealer when repairs are necessary.
●
Make sure that the controller is connected to a
properly rated power supply to avoid fire or
damage to the controller.
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2. Product features
The central controller is capable of controlling up to 50*1 air conditioner units. It supports the following functions.
(*1: The maximum number of connectible units depends on the indoor unit models.)
[1] User operation functions
(1) Operation
1. Most of the functions of the local remote controllers are supported by the central controller.
The central controller can turn on or off the indoor units in specific groups, display the room temperature for
each indoor unit group, change the operation mode of the indoor units (COOL, DRY, FAN, AUTO and HEAT)
and of the ventilation units (HEAT RECOVERY, BY-PASS, AUTO) as well as change the fan speed, air flow
direction (4 directions and swing), ventilation mode (OFF, LOW speed, or HIGH speed), TIMER MODE, and
temperature setting.
(Refer to section "5-7 User setting".)
2. Access to specific functions of the local remote controller, such as ON/OFF operation, mode selection, tempera-
ture setting, and filter sign reset can be prohibited.
3. Group setting
Operation settings can be made for the entire groups or for each individual group.
(2) Weekly Schedule
1. The weekly schedule allows four different patterns of schedule to be set for each group. (P1-P4)
Three of the four patterns (P1, P2, P3) are used to set the ON/OFF schedule, and the other one (P4) is used to
prohibit the operation from the local remote controller.The ON/OFF schedule patterns (P1, P2, P3) can be used in
combination with the operation prohibition function (P4) to set the schedule within the same day. By setting the
schedule for each day of the week by using the four schedule patterns in combination, a weekly setting can be
made for each group.
2. For each day, three ON times and three OFF times, or three prohibition times and three permission times can be
set. It is possible to set only the ON times (prohibition times only) or only the OFF times (permission times only).
3. Easy setting
Daily operation schedule and weekly schedules (P1-P4) of a group can be copied to the settings for other
groups.
(3) Operation status monitoring
1. The ON, OFF, or MALFUNCTION status of each unit or the group can be monitored.
2. Either the group numbers or the first three characters of group names that are controlled by the central controller
can be displayed. The address of all units can be displayed altogether.
3. While all groups are displayed on the screen, the group that is marked with the symbol can be turned ON or
OFF.
(4) Malfunction monitoring
1. The unit in error, error code, the address of the unit that detected the unit in error will appear on the "Malfunction
monitor" screen.
2. Pressing the reset key stops all the units in the same group or in the same refrigerant system as the unit in error,
and resets the error.
[2] System configuration setup and maintenance
(1) System configuration setup
1. Indoor units, local remote controllers, and lower-level system remote controllers can be registered in the same
group. OA processing or LOSSNAY units can also be registered.
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2. Each group can be specified by its name.
(Alphanumerical characters can be used for the group name.)
3. Group names can be copied to the settings for the other groups.
4. The group configuration settings and the group names can be set as long as power is supplied to the central
controller, even if indoor units have not been connected.
5. When the system configuration was changed, the system configuration data on the central controller can be
erased all at once if necessary.
(2) Refrigerant system monitoring
The addresses of all the units (indoor, outdoor, etc.) in each refrigerant system can be displayed on this screen.
This information is useful for checking the address setting, transmission line connection, and power supply con-
nection.
(3) Interlocked operation setting
Make this setting to perform an interlocked operation of one or more of the indoor units and a ventilation unit. The
interlocked ventilation unit will go into operation when one of the indoor units that is interlocked with it goes into
operation.
(4) Malfunction log
1. The log of the central controller will be kept for the last 64 errors.
2. Information about the date/time of error occurrence, address of the error-source unit, error code, and the address
of the unit that detected the error will be displayed on the screen.
3. The log of the central controller and indoor units can be deleted all at once with the reset button.
[3] Miscellaneous
(1) Entire-system status lamp (Operation/Stop)
Displays the status of the entire system (Normal operation, all OFF, and malfunction status are indicated with a lit,
unlit, blinking lamp respectively).
(2) Collective ON/OFF switch
This switch turns all of the units in the system ON or OFF at once.
(3) Power supply wiring
Power to the central controller is supplied from the PAC-SC50KUA unit through the M-NET transmission line of DC
power line. The length of the DC power line between the PAC-SC50KUA power supply unit and the central control-
ler must not exceed 10 m.
The central controller can be connected to anywhere on the M-NET transmission line. (M-NET transmission line is
a central control line that is connected to the TB7 on the outdoor unit.)
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Item
Source power requirement
Environmental condition
Dimensions
Weight
System condition
Number of control unit
User operating function
ON/OFF
Operation
mode *1
Fan speed *1
Operation
Air direction
and swing
operation *1
Temperature
setting
Specification
DC24V, 0.02A (Maximum loading)
Power received from PAC-SC50KUA Power Supply Unit via M-NET transmission
line, or from an R410A compatible CITY MULTI outdoor unit (except the S Series).
Input voltage *Note: While the power to the connected outdoor unit is turned off, the
G-50A cannot perform a schedule operation, collect charge
data, or perform energy save control.
DC12V, 0.2A (Maximum loading)
Power is received from the PAC-SC50KUA Power Supply Unit via the DC power line.
Operating 0˚C ~ +40˚C / 32˚F ~ +104˚F
Temperature Non operating – 20˚C ~ +60˚C / – 4˚F ~ +140˚F
Humidity 30 ~ 90%RH (No condensation)
mm 120 (H) × 300 (W) × 80 [*19] (D)
in 4-3/4 (H) × 11-13/16 (W) × 3-1/8 [*3/4] (D)
kg 1.0
lb 2-1/4
Indoor unit or independent OA processing unit or LOSSNAY
: 50 units maximum (50 groups maximum)*3
Number of units (indoor or independent OA processing unit or LOSSNAY) in one group
: 1-16 units
*Note Indoor unit, independent OA processing unit and LOSSNAY can not regis-
ter to the same group.
Number of remote controllers in one group
: 1-2
Number of system controllers in one group
: 0-4 (including the number of remote controller in one group)
: 0-3 for groups which have one remote controller.
Number of indoor units interlocked with one OA processing unit or LOSSNAY
: 0-16 (some types of OA processing unit can only be operated when inter-
locked to a maximum of 9 units)
The ON/OFF operation can be performed as a collective or per group.
The switch operation for the operation mode setting can be performed as a collective or
per group.
[Selectable operation mode for the indoor unit]
COOL/DRY/FAN/AUTO/HEAT
[Selectable operation mode for the independent ventilation]
HEAT RECOVERY/BY-PASS/AUTO
The switch operation to set the High and Low speed can be performed as a collective or
per group.
(The 4 fan speed setting is available to the indoor that has 4 levels)
(Fan speed is settable to AUTO on the indoor units that support that setting via G-50A of
ver. 3.10 or later.)
The air flow direction can be switched to 4 directions and swing operation as a collec-
tive or per group.
(Airflow setting can be switched to "5 directions" or to "AUTO" on the indoor units that
support those settings via G-50A of ver. 3.10 or later.)
Temperature setting can be performed collectively or per group.
[Setting temperature range]
Cool (Dry) operation : 19 ~ 30˚C / 67 ~ 87˚F
Heat operation : 17 ~ 28˚C / 63 ~ 83˚F
Auto operation : 19 ~ 28˚C / 67 ~ 83˚F
3. Functions
3 - 1 Specifications
*[ ]: indicate the thickness from
the wall.
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Item
Prohibit local
remote
control
Timer
operation
Operation Filter sign
reset
Ventilation
operation *1
Collective
operation
Each group
operation
Operation
mode
Fan speed
Air direction
Temperature
setting
Timer
operation
Filter sign
Monitor Local remote
control
prohibition
Ventilation
operation
Room
temperature
display
Central control
prohibition
External
input signal
condition
Malfunction
Current time
back-up
Other Timer setting
Specification
The specific functions of a local remote controller can be prohibited as a collective or
per group.
[Prohibit function]
ON/OFF operation, Operation mode setting, Temperature setting and Filter sign
reset operation.
The set schedule operations can be switched to ON/OFF (local remote controller opera-
tion prohibition/permission) for each group.
The filter sign reset operation after the air filters are cleaned can be performed as a
collective or per group.
The ventilation operation of the interlocked OA processing unit or LOSSNAY can be
collective or per group.
[Ventilation operation]
Low speed/High speed/Ventilation OFF
The overall status lamp displays conditions of the collective statues.
Each group operation is displayed on the operation setting screen (group) or opera-
tion monitor screen.
Displayed on the operation setting screen (group).
The unit address and error code are displayed on the malfunction monitor screen
when a malfunction occurs.
When the power is cut off, the current time is backed up for approximately one week.
(When the controller is fully charged. The controller is fully charged by twenty-four
hours after power feed.)
Operation pattern setting can be performed.
• Operation interval: Minimum 10 minutes
• The daily operation pattern and weekly schedule for each group can be set.
• A pattern of one day: P1/P2/P3/ / / / / -
* ON/OFF setting up to three times a day are possible for P1/P2/P3.
*enables to set operation prohibition of 3 times per day for the remote controller.
*/ / implement the schedule which has combined P1/P2/P3 of ON/OFF
pattern and of remote controller operation prohibition pattern together.
(= P1 + / = P2 + / = P3 + is displayed.)
* - is a day without timer operation.
• "The reference temperature and set-back value" or "Setting temperature" which are
linked with timer operation can be set.
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– 6 –
Item
Group name
designation
External
Other signal input
interface
External
signal output
interface
Connecting Group setting
information
setting Interlocked
setting
Malfunction
Monitor history
Refrigerant
system monitor
User setting
Main system
controller/
Sub system
controller
setting *2
Other Prohibition
setting enable
/disable
The prohibited
controller
range setting
K-control
type
Specification
Group name can be specified and display on the operation setting screen.
* Group name setting is need at the initial setting.
Emergency stop/normal, ON/OFF, prohibit/permit for local remote operation can be con-
trolled for units being controlled with a non-voltage contact signal input from an external
source.
When one or more units being controlled are operating, the "ON" signal will be output,
and if a malfunction occurs in one or more units, the "malfunction" signal will be output.
The group setting operation for units (indoor units local remote controllers, independent
OA processing unit, LOSSNAY and sub system controllers) are performed on the group
setting screen.
The interlocked setting for the ventilation equipment as the OA processing unit or
LOSSNAY, etc to indoor unit is performed on the interlocked setting screen.
A maximum of the 64 most recent malfunction are displayed on the malfunction log
monitor.
The connected unit address are displayed on the refrigerant monitor screen.
Some of the indication and function that appear on the each screen can be specified to
match the needs of the user.
Main/Sub setting of the system controller.
* G-50A does not support sub controllers.
The setting of a system controller which the local remote control is prohibition enable
or disable.
Selecting of the prohibited controller which is only local remote controller or both local
remote controller and the other system controller.
The system composed of K-control type air conditioner equipment can be controlled
using the K transmission converter (PAC-SC25KAA).
Initial setting (for installation and maintenance)
*1 Each operation is available in accordance with the function of unit.
*2 Main system controller and sub system controller.
When G-50A controls another system controller or when
the system contains only G-50A:
G-50A is set as the main system controller.
* G-50A performs the group setting in this configuration.
When G-50A is controlled by another system controller:
(Example: MJ-300Gateway)
G-50A is set as the sub system controller.
* The group setting is performed by main system control-
ler.
*3 The number of connectible units may be fewer depending on the indoor unit models.
* G-50A does not
support sub
controllers.
G-50A
management range
Another system controller
management range
Unit
Unit
M-NET Gateway
management range
Management range
of G-50A
Unit
Unit
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– 7 –
NOTE:
The following group setting cannot be performed.
• Unit groups which are not under the management of the main controller and are managed by the sub system
controller.
• A common group is managed by more than two main controllers.
• A sub system controller which exceeds the management range of the main system controller of two or more.
Main system
controller
Sub system
controller
Group Group Group
Main system
controller 1
Main system
controller 2
Group Group Group
Main system
controller 1
Main system
controller 2
Sub system
controller
Group Group Group Group
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– 8 –
Display
P 4
NEXT
NEXT
G-50A
001
PROHI
BITED
01 02
1
3
12
5
4
ENTER
BACK
6
A
7 F
8 I
P
2
1 OPERATION MONITOR
2 OPERATION SETTING
3 SCHEDULE SETTING
4 MALFUNCTION
MONITOR
5 CURRENT TIME
SETTING
1 GROUP SETTING
2 INTERLOCKED
SETTING
3 REFRIGERANT
MONITOR
4 MALFUNCTION
MONITOR
5 USER SETTING
04-2002 MON
( D A Y - M O N T H - Y E A R )
3 - 2 Display Screen Overall status lamp
The lamp indicates the unit opera-
tion condition.
ON......During operation
OFF......All group are stopping
BLINKING......Malfunction
Operation setting function
Each operation and monitor of unit is
performed in collective or group unit.
Refer to section "4. User operation
(page 10)" for the detail of operation
methods.
NOTE: The temperature setting
includes a function to switch the
display between Celsius (˚C) or
Fahrenheit (˚F) (page 34).
Operation monitor function
ON/OFF operation and monitor of unit
are performed. Refer to section "4.
User operation (page 10)" for the
detail of operation methods.
User operation function
User operation menu
Continuously press
and
(2 seconds or longer)
Initial setting menu (Installation/Maintenance)
Timer setting function
The weekly schedule setting is
performed in group units.
Refer to section "4-3 Timer
operation (page 19)" for the
detail of operation methods.
Function when the timer operates
Malfunction monitor function
The unit address, error code
and the unit address which
detected the malfunction are
displayed when a malfunction
occurs.
Refer to section "4-4 Malfunc-
tion (page 23)"
Function when the unit malfunction
Current time setting
The current time setting can be
performed.
Refer to section "4-5 Current
time setting (page 24)" for the
detail of operation methods.
Function when the current time
Group setting function
This performs the same group
setting of the indoor unit, local
remote controller and sub
system controller, etc.
Refer to section "5. Initial
setting (page 25)" for detail of
operations.
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–9 –
NEXT
G-50A
ENTER
POWER
GND
12VDC
91 CN2 51 CN1RS232C
Ethernet
ABS
M-NET
BACK
6 ADDRESS SETTING
7 FUNCTION SETTING
8 IP ADDRESS SETTING
VER.
ADDRESS SETTING FUNCTION SETTING IP ADDRESS SETTING
IP ADDRESS:
SUBNET MASK:
192.168.001.001
255.255.255.000
ON
12345 678
OFF
M-NET ADDRESS: 000
16-04-2002
014 6602
12 : 45
(DETECT 014)
05-04-2002
2002
2002
2002
012 6607
09 : 12
(DETECT 012)
.
GROUP NO
NONE
INDICATE
INDICATE
1-1-2001
NONE
7 TEMP. UNIT ˚C/ ˚F
6
3
2
5
4
8
7
The collective operation switch can be performed in the user setting mode for any screen.
(Excluding menu screen)
LAN changeover switch
Refer to section "5. Initial setting (page 25)" for
explanation of the operation of these switches.
LCD contrast adjustment knob
Collective operation switch
If this switch is pressed during the
operation, a whole group stop is
performed.
LAN status lamp
Orange LED indicates action and green LED indicates link.
Service LAN connector
Refer to section "5. Initial setting" for an explanation of this connector.
Rear side
Operation
panel M-NET Transmission
line terminal
LAN (Ethernet) connector
RS-232C connector
External input/output interface connector
Refer to section "7. External input/output
function (page 38)" for the detail of op-
eration of these connectors.
DC power supply terminator
M-NET address setting
Display, or sets, the controller M-
NET address.
Refer to section "5. Initial setting
(page 25)" for a detailed expla-
nation of operation.
Function select setting
Sets the function of the controller.
Refer to section "5. Initial setting
(page 25)" for a detailed expla-
nation of operation.
IP address setting
Sets the LAN IP address.
Refer to section "5. Initial setting
(page 25)" for a detailed expla-
nation of operation.
Required function for initial settings
Interlocked setting function
This function sets either single or
multiple indoor units, the
LOSSNAY or any other OA
processing unit that interlocking
operates, as units in the same
operation.
Refer to section "5. Initial settings
(page 25)" for detail of operations.
Required function for initial settings
User setting function
The function selections of the dis-
play method and timer settings that
is displayed on the screen.
Refer to section "5. Initial settings
(page 25)" for detail of operation.
Refrigerant monitor function
The unit addresses are displayed
for each refrigerant.
Refer to section "6. Maintenance
(page 36)" for detail of operation.
Malfunction log monitor
A malfunction logging which can
store a maximum of 64 items that
can be monitored.
Refer to section "6. Maintenance
(page 36)" for detail of operation.
Start-up and maintenance functions
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4. User operation
Used the following two screens when user operation is performed.
Operation monitor screen ........ This screen displays ON/OFF and malfunction condition of unit.
G-50A normally displays this screen.
Operation setting screen .......... The unit operations can be performed by individual group or collective op-
eration. These operation include the ON/OFF, operation mode, fan speed,
temperature setting, air direction, ventilation setting, timer operation ON/OFF,
local remote controller prohibition and filter sign reset are performed by group
or collectively. In addition, this screen can also displays the room tempera-
ture of each group.
<Shifting to the operation monitor screen and operation setting screen>
•The collective operation can be performed on any screen (except for the menu screen) in the user operation mode.
<Returning to the user operation menu screen>
Press the
1
switch and
select "1 OPERATION MONITOR"
Operation monitor screen
Press the
BACK
SCREEN
switch.
User operation menu screen
Press the
2
switch and
select "2 OPERATION SETTING"
Operation setting screen
Press the
ENTER
switch.
Press the or switch to set
"MON. (MONITOR)" on the blinking dis-
play and press the
ENTER
switch.
The unit operation can be verified in
a single glance.
Refer to section "4-1 Operation
condition monitor".
Press the
BACK
SCREEN
(back screen) switch.
Press the or switch
to set "COL.(COLLECTIVE)" or
"GROUP" on the blinking display
and press the
ENTER
switch.
(Individual group
operation setting
screen)
Each unit operation
setting is performed.
(Collective
operation
setting screen)
Refer to section "4-2 Operation setting".
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1Press the
GROUP
SELECT
switch to change the display group in desired op-
eration and monitor.
2When displaying the units in a given group, press the
1
ON/OFF
switch turn
all the units in that group ON or OFF.
1Press the switch to move the " " select the group
number to be operated.
2Press the
1
ON/OFF
switch to set the displayed group unit is indicated by the
"" symbol to the on/off mode.
1Press the switch to move the " " symbol. Select
the group name to be operated.
2Press the
1
ON/OFF
switch to set the displayed group unit is indicated by the
"" symbol to the on/off mode.
*Displays up to the first 3 characters of the set group name.
(2) Display contents
*When a malfunction occurs, refer to section "4-4 Malfunction (page 23)".
Reverse: ON
Blinking: Malfunction during
units is off.
Blinking and Reverse:
Malfunction during
unit is on.
Normal: OFF
4 - 1 Operation condition monitor
•This function displays the ON/OFF/Malfunction status of specific units or group.
•ON/OFF/Malfunction status is shown by the indication corresponding to the unit or group appearing in inverse,
normal or blinking display.
•The user may select display items by unit address, group number or group name.
Refer to section "5-7 User setting (page 34)" for detail of user setting.
•During the user operation mode, this screen returns from any screen if there is no operation for approximately 10
minutes.
(1) Operation Method
•Note that operation is different for each of the following display methods.
OR
<Unit address display>
<Group number display>
<Group name display>
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4 - 2 Operation setting
•There are two methods for the operation, performing the operation classified by groups or collective operation.
4 - 2 - 1 Group operation setting
No.
1
2
3
4
Name of switches
ON/OFF switch
Operation mode
switch
Fan speed
switch
Temperature
setting switch
Function
The ON/OFF condition of the displayed
group is switched.
Used to the type of the operation mode
selection.
Note:
Operation mode can be selected ac-
cording to the function of unit.
If the unit is only cooling type
HEAT/AUTO mode may not appear
on the display.
Refer to the instruction manual of the
air conditioner for more detail.
The fan speed can be switched to four
levels. Switching may be 3 levels or 2
levels, depending on the model.
The setting temperature change is per-
formed.
Display
Operation status display
* When there is an interlocked OA processing unit or
LOSSNAY, turning this switch ON starts operation
in a [High] ventilated state.
Each time to push the switch, a mode is selected in a
sequence that goes from COOL, DRY, FAN, AUTO,
HEAT and beck to AUTO for air conditioner group.
On the group composed of independent LOSSNAY,
operation mode is selected in a sequence that goes
from HEAT RECOVERY, AUTO, BY-PASS and back
to HEAT RECOVERY.
Fan speed display
* Indicates AUTO (On the version 3.10 or later, this symbol
appears if the AUTO function is available on the indoor unit.)
4 levels
2 levels 3 levels
The setting temperature display.
The setting range change according to the operation
mode. (1°C unit/2°F unit)
COOL/DRY 19 ~ 30˚C / 67 ~ 87˚F
HEAT 17 ~ 28˚C / 63 ~ 83˚F
AUTO 19 ~ 28˚C / 67 ~ 83˚F
NOTE: The temperature setting includes a function
to switch the display between Celsius (°C) or
Fahrenheit (°F) (page 34).
Group number display
Operation
condition display
Set temperature
display
Remote operation
prohibition/permission
display
Display
Timer operation
display Function area
Room temperature display*1
Operation mode
display
Fan speed display
Air direction display
Ventilation operation
display
Filter sign display
External input
condition display
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–13 –
No.
5
6
7
8
9
0
A
B
C
Name of switches
Current time
setting switch
Air direction
setting switch
Ventilation set-
ting switch
Remote
operation
prohibit switch
Timer mode
switch
Reset switch
Group select
switch
Back screen
switch
Cursor position
switch
Function
These switches are used when the cur-
rent time is set.
The Air flow direction can be selected.
The air flow direction can be selected to
four directions and swing operation (auto
vane).
The operation mode of the interlocked
ventilation can be performed.
*Where there is no interlocked ventilation,
the operation of this switch is invalid.
* "Ventilation" is OA processing unit or LOSSNAY.
Used to prohibit for the local remote
control.
The timer operation can be performed
according to a previously set operation
pattern.
The filter sign display reset is per-
formed. The reset processing is
completed by pressing this switch two
times.
The display group is changed.
Use to back to the user menu screen.
The position of a cursor can be moved
when a cursor is appear.
Display
Refer to section "4-5 Current time setting".
Air flow direction
* On the version 3.10 or later, these airflow direction
icons appear if the corresponding functions are avail-
able on the indoor unit.
Ventilation volume setting display
PROHIBIT: Local remote control specified on the
prohibit setting screen is not possible.
PERMIT: Local remote control is possible.
Timer operation display
Filter display
Group number display
This switch displays 1 ~ 50 group numbers.
The switch can also display group names.
The menu screen will be returned.
The cursor position (blinking) moves.
ON OFF
No display
Filter
[ ]
*1: Room temperature can be displayed by selecting the room temperature display function per "5-7 User Setting"
(but limited to indoor unit group).
1ON/OFF switch
C Cursor position
movement switch
4Temperature
setting switch
5Current time
setting switch
8Remote operation
prohibit switch
Operation panel
2Operation mode
switch
3Fan speed
switch
9Timer mode
switch
7Ventilation
setting switch
0Reset switch
AGroup select
switch
6Air direction
setting switch
BBack screen
switch
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–14 –
(1) Local remote control operation prohibition setting
•G-50A can prohibit the operation of item such as connected local remote controller or sub system controller for
each group. The prohibit items are ON/OFF operation, operation mode, temperature setting and filter sign reset
operation.
1Press the
GROUP
SELECT
switch to display the group that the operation pro-
hibition setting will be performed.
2Press the or switch to set "PROH. (PROHIBIT)" on the blink-
ing display and press
ENTER
switch.
1The prohibit setting screen is displayed.
2Press the operation switch for the items to be prohibited.
•When the ON/OFF operation is to be prohibited :
1
ON/OFF
•When the operation mode is to be prohibited :
2
MODE
•When the setting temperature is to be prohibited :
4
or
7
•When the filter sign reset is to be prohibited :
DEL.
RESET
1The items selected for prohibition are shown in reverse display.
2After setting of prohibit item, press the
BACK
SCREEN
switch to go back to the
operation setting screen.
1The operation setting screen is displayed.
2Press the
0
REMOTE
PROHIBITION
switch to set "PROHIBIT [ON]".
Remote operation prohibition/permission display will
be change [PERMIT] to [PROHIBIT] and the prohibited
item set on the prohibit setting screen are shown in
reverse display.
The prohibit setting is completed.
NOTE: •The system controller that performed the local remote control operation prohibition setting can operate
the prohibited items.
•When the No.4 function select is set ON, the prohibit setting of the local remote control operating
cannot be made. For details, refer to "5-3 Function setting".
•In a LOSSNAY group, the operations of only the "ON/OFF" and "FILTER RESET" functions can be
prohibited.
•When an M-NET remote controller is used, it must be properly registered to the group for the G-50A unit
to be able to prohibit its operation.
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–15 –
(2) G-50A operation prohibition
•The operation of this controller is prohibited when an operation prohibition setting for this controller is received
from a system controller other than this controller or when an external input signal is used.
The
PROHI-
BITED
is displayed and the prohibition operation is display in reverse
display when operation of this controller is prohibited by another system
controller or an external input signal used.
The prohibition operation which is displayed in reverse display is not pos-
sible to operate in this condition.
(3) Using the function area
To select the function from the function area, use the or switch to move the cursor to the blinking to the
function of your choice and press the
ENTER
switch. The current cursor position appears as a blinking indication on
screen.
•MON. (MONITOR) : Shift to the operation monitor screen.
•PROH. (PROHIBIT) : Shift to the prohibit setting screen.
•COL. (COLLECTIVE) : Shift to the collective operation setting screen.
•M (MEMORY) : Stores the setting currently shown on the screen in memory.
•MR (MEMORY READ) : Reads the setting stored in memory and activates them for the currently displayed
group.
NOTE: •If the Level Run/Stop function is controlled via an exter-
nal input, local operation of the Run/Stop button will be
prohibited, and the timer operation function will also be
prohibited.
•If the Emergency Stop function is controlled via an exter-
nal input, local operation of the Run/Stop button during
emergency stop status will be prohibited, and the timer
operation function will also be prohibited.
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–16 –
4 - 2 - 2 Collective operation setting
•A collective operation setting and a collective prohibit setting can be performed for all the group managed by this
controller at one time.
(1) Collective operation setting
1Press the switch to set "COL. (COLLECTIVE)" in blinking
display and press the
ENTER
switch on the group operation setting screen.
2The collective operation setting initial screen is displayed.
3Select the items for operation setting on the collective operation setting
initial screen.
The operation method is same as described in section "4-2-1 Group
operation setting" (Page 12).
NOTE: The items which were not set, remain set to the same condi-
tion that were set before the collective operation was per-
formed.
4The items selected for the operation blink on the collective operation
setting screen.
5When all setting are completed, press the switch to display
the "SET" in blinking display for the indicated function area.
6Press the
ENTER
switch one time to complete this setting.
The collective setting is executed.
The collective setting takes approximately 20
seconds.
The collective setting is completed when the previ-
ous items light. (After the setting are completed,
start from step 3to perform operation again if
change operation are required.)
NOTE: The display of setting contents is erased
when shift to another screen.
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–17 –
(2) Collective prohibit setting
1Press the switch to set "PROH. (PROHIBIT)" in blinking dis-
play and press the
ENTER
switch on the collective operation setting initial
screen.
2The collective prohibit setting initial screen is displayed.
3Select the items to be prohibited or permitted on the collective prohibit
setting initial screen.
Each time to press the switch corresponding to the prohibition item, the
prohibition or permission is selected.
Prohibition setting: The prohibited item is displayed in reverse with
blinking.
Permission setting: The permitted item is displayed with blinking.
The selection method concerning to prohibit/permit item is same as de-
scribed in section "4-2-1 (1) Local remote control operation prohibit set-
ting" (page 14).
4The items selected for the prohibition or permission are displayed with
blinking.
And the "SET" is displayed with blinking in the function area.
5When all setting are completed, press the
ENTER
switch one time to com-
plete this settings.
6The collective prohibit setting is excused.
The collective prohibit setting takes approximately
20 seconds.
7The collective setting prohibition/permission item
setting is completed when the previous item light.
8After setting of prohibit/permit items, press the
BACK
SCREEN
switch to back to the collective operation set-
ting initial screen.
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–18 –
9The collective operation setting initial screen is displayed.
0Press the
0
REMOTE
PROHIBITION
switch to set "REMOTE CONTROL [PROHIBIT]".
ARemote operation prohibition/permission display ("REMOTE CONTROL
[PROHIBIT]") is displayed with blinking.
BPress the or switch to display the "SET" in blinking display for
the indicated function area.
Press the
ENTER
switch one time to complete the collective prohibit set-
ting.
CThe collective prohibit setting is executed.
It takes approximately 20 seconds.
DThe collective prohibit setting is completed when the remote operation
prohibition/permission display is change to be light.
NOTE: •The display of setting contents is erased when shift to another screen.
•The following restrictions in the collective operation settings.
1. Temperature setting
The range that can be set falls within 19˚C ~ 28˚C /67˚F ~ 83˚F regardless of the operation mode.
2. Operation mode selection, fan speed selection, air direction, etc., can be collectively set regardless
of the functions of the unit. However, actual setting to a unit without functions cannot be performed.
To obtain the correct setting contents, refer to the respective group operation setting screens.
•When an M-NET remote controller is used, it must be properly registered to the group for the G-50A
unit to be able to prohibit its operation.
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–19 –
4 - 3 Timer operation
•A weekly schedule setting can be specified for each group.
•Possible to set on the timer the schedule to prohibit operation of the local remote controller in addition to ON/OFF
schedule.
NOTE: •Always set to current time on the current time setting screen when the schedule setting is performed.
Refer to section "4-5 Current time setting".
•To perform a scheduled operation, make the settings that are explained under items (1) (p.20), (2)
and (3) (p.21), and set the Timer mode switch on the OPERATION SETTINGS screen to ON.
Refer to section "4-2 Operation setting".
•When browser monitoring, or schedule setting from central monitoring PC, was performed, the timer
screen of this function cannot be used.
•When the "Annual/Weekly Schedule" is used, the "Timer" menu will not appear on the menu screen.
•When an external input signal that corresponds to "Emergency Stop" or "Level Run/Stop" is being
input, timer operation will not be performed.
<Schedule setting function summary>
1The ON and OFF (PROHIBITION and PERMISSION) times can set in 10-minute units.
2The daily operation schedule can include up to three ON (PROHIBITION) time settings and three OFF
(PERMISSION) time settings.
3Three types (P1-P3) of daily ON/OFF pattern and one type (P4) of prohibition/permission pattern* are available
respectively, each of which can be set every to each group.
* "Prohibition/Permission" setting can only be made collectively for all applicable items; it cannot be set individually for each item.
Week day which is not set in timer pattern is displayed with (-).
In addition, it is also possible to set the schedule which has combined P1-P3 and P4 together.
(/ / ) In this case, both of ON/OFF pattern and prohibition/permission pattern are daily executed.
Any one of these options may be selected for each separate day of the week.
4The schedule patterns can be copied easy to other group by the memory and memory read functions because
the schedule contents can be recorded in the memory.
5The setting temperature or set-back value setting can also be supported during timer operation.
<Shifting to the schedule setting screen>
Press the
3
switch to select
"3 SCHEDULE SETTING".
Press the
BACK
SCREEN
switch to go back to the
user operation menu screen.
Press the
switch to move the cursor position
to P1 (or P2 or P3 or ).
(The "P1" indication blinking.)
And press the
ENTER
switch to the
P1 (Pattern 1) Schedule pattern
setting screen.
User operation menu
Press the
BACK
SCREEN
switch.
•Schedule pattern (P1~P3, ) setting
can be performed.
Schedule pattern setting screen
•The schedule contents of each group
can be monitor.
•Weekly schedule pattern setting can
be performed.
Weekly schedule setting screen
WT03945X02_En_P01-35 07.3.23, 8:13 PM19