3 - 12
Controller
MEE15K022
3. System remote controller
YKB/YLM 2nd
3-2. Advanced touch controller [AT-50B]
Operation mode
switching
Temperature setting
Fan speed setting
Air flow direction
setting
Permit/Prohibit
Operation lock
Error display
Schedule
operation
Ventilation
(independent)
Ventilation
(interlocked)
Temperature-set
limitation
System changeover
ON/OFF
Item
Description
Description
Operations
Display
:Each unit
:Group or collective
:Each block
:Each group
:Each floor
:Not available
Functions
Models with 5 air flow speed settings: Hi/Mid-1/Mid-2/Low, Auto
Models with 4 air flow speed settings: Hi/Mid-1/Mid-2/Low
Models with 3 air flow speed settings: Hi/Mid/Low
Models with 2 air flow speed settings: Hi/Low
* Fan speed setting (including Auto) varies depending on the model.
Air flow direction angles 4-angle or 5-angle, Swing, Auto
Louver ON/OFF
* Air flow direction settings vary depending on the model.
When an error is currently occurring on an air conditioner unit, the afflicted
unit and the error code are displayed.
* When an error occurs, the "ON/OFF" LED flashes. The operation monitor
screen show abnormal icon over the unit. The error monitor screen shows
the abnormal unit address and error code. The error log monitor screen
shows the time and date, the abnormal unit address, error code and source
of detection.
Night setback
setting
Switches the mode "Bypass/Heat recovery/Auto" for LOSSNAY groups.
The LOSSNAY will run in interlock with the operation of indoor unit.
The mode cannot be changed. The LED will turn ON during operation after
interlocking.
Batch-setting to temperature range limit at cooling, heating, and auto mode.
This function cannot be used with the MA remote controller.
(Depends on the indoor unit model.)
Operation mode can be switched to an optimal mode depending on indoor
temperature setting and target temperature of each group or a representative
indoor unit.
* When this function is used, the system changeover function of the outdoor
unit cannot be used.
:Available
●
AT-50B features a 5 inch color LCD touch panel.
The settings for air conditioning units can be
changed by touching the corresponding icons on
the display.
On the panel of AT-50B are 3 buttons; ON/OFF,
F1 and F2 enabling simple and quick operation.
●
One AT-50B can control up to 50 groups/units
of air conditioners.
ON and OFF operation for the air conditioner units.
The Batch Operation ON/OFF button will light up when one or more air
conditioning units are operated.
Switches between Cool/Dry/Auto/Fan/Heat
Operation modes vary depending on the air conditioner unit.
Auto mode is for CITY MULTI R2 and WR2 series only.
The operation lock can be set to the input operation of AT-50B.
Each button can be set. (Function Button 1, Function Button2, Collective
ON/OFF,Touch Panel)
Each function can be set. (Operation mode, Setting temperature, Fan speed,
Menu button)
The password for the lock release can be set.
When set as the main controller, operation of the following modes with
the local remote controllers can be prohibited.
When cooling is prohibited: Cooling, dry, automatic can not be chosen.
When heating is prohibited: Heating, automatic can not be chosen.
When cooling/heating is prohibited: Cooling, dry, heating, automatic can not
be chosen.
Weekly schedule setting up to 12 pattern is available.
In one pattern, up to 16 setting of "ON/OFF", "Operation mode", "Set
Temperature", "Fan speed", "Air flow direction" and "Permit / Prohibit local
operation" can be scheduled.
Two types of weekly schedule(Summer/Winter) can be set.
Today's schedule setting up to 5 pattern in available.
* Time setting unit: 5 minute /unit
This function helps keep the indoor temperature in the
temperature range while the units are stopped and during the
time this function is effective.
Item
Operations
Display
Use this function to check for refrigerant leak
from the outdoor unit.
* When this function is used, the gas amount
checking function of the outdoor unit cannot be
used.
This function is for CITY MULTI R2 and Y(PUMY
is excluded.) series only.
"ON/OFF" and "error/normal" are output with the
level signal.
* An external input/output adapter (PAC-YT51HAA
(sold separately)) is required.
Relays and DC power supply or other devices
must be prepared at the site.
Checking
the Gas
Amount
Specific mode
operation prohibit
(Cooling prohibit,
heating
prohibit,
cooling/heating
prohibit)
External
output
(Error output,
operation
output)
The following input with level signals or pulse
signals are available.
Level signal: "Emergency stop input" or
"Collective ON/OFF"
Pulse signal: "Collective ON/OFF" or "Local
remote controller prohibit/permit"
One input can be selected from those above.
* An external input/output adapter (PAC-YT51HAA
(sold separately)) is required.
Relays and DC power supply or other devices
must be prepared at the site.
External
input
(Emergency
stop
input, etc.)
Main system
controller
/Sub system
controller
Function
Buttons
(F1 Button,
F2 Button)
AT-50B can be set to Sub System controller.
When connecting multiple system controllers,
designate the system controller with many
functions as the "Main", and set the system
controllers with few functions as the "Sub".
The F1 button and the F2 button can be set as a
run button of the following collective operation.
(Setback/Schedule/Operation Mode/Temperture
Correction/Remote Controller Prohibition)
The ON/OFF, operation mode, setting temperature, fan speed, air direction, filter
sign reset operations, and timer using the local remote controllers can be prohibited.
Only ON/OFF and filter reset can be prohibited for the LOSSNAY group.
* The settable items vary depending on the models.
Dual
Set
Point
External dimension
Unit:mm[in.]
180[7-2/16]
120[4-12/16]
30[1-3/16]
46[1-13/16]46[1-13/16]
83.5[3-5/16]
The temperature can be set within the following range.
Cool/Dry
: 19°C - 35°C/67°F - 95°F
Heat
: 4.5°C - 28°C/40°F - 83°F
Auto (single set point)
: 19°C - 28°C/67°F - 83°F
Auto (dual set points)
[Cool]
Same as the set temp. range for Cool mode.
[Heat]
Same as the set temp. range for Heat mode.
* Set temperature range varies depending on the model.
