Specifications

Centralized
Remote Controller
System example
System
remote
controller
PZ-52SFPZ-52SF
LOSSNAY
Power supply
unit
LOSSNAYLOSSNAY
PAR-21MAA
PAR-21MAA
System remote controller PAC-SF44SRA
FUNCTION
UNITS
ON/OFF
MODE SELECTION
TEMPERATURE SETTING
FAN SPEED SETTINGS
AIR FLOW DIRECTION SETTING
PERMIT/PROHIBIT FUNCTION
ERROR INDICATION
VENTILATION INTERLOCK
EXTERNAL INPUT
EXTERNAL OUTPUT
DESCRIPTION
PAC-SF44SRA
50 units/50 groupMax No.Units
Run and stop operation
Switches between Cool/Dry/Auto/Fan/Heat.
Operation Mode will vary depending on the
indoor unit. Auto mode is available with only
R2 and WR2 systems
Sets the groups temperature control.
Values in
parentheses are for the medium-temperature indoor unit.
Cool/Dry:19-30°C [14-30°C] / 67-87°F [57-87°F]
Heat :17-28°C [17-28°C] / 63-83°F [63-83°F]
Auto :19-28°C [17-28°C] / 67-83°F [63-83°F]
Models with 4 air flow speed settings: Hi/Mid-2/Mid-1/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 angles: 4-angle or 5-angle, Swing, Auto,
Louver ON/OFF
Run/Stop,Temperature Setting,Mode Selection
and Filter Reset functions can be prohibited.
Displays a 4 digit code and the affected
unit address
Allows the group to be interlocked with a heat
recovery Lossnay unit
On/Off/Fire Alarm
On/Off/Faults
• The group setting is kept in nonvolatile memory.
No need to worry about re-setting at power
failure.
• No individual AC power supply is needed.
The power can be supplied from one outdoor unit
(R410A) or Power supply unit.
One system controller can control up to fifty indoor units from one location. The PAC-SF44SRA also has
hardwired connection available (On/Off input, fire alarm input, run output, fault output).
System Controller
Displays
Operation
• Dimensions:130(W) x 120(H) x 19(D) mm
:5-1/8(W) x 4-23/32(H) x 3/4(D) in.
System example
System
remote
controller
Schedule timer
Power supply
unit
Simple
PAC-SE51CRA
PAR-F27MEA
PAR-21MAA
LOSSNAY
Schedule timer PAC-YT34STA
• The schedule group setting is kept in nonvolatile
memory. No need to worry about re-setting at
power failure.
• No individual AC power supply is needed.
The power can be supplied from one outdoor unit
(R410A) or Power supply unit.
Mitsubishi Electric controllers are complimented by a weekly programmable timer, being able to control up
to fifty indoor units. The PAC-YT34STA also has hardwired connection available (On/Off input, fire alarm
input, run output, fault output).
FUNCTION
UNITS
ON/OFF
SCHEDULE
FUNCTION
CURRENT TIME
ERROR INDICATION
EXTERNAL INPUT
EXTERNAL OUTPUT
DESCRIPTION
PAC-YT34STA
50 units/50 groupMax No.Units
Run and stop operation
On/Off
Mode:Cool/Heat/Auto
Set temperature:19°C to 28°C [67°F to 83°F]
Operation Prohibit: On/Off, Mode, Set temperature
Weekly timer for each group
9 setting patterns + no setting
16 operations per day
5 minutes
Set the time
Displays a 4 digit code and the affected
unit address
On/Off/Fire Alarm
On/Off/Faults
Programmable Timer
Operation
Displays
• Dimensions:130(W) x 120(H) x 19(D) mm
:5-1/8(W) x 4-23/32(H) x 3/4(D) in.
Content
Number
Unit