Mitsubishi Electronics PAC-YT34STA User Manual

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31 
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10. Specifications 
10-1. Product functions 
•  This controller can control up to 50 air conditioners and LOSSNAY with a daily schedule either 
collectively or in groups.   
•  This controller has only a schedule setting function and must be used with another system 
controller. When used independently, only the air conditioner's ON/OFF status and error status 
will be monitored (operation status display). In addition to schedule setting, the units can be 
turned ON/OFF and stopped and the timer can be reset either collectively or in groups with switch 
operations. 
The details of the functions are listed below. 
<List of system remote controller functions> 
Function Details 
ON/OFF
 
ON/OFF operations can be carried out collectively or for each group.
 
Operation
 
Timer reset (*4)
 
The timer setting details can be disabled collectively.
 
Setting details
 
ON/OFF 
COOL/HEAT 
Room temperature adjustment (TEMP.) 
Operation prohibit (ON/OFF, operation mode, setting temperature)
 
Number of settings 
Number of setting patterns: 9 
(Operation for a week can be set by selecting one of nine patterns for each 
day.) 
Number of operations: Up to 16 operations can be set in one pattern. 
Timer
Time setting unit 
The item can be set in five-minute units. 
Time 
The current time and day can be displayed. 
Error 
The address of the faulty unit and the error code are displayed on the LCD. 
Normal 
functions
 
Monitor
ON/OFF status (*5) 
The ON/OFF status of the unit is displayed on the LCD when GROUP is 
selected. 
Group setting 
Set the unit (indoor unit, LOSSNAY, remote controller, slave system 
controller) group. 
Operation
 
Interlocked unit setting 
Set the LOSSNAY and indoor unit interlock. 
Master system 
controller/Slave system 
controller (*1) 
Set the master and slave system controllers. 
Operation prohibit setting
Enable/disable 
Set whether to prohibit operation with the local remote control using this 
controller or with another controller. 
Celsius/Fahrenheit display Set the set temperature display to a Celsius or Fahrenheit display. 
Prohibit range 
To prohibit an operation, set whether to prohibit only the remote controller or 
to also prohibit the other controllers. 
System remote control own 
address 
Set the schedule timer's address (Refer to the Installation Manual.) 
External input 
Emergency stop level input, ON/OFF level input, ON/OFF and operation 
prohibit/enable pulse input 
Default  
setting 
function
 
System
(*3)
 
External output 
ON/OFF status output, error/normal state output 
Indoor unit, LOSSNAY 
Maximum 50 units 
Number of indoor units and 
LOSSNAY in one group 
1 to 16 units (The indoor unit and LOSSNAY cannot be registered in the same 
group.) 
Number of local remote 
controls in one group 
0 to 2 units 
Number of system 
controllers that can be 
controlled by one group (*2)
0 to 4 units (Note that this includes the number of local remote controllers 
used in one group) 
0 to 3 units in a group having one local remote controller 
System 
limits
 
Number of 
registered 
units 
Number of indoor units 
interlocked with one 
LOSSNAY 
0 to 16 units 
(*1)  Refer to page 30. 
(*2)  This controller (schedule timer) is one of the system controllers. 
(*3)  Refer to page 28. 
(*4)  Check the operation status (operation mode, set temperature, etc.) of other air conditioners with the system 
controller being used. 
(*5)  These displayed details are the schedule setting details. These are not the air conditioner operation status 
monitor details.