Mitsubishi Electric LGH-15RX5 -E Instruction Manual page 82

Examples
If ON and OFF times have both been set at the simple timer, operation and display are as
indicated below.
Example 1:
Start the timer, with ON time set sooner than OFF time
ON Setting: 3 hours
OFF Setting: 7 hours
Example 2:
Start the timer, with OFF time is sooner than ON time
ON Setting: 5 hours
OFF Setting: 2 hours
Using the Night Purge
Night purge operation is used in the summer to automatically ventilate a room
at night while the air conditioner is stopped, to discharge accumulated heat and
thereby reduce the air conditioning load the next morning.
If Night purge is enabled per the "Installation Manual" [5. Function Selection [5] (8)],
night purge operation will be performed based on the flowchart shown at right.
From 1:00 A.M. to 6:00 A.M, "Night Purge" indicator is shown on the screen (at
1
• The fan speed will revert to the last setting before the Lossnay unit was
stopped.
• Night purge operation is terminated in any of the following conditions (1 to
4), and is not resumed until the start conditions of the next day are reached.
1 Between 6:00 and 0:59
2 When the operation is stopped between 1:00 and 6:00 with a deluxe remote
controller or system controller
3 When the operation is switched on or off between 1:00 and 6:00 by a
scheduled timer (Weekly timer)
4 When the operation is switched on or off between 1:00 and 6:00 by an air
conditioner, an external control input or a remote input
Note:
• Night purge can be performed when the clock use setting is ON (use clock) in
Function Selection.
• The Function Selector cannot be switched during Night purge operation.("Locked"
2 will blink.)
• Night Purge cannot be used with the Simple timer.
• Night purge settings can be checked in the Function Selection mode.
• When more than one Lossnay units are running, the temperature is measured by
the main Lossnay.
• Night purge is not performed when "CENTRAL" is displayed.
• Do not use the night purge function if fog or heavy rain is expected.
Rain water may enter the unit during the night.
C-82
At Timer Start Display shows the timer's ON
setting (hours remaining to ON).
Display changes to show the
At 3 hours after timer's OFF setting (hours
remaining to OFF).
timer start
The time displayed is OFF setting
(7 hours) – ON setting (3 hours)
= 4 hours.
At 7 hours after The Lossnay unit goes off, and
will remain off until someone
timer stop
restarts it.
At Timer Start Display shows the timer's OFF
setting (hours remaining to OFF).
Display changes to show the
At 2 hours after
timer's ON setting (hours
timer start
remaining to ON).
The time displayed is ON setting
(5 hours) – OFF setting (2 hours)
= 3 hours.
At 5 hours after The Lossnay unit comes on, and
will continue to run until someone
timer start
turns it off.
2
Night Purge mode is active; no operation
1:00 A.M.
No
Outside
No
temperature 17°C/28°C
or more (within 24
hours)
Temperature monitoring
operation (5 minutes)
Indoor > 22°C
and
Indoor - Outdoor > 5°C
Yes
Night Purge operation
(By-pass ventilation)
6:00 A.M.
Finish Night Purge
operation (Stop)
Using the operation lock
Locking the remote controller buttons (Operation Lock)
■ If you wish, you can lock the remote controller buttons. You can use the Function
Selection of remote controller to select which type of lock to use. (For information
about selecting the lock type, see section "Installation Manual" [5. Function
Selection [2] (1)]
Specifically, you can use either of the following two lock types.
1 Lock All buttons:
2 Lock All Except [
Note:
The "Locked" indicator appears on the screen to indicate that buttons are currently
locked.
"Locked" will be displayed when operation is locked via Function Selection.
1 ).
In addition,"Locked" will be displayed during Night purge, external fan speed
adjustment input (automatic fan speed), fan speed and function selector adjustment
input, Function Selection mode when using two remote controllers, and also in
maintenance mode.
<How to Lock the buttons>
1. While holding down the FILTER button 4, press and hold down the [
button 1 for 2 seconds. The "Locked" indication appears on the screen (at
indicating that the lock is now engaged.
* If locking has been disabled in Function Selection of remote controller, the
screen will display the "NOT AVAILABLE" message when you press the buttons
as described above.
2
The outdoor temperature (OA) setting can
be selected either 17°C or 28°C by using
Yes
Dip-Switch (SW2-7) in the Lossnay control
box. Refer to the remote controller instillation
manual for more information.
Yes
No
55-minute stop
No
Yes
Night Purge
operating
No
Locks all of the buttons on the remote controller.
ON/OFF] button:
Locks all buttons other than the [
button.
Yes
ON/OFF]
1
"Locked"
Indicator
ON/OFF]
1 ),
1