Rooftop Panel - McQuay MWM Service Manual

MCQUAY Service Guide Book
•
When it is activated in HEAT mode, the
set temperature will be decreased 1°C
after 30mins, 2°C after 1 hour and 3°C
after 2 hours.
5. Temperature Setting
•
To set the desired room temperature,
press
decrease the set temperature in the range
of 16°C to 30°C.
•
Press both
simultaneously to toggle between °C and
°F setting.
6. Air Swing
•
Press the SWING key to activate the
automatic air swing function.
7. Time Setting
Real time clock
•
Press the CLOCK key to activate set
clock mode. Press again to disable set
clock mode.
•
Under set clock mode, the time of the
present day can be set by pressing the
respective MINUTE, HOUR and DAY key.
7 days timer
•
The unit has 3 event functions; each
event has an ON TIMER and an OFF
TIMER. Press
TIMER/OFF TIMER) will enable Event 1
timer setting mode. Press same key again
will enable Event 2 timer setting mode.
Press the 3rd times will enable the Event
3 (Event handset) timer setting mode.
Subsequent key pressed the unit will quit
from timer setting mode.
Set Event 1 and Event 2 Timers
•
Under timer setting mode, "SET TIMER"
will be shown on LCD and blink at 0.5 sec
interval. For Event 1 Timer setting, 'ON' or
'OFF' indication will appear and digit "1"
will be displayed on the top left corner of
the LCD. 'ON' or 'OFF' indication and digit
"2" will be displayed during Event 2 timer
setting. The timer setting can be changed
through pressing the DAY key, HOUR key
or MINUTE key. If
there is no further time related (DAY,
HOUR and MINUTE) key is pressed, the
unit will quit from the timer setting mode.
Set Event 3 Timer via remote control (Optional)

4.10 Rooftop Panel

or to increase or
and
the timer key
•
This timer can be controlled separately
through remote control as well as ON
TIMER or OFF TIMER keys. Timer 3 can
be set like timers 1 and 2 like above
except the DAY setting is not provided as
this timer setting is valid everyday. An
indicator '3' will display during the Event 3
timer setting mode. 'ON' or 'OFF' will blink
at 0.5 sec interval during the timer setting.
If there is no further time related (DAY,
HOUR and MINUTE) key is pressed, the
unit will quit from the timer setting mode.
Activating and canceling timers
•
These timers will not trigger if the timer is
not active. To activate the timers, press
the TIMER ACTIVE key unit "TIMER
ACTIVE" appears on LCD. This symbol is
to indicate Event 1, Event 2 and/or Event
3 timers are active. Pressing the same
steps will deactivate the timers and
"TIMER ACTIVE" symbol will disappear.
•
Another method to cancel the timers
setting is changed all the hour setting of
the timers to null, the LCD display --:--,
then this respective timer will be disable.
8. Other Function
Key Lock
•
Press
consecutively to activate the key lock. A
(ON
"KEY LOCK" symbol will appear on the
LCD screen. At this point, only the
ON/OFF key is valid.
•
To disable the key lock, again press the
MINUTE key 3 times consecutively.
Fan Lock
•
When the DAY key is press 3 times
consecutively within 1.5 sec, the fan
symbol will disappear and fan key will be
inhibited. Press the DAY key 3 times to
cancel the fan lock function.
19
Handset Operating Guide
the key
MINUTE
3 times