McQuay MWM Service Manual page 21

MCQUAY Service Guide Book
Operating Guide
1. LCD Display
•
Upon power up of the unit, the LCD
displays the main display screen
2000/01/0
Status
Mode
Set Temp
2. "ON/OFF" Switch
•
Press the ON/OFF button for 1 second to
switch on the unit if the status shows OFF.
The status will change to ON. The
ON/OFF LED will light up.
3. HEAT Button
•
Press the HEAT button for 1 second if
heating is required.
4. COOL Button
•
Press the COOL button for 1 second if
cooling is required.
5. ALARM Button
•
Press the ALARM button to view or clear
the alarm history.
•
The panel can keep up to 20 faults/alarm
warning records.
[SAT] 12:00am
: OFF
: Heating
: 24°C
▼
6. ECS Button
7. Downward Button
•
Press the button once to view the
Compressor(s) On, Off or Defrost
Status.
•
Press the button again to view the
temperature for Return Air and Outdoor
Air.
•
Press the button again to view the
Selected Type for Unit, Number of
Compressor used, Indoor Fan Option,
Model and EEPROM version.
8. Upward Button
•
Press the button to return to previous
screen(s)
9. ENTER Button
•
Press the button to enter [Main Menu].
•
There are 6 sub menus in [Main Menu].
Operation Menu > Setting Menu >
Timer Menu > Alarm Menu > Warning
Menu > Display Menu.
•
Press
press ENTER to enter into the sub menu
or press ESC to exit to main display
screen.
•
Details please refer to Rooftop Panel
Operation Manual.
•
Press to exit to previous Menu.
20
Handset Operating Guide
or to select sub menus,