McQuay MWH

21
Sequential Controller
Outlook
Operating Guide
1. “ON/OFF” Switch
 •Pressoncetostarttheairconditioningunit.
• Press again to stop the unit.
• The operation lamp next to the key lights up and goes off respectively when the unit is
running or not running.
• Caution : In the case when the ON/OFF key is pressed immediately after the operation is
stopped, the unit will not restart until 3 minutes later to protect the compressor.
2. Selecting Operating Mode
• Press the MODE key to select the type of operating mode. Consecutive press of the key
switches the operation over “COOL”, “HEAT”, “AUTO” and “FAN”
3. SAVE Mode
• Press the SAVE key to select the energy saving function. This option is only available for
“COOL”, “HEAT” and “AUTO” modes.
A : Time display
B : Error indication
C : Compressor running display
(up to 4 compressors)
D : Key lock display
E : Heat display (up to 2 heaters)
F : Energy saving mode display
G : Compressor defrost cycle
display (up to 4 compressors)
H : Operation mode display
I : Temperature set display