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Design & installation Guide For McQuay MDS Multi System
2.3 Operation of the Controller
2.3.1 Main features
Both wire controller (using the key on board) and remote controller (equipped with infrared receiver to
receive the order from the remote controller ) to control the unit, and to perform such functions as
parameter setting , working mode setting, status display and malfunction indicating.
Features:
■ Working mode Cooling only unit: Cooling/air supply/dehumidity; Heat pump unit: Cooling/heating
/air supply/dehumidity
■ Indoor units have several speed: auto/low/medium/high.
■ Temperature setting range: 16℃ /61 F～30℃ /78 F.
■ Timer for ON/OFF. Max. time is 24 hours
■ Sleep
■ Auxiliary electric heater & hot water heater control and the wind wing function.
■ LCD indicator is available to slow the setting temperature, working mode, real time, week, and
status of the units.
2.3.2 Operation of the line controller
■ Wire controller panel button
For the unit without wind wing For the unit with wind wing
■ Operation manual
● The omitted parameter
When the function of auto restart after power failure is not active: The unit is OFF and the
temp is 24℃/75 ，cooling mode, high speed, No sleep function, no defrost, no wind wing,
no electric heater.
When the function of auto restart after power failure is active: the unit is the same as that
before power failure.
● Temp setting
In normal mode condition, press“△”or “ ”to increase the temp by 1 ℃ or 1 Temp
adjustment range is 16-30℃ (or 61-86 When the temp reach the upper limit or floor limit, the
“△”or “ ”is invalid.
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