McQuay MDS300B Guia de Instalação Página 29

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Design & installation Guide For McQuay MDS Multi System
C H A P T E R
2
Units Control
2.1 Introduction of Controller
MDS system is controlled by the micro-computer. Several types of controller are available, including
wireless controller, wire controller, wire controller +remote controller and central controller. One wireless
controller can control one unit, one wire controller can control one unit or up to 48 units, while central
controller can control up to 512 units (32groups).
2.2 Main Functions
Cooling./heating/auto/air supply/dehumidity mode are available
LCD wire controller and remote controller are available
Digital scroll compressor is used to reduce the start/stop times
Electronic expansion valve is used to control the refrigerant flow
One outdoor unit can connect up to 48 indoor units
Central control is available
Both the indoor and outdoor units have two speeds
Timer for ON/OFF
Energy saving can be setting when the unit is running in cooling or heating condition
High/low pressure protection for the compressor
Overload protection for the fan motor in indoor unit and outdoor unit
Anti-icing function for the coil of indoor unit
Function of auto restart after power
Auto defrost and manual defrost can be set
Auto check function for the sensor malfunction
Overheat protection for the coil of indoor unit
Three minutes delayed protection when auto restart after power failure
Malfunction indicating
Temperature unit can be or F .
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