GREE DC Inverter Multi VRF System II Service Manual
15
CONTROL
1 Units’ Control
1.1 Schematic diagram of units’ control
1.2 Interpretation on the schematic diagram
ƹ High pressure switch is used to identify system’s high and low pressure. When pressure is too high,
the switch will break off and send a signal to main board. Main board will pass this signal to controller,
where the error will be displayed, and stop unit from working.
ƹ High/low pressure sensor is used to test unit’s high/low pressure and send real-time data to
controller, which will control each unit’s output according to the control logic.
ƹ Temperature sensors are used to test the tube temperature of the unit and send data to the controller,
which will control each unit’s output according to the control logic.
2 Remote Monitoring System
2.1 General introduction
Gree CAC Remote Monitoring System is an automatic central management system as well as an
intelligent power management system based on internet or local area network. It can provide a complete
set of air conditioning solutions, including remote monitor, malfunction alarms and visual management,
for the real-time, safe and efficient management of air conditioners.
Gree CAC Remote Monitoring System can save your cost on human resources and equipment
management. User can check the running status of air conditioners, turn units on or off, set temperature
or other functions just by means of a browser (e.g. IE, Firefox, Chrome) in every corner of the world.
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