Daikin MicroTech MT2300 - Table of Contents

MICROTECH 2300 UNIT CONTROLLERDAIKIN APPLIED
2
TABLE OF CONTENTS
Safety Information ............................3
Hazard Identication ..........................3
Safety Considerations .........................3
Introduction..................................3
Connections and Terminals ....................4
MT2300 Unit Controller & MT2310 I/O Board
Connections ................................4
Unit Controller and Control Modules
I/O Descriptions..............................5
Replacing Unit Controller ......................6
Conguration DIP Switches ....................6
Functionality .................................8
Operating Modes.............................8
Safety Inputs (HPS, LPS, SLTS, COS) ............8
Control Outputs .............................9
LED Indicators...............................9
Operation...................................10
Start-Up...................................10
Fan Speed Selection.........................10
Sequence Of Operation ......................11
Electric Heat Controls ........................13
Unit Status.................................14
Remote Shutdown...........................14
Thermostat Inputs ..........................14
Optional Features............................15
Heating Source Selection .....................15
Hydronic Heat ..............................15
Two Compressor Option .....................15
Dehumidication ............................15
Waterside Economizer .......................17
Fault Modes.................................18
Brownout ..................................18
High / Low Pressure Faults (HP/LP) .............18
Low Suction Temperature Fault Heating ..........18
Low Suction Temperature Fault Cooling /
Dehumidication ............................19
Condensate Overow ........................19
Fan Operation During Most Modes,
Faults and Shutdowns........................19
Faults and Modes ...........................20
Troubleshooting .............................22
MT2300 Unit Controller LED Faults .............22
A2L Detection and Mitigation ..................25
A2L Leak Detection System ...................25
A2L Leak Mitigation..........................25
A2L Leak Detection Sensor and
Board Service ..............................25
A2L Leak Detection Sensor and
Board Troubleshooting and Diagnostics ..........25
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