MicroTech

Daikin MicroTech User Manual

Daikin MicroTech

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Operation and Maintenance OM 1280-2

Group: Controls

Part Number: 910276581

Date: January 2020

MicroTech

®

Unit Ventilator Controls

for Daikin Applied Classroom

Unit Ventilators

Table of Contents

Default Chapter2
- Table of Contents2
Introduction4
Hazardous Information Messages4
Revision History4
Acronyms/Abbreviations5
Getting Started6
Local User Interface (LUI) Keypad6
- Display Format6
- Using the LUI Keypad6
- Keypad Functions6
- Keypad Navigation6
Description of Operation10
- State Programming10
UVC Unit Modes11
- Off Mode11
Discharge Air Temperature Control12
- Discharge Air Temperature Resets12
Heat Mode (Super State)14
- Heat State (Mechanical Heating)14
- Electric Heat Control14
- Wet Heat Valve Control16
- Wet Heat Face and Bypass Damper and End-Of-Cycle Valve Control16
- End-Of-Cycle Valve Interlock with Low Outside Air Temperature17
- Defrost State - Air-Source Heat Pump Only17
- Defrost State - Water Source Heat Pump Only17
- Low Limit State17
Emergency Heat Mode (Super State)18
- Full Heat State18
Cool Mode (Super State)20
- Economizer State21
- Economizer Compressor/Water21
- Compressor/Water State21
- DX Split System Cooling21
- Chilled Water Valve Control22
- Chilled Water Face and Bypass Damper and End of Cycle Valve Control22
- Reheat State23
- Reheat/Low Limit State23
- Can't Cool State23
Air Tempering Mode23
- Dehumidification Mode23
- Passive Dehumidification State (Optional)24
- Active Dehumidification State (Optional with Reheat Units)24
Fi25
Special Purpose Unit Modes25
- Pressurize Mode25
- Depressurize Mode25
- Purge Mode25
- Shutdown Mode25
- Energy Hold off Mode25
Unit Mode Priority26
Occupancy Modes27
- Occupied Mode27
- Unoccupied Mode27
- Standby Mode27
- Bypass Mode27
Additional Occupancy Features29
- Network Occupancy Sensor Capability29
- Internal Daily Schedule29
- Remote Wall-Mounted Sensor Tenant Override Switch29
- Remote Wall-Mounted Sensor Status LED29
- Space Temperature Setpoints29
- Network Setpoint Capability29
- Network Setpoint Offset Capability29
- Network Setpoint Shift Capability30
- Network Space Temperature Sensor Capability30
- Remote Wall-Mounted Sensor with +/-5°F Adjustment (Optional)30
- Remote Wall-Mounted Sensor with 55°F to 95°F Adjustment (Optional)30
- Control Temperature30
- Effective Setpoint Calculations31
Proportional Integral (PI) Control Loops32
- PI Control Parameters33
- Proportional Band33
- Integral Time33
Indoor Air Fan Operation34
- Auto Mode34
- Manual Fan Mode34
- Occupied, Standby, and Bypass Operation34
- Unoccupied Operation34
- Cycle Fan34
- Off Delay34
- Fan Control34
- 3-Speed Fixed34
- 3-Speed Adjustable35
- Variable Speed Fan35
Outdoor Air Damper Operation35
Economizer Operation36
- Temperature Comparison Economizer (Default)36
- Temperature Comparison with OA Enthalpy Setpoint Economizer (Optional)36
- Temperature Comparison with Enthalpy Comparison Economizer (Optional)36
- Network Space Humidity Sensor Capability37
- Network Outdoor Humidity Sensor Capability37
- CO Demand Controlled Ventilation (Optional)37
- Network Space CO Sensor Capability37
- ASHRAE Cycle II37
Compressor Operation38
- Compressor Cooling Lockout38
- Compressor Heating Lockout38
- Compressor Minimum on and off Timers38
- Compressor Start Delay38
- Reversing Valve Operation38
- Motorized Water Valve Delay38
- Outdoor Air Fan Operation38
Water Coil Leaving Air Thermostat (Freeze-Stat)38
- Valve Control38
- Face and Bypass Damper Control39
2-Pipe Changeover Heating/Cooling Availability39
- Source (Water-In) Temperature Sensor39
- Network Source (Water-In) Temperature Capability39
- Source (Water-In) Temperature Sampling39
External Binary Inputs40
- External Binary Input 140
- External Binary Input 240
- External Binary Input 340
External Binary Outputs41
- External Binary Output 141
- External Binary Output 241
- External Binary Output 341
UVC Inputs and Outputs42
Trending Parameters44
Fi46
UVC Configuration Parameters46
Fi53
Alarm and Fault Monitoring53
- Alarm Types53
Sensor Faults and Failures54
- Fault Sequences54
Troubleshooting Temperature Sensors62
Troubleshooting Humidity Sensors63
Troubleshooting Carbon Dioxide (CO 2 ) Sensors63

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Daikin MicroTech Specifications

General

Brand	Daikin
Model	MicroTech
Category	Fan
Language	English

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