Daikin McQuay MicroTech III - Page 35

35 pages

To Previous Page

35 ED 15121

This document contains the most current product information as of this printing. For the most up-

to-date product information, please go to www.mcquay.com.

Main Page

Table of Contents2
Limited Warranty4
Notice4
Revision History4
Software Revision4
Reference Documents4
Introduction5
Chiller Models5
Controller Data Points5
Modbus Protocol Information6
Compatibility6
Protocol Definitions6
Valid Function Codes6
Table 1. Valid Function Codes6
Valid Error Codes7
Modbus Addressing7
Modbus Data Point7
Table 2. Valid Error Codes7
Example Data Point: Chiller On/Off8
Configuring the Unit Controller8
Typical Application: Minimum Integration9
Display Important Data Points9
Table 3. Significant Data Points9
Protocol Point Summary10
Register Mapping10
Table 4. Chiller Data Points10
Table 5. Circuit Data Points14
Table 6. Compressor Data Points15
Table 7. Pump Data Points15
Table 8. Miscellaneous Data Points15
Alarm Data Points16
Table 9. Warning Alarms16
Table 10. Problem Alarms16
Table 11. Fault Alarms17
Detailed Data Point Information19
Active Capacity Limit Output19
Active Setpoint19
Actual Capacity19
Alarm Digital Output19
Application Software Version20
Capacity Limit Setpoint - Network20
Chiller Capacity Limited20
Chiller Current20
Chiller Enable Output21
Chiller Enable Setpoint21
Chiller Local/Remote21
Chiller Location21
Chiller Mode Output21
Chiller Mode Setpoint - Network22
Chiller Model22
Chiller On/Off22
Chiller Status22
Clear Alarms - Network22
Compressor Discharge Refrigerant Temperature23
Compressor Run Hours23
Compressor Starts23
Compressor Suction Refrigerant Temperature23
Condenser Refrigerant Pressure24
Condenser Saturated Refrigerant Temperature24
Cool Setpoint - Network24
Current Date & Time24
Evaporator Entering Fluid Temperature25
Evaporator Flow Switch Status25
Evaporator Leaving Fluid Temperature25
Evaporator Pump Run Hours25
Evaporator Pump Status25
Evaporator Refrigerant Pressure25
Evaporator Saturated Refrigerant Temperature26
Fault Alarm Code26
Fault Alarm Index26
Ice Setpoint - Network26
Outdoor Air Temperature26
Problem Alarm Code26
Problem Alarm Index27
Run Enabled27
Units27
Warning Alarm Code27
Warning Alarm Index27
Alarms28
Alarm Classes28
Fault Alarms28
Problem Alarms28
Warning Alarms28
Alarm Handling28
Alarm Digital Output28
Clear Alarms - Network29
Active Alarms29
Table 12. Modbus Warning Alarms29
Table 13. Modbus Problem Alarms30
Table 14. Modbus Fault Alarms31
Appendix A: Ascii Characters Conversion Table33
Index34

Daikin McQuay MicroTech III - Page 35

Table of Contents

Related product manuals