INSTALLATION & OPERATIONS GUIDE | MICROSET 4
© Honeywell LT-MS4IOG Rev. 04 | Revised October 2015
4
Contents
Quick reference 5
Introduction 7
Specifications 8
Mounting 9
Wiring 14
Wire specifications 14
Power supply guidelines and requirements 14
Microset 4 power ratings 14
Power supply grounding and wiring 14
MS/TP LAN wiring 15
Terminating MS/TP LAN cabling 16
Grounding the MS/TP LAN shield 16
Terminating resistors 16
Wiring the wall sensor 17
Operational overview 18
Hotel vs. office modes 18
Fan-control vs. no-fan-control modes 18
Cooling and heating setpoint calculation 18
After-hours override operation 18
Housekeeping override operation 19
English and metric units 19
Outside air temperature (OAT) display 19
LCD backlight operation 19
Operating mode specifics 20
Enabling operating modes 21
Office modes 21
Hotel modes 24
Operating mode screens 27
Setting the MAC address and BACnet device instance 34
Service mode 35
Field Service Mode 38
Balance Mode 42
Custom Codes Mode 43
Settings Mode 43
Locking the Screen 45
BACnet object and property reference 46
Microset 4 objects 46
Object properties 47
BV and AV assignments 49
Troubleshooting 51
Appendix 52
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