Laserfiche WebLink
OPC@Bo, <br /> UNIT INFORMATION N M2 BACnet® <br /> LENNOX Corp . 0926-L11 Module <br /> ® 10/2014 (Supersedes4/2014 ) <br /> tA13 <br /> Service Literature <br /> Table of Contents The M2 BACnetO Module has been developed to <br /> General . . . . . . . . . . . . . . . . 1 communicate with building automation systems that <br /> M2 BACnet Module Specifications/Default Settings 1 support the BACnet Application Specific Controller <br /> Cabling Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ( B-ASC ) device profile . <br /> Network Bus Termination . . . . . . . . . . . . . . . . . . . . . . . 2 <br /> M2 BACnet Module Installation . . . . . . . . . . . . . . . . . . 2 <br /> Lennox BACnet Topology 3 M2 BACnetO module is certified to ANSI/ASHRAE <br /> General BACnet MS/TP guidelines 0 0 aemonamms 0 0 a 3 135 -2008 and is BTL Listed , <br /> Lennox Control Requirements . . . . . . . . . . . . . . . . . . 3 <br /> Prodigy Control Mode Options . . . . . . . . . . . . . . . . . . 3 Table 1 . M2 BACnet® Module Specifications and <br /> Backup Sensor Modes . . . . . . . . . . . . . . . . . . 0 . . 6 6 0 . 3 Default Settings <br /> Control Mode Descriptions 5 Environment <br /> Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 <br /> Operating temperature 40F to 155E <br /> Communication Check Out Table . . . . . . . . . . . . . . . . 6 range <br /> Device Objects and Property Ranges . . . . . . . . . . . . 6 <br /> Lennox Proprietary Objects . . . . . . . . . . . . . . . . . . . . . 7 Storage temperature range 40F to 185E <br /> Compressor ( 136 ) . . . . . . . . . . . . . . . . . . . . . . . . 9 8 RH 10-95% RH non-condensing <br /> Blower Object ( 129 ) . . . . . . . . . . . . . . . . . . . . . . . . 8 Field Connections <br /> Heating Object ( 130) . . . . . . . . . . . . . . . . . . . . . . . 9 BACnetO MS/TP See PIC statement on Page 38 . <br /> Economizer Object ( 131 ) 10 <br /> Discharge Air Object ( 133 ) . . . . . . . . . . . . . . . . . . 10 Transceiver RS485 <br /> Space Air Object ( 133 ) . . . . . . . . . . . . . . . . . . . . . 11 Connector Three-position terminal block ( + <br /> Outdoor Air Object ( 133 ) . . . . . . . . . . . . . . . . . . . . 11 G — ) <br /> Analog Output Objects . . . . . . . . . . . . . . . . . . . . . . . . a 11 Baud Rate Selectable 9.6 , 19. 2 , 38 .4, 76. 8K <br /> Analog Input Objects a a 0 a a a a 0 a I & a 4 4 0 0 0 a a 0 a I a 0 0 W 12 Cable Type Twisted pair w/shield , 22AWG min . <br /> Analog Value Objects . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Belden type 88761 or 8761 . Lena, <br /> Zone Sensor Setpoints . . . . . . . . . . . . . . . . . . . . . . . . a 14 nox 27M19 , 94L63 or 68M25 <br /> M2 Alarm Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Max. Cable Length 4000 ft. repeater is required for <br /> Application Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 longer lengths . <br /> Appendix A. Timeline of M2 startup sequence . . . . . 34 Bus Termination 120 ohm resistor on last module in <br /> Appendix B . Supply Airflow Targets . . . . . . . . . . . . . . 35 chain . <br /> Appendix C . Effective Occupancy . . . . . . . . . . . . . . . 36 <br /> BACnet@ PIC Statement 9 0 0 a a 0 a a a a 0 a a a a a a a 0 0 a a 38 Default Values <br /> General device Max_Master 127 <br /> device Max Info Frames 1 <br /> This document is provided to assist in the integration of the device Object_Identifier MAC address <br /> Prodigy controller to the building automation system . <br /> device Object_Name " Lennox_M2 " + MAC address <br /> This BACnet module does not require any Lennox device Location ° uS11 <br /> proprietary software or interface in order for the BACnet device Description "Lennox HVAC Controller" <br /> module to function with the prodigy control system . baud rate 38 .4k <br /> recommended update rate 2 minutes ( before software v7.08) <br /> The M2 BACnet Module ( BM2 ) allows communication at least once every 12 minutes <br /> between the Lennox M2 Unit Controller and a BACnet® (software v7 . 08 and later) <br /> MS/TP network. This module is mounted directly to the M2 communication time-out 5 minutes ( before software v7 .08) <br /> 15 minutes (software v7 . 08 and <br /> Unit Controller board . later) <br /> Technical <br /> Publications Page 1 ©2014 Lennox Industries Inc. <br />