HTP 7350P-636, Installation Instructions Manual

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MODBUS / BACnet Adapter Installation Instructions
Part # 7350P-636
For Use with BIC-928 Control Based EnduroTI and Elite Premier Boilers (see page 2 to determine compatibility)
BIC-926 Control Based Modcon, Modcon VWH, Pioneer, and Versa Flame Products Manufactured On or After July 1, 2011,
and BIC-926 Control Based Elite, Elite VWH, and Phoenix Water Heaters Manufactured On or After August 1, 2011
272 Duchaine Blvd. New Bedford, MA 02745 www.htproducts.com
lp-548 Rev. 000 Rel. 004 Date 1.11.19
STOP! Follow these instructions or warranty will be void!
The manufacturer reserves the right to make changes or updates without notice and will not be held liable for errors in literature.
NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.
NOTE: Contains additional information important to a procedure.
Foreword
This manual provides guidelines for the use and installation of the MODBUS/
BACnet communication system with HTP appliances.
For the Installer
The installer should be guided by the instructions furnished with the
MODBUS/BACnet, local codes and utility company requirements. Preference
should be given to codes and requirements where they differ from the
This manual must only be used by a qualified heating installer / service
technician. Read all instructions in this manual before installing. Failure to
comply could result in property damage or improper appliance operation.
Such damages or service calls to correct operation ARE NOT covered by
warranty.
The following defined terms are used throughout this manual to bring
attention to the presence of hazards of various risk levels or to important
product information.
CAUTION used without the safety alert symbol
indicates a potentially
hazardous situation which, if not avoided, may result in property damage.
Table of Contents
Part 1 - General Information 2
A. What’s in the Box 2
B. Minimum System Requirements 2
C. Definitions 2
Part 2 - Installation 2
A. BMS Wiring Requirements 3
B. Jumper Setting 3
Part 3 - Communication Configuration 4
A. MODBUS/BACnet Enable 4
B. MODBUS Address 4
C. BACnet Address 4
D. Baud Rate 5
E. Parity and Stop Bits 5
Part 4 - MODBUS Registers and BACnet Objects 5
A. Primary Data Tables 5
B. Appliance Memory Map 6
C. Configuration Bits 8
Part 5 - Appliance Operation 9
A. Appliance Operation with MODBUS and BACnet
Communications 9
B. Example #1 - Enable / Disable CH and DHW Demand 9
C. Example #2 - Sending DHW Setpoint Via Direct Write Method 9
D. Example #3 - Sending Setpoint or Firing Rate from BMS 9
1. Sending Desired Setpoint from BMS to Appliance Via Simulated 0-10V
Method 9
2. Send Firing Rate Command from BMS to Appliance 10
E. Example #4 - Hot Water Generation 11
F. Cascade 11
G. Temperature Conversions (MODBUS Only) 11
Part 6 - Troubleshooting 12
A. MODBUS/BACnet Board Diagnostics 12
B. Physical Layer 12
C. Communications 12
D. Error Codes 13
E. Appliance 0-7 Status Codes 13
F. Appliance 0 and Appliance 1 Blocking Codes 13
G. Appliance 0-7 Lockout Codes 14
Communication Adapter Limited Warranty 15
Installation and Maintenance Notes 16
furnished instructions.
Additional publications which should guide the installer include:
1. The latest version of the National Electrical Code, NFPA No. 70.
2. In Canada, refer to Canadian Electrical Code C 22.1, from Canadian Standards Association, 5060 Spectrum Way, Suite 100, Mississauga,
Ontario, Canada L4W 5N6.
3. Local, state, provincial, and national codes, laws, regulations, and ordinances.