Watts AERCO Benchmark OMM-0136 - Page 92

Benchmark Platinum-Edge [II]: Operation-Service Manual
SECTION 7 – BOILER SEQUENCING TECHNOLOGY
OMM-0137_E • GF-211 • 12/13/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 92 of 153
OPTION 2 Instructions: Constant Setpoint, Modbus Wired Header Temp Sensor
Step 2: OPTION 2 CONFIGURATION
On All Boilers:
1. Go to: Main Menu → Advanced Setup → BST Cascade → Cascade Configuration:
• Set the Unit Mode parameter to BST Client.
2. Go to: Main Menu → Advanced Setup → BST Cascade → Cascade Communication:
• Set the Unit Address parameter to the communication address of the unit.
On the BST Manager only:
1. Go to Main Menu → Advanced Setup → BST Cascade, set the Parameters to the Values
in each menu in the table below.
Menu/Screen Name
Parameters
Values
Cascade
Configuration
Unit Mode
BST Manager
Hdr Temp Sensor
Header Temp
Sensor Comm Address
240
Hdr Temp Point
14
Application
Configuration
Application
Space Heating
SH Operating Mode
Constant Setpoint
Outdoor Temp Sensor
Outdoor Sensor
Plant Setpoint
Header temperature required for the cascade
Cascade
Communication
Min Address
The minimum unit address in the cascade
Max Address
The maximum unit address in the cascade
Cascade Baud Rate
The baud rate for the cascade.