Bst Setup: Remote Setpoint - Watts AERCO Benchmark BMK5000 Operation And Service Manual

Benchmark Platinum-Edge [ii]: Operation-Service Manual
SECTION 7 – BOILER SEQUENCING TECHNOLOGY

7.2.2 BST Setup: Remote Setpoint

Complete the instructions below to configure the Controller for Remote Setpoint.
BST Remote Setpoint Setup Instructions
Main Menu → EZ
1. Go to:
2. On the Select Configuration screen press BST Cascade.
3. On the Cascade Role screen select BST Manager then press Next.
4. The next screen displays the current time and date. Press Next to continue, or press either
field and enter the correct time or date.
5. On the Cascade Communication screen, fill in the settings that appear.
•
Unit Address: The unique communication address of the current (Manager) unit.
(Range: 1 to 127)
•
Min & Max Address: The address range in the BST cascade, 1 up to the total number
of units in the cascade; for example, 1 and 10 (Max Address maximum = 16).
•
SSD Address: The Client/Client Device address. This parameter is for backwards
compatibility with the C-More Control system.
•
Cascade Baud Rate: Select the rate at which information is transferred in a
communication channel: 9600, 19200, 38400 or 115200 bits per second.
•
Plant Failsafe Mode: The Manager's operating mode if there is a loss of
communication between the Manager and Client units, or to the BAS or external
signal/sensor, such as an outdoor sensor (default = Constant Setpoint).
Plant Failsafe Setpoint (only if Plant Failsafe Mode = Constant Setpoint):
•
Specify the Setpoint for all units in the cascade.
6. The Client Address screen appears as a reminder to setup all Client units in the BST
Cascade before continuing. Once all Client units are setup, press Next to continue.
7. The Unit Address screen shows a grid with a color-coded square representing each unit
discovered in the cascade and a code indicating its current status. Before continuing, verify
that this screen confirms your understanding of the state of all units in the cascade.
IMPORTANT!
Do not continue past this screen unless it accurately represents the cascade you are
creating.
8. When the Select Your Boiler Application screen appears, chose Space Heating.
9. The SH Operating Mode screen now appears; choose Remote Setpoint.
10. The Select Remote Setpoint Type screen appears. Choose how the unit will access the
setpoint.
A. If you chose 4-20mA, 0-20mA, 1-5V, or 0-5V, the SH Analog Input screen appears.
Enter the upper and lower limits of the SH setpoint in the BST SH Setpt Low Limit
and BST SH Setpt High Limit fields.
B. If you chose Network, the Select COM Settings screen appears.
Address
and
C. If you chose either BAS or PWM, the Select BAS Mode screen appears (see next
step).
OMM-0137_J •
12/20/2022
Setup.
Unit Baud Rate
.
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