Benchmark Platinum-Edge: Operation-Service Manual
SECTION 7 – BOILER SEQUENCING TECHNOLOGY
OMM-0137_D • GF-211
•
7/16/2019
Technical Support
•
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•
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7.3 BST Implementation Instruction
The instructions in the rest of this chapter refer to I/O board connections on the Benchmark
boilers. For an I/O board diagram and terminal connections, see Section 2.11.1 in
Benchmark
Platinum-Edge: INSTALLATION Manual
(OMM-0136, GF-210).
7.3.1 Option 1 Constant Setpoint: Direct Wired Header Sensor
OPTION 1
Instructions: Constant Setpoint with Direct Wired Header Sensor
Step 1:
HEADER SENSOR WIRING – MANAGER Unit
1. On the
Manager
unit, connect the
Header Temperature Sensor
(P/N
24410
) to the I/O
board terminal strip
J3
, terminals
4
(
Supply Header
+
)
and
5
(
Supply Header
–).
2. Ground the shield to any
Shield
terminal on the I/O Board, such as Terminal 3 or 8.
NOTES:
•
The Header Sensor must be installed between 2 and 10 feet (0.61 and 3.1m)
downstream of the LAST boiler in the plant’s supply water header.
•
Shielded pair 18 - 22 AWG cable is recommended for header sensor wiring. There is no
polarity to be observed.
•
The ground for the shield is at the
Shield
terminal on the I/O the board. The sensor end
of the shield must be left free and ungrounded.
Step 2: OPTION 1 CONFIGURATION
On All Boiler:
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
Application Configuration
:
•
Set the
Unit Address
parameter to the communication address of the unit.
Continued on next page
HEADER TEMP SENSOR (P/N
24410
)
5 Supply Header –
3 Shield
I/O Board Strip J3
4 Supply
