Benchmark 6000 Boiler Installation, Operation & Maintenance Manual
CHAPTER 10 – BOILER SEQUENCING TECHNOLOGY
OMM-0086_0D
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
137
of
210
GF-133
Ph.: 800-526-0288
03/20/14
10.3 BST IMPLEMENTATION INSTRUCTION
10.3.1 Option 1 - Constant Setpoint with DIRECT Wired Header Sensor
Step 1: Direct Wired Header Sensor Wiring
1. On the MASTER Unit, Connect the Header Temperature Sensor (
AERCO PN 61040
) to the Feed
Forward (FFWD) terminals on the P-1 Harness Via the terminal block labeled “Header Temp sensor”
in the I/O Box.
NOTES
:
•
The header sensor must be installed between 2 and 10 feet 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 “SHLD” terminal in the I/O the
Box. The sensor end of the shield must be left free and ungrounded.
Step 2: Configure ALL C-More Units
On ALL Boilers
:
1. Go to the
Configuration Menu
and set the
BST Menu
item to
Enabled
.
2. Go to the
BST Menu
and set the
BST Mode
item to
BST Slave
(for now).
On MASTER only
:
3. Go to the
BST Setpoint
item and enter the desired Setpoint.
4. Go to the
BST Setup Menu
item and set to
Enabled
.
5. Go to the
BST Setpoint Mode
item and select Constant
Setpoint
.
6. Go to the
Head Temp Source
item
and select
FFWD Temp
.
When ALL C-More units have been configured
:
7. Go to the
BST Menu
of the desired
Master
unit
and set the
BST Mode
item to
BST MASTER
.
Temp Sensor PN 61040
Header Temp Sensor
I/O Box
