Benchmark 2500 - 3000 Boilers
CHAPTER 9. BOILER SEQUENCING TECHNOLOGY
OMM-0094_0F
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
129
of
207
GF-137
Ph.: 800-526-0288
09/30/2015
Option 4 –
Continued
•
There is no polarity to be observed. The ground for the shield is at the power supply ground. The
sensor end of the shield must be left free and ungrounded.
Step 3 - Configure ALL C-More Units
On ALL Boilers
:
1. Go to the
Configuration
menu
item and set the
BST Menu item to Enabled
.
2. Go to the
Boiler Sequencing Menu
item
and set the
BST Mode
item to
BST Slave
(for now).
On MASTER only
:
3. Go to the
BST Setpoint
item and enter the Failsafe Setpoint.
4. Go to the
BST Setup Menu
item and set to
Enabled
.
5. Go to the
BST Setpoint Mode
item and select
Outdoor Reset
.
6. Go to the
Head Temp Source
item and select
Network
.
7. Go to the
Header Temp Addr
item and enter the Modbus Address (240).
8. Go to the
Header Temp Point
item and enter the Modbus Point (14).
9. Go to the
BST Outdoor Sens
item and select
Enabled
.
10. Go to the
Outdoor Temp Source
item and select
Network
.
11. Go to the
Outdoor Temp Addr
item and enter the Modbus Address (240).
12. Go to the
Outdoor Temp Point item
and enter the Modbus Point (15).
When ALL C-More units have been configured
:
13. Go to the
Boiler Sequencing Menu
item
of the desired Master
unit
and set the
BST Mode
item to
BST MASTER
.
Temp Sensor PN
61043
Modbus Transmitter
I/O Box
