Boiler Control Instruction & Operation Manual, Rev 1
Page
20
of 64
Installation
Boiler-To-Boiler Network
The Boiler-To-Boiler Network allows the Contro
l’s Internal Sequence Master to communicate boiler
information, including modulation rate and on/off commands, using a standard Ethernet cable.
RJ45 Connection
Inside Boiler
(typical)
Boiler 1
Sequence Master
Enabled Boiler
Boiler 2
Boiler 3
Connects to
Up to 8 boilers and
Energy Management
System
Figure 15: Communication Network Connections
Table 6: Sequence Master Setup Procedure
Step
Description
Comments
1
Install and wire the
Header Sensor
Wire a header sensor to Control J8 terminals 11 &12 of the Sequence Master
Enabled Boiler.
NOTE
This step cannot be skipped. The Sequence Master cannot be enabled unless a
Header Sensor is installed.
2
Install Ethernet Cables
between boilers
Use standard Ethernet type cables to make connection between boilers. When
more than two boilers are connected an RJ45 splitter may be used to connect the
boilers. Refer to Figure 15.
4
Set Unique Boiler
Addresses
Assign all boilers a
unique
Boiler Address using any number from 1 through 8.
(Found in
Home Screen > Configure > Lead Lag Slave Configuration
)
NOTE
When two boil
er’s addresses are the same undesirable simultaneous operation
occurs.
5
Enable 1 Boiler
Master
Enable
only one
Control
’s Sequencer Master. (Found in
Home Screen > Configure
> Lead Lag Master Configuration
)
WARNING
When more than one Sequencer Master is enabled, erratic behavior will result.
9
Confirm
Communication
Power down all boilers and power up Sequence Master Enabled boiler first.
From the Sequence Master Enabled Control
’s Main Screen press the + View Lead
Lag button.
The Sequencer display shows the boiler address of the communicating boilers.
If a boiler is not shown, check Ethernet cable connections and confirm all boilers
have unique addresses.
Ethernet Cable
(Sold Seperately)