Burnham ALPINE Installation, Operation And Service Instructions page 80

X. Modular installation (continued)
G
. Modular Boiler Operating Information (continued)
2. Operating Mode (continued)
b. Networked Boilers Detail Screens
The "Networked Boilers" detail screen, shown in
Figure 47, is available on the Sage2.1 Controller
when the Sequence Master is enabled and the
"Home" screens "Detail" button is selected. The
screen is added to the existing detail screens
already offered by the Sage2 controller. The
following information is provided on this screen:
i. Boiler Sequencer Status
The Boiler Sequencer Status provides the
Slave boiler situation as follows:
• Available: The slave boiler is ready and
waiting to be started by the Sequencer
Master.
• Add Stage: The slave boiler has begun the
start sequence but has not yet reached the
boiler running status.
• Running: The slave boiler is running.
• On Leave: The Slave boiler has left the
network to service a DHW demand.
• Recovering: The slave boiler is in the
process of returning to the network. For
example, the slave boiler is in the post-
purge state.
• Disabled: The slave boiler has a lockout
condition and is unable to become
available to the Sequencer Master.
c. Sequencer Alarm
This alarm (shown in Figure 47) is active when
the slave boiler has lost communication with the
sequence master.
The possible causes are as follows:-
• Sage2.1 with the Sequence Master
"Enabled" is powered down or damaged
• Sequence Master has been "Disabled"
• Ethernet cable connecting boiler RJ45
connections has been disconnected
If communication can not be re-established,
cycle power to clear the alarm condition.
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Figure 47: Sequencer Alarm and Detail Screens