79
5. Multiple Boiler Sequencer Screens
When the Sequence Master is enabled the following screens are
available
:
X. Operation
E. Boiler Sequence Of Operation (continued)
Sequence Status:
Slave boiler status is provide as follows:
Available:
Add Stage:
Running:
On Leave:
Recovering:
Disabled:
Boiler is ready and waiting to be started by the Sequencer
Master.
Boiler has begun the start sequence but has not yet reached
the boiler running status.
Boiler is running.
Boiler has left the network to service a DHW demand.
Boiler is in the process of returning to the network. For ex
-
ample, the slave boiler is in the Postpurge state.
Note
: The recovery time is normally 30 seconds. However,
if the slave boiler fails to start the recovery time increases
from 30 seconds to 5, 10 and 15 minutes.
Boiler has a lockout condition and is unable to become avail
-
able to the Sequencer Master.
The “Networked Boilers” screen is selected by “pressing” the “Detail” button from the “Home” screens and “pressing” Networked
Boilers” from the “Detail” screen.
Boiler Number:
Up to eight (8) boiler’s status is
shown
Lead Boiler:
Upon power up the lowest num
-
bered boiler becomes the lead
boiler. The lead boiler is the first
to start and last to stop. The lead
boiler is automatically rotated after
24 hours of run time.
Additionally, the lead is rotated if
there is a lead boiler fault.
Firing Rate:
Demanded firing rate is
provided.
The Sequencer Status screen is selected by “pressing” “Status” button from the “Home” screen when Sequence Mas
-
ter is enabled.
Header:
measured header water tempera
-
ture. This is the temperature being
used to start, stop and fire boiler
when there is a call-for-heat.
Setpoint:
this is the active setpoint. This
temperature is the result of Outdoor
Air Reset, Setback and Domestic Hot
Water (DHW) selections.
Networked Boiler Status:
Provides connected, start sequence and firing rate status information for all connected boiler addresses. The boiler number is un
-
derlined if the boiler is running and blinks if the boiler has the start sequence in progress. For example the status for boiler address
1 is provided as follows:
1 - Boiler 1 is connected to the network
1 - “Blinking underline” - boiler 1 is starting
1 - “Solid underline” - boiler 1 is running
Rate:
The rate % value is equal to the
Sequence Master demand to the
individual boiler. Actual boiler firing
rate is found on the individual boiler
status pages.
Priority:
The selected Sequencer Priority
is shown. Available Priorities are:
Standby (no call for heat is present),
Central Heat, Auxiliary Heat, Domes
-
tic Hot Water, Frost Protection or
Warm Weather Shutdown.
Содержание PHNTM399
Страница 6: ...6 I Product Description Specifications and Dimensional Data continued Figure 1A Phantom Model PHNTM399...
Страница 7: ...7 Figure 1B Phantom Model PHNTM500 I Product Description Specifications and Dimensional Data continued...
Страница 53: ...53 VIII Electrical continued Figure 26 Ladder Diagram...
Страница 54: ...54 VIII Electrical continued...
Страница 55: ...55 Figure 27 Wiring Connections Diagram VIII Electrical continued...
Страница 63: ...63 IX System Start up continued Phantom Series Operating Instructions Figure 32 Operating Instructions...
Страница 113: ...113 THIS PAGE LEFT BLANK INTENTIONALLY...
Страница 114: ...114 XIII Repair Parts continued PHNTM399 and PHNTM500...
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