i.
Low fuel oil temperature.
j.
Low oxygen level
k.
Flame failure.
l.
High opacity.
2.6.15
Balance of Plant (BOP) Variables
a.
Status of equipment common to all boilers and any other plant
variables not part of any boiler control system shall be monitored
directly by the CMS controller via input-output interface modules.
Input-output modules shall be analog, discrete or communication
ports as required. Discrete inputs-outputs shall be isolated or
nonisolated as required by prevailing conditions. System
controller shall apply calibration factors to raw analog
transmitter output as required.
b.
Controller inputs-outputs shall include, but shall not be limited
to, those indicated.
2.6.15.1
BOP Variables to be Monitored:
Following balance of plant variables shall be accessed from dedicated
instruments or controllers:
a.
Outside air temperature in degrees C.
b.
Steam header pressure in [ KPA] [MPA].
c.
Boiler feedwater temperature in degrees C.
d.
Boiler feedwater flow in liters per minute.
e.
Boiler feedwater pressure in [KPA] [MPA].
f.
Boiler water makeup flow in liters per minute.
g.
Air Compressor status (one per compressor).
h.
Boiler Feed Pump status (one per pump).
i.
Condensate Transfer Pump status (one per pump).
k.
City water supply valve status ("OPEN" or "CLOSE").
l.
Fuel Oil Pump status (one per pump).
2.6.15.2
BOP Alarms
Following alarms shall be accessed from dedicated instruments or
controllers:
a.
Air Compressor Low Pressure (one per compressor).
b.
Condensate Transfer Pump Trip (one per pump).
c.
Fuel Oil Pump Trip (one per pump).
SECTION 15561A
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