the location [shown on the plans] [recommended by the
manufacturer].
2.11.2.2
Flue Gas Flow Monitor
Flue gas flow monitor shall utilize the pitot tube principle to measure the
flow. The probe shall be an across-the-duct-average pitot tube and shall
be designed and located to obtain representative measurement. Differential
pressure transmitters shall be used to sense the difference between he
static and total pressure of the flowing gas steam. Calibrations shall be
stable. Lines shall be arranged to prevent collection of condensate. A
purge system shall be provided as required to keep the pitot pressure taps
clear.
2.11.2.3
Particulate Matter Monitor
Particulate matter (opacity) monitor based on the principle of
transmissometry shall be provided. The transmissometer shall include
automatic simulation of zero opacity and upscale check of calibration while
the boiler is in service without dismounting the unit. The calibration
check shall include analyzer internal circuitry and electronic circuitry.
An alarm horn and annunciator shall be provided to annunciate excess
opacity and any system malfunction. Units shall be provided with fans to
keep the sending and receiving lenses pressurized and blown clean at all
times.
2.11.2.4
Wiring
The CEMS equipment shall be provided with plug-in prefabricated cable for
interconnection between components. Power supply to the equipment shall be
2-wire, 120 volt nominal or less, 60 Hz, with one side grounded.
Electrical devices shall be connected as specified in Section 16402
INTERIOR DISTRIBUTION SYSTEM.
2.11.3
Tankless Water Heater
**************************************************************************
NOTE: If the system will not be used to heat
domestic hot water delete this paragraph.
**************************************************************************
A seamless copper immersion type tankless water heater of the specified
capacity shall be installed in the boiler. The heater shall be equipped
with an approved water-tempering valve which shall be set to supply hot
water at approximately 65 degrees C 150 degrees F. Instead of the
immersion type coil, an approved external shell and tube type or plate type
heat exchanger may be installed per Section 15556A FORCED HOT WATER HEATING
SYSTEMS USING WATER AND STEAM HEAT EXCHANGERS.
2.11.4
Conventional Breeching and Stacks
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NOTE: Delete this paragraph for condensing boilers.
**************************************************************************
2.11.4.1
Breeching
Each boiler shall be connected to the stack or flue by breeching
constructed of black steel sheets not less than 1.2 mm 0.0478 inch thick
SECTION 15569A
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