INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Easco Boiler Corp 1175 Leggett Ave Bronx, NY 1047 T: 718.378.3000 F: 718.378.4560 info@easco.com easco.com
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5.2 Feed Water Connection
It is imperative that all feed-water entering the Boiler be fed through the designated
return connection with baffle inside to avoid the low-temperature feed-water
directly flushing the high- temperature combustion chamber walls. This allows even
temperature distribution and lowers down thermal stress and risk of thermal shock.
5.3 Firing Apparatus
5.3.1 Depending on configuration, Easco boilers can be fired with a number of devices.
Regardless of the fuel or method employed, all systems should be operated in
accordance with burner manufacturer’s instructions. These are obtained either from the
contractor or directly from the burner manufacturer.
5.3.2 Your Easco boiler is a quality product engineered to extract usable heat from
the fuel burned, and will continue to do so as long as the burner is adjusted properly
and heating surfaces are kept clean. Safety and economy are prime objectives in the
operation of every boiler plant. Everyone in daily contact with the boiler room should
acquaint himself with all rules pertaining to the care and maintenance of his Equipment
as set forth by state, local and insurance regulations.
5.3.3 Adjust burner according to the burner manufacturer’s specifications. Refer to
burner manufacturer’s Installation, Operation and Maintenance Manual furnished with
the Boiler.
5.4 Pressure and Temperature Controls
CAUTION! Before the installation of Boiler is considered complete, the operation of
the boiler controls must be checked, particularly the Low Water Cut-Off and High Limit
Control.
5.4.1 Careful consideration must be taken when determining what pressure or
temperature the Boiler should be operated at. On steam Boilers, the pressure should be
high enough to support the load, but in the case of high pressure Boilers, it should never
be reduced too low so as to allow high exit steam velocities to aggravate water carry-
over through the steam supply nozzle.
5.4.2 Hot water Boilers must be controlled hot enough to carry the system load, but
should never be allowed to go below the point where the Boilers can be thermally
shocked or where dew point is reached in the breeching and stack. A good ‘rule of
thumb’ is to never allow the return water temperature to fall below 150 °F and never
allow the differential temperature across the Boiler to exceed 40 °F.
5.4.3 Always warm up your Boilers at the ‘low’ firing rate and leave them there until
pressure is indicated on the steam boiler pressure gauge or until hot water boilers return
water temperature is above 150 °F. Never allow system pressure to exceed designed
MAWP of the boiler vessel.
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