Sussman ES Installation, Operation And Maintenance Manual - page 15
Optional Equipment
(cont.)
15
VACUUM BREAKER SYSTEMS
• For model ES boilers PN ES89369
A vacuum breaker will prevent a boiler from flooding as a
result of the steam condensing internally and creating a
vacuum after boiler shutdown. The breaker allows air to
enter the boiler shell breaking the vacuum. This system is
a must for boilers connected to a condensate return tank.
The vacuum breaker consists of a spring-loaded disc and
associated piping and is factory plumbed to the boiler.
AUTOMATIC BLOWDOWN SYSTEM
• Extends life of boiler
• Saves labor costs
• Starts the boiler automatically every day
• Shuts down the boiler every day
• Automatically blows down the boiler every day
• Completely programmable, can skip days, different start
and shutdown times, different operational durations.
• ES81600 for all model boilers.
A stainless steel, motor driven straight-through, self-clean-
ing ball valve with Teflon seats handles particles and dirty
fluid without the use of an up-stream strainer or other
cleaning device. A timer (Standard analog time clock is set
for two hour time intervals, optional digital time clock
can be programmed to one minute intervals.) and elec-
tronic time delay relay control the boiler and the blow-
down valve.
A pilot light indicates when the blowdown valve is open.
The valve shall be plumbed to a proper drain or recepta-
cle. An automatic blowdown system can be installed on
any boiler, regardless of size operating pressure or operat-
ing duty cycle.
CONTROL VOLTAGE STEPDOWN
TRANSFORMER
• Provides 120 Volt (220 Volt export) from main power
supply. Factory wired and fused.
Installation, Operation & Maintenance Manual
BLOWDOWN SEPARATORS (see page 17)
• For models ES12-48 - PN BDT-ASME36
• For models ES60-180 PN BDT-ASME42
A separator accepts the flash steam and effluent from the
boiler blowdown and reduces the temperature and pressure
to insure a safe discharge of water and sludge. Steam flash
and pressure are absorbed and pass harmlessly to the out-
side via a vent. The separator design utilizes a water seal at
the outlet, which permits the operator to introduce cold
water from the bottom to mix with the hot water and boiler
steam in the blowdown separator. This reduces outlet tem-
perature to a safe discharge level.
These separators require specific plumbing from the boiler
blowdown valve and require connection to a cold water sup-
ply. (If the separator is less than half full of water after the
boiler is blown down cold water must be added to bring the
water level to the halfway mark before the next blowdown).
• 0-30 psig pressure gauge; 0-200F temperature gauge; water
sight gauge glass and valve set assembly are included.
MULTISTAGE LOAD PROGRESSIVE
SEQUENCERS
Accurate control is provided by automatic progressive sequenc-
ing in the use of energy and minimizing wear on electrical
components. The sequencers are designed to apply power pro-
gressively to larger KW boilers. A factory installed pressure sen-
sitive sequential control reacting to steam boiler pressure pro-
gressive energizes or de-energizes heating elements through
power contactors. A delay between sequencer steps before
start-up and between each subsequent step eliminates power
surges. Each sequencer is matched and factory pre- set to boil-
er system requirements. Electronic progressive sequencers give
accurate control of multi-stage loads of the type used in steam
boilers. Features include progressive sequencing (first on- first
off) that equalizes the operating time of each load. Integral
solid-state light emitting diodes show active stages. Should a
power interruption occur, all elements are instantly de-
energized for safety. Upon resumption of power the control
will re-stage the loads one at a time.