Sussman ES Installation, Operation And Maintenance Manual - page 14
Sussman Boilers
Installation, Operation & Maintenance Manual
Optional Equipment
14
AUXILIARY LOW WATER CUT OFF
• For model ES & HU boilers P/N ES81017 & ES81017MR (w/ manual reset).
• For model SSB boilers p/n SSB81017 & SSB81017MR (w/ manual reset).
Senses water level electronically using a resistance probe. When a low water condition is detected, the contactor
control voltage circuit is interrupted and the heating elements are de-energized. When water level returns to
proper levels voltage is restored to the contactor coils and the elements are re-energized. For controls with a
manual reset button voltage to the contactor coils is not restored until the water level has returned to proper
operating levels and the reset button is pushed. Do not depress the reset button before the correct water level is
achieved.
LINE PRESSURE WATER FEED SYSTEM
• For model ES & HU boilers P/N ES99117
• For model SSB boilers
P/N
P/N SSB99117
Water feed system used to supply makeup water to the boiler when incoming water line pressure is 10 psig
greater than the operating pressure of the boiler. Completely factory plumbed and wired; 0-100psig range; 1/2”
NPT size. Consists of strainer, solenoid valve (120/1/50-60Hz), and check valve for automatic feed. For SSB boilers
P/N SSB99117 components are of stainless steel construction.
HIGH PRESSURE WATER FEED SYSTEM
• For model ES12-72 P/N ES38002A
• For model ES100-180 P/N ES38020A
• For model SSB12-72 P/N SSB38002A
• For model SSB100-180 P/N SSB38020A
Used to supply makeup water and to maintain constant water level when the boiler operating pressure is equal
to or greater than incoming water line pressure and condensate is not returned to the boiler.
• ES38002A & SSB38002A – Range is 0 – 100 psig, 1/2” NPT size consisting of strainer, solenoid valve and 1/3 HP
120/1/60 motor and pump.
• ES38020A & SSB38020A – Range is 0 – 125 psig, 3/4” NPT size consisting of strainer solenoid valve and 1/2 HP
120/1/60 motor and pump.
These assemblies are mounted on rubber shocks and secured to a steel base mounting plate. These units require
field plumbing and wiring to the boiler. SSB38002A and SSB38020A pump components are of stainless steel con-
struction.
CONDENSATE RETURN SYSTEM
(see page 17)
• For model ES12-72 p/n ES38083V; for model ES85-180 p/n ES38084V.
These systems are used whenever condensed steam can be collected for reuse in the boiler. Returning the con-
densate to the boiler can save a significant amount of energy. The water returned is relatively free of corrosive
minerals and carries a substantial amount of heat that does not have to be replenished. A vacuum breaker is
required whenever a condensate return system is used.
Each system consists of a vertical condensate return tank, a motor and pump and support plumbing. A 1/2”
inlet is located on the tank to accept make-up water. A vent fitting is located on the condensate tank top for
atmospheric air venting. The return fitting is to be plumbed to the trapped condensate return line coming
from the process.
A gauge glass and valve set are mounted on the side of the condensate tank. The tank has a ball check valve
internally mounted, and a float arm and float ball assembly that serve mechanically allowing make-up water to
enter the tank as the original supply is used. The pump discharge outlet is to be plumbed to the boiler check
valve. The tank drain valve should be plumbed to a proper drain line. The motor is required to be wired to the
boiler.