Optional Equipment -Steam Boilers

Multi-Stage Load Progressive Sequencers | Water Feed Systems | Vacuum Breaker Systems Automatic Blowdown Systems
Auxiliary Low Water Cutoff | Blowdown Separators | Transformer Selection Guide | Condensate Return Systems

MULTI-STAGE LOAD PROGRESSIVE SEQUENCERS

Accurate control is provided by automatic progressive sequencing in the use of energy and minimizing wear and tear on electrical components. The sequencers are designed to apply power progressively to larger KW boilers. A factory-installed pressure sensitive sequential control reacting to steam boiler pressure progressively energizes and 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 boiler system requirements.

Electronic progressive sequencers give accurate electronic control of multi-stage loads of the type used in steam boilers. Integral solid state light emitting diodes show active stages. Should a power interruption occur, all heating elements are instantly de-energized for safety. Upon resumption of power, the control will re-stage the loads one at a time.

The solid state sequencer operates on a 120v AC/60Hz, with each output relay rated 125VA at 120 AC.

WATER FEED SYSTEMS

An automatic water feed is required on all ES, SVS and SSB boilers.

Line pressure water feed systems
ES 99117 and SVS 99117 are water feed systems used to supply makeup water to the boiler when incoming water line pressure is 10 psig or greater than the operating pressure of the boiler.

Line Pressure Water Feed System
ES 99117 Completely factory plumbed and wired; 0-100 psig range; 1/2” NPT size. Consists of strainer, solenoid valve (120/1/50-60Hz), and check valve. For SSB boilers specify SSB 99117 with stainless steel construction.

Line Pressure Water Feed System
SVS 99117 Is completely factory plumbed and wired, 0-150 psig, 1” NPT size. Consists of strainer, sole-noid valve (120/1/50-60Hz), check valve for auto-matic feed, and a bypass system with manual valve to speed up initial filling.

High Pressure Water Feed Systems
Systems ES 38002A, ES 38020A are used to maintain constant water level in the boiler when boiler operating pressure is equal to or greater than the incoming water line pressure and condensate is not returned to the boiler. (See CONDENSATE RETURN SYSTEMS section for pumping equipment to handle condensate.)

ES38002A
Range is 0-100 psig, 1/2” NPT size consisting of strainer, solenoid valve, 1/3 HP 120/1/60 motor and pump. This assembly is mounted on rubber shocks secured to steel base mounting plate. A jacketed cable is supplied for electrical connection. This unit requires field plumbing and wiring to the boiler. For SSB boilers, specify SSB 38002A or SSB 38020 for stainless steel construction.

ES38020A
Range is 0-125 psig, 3/4” NPT size consisting of strainer, water solenoid valve and 1/2 HP 120/1/60 motor and pump mounted on rubber shocks and secured to a steel base mounting plate and includes essen-tial plumbing. This high pressure cold water feed unit is a separate assembly that requires field plumbing and wiring to the boiler.

SVS38020
Range is 0-150 psig, 3/4” NPT size consisting of strainer, water solenoid valve and 1/2 HP 120/1/60 motor and pump mounted on rubber shocks and secured to a steel base mounting plate and includes essential plumbing. Separate assembly requires field plumbing and wiring to boiler.

^Top of Page

VACUUM BREAKER SYSTEMS

A vacuum breaker will prevent the boiler from flooding as a result of the steam condensing internally and creating a vacuum after boiler shut down. The breaker allows air to enter the shell, breaking the intense 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. System ES89369 is a heavy duty system compatible for use on ES boilers. Specify SSB89369 for SSB boilers with stainless steel construction. Specify SVS89369 for SVS boilers.

AUTOMATIC BLOWDOWN SYSTEMS

The heart of the system uses a stainless steel, motor-driven, straight-through, self cleaning ball valve for boiler water blowdown.

An electronic unit and timer controls the ball valve and boiler. Pilot lights indicate when the drain valve is open or closed and when the boiler is on or off. The system can be overridden manually anytime.

An Automatic Blowdown System may be installed on any steam boiler, regardless of size or operating duty cycle. The system, when factory installed, further saves field costs and prolongs the life of the heating elements.

^Top of Page

AUXILIARY LOW WATER CUTOFF

An electronic device provides the means for back-up automatic low water cutoff. When water levels fall below a safe operation level, the boiler is de-energized. A sensing device detects current flow between a submerged probe and the shell. This unit is useful as a backup to the primary low water cutoff control. For use on SSB boiler (which use deionized, demineralized or distilled water), specify System No. SB81017. Add suffix MR for manual reset.

BLOWDOWN SEPARATORS

Suggested Hook-Up to Boiler

Sussman Blowdown separators are built to ASME Section VIII. The separators accept the flash stream and effluent from the boiler blowdown and reduce the temperature and pressure to insure a safe discharge of water and sludge. Steam flash and pressure are absorbed and pass harmlessly to the outside via a vent. The separator design utilizes a water seal at the outlet which permits the operator to let cold water from the bottom mix with the hot water and boiler steam in the blowdown separator. This reduces outlet temperature to a safe discharge level. These separators require specific plumbing from boiler blowdown valves and require a connection for cold water supply. No electrical hookup is required.

^Top of Page

TRANSFORMER SELECTION GUIDE

The transformer’s primary voltage must be compatible with the boiler power voltage. Transformer sec-ondary voltage must be 120 VAC (220 VAC for export).

To select transformer size find the sum of all component VA requirement, i.e. ES-72 with ES38083V condensate return system and ES81600 automatic blowdown system requires:

^Top of Page

CONDENSATE RETURN SYSTEMS

These systems are used wherever condensed steam can be collected for reuse in the boiler. A significant amount of energy can be saved by returning condensate to the boiler. The water returned is 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. A 3-Pole motor starter is required on 3Phase condensate systems.

• ES/SVS Condensate Return Systems For Low and Medium Pressure (150 psig Max.) - Each system consists of a 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. The tank has a ball check valve internally mounted, and a float arm and float ball 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.

Click here for a Selection Chart for Sussman Condensate Return Systems

Multi-Stage Load Progressive Sequencers | Water Feed Systems | Vacuum Breaker Systems Automatic Blowdown Systems | Auxiliary Low Water Cutoff
Blowdown Separators | Transformer Selection Guide
Condensate Return Systems