MBA Electric Steam Generator Installation, Operation and Maintenance Manual
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Blowdown is an essential part of boiler operation. It is one of the best preventative maintenance steps you can take. Make sure a blow-
down schedule is established and followed regularly.
In hard water areas, blowdown is necessary at least once a day. In soft water areas, once a week. If there is a particular problem
which applies to your own local water condition other than mineral content, take this into consideration in determining which
schedule is to be followed.
1.
At the end of the working day, while boiler is still operating, turn switch to the OFF position and close water supply valve.
De-energize wall mounted safety switch.
2.
It is preferable to connect the blowdown valve directly into a drainage system when allowed by local codes.
If this is done, the boiler can be discharged at operating pressure. Consult local plumbing codes before doing so.
3.
If blowing-down into a receptacle, allow pressure to decrease to 15-20 PSIG before opening blowdown valve.
4.
When discharge is complete and boiler is drained:
1. Close the blowdown valve 3. Put boiler switch in the ON position
2. Open water supply valve; 4. Close wall mounted safety switch.
5.
When refilling is complete, turn off the boiler switch unless further operation is desirable.
6.
If you have been supplied with a Manual Reset Low Water Control as required in some states, the reset button on the
control must be pushed before boiler will begin developing pressure. (Do not push reset until boiler has filled with water.)
The use of chemical boiler cleaning compounds in these boilers will void all warranties unless approved by the manufactur-
er. Some compounds will damage long life incoloy heating elements resulting in a shorter life.
HAZARD OF ELECTRICAL SHOCK. DISCONNECT ALL POWER BEFORE WORKING ON BOILER.
Sussman Electric Steam boilers are designed for years of trouble-free performance. To establish a good preventative maintenance
program, we suggest that the building maintenance person or engineer familiarize themselves with these simple rules.
1.
The use of chemical boiler cleaning compounds voids all warranties. We recommend that a reputable firm of water treatment
engineers be consulted regarding conditioning boiler water. Proper selection must be made of a compound to prevent damage to
heating elements.
2.
The sight glass should be checked daily to ensure that boiler has adequate water.
3.
A monthly inspection should be made of the internal wiring. All electrical connections should be checked for tightness.
A check for water leaks should also be made and any loose fittings immediately tightened.
4.
Every four months, the low water cut-off and pump control should be checked to insure that it is functioning properly.
5.
Every four months, the probe and isolator should be checked for deposits and cleaned, if necessary. This is accomplished by remov-
ing the inspection plate, removing the probe (with a standard socket wrench) cleaning and replacing.
NOTE:
THE SYSTEM WILL NOT OPERATE IF THE BOILER IS USING DISTILLED, DEMINERALIZED, DEIONIZED WATER
OR REVERSE OSMOSIS.
6.
Every four months, the heating elements should be removed. If scale has begun to form, the element should be cleaned
and the boiler should be drained and flushed.
NOTE:
NEW BOLTS AND GASKET SHOULD BE USED WHEN RE-INSTALLING THE ELEMENT TO ASSURE
PROPER SEALING.
Blowdown
Maintenance
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