Sussman ES Installation, Operation And Maintenance Manual - page 22
READ INSTRUCTIONS COMPLETELY BEFORE STARING WORK
Before installing your new element(s), be sure
the McDonnell Miller low water cutoff and aux.
low water cutoff (if supplied) is operating perfectly. The float
chamber and lower equalizer column of the MM control must be
completely clear of sludge or other foreign matter. Failure to do
this may cause the immediate burn-out of the new elements.
All elements are thoroughly checked before shipment. The manu-
facturer cannot be responsible for burn-outs caused by a faulty
low water cut-off.
The lower equalizer column can best be examined by breaking the
unions on either side and then visually and manually examining
the piping with your fingers or probes to see if it is clear and clean.
1.
Disconnect boiler from electric power supply at main safety switch or fuse panel. Then turn boiler switch to ”off” position.
2.
On automatic feed units, close valve on incoming water line. Drain boiler completely of water.
3.
Open boiler door to expose heating element.
4.
Disconnect wire (electric) leads connecting element to main power system of boiler. Again, note wire connections to facili-
tate re-assembly. Proceed to remove (6) 5/16”-18 bolts from flange.
5.
Thoroughly clean boiler flange of all foreign material. Be certain no part of old gasket remains on boiler flange.
6.
Apply "Slic-Tite" Gasket Compound or equal to both surfaces of new gasket supplied with replacement element.
Proceed to install element flange assembly with gasket between boiler flange and element flange. In doing this, be careful
to align flange holes so wire connection terminals on element assembly are in line with previously disconnected wire leads
to facilitate easy connections.
7.
When all (6) flange bolts are tight; connect all wires to terminals. Make certain wires are clean and bright to assure good
electrical contact and nuts on screws are firmly secured.
8.
Open water valve so water supply can reach boiler feed mechanism.
9.
Put Main safety switch to “ON” position.
10.
Turn boiler switch to "ON" position.
11.
As boiler automatically refills, observe the new flange assembly for possible leaks. If water is noticed, the bolts must be re-
tightened. Before doing this, turn the boiler off at the main fuse safety switch.
12.
As boiler is heated to working pressure, check flange assembly again for leaks.
Avoid use of chemical cleaning compounds. Follow maintenance instructions.
Sussman Boilers
Installation, Operation & Maintenance Manual
Element Replacement
22
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CAUTION
!
CAUTION
!
CAUTION
Boiler
1" Steam Equalizing Pipe
Pump and Low Water Control
Normal Boiler Line
Cut-off Level is Arrow Marked
Blowdown Valve
1" Water Equalizing Pipe
1
1
/
2
"