Sussman ES Installation, Operation And Maintenance Manual - page 13
Maintenance
24-Hour and 7-Day Time Switches
13
HAZARD OF ELECTRIC SHOCK.
DISCONNECT ALL ELECTRICAL POWER BEFORE
WORKING ON BOILER.
S
ussman Electric Steam Boilers are designed for years of trou-
ble-free performance. To establish a good preventative mainte-
nance program, we suggest that the facility maintenance per-
son or engineer familiarize themselves with these simple rules.
1. Daily blowdown at pressure is essential for ideal boiler
performance. Extended periods of operation may require
more frequent blowdown. If the boiler is not equipped
with an automatic blowdown, in order to safeguard the
heating elements, it is recommended to turn both the main
disconnect switch and the boiler switch to the off position
before manually blowing down the boiler.
2. The sight glass should be checked frequently to assure the
boiler has adequate water.
3. The sight glass should be checked daily for damage (i.e.
scratches, erosion, leaks etc.) The sight glass should be
replaced if damaged. (See insert.)
4. A monthly inspection should be made of the internal wiring.
Open the access door and check all electrical connections
for tightness. Replace any wires that show signs of damage.
NOTE: The electrical power MUST be shut off during
this maintenance procedure.
5. Heating element mounting bolts should be checked and
tightened to a torque of 22 ft.-lbs. If there are indications
of steam leaks from an element, replace the element
gasket.
6. A monthly check for leaks should be made; any loose or
damaged fittings should be tightened or replaced.
7. Every four months the boiler float control should be
checked for proper operation. The lower equalization
column can be examined visually and manually to see if is
clear and clean. If there are signs of scale or mineral
deposit buildup the float control must be disassembled and
cleaned.
One of the lower heating elements should be removed. If
scale or mineral deposits have begun to form all elements
should be removed cleaned and reinstalled using new
element gaskets.
Operating and high limit pressure control operation should
be checked. Pressure controls should be removed and
cleaned if necessary. Water feed supply check valves should
be inspected and replaced if necessary.
8. If the boiler is equipped with an electronic auxiliary low
water cut-off every four months the probe should be
removed and checked for deposits. The probe should be
cleaned and reinstalled.
Installation, Operation & Maintenance Manual
PROGRAMMING
F
or electric steam boilers
equipped with Automatic
Blowdown Systems
ES 81600, refer to the
following instructions
for time clock operation
and settings.
Timer settings for blowdown operation are at
the discretion of the owner/operator.
The weekly program dial shows the seven days of
the week and AM/PM imprints for each day.
The time switch is set by pushing the captive trippers
to the outer ring position for the entire period that
the load is to be turned ON, i.e., 2 hours to each trip-
per on the 7-day dial. When the tripper is pushed to
the inside, the switch is in the OFF position.
SETTING TIME
To set the current time and day of week, turn
the minute hand clockwise. Do not set the time
by rotating “Outer” Dial.
Turn the minute hand clockwise until the day of
the week and the time of day on the outer dial is
aligned with the triangle marker on the inner dial
(two o'clock).
Example for 7-day program dial Monday 10:30
AM
.
Turn the minute hand clockwise until Monday 10:30
AM
is aligned with the triangle on the inner dial.
The hour and minute hand will show exactly 10:30.
FOR MANUAL OVERRIDE
Manual override can be accomplished at the
discretion of the owner/operator as follows.
3-WAY MANUAL OVERRIDE SWITCH
I = permanent ON
I
= automatic
O = permanent OFF
O
IMPORTANT: It is recommended that for periodic
and effective blowdown,the override switch be set
in the
automatic setting.
!
C A U T I O N