
PAGE 9
Reimers Electra Steam, Inc. 05/01/2020 RE‐30 Manual REV 0
Observe the pressure gauge while pressure builds up, until
working pressure is reached. The working pressure should
have been factory set to your specification. However, if you
wish to change the working pressure setting, proceed as
follows.
All pressure controls are factory preset and require no
adjustment. However, if a change of the operating steam
pressure is required, then proceed as
follows:
• Disconnect all power supplies from the boiler.
• Close the steam outlet valve
• Remove the cover from the pressure control enclosure.
• Turn the black knob of the operating pressure switch
clockwise to increase the pressure and counterclockwise
to decrease the pressure.
• Connect all power supplies to the boiler, open the
steam outlet valve, and install the pressure control
enclosure cover.
h.) To shut off the boiler, turn the POWER switch on the
boiler control OFF
WARNING Boiler repairs must be performed by experi
enced personnel only. Ensure boiler water is cold and
drained and that there is no pressure and all electricity to
the boiler is shutoff.
All boilers must be blown off periodically to remove
minerals, scale and other foreign matter, which accumulate
inside the pressure vessel. The concentration of this
deposit depends in part upon the condition of the water in
the area. When water is naturally soft, or has been
softened chemically, boiler blowoffs are required less often
than in areas where hard water is found. Water softeners
are suggested in hard water areas to minimize the
formation of hard scale on heating elements. Another factor
affecting water condition is the amount of condensate, if
any, that is being returned to the boiler. Since condensate
is essentially clean distilled water, it contains very few
impurities. If a large part of the condensate is being
returned and little makeup water is used, the boiler need
not be blown down as often as when little or no condensate
is returned to the boiler. We recommend blowoff of newly
installed steam boilers once per day until the first heating
element and pressure vessel inspection is performed (refer
to chapter 3.4). If no significant amount of sediment is
found on the bottom of the pressure vessel and on the
heating element sheaths, then the boiler blowoff frequency
can be reduced accordingly. The safest method to blowoff
Rseries steam boilers is to install a Reimers Electra
Steam, Inc. properly sized and fully trimmed blowdown
tank, model BTANK10 (Figures 10 and 11). Reimers
blowdown tanks are designed and constructed to Section
VIII of the A.S.M.E. Code and inspected by a
commissioned National Board Boiler inspector.
Refer to the boiler blowdown tank supplement and see:
http://www.youtube.com/watch?v=WhVLOuQywpI
Stand clear of safety valve and
scalding steam.
This test should be performed
once per month. Proceed as
follows:
• Increase the steam pressure as
shown in chapter 2.1. to maximum
operating pressure.
• Keep the steam outlet valve
closed
• Pull the trip lever and hold open
for five (5) seconds in order to flush off the valve seat.
• Permit the valve to “slap” shut. If a leak occurs, repeat
this test and if necessary, replace the valve.
Before commencing this test, ensure that the boiler is
disconnected from all electrical supplies. This test must be
performed by qualified boiler service and maintenance
personnel only.
Step 1:
Remove the covers of the enclosure.
Step 2:
Use #18 insulated, 600V rated wire and connect to the
operating pressure control terminal as shown in
FIGURE_11. This wire will jump the terminals of the
operating pressure control.
Step 3:
Turn ON the boiler control voltage and heating power
supplies. Ensure that the steam outlet valve is closed.
Step 4:
Flip the POWER switch on the boiler controller panel to the
ONposition (FIGURE 12). Ensure that the boiler refills to
nominal water level (approximately half height in the gauge
glass).
Step 5:
Read the pressure
gauge and
observe the steam
pressure rising.
If the boiler is
stamped with
15psig maximum
allowable working
pressure (MAWP),
then the high limit
pressure control
should cut off the
heating at
13.5psig. If the
steam pressure
rises to 15psig,
turn the POWER
rocker switch OFF
immediately. If the
WARNING
Stand clear of scalding water or steam. Disconnect the
boiler from all power supplies.
High Pressure Safety
Limit Pressure Switch:
DO NOT ADJUST!
Operating Pressure
Switch
Pressure Triggered Boiler
Blowoff Pressure Switch
when OPT1016 is
installed
CAUTION
WARNING
3. Boiler Maintenance
3.1 Boiler Blowoff
3.2 Safety Valve Test
3.3 High Limit Pressure Control Test
Jumper
Wire
Terminal
#4
Terminal
#5