Reimers RB Series User manual

PAGE 1
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
4407 Martinsburg Pike Phone: 5406623811
Clear Brook, VA 22624 Fax: 5406658101
USA email: [e-mail]
web: www.reimersinc.com
_______
MODEL
________
SERIAL#
R RH and RHCSteam Boiler Models
(RBSeries)
Instructions Manual

PAGE 2
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
Limited Warranty Information......................................................................4
Important Safety Information.......................................................................5
General Information....................................................................................5
Installation...................................................................................................6
Location......................................................................................................6
Water Supply...............................................................................................7
Steam Outlet...............................................................................................7
Condensate.................................................................................................7
Safety Relief Valve......................................................................................7
Electrical......................................................................................................7
Operation....................................................................................................8
Boiler Startup..............................................................................................8
Control Functions........................................................................................9
Low Water Cutoff Function..........................................................................9
High Pressure Cutoff Function....................................................................9
High Water Level Feed Shutoff...................................................................9
Automatic Boiler Refill.................................................................................9
Automatic Boiler Blowoff.............................................................................9
Remote Controlled Boiler Optional.............................................................9
Boiler Monitor Definitions............................................................................9
Boiler Maintenance.....................................................................................10
Boiler Blowoff..............................................................................................10
Safety Valve Test.........................................................................................10
High Limit Pressure Control Test................................................................10
Element Replacement and Element Cleaning............................................11
Low Water Cutoff Test.................................................................................11
Water Level Probe and Probe Baffle Box Cleaning....................................11
Feed Water Pump Replacement.................................................................12
Gauge Glass Replacement.........................................................................12
Electrical Terminals.....................................................................................12
Troubleshooting..........................................................................................13
Parts Lists...................................................................................................14
Parts List (Continued).................................................................................15
TABLE OF CONTENTS

PAGE 3
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
RB10 ‐ RB30 STEAM BOILERS SERIES
4407 Martinsburg Pike Phone: 5406623811
Clear Brook, VA 22624 Fax: 5406658101
USA email: [email protected]
web: www.reimersinc.com
• Miniature boiler max. vessel volume 1.53
• Maximum safety valve seng 100psi
• All boilers are manufactured in accordance with the requirements of the
A.S.M.E. Boiler and Pressure Vessel Code and A.S.M.E. CSD‐1. Each
boiler bears the Naonal Board Stamp “M”.
• High quality saturated steam, operang pressure range 0 – 85psig
• Very compact design, all controls accessible from boiler front, very
suitable for installaon in ght spaces such as autoclaves
• Heavy duty carbon steel pressure vessel. Vessel jacket and electrical
enclosure 304 stainless steel
• Large selecon of oponal equipment
Features
Standard Equipment of Each Boiler Includes:
• A.S.M.E. pressure relief valve
• One (1) quick opening boiler boom blowoff valve as per A.S.M.E. Code
B31.1
• ½” NPT Bronze steam outlet ball valve
• High pressure feed pump in RBH‐ and RBHC‐models
• Low water cutoff control with manual reset
• One (1) high pressure cutoff control with manual reset
• One (1) operang pressure control
• High water cut‐off control with automac or manual reset
• Magnec contactors
• Main supply power distribuon block
• Indicator lights for POWER, REFILLING, HEATING, ALARMS and Automac
Boiler Blowoff Status
• Pressure and water level gauge
Applications
• Process Steam
• Autoclaves/Sterilizers
• Air Humidificaon
• Dry Cleaning
(*) DIRECT STEAM APPLICATIONS TO FOOD PRODUCTS: Reimers offers stainless steel boilers or #OPT1030 Brass/Bronze free boiler trim opon. This alone does
not guarantee the producon of culinary grade steam. Applicable safety standards (i.e. 3‐A T609) must be considered.
Model Number Key
Feed Water Options:
Blank = Solenoid Valve
H = Solenoid Valve + Pump
Condensate Tank:
Blank = No Condensate Tank
C = Boiler with Condensate
Boiler Power in kW
Safety Relief
Valve Setting:
A = 15psi (1.03bar)
F = 100psi (6.9bars)
Power Supply:
1 = 1Phase
3 = 3Phase
Power Supply
Voltage:
C = 208V
E = 240V
G = 380V
J = 415V
K = 480V
M = 600V
Example: RBHC30E3F = RB‐Series boiler with pump and
condensate tank, 30kW heang power, power supply 240V,
3ph, safety valve set to 100psi.
(1) Each boiler model requires two (2) power
supplies: Primary heang power and secondary
control voltage. Nominal control voltage is 120V,
50/60Hz. Boiler models rated for 380V and 415V are
equipped with control voltage transformers that
require 220/240V applied to their primary side in
order to provide the 120V AC control voltage to the
boiler. As an opon, all boiler models can be
equipped with control voltage transformers so that
only the heang power supply needs to be
connected to the boiler.
(2) Also available in 240V 1PH
(3) On boiler equipped with condensate tank, add
90lbs (41.0kg) to shipping weight
(4) The STEAM CAPACITY listed above is based on
the evaporaon rate from and at 212°F, at 0 psig.
If the boiler feed water temperature is 50°F, then
the STEAM CAPACITY for each model listed above is
approximately 15% lower.
Please note that all information provided within this brochure is approximate and subject to change without notice.
Please contact Reimers Electra Steam, Inc. with any questions regarding the specifications or dimensions detailed within.
• Food Service(*)
• Laboratories
R B

PAGE 4
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
LIMITED WARRANTY – STEAM GENERATORS
Reimers Electra Steam, Inc. warrants the following products of its own manufacture against defects in
materials and workmanship under normal use and service. This warranty is in lieu and excludes all other
expressed or implied warranties or merchantability of fitness for any particular use. No person is authorized to
extend the terms of this warranty or assume any other liability except by written statement signed by an officer
of Reimers Electra Steam, Inc. Clear Brook, Virginia 22624.
WARRANTY PERIOD
The pressure vessel and electrical & mechanical components are warranted for one year from date of
shipment from Reimers Electra Steam, Inc. in Clear Brook, VA 22624.
LIMITATIONS
Products must be installed, used and maintained in accordance with our instructions, including reasonable &
necessary maintenance by the user. Users are responsible for the suitability of the products to their
application. There is no warranty for damage resulting from improper installation, abuse, power failure, fire,
flood, lightening, improper water, misuse, improper specification, misapplication or other operating conditions
beyond our control or parts that are normally expendable in usual course of operation.
Claims against carriers for damage in transit must be filed by the buyer. Reimers liability, if any, will not
exceed the price of Reimers products claimed to be defective.
Components manufactured by any supplier other than Reimers shall bear only that warranty made by the
manufacturer of that product and service for that warranty shall be the responsibility of that manufacturer and
not Reimers.
REMEDY
Claims under this Limited Warranty must be made by obtaining a Return Authorization Number from our office
(PHONE: 5406623811, FAX: 5406658101) & returning the defective part, freight prepaid to: Reimers
Electra Steam, Inc., 4407 Martinsburg Pike, Clear Brook, Virginia 22624
Defective items will be repaired or replaced as necessary within a reasonable time without charge, other than
incidental charges such as freight prepayment. Such repair or replacement within a reasonable time is the
exclusive remedy available from Reimers Electra Steam, Inc., under this Limited Warranty.
CONSEQUENTIAL DAMAGES
Reimers Electra Steam, Inc., is not liable for labor costs incurred in the removal, reinstallation, or unauthorized
repair of product, or for damages of any type whatsoever, including incidental and/or consequential damages.
THIS WARRANTY SUPERSEDES ALL PREVIOUS WARRANTIES.

PAGE 5
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
You have just purchased a quality steam boiler designed to the ASME Boiler Code and registered with the National Board of
Boiler Inspectors. Treat this industrial equipment with care and respect. It is safe when installed, maintained, and used properly.
Read the instruction carefully and contact the factory if you have any questions.
This manual contains safety messages. Each of the safety messages are preceded by one of the following signal word panels:
Safety messages preceded by this label contain information, that if not followed will result in death or serious
injury.
Safety messages preceded by this label contain information, that if not followed could result in death or serious
injury.
Safety messages preceded by this label contain information, that if not followed could result in minor or
moderate injury.
Messages preceded by this label contain important information, but are not hazardrelated.
Ensure that this manual is available to the boiler operator at any time.
Read carefully all safety labels attached to the boiler. If any safety label was damaged during shipment, contact the factory
immediately:
Ph. 5406623811; email: [e-mail]
Read this manual before installing and using this product.
Failure to do so can result in serious injury or death.
WARNING
NOTICE
Important Safety Information
1. GAUGE GLASS: The gauge glass protector guards must be on at all times. When replacing the glass, be sure that the unit is not
under pressure and is cool to touch. The gauge glass should be replaced once per year. If cracks or wear is evident, replace the gauge
glass immediately.
2. MODIFICATION/MISUSE: This pressure tank has been designed and constructed in accordance with the ASME Boiler Code. Any
modification or misuse can result in a dangerous situation. Reimers Electra Steam, Inc. is not liable for any product that has been
modified or improperly used.
3. REGISTRATION: Most states and cities require boiler registration and inspection. Check with your government authorities.
7. INSTALLATION AND REPAIR:
Installation and repair work of this unit must be performed only by experienced personnel. Before commencing a repair, ensure that the
blowoff tank (may be referred to as a blowoff vessel) is cold, and not pressurized. All standard steam safety precautions must be taken
during testing.
8. SAFETY VALVE: The safety valve is designed to discharge hot steam when the set pressure is exceeded. Ensure that the
discharge port is pointing toward the back of the unit away from the operator or any aisles. Test the safety valve periodically to ensure
that it is operating properly. Test carefully at full pressure by lifting lever using pliers and let it “slapping” shut. Steam discharge can
scald. Ensure no one is exposed.
9. STEAM INSTALLATION:
Steam piping must be of black pipe, not galvanized. Work must be done by an experienced steam fitter. All state and local codes must
be met as applicable.
CAUTION
DANGER
WARNING
General Information
All boilers must be blown off periodically to remove minerals, scale and other foreign matter, which accumulate inside the
pressure tank. The concentration of this deposit depends in part upon the condition of the water in the area. 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
makeup 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
tank inspection is performed (refer to boiler instruction manual). If no significant amount of sediment is found at the
bottom of the boiler pressure tank and on the heating element sheaths, then the boiler blowoff frequency can be reduced
accordingly. The safest method to blowoff RB and AR series electric steam boilers is to install a Reimers Electra Steam,
Inc. properly sized and fully trimmed blowdown tank, either ventless model BTANK10C or vented model BTANK10.
Reimers blowdown tanks comply with the National Board NB27 document; are designed & constructed to Section VIII,
Division I of the A.S.M.E. Code, and are inspected by a commissioned National Board Boiler inspector.

PAGE 6
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
1. Installation
REIMERS ELECTRA STEAM, INC. boilers are heated by one or more immersion type heating elements. Automatic
controls are provided to maintain preset operating pressure and proper water supply. Safety features include automatic low
water cutoff, automatic pressure control, safety valve and visible water level gauge. Each boiler is manufactured in accordance
with the ASME Power Boiler Code Standards and is individually inspected and stamped by an authorized National Board
Insurance Inspector. All boilers are registered with the National Board of Boiler and Pressure Vessel Inspectors. When boiler is
received, make sure it has not been damaged in shipment.
NOTE:
ASME DATA PLATE IS LOCATED ON END OF PRESSURE VESSEL BEHIND LABEL STAMPED WITH NATIONAL BOARD
NUMBER OF UNIT.
When boiler is received, make sure it has not been damaged in shipment.
Place the boiler in a level position, close to the equipment which it is to supply. This will insure minimum heat losses and allow
more economical piping arrangements. All steam lines should be insulated. Review the overall dimensions of your boiler model
on page 6 to select proper boiler location.
Regardless of the NFPA70 working space requirements shown below, provide a minimum of 3ft clearance on both sides of the
boiler for element servicing, 3ft of clearance to the front of the boiler and 1.5ft to the rear of the boiler.
a.) Working space:
Electric boiler spacing is dictated by NFPA70, Table 110.26 as follows:
Note: Where the conditions are as follows:
Condition 1 — Exposed live parts on one side of the working space and no live or grounded parts on the other side of the working space, or exposed
live parts on both sides of the working space that are effectively guarded by insulating materials.
Condition 2 — Exposed live parts on one side of the working space and grounded parts on the other side of the working space. Concrete, brick, or tile
walls shall be considered as grounded.
Condition 3 — Exposed live parts on both sides of the working space.
(a) DeadFront Assemblies. Working space shall not be required in the back or sides of assemblies, such as deadfront switchboards or motor control
centers, where all connections and all renewable or adjustable parts, such as fuses or switches, are accessible from
locations other than the back or sides. Where rear access is required to work on nonelectrical parts on the back of enclosed equipment, a minimum
horizontal working space of 762 mm (30 in.) shall be provided.
b.) Alcove or closet installation per UL834: Proper location of this boiler model with regard to combustible and noncombustible surfaces and materials is
coded on the boiler name plate. The following decoding sketch and description is provided for the user information:
Description of dimensions and symbols
A – Clearance above top of boiler
B – Clearance from front of boiler
Prefix C to numeral indicates suitability for closet or alcove installation
Prefix A indicates suitability for alcove but not for closet installation
D – Clearance from back of boiler
EL – Clearance from left side of boiler
ER – Clearance from right side of boiler
F – Indicates type of flooring: "NC" for noncombustible floor / "C" for combustible floor. Numeral indicates minimum clearance below suspended units to
combustible floor
1.1 Location

PAGE 7
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
On models with pump and/or solenoid valve, connect
incoming water supply to strainer on intake side of solenoid
valve.
On models furnished with condensate return tank, connect
water line to makeup valve located at tank end. (See
Instruction Supplement 1 in this manual) R, RH and RHC
steam boiler models require four (4) gallons of feed water
per hour for each 10 kW of electric heating capacity of the
boiler. Lines should be of adequate size and meet local
plumbing codes.
In order to ensure long term troublefree boiler operation,
we recommend that the water used as boiler feed water to
be tested for hardness. If the water in your area is harder
than 1grain (17mg/L), use a water softener. The main
cause for premature heating element failure in electric
steam boilers is water hardness. If severe corrosion during
inspection of the pressure vessel as indicated in chapter
3.4 of this manual becomes evident, additional tests of
your boiler feed water must be performed. A water analysis
should be performed by a qualified and recognized water
treatment company located in your area.
Recommended levels for boiler feed water:
Recommended levels for boiler water (water inside
pressure vessel when boiler is operating)
Connect steam line of sufficient size from steam outlet
valve to the user’s equipment.
If the condensate is to be returned by gravity (no tank) in a
closed system, the load discharge should be at least 2 feet
above the boiler level so that the weight of the condensate
will actuate the check valve. When applicable, install steam
return lines at sufficient height to allow a pitch of 2 inches
for every 10 feet of pipe length.
Note: For condensate return systems (with tank), see
special sheet.
If it is required that discharge piping be installed from the
safety valve, the pipe should not be smaller than the valve
outlet and should be rigidly supported so as not to place
weight on the valve itself.
Important: No valve in this line!
Install a fused disconnect switch near the boiler. It should
be fused as marked on the boiler name plate. Connect the
power supply from the disconnect switch to the terminals in
the boiler control panel.
Important: Electrical connections to the boiler control panel
(FIG. 7) should be made by a qualified Electrician. All
wiring must comply with local electrical codes.
1.6.1 Three Phase Boiler Models Without Power Supply
Extension Box
Do not add any chemicals to the
boiler feed water unless specifically
recommended by a qualified and
recognized water treatment company.
Boiler Feed
Water Supply
Safety Relief
Valve
L
GND
N
GND
L1 L2 L3
CONTROL
VOLTAGE
POWER
1.2 Water Supply 1.3 Steam Outlet
1.4 Condensate Return
1.5 Safety Relief Valve
1.6 Electrical
NOTICE
Figure 01
Figure 02
Figure 03

PAGE 8
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
1.6.2 ThreePhase Boiler Models With Power Supply
Extension Box
1.6.3 SinglePhase Boiler Models With Power Supply
Extension Box
All boiler models that are equipped with a transformer
option (OPT1009 or OPT1011) don’t require a separate
external control voltage power supply.
a. Open steam line valve
slightly. This will allow
the boiler to be filled
without producing back
pressure.
b. Open upper and
lower gauge glass
fixture valve
c. Ensure that the feed
water shutoff valve is in
the OPENposition
d. Close the boiler blow
down valve
e. Throw the fused
disconnect switch (not provided by factory) to the ON
position and
turn on the
boiler control
voltage
f. After approximately 2 seconds, the
WATER FEED light turns on and water enters the boiler. As
soon as the water level reaches approximately half height
in the gauge glass, the automatic water feed turns off.
g. If the boiler controller indicates any alarms, then press
the corresponding RESET button(s).
As soon as no boiler alarms are indicated, the HEATING
light turns on and the boiler starts to build up pressure.
Observe the pressure gauge while pressure builds up, until
NOTICE
Do not let the pump to run dry for an
extended time as this will cause
damage to the pump.
GND
L1 L2 L3
Control voltage
conneced as
shown in 1.6.1
POWER
Turn the
POWER 
switch ON
2. Operation
2.1 Boiler Startup
GND
L1 L2
Control voltage
conneced as
shown in 1.6.1
POWER
Turn the
BLOWDOWN
ENABLE
switch OFF
Figure 04
Figure 05
Figure 06
Figure 07
Figure 08

PAGE 9
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
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
See Boiler Control Manual for detailed instructions.
The control provides four basic functions and two optional
functions. The following overview describes the functions.
Low water cutoff
Boiler high pressure cutoff
High water level feed shutoff
Automatic boiler refill
Automatic boiler blowoff (Optional)
Remote controlled boiler ON/OFF and boiler status
(Optional)
The low water cutoff function of the boiler control de
energizes the heating elements when the water level in the
boiler pressure vessel falls below the minimum acceptable
operating level. The control senses the water level in the
boiler pressure vessel through a probe, E3. When the tip of
the probe is in contact with water in the boiler, the boiler
operates normally. When the water level in the boiler falls
below the tip of the probe the control senses that water
level is low. The control will not deenergize the heating
elements when the probe loses contact with the boiler
water for short periods of time. But, when the probe loses
contact with the probe for a set time, the control de
energizes the heating elements and turns on the “LOW
WATER” boiler alarm light. Boiler operation can only be
resumed after determining why water level is low, restoring
normal water level in the boiler and pressing the “LOW
WATER” reset button [R]. After presseing the “LOW
WATER” reset button the alarm light “LOW WATER” turns
off, the lockout is reset and the heating elements are
energized.
The Low Water CutOff function short cycling timer can be
adjusted. See the Boiler Control Manual (Doc. #9101)
If the operating pressure control fails, the steam pressure in
the boiler can reach the value set on the high limit pressure
control. In that case, the high limit pressure control de
energizes the heating elements and locks them out. The
boiler alarm light “HIGH PRESSURE” comes on. After the
pressure control is replaced the HIGH PRESSURE alarm
light turns off.
When the high water level cutoff probe (E2) comes in
contact with boiler water, the boiler control turns off the
automatic refilling device, feed pump and/or solonoid valve.
At the same time the boiler controller deenergizes the
heating elements, closes the steam outletline through the
solenoid valve (SOL2) and displays a flashing “2” on the
LED display. As soon as the probe E2 looses contact with
the boiler water the boiler controller resumes normal boiler
operation automatically. (The boiler controller can be set to
require that the “EKey be pressed to resume boiler
operation. See the Boiler Control Manual for instructions.)
When the POWER switch is turned on and the water level
probe (E1) is in contact with the boiler water, the boiler
control keeps the boiler water feed pump and/or solenoid
valve deenergized. When the water level probe (E1) loses
contact with the boiler water, the boiler control energizes
the boiler feed pump and/or the solenoid valve after a set
ON delay time. When the water level probe makes contact
with the boiler water, the boiler controller deenergizes the
boiler water feed pump and/or solenoid valve after a set re
fill OFF delay time.
The ON and OFF delay time can be adjusted. See the
boiler control manual for instructions.
If the feedwater pump and/or solenoid valve remains on for
longer than the ON delay time the boiler control de
energizes the feed water pump and/or solenoid valve and
displays a flashing “0” on the control LED display. The “E”
key must be pressed to start a new refilling attempt.
See Boiler Control Manual for instructions.
See Boiler Control Manual for instrucitons.
The following are definitions for all boiler monitor
indications. See the control manual for details including
adjusting all parameters.
Flashing “0”: Boiler feed pump and/or solenoid remained
energized longer than the set time. Boiler feed pump and/
or solenoid are deenergized. Press “E” key to reset alarm
and start a new refilling cycle.
Flashing “1”: Following a blowdown cycle, the automatic
refill device did not stay on for the set time. Press”E” key to
reset the alarm.
Flashing “2”: The high water level probe (E2) has come in
to contact with boiler water. The feed pump and or solenoid
is deenergized and the heating elements are de
energized. As soon as the probe (E2) loses contact with
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
2.2 Control Functions
2.2.1 Low Water Cutoff Function
2.2.2 High Pressure Cutoff Function
2.2.3 High Water Level Feed Shutoff
2.2.4 Automatic Boiler Refill
2.2.5 Automatic Boiler Blowoff (Optional)
2.2.6 Remote Controlled Boiler ON/OFF and Boiler
Status (Optional)
2.3 Boiler Monitor Definitions
Figure 09

PAGE 10
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
the boiler water normal control operation resumes. (This
function may be set to require reset using the E key.)
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 shutoff.
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 makeup 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
Rseries steam boilers is to install a Reimers Electra
Steam, Inc. properly sized and fully trimmed blowdown
tank, model BTANK10 (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
ONposition (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
boiler is stamped
with 100psig
MAWP, then the
high limit pressure
control should cut
off the heating at
90psig. If the
steam pressure
rises to 100psig,
turn the POWER
rocker switch OFF
immediately.
Step 6:
As soon as the
high limit pressure
control trips, the
HIGH PRESSURE
alarm light on the boiler controller terminal turns ON and
the HEATING light turns OFF.
Step 7:
Open slowly the steam outlet valve and discharge steam
until the boiler pressure drops approximately 4psig on
15psig MAWP models and 10psig on 100psig MAWP
models below their cutoff thresholds.
Step 8:
Turn OFF all power supplies to the boiler. Remove the wire
jumper from the operating pressure control and install the
pressure control enclosure cover.
Step 9:
Turn ON all boiler power supplies. After 2 seconds, the
HIGH PRESSURE alarm light should turn ON.
Step 10:
Press the HIGH PRESSURE alarm reset switch. The alarm
light should turn OFF.
If all above steps can be completed as described, then
the high limit pressure control works
properly
This test must be performed monthly.
DO NOT forget to remove the jumper wire before
attempting to resume boiler operation.
CAUTION
WARNING
3. Boiler Maintenance
3.1 Boiler Blowoff
3.2 Safety Valve Test
3.3 High Limit Pressure Control Test
Jumper
Wire
WARNING
Operating Pressure
Control Terminal
High Limit Pressure
Control
Operating Pressure
Control
HIGH PRESSURE Alarm Reset Switch
HIGH PRESSURE Alarm Light
HEATING Light
POWER rocker switch
Figure 10
Figure 11
Figure 12

PAGE 11
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
Clean the element rods every
six (6) months. To clean the
element rods, or if an element
must be replaced, proceed as
follows:
• Remove the element terminal cover from the front ofthe
boiler.
• Disconnect and label the terminal wires
• Remove all four (4) nuts from each element flange and
pull out the heating element
• Use a stiff wire brush to remove all scale and foreign
matter from the element rods.
• Clean the element flange surfaces before installing new
elements and gaskets
Step 1:
Ensure that the boiler is turned ON; steam outlet valve is
closed; the water level is at nominal level (approximately
half height of the gage glass) and the boiler at set
operating pressure.
Step 2:
Unplug the pump cord if installed from the rear of the boiler
electrical enclosure , and if installed, the cord from the feed
water solenoid valve.
Step 3:
Open slowly
the boiler
blowoff valve
until the water
level in the
gage glass
begins
dropping. The
REFILLING
light on the
boiler controller
panel should
turn ON after
dropping the
water level
about 1/4in.
Step 4:
Keep lowering
the water level
to the bottom
of the gage
glass.
Depending on
the setting of
the low water cut off controller, the LOW WATER alarm
light may be already lit. If not, wait for a maximum of 1
minute. After the elapse of this time the LOW WATER light
should be lit.
Step 5:
Continue blowing
down the boiler until
empty.
Step 6:
Turn OFF all boiler
power supplies and
plug in the feed
water pump cord and
if installed the feed
water solenoid valve
cord.
Step 7:
Turn ON all power
supplies to the boiler.
If the controller
displays indicates a
flashing “0”, press
the <E> button to
clear. The boiler should start refilling to nominal water level.
Step 8:
Wait until the water level reaches nominal level in the
boiler. The LOW WATER alarm light should be still lit and
the boiler steam pressure indicated on the gage should be
at least 15 psig below the normal operating pressure in
high pressure boilers and 5psig below normal operating
pressure in low pressure boilers.
Step 9:
Press the LOW WATER reset button on the controller
panel. The LOW WATER alarm light should turn OFF and
the HEATING light should turn ON.
If all above steps can be completed as described, then the
low water cutoff controller works properly.
This test must be performed weekly.
In order to provide reliable automatic water level control,
the water level probes are located inside a funnel shaped
probe baffle, welded to the inner wall of
the pressure vessel. The probe baffle has
direct connection to the top and bottom of
the pressure vessel so that the probes can read the water
level, protected from foam and bursting steam bubbles
that form on the surface of the boiler water.
The probe baffle must be cleaned every six (6) months of
sediments and other debris that accumulates at the bottom
of the baffle. To
accomplish this,
proceed as follows:
Step 1:
Remove the water level
probe cover, disconnect
from each probe the
wire and label it.
Remove first the Short
Probe and inspect the
probe rod. If sediment
has accumulated, use a
stiff wire brush to
remove it. Install the
probe in its place in the
shell.
Repeat the above
cleaning procedure for
the other probes.
3.4 Element Replacement and Element Cleaning
Element Rods
3.5 Low Water Cutoff Test
3.6 Water Level Probe and Probe Baffle Box Cleaning
Short Probe
Long Probe
Middle
Probe
WARNING
WARNING
WARNING
NOTICE
Before commencing this test, ensure
that the boiler blowoff valve is piped to
a blowdown tank.
Ensure that the boiler is cold, drained
and all power supplies are
disconnected
Ensure that the boiler is cold,
drained and all power supplies are
disconnected.
Figure 13
Boiler
Blowfoff
Valve
Pump &
Solenoid
Valve Cords
Figure 14
LOW WATER Alarm Reset Switch
LOW WATER Alarm Light
HEATING Light
POWER rocker switch
Figure 15
REFILLING Light
Controller Display
Figure 16

PAGE 12
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
Do not install the Long
Probe yet.
Step 2:
Remove the pipe plugfrom
the boiler blowoff line
as shown in FIGURE 16.
Step 3:
Insert two (2) 1/4in OD
copper tubes or any other
soft rods through the Long
Probe opening and
through the boiler blowoff
opening into the pressure
vessel to remove
sediments from the
bottom of the probe baffle.
Step 4:
Put a flash light above the
Long Probe opening and
observe whether light is visible through the boiler blowoff
opening. If no light is visible, then repeat inserting the
copper tube through the Long Probe opening and pushing
towards the bottom to remove further sediment from the
probe baffle. If there is a significant amount of sediment
visible at the bottom of the pressure vessel, then the
heating elements must be removed as shown in chapter
3.4 and the sediments scooped out through the element
openings.
Step 5:
Install the Long Probe into the shell and connect all probe
wires.
Ensure that all power supples are
disconnected and that there is no
pressure in the boiler.
When replacing the feed water pump on RHmodels,
proceed as follows (ref. FIGURE 18):
• Unplug the Pump Power Cord (1) of the pump that needs
to be replaced.
• Close the Feed Water Shutoff Valve (2)
• Disconnect the Pump Ports from the Solenoid Valve (3)
and Boiler Water Feed Line (4)
• Unscrew the pump from the pump plate
• Install the new pump
• Open the Feed Water Shutoff Valve (2)
• Turn ON all power supplies to the boiler
• Turn ON the “POWER” – switch of the boiler controller.
Observe the water level in the gauge glass and ensure
that the pump fills the boiler to its nominal water level
• Close the Boiler Steam Outlet Valve (5) and wait until the
boiler reaches its set operating steam pressure
Gauge glass should be replaced 612 months or as
needed.
Electrical terminals on Power Distribution Blocks,
Contators, and heating elements should be retightened
every 6 months.
Figure 17
Figure 18
3.7 Feed Water Pump Replacement
WARNING
3.8 Gauge Glass Replacement
Close gauge
glass valves
(Top and Bottom)
Remove gauge
glass protector
rods
Step 1 Step 2
Open drain
valve on bottom
fixture to drain
glass
Loosen nuts at
top and bottom
of glass
Step 3 Step 4
Slide glass up,
pull out on
bottom of glass
and remove
Install new glass
by performing the
above procedur
ein reverse order.
Always install
new rubber
washers.
Step 5 Step 6
NOTICE Probe baffle and probes should be
inspected and cleaned every 6 months
3.9 Electrical Terminals
2
3
1
4

PAGE 13
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
4. Troubleshooting
Ensure that the boiler is cold and has no pressure.
Electrical trouble shooting must be performed by a qualified electrician.
If trouble shooting did not resolve problem, please contact our service technicians at:
Phone: 5406623811
Email: techsup[email protected]
WARNING

PAGE 14
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
5. Parts list for R, RH and RHC Boiler Models
(RESeries)
Use Reimers replacement parts. All components are designed and approved to be used in this
Underwriters Laboratories listed and ASME National Board Stamped boiler. Failure to do so may
cause serious injury or death.
11
10
1
17
9
3C
8
4
17
7
6
15
13
Low Water CutOff Probe (E3): Connect this probe to wire marked “14”
Automatic Refill Probe (E1): Connect this probe to wire marked “13”
High Water Level CutOff Probe (E2): Connect this probe to wire marked “10”
Please refer also to the boiler wiring diagram and Figure 12 for proper probe identification.
E3 E1 E2
WARNING
5
2
14
12
11
16
15
6
8
7
16
3A
3B

PAGE 15
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7

PAGE 16
Reimers Electra Steam, Inc. 05/23/2022 RB‐30 Manual REV 7
I1. Installation
Step 1: Connect water supply to water intake on tank (1). If
the city water line pressure exceeds 40psi, install a
pressure reducing valve.
Step 2: Connect the condensate return line from the
equipment to the condensate return intake (2). Pipe from
the vent (3) is to be installed to outside of the building, if
desired. If this method is used, the pipe should be the
same size as the vent opening.
Step 3: Install piping from the overflow (4) to a drain.
I2. Startup
Step 1: Turn all boiler power supplies on.
Step 2: Open the water supply valve to begin filling the
condensate tank with water. Observe the water level in the
tank gauge glass. When the float valve inside the tank
closes, the water level should be still visible in the upper
portion of the gauge glass.
Step 3: Open the boiler steam outlet valve (9).
Step 4: Ensure that the feed water shutoff valve (5) and the
condensate pump supply valve (6) are in the open position.
Step 5: Flip the POWERswitch (7) to the ON position. The
pump should turn on.
Step 6: Open the pump primer valve (8) slightly and wait
until water discharges. Close this valve.
Step 7: Wait until the pump stops. After the pump has
stopped, the water level in the boiler gauge glass should
be at approximately half height of the glass.
Step 8: Close the steam outlet valve (9) and wait until the
boiler builds up pressure to its preset value.
Step 9: Open slowly the steam outlet valve (9) to supply
steam to the process.
I3. Maintenance
a. Strainer – The strainer (10) should be removed and
cleaned shortly after boiler has been in operation to clear
away sediment, which may have accumulated during start
up. This strainer should be periodically inspected and
cleaned when necessary.
b. Gauge Glass  See Boiler Instructions.
c. Pump Motor  Maintenance is normally not required on
the pump or motor (11).
I4. Condensate Return System Parts List
Part# Description
02005 Gague Glass 5/8" x 7
02001 Gauge Glass Fixture Set
02027 Strainer 1"
02358 Screen for Strainer
02360 Pump/Motor 120/240 1/3PH 1/3HP
02024 Complete Makeup Valve Assembly
02070 Makeup Valve
02085 Float Ball
02086 Gasket
Instruction Supplement 1
Condensate Return System
Water supply should be turned off
when the boiler is not in operation.
WARNING
Under no condition should the vent be
plugged.
WARNING
9
6
5
11
10
32
7
8
611
10
1
4
8