IMS Hydra Pressurized User manual

© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
Hydra™ Pressurized, Open-Loop
Mold Temperature Controllers
INSTRUCTION MANUAL
January, 2007
IMS Company
10373 Stafford Road
Chagrin Falls, OH 44023-5296
Telephone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.imscompany.com
Hydra™ is a trademark of IMS Company

© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
2
FOREWORD..............................................................................................................................................................................4
INSTALLATION..........................................................................................................................................................................4
Receiving Inspection ..........................................................................................................................................................4
Rigging, Handling, and Locating Equipment ....................................................................................................................4
Electrical Power..................................................................................................................................................................4
Table 1 - Voltage Utilization Range..............................................................................................................................4
PROCESS CONNECTIONS......................................................................................................................................................5
START-UP ..................................................................................................................................................................................5
CONTROL PANEL OPERATION ...............................................................................................................................................7
Table 2 - Microprocessor Control Fault Logic.............................................................................................................7
Power .................................................................................................................................................................................8
Start ....................................................................................................................................................................................8
Stop....................................................................................................................................................................................8
Purge..................................................................................................................................................................................8
Alarm Silence .....................................................................................................................................................................8
Lower Set Point Temperature ............................................................................................................................................8
Raise Set Point Temperature .............................................................................................................................................8
Low Pressure .....................................................................................................................................................................8
High Temp Safety...............................................................................................................................................................8
Pump Motor Overload .......................................................................................................................................................8
Over Set Point....................................................................................................................................................................9
Under Set Point..................................................................................................................................................................9
Pump On............................................................................................................................................................................9
Heat ....................................................................................................................................................................................9
Cool....................................................................................................................................................................................9
Vent ....................................................................................................................................................................................9
Probe Fault.........................................................................................................................................................................9
Changing Temperature Display Scale...............................................................................................................................9
Seal Saver™ .....................................................................................................................................................................10
Auto Tune .........................................................................................................................................................................10
Diagnostic Error Codes ...................................................................................................................................................11
Table 3 - Diagnostic Error Codes ..............................................................................................................................11
CONTROL OPTIONS ..............................................................................................................................................................12
Return Water Temperature Display ..................................................................................................................................12
Remote On/Off Contacts..................................................................................................................................................12
Remote Alarm Contacts ...................................................................................................................................................12
Alarm Horn .......................................................................................................................................................................12
Remote Control Panel ......................................................................................................................................................12
SPI Communications........................................................................................................................................................12
Table 4 - SPI Baud Rate Adjustment .........................................................................................................................13
Table of Contents

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3
OPERATION..........................................................................................................................................................13
CONSTRUCTION..................................................................................................................................................13
Pump Assembly .............................................................................................................................................13
Heater and Mixing Tube .................................................................................................................................13
Heater (not available on RB and RBD units) .................................................................................................13
Cooling Solenoid or Modulating Valve ..........................................................................................................13
Pressure Switch..............................................................................................................................................13
Pressure Relief Valve ......................................................................................................................................14
STANDARD OPTIONS ..........................................................................................................................................14
Stacking Bracket Kit (RA & RB series)...........................................................................................................14
Mold Water Purge...........................................................................................................................................14
Crash Cool......................................................................................................................................................14
PREVENTIVE MAINTENANCE .............................................................................................................................14
Once a Week ..................................................................................................................................................15
Once a Month.................................................................................................................................................15
TROUBLESHOOTING ..........................................................................................................................................16
CHARTS & PUMP CURVES .................................................................................................................................17
Table 5 –Single-Zone Unit Electrical Specifications .................................................................................17
Table 6 – Dual Zone Unit Electrical Specifications...................................................................................18
Figure 1 – RA, RAD, RB, RBD Series Pump Curves ................................................................................19
DRAWINGS...........................................................................................................................................................19
WARRANTY...........................................................................................................................................................20

© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
4
FOREWORD
The intent of this manual is to serve as a guide fo placing your
temperature control unit in service and operating and
maintaining it properly. This manual is supplemented as
required to accommodate any special items that may have
been provided for a specific application. The written information
contained in this manual, as well as various drawings, are
intended to be general in nature. The schematics included in
this manual are typical only. Actual schematics are included in
the electrical enclosure of the unit and should be referred to for
troubleshooting and servicing of the unit. Additional copies of
drawings are available upon request. We strive to maintain an
accurate record of all equipment during the course of its useful
life. While every effort is made to standardize the design
features of these units, the various options may make it
necessary to rearrange some of the components; therefore,
some of the general drawings in this manual may differ from
your specific unit.
Specific references to current applicable codes, ordinances,
and other local laws pertaining to the use and operation of this
equipment are avoided due to their ever-changing nature. There
is no substitute for common sense and good operating
practices when placing any mechanical equipment into
operation. We encourage all personnel to familiarize themselves
with this manual's contents. Failure to do so may unnecessarily
prolong equipment down time.
It is recommended that good piping practices are followed and
that the information in this manual is adhered to. We cannot be
held responsible for liabilities created by substandard piping
methods and installation practices external to the unit.
We trust your equipment will have a long and useful life. If you
should have any questions, please contact our Tech Service
Department specifying the serial number and model number of
the unit as indicated on the nameplate.
Note: RD and RE Series units are nearly identical in internal
function and design, The RD unit however, features a self
diagnostic temperature control microprocessor panel, while
the RE unit uses a simple plug-in type controller. Applicable
control, operation, and start-up differences are noted within
this manual.
Installation
Receiving Inspection
Each unit is skid mounted and boxed or crated to protect it
during shipping. Before accepting delivery, check the box or
crate for visible damage. If damage is evident, it should be
properly documented on the delivery receipt and the box or
crate should be immediately removed to allow for detailed
inspection of the unit. Check for broken water lines, damaged
controls, or any other major component torn loose from its
mounting point. Any sign of damage should be recorded and a
claim filed immediately with the shipping company. In order to
expedite payment for damages it is important to record and
document damage. An excellent way to do this is by taking
pictures. Our Tech Service Department will provide assistance
with the preparation and filing of your claims, including
arranging for an estimate and quotation on repairs.
Rigging, Handling, and Locating Equipment
The units have a steel base platform and casters for easy
positioning. For lifting proper rigging methods must be followed
to prevent damage to components. Avoid impact loading
caused by sudden jerking when lifting or lowering the unit.
Use pads where abrasive surface contact is anticipated.
The unit is designed for indoor use. If it is necessary to store
the unit in an unheated area when not in use, be sure that all
water is drained or that an adequate amount of antifreeze is
added to prevent freeze-up of the unit. A primary concern when
designing your unit was serviceability, therefore, the unit should
be located in an accessible area.
Electrical Power
All wiring must comply with local codes and the National Electric
Code. Minimum circuit ampacities and other unit electrical data
are on the unit nameplate and are shown in the Electrical
Specification section at the back of this manual. A specific elec-
trical schematic is shipped with the unit. Measure each leg of
the main power supply voltage at the main power source.
Voltage must be within the voltage utilization range given in
Table 1.
Table 1 - Voltage Utilization Range
Rated Voltage Utilization Range
230 208 to 254
460 414 to 506
575 516 to 633
If the measured voltage on any leg is not within the specified
range, notify the supplier and correct before operating the unit.
Voltage imbalance must not exceed two percent. Excessive
voltage imbalance between the phases of a three-phase system
can cause motors to overheat and eventually fail. Voltage
imbalance is determined using the following calculations:
% Imbalance = (Vavg – Vx) x 100 / Vavg
Vavg = (V1+ V2+ V3) / 3
Vx= phase with greatest difference from Vavg

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5
For example, if the three measured voltages were 442, 460, and
454 volts, the average would be:
(442 + 460 + 454) / 3 = 452
The percentage of imbalance is then:
(452 – 442) x 100 / 452 = 2.2 %
This exceeds the maximum allowable of 2%.
A terminal block is provided for main power connection to the
main power source. The main power source should be
connected to the terminal block through an appropriate
disconnect switch. A separate lug for grounding the unit is also
provided in the main control panel. Electrical phase sequence
must be checked at installation and prior to start-up. Operation
of the compressor with incorrect electrical phase sequencing
will result in mechanical damage to the compressors. The
phasing must be checked with a phase sequence meter prior to
applying power. The proper sequence should read “ABC” on the
meter. If the meter reads “CBA”, open the main power
disconnect switch and switch two line leads on the line power
terminal blocks (or the unit mounted disconnect). All
components requiring electric power are wired in-phase at the
factory. Do not interchange any load leads that are from the
unit contactors or the motor terminals.
WARNING: It is imperative that L1-L2-L3 are
connected in the A-B-C phase sequence to
prevent equipment damage due to reverse
rotation.
WARNING: The control panel and safeties are
wired such that connecting the appropriate
power source to the main terminal block
energizes the entire electric circuitry of the
unit. A control transformer has been factory
wired to step down the incoming power to the
115-volt control power. Electric power at the
main disconnect should be shut off before
opening access panels for repair or
maintenance. The unit must be properly
grounded in compliance with local and national
codes.
Process Connections
The importance of properly sized piping or hose between the
temperature control unit and the process equipment cannot be
overemphasized. In general, run full size piping out to the
process and then reduce the pipe size to match the connections
on the process equipment. One of the most common causes of
poor temperature control unit performance is poorly designed
piping. Avoid unnecessarily long lengths of hoses and piping as
well as quick disconnect fittings that offer high resistance to
water flow. When manifolds are required for water distribution,
they should be installed as close to the point of use as possible.
The return line should be the same size as the supply line. In
addition to the process water connections, the unit requires a
cooling water supply and return connection. We recommend
shut-off valves at each machine to allow for isolation and
removal of the unit.
START-UP
Every unit is factory set to deliver temperature controlled water
in accordance with the standard operating specifications for that
particular unit. Due to variables involved with different
applications and different installations, minor adjustments may
be required during the initial start-up to ensure proper operation.
The following start-up procedure should be followed in
sequence. If trouble is encountered during start-up, the fault can
usually be traced to one of the control or safety devices. This
outline can be used as a checklist for the initial start-up and for
subsequent start-ups if the unit is taken out of service for a
prolonged period of time.
1. Assure the main power source is connected properly, that it
matches the voltage shown on the nameplate of the unit,
and that it is within the voltage utilization range given in
Table 1. Electrical phase sequence must be checked at
installation and prior to start-up. Operation of the unit with
incorrect electrical phase sequencing will result in improper
performance and potential damage. The phasing must be
checked with a phase sequence meter prior to applying
power. The proper sequence should read “ABC” on the
meter. If the meter reads “CBA”, open the main power dis-
connect switch and switch two line leads on the line power
terminal blocks (or the unit mounted disconnect). All com-
ponents requiring electric power are wired in-phase at the
factory. Do not interchange any load leads that are from
the unit contactors or the motor terminals.
WARNING: It is imperative that L1-L2-L3 are
connected in the A-B-C phase sequence to
prevent equipment damage due to reverse
rotation.
2. Once proper power connection and grounding have been
confirmed, turn the main power on.
3. Check all water line connections to ensure they are properly
sized and installed. All water lines and connectors should
be rated for a minimum of 250°F (121°C) and 150 PSI (10.5
Bar). We recommend the cooling water supply and return
lines are of metal composition (black steel, galvanized or
copper).

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6
4. Check the pressure switch to ensure it is properly set for the
intended operating temperature. The pressure switch is
factory set for 15 PSI (1.05 Bar) and the unit will not start
unless the cooling water pressure is 15 PSI (1.05 Bar) or
greater. For set point temperatures above 200°F (93°C) the
pressure switch should be set for a minimum of 25 PSI
(1.75 Bar).
5. Make sure that the supply chilled water source is the
appropriate temperature and pressure for your application
as determined when the unit was selected. In most cases,
the cooling water temperature is between 40°F (4.4°C) and
85°F (29.4°C). The cooling water source pressure must be
above the set point of the pressure switch in order for the
unit to start. For most applications the design cooling water
pressure is between 25 PSI (1.75 Bar) and 50 PSI (3.5 Bar).
If the supply cooling water pressure is higher than 50 PSI
(3.5 Bar), a pressure-regulating valve should be installed on
the supply line to the temperature control unit. For
assistance in installing a pressure-regulating valve please
contact our Tech Service Department.
6. Turn on the control power by pressing the Power button
located on the control panel of the unit. The digital displays
should now be illuminated. Press the Start button. The unit
will initiate an Auto Vent sequence. This sequence opens
the cooling solenoid for 30 seconds to vent air from the
system. After 30 seconds the cooling solenoid will remain
open and the pump will be energized for an additional 30
seconds. This should clear all of the air out of the system.
7. Check the rotation of the pump. If the pump is running
backwards, switch two of the main power leads, after
shutting off the disconnect switch.
8. The set point temperature should now be entered. Refer to
the Control Panel Operation section for further information.
The unit is now ready to be placed into service.

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7
Control Panel Operation
The temperature control unit includes a microprocessor controller designed to perform all control functions directly from the front
panel. When a button is pressed, a click will be felt and the
corresponding LED will be energized.
The table shown below provides the basic control fault logic for the microprocessor controller.
Table 2 - Microprocessor Control Fault Logic
Alarm Manual Remote
Fault Alarm Pump Shut Heater Shut Unit Shut Reset Reset Alarm
Indication Off Off Off Required
1Required 2Activated 3
Low Pressure LED Yes Yes Yes No No Yes
High Temperature Safety LED Yes Yes Yes Yes No Yes
Pump Motor Overload LED Yes Yes Yes Yes Yes Yes
Over Set Point LED No No No No No Yes
Under Set Point LED No No No No No Yes
Probe Fault LED Yes Yes Yes Yes No Yes
Low Power Pr OFF Yes Yes Yes Yes No Yes
1Alarm Reset button or Stop button on control panel must be pressed.
2Safety control must be manually reset before the controller can be reset.
3Activates the alarm horn (if included) and closes the alarm contact (if included).

Power
Depressing the Power button will switch the control power on or
off. When the Power button is pushed the microprocessor initi-
ates a diagnostic routine to determine if a brownout has
occurred. The Power button must be pushed to initiate control
power before either the Start button or remote on/off contacts
can start the unit.
Start
Depressing the Start button will start the pump and enable the
microprocessor control functions and initiate an Auto-vent
sequence.
The Auto Vent sequence is designed to remove air from the
water circuit of the process equipment. For the first 30 seconds
of the sequence the cooling valve is opened to allow air to
escape. After this, the valve is left open and the pump is ener-
gized for the remaining 30 seconds of the sequence to further
remove air from the system.
Stop
Depressing the Stop button will stop the pump, stop any Auto
Tune sequence, clear all faults and suspend the microprocessor
control program.
Purge
Pressing the Purge button will open the cooling solenoid or
modulating valve. This feature is designed to allow the mold
circuit to be purged of water with compressed air. It will only
function if the power is on but the heater and pump are off. This
feature should be used only after pressing the Stop button. The
external valves and associated parts required for compressed
air connection are an available option from our parts
department.
Alarm Silence
The Alarm Silence button is only functional if the Alarm Horn
option and/or Remote Alarm Contact option has been
purchased. If the Alarm Horn option has been purchased,
depressing the Alarm Silence button will disable the horn. The
horn will not reactivate until the alarm has been reset and a
subsequent alarm has been triggered. If the Remote Alarm
contacts option has been purchased, depressing the Alarm
Silence button will open the contact that was closed when the
alarm occurred. The contact will not close again until the alarm
has been reset and a subsequent alarm has been triggered.
Lower Set Point Temperature
Depressing and then releasing the Lower Set Point Temperature
button will decrease the set point temperature by 1°F (or 1°C). If
the Lower Set Point Temperature button is held down, the set
point temperature will continue to decrease until the button is
released or the minimum allowable set point temperature is
reached.
Raise Set Point Temperature
Depressing and then releasing the Raise Set Point Temperature
button will increase the set point temperature by 1°F (or 1°C). If
the Raise Set Point Temperature button is held down, the set
point temperature will continue to increase until the button is
released or the maximum allowable set point temperature is
reached.
Low Pressure
The Low Pressure LED will be illuminated if the inlet cooling
water pressure drops below the set point of the low-pressure
safety switch. If a low-pressure condition occurs, the unit will
automatically stop and remain de-energized until the cooling
water pressure rises back above the cut-in set point of the
pressure switch.
High Temp Safety
The High Temp Safety LED will be illuminated if the To Process
temperature exceeds 260°F (127°C). The High Water
Temperature LED will turn off when the water temperature is less
than 260°F (127°C). This fault will stop operation of the unit. To
clear this fault after the fault condition has been corrected,
depress the Stop button; restart the unit by depressing the Start
button.
Pump Motor Overload
The Pump Motor Overload LED will be illuminated if the motor
overload opens. This fault will stop operation of the unit. To clear
this fault after the fault condition has been corrected, depress
the Stop button; restart the unit by depressing the Start button.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
8

Over Set Point
The Over Set Point LED will be illuminated if the To Process tem-
perature exceeds the Set Point temperature by more than 5°F
(3°C). This fault causes only an alarm indication (horn and/or
remote contact) and the unit will continue to operate. Although
the Over Set Point LED will turn on immediately whenever the
temperature is out of range, the alarm relay is disabled for 30
minutes after start-up or after a change in set point. The alarm
will automatically clear when the To Process temperature is no
more that 5°F (3°C) above the Set Point temperature.
Under Set Point
The Under Set Point LED will be illuminated if the To Process
temperature drops below the Set Point temperature by more
than 5°F (3°C). This fault causes only an alarm indication (horn
and/or remote contact) and the unit will continue to operate.
Although the Under Set Point LED will turn on immediately
whenever the temperature is out range, the alarm relay is dis-
abled for 30 minutes after start-up or after a change in set point.
Pressing the Alarm Reset button will reset this fault.
Pump On
The Pump On LED will be illuminated whenever the pump is
running. If the pump is shut off due to a safety, the Pump On
LED will turn off. The Start button must be pressed in order to
restart the pump.
Heat
The Heat LED will be illuminated when the microprocessor
determines that heating is required. For those units with heaters,
the Heat LED will be illuminated while the heater is energized.
For units without heaters, the Heat LED illuminates depending
on unit set point parameters.
Cool
The Cool LED will be illuminated when the microprocessor
determines that cooling is required. The Cool LED will be illumi-
nated while the cooling solenoid or modulating valve coil is
energized, or when the compressed air purge option is used
during the Auto Vent sequence.
Vent
The Vent LED will be illuminated while the microprocessor is
performing an Auto Vent sequence. This sequence is performed
each time the Start button is pressed to energize the unit unless
the temperature is above 150°F. The Auto Vent sequence opens
the cooling solenoid or modulating valve for 30 seconds to vent
air from the mold circuit. Then the valve is kept open and the
pump is energized for an additional 30 seconds. The Vent LED
will also be on when the optional compressed air purge is used.
Probe Fault
The Probe Fault LED will illuminate if the signal from the thermo-
couple is out of tolerance. This fault will also shut off the com-
pressor and the pump. Pressing the Alarm Reset button will
reset this alarm.
Changing Temperature Display Scale
This unit was shipped to display temperatures in either °F or °C.
The following step can be followed to determine what tempera-
ture scale is in use and will provide instructions as to how to
change from one scale to another.
1. Disconnect main power.
2. Open the control panel and switch DIP switch #3 to the on
position and close control panel.
3. Reconnect main power.
4. With the power connected and the control power off, hold
down the Stop button. While holding the Stop button down,
press the Power button. When the controller illuminates,
release both buttons.
5. The To Process display will read "Unt". The Set Point display
will show either "F" or "C" depending on the current display
units selected. If "F" is displayed the temperature display is
in °F mode. If "C" is displayed the temperature display is in
°C mode.
6. To change from °F to °C press the Lower Set Point
Temperature button. To change from °C to °F press the
Raise Set Point Temperature button.
7. The Set Point display now indicates the desired display
units.
8. Press and release the Start button to store the new selection
into the controller memory.
9. Press and release the Power button once to exit the func-
tion. Press and release the Power button again to restore
controller power.
10. Disconnect main power.
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9

11. Open the control panel and switch DIP switch #3 to the off
position and close control panel.
12. Reconnect main power.
The unit is now set and will remain set with the selected
temperature scale until the above steps are repeated.
Seal Saver™
Each unit has a Seal Saver program built into the controller that
can be activated when turning off the unit. This software is
designed to reduce water temperature before the unit shuts off
to extend the life of the seal. Here is how to activate this feature:
1. Press the Start button and while holding in the Start button,
momentarily press the Stop button. Both keys can then be
released.
2. The solenoid valve will remain open, bringing cool water to
the unit. This will continue until either the temperature of the
water reaches 90°F (32°C) or for 120 seconds, whichever
occurs first.
3. Once activated, the Stop LED will flash and the Set Point
display will toggle between the actual set point and the 90°F
(32°C) Seal Saver cool down value. The actual set point can
be changed at this time if desired.
4. When the water reaches 90°F (32°C) or 120 seconds have
elapsed, the control will enter the normal stop mode. The
Stop LED will discontinue flashing and the Set Point display
will revert to the actual set point value.
5. Seal Saver will not activate if the Process Temperature is less
than 90°F (32°C). If the Stop button is pressed at any point
during Seal Saver operation, the unit will stop all operation. If
the Start button is pressed at any point during Seal Saver
operation, the unit will return to normal running operation, at
the original set point.
6. Seal Saver will not activate under the following circum-
stances: Auto Tune is running, the first 60 seconds of
operation, or if the set point is under 90°F (32°C).
This process must be repeated every time you wish to activate
Seal Saver. To deactivate Seal Saver, change the configuration
DIP switch #2 to the "Off" position.
Auto Tune
In most cases, the standard program entered into the
microprocessor controller at the factory provides excellent
temperature control; however, there are occasions where a
particular application may require additional fine-tuning of the
control parameters. To make this procedure as simple as
possible, this controller has been equipped with an Auto Tune
function.
The Auto Tune function is designed to automatically select the
best control parameters based upon the particular system that
the unit is connected to. At the factory, certain parameters have
been limited so that the Auto Tune program cannot select val-
ues that could cause damage to certain components. The fol-
lowing procedure should be followed if there is a need for the
Auto Tune program to be run.
Note: Do not use the Auto Tune function until it is verified
that the unit is operating normally and there is not a failure
of a component. Make sure that the lines are properly sized
and there is sufficient incoming water pressure. If the
application is for heating, other changes are needed and
you should contact our Tech Service Department.
1. Make sure that the flow and pressure through the process are
set at the proper levels for that particular installation. Poor
temperature control accuracy is often caused by low coolant
flow through the process.
2. The Auto Tune program must be run with no heat load being
added by the process. The program may take up to 30
minutes to run.
3. To activate Auto Tune, change DIP switch #8 to the "On"
position.
4. The unit must be in the stop mode and the process
temperature must be at ambient.
5. Hold the Start button down for 7 seconds.
6. The Auto Tune program will abort under these conditions:
a. Pressing the Stop button while Auto Tune is in progress.
b. If the temperature difference between the process value
and the set point is less than 8°F (4.5°C ) after the vent
sequence.
c. The software is unable to obtain a good approximation
of the PID parameters after 30 minutes has elapsed.
This condition can occur if the control loop was dis
turbed by external elements or if the control elements
are faulty.
If any of the above conditions occur, the previous control
parameters will be restored.
7. To abort the Auto Tune program at any time, press the Stop
button, and the previous control parameters will be restored.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
10
Seal Saver™ is a trademark of Thermal Care

Diagnostic Error Codes
Several different error codes may be displayed on the digital readouts labeled To Process and Set Point. Most of the possible error
codes indicate some type of failure in the microprocessor controller. Below is a list of the error codes. If there are any error codes
other than the one listed below, try to reset the unit by shutting the power off and then turning it back on. If this does not work, make
a note of the error code and contact our Tech Service Department for further assistance.
Table 3 - Diagnostic Error Codes
Error Description Cause/Corrective Action
Pr Off Brown Out Indication The Pr Off code will be indicated on the display if the unit is running and main power is
discontinued or drops more than 10% below the normal operating voltage, the unit will shut down
and the Pr OFF fault will be indicated on the digital displays. Pressing the Stop button will clear
this fault condition.
101 EEPROM Failure Controller requires servicing. Contact Manufacturer for repair or replacement.
102 A/D Converter Failure Controller requires servicing. Contact Manufacturer for repair or replacement.
103 Controller serial bus failure Controller requires servicing. Contact Manufacturer for repair or replacement.
105 CJC Error Controller requires servicing. Contact Manufacturer for repair or replacement.
109 Unused memory byte changed Controller requires servicing. Contact Manufacturer for repair or replacement.
110 Device or communication Controller requires servicing. Contact Manufacturer for repair or replacement.
configuration change or invalid
111 Fixed parameter associated Controller requires servicing. Contact Manufacturer for repair or replacement.
with range invalid
112 Setpoint out of temperature range Controller requires servicing. Contact Manufacturer for repair or replacement.
113 RAM hardware failure Controller requires servicing. Contact Manufacturer for repair or replacement.
114 Invalid device configuration Controller requires servicing. Contact Manufacturer for repair or replacement.
117 Invalid program counter Controller requires servicing. Contact Manufacturer for repair or replacement.
118 Infinite software loop detect Controller requires servicing. Contact Manufacturer for repair or replacement.
119 Data direction register failure Controller requires servicing. Contact Manufacturer for repair or replacement.
120 Communication data register failure Controller requires servicing. Contact Manufacturer for repair or replacement.
121 Timer data register failure Controller requires servicing. Contact Manufacturer for repair or replacement.
122 Hardware watchdog data register failure Controller requires servicing. Contact Manufacturer for repair or replacement.
123 Option data register failure Controller requires servicing. Contact Manufacturer for repair or replacement.
125 Jumper for temperature The Err 125 fault code will be indicated on the digital displays if the jumper is loose or missing
controller missing on the control circuit board.
129 Input Contact Chatter Controller requires servicing. Contact Manufacturer for repair or replacement.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
11

Control Options
Return Water Temperature Display
This option allows the To Process digital display to indicate To
Process or Return Water temperatures. To view the Return
Water temperature, hold down the Lower Set Point Temperature
and Raise Set Point Temperature buttons simultaneously. Once
the buttons are released, the display will return to the To
Process temperature.
Remote On/Off Contacts
This option allows the unit to be turned on and off via a remote
contact closure. Two terminals are provided in the control panel
to be wired to a remote contact closure device. Switching the
contacts from open to close simulates pressing the Start button
on the control panel. Switching the contacts from closed to
open simulates pressing the Stop button. Please note that the
Remote On/Off contacts are nonfunctional until the Power but-
ton has been depressed and the control circuit has been ener-
gized. This option also includes a remote/local toggle switch
that allows the operator to disable the remote contacts for safety
purposes while the unit is being serviced.
Note: Do not introduce any external voltage to these con-
tacts as this will result in damage to the microprocessor,
which will not be covered by the warranty.
Remote Alarm Contacts
This option includes a set of dry (no voltage induced by the
unit), normally open contacts that will close when there is an
alarm condition. Refer to Table 2 for the Microprocessor Control
Fault Logic to determine which faults will trigger the Remote
Alarm contacts. The contacts will reopen by clearing the fault or
by pressing the Alarm Silence button.
Alarm Horn
This option includes an alarm horn that will be activated by cer-
tain faults. Refer to Table 2 for the Microprocessor Control Fault
Logic to determine which faults will trigger the Alarm Horn. The
Alarm Horn will be silenced by clearing the fault or by pressing
the Alarm Silence button. If this option is selected in
conjunction with the remote control panel, the Alarm Horn will
be mounted on the unit and not the remote control panel.
Remote Control Panel
This option removes the display and control buttons from the
unit and places them in a small hand-held NEMA-1 enclosure.
Included with this option is a 50 Ft (15 M) cable to connect the
controller and the unit. All control functions are available to the
operator at the location of the remote panel and no control
functions are available at the location of the unit.
SPI Communications
This option provides an RS-485 communication port located
below the control panel on the front of the unit. The serial
communications will be multi-drop, half duplex, SPI 3.01
compatible and will allows the unit to communicate with another
piece of equipment that also has SPI protocol capabilities.
The following SPI communications are supported by the
microprocessor.
Process Temperature Set Point
High Temperature Deviation
Low Temperature Deviation
Process Status
To Process Temperature
The microprocessor is designed to accept inputs and deliver
outputs according to SPI protocol. There must also be a
computer or another piece of equipment that is equipped with
the SPI protocol in order for the communications from the unit
to be of any use. The programming of this computer and/or
other equipment is not the responsibility of the manufacturer.
Note: The manufacturer is not responsible for SPI protocol
programming beyond what is included in the
microprocessor controller.
When the SPI option is purchased, there is a second set of DIP
switches included on the back of the main control panel. This
set of DIP switches is labeled "COMM". All DIP switch
adjustments that follow are to be made on the COMM set. Do
not adjust any DIP switches on the CONFIG set.
Note: All DIP switch changes must be made with power
disconnected.
In order to activate the SPI protocol, DIP switch #8 must be set
to the "On" position. To deactivate the SPI communication, set
DIP switch #8 to the "Off" position.
If more than one piece of equipment is going to be on the same
communications network, the base address will have to be
changed so that each unit has a unique address. This is done
by changing one or more of the DIP switches to the "Off" posi-
tion. The base address is 32 decimal. Changing these switches
causes the following address change.
DIP Switch 1 OFF adds one to base address
DIP Switch 2 OFF adds two to base address
DIP Switch 3 OFF adds four to base address
DIP Switch 4 OFF adds eight to base address
DIP Switch 5 OFF adds sixteen to base address
The BAUD rate can be adjusted to the appropriate setting by
using the information found in Table 4.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
12

Table 4 - SPI Baud Rate Adjustment
BAUD Rate DIP Switch #6 DIP Switch #7
1200 ON ON
2400 Off ON
4800 ON Off
9600 Off Off
Operation
The temperature control unit cycles a heater and cooling valve
to maintain precise temperature control of the To Process water
temperature. Your unit may differ somewhat depending upon
the various options purchased; however, the overall function of
the unit is fundamental to all our temperature control units.
The pump continuously pumps water from the mixing tube
through the heater tube and out to the process equipment. The
water is pumped through the process equipment at a high flow
rate to ensure turbulent flow and efficient heat transfer. Once the
water exits the process equipment it returns to the mixing tube.
A thermocouple is mounted at the exit of the heater tube to
measure the temperature of the To Process water temperature.
This temperature is used by the microprocessor to determine if
temperature adjustment is required. If the water temperature is
below set point, the heater is energized. Conversely, the cooling
solenoid or modulating valve is opened whenever the water
temperature is above set point. Opening the cooling solenoid or
modulating valve allows some of the warm water from the
process water circuit to exit through the cooling water out line.
At the same time, cool water is injected into the process circuit
from the cooling water in line. The replacement of warm water
with cool water provides the cooling that is required. The
cooling valve is cycled by the microprocessor to allow precisely
controlled amounts of cooling water to enter the system.
A bypass line is provided to protect the pump from overloading
during those times with the process water circuit is shut off. This
prevents the pump from a deadheading situation and ensures
flow through the pump to keep the pump seal from overheating.
A pressure switch is provided to ensure that there is sufficient
inlet cooling water pressure to allow the unit to operate without
the possibility of steam flashing. A pressure relief valve is provid-
ed to vent the process loop if the operating pressure becomes
too high.
WARNING: Do not plug the opening in the pressure relief
valve under any circumstances as this is safety device that
must not be defeated.
A small pump seal flush line is provided to continuously flush
the pump seal of dirt and debris.
Construction
Pump Assembly
The centrifugal close-coupled pump features a specially
designed cast volute to eliminate fittings and provide easy
connection to the heater and/or mixing tubes. The pump volute
is constructed of cast iron. The ¾ through 2 HP pumps have
stainless steel impellers and pump shafts. The 3 HP through 7½
HP pumps have an iron impeller with a bronze wear ring in the
pump volute and carbon steel shafts with a bronze sleeve
covering. All pump sizes use a carbon Ni-Resist mechanical
pump seal. All pumps include a pump seal flush line.
Heater and Mixing Tube
Depending on the options and heater KW capacity of the unit,
there will be either two heater tubes or a heater tube and a
mixing tube. Both the heater and mixing tubes have been
designed to match up to the pump volute casting. The tubes are
constructed of cast iron and are designed to connect with the
pump volute with two flange seals. Units with 0 KW through 12
KW heating capacity will include a larger heater tube and a
smaller mixing tube. Units with heating capacities of 18 KW or
24 KW will have two larger heater tubes and no mixing tube.
Heater (not available on RB and RBD units)
The heaters are vertical flange mounted with Incoloy heater
element sheathing. All units will use one or more 9 KW or 12 KW
heater elements. The heaters are energized whenever the
microprocessor determines that heating is required.
Cooling Solenoid or Modulating Valve
The cooling solenoid or modulating valve meters the cooling
water required for proper cooling. The valve allows warm water
to leave the process loop while letting cooling water to enter the
loop. This valve is also used to vent the process circuit during
Vent and/or Purge sequences.
Pressure Switch
All units are equipped with a pressure switch to ensure
that the unit will not start until the inlet cooling water pressure
exceeds the pressure switch setting. This safety protects the
heater and pump seal from potential damage caused by
lack of water as well as ensuring that the system pressure
is above the vapor pressure of the water to prevent the
water from flashing to steam.
WARNING: If the Set Point temperature is 200°F (93°C) or
higher, the pressure switch should be set for a minimum of
25 PSI (1.75 Bar).
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
13

The pressure switch is mounted on the back of the vertical
panel that separates the electrical components from the
pump/heater section of the unit. The pressure switch can be
adjusted by using the screws located on top of the pressure
switch. When looking at the front of the pressure switch, the left-
hand screw adjusts the differential and the
right-hand screw adjusts the set point. The differential is factory
set for 10 PSI (.7 Bar) and should not need to be changed. The
set point can be adjusted by turning the right-hand screw until
the set point indicator points to the desired pressure.
Pressure Relief Valve
The pressure relief valve is a safety device designed to vent the
system if the operating pressure exceeds 150 PSI (10.5 Bar).
The pressure relief valve is located on one of the heater tubes.
The pressure in the process loop is the sum of the cooling water
supply pressure and the pressure added by the temperature
controller pump. It is possible that a high pressure cooling water
source and/or a low flow application will cause periodic
pressure relief valve venting during normal operation. If you are
experiencing this, please contact our Tech Service Department
for assistance and have the serial number and model number of
the unit as shown on the nameplate located on the back
of the unit.
Standard Options
The following options are the most common standard options
that we offer. In addition to the options shown we specialize in
offering unique options for our customers as are needed for
their particular application. If you are unable to find information
on an option of your unit please refer to the drawings that where
shipped with the unit or contact our Tech Service Department for
further information.
Stacking Bracket Kit (RA & RB series)
RA Series units can be stacked to minimize floor space require-
ments. A stacking bracket kit can be used to allow one unit to
be placed on top of another.
Mold Water Purge
The mold water purge option allows the mold circuit to be
purged of water by an external compressed air source. For ship-
ping purposes, the kit is shipped separately and will require field
installation. To perform a mold purge, follow the steps below in
sequence.
1. Press the Stop button. This leaves the unit on but puts the
microprocessor in an inactive mode. The Power button light
should still be illuminated.
2. Close the valve on the Cooling Water In line to shut off the
supply of water.
3. Connect the compressed air supply to the ¼" ball valve on
the back of the unit.
4. Open the ¼" ball valve to let the compressed air into the
mold circuit.
5. Press the Purge button on the control panel and hold it
down for 30 to 60 seconds or until the connecting water
lines stop shaking. When the water lines stop shaking you
can assume that the water has been purged.
6. Close the ¼" ball valve and disconnect the compressed air
line.
7. Close the valves on the Cooling Water Out, From Process
and To Process lines.
8. Open the pressure bleed line to pressurize the mold circuit.
After the pressure is relieved, disconnect the hoses from the
mold. The purge cycle is now complete.
Crash Cool
This option provides an additional solenoid valve piped in
parallel to the vent/cooling solenoid valve. When activated, more
cooling water is allowed into the system providing quicker
process cooling. Enabling the Crash Cool switch located on the
left side of the control panel activates this function. The Crash
Cool solenoid valve will remain open as long as the Crash Cool
switch is enabled.
Heat Exchanger (RA & RAD series)
The heat exchanger option uses a 4.0 ft² copper tube heat
exchanger to isolate the cooling water source from the process
water after the process is initially filled with water. The heat
exchanger is designed to fit within a heater tube. Due to space
restrictions in the cabinet, this option is only available on units
with 0 KW through 12 KW heating capacities. The process
circuit is filled separately by bypassing cooling water into the
process circuit. The cooling supply line will be used for
expansion during operation. This option also includes a
separate vent solenoid valve.
PREVENTIVE MAINTENANCE
Once the unit has been placed into service, the following
maintenance procedures should be adhered to as closely as
possible. The importance of a properly established preventive
maintenance program cannot be overemphasized. Taking the
time to follow these simple procedures will result in substantially
reduced downtime, reduced repair costs, and an extended
useful lifetime for the unit.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
14

The following is a list of suggested periodic maintenance.
Once a Week
1. Check to make sure that the To Process temperature is
maintained reasonably close to the Set Point temperature.
If the temperature stays more than 2°F (2°C) away from the
set point, there may be a problem with the unit If this is the
case, refer to the Troubleshooting Chart or contact our Tech
Service Department.
2. Check the pump discharge pressure. Investigate further if
the pressure starts to stray away from the normal operating
pressure.
3. Check the pump for leaks in the seal area. Replace pump
seal if necessary.
Repeat items 1 through 3 listed above and continue with the
following.
Once a Month
4. With the main disconnect shut off, check the condition of
electrical connections at all contactors, starters and con-
trols. Check for loose or frayed wires.
5. Check the incoming voltage to make sure it is within 10% of
the design voltage for the temperature control unit.
6. Check the amp draws to each leg of the pump motor and
heater to confirm that they are drawing the proper current.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
15

Troubleshooting
Problem Possible Cause Remedy
Alternating overheating Check connectors and increase size if necessary. If there
and overcooling or are a large number of hoses and/or they are long, try to
rapid cycling from heat Poor water flow short hose runs and use as large of a hose as possible to
to cool minimize water circuit pressure drop. If quick disconnects
with check valves have been used, remove the check
valves to reduce pressure drop through water circuit.
Poor connection or failure Check connection, replace if necessary.
of thermocouple
Failure of the microprocessor Replace controller.
Unable to heat properly Flush out the solenoid valve by adjusting the Set Point up
Solenoid valve is stuck in and down several times to open and close the solenoid
the open position valve. If this does not work, stop the unit and turn off the
electric power and water and take the solenoid valve apart
for cleaning or replacement.
Leaking connection and/or Check for leaks and replace any faulty valves.
the manual pressure relief
valve is in an open condition
Immersion heater is inoperative Have a qualified electrician check to see if the heater
and/or heater contactor are functioning correctly and
replace any defective components.
Microprocessor controller failure Replace controller..
Failure of thermocouple Replace thermocouple
Failure of heater Replace heater..
Failure of heater contactor Replace heater contactor
Unable to cool properly Cooling water supply is not Check to make sure the cooling water supply is of
sufficient sufficient temperature, volume and pressure for the unit.
Drain (cooling water return line) Check the drain (cooling water return line) to ensure there
is not sufficient is no restriction preventing cooling water flow to the drain
(cooling water return line).
Check the drain (cooling water return line) and see if you
Solenoid valve is inoperative can feel or hear a change in the flow as the solenoid valve
opens and closes. If you can not hear or feel the flow it is
likely the solenoid valve has failed. Replace solenoid valve
if necessary.
Plugged heat exchanger (only
on models with heat exchanger Clean or replace heat exchanger.
option)
High backpressure in the cooling Reduce backpressure. Call our Tech Service Department
water system for assistance on selecting a pressure-regulating valve.
Heater failure Unit not filled with water Fill unit with water.
Faulty heater Replace heater
Plugged heater tube/flow restriction Clear obstruction
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
16

Charts & Pump Curves
Table 5 –Single-Zone Unit Electrical Specifications
Heater(s) Pump Unit MCA2
Model FLA Each (3-phase, 60 Hz) FLA Each (3-phase, 60 Hz) Amps (3-phase, 60 Hz)
Qty KW Qty HP
208V 230V 460V 575V 208V 230V 460V 575V 208V 230V 460V 575V
RA0908 1 9 24.9 22.6 11.3 9.0 1 0.75 3.7 3.4 1.7 1.4 35.3 32.2 16.3 13.2
RA0910 1 9 24.9 22.6 11.3 9.0 1 1 3.7 3.4 1.7 1.4 35.3 32.2 16.3 13.2
RA0920 1 9 24.9 22.6 11.3 9.0 1 2 6.6 6.0 3.0 2.4 38.2 34.8 17.6 14.2
RA093A 1 9 24.9 22.6 11.3 9.0 1 3 9.9 9.0 4.5 3.6 41.5 37.8 19.1 15.4
RA093B 1 9 24.9 22.6 11.3 9.0 1 3 9.9 9.0 4.5 3.6 41.5 37.8 19.1 15.4
RA0950 1 9 24.9 22.6 11.3 9.0 1 5 16.5 15.0 7.5 6.0 48.1 43.8 22.1 17.8
RA0975 1 9 24.9 22.6 11.3 9.0 1 7.5 24.2 22.0 11.0 8.8 55.8 50.8 25.6 20.6
RA1208 1 12 33.0 30.0 15.0 12.0 1 0.75 3.7 3.4 1.7 1.4 45.5 41.4 21.0 16.9
RA1210 1 12 33.0 30.0 15.0 12.0 1 1 3.7 3.4 1.7 1.4 45.5 41.4 21.0 16.9
RA1220 1 12 33.0 30.0 15.0 12.0 1 2 6.6 6.0 3.0 2.4 48.4 44.0 22.3 17.9
RA123A 1 12 33.0 30.0 15.0 12.0 1 3 9.9 9.0 4.5 3.6 51.7 47.0 23.8 19.1
RA123B 1 12 33.0 30.0 15.0 12.0 1 3 9.9 9.0 4.5 3.6 51.7 47.0 23.8 19.1
RA1250 1 12 33.0 30.0 15.0 12.0 1 5 16.5 15.0 7.5 6.0 58.3 53.0 26.8 21.5
RA1275 1 12 33.0 30.0 15.0 12.0 1 7.5 24.2 22.0 11.0 8.8 66.0 60.0 30.3 24.3
RA1808 2 9 24.9 22.6 11.3 9.0 1 0.75 3.7 3.4 1.7 1.4 66.5 60.4 30.5 24.4
RA1810 2 9 24.9 22.6 11.3 9.0 1 1 3.7 3.4 1.7 1.4 66.5 60.4 30.5 24.4
RA1820 2 9 24.9 22.6 11.3 9.0 1 2 6.6 6.0 3.0 2.4 69.4 63.0 31.8 25.4
RA183A 2 9 24.9 22.6 11.3 9.0 1 3 9.9 9.0 4.5 3.6 72.7 66.0 33.3 26.6
RA183B 2 9 24.9 22.6 11.3 9.0 1 3 9.9 9.0 4.5 3.6 72.7 66.0 33.3 26.6
RA1850 2 9 24.9 22.6 11.3 9.0 1 5 16.5 15.0 7.5 6.0 79.3 72.0 36.3 29.0
RA1875 2 9 24.9 22.6 11.3 9.0 1 7.5 24.2 22.0 11.0 8.8 87.0 79.0 39.8 31.8
RA2408 2 9 24.9 22.6 11.3 9.0 1 0.75 3.7 3.4 1.7 1.4 66.5 60.4 30.5 24.4
RA2410 2 9 24.9 22.6 11.3 9.0 1 1 3.7 3.4 1.7 1.4 66.5 60.4 30.5 24.4
RA2420 2 9 24.9 22.6 11.3 9.0 1 2 6.6 6.0 3.0 2.4 69.4 63.0 31.8 25.4
RA243A 2 9 24.9 22.6 11.3 9.0 1 3 9.9 9.0 4.5 3.6 72.7 66.0 33.3 26.6
RA243B 2 9 24.9 22.6 11.3 9.0 1 3 9.9 9.0 4.5 3.6 72.7 66.0 33.3 26.6
RA2450 2 9 24.9 22.6 11.3 9.0 1 5 16.5 15.0 7.5 6.0 79.3 72.0 36.3 29.0
RA2475 2 9 24.9 22.6 11.3 9.0 1 7.5 24.2 22.0 11.0 8.8 87.0 79.0 39.8 31.8
RB08 0 0 0.0 0.0 0.0 0.0 1 0.75 3.7 3.4 1.7 1.4 4.2 3.9 2.2 1.9
RB10 0 0 0.0 0.0 0.0 0.0 1 1 3.7 3.4 1.7 1.4 4.2 3.9 2.2 1.9
RB20 0 0 0.0 0.0 0.0 0.0 1 2 6.6 6.0 3.0 2.4 7.1 6.5 3.5 2.9
RB3A 0 0 0.0 0.0 0.0 0.0 1 3 9.9 9.0 4.5 3.6 10.4 9.5 5.0 4.1
RB3B 0 0 0.0 0.0 0.0 0.0 1 3 9.9 9.0 4.5 3.6 10.4 9.5 5.0 4.1
RB50 0 0 0.0 0.0 0.0 0.0 1 5 16.5 15.0 7.5 6.0 17.0 15.5 8.0 6.5
RB75 0 0 0.0 0.0 0.0 0.0 1 7.5 24.2 22.0 11.0 8.8 24.7 22.5 11.5 9.3
Notes:
1. Voltage utilization range is: 208 (187 to 254), 230 (187 to 254), 460 (414 to 508), and 575 (518 to 635).
2. Unit MCA (Minimum Circuit Ampacity) is based upon 125% of the largest FLA plus 100% of remaining components FLA.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
17

© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
18
Table 6 – Dual-Zone Unit Electrical Specifications
Heater(s) Pump Unit MCA2
Model FLA Each (3-phase, 60 Hz) FLA Each (3-phase, 60 Hz) Amps (3-phase, 60 Hz)
Qty KW Qty HP
208V 230V 460V 575V 208V 230V 460V 575V 208V 230V 460V 575V
RAD0908 2 9 24.9 22.6 11.3 9.0 2 0.75 3.7 3.4 1.7 1.4 70.2 63.8 32.2 25.8
RAD0910 2 9 24.9 22.6 11.3 9.0 2 1 3.7 3.4 1.7 1.4 70.2 63.8 32.2 25.8
RAD0920 2 9 24.9 22.6 11.3 9.0 2 2 6.6 6.0 3.0 2.4 76.0 69.0 34.8 27.8
RAD093A 2 9 24.9 22.6 11.3 9.0 2 3 9.9 9.0 4.5 3.6 82.6 75.0 37.8 30.2
RAD093B 2 9 24.9 22.6 11.3 9.0 2 3 9.9 9.0 4.5 3.6 82.6 75.0 37.8 30.2
RAD0950 2 9 24.9 22.6 11.3 9.0 2 5 16.5 15.0 7.5 6.0 95.8 87.0 43.8 35.0
RAD0975 2 9 24.9 22.6 11.3 9.0 2 7.5 24.2 22.0 11.0 8.8 111.2 101.0 50.8 40.6
RAD1208 2 12 33.0 30.0 15.0 12.0 2 0.75 3.7 3.4 1.7 1.4 90.4 82.3 41.4 33.3
RAD1210 2 12 33.0 30.0 15.0 12.0 2 1 3.7 3.4 1.7 1.4 90.4 82.3 41.4 33.3
RAD1220 2 12 33.0 30.0 15.0 12.0 2 2 6.6 6.0 3.0 2.4 96.2 87.5 44.0 35.3
RAD123A 2 12 33.0 30.0 15.0 12.0 2 3 9.9 9.0 4.5 3.6 102.8 93.5 47.0 37.7
RAD123B 2 12 33.0 30.0 15.0 12.0 2 3 9.9 9.0 4.5 3.6 102.8 93.5 47.0 37.7
RAD1250 2 12 33.0 30.0 15.0 12.0 2 5 16.5 15.0 7.5 6.0 116.0 105.5 53.0 42.5
RAD1275 2 12 33.0 30.0 15.0 12.0 2 7.5 24.2 22.0 11.0 8.8 131.4 119.5 60.0 48.1
RAD1808 4 18 24.9 22.6 11.3 9.0 2 0.75 3.7 3.4 1.7 1.4 132.4 120.3 60.4 48.3
RAD1810 4 9 24.9 22.6 11.3 9.0 2 1 3.7 3.4 1.7 1.4 132.4 120.3 60.4 48.3
RAD1820 4 9 24.9 22.6 11.3 9.0 2 2 6.6 6.0 3.0 2.4 138.2 125.5 63.0 50.3
RAD183A 4 9 24.9 22.6 11.3 9.0 2 3 9.9 9.0 4.5 3.6 144.8 131.5 66.0 52.7
RAD183B 4 9 24.9 22.6 11.3 9.0 2 3 9.9 9.0 4.5 3.6 144.8 131.5 66.0 52.7
RAD1850 4 9 24.9 22.6 11.3 9.0 2 5 16.5 15.0 7.5 6.0 158.0 143.5 72.0 57.5
RAD1875 4 9 24.9 22.6 11.3 9.0 2 7.5 24.2 22.0 11.0 8.8 173.4 157.5 79.0 63.1
RAD2408 4 9 24.9 22.6 11.3 9.0 2 0.75 3.7 3.4 1.7 1.4 132.4 120.3 60.4 48.3
RAD2410 4 9 24.9 22.6 11.3 9.0 2 1 3.7 3.4 1.7 1.4 132.4 120.3 60.4 48.3
RAD2420 4 9 24.9 22.6 11.3 9.0 2 2 6.6 6.0 3.0 2.4 138.2 125.5 63.0 50.3
RAD243A 4 9 24.9 22.6 11.3 9.0 2 3 9.9 9.0 4.5 3.6 144.8 131.5 66.0 52.7
RAD243B 4 9 24.9 22.6 11.3 9.0 2 3 9.9 9.0 4.5 3.6 144.8 131.5 66.0 52.7
RAD2450 4 9 24.9 22.6 11.3 9.0 2 5 16.5 15.0 7.5 6.0 158.0 143.5 72.0 57.5
RAD2475 4 9 24.9 22.6 11.3 9.0 2 7.5 24.2 22.0 11.0 8.8 173.4 157.5 79.0 63.1
RBD08 0 0 0.0 0.0 0.0 0.0 2 0.75 3.7 3.4 1.7 1.4 7.9 7.3 3.9 3.3
RBD10 0 0 0.0 0.0 0.0 0.0 2 1 3.7 3.4 1.7 1.4 7.9 7.3 3.9 3.3
RBD20 0 0 0.0 0.0 0.0 0.0 2 2 6.6 6.0 3.0 2.4 13.7 12.5 6.5 5.3
RBD3A 0 0 0.0 0.0 0.0 0.0 2 3 9.9 9.0 4.5 3.6 20.3 18.5 9.5 7.7
RBD3B 0 0 0.0 0.0 0.0 0.0 2 3 9.9 9.0 4.5 3.6 20.3 18.5 9.5 7.7
RBD50 0 0 0.0 0.0 0.0 0.0 2 5 16.5 15.0 7.5 6.0 33.5 30.5 15.5 12.5
RBD75 0 0 0.0 0.0 0.0 0.0 2 7.5 24.2 22.0 11.0 8.8 48.9 44.5 22.5 18.1
Notes:
1. Voltage utilization range is: 208 (187 to 254), 230 (187 to 254), 460 (414 to 508), and 575 (518 to 635).
2. Unit MCA (Minimum Circuit Ampacity) is based upon 125% of the largest FLA plus 100% of remaining components FLA.

© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
19
Figure 1 - RAD, RB, RBD Series Pump Curves
Drawings
We have prepared a custom set of drawings for your unit and placed them inside the control panel prior to shipment. Please refer to
these drawings when troubleshooting, servicing and installing the unit. If you cannot find these drawings or wish to have additional
copies, please contact our Tech Service Department and reference the serial number of your unit.

Warranty
IMS warrants its equipment to be free from defects in material and workmanship when used under recommended
operating conditions.
IMS' obligation is limited to repair or replacement (not adjustment or maintenance), F.O.B. the factory of any parts
supplied by IMS within the following time periods from the date of shipment to the original purchaser: 2 years entire
unit, 5 years microprocessor controller, Lifetime castings (tubes and pump volute) and pump seals (standard seal only).
A 2-year labor policy and the lifetime seal warranty are provided on all units except units with special electrics,
non-standard valves, heat exchangers, mold purge, crash cool, and/or remote panels. Labor can either be performed at
manufacturer with the unit shipped prepaid or a pre-established credit will be given for work performed at the
customer's plant.
IMS is not responsible for any sales, use, excise or other applicable taxes connected to the replacement of parts under
this warranty. This warranty will be voided when, in the manufacturers opinion, the equipment and/or system has been
subject to misuse, negligence or operation in excess of recommended limits including freezing, or which has been
altered, and/or repaired without express factory authorization. If equipment is installed in hostile environments, unless
such conditions were specified at the time of purchase; or the serial number has been removed or defaced, this
warranty shall not apply. This warranty is not transferable.
Under no circumstances shall IMS be liable for loss of prospective or speculative profits, or special, indirect, incidental
or consequential damages.
All warranty service must be authorized by IMS prior to work being performed. All defective parts become the property
of IMS and must be returned as advised by IMS.
IMS neither assumes nor authorizes any person to assume for it any liability not expressed in this warranty. There is an
implied warranty of merchantability and of fitness for particular purpose; all other implied warranties, and any liability not
based upon contract are hereby disclaimed and excluded by this warranty. This warranty is part of our standard
conditions and terms of sale of IMS.
© Copyright 2010 IMS Company. All rights reserved. An ISO 9001:2008 Registered Quality Company
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