B&D BDCB-RC User manual

INSTALLATION MANUAL
LET US MAKE YOUR HYDRONICS SYSTEM EASIER
WWW.BDMFGINC.COM
BY B&D MFG., INC.

TABLE OF CONTENTS
General Instructions 1
Warranty Information 1
Terms of Limited Warranty Information 2
Safety Considerations 2
Installation Precautions 2
Control Panel Dimensions & Information 3
Control Components Information 3
Temperature Controller Information 4
Rotational Board Information 4
Electrical Wiring Information 5
Rotational Control Panel Wiring Schematic 5
Mounting the Rotational Control Panel 6
Immersion Well Installation 7
Wiring Thermistor to the Rotational Board 8
Wiring Demand Signal 8
Wiring Heating / Cooling Equipment to Rotational Panel 9
Setting-Up Rotational Control and Staging Set Points 9
Temperature Controller Programming 10
Functionality of Rotational Controller 11
Rotational Control Connected to HSS Buffer Tank 12
Rotational Control Reset Function 13
Notes 13
Company Contact Information Back Page
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com

1
BY B&D MFG., INC.
GENERAL
B&D Mfg., Inc. assumes no responsibility for equipment installed in violation of any code requirement. These
instructions give information relative to the installation of the Rotational Control (BDCB-RC4HP) only. For other related
equipment refer to the proper instructions.
Altering the product or replacing parts with non-authorized factory parts voids all warranty or implied warranty and
may result in adverse operational performance and/or a possible hazardous safety condition to service personnel and
occupants. Company employees and/or contractors are not authorized to waive this warning.
Material in this shipment has been inspected at the factory and released to the transport agency in good condition.
When received, a visual inspection of all BDCB-RC4HP Rotational Control should be made immediately. Any evidence of
apparent damage should be noted on the delivery receipt and the material inspected in the presence of the carrier’s
representative. If damage is found, a claim should be filed against the carrier immediately.
B&D Mfg., Inc. reserves the right to discontinue, make changes to, and add improvements upon its products at any
time without public notice or obligation. The descriptions and specifications contained in this manual were in effect at
printing. Some illustrations and info in the installation guide may not be applicable to your unit.
NOTE: Read the entire instruction manual before starting the installation.
WARRANTY
B&D Mfg., Inc. warrants for a period of three (3) years from date of purchase that all Rotational Control (BDCB-RC4HP)
circuit boards are free from defects in materials and workmanship. B&D Mfg., Inc. warrants for a period of one (1) year
from date of purchase that all other parts are free from defects in materials and workmanship. No allowance for labor or
property damage is implied.
You must contact the Warranty Department at B&D Mfg., Inc. for a Return Authorization Form. The alleged defective
product must be returned to B&D Mfg., Inc., for inspection via prepaid freight. Defective parts will be repaired or
replaced at the manufacturer’s discretion. No allowance for labor or property damage is implied.
This warranty applies only to the B&D Mfg., Inc. and does not include any other products or materials furnished by the
installer. This warranty does not cover defects caused by adhere to local building codes and following good industry
standards. The manufacturer does NOT WARRANT equipment subjected to abuse. Any abuse can void warranties. All
warranty products must be returned within 30 days of receipt of replacement to receive credit.
It is expressly agreed that this shall be the sole and exclusive remedy of the buyer. Under no circumstances shall seller
be liable for any costs, loss expenses damages, special damages, incidental damages of manufacture, sale, use or repair
of the product whether based upon warranty, contract, negligence or strict liability. In no event will liability exceed the
purchase price of the product.
Scranton, IA 51462
Phone [phone]
www.bdmfginc.com

TERMS OF LIMITED WARRANTY
Limited Warranty is only applicable to products installed for use in HVAC systems using clean potable water. Complete
unit replacements are not covered, defective parts will be repaired and/or replaced at the Manufacturer’s discretion.
Limited Warranty shall not apply if serial number or data plates have been removed or altered. Warranty will be null and
void. Limited Warranty shall not apply if products are not installed and maintained according to instructions in the
product installation manual. Replacement and/or factory repaired parts are warranted only for the remainder of the
original warranty period.
B&D Mfg., Inc. does not warrant products that have been modified from original design. Any product returned with
design deviations will null and void any and all warranties. B&D Mfg., Inc. is not responsible for any labor, shipping and
transportation costs. In no event will liability exceed the purchase price of the product.
SAFETY CONSIDERATIONS
Installing and servicing of the Rotational Control (BDCB-RC4HP) can be hazardous due to electrical components. Only
trained, qualified personnel should install, start-up and service this equipment.
When working on the equipment, observe precautions in the literature, tags, stickers and labels attached to the
equipment and to any other safety precautions that apply.
When the Rotational Control (BDCB-RC4HP) is operating, some components you should not touch. Personal injury can
result from touching these items with any object.
All electrical and service access panels must be returned and secured in their proper place. Clear surrounding area of all
tools, equipment and debris. Check the entire unit to ensure its cleanliness.
Follow all safety codes. Wear safety glasses and work gloves.
Scranton, IA 51462
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2
INSTALLATION PRECAUTIONS
Installation of the Rotational Control (BDCB-RC4HP) should only be performed by a licensed contractor to ensure
proper installation and the safety of the installer. The following are some precautions to be followed for typical
installations.
• Always use proper tools and equipment
• No wiring or other work should be attempted without first ensuring that the Rotational Controls Package
(BDCB-RC4HP) is completely disconnected from the power source and locked out. Always verify that a good
ground connection exists prior to energizing any power sources.
• Always review the nameplate on each unit for proper voltage and control configurations. This information is
determined from the components and wiring of the unit.

3
12” W x 15” L x 3” D
B&D
SERIAL NUMBER
INFORMATION
PANEL LOCK
CONTROL PANEL DIMENSIONS
B&D TEMPERATURE CONTROL
(H2-2TC)
B&D ROTATIONAL BOARD
(BDCB-RC)
CONTROL PANEL COMPONENTS INFORMATION
NOTE: All BDCB-RC4HP control panels come prewired with labels and a wiring decal mounted on the inside
of the control panel door.
Scranton, IA 51462
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Scranton, IA 51462
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4
BDCB-RC4HP CONTROL BOARD INFORMATION
ITEM DESCRIPTION
1Thermistor Location
2Cooling LED
3Heating LED
4Up Button
5Down Button
6Mode Button
7Power Indicator LED
8LCD Screen
924V Power
10 TX Sensor Signal
11 Relay Contact (NC,C)
B&D TEMPERATURE BOARD (H2-2TC)
B&D ROTATIONAL BOARD (BDCB-RC)
ITEM DESCRIPTION
1Power Light
2Cooling Light
324VAC Out Terminal
4H2TC-C Terminal
5H2TC-B Terminal
6H2TC-A Terminal
7Demand Signal Contacts
ITEM DESCRIPTION
8Device Number Pin
92nd Stage Pin Adjustment
10 2nd Stage Light Equip. #1
11 Equip. #1 Dry Contacts
12 1st Stage Light Equip. #1
13 2nd Stage Light Equip. #2
14 Equip.#2 Dry Contacts
ITEM DESCRIPTION
15 1st Stage Light Equip. #2
16 2nd Stage Light Equip #3
17 Equip. #3 Dry Contacts
18 1st Stage Light Equip. #3
19 2nd Stage Light Equip #4
20 Equip. #4 Dry Contacts
21 1st Stage Light Equip. #4
22 24VAC Power In Terminal
1
67543
10
28
9
11
12
13
14
15
16
17
18
19
20
21
22

ELECTRICAL
The Rotational Control (BDCB-RC4HP) requires 24VAC 500Ma minimum input. The primary wiring must be in
accordance with Local Codes and that of the National Electric Code. Low voltage wiring must be isolated from primary
voltage lines and connections.
All units are provided with wiring diagrams and name plate data to provide information required for necessary field
wiring. Knockouts are provided on the cabinet for connection of power supply. Follow the color-coded schematic of low
voltage wiring that is located inside the BDCB-RC4HP Rotational Control Panel.
Scranton, IA 51462
Phone [phone]
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5
24V AC
in +/-
XY2 XY1
B & D TEMPERATURE CONTROLLER
RELAY
TEMP GND
C3
C4
R5
PGM
GND24 TX
Q1
VR1 D1 C1
R3
R2 R4
R11
R12 ZR1
R1
RELAY
C
NO NC C
NO NC
D2
Q2
R10R9
Q3
R8R7
B & D TEMPERATURE CONTROLLER
RELAY
TEMP GND
C3
C4
R5
PGM
GND24 TX
Q1
VR1 D1 C1
R3
R2 R4
R11
R12 ZR1
R1
RELAY
C
NO NC C
NO NC
D2
Q2
R10R9
Q3
R8R7
B & D TEMPERATURE CONTROLLER
RELAY
TEMP GND
C3
C4
R5
PGM
GND24 TX
Q1
VR1 D1 C1
R3
R2 R4
R11
R12 ZR1
R1
RELAY
C
NO NC C
NO NC
D2
Q2
R10R9
Q3
R8R7
H2TC-AH2TC-BH2TC-C
YELLOW GREEN GRAY YELLOW GREEN GRAY YELLOW GREEN GRAY
WHITE GRAY
BLACK
WHITE GRAY
BLACK
24VAC-XR
XO
XY2 XY1
24VAC-XR
XO
XY2 XY1
24VAC-XR
XO
XY2 XY1
24VAC-XR
XO
XO XR XY
Y1 Y2 XO XR
PUMP 4
Y1 Y2 XO XR
PUMP 3
Y1 Y2 XO XR
PUMP 2
Y1 Y2 XO XR
PUMP 1
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
CIT RELAY
10A/277VAC
COIL: 24VDC
24VAC IN
500ma min
24VAC Out
H2TC-A B3-6CR H2TC-B H2TC-C
WHITE GRAY
BLACK
Max Pumps
2nd Stage
Delay (mins)
WARNING: Field installation must be wired in strict accordance with the wiring diagram that is
supplied with the unit. Failure to do so could result in damage to components and will void all
warranties.
24V EQUIPMENT TERMINAL CONTACTS
EQUIPMENT #1
EQUIPMENT #2
EQUIPMENT #3
EQUIPMENT #4
POWER TO
ROTATIONAL BOARD
TERMINAL CONTACTS
DEMAND SIGNAL
TERMINAL CONTACTS
EXAMPLE:
HSS BUFFER MAIN BOARD
OTHER WATER DEVICES
BDCB–RC4HP CONTROL PANEL WIRING SCHEMATIC
WARNING: These panels are designed for use with 24VAC. Do not use other voltages! Use caution to
avoid electric shock or equipment damage. All work should be performed to local and national codes
and ordinances.

Scranton, IA 51462
Phone [phone]
www.bdmfginc.com
6
MOUNTING THE CONTROL PANEL
Select a mounting location for the Rotational Control Panel (BDCB-RC4HP) that meets the following criteria:
• Close to the water heating equipment
• Dry, relatively clean area
• Easily accessible for service personal
• Facilitates wiring of the unit
• Mounting surface must be secure
Open the cover of the unit by turning the slot on the front of the cover one full turn counterclockwise. Position the unit
on the mounting surface so that the wiring can be accomplished with minimal amount of difficulty. Mark the location of
the mounting holes on the mounting surface. Remove the unit from the mounting area and drill the appropriate size pilot
hole for the mounting screws.
Mount the unit by installing a screw through each of the three holes provided in the enclosure. Be sure the unit is
securely fastened to the mounting surface. Close the cover on the unit after all wiring is complete.
MOUNTING
HOLES
MOUNTING
HOLES
WARNING: Do not drill through the enclosure into the mounting surface. Doing so may cause chips to
get into the electrical connections and damage the unit.

IMMERSION WELL INSTALLATION
If your using the Rotational Control (BDCB-RC4HP) with the B&D HSS Buffer Tank Controls, you will need to insert the
thermistor probe that is provided with the Rotational Control Panel into the HSS Buffer Tank immersion well assembly or
attach the Rotational Control Panels immersion well probe to a location in the system to get a temperature reading.
See below for immersion well location on the HSS Buffer Tank.
B&D HSS BUFFER TANK
If you chose to use the same location as the one from the HSS Buffer Tank Control Box, this will give the temperature
boards located in the Rotational Control Panel the same temperature reading as the temperature controller (H2-2TC) in
the HSS Buffer Tank Control Box.
If you chose to use a location other than the HSS Buffer Tank immersion well, it is recommended to use an immersion
well assembly to give the best results for a temperature reading. Please see illustration below to help guide you to a
proper installation to adding the Rotational Control Panel immersion well probe into your designated location.
NOTE: Prior to inserting the sensor, a small amount of thermal paste should be injected into the end of the
well. The sensor body should also get coated with thermal paste as in the figure above.
The objective is to completely fill the gap between the sensor body and inside surface of the well with thermal paste.
Doing so improves conductivity and reduces the time lag between changes in water temperature and when that change
is detected by the sensor.
Scranton, IA 51462
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7
HSS
BUFFER TANK
IMMERSION WELL
LOCATION

WIRING THERMISTOR TO THE BOARD
The sensor is connected directly to the B&D Temperature Board (H2-2TC) inside the Rotational Control Box (BDCB-RC4HP).
Scranton, IA 51462
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8
WIRING DEMAND SIGNAL
The Rotational Control Panel (BDCB-RC4HP) gets a request for demand for hot/cold water from a controls dry contact
through the XY, XO, XR terminals in the upper right corner of the BDCB-RC board. See image below for terminal
contact location.
The dry contact closes on demand control sending the power it receives from the rotational control XR back to the
rotational controls XY terminal. This will start a water device. The water device that is started depends on where it left
off in its rotational control program. (Device that is on has a light designating that it is actively running.) This then starts
the rotational controls functionality.
Only one temperature thermistor sensor is needed in the Rotational Control Box (BDCB-RC4HP) to sense temperature for
all the displays. The temperature is distributed to the other temperature controllers via a signal generation cable wired
into the TX terminal located in the lower left hand terminal on the temperature controller.
WARNING: The TX terminal is a communication port only and must only be connected to another TX
communication terminal. If power is applied to this terminal the internal circuitry of the B&D
Temperature Board (H2-2TC) will be damaged, in which case the warranty for this product will be
voided.
NOTE: XY,XO & XR Terminals are powered contacts. These contacts send out 5vDC. Has to be wired to a dry
set of contacts.
THERMISTOR
CONNECTION
B&D TEMPERATURE BOARD (H2-2TC)
B&D ROTATIONAL BOARD (BDCB-RC)
DEMAND SIGNAL
TERMINAL CONTACTS
XY,XO,XR
TERMINALS
EQUIPMENT EXAMPLE:
HSS BUFFER TANK MAIN BOARD
OTHER WATER DEVICES
WARNING: Be sure the power to the Rotational Control Panel (BDCB-RC4HP) is turned off at the
supply source before continuing with the steps below. Serious injury or death could occur if this
step is not followed.
The sensor is wired into the temperature controller in the upper left hand side of the controller on the two terminal
connection labeled GND and TEMP. The sensor wires are not terminal specific and can be wired into either terminal as
long as both wires are wired into a separate terminal. The Rotational Control Panel comes with a six foot long 33kΩ
sensor pre-wired into the temperature controller. If the sensor wire needs to be extended use a minimum 22 AWG wire
to extend it up to 25 foot.
The temperature sensor can be connected to any of the 3 B&D Temperature Controllers (H2-2TC) to receive a
temperature reading

WIRING HEATING/COOLING WATER EQUIPMENT
Wire each of the water devices 24V contact to the XR terminal on the Rotational Control Board (BDCB-RC) in the lower
portion of the board. Then wire the XY terminal on the Rotational Board (BDCB-RC) to the contact on the water devices
that will receive the 24V signal back to start the unit. For a unit that has 2nd stage an additional wire needs be wired in
the Y2 terminal. These contacts are made any time the system has a need for heat/cool. If the water device is being
used to also chill water wire the XO terminal into the water devices contact for their reversing valve.
Scranton, IA 51462
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EQUIPMENT #1
EQUIPMENT #2
EQUIPMENT #3
EQUIPMENT #4
NOTE: The equipment terminal contacts are 24V dry contacts.
Y1,Y2,XO,XR
TERMINALS
24V EQUIPMENT TERMINAL CONTACTS
B&D ROTATIONAL BOARD (BDCB-RC)
Setting-Up Rotational Control and Staging Set Points
User places jumper on pins designated for the number of water devices they are wiring to the control board
NOTE: User can choose between 2,3 or 4 devices.
User places jumper on pins designated for the delay required for all second stages of devices.
NOTE: User can choose between 2, 4 or 6 Minute Delay.
Number of Devices
Pin Adjustment
2nd Stage Delay
Pin Adjustment
WARNING: Make sure you unplug the power to the Rotational Control Panel (BDCB-RC4HP) before
moving the jumper pins to avoid causing a short.
B&D ROTATIONAL BOARD (BDCB-RC)
Y1,Y2,XO,XR
TERMINALS
Y1,Y2,XO,XR
TERMINALS
Y1,Y2,XO,XR
TERMINALS
WARNING: Field installation must be wired in strict accordance with the wiring diagram that is supplied
with the unit. Failure to do so could result in damage to components and will void all warranties.

NOTE: The BDCB Pump Control Panel temperature controllers are shipped from the factory already
programmed with heating and cooling set points.
NOTE: For the temperature set points for this unit, please refer to your wiring schematic that is mounted
inside the electrical box. The set points are displayed under the Presets Chart.
1. Power needs to be applied to the BDCB-RC4HP Rotational Load Control Panel, the Temperature controller (s) display
will turn on.
2. Press and hold the MODE button for 5 seconds and it will enter programming mode. After 2 seconds the temperature
scale will show on the LCD display. By pressing the up or down button allows you to change from “FAR” or “CEN”.
3. Press mode button once and enter the control type. The display will show “TY1”. After 2 seconds the LCD will show
“HEA” or “COL”, by pressing the up and down button allows the setting change from “HEA” or “COL”. The setting must be
“COL”.
4. Press the mode button again to change to temperature differential “SP1”. After 2 seconds the LCD will display a
number, by pressing up and down button allows the setting change the number setting.
5. Press the mode again and the LCD displays “HS1”, after 2 seconds the LCD will show current setting. The hysteria
time, would be a built in time delay. By pressing the up and down button to set the desired time. Change to zero to
disable.
6. Press mode button once and enter the control type. The display will show “TY2”. After 2 seconds the LCD will show
“HEA” or “COL”, by pressing the up and down button allows the setting change from “HEA” or “COL”. The setting must be
“HEA”.
7. Press the mode button again to change to temperature differential “SP2”. After 2 seconds the LCD will display a
number, by pressing up and down button allows the setting change the number setting.
8. Press the mode again and the LCD displays “HS2”, after 2 seconds the LCD will show current setting. The hysteria
time, would be a built in time delay. By pressing the up and down button to set the desired time. Change to zero to
disable.
Each controller includes a locking function that will prevent accidental reprogramming. The soft lock is enabled and
disabled by pressing both the UP and DOWN buttons for five seconds. The LCD will show “LOC” to indicate the controller
is locked. The LCD will show “UNL” to indicate that the controller is now unlocked. The soft lock will retain its setting
through power interruptions.
There's also a factory restore option to restore the controllers to their original set points before they are programmed in
the factory. Hold in the mode, up and down buttons simultaneously until the screen displays FAC.
(Approximately 20 seconds)
NOTE: If you use the factory restore option, please note that the temperature set points will need to reset to
your desired setting. Each system may have a different amount of temperature controllers. If you reset
more than one controller, your temperature staging will be incorrect as the reset controllers will have the
same set points.
Scranton, IA 51462
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10
TEMPERATURE CONTROLLER PROGRAMMING
B&D TEMPERATURE BOARD (H2-2TC)

2nd Stage: Jumper on pins designated for delay required for all second stages of devices. This stage is activated after
first stage of a device is actively running and timer has been satisfied. (Light designating active for that device.)
Cooling: “O” call from the Equipment connected sends signal to Rotational Board (BDCB-RC) XO terminal. The Cooling
light will be lit designating it is active for all devices. See page 4 for location of the Cooling Light on the Rotational
Board (BDCB-RC)
Scranton, IA 51462
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11
FUNCTIONALITY OF ROTATIONAL CONTROLLER
Once the Rotational Board (BDCB-RC) is powered on, the green power light in the upper left hand side of the board
should be lit up. See page 4 for the location of the rotational board power light.
As previously mentioned, the demand signal from the equipment connected to Rotational Board (BDCB-RC) requests
demand for hot/cold water based on its current controls method. The demand signal terminal closes sending the power it
receives from the Rotational Board (BDCB-RC) XR terminal back to the Rotational Board (BDCB-RC) XY terminal.
This will start a water device. The water device that is started depends on where it left off in its rotational control
program. The device that is on has a light designating that it is actively running. This then starts the Rotational Controls
functionality.
The control will then rotate which water device comes on first on a demand call. It does this by rotating to the next
device in the connection series when demand goes away. Ex: 1,2,3,4; 2,3,4,1; 3,4,1,2; 4,1,2,3.
Once a device has started two things happen:
1. Timer begins for the second stage of that device.
2. Built in timer for next water device to operate begins. This is a two minute timer. Each time before any device,
except the original device; can operate this timer is activated.
Once this timer is satisfied it then sends power to the next temperature controller and based on its set points can turn on
the next water device. The green and red LED on the temperature controller to the right of the LCD screen must be lit for
the next water device to be activated. This happens until all units are running or demand is meet.
XY,XO,XR
TERMINALS
B&D ROTATIONAL BOARD (BDCB-RC)
See below for the 1st and 2nd stage lighting identification of the Rotational Board (BDCB-RC)
1st
STAGE
LIGHT
2nd
STAGE
LIGHT
EQUIPMENT
#4
1st
STAGE
LIGHT
2nd
STAGE
LIGHT
EQUIPMENT
#3
1st
STAGE
LIGHT
2nd
STAGE
LIGHT
EQUIPMENT
#2
1st
STAGE
LIGHT
2nd
STAGE
LIGHT
EQUIPMENT
#1

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ROTATIONAL CONTROL CONNECTED TO HSS BUFFER TANK
If your using the Rotational Control Panel (BDCB-RC4HP) with the B&D HSS Buffer Tank Controls, the main HSS Control
Box Board (B3-6CR) XY,XR,XY terminals will need to communicate to the Rotational Control Board (BDCB-RC) demand
signal contacts.
See below for the location of the 3 wires that need to be run from the main HSS Control Box Board (B3-6CR)
XY,XR,XY terminals to the Rotational Control Board (BDCB-RC) demand signal contacts.
The main HSS Control Box Board (B3-6CR) requests demand for hot/cold water based on its current controls method. XY
terminal closes on HSS B3-6CR Main Board sending the power it receives from the Rotational Board (BDCB-RC) XR
terminal back to the Rotational Board (BDCB-RC) XY terminal.
This will start a water device. The water device that is started depends on where it left off in its rotational control
program. The device that is on has a light designating that it is actively running. This then starts the Rotational Controls
functionality.
See previous page 10 for the 1st and 2nd stage lighting identification of the Rotational Board (BDCB-RC)
R9
RLY10
TRANS
C
R3
RLY1
15-A
MAIN
MAIN FUSE
WHT
LINE LINE
FUSED
110V
BLK
J1
COM
COM
D6 D4 D5
LED2
RLY3
C2
D2 D3 D1
C1
LED1
R1
RLY2
R2
FU2
PUMP
J3
L 2 N
FU1
PUMP
J2
L 1 N
FUSE PUMP 1 FUSE PUMP 2
LED5
R5
D12 D10 D11
D9
RLY5
C3 R4
LED4
C4
FU4
PUMP
J5
L 4 N
FU3
FUSE PUMP 3 FUSE PUMP 4
D7
LED3
D8
PUMP
L 3 N
J4
RLY4
D19 D20 D18 D16 D17
RLY7
C6
FU6
PUMP
HOHO
H/C
HOHO
H/CH/C
HOHO
J7
L 6 N
FUSE PUMP 6
D15 D13 D14
C5
RLY6
FU5
PUMP
J6
L 5 N
FUSE PUMP 5
R6
LED6
12F
R12
Q1
48
R8
COOL
96
R7
HEAT
TEST
LED7
623
LED8
RLY8
RLY9
J9
C CTCXR TCXY XO
J8
OCR H
J11
J10
R
24V
EXPAND
OC Y RO RYC
J13
T2
J12
T1
CO RC YO R
T4
J15
YC
T3
J14
O RC YO RY
H/C
J17
T6
H/CH/CH/C
T5
J16
HOHOHO
B&D MFG Model B3-6CR
Scranton Iowa 51462
R12
C11
Q2
C10
R11
R10
C9
D22
D21
D21
HO
H/CH/CH/C
HO
B&D HSS BUFFER TANK MAIN BOARD(B3-6CR)
XY,XO,XR
24V DRY CONTACT
TERMINALS
DEMAND SIGNAL
TERMINAL CONTACTS
XY,XO,XR
See below for the Rotational Board (BDCB-RC) demand signal contacts as mentioned above.
B&D ROTATIONAL BOARD (BDCB-RC)

ROTATIONAL CONTROL RESET FUNCTION
To reset the rotational controller to its factory setting begin by ensuring the controller is powered off. Place the jumper
for “Max Pumps” onto 1 pump, then power on. Simulate a call, then power off. Relocate the jumper onto the proper
number of pumps for the system. Turn the controller back on. The next time a call is received, Pump 1 will be the first to
power on.
See below for the location of the jumper pins.
Number of Devices
Pin Adjustment
B&D ROTATIONAL BOARD (BDCB-RC)
NOTES
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13

B & D MAIN WAREHOUSE
901 9TH STREET
SCRANTON, IA 51462
Ph: 1-866-646-6724 or 712-652-3424
Fax: [phone] or 712-652-3388
WWW.BDMFGINC.COM
“B & D Mfg. Inc.’s mission is to bring geothermal innovation to the
forefront of green energy. Our goal is to utilize non-pressurized
products, while meeting all geothermal product needs. We strive to
always have the products our distributors need in stock. As one of the
leaders in geothermal, B & D plans to grow with the industry and
continue to push the industry with creative ideas, quality products, and
great distributor service.”