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
Phone (712) 652
-
3424
www.bdmfginc.com
9
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.
