EB-CX Installation Manual

02/26/2019
13 BI5212
Staging/Modulating Jumper
The control board on the EB-CX series boiler line is a universal controller with the capability of
interfacing with many different models of TS Electro boilers.
With regard to the EB-CX boiler line, the “staging” setting is the only available
option for this jumper setting.
Circulator pump mode – as factory set, the circulator pump is controlled directly from the “W” input
terminal. In this setup the circulator pump continues during load control interrupt (or optional remote
standby switch). There is a provision within the controller board (inside) to allow the circulator pump to
not operate during load control interrupt.
On the inside control board, just above the two bottom
terminal blocks, is a small pin jumper arrangement. The
black “device” sets up the pump mode. Just below this
pin jumper arrangement are W and L lettering. When
the two pin shorting device is in the W position, the
pump is a direct function of R to W input. When the two
pin jumper is in the L position, the pump is interrupted
during a load control.
WARNING
THIS SHORTING DEVICE MUST BE IN ONE OF THE TWO POSITIONS FOR THE CIRCULATOR
PUMP TO PROPERLY OPERATE.