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2. User instructions and delivery
information
Certain computer programs contained in this product were developed by Spirax-
Sarco Limited ("the Work(s)").
Copyright © Spirax-Sarco Limited 2017
All rights reserved
Spirax-Sarco Limited grants the legal user of this product (or device) the right to
use the Work(s) solely within the scope of the legitimate operation of the product
(or device). No other right is granted under this licence. In particular and without
prejudice to the generality of the foregoing, the Work(s) may not be used, sold,
licensed, transferred, copied or reproduced in whole or in part or in any manner
or form other than as expressly granted here without the prior written consent of
Spirax-Sarco Limited.
2.1 General description
The BC3250 is a blowdown controller for steam boilers. It controls TDS (total dissolved
solids – salts in solution) by opening and closing a blowdown valve. It also controls a bottom
blowdown valve, which removes precipitated solids from the bottom of the boiler shell.
The product works by controlling the conductivity of liquids, in conjunction with a Spirax Sarco
conductivity sensor, a boiler blowdown valve or condensate dump valve.
The bottom blowdown valve is controlled by a timer.
The front panel has an LCD graphics display and five-button keypad.
An additional filter can be selected to increase the damping effect where the probe is fitted
directly in the boiler. This avoids over-frequent valve operation.
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