FULTON VMP Series Installation, Operation And Maintenance Manual page 97

Fulton Ltd
Systems that return for example very little condensate during the day, but a high proportion at night, are almost
impossible to control with any real accuracy. At best a compromise calibration will be achieved, where too much
blowdown at times may be the penalty.
When installing and commissioning a new Automatic TDS Control Blowdown System, it must be accepted that the
calibration will be a reiterative process, requiring continual sampling, testing, and re-calibration until stable system
operating conditions are achieved.
When purchasing an Automatic TDS Control Blowdown System from Fulton, the equipment would normally
be supplied with the controller wired and fitted to the boiler control panel, with all the other parts supplied
loose for piping and wiring on site by others, unless agreed otherwise in our order acknowledgement.
The purchase price of the system supplied fully or part fitted includes for one single visit to commission the system
once installed. Part of the commissioning process will be the initial calibration of the TDS sensor to the water
conditions prevailing at the time.
Further re-calibration will be required until the water treatment regime has been established, and "typical" water
conditions have been achieved. Routine calibration checks will be required as part of the site maintenance and
water treatment monitoring.
The equipment and staff training required to carry out TDS sampling and calibration can be provided by Fulton. In
order to achieve the maximum benefit from the installation of an Automatic TDS Blowdown System, it is strongly
recommended that site personnel be provided with the necessary equipment, and training in order for them to fully
understand the function of the system, and the possible consequences of their actions.
Note: Where Automatic TDS Blowdown systems are provided as part of a skid mounted or packaged plantroom
system, they will be fully installed piped and wired.
For further details on the installation of Automatic TDS Controlled Blowdown Systems consult the Fulton Ltd
Technical Information Sheet 35. Automatic TDS Control Blowdown System Installation Guide.
e.g. Hourly blowdown rate required to maintain a boiler TDS of 2000 with a feedwater TDS of 200 = 12%
For a 1000 kg/h boiler 120 kg/h (120 l/h) of blowdown is required.
Fulton Ltd
5 Fernhurst Road, Fishponds, Bristol.
BS5 7FG. England.
Every effort is made to ensure accuracy at time of going to press. However as part of our policy of continual product improvement, we reserve the right to alter specifications without prior notice.
VMP-IOMM-2018-2
30
25
20
15
10
5
0
0 100
Feedwater TDS (ppm)
% Blowdown required to maintain a boiler TDS
of 2000ppm against feed water TDS
Figure. 2 - TDS Graph 2
Telephone: +44 (0) 117 972 3322
Fax: +44 (0) 117 972 3358
E-mail: sales@fulton.co.uk
Website:
200 300
From Fig. 1.
www.fulton.co.uk
APPENDIX - A
TI-30-Auto TDS Blowdown-2017-4
400 500
Page 2 of 2
Page 89