W100 Cooling Tower/Boiler0 pages

Ordering
Information
WCTW
Relays/Wiring
WBLW

Cooling Tower/Boiler Controllers
Analog Output

-

Sensors

W100W Series

Relays/Wiring
100Ht = t3 powered relays, hardwired
100Pt =t 3 powered relays, prewired USA power cord &
ttpigtails
100Dt =t 3 powered relays, prewired DIN power cord, no
ttpigtails
110Ht =t 3 dry relays, hardwired
110Pt =t 3 dry relays, prewired USA power cord, no pigtails
110Dt =t 3 dry relays, prewired DIN power cord, no pigtails

Metering Pumps

The E-Class is the most innovative and comprehensive
metering pump product line in the world. Over 50 years of
pump experience and a commitment to superior mechanical
design has led to development of many industry firsts, including
360 stroke-per-minute technology, IP67 waterproof construction,
and the world’s highest capacity solenoid metering pumps.

Analog Output
Nt =t No analog output
At =t One isolated analog (4-20 ma) output

Accessories

To complete your system, Walchem provides high
quality accessories that are required for cooling
tower, boiler, potable water, and wastewater
applications. All of Walchem’s accessories are
carefully designed and selected for compatibility
with our pumps and controllers to enable our
customers to provide a complete system solution.

Sensors (WCTW)
Nt =t No sensor
At =t Inline/submersion graphite contacting conductivity
Bt =t Graphite contacting conductivity + Flow Switch tt
tt manifold on panel
Ct =t High pressure contacting conductivity
Dt =t High pressure contacting cond + Flow Switch
tt manifold on panel
Et =t Inline/submersion 316SS contacting conductivity
Ft =t 316SS contacting conductivity + Flow Switch
tt manifold on panel
Gt =t Inline/submersion electrodeless conductivity
Ht =t Electrodeless conductivity + Flow Switch manifold on t
ttpanel

Summary of Key Benefits
Large display with icon based programming makes setup easy
Universal sensor input provides extraordinary flexibility; the same controller can be used
with almost any type of sensor needed
Multiple language support allows simple setup no matter where your business takes you
The third control relay allows the controller to be used in more places than other entry
level products

Sensors (WBLW)
Nt =t No sensor
At =t Boiler sensor with ATC, 250 psi, 20 ft cable
Bt =t Boiler sensor without ATC, 250 psi, 20 ft cable
Ct=t
Condensate sensor with ATC (cell constant 0.1),
tt 200 psi, 10 ft cable
Dt =t Boiler sensor with ATC, up to 100 mS/cm (cell constant t
tt 10), 250 psi, 20 ft cable

Economical package with no additional cost for timer functionality

ABOUT US

Walchem integrates its advanced sensing, instrumentation,
fluid pumping and communications technologies to deliver
reliable and innovative solutions to the global water
treatment market. Our in-house engineering is driven by
quality, technology and innovation. For more information on
the entire Walchem product line, visit: www.walchem.com

180532.D Nov 2013

The W100W series provide an economical and reliable
way to keep your cooling tower, boiler, or condensate
water treatment program under control.

Walchem, Iwaki America Inc.
Five Boynton Road Hopping Brook Park
Holliston, MA 01746 USA
Phone: 508-429-1110 www.walchem.com

Complete flexibility in the function of each relayt
•t Bleed on conductivity
•t Bleed time proportional to makeup water volume
•t Boiler Blowdown on conductivity using intermittent sampling
•t Feed in proportion to bleed time
•t Feed time proportional to makeup water volume
•t Feed as a percentage of elapsed time
•t Biocide timer with pre-bleed and post-feed bleed lockout options
•t Alarm
Optional analog (4-20 mA) output for recording, datalogging or connection to building
energy management systems