Fetco CBS-11H Technical Bulletin

TECHNICAL
BULLETIN
Subject: Thermostat, Timer, & Water Level Board
Applies to: See Below
Effective March 29, 2004, the thermostats, temperature probes, timers, and liquid level
control boards used in several coffee brewer models will be replaced with new digital
components. The models that are affected by this change are:
CBS-11H CBS-21H
CBS-12H
Models CBS-31P and CBS-31Pap use a different type of new thermostat. See Technical
Bulletin 17 for details.
The new components are 100% interchangeable with the old components, so they can be
used as replacement parts in existing equipment. The new thermostat and temp probe can
also be used in older style CBS-70 Series brewers and HWB Series Hot Water Dispensers
that were produced before the new digital versions of these models were introduced.
Part numbers for North American versions:
Part Number / Description
53012 thermostat, 120V
53015 temperature probe, 14" *
53026 temperature probe, 12" *
51006 timer, 120VAC
51005 timer, 120VAC, full/half
51017 timer, 120VAC, dual portion
54001 liquid level board, 120VAC, 50K ohm
54010 liquid level board, 120VAC, 100K ohm
54021 liquid level board, 120VAC, 200K ohm
* Part # 53015 and 53026 – temperature probes, are still available for use with old style thermostats.

Digital thermostat and temperature probes

The range of the thermostat is 177° F to 208° F.
When installed as a replacement part on older equipment, the new thermostat will work
either with the existing analog temp probe, or the new digital temp probe. We recommend
installing the new digital temp probe because of its' superior accuracy. The digital temp
probe cannot be used with the old style thermostats.
When power to the brewer is turned on, the readout will display either "An" (analog), or "dI"
(digital), for 2 seconds to indicate which type of temp probe is installed. Next, the readout
will flash and display the last two digits of the temperature setting for 3 seconds. (Due to
space limitations, the readout shows only the last two digits.)
During normal operation, the digital readout displays the last two digits of the actual water
temperature. When the adjustment tool is turned, the readout begins flashing to indicate
the set point, instead of the actual temperature. After the adjustment tool is released, the
readout stops flashing and displays the actual temperature again.
FETCO ♦ 600 Rose Road ♦ Lake Zurich, IL 60047-0429 USA ♦ Tel. (800) 338-2699 or (847) 719-3000 ♦ Fax: (847) 719-3001
CBS-31A & 31Aap
CBS-32A & 32Aap
Replaced by
K033 digital thermostat kit, 100-120VAC
102198 digital temp. probe assy., 14"
102213 digital temp. probe assy., 12"
K034 digital timer kit, 100-120VAC
108034 water level board, 100-120VAC
108046 water level board, 100-120VAC
NUMBER
14
www.fetco.com
email : techsupport@fetco.com
Date:
CBS-51H10 CBS-52H15
CBS-51H15 CBS-52H20
(Effective with units made after March 29, 2004)
(Includes thermostat, neutral wire, and instructions)
(Includes timer, neutral wire, jumper wire, mounting bracket,
screws, and instructions)
range 50 to 100K ohm (standard)
range 100 to 200K ohm (optional)
March 24, 2004
Rev. March 18, 2005
CBS-61H
CBS-62H