IM-S27-12 CH Issue 12
1. Introduction
Note: This manual should be read in conjunction with the standard SX100 Operator's
and Site manuals
The SX100e is a development of the SX100 controller with enhanced features, which have
been incorporated to simplify and improve the programming and operation of the controller,
particularly when used with heat exchange packages.
The differences in specification and operation of the SX100e in comparison to the SX100 are
outlined below.
AT
MAN
82
EV1
EV2
EV3
RUN
HLD
SET
PRG
MODE
PROG RUN\ STOP
67
65
pow:
50%
SX100e
2. General product information
2.1 Front facsia
1. In the top left of the controller front there are now only three LED's instead of five - these are:
- AT - indicating if auto tune is active
- Thermometer Symbol - showing that Alarm 2 is active (EasiHeat bypass valve energized)
- MAN - indicating if the controller is in manual mode
2. The 'PROF' button has been renamed 'PROG'
3. The 'RUN/HOLD' button has been renamed 'RUN/STOP' as it more accurately describes its
new function.
4. In the top right of the controller front there are now only three LED's instead of four - these
are:
EV1 - Pump output
EV2 - Alarm 1 active - EasiHeat volt-free contact for remote high temperature alarm indication
EV3 - Loop Alarm active
Fig. 1
Message display
Lower display Upper display
Event LED's
Run LED
Hold LED
Ramp up LED
Ramp down LED
Segment
number
Program
number
Down
button
Up
button
Scroll
button
Auto tune LED
Alarm 2 active
(EasiHeat bypass valve)
Manual LED
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