Appendix C. CS700H Operation Details
C-5
TABLE C-3. Snow Sensor Power Options
Mode (
a
X20!
command)
Snow Enabled
a
X22! command
Description
Auto
0
Snow sensor isn’t powered. Cannot
detect real snow, instead it indicates
snow is always present.
1
Snow sensor only is powered only
when the ambient temperature is
below the
Active On
temperature.
Only detects snow when the
temperature is in this range.
Manual
0
Snow sensor isn’t powered. Cannot
detect real snow, instead it indicates
snow is always present.
1
Snow sensor always is powered, and
can detect snow at any time.
C.5 Operating Modes
The CS700H can be put into automatic or manual operation modes. TABLE
describes how the modes are entered and the operation of the modes.
TABLE C-4. Operating Modes
Auto/
Manual
X20
Cycle
Enable
X29
Heater
On/Off
X21
Snow
Enabled
X22
Snow
Description
0
X
X
1
0 / 1
Auto Mode:
When the Ambient temperature falls below the
Active On temperature X23, and Snow is
detected, then a Heating Cycle is started. (That
is, the heater elements are switched on and off
to keep inside the funnel at the SetPoint
temperature X26.) This is a low power mode,
as the heater cycle only begins when snow is
detected!
0
X
X
0
1
Auto Mode:
Same as the previous, but because the snow
sensor is disabled the snow detected flag is
always set. The Heating Cycle is started when
the Ambient temperature fall below the Active
On temperature X23. This mode uses more
power and should only be used when the
system is supplied by mains power.
