Systems Controls & Instruments CEM-24 Series Owner's Manual page 13

In auto change-over mode – a solid "|" or "||" signs will flash next to the mode to
indicate the active stage (HEAT 1 or HEAT 2, COOL 1 or COOL 2). Solid non-
flashing "|" will appear next to the mode to indicate that none of the stages is
currently active and the displayed set-point temperature is of that mode.
Display of set- - - - point temperature for heat Display of set Display of set Display of set
HEAT
COOL
Display of of of of set Display
Display Display
HEAT
COOL
5.5 Selecting fan/auto fan
Press the Auto Fan button to switch between:
FAN ON – The fan will work continuously.
• • • •
Auto Fan – The fan will work according to cooling/heating demand ("AUTO
•
FAN" appears on display)
In Oil/Gas systems, in heat mode, switching to Auto Fan mode will
stop the fan (the Fan will NEVER turn on).
point temperature for heat point temperature for heat point temperature for heat
SET TEMP
set- - - - point point temperature temperature for
set set point point temperature temperature
SET TEMP
Heating mode active Heating mode active Heating mode active Heating mode active
SET
HEAT
COOL
for cool cool Cooling mode active Cooling mode active
for for cool cool Cooling mode active Cooling mode active
SET
HEAT
COOL
TEMP
TEMP
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