Cool Mode; Led Indicators - ICM Controls SC 4211 Installation, Operation & Application Manual

Cool Mode

• In this mode, the thermostat controls the cooling system . When the
cooling outputs, the snowflake icon apprears on the display .
Note: There is a four minute delay for your compressor to restart
after it has turned off . To bypass the compressor time delay,
go to OFF mode for 5 seconds .
Cool and Heat Mode (Auto Changeover)
• In this mode, the thermostat controls the cooling and heating systems,
automatically changing over from one to the other as needed .
• The timing display alternates with the set temperature every 10
seconds in the cool and heat mode .
There are three LED indicators located on the front of the
thermostat . They are designed to inform you of the following:
AUX (GREEN): This turns on when the auxiliary (back-up)
heating is in operation . This is the second
(non-economy) stage of heat .
CHECK (RED): When this turns on, a malfunction has
occurred somewhere in the heat pump
system . Please contact a qualified service
technician as soon as possible to check your
system .
EMER (RED): This light turns on whenever the emergency
heat is selected . While in the emergency heat
mode, the heat pump compressor is off,
and the emergency heat (and auxiliary heat)
maintains the setpoint temperature .

LED Indicators

EMER (RED)
CHECK (RED)

AUX (GREEN)