Hitachi SJ Series Operation Manual page 5

INDOOR UNIT INDICATORS
OPERATION LED
This LED lights during operation.
The OPERATION LED fl ashes/dimming in the following
cases during heating.
(1) During preheating
For about 2–3 minutes after starting up.
(2) During defrosting
Defrosting is performed about once every one hour
when frost forms on the heat exchanger of the outdoor
unit, for 5–10 minutes each time.
FROST WASH LED
This led lights when the Frost Wash
function is in operation.
This led blinks to suggest operating
manual FROST WASH operation after 42
hours of air conditioner cumulative usage.
(not applicable for Multi split connection)
TIMER LED
This LED lights up when the timer is working.
TEMPORARY SWITCH
Use this switch to start and stop when the remote controller does not work.
By pressing the temporary switch, the operation is done in automatic mode.
●
When the operation is done using the temporary switch after the power source is turned off and turn on
●
again, the operation is done in automatic mode.
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TEMPORARY SWITCH button