4. Usage
5.
Reduced
Setpoint for Heating
Reduced Setpoint Function:
Sometimes
the
house
heating
demand
maybe
lower
than
normal
,
like
during
sleep
period
or
working
time
.
In
this
way
,
a
reduced
value
based
on
standard
set
value
can
be
set here
for better efficiency of the whole system.
Quiet Operation:
Also, for
a
better
noise
issue
,
a
Quiet
Operation
can
be
also
set
in
this
menu
.
After
activating
this
function
and
setting
the
time
period
for
quiet
operation,
unit
will
try
to
reduce
its
noise
level
.
Note: Unit efficiency in quiet operation mode will be lower than standard working mode.
5.01 Reduced Setpoint
Turn ON/ OFF Reduced Setpoint function.
5.02 Temp. Drop/Rise
Set temperature drop (in heating) or increase (in cooling)
based
on
standard
set
temperature
during
Reduced
Setpoint
operation
.
5.03 Timer for Reduced Setpoint Function
Set a working time period for Reduced Setpoint
function
.
Different
time
periods
for
every
day
in
a
week
can
be
set
.
5.04
Quiet Operation
Turn ON/ OFF Quiet Operation function.
5.05 Allowable Temp. Drifting
Set allowable temperature drift during Quiet Operation
.
When the unit works in quiet mode, its output may drop because both fan and compressor
may
need
to
work in lower speed.
However,
temperature in the system may drop (in
heating
)
or
increase
(
in
cooling
)
too
much
due to the lower output. So when actual temperature drift from the standard set
value
is
more
than
the ∆T
set
value
set
here
,
unit
will
end
this
quiet
operation, to ernsure
comfortable house temperature.
5.06 Timer for Quiet Operation
Set a working time period for Reduced Setpoint
function
Different
time
periods
for
every
day
in
a
week
can
be
set
.
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