4. Usage
14.6) Ambient Temp. to activate first class anti-freezing
14.7) Ambient Temp. to activate second class anti-freezing
14.8) Ambient Temp. to stop second class anti-freezing
14.9) Water Temp. to activate second class anti-freezing
14.10) Water Temp. to stop second class anti-freezing
These
parameters
are
used
for
setting
the
anti
-
freezing
protection
of
the
unit
in
winter
time
,
when
unit
is
powered
but
turned
OFF
.
When
ambient
temperature
is
lower
than
fist
class
anti
-
freezing
starting ambient temperature,
unit will circulate the water in the system at interval for anti-freezing.
When
ambient
temperature
drops
below
second
class
anti
-
freezing
starting
ambient
Temperature,
heat
pump
unit
will
start
either
compressor
or
backup
heating
sources to maintain
the water temperature within the range
“
Water Temp. to activate second class anti-freezing”
and
“
Water Temp. To stop second class anti-freezing
”.
Note:
This
function
is
provided
to
the
customer
FREE
OF
CHARGE
for
helping
their
house
heating and DHW water system free from freezing up. Customer should always have his own
protection system for preventing the water system from freezing up. We have no responsibility or
obligation if any damage has caused by water freezing.
14.11) Mode Switch
during
Defrosting
If
water
temperature
is
too
low
,
the
condenser
may
have
the
risk
of
freezing
up
and
cause
damage
the
complete
refrigerant
system
.
Thus
,
if
water
temperature
in
current
working
mode
is
too
low
for
defrosting
,
unit
will
check
the
water
temperature in other circuit. If the water
temperature in other circuit is good enough for defrosting, it will switch the water flow to this circuit
for defrosting operation automatically.
If
there
is
no
other
circuit
,
or
the
water
temp in
other
circuit
is
also not high enough for
defrosting, unit will stop defrosting and automatically lift up the set water temperature, preparing
for the next defrosting cycle.
If
defrosting
failed
for
over
three
times
continuously
,
unit
stops
and
can
only
be
recovered
by
re
-
powering the machine. Please check the water system at this moment to ensure everything works
properly before re-powering the unit.
Note
:
This
function
can
only
work
with
outdoor
software
higher
than
,
otherwise
this
function
will interrupt the working of the machine during
defrosting all the time.
AC13I20.WP.V004_T01
or AC13I17.WP.V009_T01
14.12) Fan Speed Limit
This
function
is
for
reducing the fan speed in order to reduce the noise, however it would reduce the
performance of the heat pump at the same time. The fan speed limitation can be set at down to two
levels 95% and 90%. This function is not recommended unless the noise is strongly
complained
by
customer
/
neighbor
.
1100
