Air Handlers
24
NOTE:
If reasons are still unclear after checking above items, please contact
Napoleon
service center and show phenomena and models.
Following circumstances are not malfunction.
“Malfunction”
Reason
Unit doesn’t run.
When unit is started
immediately after it is
just turned off.
Overload protection switch
makes it run after 3 minutes
delay.
When power is turned
on.
Standby operating for about 1
minute.
Mist comes from the unit. Under cooling.
Indoor high humidity air is
cooled rapidly.
The unit emits noise.
Slight cracking sound
is heard when just
turned on.
It is noise when electronic
expansion valve initialization.
There is consecutive
sound when cooling.
That's sound for gas
refrigerant flowing in the unit.
There is sound when
unit starts or stops.
That's sound for gas
refrigerant stops flowing.
There is slight and
consecutive sound
when unit is running
or after running.
That's sound for operation of
drainage system.
The unit blows out dust.
When unit runs after
no operation for a
long period.
Dust in indoor unit is blew out.
The unit emits odor.
Operating.
The room odor absorbed by
the unit is blew out again.
Indoor unit still runs after
switch off.
After every indoor unit
receive "stop" signal,
fan will keep running.
Indoor fan can be set as “ON”
or “AUTO” mode. Under “ON”
mode, indoor fan will keep
running after switch off the
unit.
Summary of Contents for NPFX24A36A
Page 32: ......
