1 3- 3. G U I D E F O R O P E R A T I O N C O N D I T I O N
I nsp ec tion item
R esult
Power supply
Loose con-
nection
B reaker
Good
Retightened
Terminal block
Outdoor Unit
Good
Retightened
Indoor Unit
Good
Retightened
(Insulation resistance)
M
"
(V oltage)
V
1
Accumulated operating time
Time
2
Number of ON/ OFF times
Times
3
Current
A
4
Refrigerant/ heat exch anger temperature
COOL
:
HEAT
:
5
Refrigerant/ discharge temperature
COOL
:
HEAT
:
6
Air/ outside air temperature
COOL
:
HEAT
:
(Air/ discharge temperature)
COOL
:
HEAT
:
Appearance
Good
Cleaning req uired
Heat ex changer
Good
Cleaning req uired
Sound/ vibration
None
Present
Air/ intake air temperature
COOL
:
HEAT
:
(Air/ discharge temperature)
COOL
:
HEAT
:
8
7
9
Refrigerant/ heat ex changer temperature COOL
:
HEAT
:
Filter operating time*
Time
Decorative panel
Good
Cleaning req uired
Filter
Good
Cleaning req uired
Fan
Good
Cleaning req uired
Heat ex changer
Good
Cleaning req uired
Sound/ vibration
None
Present
Com-
pressor
T
emperature
Cleanli-
ness
Outdoor Unit
T
emperature
Cleanliness
Indoor Unit
* The filter operating time is the time that has elapsed since the filter was reset.
C h ec k P oints
Enter the temperature differences between
5
,
4
,
7
and
8
into
the graph given below.
Operation state is determined according to the plotted areas on
the graph.
For data measurements, set the fan speed to "Hi" before activat-
ing maintenance mode.
Is "D000" displayed stably on the remote
controller?
(
5
Discharge temperature) – (
4
Outdoor
heat ex changer temperature)
(
7
Indoor intake air temperature) – (
8
Indoor heat ex changer temperature)
Is "D000" displayed stably on the remote
controller?
(
5
Discharge temperature) – (
8
Indoor
heat ex changer temperature)
(
8
Indoor heat ex changer temperature) –
(
7
Indoor intake air temperature)
Cool
C lassific ation
I tem
R esult
Inspection
Temperature
difference
Heat
Inspection
Temperature
difference
Stable Unstable
:
:
Stable Unstable
:
:
Note: 1. Fix ed Hz operation may not be possible under the following tempera-
ture ranges.
A)In cool mode, outdoor intake air temperature is 40
:
or higher or
indoor intake air temperature is 23
:
or lower.
B )In heat mode, outdoor intake air temperature is 20
:
or higher or
indoor intake air temperature is 25
:
or lower.
2. If the air conditioner is operated at a temperature range other than the
ones above but operation is not stabilized after 30 minutes or more have
elapsed, carry out inspection.
3. In heat mode, the operation state may vary due to frost forming on the
outdoor heat ex changer.
:
45
40
35
30
25
20
15
10
5
0 10
20 30 40 50 60 7 0 80
Normal
Filter inspection
Inspection C
Inspection A
Inspection B
:
45
40
35
30
25
20
15
10
5
0 10
20 30 40 50 60 7 0 80
:
:
Normal
Filter inspection
Inspection C
Inspection A
Inspection B
Cool mode
Heat mode
(
7
Indoor intake air temperature)—
(
8
Indoor
heat ex
changer temperature)
(
8
Indoor heat ex
changer temperature) —
(
7
Indoor intake air temperature)
[
5
Discharge temperature] – [
4
Outdoor
heat ex changer temperature)
[
5
Discharge temperature] – [
8
Indoor
heat ex changer temperature)
Result
Normal operation state
Filter may be clogged. *
Performance has dropped. Detailed in-
spection is necessary.
Refrigerant amount is dropping.
Filter or indoor heat ex changer may be
clogged.
A rea
C h ec k item
Judgment
C ool
Heat
Normal
Filter inspection
Inspection A
Inspection B
Inspection C
Note: The above judgement is just guide based on Japanese standard
conditions.
It may be changed depending on the indoor and outdoor temperature.
*
It may be judged as “filter inspection” due to the outdoor and indoor
temperature, even though it is not clogged.
OCH526C
Содержание PUHZ-HW112YHA-BS
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