Mitsubishi Electric PUZ-ZM60VHA, Руководство по обслуживанию

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101
<Guide for opration condition>
Inspection item Result
Power supply
Loose con- nection
Breaker Good Retightened
Terminal block Outdoor Unit Good Retightened
Indoor Unit Good Retightened
(Insulation resistance) M
"
(Voltage) V
1
Accumulated operating time Time
2
Number of ON/OFF times Times
3
Current A
4
Refrigerant/heat exchanger temperature COOL
:
HEAT
:
5
Refrigerant/discharge temperature COOL
:
HEAT
:
6
Air/outside air temperature COOL
:
HEAT
:
(Air/discharge temperature) COOL
:
HEAT
:
Appearance Good Cleaning required
Heat exchanger Good Cleaning required
Sound/vibration None Present
Air/intake air temperature COOL
:
HEAT
:
(Air/discharge temperature) COOL
:
HEAT
:
8
7
9
Refrigerant/heat exchanger temperature COOL
:
HEAT
:
Filter operating time* Time
Decorative panel Good Cleaning required
Filter Good Cleaning required
Fan Good Cleaning required
Heat exchanger Good Cleaning required
Sound/vibration None Present
Com-
pressor
Temperature
Cleanli- ness
Outdoor Unit
Temperature
Cleanliness
Indoor Unit
* The filter operating time is the time that has elapsed since the filter was reset.
Check Points
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 exchanger temperature)
(
7
Indoor intake air temperature) – (
8
Indoor heat exchanger temperature)
Is "D000" displayed stably on the remote
controller?
(
5
Discharge temperature) – (
8
Indoor
heat exchanger temperature)
(
8
Indoor heat exchanger temperature) –
(
7
Indoor intake air temperature)
Cool
Classification Item Result
Inspection
Temperature
difference
Heat
Inspection
Temperature
difference
Stable Unstable
:
:
Stable Unstable
:
:
Fixed 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.
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.
Notes:
In heat mode, the operation state may vary due to frost forming on the
outdoor heat exchanger.
:
45
40
35
30
25
20
15
10
5
0 10 20 30 40 50 60 70 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 70 80
: :
Normal
Filter inspection
Inspection C
Inspection A
Inspection B
Cool mode Heat mode
(
7
Indoor intake air temperature)—
(
8
Indoor
heat exchanger temperature) (
8
Indoor heat exchanger temperature) —
(
7
Indoor intake air temperature)
[ 5 Discharge temperature] – [ 4 Outdoor
heat exchanger temperature)
[ 5 Discharge temperature] – [ 8 Indoor
heat exchanger temperature)
Result
Normal operation state
Filter may be clogged. *1
Performance has dropped. Detailed in-
spection is necessary.
Refrigerant amount is dropping.
Filter or indoor heat exchanger may be
clogged.
Area Check item
Judgement
Cool 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.
1.
2.
3.
OCH653