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Guide For Operation Condition - Mitsubishi Electric PAR-21MAA Technical Manual

Ma remote controller for city multi and mr.slim air conditioners.
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2. Guide for Operation Condition

Inspection item
Breaker
Terminal block
Outdoor Unit
Indoor Unit
(Insulation resistance)
(Voltage)
Accumulated operating time
Com-
Number of ON/OFF times
pressor
Current
Refrigerant/heat exchanger temperature COOL
Refrigerant/discharge temperature COOL
Air/outside air temperature
(Air/discharge temperature)
Appearance
Heat exchanger
Sound/vibration
Air/Room air temperature
(Air/discharge temperature)
Refrigerant/heat exchanger temperature COOL
Filter operating time*
Decorative panel
Filter
Fan
Heat exchanger
Sound/vibration
* The filter operating time is the time that has elapsed since the filter was reset.
Area
Check item
Normal
Normal operation state
Filter inspection
Filter may be clogged. *1
Inspection A
Performance has dropped. Detailed in-
spection is necessary.
Inspection B
Refrigerant amount is dropping.
Inspection C
Filter or indoor heat exchanger may be
clogged.
* The above judgement is just guide based on Japanese standard
conditions.
It may be changed depending on the indoor and outdoor temperature.
*1 If may be judged as "Filter inspection" due to the outdoor and indoor
temperature, even though it is not clogged.
8
Result
Good
Retightened
Good
Retightened
Good
Retightened
M
V
Time
Times
A
°C
HEAT
°C
°C
HEAT
°C
COOL
°C
HEAT
°C
COOL
°C
HEAT
°C
Good
Cleaning required
Good
Cleaning required
None
Present
COOL
°C
HEAT
°C
COOL
°C
HEAT
°C
°C
HEAT
°C
Time
Good
Cleaning required
Good
Cleaning required
Good
Cleaning required
Good
Cleaning required
None
Present
Judgment
Cool
Heat
Check Points
Enter the temperature differences between
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.
Classification
Inspection
Is "000" displayed stably in Display
on the remote controller?
Temperature
(
Discharge temperature) - (
difference
heat exchanger temperature)
(
Indoor room temperature) -
Indoor heat exchanger temperature)
Inspection
Is "000" displayed stably in Display
on the remote controller?
Temperature
(
Discharge temperature) - (
difference
heat exchanger temperature)
(
Indoor heat exchanger temperature) -
(
Indoor room temperature)
* Fixed Hz operation may not be possible under the following tempera-
ture ranges.
A)In cool mode, outdoor intake air temperature is 40
indoor room temperature is 23
B)In heat mode, outdoor intake air temperature is 20
indoor room temperature is 25
* 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.
* In heat mode, the operation state may vary due to frost forming on the
outdoor heat exchanger.
Cool mode
°C
45
40
Inspection C
35
30
25
Filter inspection
20
Normal
15
Inspection B
10
Inspection A
5
0 10 20 30 40 50 60 70 80
[
Discharge temperature] - - [
heat exchanger temperature]
,
,
and
Item
Result
Stable Unstable
Outdoor
(
D
Stable Unstable
Indoor
or higher or
°C
or lower
°C
or higher or
°C
or lower
°C
Heat mode
°C
45
Inspection C
40
Filter inspection
35
30
25
Normal
20
15
Inspection B
10
Inspection A
5
°C
10 20 30 40 50 60 70 80
Outdoor
[
Discharge temperature] - [
heat exchanger temperature]
into
°C
°C
°C
°C
°C
Indoor

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  • Chimsomu Paul Jun 15, 2019 04:23:
    Please what is the cause wired remote control not coming on.