Mitsubishi Electric CITY MULTI PUHY-400YMF-C, Руководство по обслуживанию

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-46-
Power
source
for
outdoor
unit
Switch
Switch
MAIN board
Outdoor unit
2
1
1
6
1 2 3 4 5
1
1 2
In the case of the PUHY-(P) 600·650·700·750 YSMF-C
Check points from installation work to test run.
Classification Portion Check item Trouble
Installation
and piping
Power source
wiring
1
2
3
4
5
6
7
8
1
2
3
4
Instruction for selecting combination of outdoor unit, and
indoor unit followed? (Maximum number of indoor units
which can be connected, connecting model name, and
total capacity.)
Follow limitation of refrigerant piping length? For ex-
ample, 100 m or less (total length: 220 m) at the farthest.
Branch pipe properly selected?
Refrigerant piping diameter correct?
Refrigerant leak generated at connection?
Insulation work for piping properly done?
Specified amount of refrigerant replenished?
Pitch and insulation work for drain piping properly done?
Specified switch capacity and wiring diameter of main
power source used?
Proper grounding work done on outdoor unit?
Not operate.
Not cool (at cooling).
Not heat (at heating).
Not cool, not heat, error stop
. Condensation drip in piping.
Not cool, not heat, error stop.
Water leak, condensation drip in
drain piping.
Error stop, not operate.
Error stop, not operate.
L line and N line connected correct?
Some electric parts will be dameged.
* Limitations apply when 17 or more indoor units are connected. Please refer to the installation manual.
3 4
46 2
57
The phase of the L line (L
1
,L
2
,L
3
) is correct.