MITSUBISHI ELECTRIC P500YMF-C User Manual
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Check points for system structure
In the case of the PURY-P400·500 YMF-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
9
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.
Connecting piping size of branch piping correct?
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?
The phases of the L line (L1, L2, L3) correct?
L line and N line connected correct?
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.
Electric shock.
Error stop, not operate.
Some electric parts will be damaged.