Sound Levels - Mitsubishi Electric PKFY-P12NHMU-E Technical & Service Manual

2-2. Electrical parts specifi cations
Service Ref.
Symbol
Parts name
Room temperature
thermistor
Liquid pipe thermistor
Gas pipe thermistor
Fuse
FUSE
(Indoor controller board)
Fan motor
Vane motor
(with limit switch)
Linear expansion valve
Power supply terminal
block
Transmission terminal
block
MA remote controller
terminal block

2-3. Sound levels

Measurement location
* Measured in anechoic room.
2-4. NC curves
PKFY-P12, 15NHMU-E
External static pressure : 0Pa
Power source : 208,230V, 60Hz
70.0
65.0
60.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
Approximate minimum
20.0
audible limit on
continuous noise
15.0
10.0
63 125 250 500 1k
OCTAVE BAND CENTER FREQUENCIES(Hz)
PKFY-P12NHMU-E
Resistance 30°F/15.8k , 50°F/9.6k , 70°F/6.0k , 80°F/4.8k , 90°F/3.9k , 100°F/3.2k
TH21
Resistance 30°F/15.8k , 50°F/9.6k , 70°F/6.0k , 80°F/4.8k , 90°F/3.9k , 100°F/3.2k
TH22
TH23
Resistance 30°F/15.8k , 50°F/9.6k , 70°F/6.0k , 80°F/4.8k , 90°F/3.9k , 100°F/3.2k
TH24
MF
MV
LEV
TB2
TB5
TB15
3.3 ft.
(1m)
PKFY-P18NHMU-E
External static pressure : 0Pa
Power source : 208,230V, 60Hz
70.0
High speed
65.0
Low speed
60.0
NC60
55.0
50.0
NC50
45.0
40.0
NC40
35.0
30.0
NC30
25.0
Approximate minimum
20.0
audible limit on
continuous noise
NC20
15.0
10.0
2k 4k 8k 63 125
OCTAVE BAND CENTER FREQUENCIES(Hz)
PKFY-P15NHMU-E
250V 3.15A
8-Pole Output 30W / RCOJ30-CK
MSFBC20 DC12V
DC12V Stepping motor drive
Port 3.2 (0~2000pulse)
(L1, L2, GR) 250V 20A
(M1, M2, S) 250V 20A
(1, 2) 250V 10A
Service Ref.
PKFY-P12NHMU-E
PKFY-P15NHMU-E
PKFY-P18NHMU-E
High speed
Low speed
NC60
NC50
NC40
NC30
NC20
250 500 1k 2k 4k 8k
5 5
PKFY-P18NHMU-E
Sound level at anechoic room : Low-Middle-High
Sound level dB (A)
34-38-42
34-38-42
36-41-45