5/20
53799173-05
SOUND POWER AND SOUND PRESSURE LEVELS
IMPACT UNITS
SOUND POWER LEVELS
Frequency Hz
SOUND PRESSURE LEVELS
MODEL SPEED
125 250 500 1K 2K 4K dBA
dBA NC
20 Min
42.1 48.6 52.2 47.4 40.7 34.8 52.1
31.6 26
Med
45.5 51.3 54.6 51.8 45.3 39.1 55.6
35.1 30
Max
48.3 53.9 57.2 55.2 48.8 42.9 58.7
38.2 33
40 Min
45.9 51.4 53.3 51.3 46.9 44.6 55.6
35.1 30
Med
47.5 53.1 55.4 53.5 48.9 45.8 57.6
37.1 32
Max
50.7 55.6 58.0 56.6 51.9 48.0 60.4
39.9 35
60 Min
56.4 51.1 52.8 50.2 47.2 42.4 55.2
34.7 27
Med
56.6 53.0 55.4 52.9 48.6 43.6 57.3
36.8 31
Max
58.0 57.8 60.3 58.9 53.7 48.9 62.6
42.1 37
Sound Power Levels were obtained in full conformity with BS 4196: Part 5: 1981. Quantities are shown in dB
with a standard reference of 1 pW.
Sound Pressure Levels are dB relative to 2 x 10
-5
N/m
2
and are calculated from the results under anechoic
conditions and are quoted as an average of all points on a hemisphere of a radius of 3m away from the
centre of the unit.
ELECTRICAL DATA
R407C AIR CONDITIONING SYSTEMS (MCU+)
Single Phase Supply 230Volts - 50Hz Three Phase Supply 400Volts - 50Hz
INPUT FULL LOAD AMPS INPUT FULL LOAD AMPS
MODEL
COMBINATION
Cooling Heating Cooling Heating
SYSTEM
MAX.
STARTING
CURRENT
Cooling Heating Cooling
Heating
SYSTEM
MAX.
STARTING
CURRENT
IMPACT + MCU+ kW kW AMPS AMPS AMPS kW kW A/PH A/PH* A/PH
20(E) + 15 0.9 0.9 6.4 4.0 23 -- -- -- -- --
40(E) + 30 1.4 1.7 8.7 7.6 37 1.4 1.7 4.5 7.6 19
40(E) + 40 1.6 1.7 10.8 7.6 51 1.6 1.7 5.7 7.6 23
60(E) + 40 1.6 2.5 10.9 11.1 51 1.6 2.5 5.8 11.1 23
60(E) + 60 2.5 2.5 10.2 10.8 62 2.5 2.5 4.6 10.8 33
R407C AIR CONDITIONING SYSTEMS (DCU+)
Single Phase Supply 230Volts - 50Hz Three Phase Supply 400Volts - 50Hz
INPUT FULL LOAD AMPS INPUT FULL LOAD AMPS
MODEL
COMBINATION
Cooling Heating Cooling Heating
SYSTEM
MAX.
STARTING
CURRENT
Cooling Heating Cooling
Heating
SYSTEM
MAX.
STARTING
CURRENT
IMPACT + DCU+ kW kW AMPS AMPS AMPS kW kW A/PH A/PH* A/PH
20(E) + 15 1.3 0.9 6.0 4.0 25 -- -- -- -- --
40(E) + 30 1.8 1.7 8.4 7.6 37 1.8 1.7 3.6 7.6 19
40(E) + 40 2.3 1.7 10.6 7.6 51 2.3 1.7 4.8 7.6 24
60(E) + 40 2.3 2.5 10.7 11.1 51 2.3 2.5 4.9 11.1 24
60(E) + 60 3.1 2.5 14.3 11.1 61 3.1 2.5 6.0 11.1 26
R407C HEAT PUMP SYSTEMS (MHPUE)
Single Phase Supply 230Volts - 50Hz Three Phase Supply 400Volts - 50Hz
INPUT FULL LOAD AMPS INPUT FULL LOAD AMPS
MODEL
COMBINATION
STD.
MODEL
+ ELECT
Heating
STD.
MODEL
+ ELECT
Heating
SYSTEM
MAX.
STARTING
CURRENT
STD.
MODEL
+ ELECT
Heating
STD.
MODEL
+ ELECT
Heating
SYSTEM
MAX.
STARTING
CURRENT
IMPACT + MHPUE kW kW AMPS AMPS AMPS kW kW A/PH A/PH* A/PH
20(E) + 15 0.9 1.7 6.4 9.9 31 -- -- -- -- --
40(E) + 30 1.4 3.0 8.7 15.7 42 1.4 3.0 4.5 11.5 26
60(E) + 50 2.1 4.5 9.5 19.9 61 2.1 4.5 4.6 15.0 33
* Max Phase
Heronhill - for all your Marstair requirements
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