Galletti MPI DC 010, Technical Manual

Page: 20 / 36

MPI DC
20 All copying, even partial, of this manual is strictly forbidden. RG66007970 - Rev 01
7 SOUnD leVelS
leGenD
lp
a
Total sound pressure level, weighted A, measured at a distance of 10 m, with a directivity factor of 2�
lw Sound power level by octave band, not weighted
lw
a
Total sound power level, weighted A
8 OPeRaTInG lIMITS
The graphs below illustrate the operating limits of MPI DC units (in the case of continuous operation) in relation to the outlet water temperature and outdoor
air temperature�
Operating limits
Chiller heat pump
min max min max
Inlet water temperature (°C) 8 20
1
25 42
Outlet water temperature (°C) 5 15 28 58
2
Water temperature differential (°C) 3 8 3 8
Outdoor air temperature (°C) -10
3
48 -10 35
1 For transitory periods (e.g. equipment start up) values up to 25 °C are allowed
2 Value that may be reached only for outdoor air temperatures exceeding 0°C.
3 With condensation control: outdoor air T min -15 °C
Warning!: The units are designed to work with water and air temperatures falling within the range defined by the operating limits�
Attempting to operate the units beyond these limits could cause irreparable damage to the units themselves�
8.1 OPeRaTInG lIMITS In ChIlleR MODe
Outlet water temperature (°C)
air temperature (°C)
6 PeRFORManCeS
6.4 InTeGRaTeD CaPaCITIeS
In the heat pump operation (heating mode), the actual heating capacities of units may be lower than the values shown in the table, due to defrosting cycles�
To obtain the actual heating capacity, multiply the capacity values by the corrective coefficients given below�
Control
air temperature dry bulb (°C)
-5 0 5 >5
µ
chiller2 0,89 0,88 0,94 1
PCO XS 0,91 0,9 0,94 1
Modell
lw lw
a
lp
a
125 hz 250 hz 500 hz 1000 hz 2000 hz 4000 hz 8000 hz Total
low-noise
version
Total
low-noise
version
dB dB dB dB dB dB dB dB (a) dB (a) dB (a) dB (a)
MPI DC 08 74,1 67,8 67,2 63,1 55,9 50,9 47,1 68,0 66,0 40,0 38,0
MPI DC 010 79,1 71,2 66,1 61,2 58,9 58,4 57,0 70,0 68,0 42,0 40,0
MPI DC 014 76,6 70,2 69,6 65,6 58,3 53,3 49,6 71,0 69,0 43,0 41,0
MPI DC 018 76,6 70,2 69,6 65,6 58,3 53,3 49,6 71,0 69,0 43,0 41,0
MPI DC 023 77,9 72,0 70,3 67,7 67,8 59,7 58,3 74,0 72,0 46,0 44,0
MPI DC 029 77,9 72,0 70,3 67,7 67,8 59,7 58,3 74,0 72,0 46,0 44,0