Exchanger operating range
TYPE OF TEST
Internal exchanger
DPr DPw
[kPa] [kPa]
CLIVET C 4500 1000
PED (CE) 4500 1000
DPr = Max. operating pressure referigerant gas side
DPw = Max. operating pressure water side (utility)
Overload and control device calibrations
Setting instruments
apre chiude valore
High pressure safety pressure switch [kPa] 4050 3300 -
Low pressure safety switch [kPa] 450 600 -
low pressure switch (Brine) [kPa] 200 350 -
antifreeze protection [°C] 3 5.5 -
high pressure safety valve [kPa] - - 4500
low pressure safety valve [kPa] - - 3000
Max no. of compressor starts per hour [n°] - - 10
high compressor discharge temperature safety thermostat [°C] - - 120
50
Sound levels
Size
Sound power level (dB)
Sound
power
level
Sound
pressure
level
Octave band (Hz)
63 125 250 500 1000 2000 4000 8000 dB(A) dB(A)
182 73 77 80 78 73 69 65 54 62 79
222 73 77 80 78 73 70 65 54 62 79
262 71 76 79 77 73 70 65 56 61 79
302 73 78 80 78 74 70 65 55 63 80
352 77 82 85 82 78 76 70 58 66 84
Sound levels refer to units at full load.
The sound pressure is measured at 1 m from the external surface of the ducted unit operating in an open eld. (standard UNI EN ISO 9614-2)
Data referred to the following conditions:
- Internal exchanger water temperature = 12/7°C
- outdoor air temperature 35°C
- Static available pressure 120 Pa
Please note that when the unit is installed in conditions dierent from nominal test conditions (e.g. near walls or obstacles in general), the sound levels may undergo substantial variations.
Admissible water flow rates
Min. (Qmin) and max. (Qmax) water flow-rates admissibles for the correct unit operation
Size 182 222 262 302 352
Qmin [l/s] 1.3 1.5 1.7 2.9 3.2
Qmax [l/s] 3.6 4.2 4.7 8.1 9.0
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