Installation
39
CG-SVX06D-E4
Operating range
CAUTION:
Maximum operating time
for low condensing water outlet is
1 minute. The compressor shall
become noisy.
The envelope represents the
operating range in which the unit will
work without control limitation. To
keep the unit operating in this
envelope, be careful to adjust
setpoints inside with a clearance
equal to half the dead band.
Check also compressor suction
superheat for being close to 5 or 6°C
for low chilled leaving water
temperature to minimize compressor
discharge temperature. For very high
leaving condensing water
temperature above 55°C, the
refrigerant charge can be minimized
by 20%.
Figure 25 – CGWN operating limits (180 kW-350 kW)
A = Evaporator leaving water temperature (°C)
B = Saturated condensing temperature (°C)
Figure 27 – CGWN operating limits (350 kW-500 kW)
CLWT: Condenser Leaving Water Temperature
ELWT: Evaporator Leaving Water Temperature
Figure 26 – CCUN operating limits (180 kW-350 kW)
A = Evaporator leaving water temperature (°C)
B = Saturated condensing temperature (°C)
Figure 28 – CCUN operating limits (350 kW-500 kW)
SCT: Saturated Condensing temperature
ELWT: Evaporator Leaving Water Temperature
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