Operating Limits; Frequency Of Starts; Ambient Temperature; Minimum Inlet Pressure - KSB CalioTherm Pro 25 Installation & Operating Manual

2
≤ +75 °C for short-time duty ≤ 5 minutes
3 ≤ +75 °C for short-time duty ≤ 5 minutes
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6 Commissioning/Start-up/Shutdown

6.2 Operating limits

DANGER
Non-compliance with operating limits for pressure, temperature, fluid handled and
speed
Hot fluids escaping!
▷ Comply with the operating data indicated in the data sheet.
▷ Avoid prolonged operation against a closed shut-off element.
▷ Never operate the pump at product temperatures exceeding those specified in
the data sheet or on the name plate.

6.2.1 Frequency of starts

CAUTION
Excessively high frequency of starts
Damage to the pump set!
▷ Never exceed the specified switching frequency.
Maximum 20 starts per hour via the power supply.

6.2.2 Ambient temperature

CAUTION
Operation outside the permissible ambient temperature
Damage to the pump (set)!
▷ Observe the specified limits for permissible ambient temperatures.
Observe the following parameters and values during operation:
Table 13: Permissible ambient temperatures specified for the fluid temperature
Fluid temperature
[°C]
2)
≤ +70

6.2.3 Minimum inlet pressure

The minimum inlet pressure p
noises at the indicated fluid temperature T
The indicated values are applicable up to 300 m above sea level. For installation at
altitudes > 300 m, an allowance of 0.01 bar / 100 m must be added.
Table 14: Minimum inlet pressure p
Fluid temperature
[°C]
3)
≤ +70
CalioTherm Pro
Permissible ambient temperature
[°C]
+40
at the pump suction nozzle serves to avoid cavitation
min
.
max.
specified for the fluid temperature T
min
Minimum inlet pressure
[bar]
0,5
max.