Operating Limits - Danfoss BOCK F Operating Manual

3| Areas of application F, F-NH

3.4 Operating limits

D
GB
F
Ru
Permissible rotation speeds:
F2, F3:
F4, F5:
F14, F16:
F2 NH
F4 NH
F14 NH
10 | AQ449946687878en-000201
ATTENTION! Compressor operation is possible within the operating limits.
These can be found in Bock compressor selection tool (VAP)
under vap.bock.de. Observe the information given there.
- Max. permissible discharge end temperature: 140°C
- Max. permissible switching frequency: 12x /h
- A minimum running time of 3 min. steady-state condition
(continuous operation) must be achieved.
Avoid continuous operation near the threshold.
For operation with supplementary cooling:
- Use only oils with high thermal stability.
For operation with capacity regulator:
- Continuous operation, when the capacity regulator is activated,
is not permissible and can cause damage to the compressor.
- The suction gas superheat temperature may need to be reduced
or set individually when operating near to the threshold.
- When the capacity regulator is activated, the gas velocity in
the system can not under certain circumstances ensure that
sufficient oil is transported back to the compressor.
When operating in the vacuum range, there is a danger of air
entering on the suction side. This can cause chemical reactions, a
pressure rise in the condenser and an elevated compressed-gas
temperature. Prevent the ingress of air at all costs!
960 - 1800 rpm
500 - 1800 rpm
700 - 1800 rpm
, F3 NH : 960 - 1500 rpm
3 3
, F5 NH : 500 - 1500 rpm
3 3
, F16 NH : 700 - 1500 rpm
3 3
3
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