Danfoss BOCK FK40 User Manual

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8 | AQ453249013813en-000201
© Danfoss | Climate Solutions | 2023.07
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
- Permissible ambient temperature: (-20°C) - (+100°C)
-Max.permissibleswitchingfrequency:12x/h
-A minimum running time of 2 min. at equilibrium (continuous
operation) must be achieved.
Avoid continuous operation near the threshold. Should the com-
pressor happen to be used near the thresholds, we recommend the
use of a thermal protection thermostat (Accessories, Chap. 7).
For operation with capacity regulator:
- Continuous operation, when the capacity regulator is activated,
is not permissible and can cause damage to the compressor.
See chapter 7.1.
- 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suf-
cient oil is transported back to the compressor.
When operating in the vacuum range, there is a danger of air en-
tering 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!
3| Areas of application
 Thecompressorsarefactory-lledwiththefollowingoiltype:
- for R134a, R404A/R507, R407C, R513A BOCK lub E55
- for R22 BOCK lub A46
Compressors with ester oil charge (BOCK lub E55)aremarkedwithanXinthetype
designation (e.g. FKX40/655N).
3.1 Refrigerants
• HFKW / HFC: R134a, R404A/R507, R407C, R513A
• HFCKW / HCFC: R22
3.2 Oil charge
3.3 Limits of application
INFO
For recharging, we recommend the above oil types.
See chapter 6.6.
Maximum admissible
operating pressure (g)
(LP/HP)
1)
: 19/28 bar
1)
LP = Low pressure
HP = High pressure

Danfoss BOCK FK40 Specifications

General

Brand	Danfoss
Model	BOCK FK40
Category	Industrial Equipment
Language	English