DB-300-9
10
4.3
Maximum allowable pressure
The whole system must be designed and operated in
order to guarantee that the maximum allowable pres-
sure in the pressure vessel cannot be exceeded.
Pressure relief valves are absolutely necessary if
• it is to be expected that the maximum allowable
pressure will be exceeded due to external heat
sources (e.g. fire), or if
• the entire refrigerant charge of the system is more
than 90% of the vessel volume at 20°C. Vessel
volume means the volume between the valves be-
fore and after a pressure vessel, which can be shut
off during normal operation. In case of vessels in-
stalled in series, it is the volume of all vessels and
the connecting pipe.
In these cases, pressure relief devices should be in-
stalled to direct the refrigerant or the oil towards the
low-pressure side of the system (emission reduction).
Safety switching devices for limiting the pressure
According to the local regulations, safety switching
devices for pressure limiting must be provided.
4.4
Removal clearance for probe
• Option
• Liquid receivers FS202 .. FS5502
If the probe for infinite liquid level monitoring is moun-
ted or should be retrofitted, the liquid receiver must be
mounted such that the probe can be taken out upwards
(see figure 1, page 10).
X
Fig. 1: Removal clearance for probe
Type
Removal clear-
ance for probe
(= X)
Probe kit
FS202
1000 mm
34740501
FS252
1160 mm
34740502
FS302 / FS562
1280 mm
34740503
FS402 / FS732
1530 mm
34740504
FS2202 /
FS4002
1640 mm
34740505
FS902 / FS4752
1740 mm
34740506
FS1122
1280 mm
34740503
FS1602 /
FS5502
2040 mm
34740507
FS3102
2140 mm
34740508
Summary of Contents for F062H(P)
Page 3: ...DB 300 9 3 8 Decommissioning 33 ...
Page 35: ...DB 300 9 35 8 Außer Betrieb nehmen 65 ...
Page 67: ...DB 300 9 67 8 Mettre hors service 98 ...
Page 99: ...Notes ...
