Mounting; Vibration Damper; Shut-Off Valves / Weld Connections - Bitzer 2Mte-4K Instructions De Service

ter system and in low temperature applications requires
individual consultation with BITZER.
The use of the 2MTE-4K .. 6CTE-50K compressors
with motor version 1 as parallel compressors is pos-
sible. However, with regard to the lubrication condi-
tions, the gas suction superheat should not fall below a
minimum value of 10 K. The partial load range or the
switching to the operation with flash gas bypass is of
particular importance for the evaluation of the lubrica-
tion conditions. If necessary, a heat exchanger should
be used to minimise the refrigerant concentration in the
oil. Consultation with BITZER is recommended.
The use of compressors with motor version 2 as paral-
lel compressors requires individual consultation with
BITZER.
Filter drier
The solubility of water in gaseous CO
than in other refrigerants. This means that a relatively
small amount of moisture can freeze out of the refriger-
ant and block or clog the regulation valves, particularly
in low temperature applications. Therefore a gener-
Compressor
2MTE-4K .. 2KTE-7K
4PTC-6K .. 4KTC-10K
4JTC-10K .. 4CTC-30K
6FTE-35K .. 6CTE-50K
4PTC-7.F3K .. 4KTC-10.F4K
Tab. 2: Vibration dampers 2MTE-4K .. 6CTE-50K and 4PTC-7.F3K .. 4KTC-10.F4K

4.2 Shut-off valves / weld connections

Compressor Shut-off valve article no. Designation
2MTE .. 2KTE 361 367 18
4PTC .. 4KTC
361 367 19
4JTC .. 4CTC 361 367 20
361 367 21
361 367 23
6FTE .. 6CTE 361 367 22
KB-130-6
ously sized filter drier and a sight glass with moisture
indicator for CO
operating pressures of the filter driers! The application
may possibly be limited to the liquid line after the inter-
mediate pressure receiver or the suction side (for sys-
tems without intermediate pressure receiver).

4 Mounting

4.1 Vibration damper

The compressor may be rigidly mounted if there is no
danger of fatigue fractures in the pipeline system con-
nected to it. Otherwise the compressor must be moun-
ted on vibration dampers.
Mounting the suction gas and discharge gas lines:
is much lower
2 • Mount compressor on the vibration dampers or ri-
Kit number, article number (4 pieces)
370 005 02
370 005 02
370 005 03
370 005 03
370 000 20
"Brazed/welded connection"
Ø19 .. 25.4
Swagelok valve 18 mm
"Brazed/welded connection"
Ø10.1 .. 14
"Brazed/welded connection"
Ø16.1 .. 22
"Brazed/welded connection"
Ø22.4 .. 30
Swagelok valve 28 mm
are necessary. Observe the maximum
2
gidly. In this position (= operational position), con-
nect the suction gas and discharge gas lines and
make sure that they are stress-free. For a selection
of the vibration dampers see table 2, page 19.
Hardness
60 Shore
60 Shore
55 Shore
55 Shore
55 Shore
Inside diameter
d
i
19 mm
18 mm
10.1 mm
16.1 mm
22.4 mm
28 mm
Outside dia-
meter d
a
25.4 mm
Swagelok
14 mm
22 mm
30 mm
Swagelok
19