Mechanical Connections; Connection Details; Design Compressor Mounting - Danfoss CH290 Application Manual

Scroll compressors, CH290 and CH485 | Mechanical connections

Mechanical connections

Connection Details

Figure 9: Brazed version
Table 8: Suction and Discharge connections
Model
CH290
CH290
CH485
CH485

Design compressor mounting

Compressors CH290 and 485 dedicated for parallel (versions AA and AB) mounting come delivered with rigid
mounting spacers for parallel mounting.
CH290 and CH485 used in single applications, are delivered with flexible grommets. The grommets must be
compressed until contact between the flat washer and the steel mounting sleeve is established. The grommets
attenuate to a great extent the transmission of compressor vibrations to the base frame.
The required bolt size for the CH290 and 485 compressors is HM8-55. This bolt must be tightened to a torque of 21
Nm.
Figure 10: Manifoldable compressor with rigid spacers
1
1 Rigid spacers
2 HM 8 bolt
3 Lock washer
4 Flat washer
5 Rigid spacers
6 Nut
© Danfoss | Climate Solutions | 2022.09
Suction / Discharge
Suction
Discharge
Suction
Discharge
Figure 11: Rigid spacers
CC-0481
Brazed - Tube ODF
1"5/8
1"1/8
1"5/8
1"3/8
2
3
6
4
5
6
AB236986442743en-000501 | 20