C6.2.24/0215-0515/E 9
3.2.2 Solenoid valve installation – General recommendations
The solenoid must be mounted vertically, within ± 15° of vertical. Horizontal mounting is not
permitted.
If a suction rotalock fitting is used, the threaded shipping plug in the rotalock fitting must be
removed prior to brazing in the vertical solenoid line.
The valve operation is directional. See Figures 13 & 14 below for inlet and outlet locations.
Do not restrict the line size coming from or leaving the solenoid. Use 3/8” soft drawn
copper.
Figure 10: Control v alv e without coil Figure 11: Control v alv e pipe connection
3.2.3 Solenoid valve installation – Tubing recommendations
IMPORTANT
This tube has been tested and qualified at 50 and 60 Hz operation for
running stresses and resonance in a single compressor lab environment.
However, in some compressor applications such as racks and transport
applications, the OEM is strongly advised to re-confirm the acceptability of
the tube when the compressor is subject to additional vibration inputs.
The tube from the solenoid to the suction, marked “A” (see Figure 12), should be as short as
possible (less than 7.5 cm). Dimensions for a typical tube going from the top of the compressor
are shown in Figures 13 & 14.
3.3 Copeland Scroll Digital compressors ZFD13KVE to ZFD25KVE with vapour
injection / wet vapour injection
The following injection systems can be used:
Wet vapour injection
(vapour + liquid injection)
Table 5
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