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10.16 ELECTRICAL CONNECTIONS
Avoid excessive shocks on the pins of the compressor. The force to insert the
terminals of the electrical components or supply line must be along the axis of
pins: transversal forces not aligned with the pins or moments exerted on the pins
can bend them or cause cracks in the glass insulation. These cracks can lead to
glass breaks, refrigerant/oil leakages and short circuits.
Avoid using the electrical components to get multiple connections on their
terminals: the excessive force necessary to fix all them together may damage
the components. If multiple connections are needed. use the terminal board (part
of CSR box) provided by Embraco for its compressors or other external terminal
boards (complying with the electrical safety standards) to be fix on the installation.
For other solutions, contact Embraco Technical Support team.
Position of electrical box in the application – it is mandatory to be in vertical
direction, to assure correct functionality of relay (see Figure
10.16).
WARNING
WARNING
WARNING
Figure
Electrical box position
10.17 SCREWS TIGHTENING TORQUE
The connection screws on CSR box, terminal board and plastic hermetic terminal are supplied with a clamping
torque of 1÷2Nm (10 ÷ 20 kgcm). The same torque is proposed to be used for their tightening when used.
Grounding screw M5x12 is assembled on compressor hermetic terminal with a tightening torque
1÷2Nm (10÷20 kgcm).
