Start-Up Procedure - Hertz HDD Series Instruction Manual

OPERATION
➢ Pressure Sensor: It electronically converts the pressure data into the analog signal, and
communicates to the control module.
➢ Temperature Sensor: It electronically converts the temperature data into the analog signal, and
communicates to the control module.
➢ PTC: It is embedded between the motor windings. It stops the compressor when the windings are
over heated and prevents the motor windings from burning.
➢ Pressure Switch: The safety pressure switch provides security by stopping the compressor in case
that the internal pressure exceeds the value set for any reason.
7.3

Start-up Procedure

➢ Check the power and air connections before starting up the compressor.
➢ Check the internal parts and connections of the compressor. Be sure that it was not damaged in
transit.
➢ Be sure that the cooling air inlet and outlet of the compressor are not closed at all. Do not cover the
compressor by cloth, nylon, etc. If covered, do not attempt starting up the compressor before
removing the cover.
➢ Inside the power board of the compressor takes place a "phase control relay" that continuously
controls the power phases. If you connect the phases in wrong order or there is any voltage
imbalance or lack of connection, the phase control unit would not allow the compressor to start. You
will see a visual sign of phase error on the control panel display. In case of the reverse connection of
phase ends,
connections of the compressor mains line. If there is a phase failure or imbalance, the problem is
related to the mains network, so that you should report it to the authorized electrical staff or the
competent authorities.
➢ After completion of the compressor power and air installation works, call the authorized service for
start-up. The service staff will perform overall checks, commission the compressor, and provide
useful information on the system and compressor maintenance.
➢ Check oil level. Transparent hose is connected on the separator tank body to easily monitor the oil
level. Check the oil level when the compressor is in stop mode. The oil level may change in the
course of operation.
➢ If the oil level is low, filled it to full line.
cut the power
45
and reverse the two phase cable