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8 - CONTENTS OF THE MENUS
a) Start-up procedure
- The test function will only be authorised to run if the unit is shut down.
- The circuit must be available (no forced shut-down of the 2 compressors; no fault)
- The normal HP test can only be performed from the local control console (not from the remote control console or from a CMS).
- The HP test is performed with just 1 compressor.
- The software shut-down threshold is 43 bar.
- To start the HP test, with level 3 access, go into the "HP TEST CIRCUIT x" menu and confirm with "YES".
The sequence then starts automatically:
• The evaporator pump starts followed by 1 compressor.
• The On/Off LED flashes 75/25.
• The condenser pump stops.
• When the flow switch is closed, the available compressors start up.
• The On/Off key is disabled for the duration of the HP test.
• The remote On/Off function is also disabled.
b) End of the procedure
The HP test stops once one of the following conditions is met:
- It has been interrupted by setting the parameter "HP_TEST" to NO.
- The HP pressure switch is open, in which case, the HP test is confirmed.
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