Atlas Air Compressor Regulating system on SF Skid Tank-mounted Twin, Protecting the compressor

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Instruction book

1.4 Regulating system on SF Skid - Tank-mounted - Twin

The air net pressure is kept within limits by a pressure switch mounted in the cabinet below the control panel (Fig. 1.10). The switch is connected to the air outlet and electrically connected in the circuit of the drive motor. The switch opens and closes its contacts at pre-set pressures.

1Pressure gauge

2On/off switch

3Hourmeter

4Air pressure switch/circuit breaker

Fig. 1.10 Control panel SF Skid - Tank-mounted - Twin

When the contacts are closed, the circuit to the drive motor is made: the compressor is operating. The air output is maximum.

When the pressure reaches the pre-set maximum, the circuit to the drive motor is broken, causing the compressor to stop. The air output is stopped.

Protecting the compressor

The compressor will be shut down in case temperature switch (TSHH11-Fig. 2.7) trips.

Warning

Before carrying out any inspection or repair, stop the compressor, switch off the voltage, open the isolating switch and depressurize the compressor.

2920 1521 00

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Contents Instruction book No 1521 Registration code APC SF / 38Instruction book Skid Tank-mounted Twin Service warning message exists Leading Particulars General descriptionSF4 Skid Control panel Air outlet valve SF4 Tank-mounted SF8FF Multi Details of a compressor module on SF Tank-mounted Air flow Cooling and condensate drain systems FigRegulating system on SF Skid Tank-mounted Twin Protecting the compressorControlling the compressor Monitoring components subject to serviceRegulating system on SF Multi Automatic restart after voltage failureControl panel Fig Designation FunctionScroll keys 3-Fig Display keysOperating condition of a compressor module Tabulator key 4-FigSelecting a menu 13 Menu flow, SF MultiElectric cabinet on SF Multi 14 Electric cabinets, SF MultiCompressed air circuit Air dryer on SF Full-Feature FigRefrigerant circuit Installation Dimension drawings Figs .1 up to9820 4054 00/1 Dimension drawing, SF 6-8 Multi Dimension drawing, SF 11-15 Multi Instruction book Installation proposal Fig Instruction book General Electrical connectionsConnections Skid Tank-mounted Twin SF Multi TSHH20 Pictographs PictographsInitial start-up Operating InstructionsStarting During operation Taking out of operation at end of compressor service lifeStopping Before carrying out any maintenance or repair MaintenancePreventive maintenance schedule for the compressor Service plans on SF MultiMonthly YearlyBelt exchange/tensioning Fig Adjustments and Servicing ProceduresAir filter 1-Figs .7/1.8 CoolersTesting Safety valveOperating Problem Solving Electric cable size for SF1-8 Principal DataElectric cable size for SF 6-15 Multi Overload relays for SF1-8 Overload relays for SF6-15 MultiReference conditions/limitations Main fuses for SF1-8Main fuses for SF6-15 Multi Reference conditions10 SF1-4 100 psi 60 Hz SF1-4 8bar 50 HzSF2-4 10 bar 50 Hz 11 SF2-4 145 psi 60 Hz13 SF6-15 Multi 10 bar 50 Hz 12 SF6-15 Multi 8 bar 50 Hz14 SF6-15 Multi 100 psi 60 Hz SF11 SF15 125 psi 15 SF6-15 Multi 125 psi 60 Hz16 SF6-15 Multi 145 psi 60 Hz SF11 SF15 145 psiRegulator Functions for SF Multi Menu-driven control programsFunction of control programs Program/Function Description Main screenLine Indicates Remarks Element status screen, typical exampleQuick look at actual compressor status ProcedureCalling up other menus No message exists Status data menuShut-down message exists Shut-down reset Service warning message exists Measured data menuCounters menu Test menuModify parameters menu Modifying parametersModifying the pressure bands Modifying protection settings Checking protections for compressor modulesModifying service plans Service plansResulting service actions to be carried out Programmed service plan intervals Service plans IntervalsService actions according to Programming start/stop/pressure band commands Programming Clock functionInstruction book To activate/deactivate the timer To modify a commandInstruction book Adding a command between two existing commands To delete commandsDeleting all commands related to a specific day Configuration menuDeleting all commands Deleting a specific start/stop/pressure band commandService menu Service plans ABI Saved data menu Programmable settings Regulation settings Minimum Nominal Maximum SettingService settings Minimum Nominal Maximum Setting Conversion List of SI Units Into US/BRITISH UnitsPart number Description PED Class Components subject to 97/23/EC Pressure Equipment DirectiveOverall Rating Instruction book Instruction book Wnership Data Safety Preca Utions