Section 5: Operation; General; Purpose Of Controls - Sullair E900H User Manual

E900H User Manual

5.1 General

While Sullair has built into this compressor a comprehen-
sive array of controls and indicators to assure you that it
is operating properly, you will want to recognize and inter-
pret the readings which will call for service or indicate the

5.2 Purpose of controls

Control or indicator
START / STOP switch
Sump pressure gauge
Hour meter
Discharge temperature gauge
Discharge temperature switch &
high discharge temperature lamp
Separator differential pressure
gauge
Fluid filter differential pressure
gauge
Emergency stop / reset switch
Power / run indicators
Main motor / fan motor overload
indicator
Phase / voltage fault light
Fan forward/reverse switch
Motor heater switch
Section 5
Operation
Purpose
Utilized to start and stop the compressor. Upon stopping, the compres-
sor will continue to run for a short time in order to relieve sump pressure.
Displays receiver tank pressure of the compressor during all phases of
operation.
Displays accumulated run time of the compressor.
Displays temperature at the compressor discharge.
If the high operating temperature limit of 250°F (121°C) is exceeded, the
compressor will be stopped and the High Discharge Temperature lamp
lit. After addressing the cause of the fault, it is reset by depressing and
re-setting the emergency stop button.
Displays the pressure difference between the wet and high side of the
separator element. Refer to Section 6: Maintenance for recommended
service intervals.
Displays the pressure difference between the inlet and outlet of the fluid
filter. Refer to Section 6: Maintenance for recommended service inter-
vals.
When depressed, the compressor is stopped. Additionally when
depressed and reset, the High Temperature Alarm is reset.
The power indicator is lit when power is connected to the machine and
the main disconnect is closed. The run indicator is lit once the compres-
sor is started.
These indicators are lit if the motors are overloaded. Once the fault is
addressed and the motor overload relays are reset, the indicators will be
reset. Refer to Section 7: Troubleshooting for potential causes.
This indicator is lit when the phase/voltage relay detects incorrect phas-
ing or a voltage fault. See Section 5.7 for details.
This switch controls the rotation direction of the cooling fan. See Section
5.6 for details.
This switch activates the internal heaters in the main motor. See Section
5.5 for details.
02250203-986 R03
Subject to EAR, ECCN EAR99 and related export control restrictions.
beginning of a malfunction. Before starting your Sullair
compressor, read this section thoroughly and familiarize
yourself with the controls and indicators—their purpose,
location and use.
5: Operation
39