E900H User Manual 5: Operation
02250203-986 R03
Subject to EAR, ECCN EAR99 and related export control restrictions. 41
10. Stop the compressor per shutdown proce-
dure and check fluid level.
5.4 Normal start-up procedure
1. Place machine in level, suitable area and
chock the wheels.
2. Check the compressor fluid level. Reference
Section 4.1.
3. Verify the electrical connections are secure.
4. Turn on disconnect at machine and press the
start button.
5. Monitor parameters on instrument panel.
5.5 Main motor heater
When the motor heater switch is in the ON position, the
motor heater will be activated until the switch is set to
OFF or the compressor starts.
In extremely wet environments, the motor heater should
b
e run for 2 hours prior to start of compressor.
The heater should run for 2 hours once a month when the
com
pressor is unused for an extended period of time.
Additionally, the heater should be run for 2 hours prior to
initial startup following an extended storage period.
5.6 Fan rotation switch
This switch controls the direction of rotation o the cooling
fan. the direction should be set to FORWARD in warm
weather. In cold weather, below 32°F (0°C), the fan can
operate in REVERSE. This will help to prevent freezing of
control lines as well as help to maintain the proper oper-
ating temperature of the compressor. Operating the fan in
REVERSE d
uring warm temperatures can cause high
operating temperatures and ultimately the shutdown of
the compressor.
5.7 Phase/voltage fault relay
This compressor is equipped with a phase/voltage relay
to detect incorrect phasing of incoming power or incorrect
supply voltage. Upon initial power-up, the indicator on the
control panel will be lit if the incoming power was con-
nected out of phase. Swap two of the cables to correct
the p
hasing.
If the relay is tripped during operation, proper operating
volt
age and connections should be checked prior to
restarting compressor.
Even with the fault indicator lit upon initial power up, the
mac
hine will attempt to start for approximately 10 sec-
onds. This is a delay feature provided to allow the com-
pressor to overcome voltage drops upon starting. If after
10 s
econds, the voltage or phase fault is still present, the
machine will shut down.
CAUTION
Allow 5 minutes between starts for oil foam to
subside and the motor to cool.
CAUTION
The receiver tank should be drained of conden-
sate on a regular basis. The control line filter
should be drained of condensate on a weekly
basis.
CAUTION
The main motor heater will be switched off once
the motor is started.
CAUTION
If the machine is energized and the motor heater
switch is ON, the heater will be energized as
long as the machine is not running and the E-
Stop is not depressed.
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