Section 4
START---UP PROCEDURES
19
4.1 MOTOR ROTATION CHECK
After the electrical installation has been done, it is
necessary to check the direction of motor rotation.
S
ES---8 COMPRESSORS
Pull out the
EMERGENCY STOP
button and press
once, quickly and in succession, the
(START) I
and
(STOP) O
pads. This action will bump start
the motor for a veryshort time. When looking atthe
motor from the control panel side, view the cou-
pling by looking through the air inlet duct on the
lower side of the adapter fan housing. The cou-
pling should be turning clockwise. If the reversed
rotation isnoted, disconnect the power to the start-
er and exchange any two of the three power input
leads, then recheck rotation. A “Direction of Rota-
tion” decal is located on the motor and cooler
shroud toshow proper motor/compressor rotation.
S
ALL OTHER COMPRESSORS
Pull out the
EMERGENCY STOP
button and press
once,quicklyandinsuccession, the
(START) I
and
(STOP) O
pads. This action will bump start themo-
tor for a very short time. When looking at the motor
rear end, the driveline should be rotating in the di-
rection indicated by the “Direction of Rotation” de-
cal located on the top of the compressor/motor
adapter piece. If thereversed rotation is noted, dis-
connect the power to the starter and exchange any
two of the three power input leads, then re---check
rotation. A “Direction of Rotation” decal is located
on the top ofthe compressor/motor adaptor piece.
4.2 INITIAL START---UP PROCEDURE
The following procedure should be used to make
the initial start---up of the compressor.
1. Read the preceding pages of this manual thor-
oughly.
2. Jog motor to check for correct rotation of fan.
3. Be sure that all preparations and checks de-
scribed in the Installation Section have been
made.
4. Open the shut---off valve to the service line.
5. Check for possible leaks in piping.
7. Slowly close the shut---off valve to assure proper
nameplate pressure unload setting is correct.
The compressor will unload at nameplate pres-
sure. If adjustments are necessary, see Control
System Adjustments.
7. Observe the operating temperature. If the oper-
ating temperature exceeds 200
_
F(93
_
C), the
cooling system and installation environment
should be checked.
8. Open shut---off valve to the service line.
9. Reinspect the compressor for temperature and
leaks the following day.
4.3 SUBSEQUENT START---UP PROCEDURE
On subsequent start---ups, check that the proper
level is visible in the fluid level sight glass and sim-
plypress“
I
”formanual or“
”forautomatic opera-
tion. When the compressor is running, observe the
various parameter displays.
4.4 SHUTDOWN PROCEDURE
To shut the compressor down, push “
O
”pad.
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