56
CHAPTER 4: OPERATION
087-0067 REV A
SCOTT SAFETY
guidelines or requirements of your organization. Exposure to high sound levels may
cause temporary or permanent hearing loss in some individuals.
Caution: Verify the correct compressor rotation before operation. Rotation should be
counterclockwise when facing the compressor fan. See the arrows on the compressor
belt guard. If the rotation is incorrect, do not use the power source until the phasing
has been modified by a certified electrical technician. After modification, recheck the
rotation.
1
Turn on the external power source (wall mounted switch).
2
Logon on the system via the HMI.
3
Select either operational mode: Automatic or Manual.
•
Automatic Mode - This is the recommended mode for on site operation when a
constant supply of compressed air is needed. In the mode, the unit automatically
restarts when system pressure drops about 6200psi below the maximum pressure.
•
Manual Mode - This mode is used for a single compression cycle. In this mode, the
unit brings the ASME storage cylinders up to maximum system pressure, but does
not automatically restart as the pressure is depleted. The unit must be restarted
when storage pressure has dropped below a usable level.
4
For normal operations, select Automatic.
The compressor ships from the factory with specific configurable parameters set to
defaults for normal operations.
5
During normal operations, the compressor monitors these specific parameters to
ensure proper operations. There are numerous items, and include: discharge
temperature, CO concentration, DP level, oil level, each stage pressure, and more.
Additionally the HMI provides helpful items for the operator that include: Alerts,
Information and Checklists. See
“Using the Compressor HMI” on page 25.
6
Depending on the compressor model, continue to monitor the unit during
operations either using the HMI or the analog gauges, with special attention to
compressor pressure and storage pressure.
7
Ensure that the Air Flow that passes over both the DP and CO sensors are
adequate. This ensures that the sensors reading are accurate. This should be done,
when the system pressure for the 5th Stage reaches about 2500psi. To make an
adjustment, simply turn the Air Flow On/Off Knob as needed.
The compressor automatically activates a fifteen (15) second drain cycle at regular
intervals to remove moisture. However, a manual fifteen second drain cycle may be
activated at any time by pressing the drain button on the HMI. Sometimes, it is useful
to activate a Manual drain cycle to verify that the moisture separators are operating
properly. Once activated, check the HMI gauges to verify that they all drop pressure
and recover pressure simultaneously.
8
When the system reaches maximum pressure, the compressor runs a cool down
cycle for two (2) minutes. During this time, the compressor runs unloaded while
draining the moisture separators, and cooling down the compressor stages. After
Summary of Contents for HushAir Connect 7500
Page 1: ...User Guide 087 0067 Rev A HushAir Connect 7500 COMPRESSOR SYSTEM ...
Page 2: ......
Page 3: ...HushAir Connect 7500 User Guide COMPRESSOR SYSTEM 087 0067 Rev A ...
Page 8: ...IV CONTENTS 087 0067 REV A SCOTT SAFETY ...
Page 12: ...X LIST OF TABLES 087 0067 REV A SCOTT SAFETY ...
Page 42: ...20 CHAPTER 2 INSTALLATION 087 0067 REV A SCOTT SAFETY ...
Page 73: ...Configuring the System 51 SCOTT SAFETY 087 0067 REV A Figure 27 Override Status Screen ...
Page 106: ...84 CHAPTER 5 MAINTENANCE 087 0067 REV A SCOTT SAFETY Figure 48 Oil Drain Location 3 1 2 ...
Page 112: ...90 APPENDIX A SPECIFICATIONS 087 0067 REV A SCOTT SAFETY ...
Page 119: ......
