TruSteel AutoVap30, Руководство пользователя

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TruSteel AutoVap30 User Manual | | v. 1.9
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Make sure vacuum pressure is correct (4-5 psia)
Check heater temperature (180 deg. F to 193º F)
Check water flow rate is at least 10 GPM.
Flow Rate Issues
The AV30 controller will automatically adjust the feed pump Hz dependant on your set
feed PSI/GPH. Typically 30 GPH of ethanol will net a pump speed of 20 Hz. If the pump is
spinning at 40 Hz+ to achieve the same rate there is likely a clog in the system. (Refer to Feed
Overspeed Lockout to set failsafe parameters.) Inspect the check valve at the top of the pre-
heater, the inlet filter, and the spray tip for debris. Clean check valve with isopropyl or ethanol and
reassemble. The sprayer can be cleaned with any chemical compatible with 316 stainless to
dissolve particulates if necessary, ensure it is properly neutralized with water before reassembly.
If the problem persists, call TruSteel for further technical support.
Discharge Pumps not Draining
If the discharge pumps fail to remove the product or recovered solvent, first check they are being
called properly by visually inspecting the back of the motor. The fan should be spinning when
they are turned on. If not, refer to Aqua Sierra for diagnosis.
Ensure that the system is properly primed. See PRIME FEED PUMP section.
Ensure the system vacuum is no lower than 2 psia. Any lower than 2 psia will cause the
discharge pumps to "fight" against vacuum and can cause them to be compromised.
Lost Prime
Run the system to fill the evaporator and condenser sight glass to the center line and turn the
feed off. Close the vacuum valve (V3) and open gas ballast (V4) to let the system come up to
atmospheric pressure. Actuate the pumps by hand via manual override on the touch screen. The
material should start draining, if not, continue to check valve inspection.
Check Valve Inspection
If the pumps still fail to discharge, turn the system off and remove the check valve from the
discharge side, CV2 and/or CV3. Note that if there is liquid in the system it will slowly spill out,
the TruSteel maintenance kit has a Swagelok end cap to plug the pump after check valve
removal. Use appropriate materials to contain the spill. Visually inspect the valve for particulate
matter and blockages, using a small screwdriver or similar tool, push the valve and ensure the
action is smooth without any hold up. Clean the check valve in isopropyl or ethanol, followed by
water. Reattach the valve and drain the system at atmospheric pressure. If the problem persists,
contact TruSteel for further support.
APPENDIX
VACUUM/ELEVATION CHART