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Standard 770 Duplex System with Horizontal Pumps
Standard 790 Packaged System
MODELS 770 and 790
BOOSTER SYSTEMS
INSTRUCTION AND INSTALLATION MANUAL
NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible
party who maintains the system.
Part # A-03-255 | © 2012 Pentair Ltd. | 12/01/12
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Summary of Contents for Pentair Aurora 770
- Page 1 INSTRUCTION AND INSTALLATION MANUAL NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible party who maintains the system. Part # A-03-255 | © 2012 Pentair Ltd. | 12/01/12...
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Page 2: Booster Systems
MODELS 770, 790 BOOSTER SYSTEMS INSTRUCTION AND INSTALLATION MANUAL CALIFORNIA PROPOSITION 65 WARNING: ATTENTION: SAFETY WARNINGS: MODELS 770, 790 Read and understand all warnings before installation or servic- This product and related accessories BOOSTER SYSTEMS contain chemicals known to the State of California to ing pump. - Page 3 MODELS 770-790 needed for the field condition. (See Controller Operation, Appendix A) With the lead pump running if the system pressure continues to fall due to flow demands the lag pump will start and run with the When flow demands increase beyond the pump design point the lead pump until the system demand is satisfied and the minimum system pressure will begin to decrease.
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Page 4: Optional Systems
APPENDIX A (continued) MODELS 770-790 ally after a minimum running interval. A low pressure alarm the overload element. Briefly, the Overload Relay is sized to and shutdown is included in standard systems to protect the allow initial starting currents while protecting the motor from pump(s) form running dry or cavitating on absent or low inlet excessive long starting currents or excessive running currents. - Page 5 APPENDIX A (continued) MODELS 770-790 Pressure switch (PS-1). When the pressure drops to less than motor actual running time. the trip setting of this pressure switch, it's contacts close. This signals the PLC that the condition has occurred. The PLC acti- Alternator Overlap Time: When one or more pumps are not vates the Low Suction Audible Alarm.
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Page 6: Service And Assistance
APPENDIX A (continued) MODELS 770-790 REPLACEMENT PARTS LIST SYMBOL PART NO. DESCRIPTION NOTES 302400 Disconnect Switch, 600 Vac, 30/40 Amp (Internal Switch only) 302401 Disconnect Switch, 600 Vac, 60/80 Amp (Internal Switch only) 302402 Disconnect Switch, 600 Vac, 100 Amp (Internal Switch only) 400939 Disconnect Switch Handle Operator only,... - Page 7 APPENDIX A (continued) MODELS 770-790 Notes: Enclosure: 16 Guage Sheet Steel Finish: Grey Baked Enamel LISTED Application: For Indoor Use. NEMA 1 Mounting: Wall Mount Max. Shipping Weight: 42 lbs. (20kg)
- Page 8 APPENDIX A (continued) MODELS 770-790 OL-1 MOTOR-1 To 3Ø AC Supply (Branch MTR-1 Ck t Protection Req'd) OL-2 MOTOR-2 MTR-2 (13) (14) 480Vac XFMR-1 120Vac (17) (16) POWER (16) (17) AVAILABLE PUMP 1 (17) (18) (16) RUNNING PUMP 2 (19) (17) (16) RUNNING...
- Page 9 APPENDIX A (continued) MODELS 770-790 Notes: Enclosure: 16 Guage Sheet Steel Finish: Grey Baked Enamel Application: For Indoor Use. NEMA 1 Mounting: Wall Mount Max. Shipping Weight: 42 lbs. (20kg) LISTED...
- Page 10 APPENDIX A (continued) MODELS 770-790 OL-2 MOTOR-2 To 3Ø AC Supply (Branch MTR-2 Ck t Protection Req'd) 35 . 41 OL-1 OL-3 MOTOR-1 MOTOR-3 MTR-1 MTR-3 (13) (14) 480Vac XFMR-1 120Vac (17) (16) POWER (16) (17) AVAILABLE (17) (18) PUMP 1 (16) RUNNING PUMP 2...
- Page 11 APPENDIX A (continued) MODELS 770-790 Option A HIGH SYSTEM PRESSURE SWITCH, LIGHT AND ALARM PS-5 (50) (20) (16) (49) OUTPUT INPUT Option B HIGH SUCTION PRESSURE SWITCH, LIGHT AND ALARM PS-2 (39) (16) (20) (36) OUTPUT INPUT Option C LOW SYSTEM PRESSURE SWITCH, LIGHT AND ALARM PS-3 (51) (20)
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Page 12: Elapsed Time Meter
APPENDIX A (continued) MODELS 770-790 Option G CIRCUIT BREAKERS IN PLACE OF LINE FUSES To 3Ø AC Supply (Branch Ckt TO 2M Protection Req'd) CB1 REPLACES 1F - 3F. CB2 REPLACES 4F - 6F. TO 3M TO 1M CB3 REPLACES 10F - 12F. CB3 NOT PROVIDED ON DUPLEX CONTROLLERS. -
Page 13: Field Adjustments
APPENDIX B MODELS 770-790 STOCK NO. OF PRESSURE PRESSURE within their adjustable range. They are designed for applications MODEL CONTACTS RANGE CONNECTION sensing air, water or any fluid or gas not harmful to nylon or sil- NYLON 1/2” icone. IPS40-1 9000104 10-175 PSI NPT MALE... -
Page 14: Functional Description
APPENDIX C MODELS 770-790 Start-Up and Adjustment Close upstream and downstream isolation valves. VALVE FUNCTION Open any ball valves or isolation cocks in the control tubing. -REDUCE HIGHER INLET PRESSURE TO CONSTANT LOWER OUTLET PRESSURE (ADJUSTABLE). Failure to open these will prevent the valve from functioning -CLOSE WHEN OUTLET/DOWNSTREAM PRESSURE EXCEEDS INLET/UPSTREAM PRESSURE. - Page 15 APPENDIX C (continued) MODELS 770-790 Piping Schemes b. Control circuit isolation ball valves can be used to isolate •2-way (T to cover) valve cover to allow for diaphragm condition check without -Supply Line removing the cover. *Restriction in line i. Close inlet ball valve *Location of Speed Control ii.
- Page 16 APPENDIX D MODELS 770-790 with independent set and re-set points which are adjustable throughout the entire operating range of the switch. The minimum ADJUSTABLE deadband (minimum span between set and reset points) may be OPERATIING MINIMUM PROOF FACTORY RANGE DEAD BAND. PRESSURE SETTING obtained at any point in the operating range of the switch.
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Page 20: Warranty
WARRANTY Seller warrants equipment (and its component parts) of its own manufacture against defects in materials and workmanship under normal use and service for one (1) year from the date of installation or start-up, or for eighteen (18) months after the date of shipment, whichever occurs first.
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