1. Furnish and install, where shown on the drawings a prefabricated duplex tank mounted high efficiency dry claw vacuum system model 1DCB7.5S120 as manufactured by EMSE Corporation, Fairfield, NJ (1-800-935-EMSE).
2. The unit furnished shall be a standard catalog item of the supplier regularly engaged in the business of providing packaged systems for hospitals and laboratories and shall meet and exceed the requirements of NFPA 99.
3. The package shall include two high efficiency dry claw vacuum pumps and associated equipment, one ASME tank and one duplex control panel. The only field connections required will be system intake, exhaust and power connection at the control panel. All components shall be completely pre-piped and pre-wired to single-point service connections. All interconnecting piping and wiring shall be completed and operationally tested prior to shipment. Provide liquid tight conduit, fittings and junction boxes for all control and power wiring.
4. The vacuum pumps shall be of the continuous duty, high efficiency, oil-less and frictionless compression claw type design, equipped with intake filters and exhaust mufflers, driven by 3 phase, 60 cycle, NEMA C-Face motors.
5. The pumps shall not have wearable vanes and shall not require water for operation. The maintenance shall be limited to annual bearing greasing. Less energy and maintenance efficient systems will not be considered.
6. Each vacuum pump shall be driven by a ____ HP, 3 phase, 60 cycle, ______ volt, 1750 RPM, TEFC NEMA C-face motor. Each pump shall have a capacity of ____SCFM at 19 “HG.
7. The system shall include the following accessories for each pump: inlet check valve, inlet isolation valve, vacuum control switch, integral inlet filter, exhaust muffler and vacuum relief valve. Provide flexible connectors on inlet and exhaust of each pump, exhaust tee with union, drip-leg with cock valve as well as copper tubing with shut-off cock for gauge and vacuum switches.
8. The system shall include a 120 gallon vacuum storage tank of ASME construction. The tank shall be suspended between the heavy duty base supports, so it is isolated from the weight of the vacuum pumps. It shall be rated for full vacuum service and shall be equipped with a valved by-pass, vacuum gauge and manual tank drain.

9. The inside of the tank shall be coated for rust protection with a two component coating which provides a hard, durable lining.
10. Provide vibration mounting per NFPA 99.
11. The system shall include a UL listed control panel in a NEMA 12 enclosure with the following accessories for each pump:
a. Externally operable circuit breaker with door interlock, control circuit transformer with fused primary and secondary coils, H-O-A switch, magnetic starter with 3 leg overload protection, hour meter, motor running light and minimum run timer to prevent short cycle operation.
b. Provide the panel with a multiple position selector switch for selection of normal operation (automatic alternation) or manual selection of lead and lag pumps if one of the pumps is taken out of service due to scheduled maintenance.
c. Provide audible and visual local alarm (complete with indicating lights and individual sets of auxiliary contacts wired to the terminal strip for remote alarm indication) for the following: vacuum pump thermal malfunction and reserve vacuum pump in use.
d. Provide manual reset for thermal malfunction shut-down. All control and alarm functions shall remain energized while any vacuum pump in the system remains electrically on-line. The lag vacuum pump shall be able to start automatically if the lead vacuum pump fails to operate.
12. The vacuum system shall be guaranteed in writing by the manufacturer for a period of 12 months from the date of start-up or 18 months from the date of shipment (whichever comes first) against defects in design, materials, or construction.
13. The service of a factory trained representative shall be made available at the jobsite to check installation, start-up and instruct operating personnel in the proper operation and maintenance.

Specification Sheet


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