
At a Glance
CUSTOMER
Town of Amherst–Pump #4 - Well House
LOCATION
Amherst, Massachusetts
CHALLENGE
Prevent water system failures leading to water shortages during an outage
SOLUTIONS
Rehlko diesel generator
Rehlko Decision-Maker® controller
Rehlko KSS-AMTB-0400S automatic transfer switch
Rehlko block heater
PRIMARY CHOICE FACTORS
Rehlko brand’s reputation for quality and reliability, and prior experience with Rehlko generators
Note: Kohler Energy is now Rehlko. The products shown were installed under the KOHLER brand.
Background
Amherst is a college town in Hampshire County, Massachusetts, with a population of 37,819 residents. It is home to Amherst College, Hampshire College, and the University of Massachusetts at Amherst. Notable historical figures that lived in Amherst include poets, Emily Dickinson and Robert Frost, and Noah Webster, who wrote An American Dictionary of the English Language.
Though the local population is relatively small, the influx of students puts a significant load on the town’s infrastructure, including the water system. A power outage could be catastrophic because it could lead to water shortages which, in turn, could negatively affect the health of residents and students alike.
Challenge
Facing many standby power solutions upgrade and replacement projects over the next few years, the Amherst Maintenance and Electrical Departments wanted to make the entire procurement process as efficient as possible while ensuring a competitive price. They also wanted emergency standby products that were reliable, given extreme winter conditions.
Another primary challenge associated with the Pump #4 Well House project was sizing the generator correctly. The 200-hp pump would require significant standby power for continuous operation. For guidance, the Town of Amherst turned to Sean Hall, Sales Engineer, at Kinsley Power Systems, Rehlko's authorized distributor for the Northeast. Founded in 1964 and headquartered in East Granby, Connecticut, Kinsley Power Systems is an energy solutions provider specializing in working collaboratively with customers to ensure project success. The Town of Amherst has relied on Kinsley Power Systems for other projects.

Rehlko's KSS-AMTB-0400S automatic transfer switch for Pump #4 Well House in the Town of Amherst

Generator at the Pump #4 Well House in the Town of Amherst
Solution
The emergency standby solution for the pump house site includes a Rehlko generator featuring the Rehlko pilot-excited, permanent-magnet alternator for excellent voltage response and short-circuit capability. The diesel-fueled generator also features a Rehlko Decision-Maker® controller for one-source system integration and remote communication. The controller provides metering, control, and diagnostics for the generator and features a digital display and keypad for easy access to data. An integrated voltage regulator maintains consistent voltage output and a built-in alternator-overload-protection circuit ensures safe generator operation.
The solution also features a Rehlko KSS-AMTB-0400S open-transition, automatic transfer switch, which provides fast, automatic changeovers from grid to generator. It is enclosed in a NEMA 12 enclosure and features front-accessible contacts for easy inspection.
To protect the generator from the elements, the integrated solution also includes a UL 2200-listed, steel weather enclosure, designed to meet a 150- mph wind load rating. It also features fade-, scratch-, and corrosion-resistant Rehlko Power Armor PlusTM automotive-grade textured finish. The enclosure features easily accessible doors and panels to facilitate service. A 2500 W, 90/120 V, 1 Ph block heater and a 10-amp battery charger ensure reliable operation during the winter months.
The generator also features a Rehlko-manufactured, 48-hour, UL 142 integral subbase, state-fuel tank with a 1333-gallon capacity. It offers continuous operation until grid power is restored or refueling needed. The tank features Power Armor Plus textured epoxy-based rubberized coating which prevents corrosion. It is also UV-resistant. Both the inner and outer tanks have emergency relief vents. The subbase tank also features an environmentally-friendly secondary containment tank surrounding the primary tank, meeting state requirements.
To facilitate the procurement process, Hall relied on Rehlko as a Sourcewell vendor. Sourcewell is a cooperative purchasing organization for educational, governmental, and nonprofit that makes purchasing more efficient. Amherst’s membership to Sourcewell gave full access, via Kinsley Power Systems, to Rehlko's complete line of power generation solutions, saving time, reducing administrative costs, controlling product costs, and managing risk. According to Hall, “Sourcewell makes it easy for our customers to feel confident in their purchasing decisions. It offers a streamlined and efficient process for purchasing emergency power solutions and related equipment that has been pre-bid and available with contract pricing” said Hall.
The solution for Amherst Well House includes:
For the Town of Amherst’s Pump #4 Well House, the project includes a Rehlko diesel generator with a Rehlko Decision-Maker controller and a Rehlko KSS open-transition transfer switch. A UL 2200-listed steel weather enclosure, featuring the fade-, scratch-, and corrosion-resistant Rehlko Power Armor Plus automotive-grade textured finish.

Enclosure

Controllers

Automatic Transfer Switch ATS KSS
Results
The integrated emergency standby power solution for the pump house has performed exceptionally well. Amherst’s electrical and maintenance staff know from experience they can rely on Rehlko products to perform reliably, every time. Further, Sourcewell helped the town make the entire purchasing process easy and fast.


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