7/28/2019 Casestudy16 Gorsline Building Preserve History

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The 200-year-old Gorsline Building in Rochester, NY, originally a hydro-powered fl our mill, w as des-tined to become a high-tech office building if it s historic integrity and aesthetics could be preservedon a tight budget. A cost-effecti ve HVAC system w as needed that could meet the buildings unusualmulti-zone needs and comply wi th stringent visual and acoustical restrictions. Construction could notcompromise the architectural int egrity of the historic structure, and the ow ner w anted to preserve themany windows that would afford tenants natural light and views of the adjacent waterfalls.

Carrier w as able to off er a unique solution which met all requirements, saving a total of $175,000 including instal led costs and a 20% reduct ion in util it y expenses. A Carrier AQUAZONETM water sourceheat pump system w as chosen for its multi ple-zone diversity and quiet operation. M ajor aesthetic andcost barriers were overcome by eliminating the need for outdoor cooling towers and condensing units.The biggest financial gain came from the mechanical contractors initial suggestion that an existingw ater chase running through the buildi ng be used to carry river w ater for heat rejection. Carriercontrols ensured precise regulation of the entire system, adding to its economical operation.

Unique Solution Preserves History and Saves

$175,000 in Installed and Operating Costs

Carrier, Kenron Industrial Air Conditioning, Inc. and Pathfinder Engineers worked togetherto develop a unique solution that m et the unusual requirements and cut project costs.

Case Study Gorsline BuildingCase Study Gorsline Building

AIRSIDE/APPLIED/CONTROLS/SERVICE/ SPECIAL SOLUTION/TOTAL SYSTEM/UNITARY

EDUCATION/HEALTH CARE/LODGING/MANUFACTURING/OFFICEBUILDING/RETAIL/SPECIAL

Project Objectives

SolutionCost Comparison

7/28/2019 Casestudy16 Gorsline Building Preserve History

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The Gorsline Building in Rochester, NY, originally a hydro-powered flour mil l, is situat ed adjacent t o HighFalls on the Genesee River a scenic spot that draw s many tourists each year, and is a popular site foroutdoor public events. Ben Kendig, High Falls Development, the ow ner of the 200-year-old historiclandmark, planned to create a unique office building, where tenant s could enjoy natural l ighting andbeaut iful views.

The budget w as extremely t ight, but there were several potentially costly restrictions on the project. Thebuildings architectural integrity and the aesthetics of t he surrounding property had to be preserved, and thepublic space shielded from noise. This meant that any outdoor components w ould need visual and acousticbarriers. Sound levels inside the building had to be below NC-30. The buildings stone and mortar con-struction made coring for ductwork impossible in many areas. As for the interior, the long, narrow buildingw as broken up into multiple zones whose heating and cooling needs could vary widely.

A Carrier AQUAZONETM w ater source heat pump system controlled wit h the Carrier Comfort N etw ork (CCN)w as the best choice to meet the diversity of needs. But a packaged fluid cooler w ould be needed for heatrejection. Not only w ould this exceed the project budget, but f inding a location for it was problematic. Anengineering and financial breakthrough w as achieved w hen mechanical contractor Kenrons president, RonM aier, suggested using an existing wat er chase to instead run river wat er through the building forheat rejection.

This creative solution saved a total of $175,000 on installed equipment costs. In addition to the heat rejec-tion solution, outdoor components w ere eliminated, as w ell as the costs to aesthetically and acousticallyenhance them. And the Carrier direct digital controls (DDC), w ith non-proprietary protocols, w ere easilyprogrammed by Kenron personnel, w ith no need for an outside controls contractor. Not only is the Carrier

system extremely quiet, but it operates more economically than competit ive products, and is estimated tosave over 20% in uti l i ty costs.

The project presented many unique challenges, said Tim Goetzman, Carrier Enterprises sales engineer. Ittook several brainstorming sessions to determine t he best system for t he job, and one very big idea to makei t al l w ork wi thin the budget.

Project Synopsis

Carriers non-proprietarycontrols made it easy forus to install and program

the units w ithout the needfor an outside controls

contractor. The processwas excellent for us andfor the budget. W ith theinstalled equipment and

operating cost savings, andthe low visual and acousti-cal impact, t he advantages

of going w ith Carrier justmounted. The decision was

easy and the systemw orks extremely w ell.

Ron M aier,

president,Kenron Industrial AirConditi oning, Inc

200 0 Car ri er Corpo rat ion 09/ 00 811- 1003

Case Study Gorsline Building

AIRSIDE/APPLIED/CONTROLS/SERVICE/ SPECIAL SOLUTION /TOTAL SYSTEM/UNITARY

EDUCATION/HEALTH CARE/LODGING/MANUFACTURING/ OFFICEBUILDING /RETAIL/SPECIAL

For more information, contact your nearest Carrier Representative, call 1.800.CARRIER or visit our web site at www.carrier.com

Project Summary

Location: Rochester, NY

Building Age: 200 years

Project Type: Retrofit

Building Type/Size:Stone and m ortar; seven stories;50,000 sq. ft.

Building Usage: Offices

Objectives: Provide multi-zoneheating/ cooling on tight budget;

preserve historic building int egri-ty/aesthet ics; quiet operation

Major Decision Drivers:Cost; aesthetic and acousticimpact; non-proprietary controls

Design Considerations:Historic/tourist restrictions; eco-nomic w ater supply; multi-zone,open space plan with differingconditions

Total Cooling (tons): 104

HVAC Equipment: 13 model50HQA horizontal w ater sourceheat pumps w/ Complete Pluscontrol boards; model CC6400loop w ater controller, usingCCN and Comf ortW ORKS.

Unique Features: Used origi-nal w ater chase; historic buildingwith challenging configuration

Project Cost Range:$100,000 to $500,000

Installation Date: September,2000

Consulting Engineer:Pathfinder Engineers

Contractor: Kenron IndustrialAir Conditioning, Inc.

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