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U.S. InstallsU.S. Installs

© 2005 Daikin ACSlide 2Presentation Title : Presenter Name : Date Page 2 © 2005 Daikin AC

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United States

VRV Installations

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Location Clarksville, TN Architect Violette Architecture Engineer WBW Engineering Sq Footage 7,000 s.f. Daikin VRV 32 tons VRV

BlueHole Lodge- Daikin VRV First Test Site 2001

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Before…

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During…

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Upper and lower floor storage as used mechanical space

During…

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Sq Footage 7,000 s.f. Daikin VRV 32 tons VRV

After…

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Owner Owensboro Christian Church Location Owensboro, KY Architect RBS Design Group Engineer Waldron, Batey & Wade Sq Ft 34,000 s.f. Daikin VRV 80 Tons

Family Life Center 2005 - Renovation of Gym / Wellness Addition

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Family Life Center Addition

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SECOND LEVELFIRST LEVEL

Wellness

Daycare/Classrooms

Lockers

Gym

Mech Track

Entrance FLOOR PLAN

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Owner Daviess Co. Board of Education Location Owensboro, KY Architect Collignon & Nunley Engineer WBW Engineering Sq Footage 10,000 s.f. Daikin VRV 32 Tons

Daviess Co. Learning Center 2005RenovationEducational

Facility

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Daviess County Learning Center

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NEW Christian County Elementary School

Hopkinsville, Kentucky

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Christian County Elementary School 2006

FLOOR PLAN

Features

Hopkinsville, Kentucky

Daikin KW study VRV vs Geothermal

Daikin VRV System 93,000 Sq. Ft. 350 Tons Heat Recovery 41 Outdoor Units 200 Indoor Units Advanced Controls Power KW monitoring Low running cost & Low Maintenance costs Daikin System saved 900k on total construction cost

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Indoor Unit

Outdoor Unit

Refrigerant

Piping

Typical Classroom LayoutDesign

Daikin VRV System (Heat Recovery)

Classrooms can Simultaneous Heat & Cool

Three (3) Classrooms per One (1) Outdoor Unit

Lower Background Noise (better speech intelligibility)

No Ductwork or Equip. platforms required

Easy & Fast Installation Superior Student comfort

Daikin VRV = True Energy Savings Christian County Elementary School 2006

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Christian County Elementary SchoolHopkinsville, Kentucky

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Owner Malcolm Bryant Corp Location Owensboro, KY Tenant RDI Architect RBS Design Group Engineer WBW Engineering Sq Footage 27,000 s.f. Daikin VRV 90 Tons

Radiology & Diagnostic Imaging 2004

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Year 2003 Owner Independence Bank Location Owensboro, KY Architect Collignon & Nunley Engineer WBW Engineering Contractor Ernie Davis & Sons Sq Ft 31,000 s.f. Daikin VRV 104 Tons

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Independence Bank

4th of July 2003

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Hilton Garden Inn, Richardson TX

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Hilton Garden Inn, Richardson TX

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Hilton Garden Inn, Richardson TX Equipment Overview:

4 Story Hotel made with ICF construction 153 Guest rooms featuring fir-down ducted model FXDQ Simplified controllers 3 I-Touch Controllers with web-enabled software FXSQ used in lobby and conference rooms 144 Tons of VRV Heat Pump & Heat Recovery Condensing units on the ground in 3 different pods AAON outside air unit used to introduce fresh air into the

hallways and commons area, which created a positive pressure in the guest rooms

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Installation Issues Inconsistent & Untrained HelpDon’t assume Contractor has remembered

everything from TrainingLeaks, wiring (power & communication)Trim charge was not calculated (VRV-II)Sufficient leak testing was not performedAllow for sufficient piping length after 90 (20”) and

40” after refnet to avoid turbulence and other piping guidelines – needed to design with headers

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Estimated Cost Savings $500/window, grill, PTAC sleeve savings $75/room drapes (weighted) savings Up to $1.80/sq ft rebates possible per The Federal Tax credit

program (includes envelope, lighting and HVAC) Electrical service requirement reduction possible from 7,500

amp to 3,000 amp, (includes the 30 amp PTAC circuit savings)

**Preliminary first cost: $725,000 or $5,034/ton (Installed, including AAON make-up air unit)

Uncalculated savings but feasible: Access space around the PTAC Air leakage Moisture control (total room remodel every 30 months) Noise abatement through the PTAC grill Condensate drain savings on PTAC’s

Hilton Garden Inn, Richardson TX

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Welcome to EnergyWise Structures___ The Home of Ultra Energy Efficient Engineering.htm The Hilton Garden Inn in Richardson, Texas with

86,401 square feet was engineered by EnergyWise and is saving over $6,000 per month!

As a new construction project, we implemented the complete EnergyWise program resulting in an energy tax credit of $1.80 per square foot in addition to engineering an ultra energy efficient, healthy hotel. Typical hotels of similar footprint in the chain are averaging $9,504 per month in heating and cooling. The EnergyWise guarantee not to exceed is just $3,456, a savings of over $6,000 every month!

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Staybridge Suites, Irving TX

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Staybridge Suites, Irving TXAt a Glance:

4 Story hotel with 100 guest rooms 100 9,000 BTU split systems 16 seer slim ducted indoors 30 tons of VRV for the common areas (17 indoor units) Two AAON units used for outside air

Opened late November

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Santa Fe A-Lofts Hotel, Dallas TX

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Santa Fe A-Lofts Hotel, Dallas TX

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Santa Fe A-Lofts Hotel, Dallas TX At a Glance:

10-story hotel – Engineered by Sam Toub Retrofit of an old warehouse used for Santa Fe Railway 338 tons Daikin VRV Heat Recovery for Guest Rooms 44 tons Daikin VRV Heat Pump for Common Areas 193 Guest rooms Concealed Ceiling Units (FXSQ) in each room FXSQ, FXFQ, FXHQ and FXAQ indoor units serving

common areas and meeting rooms Opening Date: July 2009

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Biddeford City Hall, Maine 2x 8 ton VRV + 1x 3- ton VRV-SPrimary Hot Water Coil Integration

2 x 8ton VRV H/P & 1 x 4ton VRV-s

Ambient temperature sensor (left)& thermostat tied in ABC terminals

Hot water coils connected with indoor units

Boiler system for hot water coils and other radiator heaters

Zone valve for hot water coil controlled

by KRP1B

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New Construction (interior is under construction) Installed the VRV-s system as both cooling and heating

systems To save energy cost, the VRV heat pump system will be used

as long as possible. Fuel cost is getting higher.• Ambient thermostat that is set setpoint as 20F will lockout

heat pump• It also kick on heat pump with a suitable differential (+10F?)

The zone valve for the hot water coil is controlled by the KRP1B adapter that is installed in the indoor unit.

• While heat pump is locked out, the valve is controlled as a primary heater. (+/- 1F basis)

• Otherwise in the heating mode, it is controlled as an AUX heater. (7.2F differential basis)

• 7.2F basis might work well if heat pump lock out temperature, 20F, is suitable for this project; this means that the heat pump can afford to heat up 7.2F temperature differences.

The end switch, it will be on when the valve fully opens, on the zone valve kicks on the boiler. And boiler circulate the hot water and maintain its temperature.

Lennox ducted split system with hot water coil that controls three zone dampers is also installed. This system covers lower side of the house and the VRV system covers upper side.

• If we had the residential AHU, we could cover this parts. The zoning might be crucial though.

O’Connell Residence Martha’s Vineyard, Massachusetts1x 4 ton VRV-SPrimary Hot Water Coil Integration (case study #3)

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Hot water

Boiler

Zone #1

Zone Valve

Ambient Thermostat

KRP1B

Zone Valve

Zone #2

Zone #3

Floor Radiant Heater for bathrooms

Below 20F, BC terminal on the outdoor unit PCB is shorted

One of the end switches kicks on the boiler

Hot water coil

Indoor unit

Zone valve

Zone valves for Floor Radiant Heater

Hot water coil

Indoor unit

Boiler Room in the attic

Mechanical closet in the room

CS #3 (cont’d)

Boiler circulates hot water and, heats it up instantly

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MIT Fusion LabCambridge, MA 8 Ton VRV Heat Recovery 5 zonesNeed: Temperature tolerances. Proton Beam Fusion Lab

© 2005 Daikin ACSlide 59Presentation Title : Presenter Name : Date Page 59 © 2005 Daikin AC

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Daikin Successes- MIT Proton Beam Fusion Lab

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Daikin Successes- MIT Proton Beam Fusion

Laboratory-Opportunity Need to provide individual

temperature control in laboratory.

Provide greater precision of temperature control vs. the existing cooling system.

Provide heat or cooling as required simultaneously in support areas.

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Harvard University

ProfileResidential Housing renovation.Multiple VRV-S systems.Upgrade of HVAC system.High energy efficiency.Field test site verification by Harvard of Daikin

VRV. Consideration for future designs in process.

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Harvard University Residential Housing

© 2005 Daikin ACSlide 63Presentation Title : Presenter Name : Date Page 63 © 2005 Daikin AC

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Gibbs College

1x 8 Ton VRV

7x FXAQ12

2x FXFQ18

First Ever VRV Installationin Boston, MA

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Profile:8 Ton Heat Recovery SystemSponsored by US Dept. of EnergyAreas conditioned

LaboratoriesShelter

Goal Hold temperatures to +/- 1F.

Daikin SuccessesUniversity of Las Vegas

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Daikin SuccessesUniversity of Las Vegas

8 Ton Heat Recovery

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Thank you!