Projects

Challenge

To reduce the hazard and liability of slips and falls of the general public entering the Hospital due to snowy, icy or wet conditions in the Winter.

Solution

For this extensive renovation project to the entrance of the hospital (including main lobby and public egress into the hospital), the initial design called for a radiant floor heating system within the lobby in addition to an extensive snow melt area encompassing the entirety of the sidewalk in the front of the building as well as public access areas. The intent of the snow melt system was to reduce the hazard and liability to the general public entering the Hospital. During the VE process the radiant floor was omitted from the project and the snow melt project scope was significantly reduced to include only a portion of the main sidewalk area leading to the lobby entrance and public transport drop off area located directly in front of the main lobby. The snow melt system worked perfectly to ensure direct access to the hospital entry was clear of snow, ice without the use of salts or additional human efforts to remove this critical path area.

Products on the Job

Uponor Radiant Snow Melt

Challenge

TBA

Solution

TBA

Products on the Job

Fujitsu Airstage VRF
Modine 100% MUA Unit
Hydrotherm/ATH KN Boiler
Taco iWorx Controls
Uponor Radiant Floor Heating
Taco SKV Self Sensing Pump(s)
Taco 5900 Hydro-Separator(s)

Challenge

TBA

Solution

TBA

Products on the Job

Riello Array (AR1500) Boiler(s)
Taco “FI” Series Pump(s)
Taco SmartDrive w/TSL VFD(s)
A.O. Smith BTH - Cyclone Water Heater(s)

Challenge

The Time Warner Center completed construction in 2003.  The building’s original booster pumps were constant speed, horizontal split case pumps that provided water to potable fixtures.  Over the course of 10 years, the building paid high maintenance costs due to frequent replacement of the Pressure Reducing Valves (PRVs) on the discharge of the pumps.  A new federal code requirement, NSF/ANSI 61, also called for different materials of construction to reduce lead in drinking water. 

Solution

The engineering team recommended QuantumFlo’s WisperFlo variable speed booster pump package.  The WisperFlo does not use a PRV, but rather a variable frequency drive (VFD) and control logic to maintain system pressure based on demand. A submersible vertical multistage pump type is used on the WisperFlo instead of a horizontal split case type.  The submersible pump is surrounded by water within a stainless steel canister.

Providing the same output, the motor horsepower required was decreased from 60HP to 30HP.  The lower horsepower, variable speed capability, and removal of the PRV will allow for substantial operating and maintenance savings.  The new booster system complies with NSF/ANSI 61 and the submersible pump design also greatly reduced the noise that was formerly caused by the old pumps.

Products on the Job

QuantumFlo WisperFlo variable speed, constant pressure booster pump package
No PRV, No Bladder Tank