Products - October 2003
Ceilings & Awnings
Gypsum-based, 24 by 24 by½-in. ceiling tiles are available in three perforated geometric patterns, square quattro20, round point11, and rectangular line4, used in conjunction with unperforated base31 for design flexibility.
Reader Service No. 202
Ceiling that breathes
Acoustical ceiling panels feature a honeycomb structure that allows it to be absorptive at high and low frequencies. With an overall sound absorption average of .89 and a noise reduction co-efficient of .85, the panels are ideal for convention center meeting rooms. They are rated to withstand humidity levels up to 90% and temperatures of up to 104 degrees.
Reader Service No. 203
Create a dome
Pre-engineered and pre-fabricated system for designing and building ceiling domes uses a system of interlocking components that eliminates on-site measuring, bending, and cutting. The system can cut costs by as much as 50%, says the maker.
Reader Service No. 204
Outside or inside?
Two nature-inspired commercial ceilings have a noise reduction coefficient of .65 and a ceiling attenuation class of 37. The Traces patterns, Ferns and Coral, are designed for hospitality, retail, restaurant, and healthcare applications. The 2-ft. by 2-ft. mineral fiber panels feature a square tegular edge detail and install easily in a standard 9/16-in. suspension system. They have a recycled content of 73% and are recyclable.
Reader Service No. 205
Pre-engineered structures / Specialty Construction
Safe and weather proof
Pre-engineered employee/pedestrian passageways are made from structural steel tubing and are designed to protect people from harsh weather. The shelters come fully assembled, complete with glazing, lighting, and optional heating units, and can be positioned over newly installed or existing turnstile equipment.
Porta-King Building Systems.
Reader Service No. 206
The DeWitt High School in DeWitt, Mich., chose precast concrete wall panels to improve heating and cooling efficiency and save on construction costs. The VersaCore panels saved the school district approximately $1.25 million, according to Project Director Gary Ciampa of Clark Construction, the project’s contractor. The panels were also chosen for their wear during harsh weather conditions, as Ciampa said the material had to cooperate with the cold Michigan winter, during construction. Extended panels were chosen to help the school cope with water damage and accidental impact.
Reader Service No. 207
Old is new again
Digital version of the original Round thermostat (model T8775) adds a back light and large-number readout screen. Subtle clicks mark each one-degree twist of the cover ring and on-demand backlighting lights up the display when the user twists the cover ring or presses the readout symbol. The Digital Round comes in heat-only and heat/cool versions with fan output, providing compatibility with 24-volt gas/oil and electric heat and cool systems, single-stage heat pumps, hydronic heating and electric heating. Both versions provide set-point retention during power failures.
Reader Service No. 208
On-line program, the Energy-Calc, allows building owners to estimate potential dollars saved by using gas humidification rather than electric works. The program asks the user to select items from pull-down menus and then instantly calculates annual energy savings.
Reader Service No. 209
Gym breathes fresh air
Niles North High School in Skokie, Ill., is nearly 40 years old, but it has become the school of the future with a new $110 million, three-phase renovation that included the installation of 1,500 linear ft. of Comfort-Flow fabric duct. The new duct work was installed in the school’s 40,000 sq. ft. gymnasium, which houses a dividable gymnastics room, wrestling room, and a main gym with two balconies that are regularly partitioned off. The new fabric duct will allow for 15% of the total air flow through its factory-engineered fabric, limiting dust build up, while the other 85% of airflow will be dispersed through two linear mesh vents that run the entire length of the duct.
Reader Service No. 210
Historic building gets new life
Detroit’s newly remodeled national landmark building, the Cadillac Palace, is now the home to many state of Michigan agencies, after the addition of packaged, self-contained, water-cooled air conditioning units with variable air volume (VAV) conditioned air distribution. Originally completed in 1923, the former General Motors building is 1.2 million sq. ft. and had been using 1,860 window air conditioners and hundreds of spot cooling systems to cool the building. Model SCWB water-cooled, self-contained units were chosen, rated at 65 tons each. The building design called for 68 units, with four on each of the 15 floors with an additional six units serving the Annex wing. The duct system is a dual-duct design, with ventilation air distributed through the building, by approximately 1,400 VariTrane VAV terminal boxes. The Tracer Summit system was added to control the self-contained cooling units and the air-distribution system, managing the cooling plant for computer rooms, and the building-wide steam-heating system as well.
Reader Service No. 211
Variable refrigerant flow-zoning system features inverter technology and simultaneous cooling and heating. The City Multi R2 system is ideal for hospitals, multi-level office buildings and hotels, where building owners want to provide each individual space with its own personalized, zoned comfort system. The system is offered in 80,000 Btu/h units with up to 15 connectable indoor units, and 100,000 Btu/h units with up to 16 connectable indoor units, for outdoor use. Three indoor models are offered, including wall-mounted, ceiling-recessed, and concealed-ducted types. The indoor units have a linear electronic expansion valve that enables the indoor units to operate with variable capacity.
Reader Service No. 212
Window & Door Hardware
Window safety lock provides a concealed-from-view alternative to child guard bars for multifamily residential complexes. The guard lock disables the swing-in operation on tilt and turn windows wile the window is locked. Use of a key disengages the lock function and permits the tilt and turn window to swing or turn in for cleaning.
Thermo Roll Window Corp.
Reader Service No. 213
Stand-alone access control system with patented cylindrical lockset has a modular design for easy future upgrades and is capable of expanding the available audit trial and user memory on the door. I-Que is a 16-position keypad that is weather-proof, and is backed by a lifetime mechanical and electronics warranty.
Reader Service No. 214
Automatic door opener is a low-energy operator that automatically opens the door while using a floor closer to hang and close the door. The Model 2900 is ideal for doors that are too heavy to be controlled by a traditional low-energy operator and for low to moderate traffic applications where ADA accessibility is required. By using balanced pivots, the Model 2900 only needs to overcome the force of the spring of the floor closer, allowing it to control the heaviest of doors. The unit is available for both offset- and center-hung doors, in models to accommodate either the push or pull side of the door, and in deep reveal and double egress options.
Rixson Specialty Door Controls.
Reader Service No. 215
Push then pull
Mortise lock and pull system is available in two models, offering both 650-lb. and 1,000-lb. holding forces. The ML-1100 Series Mortise Lock and Pull System’s locking hardware is totally concealed with tamper-proof mounting, offering security and aesthetics. The system comes in dark bronze and satin black anodized finishes, as well as polished brass, satin brass, polished chrome, and satin chrome plated finishes.
Reader Service No. 216
Chic, lean machine
Door lever is made with laser technology in order to reduce the number of parts to a minimum. The handle’s flat surface allows for corporate logos to be applied. It is constructed in stainless steel and is available in polished or satin finishes.
Valli & Valli.
Reader Service No. 217
New and improved
Grade I commercial door lock is made of steel instead of brass, exceeds ANSI strength minimums by 40%, and is twice as strong as the industry benchmark for durability, says its maker. The Next Generation D-Lock has fewer parts than its previous version, and can be installed in less than two minutes. Designed for hospitals, schools, airports, entertainment venues, and government offices.
Reader Service No. 218
Grade I locksets are built with a heavy-duty mortise chassis, provide a three-hour fire rating and meets ADA requirements for barrier-free accessibility. The ML900 and MK900 Series locksets include high-strength springs and a positive stop to eliminate unsightly sagging levers. A hardened steel hub design prevents damage to the lock when lever handles are abused. The locksets come with a five-year limited warranty and are available in brass, bronze, chrome, and stainless steel finishes.
Dorma Architectural Hardware.
Reader Service No. 219
School lock in
The University of California, Los Angeles, retrofitted classrooms in its historic Haines Hall with LockLink standalone electronic access-control locking system. The Computer Managed locks installed in the hall are stand-alone, battery-powered locks that can be programmed with the software. Each lock manages up to 1,000 users and provides an audit trial for the last 1,000 events. The unit may be momentarily unlocked from the outside with an approved access code or remain unlocked using a toggle mode access code. David Kelly, UCLA locksmith, chose the system for its automatic lock and re-lock function, which allows professors to use specific access codes to enter their assigned classrooms even on the weekends.
IR Security and Safety.
Reader Service No. 220