Global IFS Perimeter Natural Convection Terminal (PNT) October 2020

- c. Cable types shall be limited to no more than one type and connector per device to reduce complexity in wiring and future modifications.
- d. Cables shall be stranded wire to increase flexibility in the wires, to improve ease of installation, and reduce opportunity for damage during installation.

### 2.02 Perimeter Natural Convection Terminal

- A. Description:
- 1. Furnish and install Global IFS model PNT (L x W) with the sizes, configurations and capacities indicated on the plans and air outlet schedule.
- B. Performance:
- 1. The manufacturer of the perimeter natural convection terminal shall provide performance data for air volume, initial pressure drop, and heating element performance.
- 2. Performance data published should be collected from testing completed for in floor applications that represent the intended application. Bare heating element data not tested within the convective trough should not be considered.
- 3. Air shall be delivered to the space without the use of nozzles.
- 4. All data must be tested in accordance with the most recent publication of ASHRAE 70.
- C. Construction:
- 1. The plenum shall be constructed of minimum 20 gauge steel.
- 2. The plenum shall have a finished height of 10-3/8 inches, and shall be suitable for installation above conduit in a twelve inch raised floor.
- 3. The PNT shall be ETL certified
- 4. The PNT shall be supplied complete with two modular jacks for system connections and modular plug-in control cable.
- a. The MCABLE shall be 15, 25 or 35 feet in length and shall be plenum rated.
- b. Each cable shall have two (2) modular male plugs to interface with connections.
- c. The cable shall be constructed of eight 8 individually insulated wires wrapped in an insulated jacket.
- d. Each wire shall be constructed of stranded copper fibers; solid core copper is not acceptable.
- 5. The plenum shall be [floor tile] or [pedestal] supported
- 6. Removable end caps for continuous grille integration
- 7. Equipped with front and side knockouts
- D. Heater:
- 1. The unit shall be supplied with a [high capacity fin pack] or [hydronic heater] or [electric coil] (select one):
- a. Fin Pack - High Capacity Fin Pack
- 1. The PNT shall be equipped with an Ultra Heat multi-pass coil consisting of copper tubes and aluminum fins that are designed to minimize pressure drop through the coil for Underfloor applications and maximize heat output.
- b. Fin Tube - Standard Capacity Hydronic Heater
- 1. The PNT shall be constructed with integral hydronic copper tube with aluminum fin element
- 2. The hydronic heater shall be supplied with 1.125 inch outside diameter, 1 inch nominal sweat connection
- c. Electric heater:
- 1. Shall be supplied with an electric finned strip heater constructed of stainless steel sheath material and nickel plated fins. Heaters are of UL construction, and shall be equipped with over temperature protection through an automatic temperature reset switch that allows sensing throughout a continuous unit length. The thermal cutoff switch should be designed for sensitivity that allows a response to individual hot spots along the unit length. Disconnect switch is included.
- 2. The electric heater element shall be mounted in the sheet metal plenum below the grille.
- 3. The electric heater shall be supplied with a [120 volt, single phase, 60 Hertz] or [277 volt, single phase, 60 Hertz], complete with a transformer.
- 4. Single stage heat
- 5. The electric heater capacity shall be:
- a. 1000 Watts [48 inch long units]
- b. 1500 Watts [72 inch long units]
- c. 2000 Watts [96 inch long units]
- E. Finish:
- 1. The plenum shall be finished in pre-painted black powder coat.
- F. Mounting/Fastening:
- 1. Floor tile supported units shall be supplied with a 1/2 inch flange on all sides.
- 2. Pedestal supported units shall be supplied with support brackets attached to the units.
- 3. Support pedestals shall be positioned without the use of tools.
- 4. Pedestal and pedestal heads shall be provided by others.
- G. Options:

Diffusers, Registers, and Grilles - PNT 23 37 13 -3