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Fan Coil Unit for Medium Static Pressure.

 

Fan Coil Unit for Medium Static Pressure.

PETRA’s fan coil units (DC Series) are designed for applications with medium static pressure. The units are particularly suitable for concealed or exposed ceiling or floor applications with ducted air distribution.

This series covers an airflow range from 283 to 1,416 L/s (600 to 3,000 CFM). The standard unit is comprised of a coil suitable for both chilled and hot water, a fan section with direct drive centrifugal fan and a flat filter. Low water flow rate units are available with 9.8⁰C (16⁰F) temperature difference between inlet & outlet water.

  • Low sound level units, NC as low as NC 30
  • Low height and footprint units
  • Coil can be on the left or right without affecting coil performance (Except PFC & PCC coil that can only be on the right)
  • Coil is supplied with 2-air vents piped to the drain pan
  • Heavy gauge sheet metal casing with G90 – galvanized steel
  • Flexibility in shaped flow resistance
  • Coils are constructed of copper tubes, 9.5 mm (3/8 inch) in diameter, mechanically expanded into aluminum fins
  • All coils are tested for leakage at 3,100 kPa (450 Psi) air pressure and suitable for up to 2,410 kPa (350 Psi) working pressure (with manual air vent, piped to the drain pan)
  • Forward curved centrifugal fans of the double inlet type that designed for maximum efficiency and uniform air distribution
  • Fans are statically and dynamically balanced to ensure quiet operation and optimal performance
  • Fans are direct drive type with 3-speed and driven by permanent split capacitor electric motors (with internal thermal protection)
  • A 25 mm (1 inch) nominal thickness, 22.2 mm (7/8 inch) thick actual frame size with 15.8 mm (5/8 inch) thick aluminum media flat
  • Single sloped galvanized steel drain pan, insulated on its underside to prevent condensation
  • All units are constructed of heavy gauge galvanized steel without paint
  • All units are internally lined with 12.5 mm (0.5 inch) fiberglass insulation for the coil and fan section
  • Double skin with solid or perforated inner skin
  • Stainless steel drain pan
  • Auxiliary drain pan under 3-way valves
  • Synthetic media filter
  • Shut-off valve (loose item or built in the unit)
  • 4-pipe system units have a double coil (3-rows cooling + 1-row heating)
  • 3-way valve (loose item or built in the unit)
  • Built-in finned tube electric heaters with automatic thermal safety
  • Manual Room Thermostat includes a three-speed switch (wall mounted, loose item)
  • Digital Room Thermostat (wall mounted, loose item)
  • Three-Speed Switch (wall mounted, loose item)
  • Unit’s casing for none decorative units is coated with weatherproof, polyester powder electrostatic paint, oven-baked to ensure maximum gloss and hardness
  • Supply grills (for DCC and DCV models only)
  • Ducted return air unit with bottom withdrawal filter (for DCP models only)

1- Ceiling Basic Model with Plenum (DCP)

DCP models are designed for concealed ceiling installation above false ceiling with ducted supply air distribution and free return of air above the false ceiling. The plenum encloses the fan section of the basic unit. Units of this type consist of a coil, fan and flat filter

2- Ceiling Basic Model (DCB)

DCB models are designed for concealed ceiling installation above false ceiling with ducted supply air distribution and free return of air above the false ceiling. Units of this type consist of a coil and fan without a return plenum or filter

3- Ceiling Cabinet Model (DCC)

This is an enclosed version of the DCB model with a cabinet for ceiling installation either above the false ceiling or exposed. The cabinet is fabricated from heavy gauge galvanized steel with removable panels. This model is supplied with a return and supply duct connection and consists of a coil, fan and filter (side withdrawal type)

4- Vertical Cabinet Model (DCV)

This is an enclosed version of the DCB model with a cabinet for floor mounting with vertical air discharge and front return air. The cabinet is fabricated from heavy gauge galvanized steel with removable panels. This model is supplied with return and supply duct connections and consists of a coil, fan and flat filter (front withdrawal type)

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