Rooftop Filtered

NSAU

STANDARD ROOFTOP FILTERED MAKE-UP AIR FANS

  • Air Volume: 2 – 6,000 cfm
  • Maximum SP: 2" wg. @ standard air density

This economical blower is designed to deliver fresh outside make up air for installations requiring frequent air changes. Units are designed for outdoor applications, and are available in vertical or horizontal discharge configurations.
Units are available in sizes up to 6,000 CFM, and external static pressures up to 2″ W.G. Units have a removable lid to provide ample access to all internal components. Standard features include vibration isolation, high efficiency motors, and adjustable drive sheaves (belt drive units only). Units consist of a galvanized enclosure with a blower and motor. Belt drive units also include pulleys and belt(s). This unit has a standard horizontal inlet designed to accommodate an outside air inlet hood with standard 2″ filters.

Combination packages that include both exhaust and supply fans mounted on a single roof curb are also available, please contact your sales representative for more information.

FEATURES & BENEFITS

  • Unit housing made from G90 galvanized steel.
  • Blower mounted on vibration isolators.
  • High efficiency motors standard.
  • Variable pitch motor pulley allows for field adjustment and system balancing. (belt drive units only)
  • Unit available in down or straight through discharge.
  • 2" washable filters standard.
  • Disconnect switch.
  • Spring loaded lid latches.
  • Speed control standard on direct drive units.

OPTIONS

  • Gravity intake damper.
  • Motorized intake damper.
  • Roof Curbs.
  • Wall Mount Kit.
  • VAV Packages.
  • Extra Set of V-Belts. (belt drive units only)

A SERIES

MODULAR ROOFTOP FILTERED MAKE-UP AIR FANS

  • Air Volume: 2 – 22,000 cfm
  • Maximum SP: 4" wg. @ standard air density

The Air Handler Unit is the heart of the modular fan system. It is designed to deliver fresh outside make up air for installations requiring frequent air changes. Units are designed for indoor or outdoor applications, and are available in vertical or horizontal discharge configurations.

Packages are available in sizes up to 22,000 CFM, and external static pressures up to 4″ W.G. Units have large doors on both sides to provide ample access to all internal components. Standard features include vibration isolation, high efficiency motors, and adjustable drive sheaves (belt drive units only). Units consist of a galvanized enclosure with a blower and motor. Belt drive units also include pulleys and belt(s). The blower module has a standard horizontal inlet designed to accommodate an outside air inlet hood with a standard 2″ filters and screen.

To satisfy a variety of installation and climatic requirements, packages are available in a number of configurations. Possible configurations include the addition of either a v-bank or an evaporative cooler intake module and a direct fired or indirect fired heating module. All modules bolt together to form a rigid common base structure that mount onto a single curb structure or can be hung for indoor applications.

Combination packages that include both exhaust and supply fans mounted on a single roof curb are also available, please contact your sales representative for more information.

FEATURES & BENEFITS

  • Vibration isolation.
  • High efficiency motors.
  • Compact weatherproof design.
  • Adjustable drive sheaves. (belt drive units only)
  • Horizontal or down discharge.
  • 2" washable filters.
  • Inlet screen.
  • G90 galvanized steel.
  • Easy accessibility to all components for inspection, maintenance and cleaning.
  • Disconnect switch.
  • Lifting points.
  • Speed control standard on direct drive units.

OPTIONS

  • Gravity intake damper.
  • Motorized intake damper.
  • Roof Curbs.
  • Wall Mount Kit.
  • Mixing Box with Damper Control.
  • DX Cooling Coils.
  • Hot Water/Steam Coils.
  • Indoor Hanging Cradle.
  • Insulated Housing.
  • Evaporative Cooler Intake.
  • VAV Packages.
  • Extra Set of V-Belts. (belt drive units only)

INLINE

INLINE FILTERED MAKE-UP AIR FANS - UNTEMPERED

  • Air Volume: 1 – 7,000 cfm
  • Maximum SP: 2" wg. @ standard air density
INLINE

FEATURES & BENEFITS

  • Vibration isolation.
  • High efficiency motors.
  • Adjustable drive sheaves. (belt drive units only)
  • 2" washable filters.
  • G90 galvanized steel.
  • Easy accessibility to all components for inspection, maintenance and cleaning.
  • Insulated housing.
  • Hanging cradle.
  • Disconnect switch.
  • Lifting points.
  • Speed control standard on direct drive units.
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The Air Handler Unit is the heart of the modular fan system. It is designed to deliver fresh outside make up air for installations requiring frequent air changes. Units are designed for indoor applications, and are available in side discharge only.Packages are available in sizes up to 7,000 CFM, and external static pressures up to 2″ W.G. Units have large doors on both sides to provide ample access to all internal components. Standard features include vibration isolation, high efficiency motors, and adjustable drive sheaves (belt drive units only). Units consist of a galvanized enclosure with a blower and motor. Belt drive units also include pulleys and belt(s). The blower module has a standard horizontal inlet with 2″ filters in fan inlet.

OPTIONS

  • VAV Packages.
  • Extra Set of V-Belts. (belt drive units only)

Economy

EMUA-FA

ECONOMY MAKE-UP AIR FANS - NO MOTOR

This economy make-up air unit is a non-motorized gravity vent. It is an economical choice when a fresh air intake or pressure relief is needed.

* Approximate CFM against static resistance is based on a throat area velocity of approximately 1200 fpm.

PERFORMANCE DATA

Size CFM Against Static Resistance*
10″ 750
12″ 1000
14″ 1475
18″ 2400

DMUA-FA

ECONOMY MAKE-UP AIR

  • Air Volume: 350 – 2,460 cfm
  • Maximum SP: 0.5" wg. @ standard air density

Can be used anywhere fresh air is needed to replace exhaust air, commercial kitchens, office buildings, bakeries, laundries, factories, warehouses, foundries, locker rooms, etc.

OPTIONS

  • Motorized Damper.
  • Wall Mount Sleave.
  • Roof Curb.

FEATURES & BENEFITS

  • Emergency disconnect switch.
  • Spun aluminum housing for rust free weather resistant durability.
  • Propellers constructed with die formed blades riveted to a steel hub.
  • Can be roof or wall mounted.
  • Standard bird screen.
  • Wire conduit to provide a clear channel for electrical connections.

Accessories

Cooling Modules

EVAP, DX, Chilled Water Coils

Available cooling options for make-up air units include Evaporative Cooling, DX Coils and Chilled Water Coils. Units available to meet indoor and/or outdoor applications.

Heating Modules

CatListHeatingMod

Direct Fired, Indirect, Electric

Available heating options for make-up units include Direct Fired, Indirect Fired, Electric, Hot Water Coils and Steam Coils. Units available to meet indoor and/or outdoor applications.

Intake Discharge

CatListIntake

Accessories

Accessories for make-up air units include Disharge Diffusers, Downturn Plenum, Field Assembled Curbs, Intake Hood, Mixing Box, Screen Intake, Trunkline and V-Bank.