CFM HRV-42 Product Specification Guide General, FAN Housing Direct Drive Model Hrvd, FAN Impeller

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HRV HOODED ROOF VENTILATORS

PRODUCT SPECIFICATION GUIDE

1.0GENERAL

A.Fans shall be model HRVD Direct Drive or HRVB Belt Drive Hooded Roof Ventilators as manufactured by Continental Fan Manufacturing Inc., of Buffalo, NY, and of the size and capacity as indicated on the drawings and fan schedule.

B.HRVD or HRVB Hooded Roof Ventilators shall be furnished as either supply or exhaust as indicated on the drawings and fan schedule.

C.HRVD or HRVB Hooded Roof Ventilators configured for supply shall be furnished with filters as indicated on the drawings and fan schedule.

D.Fans shall be rated and tested in accordance with ANSI/AMCA Standard 210-99.

E.All motors and electrical components shall conform to NEMA standards.

2.0FAN HOUSING - DIRECT DRIVE MODEL HRVD

A.Fan shall be axial flow, roof mount, and direct drive configuration consisting of a hood section and fan housing with curb base.

B.Fan housing and curb base shall be of welded heavy gauge steel construction.

C.Fan motor base shall consist of heavy gauge steel welded directly to fan housing.

D.Fan housing and motor base shall be coated with an air dried gray enamel finish.

E.Fan shall have an aluminum hood with bird screen.

2.1FAN HOUSING - BELT DRIVE MODEL HRVB

A.Fan shall be axial flow, roof mount, and belt drive configuration consisting of a hood section and fan housing with curb base.

B.Fan housing and curb base panel shall be of welded heavy gauge steel construction.

C.Fan motor, shaft and bearings support base shall consist of heavy gauge steel welded directly to fan housing.

D.Fan housing and motor base shall be coated with an air dried gray enamel finish

E.Fan shall have an aluminum hood with bird screen.

3.0FAN IMPELLER

A.Axial impeller shall be constructed of spark resistant, die cast aluminum airfoil shaped blades secured to a die cast aluminum hub assembly.

B.Axial impeller blades shall be of adjustable pitch construction with multiple hub-to-blade arrangements to maxi- mize air performance. Blade pitch angles shall be factory set.

C.Axial impeller hub shall be designed to incorporate a split taper bushing, and be keyed directly to drive shaft.

4.0FAN MOTOR AND DRIVE

A.Motor shall be TEFC industrial duty and conform to NEMA standards.

B.Motor shall be of voltage, horsepower, RPM and enclosure as indicated on the fan schedule.

C.Fan sheaves shall be cast iron and appropriately sized and aligned.

D.Fan belts shall be static conducting, plus oil and heat resistant.

E.Fan shaft shall be steel, turned, ground and polished.

F.Fan shaft bearings shall be lubricated, self-aligning ball type in cast iron pillow block mounts with external grease fittings.

5.0 OPTIONAL FAN ACCESSORIES

A. Where indicated, fan shall be provided with the following optional accessories:

Disconnect switches – mounted, or mounted and wired

Variable pitch sheaves

 

-

NEMA 3R non-fused

Pre-fabricated roof curbs

 

-

NEMA 4X non-fused

2” disposable filters, for filtered intake unit

Motors

Motor operated damper (supply or exhaust)

 

-

Explosion proof

Gravity shutter for exhaust only

 

-

Special duty

Custom curb base

Protective coatings

Inspection door

-Epoxy

-Eisenheiss

6.0FAN TESTING

A.Axial impeller shall be balanced and mounted in fan assembly.

B.Fan assembly shall be run and tested prior to shipment.

C.A test report shall be maintained on file for each individual fan.

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Contents Roof Ventilators Standard Features & Benefits Accessories / OptionsApplications Optional FAN Accessories Product Specification Guide GeneralFAN Housing Direct Drive Model Hrvd FAN Housing Belt Drive Model HrvbHRV Hooded Roof Ventilators

HRV-30, HRV-36, HRV-54, HRV-24, HRV-42 specifications

The CFM HRV (Heat Recovery Ventilator) series comprises several models, including the HRV-54, HRV-0904, HRV-24, HRV-42, and HRV-48. Each model is designed to enhance indoor air quality while promoting energy efficiency in residential and commercial spaces. The primary feature common to all models is their ability to recover heat from exhaust air and transfer it to incoming fresh air, significantly reducing the energy required for heating or cooling.

The HRV-54 stands out for its high airflow capacity, making it suitable for larger homes. It is equipped with high-efficiency heat exchangers that maximize heat transfer while minimizing energy losses. The HRV-0904 is designed with versatility in mind, featuring adjustable fan speeds and a compact design, allowing it to fit into tighter spaces without compromising performance.

The HRV-24 is ideal for smaller residential applications. It offers the same heat recovery benefits as its larger counterparts but in a more compact package. This makes it an excellent choice for apartment complexes or smaller homes. The HRV-42 provides a balance between performance and size, making it suitable for medium-sized homes. It includes advanced controls that allow for better monitoring and adjustment of air quality levels.

The HRV-48 model integrates cutting-edge technologies such as programmable timers and humidity sensors. These features enable it to automatically adjust operation based on the indoor air quality, ensuring optimal performance and comfort. Additionally, all models are constructed with durable, high-quality materials, enhancing their longevity and reducing maintenance needs.

In terms of energy efficiency, the CFM HRV series is designed to meet or exceed industry standards, helping homeowners reduce their energy bills. Each unit operates quietly, making them suitable for residential environments where noise levels need to be kept to a minimum.

Overall, the CFM HRV units—HRV-54, HRV-0904, HRV-24, HRV-42, and HRV-48—are engineered to provide superior air quality management without sacrificing energy efficiency. Their various features and smart technologies make them adaptable to a wide range of applications, ensuring that every user can benefit from fresh, clean air throughout their space. Whether for a large home or a compact apartment, there is a CFM HRV model tailored to meet specific ventilation needs while enhancing comfort and energy savings.