ERV: Energy Recovery Ventilator

  • ERV
  • Standard Construction Features
  • Standard Construction Features
  • Standard Construction Features
  • Certification logo
ERV

ERV

Standard Construction Features

Standard Construction Features

Standard Construction Features

Standard Construction Features

Standard Construction Features

Standard Construction Features

Certification logo

AMCA Air Certified

A challenge facing today’s HVAC engineer is how to meet ASHRAE Standard 62, Ventilation for Acceptable Indoor Air Quality, while conserving valuable energy resources needed to condition that outdoor air. LOREN COOK COMPANY’s Energy Recovery Ventilator (ERV) provides an economical solution to this design challenge. The ERV offers a wide performance range, high pressure capabilities, and high energy recovery efficiencies. This product delivers where it counts most - first cost savings, performance efficiencies, durability, and easy maintenance. The Cook ERV is available in two direct drive sizes and eight belt drive sizes ranging from 500 to 10,000 cfm.

The primary component of the ERV is a durable, rotating enthalpy wheel. The wheel features a spirally wound, fluted air channel design providing ultra low pressure drop and eliminates lateral leakage within the wheel. The mass provided by the 4” wheel depth allows for excellent sensible heat transfer. The manufacturing process used to create the wheel media is unique to the industry, allowing synthetic absorption type desiccant to be combined with synthetic fiber substrate while it is still a liquid. This process distributes a much higher volume of desiccant throughout the media, not just on the surface, resulting in excellent latent heat transfer. This also assures that the media will not suffer any degradation in adsorption performance during its long and trouble free operating lifetime.

Standard Construction Features

  • Wheel media is constructed of a unique fluted synthetic fiber-based media impregnated with a non-migrating water selective 4 angstrom (Å) molecular sieve desiccant (typical flute size is 6 mils).
  • The cassette assembly consists of an energy recovery wheel, drive motor, and drive components which include pulleys, belts and bearings. The cassette assembly slides out for easy access Supply and Exhaust Blower Assemblies All blowers are centrifugal forward curved type with painted steel housings. The wheels are balanced in accordance with AMCA Standard 204-96, Balance Quality and Vibration Levels for Fans.
  • The cabinet is constructed of minimum 18 gauge galvanized steel panels bolted to a minimum 16 gauge galvanized steel base. The entire cabinet is insulated with 1” thick, 3 lb. density, foil faced insulation. A hinged door is provided for access to the electrical control panel. Removable doors are provided for access to all other internal components.
  • Filters are furnished in both the supply and exhaust airstreams. Standard 2” thick, 30 percent efficient pleated filters are utilized to maintain the efficiency of the energy recovery wheel. Air performance data includes the initial pressure drop of the air filters.
  • All internal electrical components are pre-wired for single-point power connection. Control panel is UL listed with hinged access door and interlocking NEMA 3R disconnect switch. Control panel is standard on belt drive units & optional on direct drive units.
Related Documents +-

See the Downloads tab for Specifications, Submittals and FanDrafter files

 

  • ERV-D

  • ERV-B

  • Downloads

AC

Energy recovery component rated in accordance with ARI Standard 1060-2000 and certified to ARI. Actual performance in packaged equipment may vary.

LOREN COOK COMPANY certifies that the ERV shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.

Type ERV is furnished standard with UL 1812 listing (Ducted Heat Recovery Ventilators).

Type ERV is furnished standard with CUL 1812 listing (Ducted Heat Recovery Ventilators) when furnished with factory supplied motor.

ERV-D

Energy Recovery Ventilator
Direct Drive

Description: Unit shall be a direct driven energy recovery ventilator.

Certifications: Unit shall be manufactured at an ISO 9001 certified facility. Unit shall be listed by Underwriters Laboratories (UL 1812) and UL listed for Canada (cUL 1812). Unit shall be ARI certified in accordance with the ARI Air-to-Air Energy Recovery Ventilation Equipment Certification Program. Unit shall bear the AMCA Certified Ratings Seal for Air Performance.

Construction: The unit shall be of bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 18 gauge galvanized steel. Duct collars shall be provided as standard. Unit shall be provided with insulated top, side and interior panels utilizing 1” thick, three pound density foil faced insulation, manufactured and tested to meet NFPA 90A and UL 181 requirements. Insulation shall be fastened to the panels with weatherproof adhesive and weld pins. Energy recovery wheel shall be mounted in a slide track for easy inspection and cleaning. Separate blower and motor shall be provided for supply and exhaust airstream for independent system balancing. Blower and motor assemblies shall slide out for easy inspection. Two inch thick, 30 percent efficient pleated filters shall be provided for supply and exhaust airstreams. Entire side panel shall be hinged and removable for single side access to internal components. Unit shall bear an engraved aluminum nameplate and shall be shipped in ISTA Certified Transit Tested Packaging.

Energy Wheel: Wheel shall be a total energy recovery wheel constructed of fluted synthetic fiber-based media impregnated with a non-migrating water selective 4 angstrom molecular sieve desiccant. Wheels with the desiccant applied in a secondary operation will not be accepted. Energy transfer ratings shall be ARI certified in accordance with the ARI Air-to-Air Energy Recovery Ventilation Equipment Certification Program, based on ARI Standard 1060-2000.

Fan Wheel: Wheel shall be SWSI centrifugal forward curved type, constructed of painted steel. Wheel shall be balanced in accordance with AMCA Standard 204-96, Balance Quality and Vibration Levels for Fans.

Motors: Motors shall be heavy duty type with permanently lubricated sealed ball bearings and furnished at the specified voltage, phase and enclosure.

Controls and Electrical: All internal electrical components shall be pre-wired for single point power connection. Optional UL Listed control panel. Unit will include hinged access door and interlocking NEMA 3R disconnect switch.

Product: Ventilator shall be model ERV as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Dimension-drawing

Size A B C Wheel
Diameter		 Filter Quantity/Filter Size Approx.
Ship. Wt.
500 23-13/16 22 50-3/32 18 (2) - 16 x 20 285
1000 28-13/16 28-1/4 50-3/32 24 (2) - 16 x 25 344
AC

Energy recovery component rated in accordance with ARI Standard 1060-2000 and certified to ARI. Actual performance in packaged equipment may vary.

LOREN COOK COMPANY certifies that the ERV shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.

Type ERV is furnished standard with UL 1812 listing (Ducted Heat Recovery Ventilators).

Type ERV is furnished standard with CUL 1812 listing (Ducted Heat Recovery Ventilators) when furnished with factory supplied motor.


ERV-B

Energy Recovery Ventilator
Belt Drive

Description: Unit shall be a direct driven energy recovery ventilator.

Certifications: Unit shall be manufactured at an ISO 9001 certified facility. Unit shall be listed by Underwriters Laboratories (UL 1812) and UL listed for Canada (cUL 1812). Unit shall be ARI certified in accordance with the ARI Air-to-Air Energy Recovery Ventilation Equipment Certification Program. Unit shall bear the AMCA Certified Ratings Seal for Air Performance.

Construction: The unit shall be of bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 18 gauge galvanized steel, bolted to a minimum 16 gauge galvanized steel base with integral lifting lugs. Unit shall be provided with insulated top, side and interior panels utilizing 1” thick, three pound density foil faced insulation, manufactured and tested to meet NFPA 90A and UL 181 requirements. Insulation shall be fastened to the panels with weatherproof adhesive and weld pins. Energy recovery wheel shall be mounted in a slide track for easy inspection and cleaning. Separate blower and motor shall be provided for supply and exhaust airstream for independent system balancing. Blower and motor assemblies shall be mounted on rubber vibration isolators. Two inch thick, 30 percent efficient pleated filters shall be provided for supply and exhaust airstreams. Removable side panels shall be provided for easy access to motors, blowers, filters and energy recovery wheel. Unit shall bear an engraved aluminum nameplate and shall be shipped in ISTA Certified Transit Tested Packaging.

Energy Wheel: Wheel shall be a total energy recovery wheel constructed of fluted synthetic fiber-based media impregnated with a non-migrating water selective 4 angstrom molecular sieve desiccant. Wheels with the desiccant applied in a secondary operation will not be accepted. Energy transfer ratings shall be ARI certified in accordance with the ARI Air-to-Air Energy Recovery Ventilation Equipment Certification Program, based on ARI Standard 1060-2000.

Fan Wheel: Wheel shall be DWDI centrifugal forward curved type, constructed of painted steel. Wheel shall be balanced in accordance with AMCA Standard 204-96, Balance Quality and Vibration Levels for Fans.

Motors: Motors shall be heavy duty type with permanently lubricated sealed ball bearings and furnished at the specified voltage, phase, and enclosure.

Coils: All heating and cooling coils shall be tested and rated in accordance with ARI Standard 410 and certified in accordance with the ARI Certification Program. DX coils shall be equipped with distributors to receive expansion valves at the liquid connections.

Controls and Electrical: All internal electrical components shall be pre-wired for single point power connection. Internal control panel shall be UL listed with hinged access door and interlocking NEMA 3R disconnect switch. Each motor shall have a motor starter combination providing fuseless disconnect, over-current, overload and motor starting functions. A 24 volt control circuit shall be provided to allow remote on/off control of ERV by building control system. Short circuit protection shall be provided on primary and secondary of control power transformer.

Bearings: Bearings shall be permanently lubricated, sealed ball type selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150 percent of the installed motor horsepower. The variable pitch motor drive shall be factory set to the specified fan RPM.

Product: Ventilator shall be model ERV as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Dimension-drawing

Size A B C Wheel Diameter Filter Quantity/Filter Size Roof Curb Dimensions Approx. 
Standard with Coils Standard with Coils Ship. Wt.
1500 42-7/8 49-1/4 54-1/4 90-1/4 28 (2) - 12 x 24, (2) - 20 x 24 45-3/4 x 50-3/4 45-3/4 x 86-3/4 604
2500 52-3/8 52 52 88 36 (4) - 20 x 25 48-1/2 x 48-1/2 48-1/2 x 84-1/2 722
3500 59 60-1/2 64-1/2 100-1/2 42 (4) - 14 x 25, (4) - 16 x 25 57 x 61 57 x 97 990
4500 64-1/2 66-1/2 69-1/2 105-1/2 48 (10) - 16 x 20 63 x 66 63 x 102 1111
5500 71 66-1/2 69-1/2 105-1/2 54 (12) - 16 x 20 63 x 66 63 x 102 1235
7000 76-1/2 80 79-1/2 115-1/2 60 (4) 20 x 20, (8) 20 x 24 76-1/2 x 76 76-1/2 x 112 1609
8500 83 80 79-1/2 115-1/2 66 (6) - 18 x 24, (6) - 20 x 24 76-1/2 x 76 76-1/2 x 112 1734
10000 90 84-1/2 100 136 72 (8) - 20 x 24, (8) - 18 x 20 81 x 96 81 x 132 3000