®® Case Studies Melink Intelli-Hood Snapshot of 4 Melink customers A New Standard in Kitchen Ventilation Intelli-Hood Kitchen Ventilation Controls

Savings & Benefits Other Intelli-Hood® Advantages Improves Energy Efficiency

® The Intelli-Hood controls improve energy efficiency 1. Eliminate drive losses and belt Supermarket Restaurant Hotel University by reducing the exhaust and make-up fan speeds during maintenance by specifying direct Annual energy savings Annual energy savings Annual energy savings idle periods. Typical annual operating savings are Annual energy savings drive fans. per location per location per location per location $1,500-$3,000 per hood, with a payback of 1-3 years. $2,340 $2,040 $5,500 $5,580 2. Reduce humidity problems associated Improves Kitchen Comfort ® with a negative building pressure. Current payback Current payback Current payback Current payback The Intelli-Hood controls improve kitchen comfort 1.8 years 2.2 years 2.1 years 2.3 years by reducing the supply of hot/humid make-up air during 3. Improve hood and building air idle periods. They also serve as an economizer when balance with variable-speed controls indoor and outdoor conditions are right for free cooling. Finally, the Intelli-Hood® controls reduce hood noise in the (verses belts and pulleys). kitchen up to 90% when the fans slow down. 4. Extend HVAC equipment life by Before-and-After Energy Savings Improves Fire Safety reducing run time and thus wear/tear The Intelli-Hood® controls can improve fire safety by of compressors, motors, heaters, etc. KW with the Intelli-Hood® monitoring the exhaust air temperature. If the temperature

Actual reading from a current Intelli-Hood supermarket ® 5. Prevent simultaneous MUA heating KW without the Intelli-Hood approaches the fusible link rating of the fire suppression installation Jan. 30 - Feb. 5, 2002 system, an alarm can sound and/or the cooking and RTU cooling inside the kitchen 8.00 appliances can be shut down. during the winter.

7.00 Improves Occupant Health 6. Reduce grease on roof and inside ® 6.00 The Intelli-Hood controls can improve indoor air ducts and fans by reducing the

quality (IAQ) by monitoring the CO2 levels in the dining “transport” velocity. 5.00 area. The exhaust and outside air quantities can be increased to 100% if the level exceeds a certain threshold. 4.00 Intelli-Hood 3.00 Kitchen Ventilation Controls 2.00

1.00 MELINK CORPORATION 0.00 5508 Fair Lane, Cincinnati, Ohio 45227 USA M M M M M M M M M M M M M M M A P A P A P A P A P A P A P A Phone: 513-527-7020 • Fax: 513-527-7023

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 : : : : : : : : : : : : : : : www.melinkcorp.com 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 30-Jan-02 31-Jan-02 01-Feb-02 02-Feb-02 03-Feb-02 04-Feb-02 05-Feb-02 Printed in the U.S.A. Save Up to 50% in Kitchen Hood Energy Costs Copyright © 2002 by Melink Corporation Melink Intelli-Hood ® The Temperature Sensor monitors the exhaust air temperature in the duct. A signal is A Smart Solution to an Proven Technology transmitted to the I/O Processor to vary the Industry Problem fan speed in proportion to the actual heat load. (To optimize energy savings and kitchen comfort, additional temperature & Easy to Operate sensors can monitor the outside air and kitchen space temperature.) The Melink Intelli-Hood® controls are the new industry standard for commercial kitchen ventilation systems. Engineers, consultants and operators are specifying The Air Purge Units The Electronic Motor Starter is a VFD prevent grease vapors that receives a start/stop command and a 4- them on thousands of hoods for both new and existing from entering the 20ma signal from the I/O Processor. It varies stores. Optic Sensor the fan speed between a minimum and maximum setting based on the actual heat The Intelli-Hood ® Keypad is easy to operate. housings and collecting on the and smoke load. Savings & Benefits lenses. Minimizes the need for ® The Intelli-Hood controls improve hood efficiency up Most commercial kitchen hoods wiping off lenses to 50%. Typical annual operating savings are to once a month, typically. (Not $1,500-$3,000 per hood, with a payback of 1-3 operate at 100% capacity all day, required for heat-only years. They also improve kitchen comfort, indoor air applications.) quality, and fire safety. even during idle non-cooking

Simple to Use periods. This costs the U.S. food The cook/chef presses the light and fan switch on the Keypad. That’s it! service industry over $2 billion in

wasted energy every year. The Optic Sensors The I/O Processor The hood lights then turn on and the fans go to a monitor when actual controls the lights and preset minimum speed of 10-50%. When the cooking cooking is taking place. fan for up to four Upon the detection of hoods. It is typically appliances are turned on, the fan speed increases any smoke/vapors mounted in an end- based on exhaust air temperature. During actual inside the hood, they cabinet, and com- ® send a signal to the I/O municates between cooking, the speed increases to 100% until the The Melink Intelli-Hood controls Processor to speed up the hood sensors and smoke/vapor is removed. the fans to 100% until Electronic Motor the effluent is effectively Starter(s) via plug-and- are the only proven solution to this removed. (Not required for play cables. It is also heat-only applications.) connected to the Keypad mounted on the front face of problem. Using a microprocessor and one of the hoods for easy user interface. sensors, they reduce fan speed during

idle periods to save both fan energy The Keypad provides a wide range of functions: light and fan operation, Intelli-Hood 100% bypass capability, system and conditioned air. setup (minimum speed, temperature Kitchen Ventilation Controls span) and monitoring (fan speed percentage, temperature, diagnos- tics). One Keypad can control up to Approvals U.S. Patent # 4,903,685 UL Listed, CSA Listed, CE; complies with ® two I/O Processors or 8 hoods. The Intelli-Hood controls can be specified on new hoods or be U.S. Patent # 6,170,480 B1 all applicable codes and standards including retrofitted on existing hoods. Foreign Patents Pending NFPA 96, IMC, BOCA, SBCCI, UMC and NSF.