Warewash Engineering
Troy, OH 45374-0001
Technical Report - AM15VL Series “Ventless” Dishmachines
In this document:
1.Machine Operation
2.ICC Code Opinions
3.Customer Testing
4.Operational Test Report
5.Installation Basics
6.FAQ’s
This document explains the operation of the new Advansys Ventless dishmachines, AM15VL series, and provides information to assist in the Code Plan Review process. Please Note: It is imperative that this information, along with supporting documentation such as the specification sheet and independent test report, be provided to the Authority Having Jurisdiction (AHJ) to ensure compliance with current local requirements. Links to these documents can be found on page 5 of this report.
The Advansys Ventless dishmachine does not require a Type II vent hood because it does not produce
“excessive” amounts of steam or vapors. Even though it is a high temperature sanitizing dishmachine, it produced almost the exact same amount of latent and sensible heat as a comparable chemical sanitizing or low temperature dishmachine in an independent test.1
The Ventless Dishmachine has three primary advantages:
1. Bleach is not discharged into the sanitary sewer system 2. A ventilation hood is not required
3. Reduced energy consumption results in a savings of up to $1,568/year
1 See independent Commercial Kitchen Ventilation Lab (FSTC) Report dated November 2009.
F38361 (August 5, 2010) |
Page 1 of 6 |
Printed in U.S.A. |
Machine Operation
The Advansys Ventless AM15VL has a unique energy recovery condensing cycle that captures water vapor (1) (more commonly referred to as steam) from the wash cycle and condenses it to heat the incoming cold water. A fan (2) circulates the air from the chamber — filled with water vapor
— across the fins of the heat exchanger coils (3) filled with cold water at 50 to 80 degrees Fahrenheit. The difference in temperatures causes the water vapor to condense and preheats the inlet water (4) used for final rinsing through the rinse pump (5). The preheated water temperature reaches up to 140 degrees Fahrenheit, which reduces the amount of energy needed to reach the required 180 degree Fahrenheit rinse-water temperature. The energy recovery system allows operation using a cold water supply and uses the hot water line only for the initial fill. After the completion of the 30-second condensing cycle, an indicator light signals the machine is ready for unloading, and then the process starts over.
Results:
ICC Code Opinions
The International Code Council (ICC) has provided the following opinions to Hobart:
1) 2009 International Mechanical Code:
Where the heat and moisture loads from a dishmachine, such as a “commercial-type” with a built-in condensing system, are incorporated into the HVAC system design, a Type II hood is not required to be installed above it.
F38361 (August 5, 2010) |
Page 2 of 6 |
Printed in U.S.A. |
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