Hobart AM15VL Service Manual

In this document:

1. Machine Operation

2. ICC Code Opinions

3. Customer Testing

4. Operational Test Report

5. Installation Basics

6. FAQ’s

Warewash Engineering

Troy, OH 45374-0001

Technical Report - AM15VL Series “Ventless” Dishmachines

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.

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.

Machine Operation

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.