DMW-22-TDL SERVICE MANUAL
Confidential and proprietary information of Meister Cook, LLC. Not to be reproduced or used in any manner other than
with the express written permission of Meister Cook, LLC.
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1.
INTRODUCTION
The purpose of this manual is to provide a guide for technical service of Meister Cook’s 2x2 Dry Moist
Warmer for Tim Hortons (model DMW-22-TDL). This manual will provide an overview of the
operation of the DMW-22-TDL, as well as a guide for troubleshooting fault symptoms.
Before getting started, it will be helpful to have the following tools and equipment:
Phillips screwdrivers - #00, #1, #2
Right-angle Phillips screwdriver - #2
Wrench and socket set
Needle nose pliers
Side-cut pliers or scissors
Plastic Cable Ties
Multimeter
Power monitor for 120VAC circuits (e.g. Kill-a-Watt, clamp-on current meter)
Heat gun
Degreasing cleaner (e.g. Goof-Off) and stainless steel cleaner
Cleaning rags – non-abrasive, lint-free
2.
BASIC THEORY OF OPERATION
The DMW-22-TDL is designed to hold potentially-hazardous hot food products at safe temperatures
for an extended period of time, without degrading the quality of the food products.
The DMW-22-TDL has (2) independently-controlled heated holding chambers, each which can hold
(2) 1/3-size food pans. Underneath each chamber is a large, finned heater. Convection, provided by
a tangential blower, moves air across the heater and transfers that heat over top the food product in
the pans; the air recirculates, and continues to heat up. Also, heat from the heater is transferred to
the pan shelf, creating a hot plate.
Above each pan is a reversible moist/dry insert. In the “Dry” orientation, heated air passes directly
over the food product; this is recommended for food products that need to maintain a level of
crispiness. The dry orientation has a “third hand” feature that holds the pan in place when it is
partially removed. In the “Moist” orientation, heated air passes over the insert, effectively creating a
top hot plate; this is recommended for food products that need to maintain a level of moisture.
The DMW-22-TDL contains 40 factory default product presets, each of which can be modified and
saved by the operator. Each preset has a distinct 4-letter name, temperature setpoint (165F – 250F),
“Cook” alert time (up to 9hrs 59min) and a “Dump” product alert time (up to 9hrs 59min). See the
table below for factory defaults.
