Moyer Diebel M-DH User Manual
Simply Engineered Better
Technical Manual
Hood Type
Dishwasher
Model:
M-DH
High Temperature with Built-in Booster
Machine Serial No.
April, 2003 Manual P/N 113512 Rev A
P.O. Box 4183 2674 N. Service Road
Winston-Salem, North Carolina 27115-4183 Jordan Station, Ontario, Canada L0R 1S0
336/661-1992 Fax: 336/661-1660 905/562-4195 Fax: 905/562-4618
www.championindustries.com
Complete the information below so it will be available for quick reference.
Model Number Serial Number
Voltage and Phase
Moyer Diebel Service Agency Phone
Moyer Diebel Parts Source Phone
Moyer Diebel Service
Moyer Diebel (USA)
Phone: 1 (336) 661-1992
1 (800) 858-4477
Fax: 1 (336) 661-1660
E-mail www.moyerdiebel.com
We strongly recommend that you Fax or e-mail your orders.
NOTE: When calling to order parts, be sure to have the model number, serial number,
voltage and phase of your machine.
Machine Data Plate with
model & serial number
located on the front of the
lower panel.
COPYRIGHT © 2002 by Moyer Diebel
REVISION RECORD
Revision History
Revision Revised Serial Number Comments
Date Pages Effectivity
09/01/01 — First issue of manual and replacement parts
06/10/02 3 Inserted electrical wiring diagrams.
3/28/03 16, 17 Inserted revised drawing and parts list.
i
REVISION RECORD
ii
TABLE OF CONTENTS
CONTENTS
Page
REVISION HISTORY .................................................................................................................... i
GENERAL....................................................................................................................................... 1
INSTALLATION ............................................................................................................................ 2
Unpacking........................................................................................................................... 2
Electrical Connections ........................................................................................................ 2
Plumbing Connections........................................................................................................ 4
Ventilation Connections ..................................................................................................... 4
Chemical Connections ........................................................................................................ 5
Completing Installation ...................................................................................................... 5
OPERATION................................................................................................................................... 6
MAINTENANCE ............................................................................................................................ 7
Daily Cleaning .................................................................................................................... 7
Maintenance........................................................................................................................ 7
TROUBLESHOOTING .................................................................................................................. 9
REPLACEMENT PARTS...............................................................................................................11
ELECTRICAL SCHEMATICS....................................................................................................... 23
LIST OF FIGURES
Figure 1— Front Panel..................................................................................................................... 2
Figure 2— Wiring Connection ........................................................................................................ 3
Figure 2— Wash Tank Assembly.................................................................................................... 12
Figure 3— Wash and Rinse Assemblies .......................................................................................... 14
Figure 4— Rinse Booster Assembly and Rinse System .................................................................. 16
Figure 5— Control Cabinet ............................................................................................................. 18
Figure 6— Control Panel ................................................................................................................. 20
iii
THIS PAGE
INTENTIONALLY
LEFT BLANK
iv
GENERAL SPECIFICATION
GENERAL SPECIFICATIONS
About this manual
All information, illustrations and specifications contained in this manual are based upon the
latest product information available at the time of publication. Champion constantly improves
its products and reserves the right to make changes at any time or to change specifications or
design without notice and without incurring any obligation.
Organization of Manual
This manual is divided into seven parts:
• General Specifications
• Installation
• Daily Operation
• Cleaning and Maintenance
• Troubleshooting
• Replacement Parts, contains parts diagrams and parts list.
• Electrical Schematics
NOTE:
Unless noted otherwise, dimensions, capacities, temperatures, etc., given in this manual
are U.S. Customary Measures and the Metric Equivalent of the U.S. Customary measures.
Model
The M-DH model is a high temperature (180F/82°C rinse) sanitizing model with booster.
Standard Equipment
• Automatic operation
• Built-in electric booster heater
• Field convertible to corner model
• Electric tank heat
• Extended wash/de-lime switch
• Low-water tank heat protection
• 1-hp drip-proof pump motor
• Splash-proof control console
• Door safety switch
• Common utility connections
• Detergent/chemical connection
provisions
• Balanced door lift system
• Stainless steel front and side panels
• Interchangeable upper and lower
spray arms
• International symbols on controls
1
INSTALLATION
INSTALLATION
Unpack the dishwasher
!
CAUTION:
Care should be taken when lifting the machine to prevent damage.
NOTE:
The installation of your machine must meet all applicable health and safety codes.
1. Immediately after unpacking the machine, inspect for any shipping damage.
If damage is found, save the packing material and contact the carrier
immediately.
2. Remove the dishwasher from the skid. Move the machine to its
permanent location.
3. Machine must be placed on a sound self-draining floor.
4. Level the machine (if required) by placing a level on the top of the
machine and adjusting the feet. Level the machine from
front-back and side to side.
5. Refer to Fig 1. Remove (2) screws that hold the front panel.
Remove the front panel in preparation for service connections.
Figure 1
Remove Front Panel
Electrical Connections
WARNING:
!
Electrical grounding connections must comply with all applicable Electrical Codes.
WARNING:
When working on the dishwasher, disconnect the electric service and place a tag at the
disconnect switch to indicate work is being done on that circuit.
1. A qualified electrician must compare the electrical power supply with the machine electrical specifications before connecting to the incoming service through a fused disconnect
switch.
2. Recommended electrical supply is three phase, permanently wired via wall switch
mounted adjacent to machine. Machine may also be installed on 25A single phase (15A
single phase with reduced rinse heating). Easy on site conversion of standard machine for
any of these requirements.
3. A knock out is provided at the lower right rear corner (as viewed from the front) for
electrical service connection. A fused disconnect switch or circuit breaker (supplied by
others) is required to protect the power supply circuit.
4. Remove (2) lower screws from the front panel of the machine to expose the electrical
controls.
5. Three phase or single phase incoming wire connections are made at the bottom of the
machine’s main terminal block. The main terminal block is located on the side of the front
right post of the dishwasher.
2
SINGLE PHASE CONNECTION
INSTALLATION
L1
Connect (1) Hot wire
to either L1, L2 or L3
THREE PHASE CONNECTION
L1
L2 L3
208/240V
L2 L3
N
Connect the second
Hot wire to "N"
terminal
NOTE: Remove Jumper
wires for 3 phase
applications.
N
Ground
Earth
Ground
Ground
208/240V
208/240V
Connect (3) Hot wires
to L1, L2 and L3
Figure 2
Wiring Connections
208/240V
Connect the
Neutral wire
to "N" terminal
{
Earth
Ground
3
INSTALLATION
INSTALLATION (CONT.)
Plumbing Connections
NOTE:
Plumbing connections must comply with all applicable sanitary and plumbing codes.
Water Connections
1. All M-DH dishwashers require a single, hot water supply.
2. The hot water connection to the dishwasher is 1/2” BSP male.
3. The connection is made from underneath the dishwasher.
4. The recommended minimum water temperature is 140F/60°C.
5. A manual shut-off valve for water (supplied by others) should be installed in the supply
line to allow for servicing of the machine. The shut-off valve should be the same size or
larger than the supply line.
6. Install a pressure reducing valve (PRV) in the water supply line if flow pressure exceeds
20-22 PSI/138-151.8kPa.
Drain Connections
1. The dishwasher is a gravity drain machine equipped with 1-1/2” O.D. hose connection
point.
2. The maximum drain flow rate is 15 gallons/min-56.8 liters/min.
3. Drain height for the dishwasher must not exceed 11” (280mm) above the floor level.
4. The drain connection is made to the dishwasher from behind the machine or through an
access hole in the base of the machine.
Ventilation
NOTE:
Ventilation must comply with local sanitary and plumbing codes.
CAUTION:
!
Exhaust air should not be vented into a wall, ceiling, or concealed space of a building.
Condensation can cause damage.
4
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