Moyerdiebel MD240HT User manual

Installation/Operation Manual with Service Replacement Parts
Moyer Diebel Model MD240
Batch-type
Glass Washer
2674 N. Service Road, Jordan Station
Ontario, Canada L0R 1S0
905/562-4195 Fax: [phone]
Toll-free: 800/ 263-5798
3765 Champion Boulevard
Winston-Salem, NC 27105
336/661-1992 Fax: [phone]
Toll-free: 800/ 858-4477
Issue Date: 10.08.15
Manual P/N 0513062 rev. B
Printed in the USA
For machines beginning with S/N W101013036 and above
Machine Serial No.
Models:
MD240HT
High Temperature
Hot Water Sanitizing
MD240LT
Low Temperature
Chemical Sanitizing
MD240HT
MD240LT
240 Series

COPYRIGHT © 2015 All rights reserved Printed in the USA
For future reference, record your dishwasher information in the box below.
Model Number__________________________ Serial Number_______________________
Voltage________________Hertz_____________ Phase__________________
Service Agent __________________________________ Tel:______________________
Parts Distributor _________________________________ Tel:______________________
ATTENTION:
The model no., serial no., voltage, Hz
and phase are needed to identify your
machine and to answer questions.
The machine data plate is located
on the lower front panel.
Please have this information ready
if you call for service assistance.
National Service Department
In Canada: In the USA:
Toll-free: 800/ 263-5798 Toll-free: 800/ 858-4477
Tel: [phone] Tel: [phone]
Fax: [phone] Fax: [phone]
email: [email protected] email: [email protected]
The USGBC and the CaGBC Member Logos are trademarks owned by the U.S. Green Building Council and The Canadian Green Building Council,
respectively, and are used by permission. The logos signify only that Champion Industries, and Moyer Diebel are USGBC and CaGBC members;
USGBC and CaGBC do not review, certify nor endorse the products or services offered by its members.

http://www.championindustries.com/canada/register
REGISTER YOUR PRODUCT ONLINE
Make sure you are connected to the internet then enter the address below.
In the U.S.A
http://www.moyerdiebel.com/register
In Canada

PRODUCT REGISTRATION
BY FAX
[phone] in the USA
1-[phone] in Canada
IMPORTANT IMPORTANT
Model Serial #
Date of Installation:
Company Name:
Telephone #: ( ) ---
Contact:
Address:
Address:
Telephone #:
Contact:
Installation Company:
(Street) Province Postal Code
FAILURE TO REGISTER YOUR PRODUCT MAY VOID YOUR WARRANTY
PRODUCT REGISTRATION CARD
COMPLETE THIS FORM AND FAX TO:

i
Revision History
Revision Revised Serial Number Revision
Date Pages Effectivity Description
11.9.11 All
55
W101013036
All
Released First Edition
10.8.15 Added P/N 0512426, 2KW Heater
A revision might be a part number change, a new instruction, or other information that was
not available at print time. We reserve the right to make changes to these instructions without
notice and without incurring any liability by making the changes. Equipment owners may
request a revised manual, at no charge, by calling 1 [phone] in the USA or by calling
1 [phone] in Canada.
Revision History

ii
Limited Warranty
LIMITED WARRANTY
Champion Industries and Moyer Diebel, (herein referred to as "The Company"), 3765 Champion Boulevard,
Winston-Salem, North Carolina 27105, and P.O. Box 301, 2674 N. Service Road, Jordan Station, Canada, L0R 1S0,
warrants machines, and parts, as set out below.
Warranty of Machines: The Company warrants all new machines of its manufacture bearing the name
"Champion" or "Moyer Diebel" and installed within the United States and Canada to be free from defects in material and
workmanship for a period of one (1) year after the date of installation or fteen (15) months after the date of shipment by
The Company, whichever occurs rst. [See below for special provisions relating to glasswashers.] The registration
card must be submitted by fax or online with The Company within ten (10) days after installation. If the registration is
not submitted to The Company within such period, the warranty will expire after one year from the date of shipment.
The Company will not assume any responsibility for extra costs for installation in any area where there are
jurisdictional problems with local trades or unions.
If a defect in workmanship or material is found to exist within the warranty period, The Company, at its election,
will either repair or replace the defective machine or accept return of the machine for full credit; provided;
however, as to glasswashers, The Company's obligation with respect to labor associated with any repairs shall end
(a) 120 days after shipment, or (b) 90 days after installation, whichever occurs rst. In the event that The Company
elects to repair, the labor and work to be performed in connection with the warranty shall be done during regular
working hours by The Company's authorized service technician. Defective parts become the property of The Company.
Use of replacement parts not authorized by The Company will relieve The Company of all further liability in connection
with its warranty. In no event will The Company's warranty obligation exceed The Company's charge for the machine.
The following are not covered by The Company's warranty:
a. Lighting of gas pilots or burners.
b. Cleaning of gas lines.
c. Replacement of fuses or resetting of overload breakers.
d. Adjustment of thermostats.
e. Adjustment of clutches.
f. Opening or closing of utility supply valves or switching of electrical supply current.
g. Cleaning of valves, strainers, screens, nozzles, or spray pipes.
h. Performance of regular maintenance and cleaning as outlined in operator’s guide.
i. Damages resulting from water conditions, accidents, alterations, improper use, abuse,
tampering, improper installation, or failure to follow maintenance and operation procedures.
j. Wear on Pulper cutter blocks, pulse vanes, and auger brush.
Examples of the defects not covered by warranty include, but are not limited to: (1) Damage to the exterior or
interior nish as a result of the above, (2) Use with utility service other than that designated on the rating plate,
(3) Improper connection to utility service, (4) Inadequate or excessive water pressure, (5) Corrosion from
chemicals dispensed in excess of recommended concentrations, (6) Failure of electrical components due to
connection of chemical dispensing equipment installed by others, (7) Leaks or damage resulting from such
leaks caused by the installer, including those at machine table connections or by connection of chemical
dispensing equipment installed by others, (8) Failure to comply with local building codes, (9) Damage
caused by labor dispute.
Warranty of Parts: The Company warrants all new machine parts produced or authorized by The Company to be free
from defects in material and workmanship for a period of 90 days from date of invoice. If any defect in material and
workmanship is found to exist within the warranty period The Company will replace the defective part without charge.
DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY. THE COMPANY'S WARRANTY IS ONLY TO THE
EXTENT REFLECTED ABOVE. THE COMPANY MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUD-
ING, BUT NOT LIMITED, TO ANY WARRANTY OF MERCHANTABILITY, OR FITNESS OF PURPOSE. THE COMPANY
SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. THE REMEDIES SET OUT ABOVE ARE
THE EXCLUSIVE REMEDIES FOR ANY DEFECTS FOUND TO EXIST IN THE COMPANY'S DISHWASHING MACHINES
AND THE COMPANY'S PARTS, AND ALL OTHER REMEDIES ARE EXCLUDED, INCLUDING ANY LIABILITY FOR
INCIDENTALS OR CONSEQUENTIAL DAMAGES.
The Company does not authorize any other person, including persons who deal in The Company's dishwashing machines
to change this warranty or create any other obligation in connection with The Company's Dishwashing Machines.

iii
Revision History ................................................................................................................................... i
Limited Warranty ................................................................................................................................... ii
Model Descriptions ................................................................................................................................... iv
Receiving -All Models ................................................................................................................................... 1
Installation - 240HT..........................................................................................................................1
Electrical Connections - 240HT ........................................... 2
Water Connection - 240HT .................................................. 5
Drain Connection - 240HT ................................................... 5
Initial Start-up - 240HT ....................................................................................................................6
Filling the Booster - Booster Fill Switch ............................... 7
Chemical Dispensing Pumps ............................................... 8
Operation - 240HT............................................................................................................................13
Normal Wash Mode - 240HT ............................................... 13
Rinse Sentry Mode - 240HT ................................................ 14
Drain Mode - 240HT ............................................................ 14
Cleaning and Maintenance - 240HT ........................................................................................ 15
Cleaning -240HT.................................................................. 15
De-liming - 240HT ................................................................ 19
Maintenance - 240HT .......................................................... 20
Troubleshooting -240HT ...................................................... 21
Installation - 240LT ..........................................................................................................................23
Electrical Connections - 240LT ............................................ 23
Water Connection - 240LT ................................................... 24
Drain Connection - 240LT .................................................... 25
Initial Start-up - 240LT ..................................................................................................................... 26
Chemical Dispensing Pumps ............................................... 27
Operation - 240LT ............................................................................................................................13
Normal Wash Mode - 240LT ................................................ 30
Drain Mode - 240LT ............................................................ 31
Cleaning and Maintenance - 240LT ........................................................................................15
Cleaning -240LT .................................................................. 32
De-liming - 240LT ................................................................ 35
Maintenance - 240LT ........................................................... 36
Troubleshooting -240LT ....................................................... 37
Service Replacement Parts ............................................................................................................ 39
Electrical Schematics......................................................................................................................74
Timer Charts ....................................................................................................................................76
Table of Contents
Table of Contents
Model 240HT and 240LT Glasswasher

iv
Model Descriptions
Model Descriptions
240HT
High temperature hot water sanitizing dishwasher with built-in 40°F/22°C rise booster heater
208-240VAC/60/1
240LT
Low temperature chemical sanitizing dishwasher with three built-in chemical dispensers for
dtergent, sanitizer, and rinse-aid.
115VAC/60/1
Optional Equipment (consult factory)
70°F/39°C rise built-in booster heater
208-240V/60/1
Additional dish racks:
Flat-bottom dish rack - P/N 101273
Peg dish rack - P/N 101285
Casters, set of four: 2 locking, 2 regular - P/N 0701962
Low chemical alarm - P/N 0707258
Quick disconnect package (includes casters)
Site Glass Kit - P/N 0712993
Pressure Reducing Valve (unmounted) - P/N 107550

1
NOTE:
The installation of your glasswasher must be performed by qualified service personnel who will
observe all applicable safety, electrical, plumbing, and health codes. Problems due to improper
installation are not covered by the Warranty.
1. Inspect the outside of the glasswasher carton for signs of damage.
2. Remove the carton and inspect the glasswasher for damage.
3. Check for any accessories that may have shipped with your glasswasher.
4. Turn to the front of this manual for the instructions to validate your machine warranty
online or by fax.
5. Move the glasswasher near its permanent location.
6. Compare the installation site utility connections with the glasswasher utility connections
and make sure they are the same.
7. The installation should provide storage space for the glasswasher chemical supply
containers. Containers must be placed on the oor and as close to the machine as
possible.
8. Place the glasswasher in its permanent location.
9. Level the glasswasher front-to-back and side-to-side.
The machine has 4 adjustable feet for leveling unless equipped with optional casters.
Installation
Receiving - All Models
CAUTION:
Be careful when lifting and moving the glasswasher to prevent damage to the machine.
26"
[660]
38"
[965]
38-3/4"
[984]
11" [280]
clearance
26-1/2"
[673]
24"
[610]
3
1
2
3
1
2
1 Electrical Connection
2 Water Connection
3 Drain Connection
Model 240HT
Note: The 240LT has a flexible power cord and plug for 115VAC/60/1 operation.

2
Installation - 240HT
Electrical Connections - 240HT
NOTE
Model 240LT is equipped with a 4 ft. power cord and plug.
This model requires a 115VAC,15A receptacle.
Refer to the 240LT installation section beginning on page 23.
1. Power connections are made at the Main Terminal
Block (MTB) which is located at the lower right-hand
side of the glasswasher directly behind the lower
front access panel
2. Remove the MTB cover and 2 screws holding the
MTB to the machine base. Then, pull the MTB up
and forward to make the electrical connections.
3. Provide a 3 ft. service loop in the supply cable for
machine servicing.
4. Re-install the MTB and the lower front access panel
to complete the installation.
5. Refer to the connection diagrams on the next page
for wiring instructions.
ATTENTION
A qualified electrician must connect the main incoming power to the glasswasher in accordance
with all local codes and regulations or in the absence of local codes
in accordance with the National Electrical Code.
Main Terminal Block (MTB)
(shown extended from machine)
WARNING:
Electrocution or serious injury may result when working on an
energized circuit.
Disconnect power at the main breaker or service disconnect
switch before working on the circuit.
Lock-out and tag the breaker to indicate that work is being
performed on the circuit.

3
240HT - Installation
Electrical Connections - 240HT
See the diagram below and on the next page to connect main incoming power to the
Model 240HT glasswasher.
L1 L2 N
208-240
VAC
115VAC
GND
SINGLE PHASE POWER CONNECTION
Model 240HT
HOW TO CONNECT 1 PHASE POWER
1. Check the data plate on the front of the
dishwasher for the phase of the machine.
.
2. Remove the lower access panel.
3. Pull power connection box forward and out.
4. The Main Terminal Block has connections
for L1, L2, Neutral and Ground.
5. Connect ground, then connect
L1, L2 to 208-230VAC.
6. Connect a current carrying neutral to N.
7. Main Power connections are complete.
If the data plate says the machine is 1 Phase,
then connect a 1 PH power supply.

4
Booster Heater/Wash Tank Heater Interlock Circuit
The booster heater/wash tank heater interlock circuit removes power from the wash tank heater
whenever the booster heater contactor energizes. The illustration below shows how the booster
heater contactor is wired. The booster heater contactor is located on the backside of the control
panel bracket which is located behind the lower front access panel.
Interlock Circuit Operation
1. The glasswasher lls with water when the
main power switch on the glasswasher is
turned on. The booster heater thermostat
calls for heat which energizes the booster
heater contactor.
2. The auxiliary contact on the top of
the contactor opens and removes
power from the wash tank
heater.
3. When the booster heater thermostat
is satised, the booster heater
contactor deenergizes and the
auxiliary contacts close
applying power to the wash
tank heater.
4. This operation is repeated whenever
the booster thermostat calls for heat.
Installation - 240HT
Electrical Connections - 240HT (continued)
Do not connect
power to L3
L1 L2 L3 N
Main Terminal Block (MTB)
To
auxiliary
contactor
contact
115VAC
To booster
heater contactor
1PH
208-240VAC
To wash
tank heater
115VAC
From
main
terminal block
115 VAC
From
main
terminal block
1 PH
208-230VAC
L1
L1
N
L2
To booster heater
1 PH 208-230VAC
1H2 1H1
Auxiliary
Contactor
Contact
Booster Heater
Contactor
ATTENTION ELECTRICIAN:
The Main Terminal Block (MTB) is a 4-pole block.
The main incoming power is a 3-wire connection
which includes a current-carrying neutral. Connect
the 1PH power as shown on the previous page).
The diagram at right illustrates how power is
distributed to the booster heater contactor and the
auxiliary contactor contact.
The data plate on the lower front cover of the
glasswasher lists the correct power requirements.

5
240HT - Installation
Water Connections- 240HT
1. The 240HT has a 7ft. exible hot water ll hose with a 3/4" female garden hose connector.
2. A 1/2" or larger main incoming supply line should be installed to the glasswasher.
3. A 1/2" or larger shut-off valve should be installed in the water supply line as close possible
to the glasswasher for servicing.
4. A pressure regulating valve, PRV must be installed after the shut-off service valve if the
incoming ow pressure exceeds 20-22 psi.
5. The hot water supply must provide a minimum of 140°F/60°C, measured at the glasswasher
for the 40°F/ 22°C rise booster. For the 70°F/39°C rise booster the hot water supply must
provide a minimum of 110°F/43°C measured at the glasswasher.
NOTE
Plumbing connections must comply with national, local plumbing and sanitary codes.
ATTENTION
Make sure that the flexible water supply and drain hoses are not kinked.
1. All models have a 6ft. 5/8" I.D. drain hose. The maximum drain height connection must
not exceed 3 ft.[0.9 m].
2. The drain hose is located at the rear of the glasswasher.
3. The drain hose is secured to the rear of the machine by a clamp to maintain a goose-
neck bend in the drain hose.
DO NOT KINK, STRETCH, OR LENGTHEN THE DRAIN HOSE.
4. Install the drain hose to a "WYE" drain tting.
Connection to a "TEE" tting will prevent the glasswasher from draining completely.
5. The maximum drain ow is 15 US gpm.
6. Make sure the drain hose does not kink. Kinks will prevent the glasswasher
from draining completely.
ATTENTION
The glaswasher will not drain correctly if the drain hose is connected to a disposer.
Connect the drain hose
to a WYE fitting.
Do not connect the drain
hose to a TEE fitting.
Drain Connections - 240HT

6
Initial Start-up - 240HT
Check List
Make sure the scrap screen is in place.
Make sure the overflow guard is in place.
1. Make sure the glasswasher is permanently located.
2. Make sure all utility connections are complete.
3. Make sure the exible drain hose and the hot water ll hose are not kinked.
4. Remove any protective lm from glasswasher.
5. Check the interior for foreign material.
6. Remove the scrap screen and check the sump for foreign material.
7. Make sure the chemical supply containers are full and that the chemical pick-up tubes
are installed in the proper containers.
8. Make sure the scrap screen is in place.
9. Make sure the spray arms are in place and that they spin freely.
10. Close the glasswasher door.
11. Turn hot water supply on and check for leaks in the main water supply piping connected
to the glasswasher.
ATTENTION
Make sure the overow guard is in place. Model 240HT only.

7
Filling the Booster
Booster Fill Switch
240HT - Initial Start-up
ATTENTION
The built-in booster tank was drained prior to shipment and must be filled
before operating the machine.
Booster Fill Switch
The booster tank is refilled using the Booster Fill Switch. It is located behind the lower front
access panel and on the right-side of the bracket that holds the chemical dispensing pumps.
To fill the booster tank:
1. Remove the lower front access panel.
2. Locate the booster ll switch and note the 3 switch positions (ON - OFF - FILL).
3. Turn the main power supply on.
DO NOT TURN THE GLASSWASHER POWER SWITCH ON.
4. Push and hold the booster ll switch DOWN to the
booster ll position until water is heard spraying
inside the glasswasher wash compartment.
5. Release the booster ll switch and push it UP
to the ON position.
6. Booster ll is complete.
Detergent Rinse-aid
Wash Thermo
Booster Thermo
Booster
Fill
Switch
ON
OFF
FILL
The booster fill switch is located on the right-side of the bracket holding the chemical dispensing pumps.
ON
OFF
BOOSTER
FILL
ON
OFF
BOOSTER
FILL

8
1. The 240HT is equipped with a built-in detergent dispensing pump and rinse-aid dispensing pump.
(See the photographs below.)
2. The pumps are located on a center bracket behind the lower-front access panel.
3. Each pump is equipped with 6 feet [1.8 m] of pick-up supply tubing, a stiffener tube, and a strainer.
4. A red label marked DETERGENT is attached to the detergent pump inlet tubing.
5. A blue label marked RINSE-AID is attached to the rinse-aid pump inlet tubing.
6. The detergent enters the wash tank compartment through a tting at the right rear of the wash
compartment.
7. The detergent supply should be a non-chlorinated liquid detergent.
8. The rinse-aid enters the nal rinse piping through a tting located on the upper-right rear side of the
glasswasher. The tting is located near the vacuum breaker.
Initial Start-Up - 240HT
ATTENTION
Contact a local chemical supplier for detergent and rinse-aid chemicals.
The detergent should be a non-chlorinated liquid detergent.
The chemical dispensing pumps must be adjusted by the chemical supplier.
Chemical Dispensing Pumps
Model 240HT Hot Water Sanitization:
For Model 240HT, the dispensing pumps are located
on the center bracket behind the lower-front access
panel.
A stiffener tube, strainer and 6 ft. [1.8 m] of
pick-up tubing are supplied with the built-in
detergent and rinse-aid pumps.

9
MD240-HT - Initial Start-Up
9. The chemical supplier will choose the appropriate liquid rinse-aid.
10. The factory chemical dispensing pump settings are only approximations; therefore,
your chemical supplier must adjust the dispensers for the supplied product.
11. Place the chemical supply containers as close to the glasswasher as possible.
12. Do not elevate the chemical containers above the nished oor.
Chemical Dispensing Pumps
Model 240HT Hot Water Sanitization (continued)
For Model 240HT detergent enters the wash tank
compartment through a fitting on the rear wall of the wash tank
compartment.
The rinse-aid enters the final rinse piping at the rear of
the glasswasher near the vacuum breaker.

10
The chemical dispensing pump supply lines must be primed before they will pump the chemicals
into the machine. The 240HT features a 2-position PRIME push button located on the front control
panel to prime the chemical dispensing pumps.
To Prime the Dispensing Pumps:
1. Make sure the chemical containers are full and the correct pick-up tubes are in the containers.
2. Turn the glasswasher power switch ON.
3. The switch will illuminate and the glasswasher will ll with water.
4. Open the glasswasher door, then push and hold the prime push button UP to the DET position until
detergent is observed entering the wash tank compartment from the detergent injection point at the
right-rear of the wash tank.
5. Release the push button.
6. Push and hold the prime push button DOWN to the R/A position for 3 minutes.
7. Release the push button.
8. Run one empty wash cycle to remove accumulated chemicals from the wash compartment.
Chemical Dispensing Pumps
Priming the Chemical Dispensing Pumps
Initial Start-Up - 240HT
DET
R/A
PRIME START
RINSE TEMP
ON
I
O
POWER
OFF / DRAIN
0
20
40 60
80
100
120
140
160
180
200
220
100
80
60
40
20
WASH TEMP
0
20
40 60
80
100
120
140
160
180
200
220
100
80
60
40
20
Prime Switch
DET
R/A
PRIME
DET
R/A
PRIME
Push up to prime detergent. Push down to prime rinse-aid.

11
MD240-HT - Initial Start-Up
Chemical Dispensing Pumps
The chemical dispensing pump speeds are not set at the factory. Variations in the
type of chemicals supplied by the chemical supplier always require that the supplier
make nal adjustments for the products supplied.
1. Adjustment screws are provided for the dispensing pumps and for the wash tank ll.
They are located on the right-side of the glasswasher behind the lower front access panel.
2. Make sure the chemical containers are full and the pick-up tubes are in the proper
containers.
3. Turn the glasswasher power switch ON. The switch will illuminate and the glasswasher
will ll with water.
4. Run a normal glasswasher cycle and test detergent and rinse-aid concentrations
according to the chemical supplier's instructions.
5. Each dispensing pump has a clearly marked
adjustment screw. Turn the screw CW to
increase the time of the dispensing pump
and CCW to reduce the dispensing pump
time.
6. The Fill adjustment screw will provide a
small change in the tank water level.
If a large adjustment is needed, then
check the incoming water pressure and
make sure the ll hose is not kinked. If these
items are okay, then the size of the incoming
water supply should be evaluated.
7. The 240HT uses detergent and rinse-aid
only, a sanitizer is not required.
Chemical Dispensing Pump Speed and Tank Fill Adjustments
CAUTION
Excessive pressure to the potentiometers when adjusting
can result in bent or broken adjusting screws.

12
Operation
Model 240HT
Operation - 240HT
The illustrations below show the layout of the 240HT control panel and the nal rinse pressure
gauge. Normal Wash Mode instructions are on the next page.
This machine has a Rinse Sentry feature to ensure the nal rinse water temperature is maintained
at a minimum of 180-195ºF/82-91ºC during the final rinse. The rinse sentry feature is explained on
page 14.
DET
R/A
PRIME START
RINSE TEMP
ON
I
O
POWER
OFF / DRAIN
WASH TEMP
Final Rinse
Pressure Gauge
DET
R/A
PRIME START
RINSE TEMP
ON
I
O
POWER
OFF / DRAIN
0
20
40 60
80
100
120
140
160
180
200
220
100
80
60
40
20
WASH TEMP
0
20
40 60
80
100
120
140
160
180
200
220
100
80
60
40
20
Wash Temperature
Gauge Final Rinse Temperature
Gauge
In-cycle Light Start
Push button
Power Switch
ON
OFF/DRAIN
Prime Switch
10
0
30
20
PSI
60
50
40
Control Panel