Moyer Diebel MH-60M3, MH-6NM3, MH-6LM3 Service Manual
Simply Engineered Better
For machines beginning with serial no. 89519 and above
This manual supersedes
P/N 112425, dated April, 1997.
Remove and destroy previous edition.
Technical Manual
Door-Type
Dishwasher
Model
MH-60M3
High T emperatur e
with Built-in Booster
February , 1998
P . O. Box 4183
Winston-Salem, North Carolina 27115-4183
336/661-1992 Fax: 336/661-1660
MH-6NM3
High T emperatur e
MH-6LM3
Low Temperature
Machine Serial No.
Manual P/N 112425 REV. B
2674 N. Service Road
Jordan Station, Ontario, Canada LOR 1SO
905/562-4195 Fax: 905/562-4618
Moyer Diebel
Complete the information below so it will be available for quick reference.
Model Number Serial Number
Voltage and Phase
Moyer Diebel Parts Distributor Phone
(if applicable)
Moyer Diebel Service Agency Phone
Moyer Diebel Service:
Moyer Diebel, US
Phone: 1(336) 661-1992
1(800) 228-8350
Fax: 1(336) 661-1660
Moyer Diebel, Limited
Phone: 1(905) 562-4195
1(800) 263-5798
Fax: 1(905) 562-4618
Note: When calling to order parts, be sure to have the model number, serial number,
voltage and phase of your machine, along with your customer account number.
Machine Data Plate with
Model & Serial Number
located on the front panel.
Machine
COPYRIGHT ©1998 by Moyer Diebel
Revision History
Revision Revised Serial Number Comments
Date Pages Effectivity
4/27/97 — 89519 MH-M3 control circuit is 120VAC
MH-M2 series was 220VAC
1/30/98 All 89519 Reissue of manual and
replacement parts lists
This manual replaces temporary manual
issued 4/5/97
7/1/98 65 — Corrected P/N’s for fuses
REVISONS
1
CONTENTS
LIMITED WARRANTY ............................................................................................................... 4
INTRODUCTION ......................................................................................................................... 5
INSTALLATION........................................................................................................................... 8
INITIAL START-UP ..................................................................................................................... 16
OPERATION SUMMARY ........................................................................................................... 22
CLEANING................................................................................................................................... 23
TROUBLESHOOTING ................................................................................................................ 25
BASIC SERVICE .......................................................................................................................... 27
REPLACEMENT PARTS ............................................................................................................. 33
CONTENTS
Model Number....................................................................................................................6
Standard Equipment ........................................................................................................... 6
Options................................................................................................................................ 6
Electrical Power Requirements .......................................................................................... 7
Unpack the Dishwasher ...................................................................................................... 8
To Change from Straight-through Operation to Corner Operation .................................... 9
Electrical Connections ........................................................................................................ 10
Plumbing Connections........................................................................................................ 12
Water Connections ......................................................................................................... 12
Drain Connections.......................................................................................................... 13
Chemical Connections.................................................................................................... 14
Cleaning Schedule .............................................................................................................. 23
Deliming Process ................................................................................................................24
ELECTRICAL SCHEMATICS ..................................................................................................... 69
LIST OF FIGURES
Figure 1 – Remove Front Panel .................................................................................................. 8
Figure 2 – Placement for Corner Operation ............................................................................... 9
Figure 3 – Change the Track Assembly ..................................................................................... 9
a — Straight-through Configuration
b — Corner Configuration
Figure 4 – Electrical Connection Location ................................................................................ 10
Figure 5 – Hinged Control Panel................................................................................................ 11
Figure 6 – Main Terminal Block ................................................................................................ 11
Figure 7 – Hot Water Connection (MH-60 Only) ...................................................................... 12
Figure 8 – Hot Water Connection (MH-6N, MH-6L Only) ....................................................... 12
2
CONTENTS
LIST OF FIGURES (cont.)
Figure 9 – Drain Hose Connection............................................................................................. 13
Figure 10 – Chemical Dispenser Signal Terminal Block ............................................................. 14
Figure 11 – Chemical Signal Connection Points .........................................................................14
Figure 12 – Detergent Probe Injection Points, 1/2" .....................................................................15
Figure 13 – Rinse Aid and Sanitizer Injection Points .................................................................. 15
Figure 14 – Fuses .........................................................................................................................28
Figure 15 – Motor Overload.........................................................................................................28
Figure 16 – Cycle Timer...............................................................................................................29
Figure 17 – Cycle Timer Chart..................................................................................................... 29
Figure 18 – Fill Timer .................................................................................................................. 29
Figure 19 – Heater Element Wiring ............................................................................................. 30
Figure 20 – Pump Motor Wiring Diagrams ................................................................................. 31
Figure 21 – Pump Seal Replacement ...........................................................................................32
Figure 22 – Doors and Panels ......................................................................................................34
Figure 23 – Door Guides, Stops and Lift Bracket........................................................................ 36
Figure 24 – Door Handle, Spring Assembly and Safety Switch.................................................. 38
Figure 25 – Track Assembly ........................................................................................................40
Figure 26 – Wash/Rinse Spray Piping.......................................................................................... 42
Figure 27 – Wash/Rinse Spray Arms ...........................................................................................44
Figure 28 – Drain Assembly and Scrap Screens ..........................................................................46
Figure 29 – Wash Tank Heat and Thermostats............................................................................. 48
Figure 30 – Electric Booster and Thermostats (MH-60 Only)..................................................... 50
Figure 31 – Lower Fill Piping Assembly (MH-60 Only)............................................................. 52
Figure 32 – Upper Fill Piping Assembly (MH-60/6N Only) .......................................................54
Figure 33 – Lower Fill Piping Assembly (MH-6N/6L Only) ......................................................56
Figure 34 – Upper Fill Piping Assembly (MH-6L Only)............................................................. 58
Figure 35 – Pump Assembly ........................................................................................................60
Figure 36 – Control Panel and Gauges......................................................................................... 62
Figure 37 – Control Cabinet......................................................................................................... 64
Figure 38 – Dishracks and PRV ................................................................................................... 66
Figure 39 – Three Phase Electrical Schematic............................................................................. 69
Figure 40 – Single Phase Electrical Schematic ............................................................................ 70
3
WARRANTY
LIMITED WARRANTY
Champion Industries/Moyer Diebel Limited, P.O. Box 4183, Winston-Salem, North Carolina 27115, and P. O. Box 301, 2674
North Service Road, Jordan Station, Ontario, Canada L0R 1S0 warrants machines, and parts, as set out below.
Warranty of Machines: Champion Industries/Moyer Diebel Limited 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 fifteen (15) months after the date of
shipment by Champion/Moyer Diebel, whichever occurs first. [See below for special provisions relating to Model Series DF
and SW.] The warranty registration card must be returned to Champion/Moyer Diebel within ten (10) days after installation.
If warranty card is not returned to Champion/Moyer Diebel within such period, the warranty will expire after one year from
the date of shipment.
Champion/Moyer Diebel 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, Champion/Moyer Diebel, at its election,
will either repair or replace the defective machine or accept return of the machine for full credit; provided, however, as to
Model Series DF and SW, Champion/Moyer Diebel'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 first. In the event that Champion/Moyer
Diebel elects to repair, the labor and work to be performed in connection with the warranty shall be done during regular
working hours by a Champion/Moyer Diebel authorized service technician. Defective parts become the property of
Champion/Moyer Diebel. Use of replacement parts not authorized by Champion/Moyer Diebel will relieve Champion/
Moyer Diebel of all further liability in connection with its warranty. In no event will Champion/Moyer Diebel's warranty
obligation exceed Champion/Moyer Diebel's charge for the machine. The following are not covered by Champion/Moyer
Diebel'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. Adjustments to chemical dispensing equipment.
h. Cleaning of valves, strainers, screens, nozzles, or spray pipes.
i. Performance of regular maintenance and cleaning as outlined in operator’s guide.
j. Damages resulting from water conditions, accidents, alterations, improper use, abuse,
Examples of the defects not covered by warranty include, but are not limited to: (1) Damage to the exterior or interior finish
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.
tampering, improper installation, or failure to follow maintenance and operation procedures.
Warranty of Parts: Champion/Moyer Diebel warrants all new machine parts produced or authorized by Champion/Moyer
Diebel 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 Champion/Moyer Diebel will replace the defective
part without charge.
DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY. CHAMPION/MOYER DIEBEL'S
WARRANTY IS ONLY TO THE EXTENT REFLECTED ABOVE. CHAMPION/MOYER DIEBEL MAKES NO
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF
MERCHANTABILITY, OR FITNESS OF PURPOSE. CHAMPION/MOYER DIEBEL 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 CHAMPION/MOYER DIEBELDISHWASHING MACHINES AND CHAMPION/MOYER DIEBEL PARTS, AND ALL OTHER REMEDIES ARE EXCLUDED, INCLUDING ANY LIABILITY FOR INCIDENTALS OR CONSEQUENTIAL DAMAGES.
Champion/Moyer Diebel does not authorize any other person, including persons who deal in Champion/Moyer Diebel
dishwashing machines, to change this warranty or create any other obligation in connection with Champion/Moyer Diebel
Dishwashing Machines.
rev. 8699
4
INTRODUCTION
Welcome to Moyer Diebel...
and thank you for allowing us to take care of
your dishwashing needs.
This manual covers the door-type dishwasher ,
Models MH-60, MH-6N, MH-6L.
Your machine was completely assembled,
inspected, and thoroughly tested at our factory
before it was shipped to your installation site.
This manual contains:
• Installation Instructions
• Operation and Cleaning Instructions
• Troubleshooting Guide
• Basic Service Information
• Replacement Parts Lists
• Electrical Schematics
INTRODUCTION
All information, illustrations and specifications
contained in this manual are based upon the
latest product information available at the time
of publication. Moyer Diebel 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.
For your protection, factory authorized parts
should always be used for repairs.
Replacement parts may be ordered directly
from your Moyer Diebel authorized parts
distributor or authorized service agency . When
ordering parts, please supply the model number, serial number, voltage, and phase of your
machine, the part number, part descriptions and
quantity.
5
GENERAL
Model Numbers
MH-60, MH-6N, MH-6L
The MH-60 model is a high temperature
(180°F/82°C rinse) sanitizing model with
booster.
The MH-6N model is a high temperature
(180°F/82°C rinse) sanitizing model without
booster.
The MH-6L is a low temperature (Min. 120°F/
49°C-140°F/60°C Optimum) sanitizing model
for use with a sodium hypochlorite (Chlorine)
based sanitizer at a minimum concentration of
50 PPM in the final rinse.
Standard Equipment includes:
MH-60, MH-6N, MH-6L
• Automatic tank fill and start
• Built-in electric booster heater (MH-60 only)
• Field convertible to corner model
• Electric tank heat
• Balanced three door lift system
• Low-water tank heat protection
• 1-hp drip-proof pump motor
• Door safety switch
• Common utility connections
• Two dish racks (peg and flat bottom)
• Detergent/chemical connection provisions
• Stainless steel front and side panels
• 60-second time cycle
• 1-1/2" O.D. gravity drain connection
• Water pressure reducing valve (MH-60 only)
• Interchangeable upper and lower spray arms
Options (MH-60 only)
• Electric booster (70°F/39°C temperature
rise) heater for 110°F/43°C supply water
• Steam injector or steam coil tank heat
(steam booster 40°F/23°C-70°F/39°C rise)
Accessories
Additional dishracks:
Dish rack (peg) P/N 101285
Silverware rack (flat bottom) P/N 101273
3/4" Pressure reducing valve (PRV) P/N 112387
6
GENERAL
Electrical Power Requirements:Fig Electric Heat/Electric Booster
Model Voltage Booster Rise Machine Power Requirement
(MH-60 Only) Full Load Amps (125% Service Factor)
MH-6N/MH-6L 115/60/1 — 48 Amps 60 Amps
MH-6N/MH-6L 208/60/1 — 23 Amps 29 Amps
MH-6N/MH-6L 220/60/1 — 23 Amps 29 Amps
MH-6N/MH-6L 230/60/1 — 23 Amps 29 Amps
MH-6N/MH-6L 240/60/1 — 24 Amps 30 Amps
MH-6N/MH-6L 208/60/3 — 12 Amps 15 Amps
MH-6N/MH-6L 220/60/3 — 13 Amps 16 Amps
MH-6N/MH-6L 230/60/3 — 13 Amps 16 Amps
MH-6N/MH-6L 240/60/3 — 13 Amps 16 Amps
MH-6N/MH-6L 380/60/3 — 7 Amps 9 Amps
MH-6N/MH-6L 415/60/3 — 8 Amps 10 Amps
MH-6N/MH-6L 480/60/3 — 6 Amps 8 Amps
MH-6N/MH-6L 575/60/3 — 5 Amps 6 Amps
MH-60 115/60/1 — — —
MH-60 208/60/1 40°F/23°C 59 Amps 74 Amps
MH-60 220/60/1 40°F/23°C 61 Amps 76 Amps
MH-60 230/60/1 40°F/23°C 63 Amps 79 Amps
MH-60 240/60/1 40°F/23°C 65 Amps 81 Amps
MH-60 208/60/3 40°F/23°C 33 Amps 41 Amps
MH-60 220/60/3 40°F/23°C 35 Amps 44 Amps
MH-60 230/60/3 40°F/23°C 36 Amps 45 Amps
MH-60 240/60/3 40°F/23°C 37 Amps 46 Amps
MH-60 380/60/3 40°F/23°C 20 Amps 25 Amps
MH-60 415/60/3 40°F/23°C 20 Amps 25 Amps
MH-60 480/60/3 40°F/23°C 17 Amps 21 Amps
MH-60 575/60/3 40°F/23°C 14 Amps 18 Amps
MH-60 115/60/1 — — —
MH-60 208/60/1 — — —
MH-60 220/60/1 — — —
MH-60 230/60/1 — — —
MH-60 240/60/1 — — —
MH-60 208/60/3 70°F/39°C 50 Amps 63 Amps
MH-60 220/60/3 70°F/39°C 52 Amps 65 Amps
MH-60 230/60/3 70°F/39°C 54 Amps 68 Amps
MH-60 240/60/3 70°F/39°C 56 Amps 70 Amps
MH-60 380/60/3 70°F/39°C 30 Amps 38 Amps
MH-60 415/60/3 70°F/39°C 33 Amps 41 Amps
MH-60 480/60/3 70°F/39°C 28 Amps 35 Amps
MH-60 575/60/3 70°F/39°C 23 Amps 29 Amps
7
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.
NOTE:
Refer to: To change from Straight-through
Operation to Corner Operation on the next
page if your machine will be placed for
corner operation.
3. Level the machine (if required) by placing a
level on the top of the machine and adjusting
the feet. Level the machine front-to-back and
side-to-side.
4. Remove the dishracks from the interior of
the machine.
5. Refer to Fig. 1. Remove (2) screws that hold
the front panel. Remove the front panel in
preparation for service connections.
POWER
FILL
CYCLE
EXTENDED
WASH
RINSE
WASH
Figure 1
Remove Front Panel
WARNING!
TURN OFF POWER BEFORE
SERVICING MACHINE
8
To Change from
Straight-through Operation
to Corner Operation
The dishwasher is shipped from the factory
for straight-through operation. The following
instructions explain how to change the dishwasher
for corner operation.
Refer to Fig. 2
1. Place the dishwasher so that operator
controls are readily accessible.
2. Minimum clearance from any wall is
5-1/4" (133mm).
INSTALLATION
WALL
5-1/4"[133mm] MIN.
WALL
FRONT
POWER ON
SWITCH
5-1/4"[133mm] MIN.
Note:
Power switch is
readily accessible.
Do not place the dishwasher closer than 5-1/4" (133mm) to any wall.
Figure 2
Placement for Corner Operation
Refer to Fig. 3a-3b and perform the steps below.
1. Remove the front rack guide (A).
Discard the square spacers.
2. Move front rack guide (A) to the left side of
the rack tracks. (See Fig. 3b) Use existing
hardware.
3. Unbolt the track (B) and rack support rod (C).
4. Remove and save the two remaining fasteners
from rear track.
5. Bolt (B) and (C) as shown in Fig. 3b.
Change the Track Assembly
Figure 3
5-1/4"[133mm] MIN.
POWER ON
SWITCH
FRONT
WALL
5-1/4"[133mm] MIN.
WALL
C
B
A
Figure 3a
Straight-through Configuration
A
C
B
Figure 3b
Corner Configuration
9
INSTALLATION
INSTALLATION (Cont.)
Electrical Connections
WARNING:
!
Electrical and 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.
Refer to Fig. 4
Electrical knock-out
lower rear corner
2. A knock-out is provided at the lower right
rear corner (as viewed from the front) for
the electrical service connection. A fused
disconnect switch or circuit breaker
(supplied by others) is required to protect
the power supply circuit.
Figure 4
Electrical Connection Location
10
Electrical Connections (Cont.)
Refer to Fig. 5
3. Remove (2) lower screws from the front
panel of the machine to expose the electrical controls. Remove (2) screws on the
control panel support. Swing the hinged
control panel forward.
INSTALLATION
Figure 5
Hinged Control Panel
Refer to Fig. 6
4. Three phase or single phase incoming
power wiring 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.
Electrical Power Connection
Figure 6
Main T erminal Block
11
INSTALLATION
INSTALLATION (Cont.)
Plumbing Connections
NOTE:
Plumbing connections must comply with
all applicable sanitary and plumbing
codes.
Water Connections
1. All MH series dishwashers require a single,
hot water supply.
The hot water connection to all MH
series dishwashers is 3/4" NPT.
The connection is made from
underneath the dishwasher.
The following minimum water
temperatures are recommended:
MH-60 with built-in 40° rise electric
booster (Minimum 140°F/60°C)
(Min./Max. flow pressure
20-22 PSI/138-151.8 kPa)
MH-60 with built-in 70° rise electric
booster (Minimum 110°F/43°C)
(Min./Max. flow pressure
20-22 PSI/138-151.8 kPa)
MH-6N without built-in booster
(Minimum 180°F/70°C)
(Min./Max. flow pressure
20-22 PSI/138-151.8 kPa)
12"
[305mm]
FLOOR
Figure 7
Hot Water Connection
(MH-60 Only)
3/4" NPT
12"
[305mm]
FLOOR
12
MH-6L low temperature
(Minimum 120
140°F/60°C Optimum)
(Min./Max. flow pressure
20-22 PSI/138-151.8 kPa)
Refer to Figs. 7 and 8
°F/49°C-
Figure 8
Hot Water Connection
(MH-6N, MH-6L Only)
3/4" NPT
Water Connections (Cont.)
2. A manual shut-off valve for steam and 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.
3. Install a 3/4" pressure reducing valve (PRV)
in the water supply line if flow pressure
exceeds 20-22 PSI/138-151.8 kPa.
A PRV is standard equipment on Model
MH-60. A PRV is not standard equipment on
Models MH-6N, MH-6L.
Drain Connections
INSTALLATION
Refer to Fig. 9
1. MH series models are GRAVITY DRAIN
machines equipped with a
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 all models must not
exceed 11" (280mm) above floor level.
4. The drain connection is made to the
dishwasher from underneath the machine
through an access hole in the machine
base.
Ventilation
NOTE:
Ventilation must comply with local sanitary
and plumbing codes.
11" [280mm]
Above floor level
Figure 9
Drain Hose Connection
1-1/2" O.D.
(Max flow rate = 15 gal/min-56.8 liters/min)
CAUTION:
!
Exhaust air should not be vented into a
wall, ceiling, or concealed space of a
building. Condensation can cause
damage.
13
INSTALLATION
INSTALLATION (Cont.)
Chemical Connections
NOTE:
Consult a qualified chemical supplier
for your chemical needs.
Refer to Fig. 10
1. A chemical signal terminal block is
supplied for chemical dispensing
equipment.
2. The terminal block is located below
the control panel fuse block.
Refer to Fig. 11
3. The detergent signal is limited
to a maximum load of 1 Amp.
Signal voltage is 115VAC.
4. The Rinse aid/Sanitizer
signal is limited to a maximum load of 1 Amp.
Signal voltage is 115VAC.
COMMON
Figure 10
Chemical Dispenser
Signal
Terminal Block
Detergent Signal Connection Point
1 Amp Max Load/115VAC
Common Return
RINSE
DETERGENT
Rinse aid/Sanitizer
Signal Connection Point
1 Amp Max load/115VAC
14
Figure 11
Chemical Signal
Connection Points
Chemical Connections (Cont.)
Refer to Fig. 12
5. A 1/2" detergent probe injection point is
provided at the rear and left side of the
dishwasher.
6. Detergent may be added manually if your
dishwasher is not equipped with
dispensing equipment. Consult your
chemical supplier for recommended
amounts.
INSTALLATION
Refer to Fig. 13
7.
MH-60, 6N, 6L
A 1/4" NPT rinse aid injection point is
provided in the final rinse manifold.
Use a liquid rinse aid.
The manifold is located on the top right
side of the dishwasher.
8.
MH-6L Only
A 1/8" NPT sanitizer injection point is
provided in the final rinse manifold.
Models MH-60 and MH-6N do not
require sanitizer.
9. Use a sodium hypochlorite (Chlorine)
based sanitizer at a minimum concentration
of 50PPM in the final rinse.
10. Use chlorine test papers to verify and
monitor the 50PPM chlorine level.
Figure 12
Detergent Probe
Injection Points, 1/2"
MH-60, 6N
1/4" NPT Rinse aid
Injection Point
Model MH-60, 6N, 6L
WARNING:
!
Never premix rinse aid with the
sanitizing agent. Mixing may cause
hazardous gases to form.
CAUTION:
!
Some metals, including silver, aluminum
and pewter, are attacked by sodium
hypochlorinte (chlorine). Avoid cleaning
these metals in a MH-6L.
MH-6L
1/8" NPT Sanitizer
Injection Point
Model MH-6L only
Figure 13
Rinse Aid and
Sanitizer Injection Points
(Top of Dishwasher)
15
INITIAL ST ART -UP
INITIAL START-UP
Complete the installation
After plumbing and electrical connections are made, follow
the steps below to complete the installation of your dishwasher.
1. Remove the white protective covering from the
exterior of the machine.
2. Remove any foreign material from inside
the machine.
3. Make sure dishwasher power switch is off.
4. Turn main water supply on.
5. Turn main power on at the main power
service disconnect switch.
1
Install the Scrap Screens
and Drain-Overflow Assembly
Install scrap screens.
Make sure rubber stopper
is secure on the drainoverflow assembly.
Make sure the drain-overflow
seats securely in the
tank bottom.
MAKE SURE DOORS
ARE FULLY CLOSED.
2
The controls are located
on the front of the dishwasher.
A- On/Off power switch
B- Power indicator Light
C- In-cycle light
D- Extended wash switch
E- Wash water
temperature gauge
F- Final rinse
pressure gauge
A
E
POWER
OFF
WASH
B
C
EXTENDED
CYCLE
RINSE PRESSURE
WASH
D
F
16
INITIAL START-UP (Cont.)
WASH
EXTENDED
WASH
CYCLE
POWER
OFF
RINSE PRESSURE
INITIAL ST ART -UP
3
THE POWER SWITCH IS
ON DURING INITIAL FILL.
Make sure the doors are fully closed.
Push the On/Off power
switch to the UP position.
THE DISHWASHER FILLS
AUTOMATICALLY.
NOTE:
The dishwasher will fill automatically each
time the power is turned off even if the
dishwasher is full of water.
4
Note that the power indicator
light is illuminated.
POWER
OFF
WASH
EXTENDED
CYCLE
RINSE PRESSURE
WASH
5
Check Wash
Water T emperature
The wash tank heater and
the (booster tank heater, MH-60 only)
will begin to heat the water in
the dishwasher.
Wait approximately 10 minutes
for the wash tank water to
reach operating temperature.
The temperature should be a minimum
of 150°F/66°C for (MH-60, MH-6N).
The MH-6L requires a minimum of
120°F/49°C. However, a minimum of
140°F/60°C is optimum for the MH-6L.
Prescrap the dishes. Load ware into
the dishrack. Open the doors, insert the
rack into the dishwasher .
POWER
OFF
WASH
EXTENDED
CYCLE
RINSE PRESSURE
WASH
17
INITIAL ST AR T-UP
INITIAL START-UP (Cont.)
6
Fully close the dishwasher doors.
The dishwasher will begin the
automatic cycle.
Opening the doors anytime
during the cycle will stop the
dishwasher.
Closing the doors will resume
the automatic cycle where it
left off.
The cycle times are listed below:
Wash = 45 seconds
Dwell = 1 second
Final rinse = 14 seconds
7
Note that the in-cycle light
is lit during the automatic
dishwasher cycle.
POWER
OFF
WASH
EXTENDED
CYCLE
RINSE PRESSURE
WASH
18
INITIAL START-UP (Cont.)
8
Check Final Rinse
Water Temperature
Check the final rinse water
temperature during the
final rinse cycle.
The final rinse water
temperature gauge is located
in the final rinse piping at
the top of the dishwasher.
INITIAL ST ART -UP
100
50
0
150
200
250
The final rinse water temperature should be a minimum of
180°F/82°C for (MH-60, MH-6N).
The optimum final rinse temperature
for (MH-60, MH-6N) is
180-195°F/82-91°C.
The MH-6L requires a minimum final
rinse temperature of 120°F/49°C.
However, a minimum final rinse temperature of
140°F/60°C is optimum for the MH-6L.
9
Check Final Rinse
Water Pressure
The final rinse water pressure gauge
should indicate a flowing pressure of
20-22 PSI/138-151.8 kPa during the
final rinse cycle for all models.
POWER
OFF
WASH
EXTENDED
CYCLE
RINSE PRESSURE
WASH
A pressure reducing valve (PRV) is
required if flow pressure exceeds
20-22 PSI/138-151.8 kPa.
19
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