Changed item 12 on pg. 36 to 05700-003-07-76.
Added 05700-004-23-78, 05700-004-23-79, and 05700-004-2380 to view (pg. 35) and parts list (pg. 36).
Corrected Typical Electrical Circuits for HT-180HH Ventless.
ii
NOMENCLATURE FOR THE MODELS COVERED IN THIS MANUAL
NOBLE HT-180 HH
Door-type dishmachine; electrically-heated, high-temp, hot-water sanitizing, with booster heater.
Flow Pressure (PSI) 20±5
Water Line Size (NPT)
3/4"
Drain Line Size (NPT)
1 1/2"
Minimum (other cycle times are available)
Wash Time 45
Rinse Time 15
Total Cycle Time 60
Ventless
Wash Time 45
Rinse Time 15
Dwell Time 2
Condensate Removal 30
Total Cycle Time 92
Tank Capacity:
Rinse Tank (gallons) 3.0
Rinse Tank (liters) 11.4
Wash Tank (gallons) 8.0
Wash Tank (liters) 30.3
ELECTRICAL REQUIREMENTS:
Wash Motor HP 2.0
NOTE: Always refer to the machine data plate for
specifi c electrical and water requirements.
The material provided on this page is for
reference only and is subject to change
without notice.
07610-004-26-29-E
1
SPECIFICATIONS
ELECTRICAL REQUIREMENTS
NOTE: Typical Electrical Circuit is based upon (1) 125% of the full amperage load of the machine and (2) typical
fi xed trip circuit breaker sizes as listed in the NEC 2002 Edition. Local codes may require more stringent protection
than what is displayed here. Always verify with your electrical service contractor that your circuit protection is
adequate and meets all applicable national and local codes. These numbers are provided in this manual simply
for reference and may change without notice at any given time.
NOBLE HT-180 HH:
VoltsPhaseFreq
Rinse Heater
Ratings
T otal Amps
41536012kW28A35AMP
41536014kW30A40AMP
20816012kW@240V75A100AMP
20816012kW@240V82A110AMP
23016012kW@240V81A110AMP
23016014kW@240V90A125AMP
20836012kW@240V48A60AMP
20836014kW@240V52A70AMP
23036012kW@240V52A70AMP
23036014kW@240V57A80AMP
46036012kW@480V24A30AMP
46036014kW@480V26A35AMP
Typical Electrical
Circuit
NOBLE HT-180 HH VENTLESS:
VoltsPhaseFreq
20816015.4kW87A110AMP
23016015.4kW96A125AMP
20836015.4kW55A70AMP
23036015.4kW61A80AMP
46036015.4kW28A35AMP
Rinse Heater
Ratings
T otal Amps
Typical Electrical
Circuit
07610-004-26-29-E
2
SPECIFICATIONS
DIMENSIONS (TOP MOUNT CONTROL BOX) Y-STRAINER OPTION
ONS
LEGEND
N SIZE
)
A - Drain 1 1/2" NPTF
CIAL CONNECTION)
B - Water Inlet 3/4" NPTF
C - Electrical Connection
M FLOOR
All vertical dimensions are ±1/2" due
to adjustable bullet feet.
5
28
in [727mm]
8
25 in [635mm]
17 in [432 mm]
4 in [102 mm]
C
1
25
in
4
B
[641 mm]
3 in [76 mm]
4 in
[102mm]
A
1
4
15 in [387mm]
1
25
in [641mm]
4
7
3
in
8
[97 mm]
1 in [25 mm]
B
B
73
in
[1854mm]
C
27 in
[686mm]
1
25
in
4
[641 mm]
C
3
86
in
4
[2203 mm]
3
73
in
4
[1 8 7 4 m m ]
3
76
in
8
[1941 mm]
[1740 mm
68
1
in
2
]
34 in
[864mm]
A
A
3
11
3
4
in [299mm]
07610-004-26-29-E
DIMENSIONS (TOP MOUNT CONTROL BOX) PRESSURE REGULATOR OPTION
LEGEND
A - Drain 1 1/2" IPS
B - Water Inlet 3/4" IPS
C - Electrical Connection
All vertical dimensions are +/- 1/2" due
to adjustable bullet feet.
SPECIFICATIONS
4 [102mm]
B
86 3/4 [2203mm]
73 [1856mm]
3 [76mm]
25 [637mm]
17 [432mm]
B
C
27 [686mm]
73 1/4 [1873mm]
4 [102mm]
A
25 1/4 [641mm]
3 [76mm]
1 [25mm]
B
34 [861mm]
4
11 3/4 [298mm]
15 1/4 [387mm]
A
07610-004-26-29-E
SPECIFICATIONS
DIMENSIONS (SIDE MOUNT CONTROL BOX)
LEGEND
A - DRAIN 1 1/2" IPS
B - WATER INLET 3/4" IPS
C - ELECTRICAL CONNECTION
All dimensions are in inches. All vertical
dimensions are +/- 1/2" due to adjustable
bullet feet.
4 [102mm]
A
3 [76mm]
86 1/4
156mm]
27
[687]
34
[863mm]
25 [637mm]
15 1/4 [388mm]
4 [102mm]
1 [25mm]
25 1/4 [639mm]
B
73 3/4
[1873mm]
C
B
7 1/2 [190mm]
12 3/4 [327mm]
5
12 1/4 [310mm]
A
07610-004-26-29-E
LEGEND
A - Drain 1 1/2”
B - Water Inlet 3/4”
C - Electrical Connection
All vertical dimensions are +/- 1/2” due
to adjustable bullet feet.
SPECIFICATIONS
DIMENSIONS (LEFT SIDE CONTROL BOX)
4 [102mm]
15 1/4
[388mm]
A
3 [76mm]
4 [102mm]
86 1/4
[2156mm]
25 [637mm]
B
4 [102mm]
1 [25mm]
25 1/4 [639mm]
B
27
[687]
73 3/4
[1873mm]
C
34
[863mm]
12 3/4 [327mm]
12 1/4 [310mm]
A
07610-004-26-29-E
6
SPECIFICATIONS
DIMENSIONS (VENTLESS HEAT RECOVERY)
LEGEND
A) DRAIN 1
B) WATER INLET
C) ELECTRICAL CONN ECTIONS
All vertical dimensions are ±
adjustable bullet feet
B
1
2 IPS
3
4 MIP
25
1
(639mm)
4
1/2" due to
3 (76mm)
4 101mm)
1
5
(134mm)
4
A
B
1
25
(637mm)
4
17 (432mm)
88 (2235mm)
3
2
(79mm)
4
C
93 (2362mm)
73 (1856mm)
34 (861mm)
1
15
(387mm)
4
A
3
11
4
(298mm)
07610-004-26-29-E
7
SPECIFICATIONS
TABLE DIMENSIONS
NOTE: Please remove the front dress panel from the dishmachine if mounting dishmachine for a
corner installation and attaching side tables. Corner installation will trap panel making it diffi cult to
remove.
LETTERDIM (IN)DIM (CM)
A
B
C
OPENING
A4” (MIN)10.2 CM (MIN)
B2 1/2”6.4 CM
C20 1/2”52.1 CM
D25 1/4”64.1 CM
E2 1/4”10.2 CM
F1 1/2”3.8 CM
D
G3/4”1.9 CM
TABLE DIMENSIONS
CORNER INSTALLATION
E
A
C
OPENING
D
G
F (ROLL)
C
A
B
TABLE DIMENSIONS
CONNECTION TO DISHMACHINE
D
C
TABLE DIMENSIONS STRAIGHT
OPENING
D
07610-004-26-29-E
8
SPECIFICATIONS
INSTALLATION INSTRUCTIONS
VISUAL INSPECTION: Before installing unit check container and machine for damage. A damaged container may be an
indication of damage to the machine. If there is any type of damage to both container and unit, do not throw away the
container. The dishmachine has been inspected at the factory prior to shipping and is expected to arrive in new, undamaged
condition. However, rough handling by carriers or others may result in damage to the unit while it is in transit. If such a
situation occurs, do not return the unit to the manufacturer. Instead, contact the carrier and ask them to send a representative
to the site to inspect the damage, and request that an inspection report be completed.
Contact the carrier within 48 hours of receiving the machine (to report possible freight damage) and the dealer from whom
the unit was purchased.
UNPACKING THE DISHMACHINE: The machine should be unboxed and removed from the pallet prior to installing. Open
the front door and remove all of the materials from the inside. Once unpacked, verify there are no missing parts. If a part
is missing, contact manufacturer immediately.
LEVEL THE DISHMACHINE: The dishmachine is designed to operate while level. This is
important to prevent any damage to the machine during operation and to ensure the best
results possible. The unit comes equipped with adjustable bullet feet which can be turned
using a pair of pliers. Verify the unit is level from front to back and side to side before making any electrical or plumbing
connections.
PLUMBING THE DISHMACHINE: All plumbing connections must be made to adhere to local, state, territorial and national
codes. The installing plumber is responsible for ensuring the incoming water lines are fl ushed
of debris prior to connecting to the machine. Note that chips and materials from cutting processes can become lodged in the solenoid valves and prevent them from opening or closing. Any
valves that are found to be fouled or defective because of foreign matter left in the water line,
Raise
Lower
and any subsequent water damage, are not the responsibility of the manufacturer.
Frame withAdjustable Foot
A water hardness test must be performed to determine if the HTS-11 (scale prevention &
corrosion control) needs to be installed. A hardness test kit can be found on the warning tag that is attached to the incoming plumbing connection on the back of the machine. If water hardness is higher than 5 GPG, the HTS-11 will need to be
installed. Please contact manufacturer to purchase the HTS-11.
CONNECTING THE DRAIN LINE: The dishmachine's drain is a gravity discharge drain. All piping from the 1 1/2” FNPT con-
nection on the wash tank must be pitched (1/4” per foot) to the fl oor or sink drain. All
piping from the machine to the drain must be a minimum 1 1/2” I.P.S. and shall not
be reduced. There must also be an air gap between the machine drain line and the
fl oor sink or drain. If a grease trap is required by code, it should have a fl ow capaci-
ty of 5 gallons per minute.
WATER SUPPLY CONNECTION: Read the section entitled “PLUMBING THE
DISHMACHINE” before proceeding. Install the water supply line (3/4” pipe size
minimum, 1/2" pipe size minimum for LT) to the dishmachine line strainer using
copper pipe. It is recommended that a water shut-off valve be installed in the
water line between the main supply and the machine to allow access for service.
IncomingPlumbingY-strainerConnection
07610-004-26-29-E
9
INSTALLATION & OPERATION
INSTALLATION INSTRUCTIONS
The water supply line is to be capable of 20±5 PSI “fl ow” pressure at the recommended temperature indicated on the data
plate. Take care not to confuse static pressure with fl ow pressure: Static pressure is line pressure in a “no fl ow” condition (all
valves and services are closed); fl ow pressure is the pressure in the fi ll line when the valve is opened during the cycle. It
is suggested that a shock absorber (not supplied) be installed on the incoming water line. This prevents water hammer (hydraulic
shock)—induced by the solenoid valve as it operates—from causing damage to the equipment.
PLUMBING CHECK: Slowly turn on the water supply to the machine after the incoming fi ll line and the drain line have been
installed. Check for any leaks and repair as required. All leaks must be repaired prior to placing the machine in operation.
ELECTRICAL POWER CONNECTION: Electrical and grounding connections must comply with the applicable portions
of the National Electrical Code ANSI/NFPA 70 (latest edition) and/or other electrical codes. Disconnect electrical power
supply and place a tag at the disconnect switch to indicate that you are working on the circuit. The dishmachine data plate
is located on the right side and to the front of the machine. Refer to the data plate for machine operating requirements,
machine voltage, total amperage load and serial number. To install the incoming power lines, open the control box. This
will require taking a Phillips head screwdriver and removing the four (4) screws on the front cover of the control box. Install
3/4” conduit into the pre-punched holes in the back of the control box. Route power wires and connect to power block
and grounding lug. Install the service wires (L1, L2, & L3 (three phase only)) to
the appropriate terminals as they are marked on the terminal block. Install the
grounding wire into the lug provided. Tighten the connections. It is recommended that “DE-OX” or another similar anti-oxidation agent be used on all power
connections.
Power Block
Ground Lug
VOLTAGE CHECK: Ensure that the power switch is in the OFF position and ap-
ply power to the dishmachine. Check the incoming power at the terminal block
and ensure it corresponds to the voltage listed on the data plate. If not, contact
a qualifi ed service agency to examine the problem. Do not run the dishmachine
if the voltage is too high or too low. Shut off the service breaker and mark it as
being for the dishmachine. Advise all proper personnel of any problems and of
the location of the service breaker. Replace the control box cover and tighten
down the screws.
IncomingPower Connection
07610-004-26-29-E
10
INSTALLATION & OPERATION
VENTLESS HEAT RECOVERY MOUNTING INSTRUCTIONS
Due to shipping constraints the NOBLE HT-180 High Hood is shipped dissembled, you should receive two
pieces.
1
Heat Recovery UnitBase Unit
2
The heat recovery unit
box is located inside the
dishmachine shipping box.
Fully Assembled Unit
07610-004-26-29-E
11
INSTALLATION & OPERATION
VENTLESS HEAT RECOVERY MOUNTING INSTRUCTIONS
1
Locate and remove the four 1/4-20 bolts using a 7/16 wrench. These are located in top left and right
corner of the unit.
2
Lift the heat recovery unit up and over the lower air inlet, then align and slide unit onto the lower air
inlet. Upper unit should slide inside the lower air inlet at the seam.
Heat Recovery UnitLower Air Inlet Seam
3
Reinstall the four 1/4-20 bolts that were removed in step 1 with a 7/16 wrench. They insert into the
machine on the right and left corners.
07610-004-26-29-E
12
INSTALLATION & OPERATION
VENTLESS HEAT RECOVERY MOUNTING INSTRUCTIONS
4
Connect pressure gauge with a 9/16 wrench. Connect the two hoses using an adustable wrench.
The hoses are cut to length and will only reach their intended connection point.
A. Connect the GaugeB. Final Rinse Inlet
C. PRV Inlet from CoilD. Booster Outlet
Before moving to the next step, tidy up the hoses by sliding them under the clamps. You may need to
loosen the nut to accomplish this.
07610-004-26-29-E
13
INSTALLATION & OPERATION
VENTLESS HEAT RECOVERY MOUNTING INSTRUCTIONS
5
Locate the wire connectors at the top of the unit and connect the white and black wires from the
base unit.
Slide wire into the hole and push the lever down
Tidy up the wires and lock them in place with the P-Clamp on the top of the unit.
P-Clamp
Now you have a fully assembled unit.
07610-004-26-29-E
14
INSTALLATION & OPERATION
OPERATING INSTRUCTIONS
The Conserver XL-E Series CAM timer is a 1 minute, 30 second, 8-CAM timer (CAM 8 is a spare) that controls the operation of
the dishmachine. The following is a description of the set points for each CAM and the function of each switch.
CAM 1 is a cut CAM with a single notch that serves as the cycle/reset control.
FUNCTION: When the machine is in the operation mode the notch is in the home position. The machine will remain idle
until the door is opened, then CAM 1 moves to the start position and holds until the door is closed. The closing of the door
will start the next cycle. The CAM will rotate a complete cycle and return to the home position and hold.
CAM 2 is a cut CAM that provides the wash cycle timing.
FUNCTION: The wash CAM works off the normally open contacts of CAM 2. This requires the microswitch be held closed
by the CAM. It will close and energize the wash pump 2 seconds after the cycle switch is activated. The pump will operate
through the wash cycle (40 seconds) then shut down for the dwell period (20 seconds). As the CAM rotates it energizes
the pump for the rinse cycle (25 seconds). When CAM 1 reaches its home position it will de-energize CAM 2, shutting
down the wash pump.
NOTE: The last 6 CAMS are adjustable. The following instructions will require that the timer position have the
CAMs to the front and the motor to the left.
CAM 3 is an adjustable CAM that controls the drain valve.
FUNCTION: The drain solenoid works off the normally closed contacts of CAM 3. When the cycle is initiated, the microswitch
will be held open until it is allowed to drop into the notch of the CAM. This energizes the drain solenoid which then drains
the machine. After a 12 second delay the CAM reverses the microswitch, de-energizing the drain solenoid. This CAM may
require adjusting due to varying water pressure. The drain solenoid must remain open long enough to remove whatever
water the fi ll valve solenoid allows in the machine. This could vary due to the water supply line pressure.
SETTINGS: The right side of CAM 3 must be set to pick up the microswitch just before the wash/rinse cycle CAM switch
drops. It will hold the drain solenoid open to drain all the water in the tank from the unit during the dwell period. Any adjustment
made to the drain should be made to the left side of CAM 3. The CAM must be moved back into the wash time until all of
the water is drained from the machine.
CAM 4 is an adjustable CAM that controls the fi ll valve and the amount of water used.
FUNCTION: The fi ll valve CAM works off the normally closed contacts of CAM 4. This requires the microswitch to be held
open by the CAM and allowed to drop into the notch to operate the fi ll valve. This energizes the fi ll solenoid which opens to start fi lling the machine with fresh water. After a 10 second delay the CAM reverses the microswitch, de-energizing the fi ll solenoid.
The fi ll CAM may require adjustment due to varying water pressure. The fi ll solenoid must remain open a suffi cient length
of time to fi ll the machine to the correct level.
SETTINGS: The right side of CAM 4 must be set to allow the microswitch to drop 2 seconds before the drain solenoid
is de-energized to ensure the detergent residue is fl ushed from the unit. It will hold the fi ll solenoid open until the CAM
switch arm is raised. At that time the fi ll solenoid is de-energized, shutting off the incoming water. The tub will be fi lled to
the correct level. Any adjustment made to the timing of the fi ll solenoid should be made with the left side of CAM 4. To
07610-004-26-29-E
15
INSTALLATION & OPERATION
OPERATING INSTRUCTIONS
SHUTDOWN AND CLEANING: At the end of the workday, close the doors. When the unit completes the cycle, turn the
power switch to the OFF position and open the door. Remove and clean the pan strainer. Remove the drain stopper from
the tub and allow the tub to drain (NOTE: The wash tank water will be hot so caution is advised). Once the wash tub is
drained, remove the pump suction strainer. Dispose of any soil and debris found in the strainer. Unscrew the wash and
rinse arms from their manifolds. Remove the endcaps and fl ush the arms with water. Use a brush to clean out the inside
of the arms. If the nozzles appear to be clogged, use a toothpick to remove the obstruction. Wipe the inside of the unit,
removing all soil and scraps. Reassemble the wash and rinse arms and replace them in the unit. The arms only need to
be hand tight, do not use tools to tighten them down. Reinstall the drain stopper and strainers and close the door.
WATER CONSUMPTION ISSUES AND EFFICIENCY: The models covered in this manual provide the customer with the ability
to control the hourly rack capacity of the machine. Extending the wash cycle to wash severely soiled ware, such as mixing
bowls, does not increase the machine’s water consumption. However, selecting a longer time cycle does lower the amount of
dishes the machine will be able to wash per hour. It is important for operators to select the correct wash cycle depending on the
amount of washing required. Not every rack of dishes requires the machine to be set on the longest wash cycle.
07610-004-26-29-E
16
INSTALLATION & OPERATION
DETERGENT CONTROL
DETERGENT CONTROL: Detergent usage and water hardness are two factors that contribute greatly to how effi ciently
this dishmachine will operate. Using detergent in the proper amount can become a source of substantial savings. A
qualifi ed water treatment specialist can relate what is needed for maximum effi ciency from the detergent.
1. Hard water greatly affects the performance of the dishmachine, causing the amount of detergent required for washing
to increase. If the machine is installed in an area with hard water, the manufacturer recommends the installation of water
treatment equipment.
2. Deposited solids from hard water can cause spotting that will not be removed with a drying agent. Treated water will
reduce this occurence.
3. Treated water may not be suitable for use in other areas of operation and it may be necessary to install a water
treatment unit for the water going to the dishmachine only. Discuss this option with a qualifi ed water treatment specialist.
4. Dishmachine operators should be properly trained in how much detergent is to be used per cycle. Meet with a water
treatment specialist and detergent vendor to discuss a complete training program for operators.
5. Certain dishmachine models require that chemicals be provided for proper operation and sanitization. Some models
may require the installation of third-party chemical feeders to introduce those chemicals to the machine. The manufacturer
does not recommend or endorse any brand name of chemicals or chemical dispensing
equipment. Contact a chemical distributor for questions.
6. Some dishmachines come equipped with integral solid detergent dispensers. These dispensers are designed to accommodate detergents in a certain-sized container. If applicable, relate this to a chemical distributor upon fi rst contacting them.
7. Water temperature is an important factor in ensuring that the dishmachine functions properly, and the machine's data
plate details what the minimum temperatures must be for the incoming water supply, the wash tank and the rinse tank. If
minimum requirements are not met, there is a possibility that dishes will not be clean or sanitized.
8. Instruct dishmachine operators to observe the required temperatures and to report when they fall below the minimum
allowed. A loss of temperature can indicate a larger problem—such as a failed heater—or could indicate that the hot water
heater for the operation is not up to capacity and a larger one may need to be installed.
07610-004-26-29-E
17
INSTALLATION & OPERATION
FALSE PANEL INSTRUCTIONS
Rack rail removed and
repositioned for a
corner operation.
False panel positioned in unit
1. Remove the rack assembly from the dishmachine.
2. The false panel will mount inside of the dishmachine.
3. Position the panel in the dishmachine on the side to be closed.
4. Hold the panel against the side of the dishmachine and push upward.
5. The panel will clip in at the top, inside of the unit.
6. The holes in the false panel will line up with the rack assembly holes.
7. Reinstall the screws for the rack assembly which will secure
the false panel to the unit.
8. Reassemble the rack track in an "L" shape for a corner operation.
07610-004-26-29-E
18
PREVENTATIVE MAINTENANCE
Noble Warewashing highly recommends that any maintenance and repairs not specifi cally discussed in this manual
should be performed by QUALIFIED SERVICE PERSONNEL ONLY. Performing maintenance on your dishmachine may
void your warranty if it is still in effect. By following the operating and cleaning instructions in this manual, users should get
the most effi cient results from the dishmachine.
Steps to ensure that the dishmachine is used properly:
1. Ensure that the water temperatures match those listed on the machine data plate (on the front left of machine).
2. Remove as much soil as possible from dishes before loading into racks.
3. Ensure that all strainers are in place, laying fl at in tub and free of soil and debris before operating the machine. To clean
strainers, wipe them out with a rag and rinse under a faucet. For stubborn debris, a toothpick can be used to dislodge any
obstructions from the perforations. Do not beat strainers on waste cans; once bent they will not work properly.
4. If hard water is present, install an HTS-11 into the water line connecting to the dishmachine (see section "Plumbing the
Dishmachine").
5. Ensure that all wash and/or rinse arms are secure in the machine before operating.
6. Ensure that drains are closed/sealed before operating.
7. Do not overfi ll racks.
8. Ensure that glasses are placed upside down in the rack.
9. Ensure that all chemicals being injected into machine have been verifi ed as being at the correct concentrations.
9. Clean out the machine at the end of every workday as per the instructions in the manual (see section on "Shutdown &
Cleaning").
10. Always contact a qualifi ed service agency whenever a serious problem arises.
11. Follow all safety procedures, whether listed in this manual or put forth by local, state or national codes/regulations.
07610-004-26-29-E
19
PROBLEMPOSSIBLE CAUSEREMEDY
Dishmachine runs
continuously in the
wash cycle.
Machine is in delime mode.
Wash cycle delay timer is faulty.
Change operation mode from DELIME to NORMAL position.
During the wash cycle, the cam timer will move for the fi rst 30 seconds
of the wash cycle. The cycle delay timer will then cause the cam timer to
stop, in order to increase the length of the wash cycle. The red light on
the delay timer is in control of the cam timer. If the red light is not turning
on (only during cycles B, C or D), replace the cycle timer.
TROUBLESHOOTING
Dishmachine will not
fi ll after the door is
closed. Power "ON"
light is illuminated.
Dishmachine will not
fi ll after the door is
closed. Power "ON"
light is not illuminated.
Dishmachine will not
fi ll after the door is
closed. Power "ON"
light is not illuminated.
Wash cycle delay timer settings are
not correctly adjusted.
Cam timer is faulty.
Faulty rinse solenoid valve.
Faulty door switch.
Fouled/faulty high level probe.
Service breaker tripped.
Machine not connected to power
source.
Faulty power source.
Service breaker tripped.
Machine not connected to power
source.
If the wash cycle delay timer and rotating cam timer are working correctly,
the time cycles on the delay timer may be incorrectly adjusted. Adjust
the delay potentiometer corresponding to the B, C or D cycle. Rerun the
appropriate cycle and see if the adjustment has made any change in the
length of the cycle. If not, replace the cycle delay timer.
Confi rm that the wash cycle delay timer is functioning correctly (see
above). Confi rm that the timer motor is receiving power. If it is, replace
the motor and/or timer assembly. Make sure there are no obstructions
which limit the rotation of the cam timer.
Repair or replace valve as required.
Verify the wiring of the switch; if correct, replace the switch.
Clean probe if fouled. If clean and not working, replace.
Reset. If the breaker trips again, contact an electrician to verify the amp
draw of the machine.
Verify that the machine has been properly connected to the power
source.
Verify the wiring of the switch; if correct, replace switch.
Reset. If the breaker trips again, contact an electrician to verify the amp
draw of the machine.
Verify that the machine has been properly connected to the power
source.
Faulty power source.
Wash or rinse heater
does not work.
Dishmachine fi lls
slowly and/or rinse is
weak.
Rinse water is not
reaching required
temperature.
Faulty heater element.
Faulty heater contactor.
Misadjusted/faulty thermostat(s).
Clogged or obstructed rinse arms.
Low incoming water pressure.
Y-strainer is clogged.
Faulty rinse heater.
Misadjusted/faulty thermostat(s).
Rinse thermometer is defective.
Verify the wiring of the switch; if correct, replace switch.
Check element for continuity; if open, replace the heater.
Replace the contactor.
Verify the operation and setting of thermostats; replace if necessary.
Remove and clean the rinse arms.
Adjust the water pressure regulator to ensure that there is 20±5 PSI fl ow.
Clean out the Y-strainer.
Check element for continuity; if open, replace heater.
Verify operation and setting of thermostats; replace if necessary.
Replace thermometer.
07610-004-26-29-E
20
TROUBLESHOOTING
PROBLEMPOSSIBLE CAUSEREMEDY
Wash water is not
reaching required
temperature.
Faulty wash heater.
Misadjusted/faulty thermostat(s).
Check element for continuity; if open, replace heater.
Verify operation and setting of thermostats; replace if necessary.
Doors will not close
completely.
Water leaks at the
wash pump.
Will not rinse during
autocycle.
Dishes are not
coming clean.
Wash thermometer is defective.
Improper spring tension.
Obstruction in door channel.
Doors are not square with frame.
Wash pump seal defective.
Petcock or pump drain (if
equipped) not shut/tight.
Loose hoses (hose clamps) on the
wash pump.
Defective rinse solenoid.
Faulty fi ll microswitch.
No water to the machine.
Machine temperatures are not up
to the minimum requirements.
No detergent/too much detergent.
Solid dispenser canister is empty.
Replace thermometer.
Adjust spring tension as required by loosening (not removing) spring bolt
nuts and adjusting the tension. Tighten nuts back when done.
Remove the obstruction.
Adjust the frame to accommodate the doors.
Replace the seal.
Close or tighten.
Tighten the hose clamps.
Repair or replace the rinse solenoid as required.
Replace microswitch.
Verify that there is water at 20±5 PSI connected to the machine.
Verify that incoming water, rinse water and wash water match the required
temperatures as listed on the machine data plate.
Adjust detergent concentration as required for the amount of water held
by the machine.
The models covered in this manual come supplied with various wash motor assemblies (a wash motor assembly includes
the wash motor and the pump end), depending on the characteristics of the machine. To ensure that the correct wash
motor assembly is ordered for the model being serviced, refer to the following table:
MODELVOLTSHzPHASE
NOBLE HT-180 HH41550306105-002-45-07
NOTE: When servicing a wash motor please refer to the wiring schematic found on the motor to ensure that it is wired
correctly. Different manufacturers use different wire color codes and your new motor may not connect using the same
wires. Always refer to the diagrams on the motor you are installing. If the schematics have been removed from the motor
you are installing, contact Noble Warewashing technical support immediately.
WASH MOTOR
ASSEMBLY
07610-004-26-29-E
41
PARTS
MOTORS — WASH HEATERS — RINSE HEATERS
The Noble models covered in this manual come supplied with various heaters, depending on the characteristics of the
machine. To ensure that the correct heater is ordered for the model being serviced, refer to the following table:
When servicing plumbing components, take care not to damage the threads of each individual item. Damaged threads can cause leaks
and loss of pressure, which could adversely effect the performance of the NOBLE HT-180 HH dishmachine. It is strongly recommended
that tefl on thread tape, used in conservative amounts, be applied to threads when joining components together. It is not advised to use
thread sealing compounds, sometimes referred to as “pipe dope”. Compounds can be ejected from the threads during the tightening
process and become lodged in key components, thereby rendering them useless. Some of the components include the solenoid valve
and the pressure gauge isolation ball valve
When servicing plumbing components, take care not to damage the threads of each
individual item. Damaged threads can cause leaks and loss of pressure, which could
adversely affect the performance of the dishmachine. It is strongly recommended that
tefl on thread tape be applied conservatively to threads when joining components together.
It is not advised to use thread sealing compounds, or "pipe dope," as they can be ejected
from the threads during the tightening process and become lodged in key components.
From the existing drain, attach two additional Tees using the 1-1/2" NPT Close Nipples. Tighten the Reducers into the
Tees as shown above. Attach the Modifi ed Compression Fitting into the 1-1/2" to 1/4" Reducer. Position the bulb of the
thermostat so that it rests approximately 1/4" from the bottom of the Tee. Tighten the Modifi ed Compression Fitting as
required. Attach to the incoming cold water line. Use thread tape as required to prevent any leaks.
07610-004-26-29-E
51
PARTS
3/4" SOLENOID VALVE & 3/4" VACUUM BREAKER REPAIR PARTS KITS
The following instructions are for NOBLE HT-180 HH models equipped with the Door Interlock option. These
instructions should only be used if the door interlock fails to unlatch and the doors are unable to be opened.
1. To manually disengage, fi nd the latch access hole.
2. Gently insert the tip of a screwdriver or other metal utensil into the access hole, making contact with the latching arm.
3. Disengage the interlock by pushing the latching arm back with a minimal amount of force.
4. The doors should now open.
07610-004-26-29-E
60
PARTS
SOLID STATE NOBLE HT-180 HH (TOP MOUNT CONTROLS), 208-230V, 60HZ, 1 & 3 PHASE