MARVEL -MLNP115X-1 Under counter Refrigeration Owner’s Manual

OWNERS GUIDE
MARVEL UNDERCOUNTER REFRIGERATION

FOR MODEL # MLNP115
THE ORIGINAL REFRIGERATION EXPERTS SINCE 1892=

IMPORTANT SAFETY INSTRUCTIONS

Important Safety Instructions
Warnings and safety instructions appearing in this guide are not meant to cover all possible conditions and situations that may occur. Common sense, caution, and care must be exercised when installing, maintaining, or operating this appliance.
Recognize Safety Symbols,
Words, and Labels.

WARNING
WARNING – You can be killed or seriously injured if you do not follow these instructions.
CAUTION
CAUTION -Hazards or unsafe practices which could result in personal injury or property / product damage.
NOTE
NOTE -Important information to help assure a problem free installation and operation.
WARNING
State of California Proposition 65 Warning:
This product contains one or more chemicals known to the State of California to cause birth defects or other reproductive harm.
WARNING
State of California Proposition 65 Warning:
This product contains one or more chemicals known to the State of California to cause cancer.
WARNING
WARNING  - This unit contains R600a (Isobutane) which is a flammable hydrocarbon. It is safe for regular use. Do not use sharp objects to expedite defrosting.
Do not damage refrigerant circuit.

Tip: Click on any section below to jump directly there

UNPACKING YOUR APPLIANCE

WARNING
EXCESSIVE WEIGHT HAZARD
Use two or more people to move product.
Failure to do so can result in personal injury.

Remove Interior Packaging
Your appliance has been packed for shipment with all parts that could be damaged by movement securely fastened.
Remove internal packing materials and any tape holding internal components in place. The owners manual is shipped inside the product in a plastic bag along with the  warranty registration card, and other accessory items.
Important
Keep your carton and packaging until your appliance has been thoroughly inspected and found to be in good condition. If there is damage, the packaging will be needed as proof of damage in transit.
Afterwards please dispose of all items responsibly.

WARNING
WARNING – Dispose of the plastic bags which can be a suffocation hazard.

Note to Customer
This merchandise was carefully packed and thoroughly inspected before leaving our plant. Responsibility for its safe delivery was assumed by the retailer upon acceptance of the shipment. Claims for loss or damage sustained in transit must be made to the retailer.

NOTE
DO NOT RETURN DAMAGED MERCHANDISE TO THE MANUFACTURER – FILE THE CLAIM WITH THE RETAILER.

CAUTION
If the appliance was shipped, handled, or stored in other than an upright position for any period of time, allow the appliance to sit upright for a period of at least 24 hours  before plugging in.
This will assure oil returns to the compressor.
Plugging the appliance in immediately may cause damage to internal parts.

ELECTRICAL

WARNING
Electrical Shock Hazard

• Do not use an extension cord with this appliance.
  They can be hazardous and can degrade product performance.

• This appliance should not, under any circumstances, be installed to an ungrounded electrical supply.

• Do not remove the grounding prong from the power cord.

• Do not use an adapter.

• Do not splash or spray water from a hose on the appliance. Doing so may cause an electrical shock, which may result in severe injury or death.

Electrical Connection
A grounded 115 volt, 15 amp dedicated circuit is required.
This product is factory equipped with a power supply cord that has a three- pronged, grounded plug. It must be plugged into a mating grounding type receptacle in  accordance with the National Electrical Code and applicable local codes and ordinances (see figure below). If the circuit does not have a grounding type receptacle, it is the responsibility and obligation of the customer to provide the proper power supply.
The third ground prong should not, under any circumstances, be cut or removed.

NOTE
Ground Fault Circuit Interrupters (GFCI) are prone to nuisance tripping which will cause the appliance to shut down.
GFCI’s are generally not used on circuits with power equipment that must run unattended for long periods of time, unless required to meet local building codes and ordinances.

Side-by-Side Installation
Two units may be installed side-by-side.
Cutout width for a side-by-side installation is the cutout dimension of a single unit times two.
No trim kit is required. However, 1/4″ (6 mm) of space needs to be maintained between the units to ensure unobstructed door swing.
Units must operate from separate, properly grounded electrical receptacles placed according to each unit’s electrical specifications requirements.

Side-by-Side Installation with Bracket

1. Slide both units out so screws on top of units are easily accessible.

2. Remove screws as shown below.
   

3. Place bracket over holes and attach to unit with two screws removed in step 2 using a T-25 Torx driver. Tighten screws fully.

4. Gently push units into position. Be careful not to entangle the electrical cord or water line, if applicable.

5. Re-check the leveling, from front to back and side to side. Make any necessary adjustments. The unit’s top surface should be approximately 1/8″ (3 mm) below the countertop.

Anti-Tip Bracket

1. Slide unit out so screws on top of unit are easily accessible.

2. Remove the two screws from the opposite side of the hinge assembly using a T-25 Torx driver (see below).

3. Place bracket over holes and attach to unit with two screws removed in step 2 using a T-25 Torx driver. Tighten screws fully.

4. Gently push unit into position. Be careful not to entangle the electrical cord or water line, if applicable.

5. Check to be sure the unit is level from front to back and side to side. Make any necessary adjustments.
   The unit’s top surface should be approximately 1⁄8” (3 mm) below the countertop.

6. Secure bracket into adjoining surface.

Door Adjustments
HINGE COVER
Hinge cover included with the literature bag is optional.
To install hinge cover:

1. Press hinge cover squarely over hinge.

DOOR ALIGNMENT AND ADJUSTMENT
Align and adjust the door if it is not level or is not sealing properly. If the door is not sealed, the unit may not cool properly, or excessive frost may form in the interior.

NOTICE
Properly aligned, the door’s gasket should be firmly in contact with the cabinet all the way around the door (no gaps). Carefully examine the door’s gasket to ensure that it is firmly in contact with the cabinet. Also make sure the door gasket is not pinched on the hinge side of the door.
To align and adjust the door:

1. Gently pry off hinge cover from top of unit.
2. Loosen (do not remove) top and bottom hinge screws using a Torx T-25 screwdriver.
3. Align door squarely with cabinet.
4. Make sure gasket is firmly in contact with cabinet all the way around the door (no gaps).
5. Tighten bottom hinge screws.
6. Tighten top hinge screws and replace hinge cover.

REVERSING THE DOOR
Location of the unit may make it desirable to mount the door on the opposite side of the cabinet.
The hinge hardware will be removed and reinstalled on the opposite side of the cabinet.
TO REVERSE THE DOOR

Remove grille:
Remove the grille (see GRILLE INSTALLATION section of this guide).
Remove top hinge and door:

1. Hold door to keep it from falling.

2. Remove top hinge from cabinet using a Torx T-25 screwdriver to remove three screws. Set aside and save for possible future use.

3. Remove door by tilting forward and lifting door off bottom hinge. Retain shoulder washers; they will be reused.

4. Remove three screws from hinge holes on the opposite side. Reinstall into holes where the hinge was removed. (If utilizing supplied screw cover, install just one screw.)

Remove bottom hinge:

1. Remove bottom hinge from cabinet using a T-25 TORX screw driver to remove three screws.

2. Remove corresponding screws on opposite side of cabinet. On some models there may be a nut behind one or both screws on either side.

Install bottom hinge:
Install two or three screws, depending on model. Replace nuts if used. Install top hinge and door:

1. Install hinge with longer straight edge aligned to outside edge of cabinet. Do not tighten.

2. Rotate door 180o and set on bottom hinge.

3. Align edge of the hinge with the outer edge of the unit.

4. Tighten three hinge screws.

Align and adjust the door:
Align and adjust the door (see DOOR ALIGNMENT AND ADJUSTMENT)
Install grille and hinge cover

INSTALLING THE WATER SUPPLY

CAUTION
surrounding water damage and/or poor ice production.
WARNING
Electrical Shock Hazard
Reasonable care and safe methods should be practiced. Do NOT work with energized electrical installation instructions listed in this manual.
Drain Plumbing
variations of ice machines in regards to the installation of the drain plumbing, without a drain pump (gravity drain), and with a drain pump.
Gravity Drain (no drain pump):
The ice machine is shipped with the drain line installed, coiled and secured to the back of the cabinet as shown below. It can be uncoiled, routed to an appropriate provision of drain routing through the cut-out in the bottom of the unit. A drain can be installed in this gray area with the drain line cut to a short length and positioned into the drain,
or if the ice machine is to be built-in, the drain tube could be below.
CAUTION
The gravity drain line must be routed no higher than 6″

CAUTION
Observe and follow all local building codes when installing this ice machine and drain lines.
Optional Drain Pump.
An optional drain pump is available if you have purchased an ice machine without one and do not have access to a gravity drain. Installation instructions are provided with the
optional drain pump. Contact Marvel customer service at 616-754-5601 or your dealer for ordering.
CAUTION
This drain pump is designed to be installed in Marvel ice machines only and approved for use with water only.
WARNING
Electrical Shock Hazard
Risk of electrical shock or personal injury could occur due to moving components, if the machine compartment access cover is removed before unplugging the ice machine power cord.

Water Supply
! CAUTION
Observe and follow all local building codes when installing this appliance.
This ice machine must be connected to a potable cold water supply line. delivering water pressure between a minimum of 20 psi and a maximum of 120 psi.
Use 1/4″ copper tubing for your water supply which is available at any local hardware or plumbing supply store.
Route the 1/4″ copper tubing to suit your installation being sure not to kink the tubing. Purchase enough copper tubing length to allow a coil to be formed behind the unit for a “service loop” which will allow the appliance to be pulled out from the installation for servicing or cleaning. Connect the copper tubing to the “top side” of a cold water pipe to prevent the ice-maker from plugging with sediment.
A shutoff valve is recommended on the water supply line to ease servicing the appliance. NOTE: A SELF-PIERCING TYPE VALVE IS NOT RECOMMENDED as they are prone to clogging with sediment which will create pressure drop reducing the water supply to the unit.
Connect the copper tubing water supply to the water valve
IMPORTANT: Secure the water supply line to the back of the cabinet with the screw and strain relief clamp provided in the corner of the back panel.
Make certain all connections are watertight after installation. Form the tubing so that it will not vibrate against the cabinet body or kink when your appliance is moved in and out of position.
This ice machine is designed to make clear ice from the majority of water sources on a daily basis. If your results treated. A water specialist can recommend proper water treatment.
CAUTION
To prevent water leaks:

• The water line fitting is to be used with copper tubing only. Do not use with plastic tubing.
• Do not use any thread sealers on this water line fitting.
  

NOTE
Reverse osmosis, (RO), water, softened water, and de-ionized water are not recommended as they can adversely affect the quality and quantity of the ice.
Procedure for Testing Drain System (both gravity and drain pump models)
Drain pump models have a safety feature that will interrupt power to the unit if a high-limit condition occurs to prevent is corrected, at which time power will be restored to the unit. Power interruption can be detected when no icons are visible in the display area of the user interface. Once power is returned, a startup chime will sound followed by a self-test, and “OFF” should be visible in the display area. ![MARVEL -MLNP115X-1 Under counter Refrigeration

• Fig 16](https://manuals.plus/wp-content/uploads/2022/12/MARVEL-MLNP115X-1 -Under-counter-Refrigeration-Fig-16.png)

User interface display during power interruption. Once the drain line is plumbed, perform the following:

1. Plug the ice machine into 115v power supply.
2. Place unit in the final installation location.
3. Turn the unit off via the user interface (display will indicate “OFF”). The drain pump will still be operational during off mode if the unit has one.
4. Slowly pour 3-qts of water into the ice storage bin. All water should drain completely.
5. If water drains fully and without power interruption, the drain system has been successfully tested and further installation of the ice machine can be continued.
6. If the water does not drain or a power interrupt occurs, check the following:
   a. There are no kinks or restrictions in the drain line. (Note: Drain line needs to be cut to the required length and any excess tubing should be removed to prevent possible restrictions).
   b. Drain line was run according to the guidelines for maxiumum allowable rise and run as shown in the table below:Rise Above Floor Level| 8 ft.| 9 ft.| 10 ft.
   ---|---|---|---
   Maxium Allowable Drain Line Length| 20 ft.| 15 ft.| 10 ft.

c. Your drain line is plumbed into an open drain (Figure 13).
d. The vent tube on the back of the unit is open (Figure 14).

7. After checking the above requirements, repeat step 4 and verify the water drains completely without power interruption. If problems persist call a qualified service technician and/or plumber.

OBTAINING SERVICE

If Service is Required:

• If the product is within the first year warranty period please contact your dealer or call Marvel Customer Service at 616.754.5601 for directions on how to obtain warranty coverage in your area.
• If the product is outside the first year warranty period, Marvel Customer Service can provide recommenda-tions of service centers in your area. A listing of autho-rized service centers is also available at www.marvelre-frigeration.com under the service and support section.
• In all correspondence regarding service, be sure to give the service number, serial number, and proof of purchase.
• Try to have information or description of nature of the problem, how long the appliance has been running, the room temperature, and any additional information that may be helpful in quickly solving the problem.
• Table “B” is provided for recording pertinent information regarding your product for future reference.

For Your Records

Date of Purchase…………………………..
Dealer’s name………………………………….
Dealer’s Address……………………………
Dealer’s City…………………………………..
Dealer’s State…………………………………..
Dealer’s Zip Code…………………………………..
Appliance Serial Number……………………………
Appliance Service Number……………………………..
Date Warranty Card Sent (Must be within 10 days of purchase).
Table B

Product Liability

Field service technicians are authorized to make an initial assessment in the event of reported damages. If there are any questions about the process involved, the technician should call Marvel for further explanation.
While inspecting for defects or installation issues, photos should be taken to document any damages or issues found. During the assessment, if the service technician is able to find the source of the damage and it can be resolved by replacement of a part, the servicer is authorized to replace the part in question. The part that caused the damage must be returned to Marvel in its entirety. The part must be clearly labeled with the serial number of the unit it was removed from, the date, and the servicer who removed the
part. If the service technician determines the damage is the result of installation issues (water connection/drain, etc.), the consumer would be notified and the issues shall be resolved at the direction of the consumer. If damage is evident and the service technician is unable to find the source, Marvel must be contacted at 616.754.5601 for further direction.
1260 E. Van Deinse St
Greenville, MI 48838
T: +1.616.754.5601
Website: www.marvelrefrigeration.com
The original refrigeration experts since 1892.

Warranty Claims

The following information defines the parameters for filing a warranty claim:

• Valid serial number needed
• Valid model number needed
• Claims must be submitted online at www.marvelservice.com
• 60 day submittal deadline from date of completed service
• Only one repair or unit per warranty claim
• Part order numbers will be required when submitting for warranty labor

Units must be registered prior to warranty submittal.
Customers may register at www.marvelrefrigeration.com. A proof of purchase is required. We also accept the following information to update warranty:

• New construction occupancy documents
• Closing paperwork
• Final billing – Remodel

Warranty parts will be shipped at no charge after Marvel confirms warranty status. Please provide the model, serial number, part number and part description. Some parts will
require color or voltage information.

Ordering Replacement Parts

Parts may be ordered online at partsformarvel.com
Or contact: www.marvelrefrigeration.com (Servicers choose “Login” for service account).
Phone Number: 616-754-5601
NOTICE
Use only genuine Marvel replacement parts. The use of non-Marvel parts can reduce performance, damage the unit, and void the warranty.
Warranty parts will be shipped at no charge after Marvel confirms warranty status. Please provide the model, serial number, part number and part description. Some parts will
require color or voltage information.
Marvel requires the return of original parts, we will inform you when the parts order is taken. This requirement will be noted on your packing list. A prepaid shipping label will be emailed to you. Please enclose a copy of the parts packing list and be sure the model and serial numbers are legible on the paperwork. Tag the part with the reported defect. Customers and non-authorized servicers may order non­ warranty parts at www.partsformarvel.com. Authorized servicers with a servicer login may order non-warranty parts at www.marvelrefrigeration.com.

R-600A Specifications & Handling

WARNING
Flammability warnings for a pure-iso-butane refrigerant.

Gloves and Eye Protection must be used.
R-600a is considered non-toxic, but is flammable when mixed with air.
Keep a dry powder type fire extinguisher in the work area.
R-600a is heavier than air, do not allow any leakage/migration to low areas such as basements and stairs.
Never use a torch on a fully charged refrigeration system.
Never substitute Marvel OEM replacement parts or methods of construction.
R-600a must be stored and transported in approved containers.
WARNING
Only skilled and well trained service technicians permitted to service R-600a equipped products.
All tools and equipment must be approved for use with R-600a refrigerant.
Local, state and federal laws, standards must be observed along with proper certification and licensing.
Ventilation is required during servicing.
No conversions to R-600a from any other refrigerants. OEM R-600a equipped unit only.
Service area must be free of ignition sources.
No smoking is allowed in the service area.
All replacement electrical components must be OEM and installed properly (sealed and covered).
If the evaporator is cold prior to service, it must be thawed prior to service.
When using a vacuum pump, start pump before opening refrigeration system.
Vacuum pump and recovery equipment should be at least 10 feet from the work area.
It is recommended that a simple LPG gas detector is on site during service.
Ensure that all R-600a is removed from the system prior to brazing any part of the sealed system.
Only a clean, dry leak free system should be charged with R-600a.
R-600A SPECIFICATIONS/LABELING
R-600a equipped products are labeled (both the unit and the compressor).
R-600a is colorless and odorless.
R-600a is considered non-toxic, but is flammable when mixed with air.
Do not remove or alter any R-600a labeling on the product.
Use only a refrigerant grade R-600a from a properly labeled container.
RECOVERING/RECLAIMING R-600A
(R-600a has been exempted from recovery/reclaiming requirements by the US EPA)
Recovery/Reclaiming equipment must be approved for use  with R-600a.
Ensure the evaporator is at room temperature prior to recovery /reclaiming R-600a.
Use a common piercing pliers or piercing valve to remove R-600a from the compressor process tube. (Note: Piercing devices must not be lelt on the system and must be
replaced with a Schrader type valve.)
Evacuate/reclaim via the piecing pliers to ensure the system is empty of R-600a before any system work is performed. The recovery cylinder must be evacuated (no air inside) prior to accepting R-600a.
The recovery cylinder must not be filled more than 45% safe fill level and refrigerants must not be mixed.
The recovery cylinder must be clearly marked with R600a and Flammable Warning labels.
Ensure proper ventilation during recovery/reclaiming of R600a.
Start vacuum pump/recovery pump prior to piercing the compressor process tube.
Follow recovery/reclaim OEM instructions for the specific equipment used.
SYSTEM REPAIR
Ensure no residual R-600a refrigerant is left within the system prior to repair (simple venting is not sufficient).
Evacuate and charge with dry nitrogen for leak checks.
Repair leaks or replace system parts as required.
When re-brazing, the system must be purged with dry nitrogen and at least one access point open to the atmosphere.
When re-brazing, proper ventilation is required along with constant monitoring for the presence of R600a refrigerant.
The filter dryer must be replaced any time the sealed system is serviced.
No system should be open to the atmosphere for longer than 15 minutes to avoid moisture migration into the system components.
LEAK DETECTION
After removal of the R-600a, the unit can be charged with dry nitrogen or helium.
Electronic leak detection or soap solution can be used to check for nitrogen/helium leaks.

Never use a halide torch or lighted match to check the system for leaks at any time.
The high side of the refrigeration system (compressor discharge to outlet of drier) must be leak tested with the compressor running.
The low side of the refrigeration system (evaporator, compressor and suction line) must be leak tested with the compressor off (equalized pressure).
RECHARGING
No air is ever to be allowed inside the refrigeration system (R-600a refrigerant or dry nitrogen only).
Never use a torch on a fully charged refrigeration system.
Install a Schrader Type access port on the compressor process stub.Evacuate the system to 100 microns prior to charging.
Weigh in the R-600a charge using a refrigerant scale. (run compressor an extra two minutes to clear the charging hoses).
Seal the Schrader Type access port, a proper cap and seal must be used to close the system.
SUMMARY
Safely handling R-600a requires proper procedures and training.
R-600a approved service tools must be used.
R-600a labeling must not be removed or altered.
Proper ventilation during service is required.
Never apply a torch to a charged R-600a refrigeration system.
Use OEM replacement service parts and do not alter the construction of the unit.

System Diagnosis Guide
REGRIGERATION SYSTEM DIAGNOSIS GUIDE

System Condition| Suction Pressure| Suction Line| Compressor Discharge| Condenser| Capillary Tube| Evaporator| Wattage
---|---|---|---|---|---|---|---
Normal| Normal| Slightly below room temperature| Very hot| Very hot| Warm| Cold| Normal
Overcharge| Higher than normal| Very cold may frost heavily| Slightly warm to hot| Hot to warm| Cool| Cold| Higher than normal
Undercharge| Lower than normal| Warm- near room temperature| Hot| Warm| Warm| Extremely cold near inlet – Outlet below room temperature| Lower than normal
Partial Restriction| Somewhat lower than normal  vacuum| Warm-near room temperature| Very hot| Top passes warm – Lower passes cool (near room temperature) due to liquid| Room temperature (cool) or colder| Extremely cold near inlet – Outlet below room  temperature backing up| Lower than normal
Complete Restriction| In deep
vacuum| Room temperature (cool)| Room temperature (cool)| Room temperature (cool)| Room temperature (cool)| No refrigeration| Lower than normal
No Gas| 0 PSIG to 25″| Room temperature (cool)| Cool to hot| Room temperature (cool)| Room temperature (cool)| No refrigeration| Lower than normal

SERVICE MODE GUIDE
0. Ex.:

1. Thermistor 1 temperature not including offsets.

2. Thermistor 2 temperature not including offsets.

3. Thermistor 3 temperature not including offsets

4. Thermistor 4 temperature not including offsets.

5. Thermistor 1 offset. (+/- 10)

6. Thermistor 2 offset. (+/- 10)

7. Thermistor 3 offset. (+/- 10)

8. Thermistor 4 offset. (+/- 10)

9. Thermistor 2 set point

10. Thermistor 3 set point.

11. Thermistor 4 set point.

12. Defrost Interval (0 to 99 hr)

13. Defrost duration (0 to 99 min)

14. Error Log (See Appx D)

15. Clear error log (hold light key until cleared)

16. Thermistor 1 differential (+5)

17. Thermistor 3 differential (+5)

18. Evaporator fan on delay (0 to 99 sec)

19. Evaporator fan off delay (0 to 99 sec)

20. Individual component toggle
    – Option #0 – Exit
    – Option #1- Relay 1
    – Option #2 – Relay 2
    – Option #3 – Relay 3
    – Option #4 – Relay 4
    – Option #5 – Relay
    – Option #6 – Relay 6
    – Option #7 – DC Output 1
    – Option #8 – DC Output 2
    – Option #9 – DC Output 3
    – Option #10 – DC Output 4
    – Option #11 – DC Output
    – Option #12 – Serial output (Compressor)

21. Model number

22. Light All Segments

23. Activate Defrost/Harvest- press and hold for 3 seconds to activate defrost/harvest

24. Defaults- press and hold for 3 seconds to restore all values to factory defaults.

25. Main Software (Display only)

26. Live Log Period (frequency that data is output to diagnostics port)

27. Factory test mode (0=Off, 1=0n)

28. Compressor RPM

29. Freeze time adjust (Model 54 only)

30. Harvest time adjust (Model 54 only)

31. Low temp alarm limit (Model 55 only)

32. High temp alarm limit (Model 55 only)

SERVICE MODE GUIDE

1. THERMISTOR 1 – ZONE
   This shows the pure thermistor reading with no offsets taken into account.

2. THERMISTOR 2 – EVAPORATOR
   This shows the pure thermistor reading with no offsets taken into account.

3. Does not apply to this model.

4. Does not apply to this model.

5. THERMISTOR 1 – ZONE OFFSET (DO NOT MAKE AN ADJUSTMENT TO THIS WITHOUT CONTACTING TECH LINE:
   616-754-5601) This calibration is only to be used if actual temperature at thermistor #1 is off from set point. By adjusting the offset higher we can force the unit to drive the temperature down below the set point. (example: adjusting from 0 to +2 will drop the unit temperature 2 degree,:

6. THERMISTOR 2 – EVAPORATOR OFFSET (DO NOT MAKE AN ADJUSTMENT TO THIS WITHOUT CONTACTING TECH LINE:
   616-754-5601)

7. Does not apply to this model

8. Does not apply to this model.

9. THERMISTOR 2 – SET POINT MINUS OFFSET
   This shows the thermistor reading with offsets taken into account.

10. Does not apply to this model.

11. Does not apply to this model.

12. ADJUST DEFROST INTERVAL – 3 TO 24 HOURS
    This will adjust the interval between defrosts from 3 to 24 hours. Adjusting from the factory settings may cause undesired te-nnPraturP in the rPfncP-ater section.

13. ADJUST DEFROST DURATION – 0 TO 99 MINUTES
    The length of the defrost can be adjusted 0 to 99 minutes long. The other defrost parameters still apply. Lengthening a defrost may cause higher than normal temperatures in the refrigerator section.

14. VIEW ERROR LOG
    A list of errors in the order they occurred will scroll on the display. All errors are logged in memory. Only door error is displayed on the display and has an audible signal.
    EO: Door 1 (upper) open.
    El: Thermistor 1 open.
    E2: Thermistor 2 open.
    E3: Thermistor 3 open.
    E4: Thermistor 4 open (Does not apply to this model).
    ES: Thermistor 1 shorted.
    E6: Thermistor 2 shorted.
    E7: Thermistor 3 shorted.
    E8: Thermistor 4 shorted (Does not apply to this model).
    E9: Door 2 (lower) open.
    P1: Pump Circuit open (Does not apply to thismodel)

15. CLEAR ERROR LOG
    To clear errors, press and hold (5 seconds) when CLR is flashing.

16. THERMISTOR – 1 DIFFERENTIAL
    This number should not be adjusted.

17. Does not apply to this model.

18. THIS NUMBER SHOULD NOT BE ADJUSTED

19. THIS NUMBER SHOULD NOT BE ADJUSTED

20. INDIVIDUAL COMPONENT TOGGLE
    Display *Relay / Output

21. – Option #0 – Exit
    – Option #1 – Relay 1
    – Option #2 – Relay 2
    – Option #3 – Relay 3
    – Option #4 – Relay 4
    – Option #5 – Relay 5
    – Option #6 – Relay 6
    – Option #7 – DC Output 1
    – Option #8 – DC Output 2
    – Option #9 – DC Output 3
    – Option #10 – DC Output 4
    – Option #11 – DC Output
    – Option #12 – Serial output (Compressor)
    SEE RELAY / OUTPUT CHART

22. MODEL NUMBER INDICATOR
    Displays the two-digit model number of the specific unit. See Model list table.

23. LIGHT ALL LED SEGMENTS
    This will Illuminate all the LEDs on the display to ensure they work properly

24. ACTIVATE DEFROST /HARVEST
    -Press and hold for 3 seconds to activate

25. FACTORY DEFAULTS
    -Press and hold ror 3 seconds to restore all values to factory defaults

26. MAIN SOFTWARE

27. Does not apply to this model

28. FACTORY TEST MODEL
    0= Off, 1 = On

29. COMPRESSOR RPM 29. FREEZE TIME ADJUST (MODEL 54 ONLY)

30. HARVEST TIME ADJUST (MODEL 54 ONLY)

31. LOW TEMP ALARM LIMIT (MODEL 55 ONLY)

32. HIGH TEMP ALARM LIMIT (MODEL 55 ONLY)

Thermistors
Thermistors are used for various temperature readings. Thermistors provide reliable temperature readings using a resistance which varies based on surrounding temperatures. If a faulty thermistor is suspected it may be tested using an accurate ohmmeter.
Both thermistors in the unit are identical. If a thermistor is suspected of being defective, the resistance can be verified. Place the thermistor in an ice water bath, the
resistance should read 16.lk Ohms +/-5% on your meter. Thermistor connections must be kept clean. A thermistor connection that has become corroded can cause resistance values from the thermistor to change as they pass through a dirty connection to the board.
It is for that reason that we apply dielectric grease to all of our thermistor connections. Dielectric grease will help to keep thermistor connections clean and dry.
If you change a thermistor in the unit please re-apply dielectric grease to the connection. If you encounter a dirty thermistor connection, you should replace the thermistor and the thermistor harness.
Thermistor error information can be found in the Control
Operations – Service section.
This unit has two thermistors.
Thermistor one (Zone):
Located along the right hand side wall. It is used to maintain the operating temperature within that zone.
Thermistor two (Evaporator):
Located on the evaporator. It is used for defrost.
THERMISTOR FAILURE
Zone Thermistor
If the zone thermistor in the unit fails, the unit will continue to cool in a backup mode (Self Preservation Mode) to preserve the integrity of the contents. The unit will otherwise operate normally.
Evaporator Thermistor
If the evaporator thermistor fails, the unit will rely on a preset defrost timer during defrost cycles. The unit will otherwise operate normally. Refer to defrost section.
Thermistor Resistance Data

*(+/-5%)

HOUSEHOLD PRODUCT WARRANTY

Marvel Refrigeration (Marvel) Limited Warranty
ONE YEAR LIMITED PARTS & LABOR WARRANTY
For one year from the date of original purchase, this warranty covers all parts and labor to repair or replace any part of the product that proves to be defective in materials or workmanship. For products installed and used for normal residential use, material cosmetic defects are included in this warranty, with coverage limited to 60 days from the date of original purchase. All service provided by Marvel under the above warranty must be performed by a Marvel factory authorized servicer, unless otherwise specified by Marvel. Service provided during normal business hours.
TWO YEAR LIMITED PARTS & LABOR WARRANTY (MARVEL PROFESSIONAL PRODUCTS)
For two years from the date of original purchase, this warranty covers all parts and labor to repair or replace any part of the product that proves to be defective in materials or workmanship. For products installed and used for normal residential use, material cosmetic defects are included in this warranty, with coverage limited to 60 days from the date of original purchase. All service provided by Marvel under the above warranty must be performed by a Marvel factory authorized servicer, unless otherwise specified by Marvel. Service provided during normal business hours.
AVAILABLE THIRD YEAR LIMITED WARRANTY (MARVEL PROFESSIONAL PRODUCTS)
For designated Marvel Professional product, Marvel offers a one year extension of the two year warranty coverage from the date of purchase, free of charge. To take advantage of this third year warranty, you must register your product with Marvel within 60 days from the date of purchase at marvelrefrigeration.com and provide proof of purchase.
LIMITED FIVE YEAR SEALED SYSTEM WARRANTY
For five years from the date of original purchase, Marvel will repair or replace the following parts, labor not included, that prove to be defective in materials or workmanship: compressor, condenser, evaporator, drier, and all connecting tubing. All service provided by Marvel under the above warranty must be performed by a Marvel factory authorized servicer, unless otherwise specified by Marvel. Service provided during normal business
WARRANTY TERMS
These warranties apply only to products installed in any one of the fifty states of the United States, the District of Columbia, or the ten provinces of Canada. The warranties do not cover any parts or labor to correct any defect caused by negligence, accident or improper use, maintenance, installation, service, repair, acts of God, fire, flood or other
natural disasters. The product must be installed, operated, and maintained in accordance with the Marvel User Guide.
The remedies described above for each warranty are the only ones that Marvel will provide, either under these warranties or under any warranty arising by operation of law. Marvel will not be responsible for any consequential or incidental damages arising from the breach of these warranties or any other warranty, whether express, implied, or statutory. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. These warranties give you specific legal rights, and you may also have other rights which vary from state to state.
Any warranty that may be implied in connection with your purchase or use of the product, including any warranty of merchantability or any warranty fit for a particular purpose is limited to the duration of these warranties, and only extends to five years in duration for the parts described in the section related to the five year limited warranty
above. Some states do not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you.

• The warranties only apply to the original purchaser and are non-transferable.
• These warranties cover products installed and used for normal residential use only.
• The warranties apply to units operated outside only if designed for outdoor use by model and serial number.
• Replacement water filters, light bulbs, and other consumable parts are not covered by these warranties.
• The start of Marvel’s obligation is limited to four years after the shipment date from Marvel.
• In-home instruction on how to use your product is not covered by these warranties.
• Food, beverage, and medicine loss are not covered by these warranties.
• If the product is located in an area where Marvel factory authorized service is not available, you may be responsible for a trip charge or you may be required to bring the product to a Marvel factory authorized service location at your own cost and expense.
• Units purchased after use as floor displays, and/or certified reconditioned units, are covered by the limited one year warranty only and no coverage is provided for cosmetic defects.
• Signal issues related to Wi-Fi connectivity are not covered by these warranties.

For parts and service assistance, or to find Marvel factory authorized service near you, contact Marvel Refrigeration:
MarvelRefrigeration.com 
techsupport@MarvelRefrigeration.com
+616.754.5601
1260 E. Van Deinse St., Greenville, MI 48838
www.marvelrefrigeration.com
Marvel Refrigeration
1260 E. Van Deinse St.
Greenville MI 48838
616.754.5601
All specifications and product designs subject to change without notice.
Such revisions do not entitle the buyer to corresponding changes
improvements, additions, replacements or compensation for previously purchased products.

References

• two.no in parked
• partsformarvel.com

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