English dropdown-ico

Manual Scotsman Ice NME454

32 pages 1.17 mb
Download

Go to site of 32

Summary
  • Scotsman Ice NME454 - page 1

    INTRODUCTION To the owner or user: The service manual you are reading is intended to provide you, and the maintenance or service technician, with the information needed to install, start up, clean, maintain, and service this ice system. This is a modular ice system that fits a variety of Scotsman ice storage bins. Its features include: front servic ...

  • Scotsman Ice NME454 - page 2

    FOR THE INSTALLER These machines fit the following Scotsman products, check sales literature for other possible combinations: · SB480 and extensions (with bin top KBT18) · B530 using bin top KBT14 or KBT20 · B842 using bin top KBT28 · B948 using bin top KBT24 NME654 Dispenser Applications The NME654 can be placed on and used with certain ice an ...

  • Scotsman Ice NME454 - page 3

    NME454, 654 & FME504, 804 January 2007 Page 3 *Bin Top Kit Required SAMPLE BIN AND MACHINE COMBINATIONS FME804 ON BH550* NME654 ON BH801* The Nameplate is located on the back of the machine. A Serial Number Plate is located inside the cabinet, behind the front panel. ...

  • Scotsman Ice NME454 - page 4

    FOR THE INSTALLER Location: Install the machine be installed in a location where it has enough space around it to be accessible for service. A minimum of 6" must be allowed at the back and sides for air circulation on air cooled models. Try to avoid hot, dirty and crowded locations. Be sure that the location for the machine is within the envir ...

  • Scotsman Ice NME454 - page 5

    NME454, 654 & FME504, 804 March 2006 Page 5 FOR THE INSTALLER: Location TWO UNITS ON ONE BIN ALLOW ROOM FOR AIR CIRCULATION AND SERVICE ACCESS ALLOW AIR SPACE ON BOTH SIDES Airflow Notice: Airflow changed in 2006. Prior model's air flow was in the front and out the back. Current model's (shown) air flow is in the sides and out the bac ...

  • Scotsman Ice NME454 - page 6

    FOR THE PLUMBER CONFORM TO ALL APPLICABLE CODES Water Inlet Air Cooled Models: Use 3 8 " O.D. copper tubing to connect cold potable water to the 3 8 " male flare fitting at the back of the cabinet. Install a hand valve near the machine to control the water supply. Water Treatment: In most areas, a water filter of some type will be useful. ...

  • Scotsman Ice NME454 - page 7

    FOR THE ELECTRICIAN CONFORM TO ALL APPLICABLE CODES Connect the electrical power to the machine to the wires in the junction box at the rear of the machine. Check the nameplate (located on the back panel) for the voltage requirements, and for the minimum circuit ampacity. The machine requires a solid chassis to earth ground wire. The ice machine sh ...

  • Scotsman Ice NME454 - page 8

    FOR THE INSTALLER Final Check List 1. Is the ice system installed indoors in a location where the air and water temperatures are controlled, and where they do not exceed the design limitations? 2. Is there an electrical service disconnect within sight of the installed machine? Has the voltage been checked, and compared to nameplate requirements? 3. ...

  • Scotsman Ice NME454 - page 9

    INITIAL START UP Pre-Start Inspection 1. Remove the front and side service panels. 2. Check that any shipping blocks have been removed. 3. Inspect the interior of the machine for loose screws or wires. Check that no refrigerant lines are rubbing each other. Check that the fan blade turns freely (air cooled). 4. Check that the unit is installed corr ...

  • Scotsman Ice NME454 - page 10

    COMPONENT DESCRIPTION Control Box: Contains the electrical controls that operate the machine. High Pressure Cut Out Switch : An automatic reset switch sensing the high side refrigeration pressure. It is set to shut the machine off if the discharge pressure should ever exceed 450 PSIG. Low Pressure Cut Out Switch An automatic reset control that shut ...

  • Scotsman Ice NME454 - page 11

    COMPONENT DESCRIPTION Evaporator : A refrigerated vertical tube filled with water and containing a water seal and auger. Auger: A solid stainless steel double spiral auger, it pushes the ice crystals up to the top of the evaporator. Water Seal: A two part “face” seal, the top half rotating with the auger, the bottom half stationary, the sealing ...

  • Scotsman Ice NME454 - page 12

    CONTROL BOX COMPONENTS Contactor: A definite purpose contactor connecting the compressor to the power supply. AutoSentry Ô Control Board The control board receives input signals from several sensors and translates them to control the electrical power supply to the various loads. The sensors include: · Electric eyes to check the ice level in the b ...

  • Scotsman Ice NME454 - page 13

    ELECTRICAL SEQUENCE: There are 7 indicator lights on the control board: · WTR-OK (Water OK) . Green. Normal = Glowing. Glows when there is water in the reservoir. · PWR-OK (Power OK). Green. Normal = Glowing. Glows when the control board has power and is functional. · Service. Red. Normally Off. · Freeze. Red. Normally glowing when making ice. ...

  • Scotsman Ice NME454 - page 14

    OPERATION: Water Water enters the machine through the 3/8" male flare at the rear of the cabinet, goes to the water reservoir which it enters through the float valve. The water then goes out the bottom of the reservoir tank to the bottom of the evaporator. Reservoir overflow or evaporator condensation is routed to the drain. Water cooled model ...

  • Scotsman Ice NME454 - page 15

    OPERATION: Refrigeration Beginning at the compressor, the refrigerant is compressed into a high temperature gas. The discharge line directs this gas to the condenser. At the condenser (air or water cooled) the gas is cooled by either air or water and it then condenses into a liquid. This high pressure liquid then goes through the liquid line to the ...

  • Scotsman Ice NME454 - page 16

    NME454, 654 & FME504, 804 January 2007 Page 16 OPERATION: Performance Typical Low Side Pressure · Air Cooled: 34 - 38 PSIG · Water Cooled: 32 PSIG Typical Discharge Pressure · Air Cooled: 220 - 300 PSIG · Water Cooled: 245 PSIG Typical Compressor Amp Draw · 8-9 Typical Auger Drive Motor Amp Draw (115 volt) · 3.1 to 3.5 - Emerson · 4t o4 ...

  • Scotsman Ice NME454 - page 17

    CLEANING & SANITIZING A Scotsman Ice System represents a sizable investment of time and money in any company ’s business. In order to receive the best return for that investment, it MUST receive periodic maintenance. It is the USER’S RESPONSIBILITY to see that the unit is properly maintained. It is always preferable, and less costly in the ...

  • Scotsman Ice NME454 - page 18

    1. The bin control is a device that senses light, therefore it must be kept clean so it can “see”. At least twice a year, remove the bin control sensors from the base of the ice chute, and wipe the inside clean, as illustrated . 2. The ice machine senses water level by a probe located in the water reservoir. At least twice a year, the probe sho ...

  • Scotsman Ice NME454 - page 19

    NME454, 654 & FME504, 804 January 2007 Page 19 Clean the air cooled condenser. The air flow on this model is from front to back, so the inside of the machine will have to be available to clean the air cooled condenser. Use a vacuum cleaner or coil cleaner if needed. Do NOT use a wire brush. A. Disconnect electrical power, and remove the filter. ...

  • Scotsman Ice NME454 - page 20

    The bearing in the breaker should also be checked at least two times per year . A. Check the bearing by: · removing the ice chute cover · unscrewing the ice sweep · removing the water shed & unscrewing the breaker cover (left hand threads). · unscrewing the auger stud Inspect the bearing. There should be plenty of grease in sight. If grease ...

  • Scotsman Ice NME454 - page 21

    AUGER MAINTENANCE In some areas, the water supply to the ice maker will contain a high concentration of minerals, and that will result in an evaporator and auger becoming coated with these minerals, requiring a more frequent removal than twice per year. If in doubt about the condition of the evaporator and auger, the auger can be removed so the par ...

  • Scotsman Ice NME454 - page 22

    NME454, 654 & FME504, 804 January 2007 Page 22 SERVICE DIAGNOSIS Symptom Possible Cause Probable Correction No ice is made, nothing operates Unit off due to no power Restore Power Unit off due to master switch in OFF position. Switch master switch to ON. Unit off due to low water level. Check water supply, filter, strainer, float valve. Correct ...

  • Scotsman Ice NME454 - page 23

    NME454, 654 & FME504, 804 January 2007 Page 23 SERVICE DIAGNOSIS Symptom Possible Cause Probable Correction Water Leak Drain plugged up Clean out drain Tubing cracked Replace tubing Condensation on drain tubing Insulate tubing Hose off Reattach hose Reservoir cover off Return cover to reservoir Reservoir cracked Replace reservoir Evaporator wat ...

  • Scotsman Ice NME454 - page 24

    NME454, 654 & FME504, 804 January 2007 Page 24 CONTROL SYSTEM DIAGNOSTICS The control system consists of: · Control Board · Water Sensor · Ice Sensors · High Pressure Cut Out · Low Pressure Cut Out If the unit is OFF, check the control board: 1. Is the Power OK light on? If not check power to the unit. If it has power, and the Power OK lig ...

  • Scotsman Ice NME454 - page 25

    BIN CONTROLS (Ice Level Sensors) 1. Disconnect electrical power. 2. Remove front panel. 3. Remove control box cover. 4. Locate ice chute, at the base of the chute, in front of and behind it are two plastic bin control mounts. 5. Slide each bin control to the left, and in the control box, disconnect the electrical leads connecting the bin control to ...

  • Scotsman Ice NME454 - page 26

    NME454, 654 & FME504, 804 January 2007 Page 26 REMOVAL AND REPLACEMENT: Bearing And Breaker Note: Removal of the auger, water seal, evaporator and gear reducer must begin at the top of the assembly. To Remove the Breaker Bearing Assembly: 1. Remove panels and disconnect electrical power. 2. Pull the bail clamp off of the chute cover. 3. Unscrew ...

  • Scotsman Ice NME454 - page 27

    To Remove the Auger: Turn off the water to the machine, and unclip the evaporator drain hose, pull it down and drain the evaporator into the bin or a container. 1. The top panel must be removed. 2. Remove bail clip and remove ice chute cover. 3. Unscrew ice sweep. 4. Remove ice chute body. 5. The auger and breaker/bearing may now be removed as an a ...

  • Scotsman Ice NME454 - page 28

    To Remove the Water Seal: (Assuming all steps to remove the auger have been performed.) 1. The gearmotor/evaporator assembly will have to be exposed. 2. Remove the 4 hex head cap screws holding the evaporator to the gearmotor assembly. Lift the evaporator up and off of the gearmotor. 3. Remove the snap ring or wire retainer from the grove under the ...

  • Scotsman Ice NME454 - page 29

    To Replace the Evaporator: (Assuming all the steps for removal of the thrust bearing, breaker, auger, and water seal have been performed.) 1. Recover the refrigerant from the ice maker. 2. Unsweat the refrigerant connections: a) At the thermostatic expansion valve outlet. Heat sink the TXV body when unsweating or resweating the adjacent tubing. b) ...

  • Scotsman Ice NME454 - page 30

    To Check the Motor: 1. Remove wires from terminals 1 and 2. 2. Use an ohmmeter to check for continuity. If there is none, replace the motor only. If there is continuity, but the motor will not start, check the motor's start switch. 3. Remove motor end bell or motor stator. With ohmmeter wires attached to 1 and 2, move centrifugal switch actuat ...

  • Scotsman Ice NME454 - page 31

    NME454, 654 & FME504, 804 January 2007 Page 31 REFRIGERATION SYSTEM SERVICE General: This ice machine uses R-404A refrigerant and polyolester oil. Do NOT use mineral oil in this refrigeration system. · When the system is serviced, a special liquid line drier is required. It is included with replacement compressors. · R-404A is not compatible ...

  • Scotsman Ice NME454 - page 32

    NME454, 654 & FME504, 804 January 2007 Page 32 WHAT TO DO BEFORE CALLING FOR SERVICE If the machine is off, not making ice: 1. Check the water supply to the ice machine. The machine is designed to shut off if there is no water to it. Check the filters if there are any. 2. Check the power supply to the machine. Reset the breaker if it is tripped ...

Manufacturer Scotsman Ice Category Ice Maker

Documents that we receive from a manufacturer of a Scotsman Ice NME454 can be divided into several groups. They are, among others:
- Scotsman Ice technical drawings
- NME454 manuals
- Scotsman Ice product data sheets
- information booklets
- or energy labels Scotsman Ice NME454
All of them are important, but the most important information from the point of view of use of the device are in the user manual Scotsman Ice NME454.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Scotsman Ice NME454, service manual, brief instructions and user manuals Scotsman Ice NME454. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Scotsman Ice NME454.

Similar manuals

A complete manual for the device Scotsman Ice NME454, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Scotsman Ice NME454 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Scotsman Ice NME454.

A complete Scotsman Ice manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Scotsman Ice NME454 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Scotsman Ice NME454, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Scotsman Ice NME454, that we can find in the current document
3. Tips how to use the basic functions of the device Scotsman Ice NME454 - which should help us in our first steps of using Scotsman Ice NME454
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Scotsman Ice NME454
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Scotsman Ice NME454 in a specific country, if it was not possible to solve the problem on our own.

Do you have a question concerning Scotsman Ice NME454?

Use the form below

If you did not solve your problem by using a manual Scotsman Ice NME454, ask a question using the form below. If a user had a similar problem with Scotsman Ice NME454 it is likely that he will want to share the way to solve it.

Copy the text from the picture

Captcha
New picture

Comments (0)