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N0922L, N1322L, F1222L, F1522L

Remote Low Side Service Manual Includes Prodigy Plus

December 2014

Page 9

Refrigeration

BTUH Capacity Requirements

Model

BTUH

N0922L, F1222L

5,000

N1322L, F1522L

7,200

Condensing Units

Model Use Condensing Unit

N0922L or F1222L

NME954-RHS-A/C

N1322L or F1522L

None - rack only

Remote low side models require connection to a

dedicated condensing unit or a rack system.

Recommended Tubing from Head to Condensing Unit

• Suction Line: 5/8" OD

• Liquid Line: 3/8" OD

Distance limits:

• Maximum distance between dedicated condensing

unit and head: 75 feet.

• Condensing Unit Elevation over Ice Making

Section: 35 feet.

Note: Elevations greater than 20 feet require

installation of a suction line trap at the 10 foot mark.

Ice Making Section

• Elevation over Condensing Unit: 15 feet.

Line Routing:

• Allowed: One rise after a drop.

• Allowed: One drop after a rise.

• Not Allowed: More than one rise after a drop

• Not Allowed: More than one drop after a rise

Roof Attachment

Install and attach the remote condensing unit to the

roof of the building, using the methods and practices

of construction that conform to the local building

codes, including having a roofing contractor secure

the condenser to the roof.

Refrigeration Installation:

Connections

The liquid and suction fittings on the back of the

cabinet are stubs. The liquid line size is 3/8" OD. The

suction line size is 5/8" OD.

1. Recover holding charge

2. Cut the stubs off.

3. Braze line set tubing to each fitting. Sweep with

dry nitrogen while brazing.

4. Dedicated condensing unit: Evacuate complete

system to 50 microns.

5. Open the ball valves.

Rack: The skills of a refrigeration technician are

required to connect the ice machine to the building’s

refrigeration system.

Notes:

• R-404A models: 1.5 ounces of R-404A refrigerant

is in the system as a holding charge.

• Be sure the liquid connection is NOT in series with

another liquid line valve.

• Local Codes must be observed.

Dedicated condensing unit: Add refrigerant charge.

Recommended starting field charge:

• N0922L or F1222L: 8 lb R-404A

• N1322L of F1522L: n/a - rack only

Содержание F1222L

Страница 1: ...Service Manual for Remote Low Side Modular Flaked and Nugget Ice Machines including Prodigy Plus D Series Models F1222L F1322L N0922L and N1322L ...

Страница 2: ...eration Page 9 Final Check List Page 10 Initial Start Up Page 11 Controller Page 12 AutoAlert and Display Code Page 13 Component Indicator Lights Page 14 Electrical Component Details Page 15 Sequence of Operation Page 16 Electrical Sequence with Condensing Unit Page 17 Water System Page 18 Remote Refrigeration with Condensing Unit Page 19 How Ice Is Made Page 20 Scale removal Page 21 Check Top Bea...

Страница 3: ...s are recommended to remove suspended solids Some filters have treatment in them for suspended solids Check with a water treatment service for a recommendation RO water This machine can be supplied with Reverse Osmosis water but the water conductivity must be no less than 10 microSiemens cm Potential for Airborne Contamination Installing an ice machine near a source of yeast or similar material ca...

Страница 4: ...se KBT39 B948S Use KBT38 for a single unit B948S Use KBT38 2X for two units side by side BH1100 BH1300 and BH1600 upright bins include filler panels to accommodate a single 22 inch wide flake or nugget ice machine No adapter is needed Dispenser compatibility Only nugget ice models may be used with ice dispensers Flaked ice is not dispensable ID150 use KBT42 and KDIL PN 150 includes KVS KNUGDIV and...

Страница 5: ...7 00 68 6 22 70 57 7 FRONT VIEW 24 00 61 LEFT SIDE VIEW 1 59 4 2 63 6 7 14 36 36 5 16 86 42 8 18 81 47 8 21 81 55 4 13 35 33 9 BACK VIEW 5 8 O D REMOTE SUCTION CONNECTION 3 8 O D REMOTE LIQUID LINE CONNECTION 3 4 FPT DRAIN 3 8 FLARE MACHINE WATER INLET 120 VOLT CORD ICE DROP OPENING PLAN VIEW ULTRA SONIC BIN LEVEL SENSOR OPTIONAL 24 00 REF 61 22 00 REF 55 9 2 92 7 4 6 48 16 5 2 81 7 1 4 30 10 9 16...

Страница 6: ...e onto the adapter Note The machine is heavy Use of a mechanical lift is recommended Position the machine on the bin or adapter Secure with straps from the hardware bag packed with the machine or those supplied with the adapter Remove any plastic covering the stainless steel panels Remove any packaging such as tape or foam blocks that may be near the gear reducer or ice chute Level the bin and ice...

Страница 7: ...ater level and the float valve water inlet orifice Drain There is one FPT condensate drain fitting at the back of the cabinet Tubing Connect the potable water supply to the potable water fitting 3 8 OD copper tubing or the equivalent is recommended Connect the drain tube to the condensate drain fitting Vent this drain tube Do not Tee ice machine drains into the drain tube from the ice storage bin ...

Страница 8: ... is recommended to avoid unintended shut downs If a dedicated condensing unit is connected to this machine it will have a separate power supply Do not use an extension cord Follow all local and national codes Model Dimensions w x d x h Voltage Volts Hz Phase Min Circuit Ampacity Max Fuse Size cord connected All 22 x 24 x 27 115 60 1 5 8 15 3 8 OD Liquid Line Stub 5 8 OD Suction Line Stub Power Cor...

Страница 9: ...one drop after a rise Roof Attachment Install and attach the remote condensing unit to the roof of the building using the methods and practices of construction that conform to the local building codes including having a roofing contractor secure the condenser to the roof Refrigeration Installation Connections The liquid and suction fittings on the back of the cabinet are stubs The liquid line size...

Страница 10: ...idges been replaced 13 Have all required kits and adapters been properly installed 14 Has the ice machine been properly connected to the condensing unit or rack Control Operation Use and Operation Once started the ice machine will automatically make ice until the bin or dispenser is full of ice When ice level drops the ice machine will resume making ice Caution Do not place anything on top of the ...

Страница 11: ...eeds five types of maintenance Remote condensing units need their condenser coils cleaned regularly All models need scale removed from the water system All models require regular sanitization All models require sensor cleaning All models require a top bearing check Maintenance Frequency Scale removal At least twice a year in some water conditions it might be every 3 months The yellow De Scale Sani...

Страница 12: ...Unit Remotely Locked Out Contact Leasing Company F F b C L d O E 1 1 2 2 3 4 All 4 Upper Lights Flashing Control Operation See Manual Water Light On De Scale Light On Test Mode Recall Diagnostic Codes Clear Diagnostic Codes Reset from Code 1 2 3 or 4 Restore water supply to machine Clean and sanitize machine Depress Off for 3 seconds then depress Clean for 3 seconds Depress Off for 3 seconds Press...

Страница 13: ...uger motor high load Shut Down 3 No water in reservoir The Status light is on Green when the machine has been switched to the ice making mode It will also blink green if the unit has been equipped with an optional Smart Board AND the Smart Board has detected potential malfunction The Water light will blink Red if the water sensor does not detect water The De Scale Sanitize light will glow Yellow w...

Страница 14: ...us Auger This light is ON when the auger motor is operating Ice Dispense Not used on this model not present on Prodigy Plus Control Button Use Recall diagnostic code Hold off button in for 3 seconds Release Press and release the Clean button to cycle through each of the last 10 error codes from most recent to oldest Clear diagnostic code Hold Clean and Off buttons in for 3 seconds to clear all pri...

Страница 15: ...lies power to controller only The Power light will be ON when the transformer has provided 12 volts AC to the controller Water Level Sensor Two probe conductivity sensor When water touches it the Water Present light will be ON Auger Motor Four pole split phase motor that operates the gear reducer When operating the Auger indicator light will be ON The gear reducer lowers the input speed from about...

Страница 16: ...ile will continuously stop the beam breaking the light to the receiver and that signals to the controller that the bin is full Additionally the control system uses the photo eyes to confirm ice making As the machine makes ice the falling ice causes breaks in the infrared beam In operation the first 6 minutes of ice making are ignored to give the machine time to start producing ice After that the c...

Страница 17: ... start the machine A flashing F will show in the code display while the auger drive motor starts up When it has started the liquid line valve will open and the flashing F will change to a continuous F An open liquid line valve allows refrigerant to flow from the condensing unit into the evaporator and suction line That raises the suction pressure at the condensing unit causing the low pressure swi...

Страница 18: ...d to the drain Water cooled models have a separate water circuit for the cooling water it enters the fitting at the rear goes to the water regulating valve then to the water cooled condenser and down the drain Water Level The correct water level should be checked when the machine is making ice Check the water level in the reservoir and compare it to the horizontal line molded into the side of the ...

Страница 19: ...upon the modulation of the head master From the receiver liquid refrigerant flows to the ice making head s thermostatic expansion valve At the expansion valve liquid refrigerant passes from a high pressure zone to one of relatively low pressure and in the low pressure zone it evaporates absorbing heat From the evaporator the refrigerant carrying the heat from ice making flows back to the compresso...

Страница 20: ...vaporator tube ice emerges from the water and is forced or extruded through relatively small openings This has the effect of squeezing out excess water and compressing the ice together into a useable form Ice flowing up from the openings is forced to one side breaking it into smaller lengths An ice sweep moves them to the chute Flaked ice machines have 6 oblong and curved slots that ice flows from...

Страница 21: ...r will shut off 11 Turn the water supply to the ice machine OFF 12 Drain the water reservoir and evaporator by disconnecting the leg of the hose connected to the water sensor and draining it into the bin or a bucket Return the hose to its original position Discard or melt all ice made during the previous step 13 To sanitize the water system mix a locally approved sanitizing solution An example of ...

Страница 22: ...shed unscrewing the breaker cover left hand threads 4 Inspect the top of the bearing When new the grease is white over time some gray will appear over the rollers that is normal Add grease to replace gray grease or if gaps between rollers are visible If grease is watery all gray or rust is visible have the bearing replaced See the next page for more information Note When checking the top bearing a...

Страница 23: ...re to inject grease evenly and thoroughly If the grease is uniformly white no further action is needed If very gray rusty wet or has any embedded metal have the bearing replaced Check Drip Pan For Water Change De Scale Notification Interval This feature is accessible only from standby Status Light Off 1 Press and hold Clean button for 3 seconds Starts the Time to Clean Adjustment State and display...

Страница 24: ...achine off See the kit s instructions for complete details Rotate the adjustment post to the desired ice level The machine will fill up to that level and when it shuts off the indicator light next to the adjustment post will be On Note The maximum fill position is when the arrow on the knob points to the arrow on the label Dispenser applications Nugget ice only Set the adjustment knob to either th...

Страница 25: ...ck controller component indicator light If there is power to the motor check motor windings Code 2 Auger motor draws too many amps controller shuts unit off Check that liquid line valve shuts off tightly Check for damage to gear reducer or auger bearings Bin Eyes Blocked light is On Ice is in the chute No ice in the chute Check position of sensors check sensors for scale build up Everything is in ...

Страница 26: ...n chute blocked Check controller display code If a b check for blockage or scale build up on photo eyes in chute Check for photo eye failure Optional Smart Board is controlling ice level Check Smart Board settings Ice level too high Adjustment knob set to maximum fill Check if knob s arrow points to label arrow Sensor wire disconnected Check for proper connection of sensor wire to VS control board...

Страница 27: ... Service the bearing Check for rust rough spots and damage a The bearing is pressed into the breaker to remove the bearing and replace it an arbor press is needed b Replace lower seals before installing new bearing in breaker Note Seals must be pressed in with a tool they will not install by hand A 2 PVC coupling works well as an insertion tool Seals install open side up Lip seals must be lubricat...

Страница 28: ... screws holding breaker to evaporator b Lift up on breaker and remove auger from evaporator Note If the auger is stuck the breaker must be removed from the auger The breaker may be removed from the auger and evaporator without disturbing the auger a Unscrew breaker cover from breaker left hand threads b Unscrew auger stud from top of auger c Unscrew 4 allen head cap screws holding breaker to evapo...

Страница 29: ...n and shining Sometimes an auger will appear clean when wet but after it is dry it will be seen to be stained Scrub the auger with ice machine cleaner and hot water Caution Ice machine cleaner is an acid Handle it with extreme care keep out of the reach of children 2 The water seal area Because the auger has been removed the water seal will have to be replaced Remove the water seal top half from t...

Страница 30: ...oating of food grade grease or oil and push the water seal into the bottom of the evaporator slightly past the groove for the snap ring 2 Replace the snap ring and pull the water seal down against it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part from the auger and clean the mounting area 4 Place a small bead of food grade silastic sealant such a...

Страница 31: ...om the liquid line 6 After installing a new water seal in the new evaporator see To Replace the Water Seal sweat in the new evaporator at the old tubing connections 7 Install an new drier in the liquid line 8 Evacuate the system until dehydrated then weigh in the nameplate charge Check for leaks 9 Install auger breaker breaker bearing assembly and ice discharge chute in reverse order of disassembl...

Страница 32: ...n is acceptable quickly check the gears and bearings They are likely to be fine if the oil is If there is evidence of water in the oil rusty bearings and gears the oil having a creamy white appearance oil level too high carefully inspect the bearings and gears If in doubt about the condition of a part replace it The oil quantity is 14 fluid ounces do not overfill Note The gears and bearings are av...

Страница 33: ...ine 8 Unsweat the expansion valve from the liquid line Remove it 9 Unsweat the drier from the liquid line Remove it 10 Connect nitrogen to discharge access valve 11 Immediately place new valve in ice machine 12 Open nitrogen bottle and braze expansion valve inlet and outlet joints together Braze new drier into system 13 Shut off nitrogen shut access valves 14 Evacuate to at least 300 microns 15 Op...

Страница 34: ...SCOTSMAN ICE SYSTEMS 775 Corporate Woods Parkway Vernon Hills IL 60061 800 726 8762 www scotsman ice com ...

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