Scotsman TDE550 Service Manual Download Page 18

CLEANING and 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 long run, to avoid possible down time by keeping it clean; adjusting it as needed;
and by replacing worn parts before they can cause failure. The following is a list of recommended
maintenance that will help keep the machine running with a minimum of problems.
Maintenance and Cleaning should be scheduled at a minimum of twice per year.
Sanitizing of the ice storage bin should be scheduled for a minimum of 4 times a year.

Electrical power will be ON when doing in place
cleaning.

ICEMAKING SYSTEM: In place cleaning

1. Check and clean any water treatment devices, if
any are installed.

2. Remove screws and remove the upper front
panel.

3. Move the ON-OFF switch to OFF.

4. Remove the cover to the ice storage bin, and
remove the ice.

5. Remove the cover to the water reservoir and
block the float up.

6. Drain the water reservoir and freezer assembly
using the drain tube attached to the freezer water
inlet. Return the drain tube to its normal upright
position and replace the end cap.

7. Prepare the cleaning solution: Mix eight ounces
of Scotsman Ice Machine Cleaner with three
quarts of hot water. The water should be between
90-115 degrees F.

8. Slowly pour the cleaning solution into the water
reservoir until it is full. Wait 15 minutes, then
switch the master switch to ON.

9. As the ice maker begins to use water from the
reservoir, continue to add more cleaning solution
to maintain a full reservoir.

10. After all of the cleaning solution has been
added to the reservoir, and the reservoir is nearly
empty, switch the master switch to OFF.

11. After draining the reservoir, as in step 6, wash
and rinse the water reservoir.

To Sanitize:

Repeat steps 8-11, only use an approved
sanitizing solution in place of the cleaning
solution. A possible sanitizing solution to use could
be 1 ounce of household bleach mixed with 2
gallons of warm (95

o

F. - 115

o

F.) water.

12. Remove the block from the float in the water
reservoir.

13. Switch the master switch to ON

14. Continue ice making for at least 15 minutes, to
flush out any cleaning solution. Check ice for acid
taste - continue icemaking until ice tastes sweet.

DO NOT USE any ice produced from the
cleaning solution.

Be sure no ice remains in the bin.

15. Remove all ice from the storage bin.

16. Add warm water to the ice storage bin and
thoroughly wash and rinse all surfaces within the
bin.

17. Sanitize the bin cover, dispensing vane, bin
bottom, and interior with an approved sanitizer
using the directions for that sanitizer.

18. Replace the ice storage bin cover, and the front
panel.

Scotsman Ice Machine
Cleaner contains acids.

These compounds may
cause burns. If
swallowed, DO NOT
induce vomiting. Give
large amounts of water or
milk. Call Physician
immediately. In case of
external contact, flush
with water. Keep out of
the reach of children.

TDE550 & TDE650

August 1999

Page 18

Summary of Contents for TDE550

Page 1: ...s Page 3 FOR THE INSTALLER Wall Mount Kit Page 5 FOR THE PLUMBER Page 6 FOR THE ELECTRICIAN Page 7 FOR THE INSTALLER Final Check List Page 8 INITIAL START UP Page 9 COMPONENT DESCRIPTION Page 10 COMPO...

Page 2: ...WE 6A 48 5 x 26 x 22 5 same same same 41 x 26 x 22 5 same same same NUGGET same same same same same same same Air Water Air Water Air Water Air Water 115 60 1 115 60 1 230 50 1 230 50 1 115 60 1 115 6...

Page 3: ...ng plant it takes a raw material water and turns it into a food product ice The purity of the water is very important in obtaining pure ice and in maximizing product life This section is not intended...

Page 4: ...echanical hoist is recommended to lift it to the height required to install it The DMS machine stand has holes in the top that match up with threaded holes in the icemaker dispenser Place the cabinet...

Page 5: ...either side through the pre punched holes using standard plumbing practices Interior plumbing lines must be disconnected from the original connections and plugged when routing through the side or bas...

Page 6: ...a 3 8 FPT condenser inlet at the back of the cabinet The water pressure to all lines must always be above 20 psig and below 80 psig Drains Air Cooled Models There is one 3 4 FPT drain at the back of...

Page 7: ...achine requires a solid chassis to earth ground wire The ice maker should be connected to its own electrical circuit so it would be individually fused Voltage variation must remain within design limit...

Page 8: ...3 Have all of the plumbing connections been made and checked for leaks 4 Has the machine been leveled 5 Is there a minimum of 6 inches of clearance at the left and right sides of an air cooled machine...

Page 9: ...it should be 38 PSIG or 2 PSIG The air cooled discharge pressure will depend upon air and water temperatures but should be between 240 PSIG and 340 PSIG Water cooled discharge pressure should be abou...

Page 10: ...enses the presence of ice in the bottom of the ice discharge chute Operates to turn the ice machine on and off automatically as the level of ice in the bin changes Drain Tube When uncapped and lowered...

Page 11: ...where the two seal faces meet Ice Sweep A plastic cap with fingers It revolves with the auger to sweep the ice into the ice chute Breaker Where the ice is compressed and much of the extra water is sq...

Page 12: ...r Fan motor Bin drive motor Auger drive motor Water solenoid In addition a Clean switch is available to temporarily disable the Touch Free sensors for cleaning of the splash panel On Off Switch Manual...

Page 13: ...auger motor no longer receives power from the circuit board and the auger motor stops After a 6 minute delay If the ice level sensor is clear bin empty for more than 15 seconds the machine will start...

Page 14: ...es to the water regulating valve then to the water cooled condenser and down the drain There is also an additional water circuit to an electric valve When the Touch Free system senses a container for...

Page 15: ...rigerant depending upon the temperature of the evaporator warmer evaporators get more refrigerant and colder evaporators get less At the evaporator the refrigerant enters an area of relatively low pre...

Page 16: ...scharge out this chute as long as the vane is turning It stops when the dispensing vane stops If the container is in front of the Touch Free sensor on the right side the inlet water valve will open an...

Page 17: ...th sanitizer 4 The splash panel requires special attention to clean it Push and release the Splash Panel Cleaning switch located to the left of the water spout This disables the Touch Free sensors so...

Page 18: ...grees F 8 Slowly pour the cleaning solution into the water reservoir until it is full Wait 15 minutes then switch the master switch to ON 9 As the ice maker begins to use water from the reservoir cont...

Page 19: ...sensors from the grommets in the ice chute and wipe them clean 4 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 unscr...

Page 20: ...water treatment For more information on removal of these parts see REMOVAL AND REPLACEMENT 1 To remove the auger remove the front and top panels 2 Push bail clamp off of cover and remove cover 3 Unscr...

Page 21: ...e cannot keep up with needs Check for jam up of ice in dispense chute Pull chute down and allow ice to fall out Return chute to its normal place If there is ice check that the bin vane rotates if not...

Page 22: ...l sensor not shutting unit off when there is lack of water Will not dispense ice Vane turns ice is available but will not flow out of bin Check position of bin bottom It must have its slot over the ic...

Page 23: ...ce Normal 6 minute off delay start To prevent short cycling the machine will not restart after any shut off excpet power to the board until 6 minutes have passed 5 Off Timer ON Unit cycling off Too mu...

Page 24: ...reservoir 7 Remove mounting screws from reservoir bracket and remove reservoir from icemaker 8 Reverse to reassemble BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove front panel...

Page 25: ...he 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 bea...

Page 26: ...ad cap screws holding breaker to evaporator d Lift up remove breaker from evaporator e If the auger is stuck use a slide hammer type puller to pull on the auger at the threaded hole The size of that h...

Page 27: ...or 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 c...

Page 28: ...tor has been inspected fasten the evaporator to the gear motor be sure that the number of shims indicated on the gear case cover is in place between the gearcase cover and the drip pan gasket Torque t...

Page 29: ...kely 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...

Page 30: ...ipment is required to locate small refrigerant leaks Usually a leak detector capable of detecting a Halogenated refrigerant or HFC 134A will work Check with the leak detector manufacturer if in doubt...

Page 31: ...red This system has a critical charge it must be recharged with the correct amount of refrigerant as listed on the nameplate of the ice machine or performance will suffer Anytime the refrigeration sys...

Page 32: ...itch off the vacuum pump 2 Place a drum of R 404A onto an electronic scale 3 Attach the charging hose to the drum 4 Open the valve on the drum and purge the charging hose 5 Zero out the scale 6 Shut t...

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