Scotsman TDE550 Service Manual Download 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 maker-dispenser.

The TDE650 is a combination nugget ice maker
and countertop dispenser, with the option of wall
mounting.

The TDE650 ice making section is equipped with
the following features: electronic controls for bin
level and low water; thermostatic expansion valve;
front service for most components; and R-404A
(HP62) refrigerant. The ice dispensing section is a
seamless plastic storage bin, with a stainless steel
rotating vane to sweep the ice into the dispensing
chute.

Table of Contents

FOR THE INSTALLER: Specifications . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 2

FOR THE INSTALLER: Environmental Limitations . . .   . . .   . . .   . . .   . . .   .

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

COMPONENT DESCRIPTION: Control Box

. .   . . .   . . .   . . .   . . .   . . .   .

Page 12

ELECTRICAL SEQUENCE

. . .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 13

OPERATION: Water

. .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 14

OPERATION: Refrigeration . . .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 15

OPERATION: Ice Vending

. . .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 16

DISPENSE AREA SANITATION .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 17

CLEANING and SANITIZING

. .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 18

MAINTENANCE AND CLEANING

. . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 19

SERVICE DIAGNOSIS

.   . . .   . . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 21

SERVICE DIAGNOSIS: Circuit Board . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 23

REMOVAL AND REPLACEMENT

. . .   . . .   . . .   . . .   . . .   . . .   . . .   .

Page 24

REMOVAL AND REPLACEMENT: Bearing And Breaker

. . .   . . .   . . .   . . .   .

Page 25

REMOVAL AND REPLACEMENT: Water Seal

.   . . .   . . .   . . .   . . .   . . .   .

Page 27

TO REMOVE AND REPAIR THE GEARMOTOR ASSEMBLY

.   . . .   . . .   . . .   .

Page 29

REFRIGERATION SERVICE: R-404A (HP62)

.   . . .   . . .   . . .   . . .   . . .   .

Page 30

Parts Lists and Wiring Diagrams are printed on
yellow paper in the center of this manual.

This manual was printed on recycled paper.

Keep it for future reference.

Note this symbol when it appears.

It marks a possible hazard.

TDE550 & TDE650

November 1995

Page 1

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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