Scotsman FM800 Bedienungsanleitung

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.

The FM800 is a modular ice system that fits a

variety of Scotsman ice storage bins.

It features: front service for the freezer,

gearmotor, control box, water reservoir, and

bin control; an electronic circuit for monitoring

ice and water level; a thermostatic expansion

valve; and R-502 as the refrigerant.

TABLE OF CONTENTS

Installation

For the Installer

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Two units on one bin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

For the Electrician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Maintenance and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Removal and Replacement

Reservoir and Bin Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Bearing and Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Water Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Gearmotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Fan Motor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Electronic Tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper.

FM800

December, 1988

Page 1

FOR THE INSTALLER

The FM800 is designed to fit the following

Scotsman storage bins:

B590 and extensions (with bin top KBT18)

BH800 using bin top KBT15 (one unit).

BH800 (two units, no bin top required).

BH1000 using bin top KBT16.

When installing a new system, check to be

sure that you have everything you need

before beginning:

Correct Bin

Correct Ice Machine

Correct Bin Top (if required)

All kits, legs, and information required for

the specific job.

Installation Limitations:

This ice system is designed to be installed

indoors, in a controlled environment:

Min Max

Air Temperature 500F 1000F

Water Temperature 400F 1000F

Water Pressure 20 PSI 80 PSI

Voltage -5% +10%

(Compared to the nameplate)

Operating the machine outside of the

limitations is misuse and can void the warranty.

Model Number

FM800AE-1A

FM800WE-1A

FM800AE-32A

FM800WE-32A

Diminsions

(w/o bin)

H X W X D

27" x 21" x 24"

same

Basic

Electrical

115/60/1

same

208-230/60/1

same

Ice Type

FLAKE

same

Condenser

Type

Air

Water

Air

Water

Minimum

Circuit

Ampacity

20.7

16.8

11.4

10.2

Max

Fuse

Size

Comp.

H.P.

3/4

The normal finish for the ice machine is

enamel-sandalwood. A stainless steel panel

kit, SPKFM21 may be field installed to convert

the unit to a stainless steel finish.

Note: Minimum Circuit Ampacity is used to determine wire size and type per national electric code.

ELECTRICAL

INLET

2.1"

5.7"

WATER INLET

3/8" FLARE

DRAIN

3/4" FPT

BACK VIEW: AIR COOLED

5.25"

9.5"

Note: Allow 6"

behind and 6"

above either unit

for air circulation,

utility connections,

and service. ELECTRICAL

INLET

WATER

INLET

7.3"

5.25"

3.4"

7.46"

Condenser Inlet 3/8" FPT

Condenser Drain 1/2" FPT

DRAIN

3/4" FPT 4.9"

2.9"

9.43"

BACK VIEW: WATER COOLED

SPECIFICATIONS: ICE MAKER

FM800

December, 1988

Page 2

FOR THE INSTALLER

33"

30.5"

22.38" 32.5"

21.12"

42.25"

32"

4" 4.88"

B590E

B590S

DIMENSIONS

H" x W" x D"

32 x 42.5 x 30.5

same

STORAGE

CAPACITY

590 lbs.

same

FINISH

Enamel

Stainless Steel

MODEL

Scotsman Ice Systems are designed and

manufactured with the highest regard for

safety and performance. They meet or

exceed the standards of UL, NSF, and CSA.

Scotsman assumes no liability or

responsibility of any kind for products

manufactured by Scotsman that have been

altered in any way, including the use of any

part and/or other components not

specifically approved by Scotsman.

Scotsman reserves the right to make design

changes and/or improvements at any time.

Specifications and design are subject to

change without notice. 1.25" 21.12" Drain

3/4"

FPT

B590

FM800

December, 1988

Page 3

FOR THE INSTALLER

Location:

After uncrating and inspection, the unit is

ready for installation. It is important that the

machine be installed in a location where it has

enough space around it to be accessible for

service, and minimum of 6" be allowed at the

back 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 environmental limitations.

Storage Bin:

Tip the storage bin on its back, using parts of

the carton to protect the exterior finish. Install

the legs into the threaded holes in the bottom

of the bin. Turn the leg levelers all the way in

preparation for leveling later. Return the bin to

the upright position, remove paper covering

the bin gasket.

Note: Do not push bin into position, but lift it

there. Pushing a bin, especially one with ice in

it, can cause damage to the legs and the leg

mounts.

Install the appropriate bin top on the bin,

according to the instructions for the bin top.

Ice Maker:

The machine is heavy, so the use of a

mechanical lift is recommended for lifting the

machine high enough to install on top of the

bin. After the unit is placed on the bin, line it

up so it is even with the back side. Secure the

machine to the bin with the hardware provided

with the machine.

Remove the front panel and remove any

shipping blocks.

Typical Storage Bin with Extension and Bin Top

FM800

December, 1988

Page 4

FOR THE INSTALLER: Location

TWO UNITS ON ONE BIN

ALLOW ROOM

FOR AIR

CIRCULATION

AND SERVICE

ACCESS

DO NOT STACK ANYTHING IN

FRONT OF THE MACHINE(S)

FM800

December, 1988

Page 5

FOR THE PLUMBER

CONFORM TO ALL APPLICABLE CODES

Water Inlet

Air Cooled Models: The recommended water

supply is clean, cold water. Use 3/8" O.D.

copper tubing, connect to the 3/8" male flare

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. In areas where the

water is highly concentrated with minerals the

water should be tested by a water treatment

specialist, and the recommendations of the

specialist regarding filtration and/or treatment

should be followed.

Water Cooled Models: A separate 3/8" O.D.

copper line is recommended, with a separate

hand valve to control it. It is connected to 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 120 psig.

Drains

Air Cooled Models: There is one 3/4" FPT

drain at the back of the cabinet, the drain line

is of the gravity type, and 1/4 inch per foot fall

is an acceptable pitch for the drain tubing.

There should be a vent at the highest point of

the drain line, and the ideal drain receptacle

would be a trapped and vented floor drain.

Use only 3/4" rigid tubing.

Water Cooled Models: In addition to the

above mentioned drain, a separate condenser

drain must be installed. Connect it to the 1/2"

condenser drain connection at the back of the

cabinet.

Storage Bin: A separate gravity type drain

needs to be run, similar to the air cooled drain.

Insulation of this drain line is recommended.

AIR COOLED

MODELS

HAND

VALVE

FIELD

SUPPLIED

FILTER

WATER

INLET

VENTED

DRAIN

WATER

COOLED

HAND

VALVE

CONDENSER

INLET

WATER

FILTER CONDENSER

DRAIN VENTED

DRAIN

FM800

December, 1988

Page 6

FOR THE ELECTRICIAN

CONFORM TO ALL APPLICABLE CODES

The electrical power to the unit is supplied

through 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 maker should be connected to its own

electrical circuit so it would be individually

fused. Voltage variation must remain within

design limitations, even under starting

conditions.

All external wiring must conform to

national, state, and local electrical codes.

The use of a licensed electrician is

required to perform the electrical

installation.

WATER COOLED

AIR COOLED

POWER

SUPPLY

FM800

December, 1988

Page 7

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. Have all the plumbing connections been

made and checked for leaks?

4. Has the machine and bin been leveled?

5. Is there a minimum of 6" clearance at the

back of the machine for proper service access

and air circulation?

6. Is the water pressure a minimum of 20 psig?

7. Has the machine been secured to the bin?

8. Is there clearance over the top of the

machine for service access?

9. Is there a water shut off valve installed near

the machine?

10. Have all of the shipping blocks been

removed?

FM800

December, 1988

Page 8

START UP Pre-Start Inspection

1. Remove the front and side service panels.

2. Check that the styrofoam 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 correctly

according to the final check list (page 8).

Start Up

1. Go through the prestart inspection.

2. Open the hand valve, observe that water

enters the water reservoir, fills the tube from

the reservoir to the evaporator, and then shuts

off. Check for leaks.

3. Switch the master switch on.

The electrical start up sequence is now on

automatic.

A. There should be a short (15 second) delay

before the gearmotor starts.

B. After the gearmotor starts, the compressor

will start.

4. On air cooled models, the condenser will

begin to discharge warm air, on water cooled

models, the water regulating valve will open,

and warm water will be discharged into the

drain.

5. The unit should soon be making ice, if

desired, the low side pressure can be

checked: it should be 30 psig + or - 4 psig.

The suction line temperature at the

compressor is normally very cold, nearly to the

point of frost up to the compressor body, but

not on it.

The air cooled discharge pressure will depend

upon air and water temperatures, but should

be between 200 psig and 280 psig.

The water cooled discharge pressure should

be constant at about 220 psig.

The above numbers are for new, clean

machines, you can expect to see some values

higher, and some lower between different

units.

6. THERE ARE NO ADJUSTMENTS TO

MAKE, so replace the panels.

7. Clean and/or sanitize the storage bin

interior, wipe off the exterior with a clean,

damp cloth.

8. Give the owner/user the service manual,

instruct him/her in the operation of the unit,

and make sure they know who to call for

service.

9. Fill out the manufacturers registration card,

and mail it to the Scotsman Factory.

10. Fill out the field quality audit form, and mail

it to the Scotsman factory.

FM800

December, 1988

Page 9

COMPONENT DESCRIPTION

Control Box: Contains the electrical controls

that operate the machine.

High Pressure Cut Out Switch: A manual

reset switch sensing the high side refrigeration

pressure. It is set to shut the machine off, and

illuminate the reset switch light if the discharge

pressure should ever exceed 450 psig.

Reset Switch: A manual reset switch, used

for restarting the ice machine should the ice

discharge chute overfill with ice; the low

pressure cut out switch open; or the high

pressure cut out switch open.

Evaporator: A vertical stainless steel tube,

refrigerated, and water filled. In it there is a

stainless steel auger.

Compressor: The refrigerant vapor pump.

Reservoir: Float operated, it maintains the

water level in the evaporator at a constant

level, it also contains the water level sensor.

Water Level Sensor: Senses if there is water

in the reservoir to make ice out of. Will shut

the machine off it there is none.

Ice Discharge Chute: Directs the ice

produced by the evaporator into the storage

bin.

Ice Level Sensor: An electronic "eye", it

senses 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.

Gear Motor: An oil filled, speed reduction

gearbox, driving the auger.

Drain Tube: When uncapped and lowered,

drains the evaporator.

Condenser: Air or water cooled, where the

heat removed in ice making is discharged.

Expansion valve: The refrigerant metering

device.

AIR COOLED

CONTROL BOX

CONDENSER

EXPANSION

VALVE

RESERVOIR

ICE CHUTE

COMPRESSOR ICE LEVEL

SENSORS

DRAIN

TUBE

WATER COOLED

CONTROL BOX

CONDENSER

EXPANSION

VALVE

RESERVOIR

ICE CHUTE

ICE LEVEL

SENSORS

HIGH

PRESSURE

CUT OUT

FM800

December, 1988

Page 10

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