Scotsman FME800, NME650 Installation Manual
INTRODUCTION
NME650 & FME800
To the own er or user: The ser vice manua l 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.
It feat ur es: fron t servic e for the freezer, gearmotor,
control box, water reservoir, and bin control; an
elect r on i c c ir c ui t for m on i to r i ng ic e an d w ater level;
a thermostatic expansion valve; and HP62 as the
refrigerant.
Table of Contents
FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAMPLE BIN AND MACHINE COMBINATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FOR THE PLU MBE R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FOR THE ELEC TR I CIAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ELECTRICAL SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
OPERATION: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
MAINTENANCE AND CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SERVICE DIAGNOSIS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
REMOVAL AND REPLACEMENT: Bin Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
REMOVAL AND REPLACEMENT: Bearing And Breaker . . . . . . . . . . . . . . . . . . . . . . . . . 25
REMOVAL AND REPLACEMENT: Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
REMOVAL AND REPLACEMENT: Water Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
REMOVAL AND REPLACEMENT: Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
REMOVA L AND REP LA C EM E NT : Ge ar mo to r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
REFRIGERATION SERVICE: HP62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
CIRCUIT BOARD TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Parts lists and wiring diagrams are in the center of this manual, printed on yellow paper.
This manual was printed on recycled paper.
Keep this manual for future reference.
Note this symbol when it appears.
February 1997
Page 1
It is an alert for important safety
information on a potential hazard.
NME650 & FME800
FOR THE INSTALLER
These machines fit the following Scotsman
products, check sales literature for other possible
combinations:
B90 and ext ensions (w i th bi n to p KB T 18 )
HTB555 or BH550 using bin top KBT 1 4 or KB T 20
BH800 us ing bin top KBT15 (one unit).
BH800 (two units, no bin top required).
BH900 us ing bin top KBT24.
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, l eg s, an d i nf orm a ti o n req uir e d fo r
the specific job.
Installation Limitations:
This ice system is designed to be installed indoors,
in a cont r oll e d environm en t:
Min. Max.
Air Temperature 50
Water Temperature 40
Water Pressu r e 20 PSI 80 PSI
Volta ge (f or 11 5v m od el ) 104 126
(Compared to the nameplate)
Operating the machine outside of the limitations is
misuse and can void the warranty.
0
F1000F
0
F1000F
The nor mal finish for the ice machine i s enamel.
A stain l ess steel panel k it, SPKFM2 1 m ay be f iel d
install ed to convert the uni t to a stainless steel
finish.
SPECIFICATIONS: ICE MAKER
Model Number Dimensions Basic
Electrical
FME800AE-1A 27" x 21" x 24" 115/60/1 Flake Air 19.5 30 24 ounces
FME800WE-1A same same same Water 18.3 30 20 ounces
FME800AE-6B same 230/50/1 same Air 24 ounces
FME800WE-6B same same same Water 20 ounces
NME650AE-1A same 115/60/1 Nugget Air 19.5 30 24 ounces
NME650WE-1A same same same Water 18.3 30 20 ounces
NME650AE-6B same 230/50/1 same Air 24 ounces
NME650WE-6B same same same Water 20 ounces
Note: Minimum Circuit Ampacity is used to determine wire size and type per national electric code.
Ice Type Condenser
Type
February 1997
Page 2
Minimum
Circuit Ampacity
Max.
Fuse Size
Refrigerant
Charge:
NME650 & FME800
SAMPLE BIN AND MACHINE COMBINATIONS
The Nameplate is
located on the back
of the machine.
FME800 ON BH550*
NME650 ON BH800*
FME800 ON BH900*
*Bin Top Kit Required
February 1997
Page 3
NME650 & FME800
FOR THE INSTALLER
Location:
After uncrating and insp ection, the unit is ready for
installation. It is important that the machine be
install ed in a location where it has enough space
around it to be accessible for service, and a
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.
Pushin g 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 instructi ons 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 i ns tall on top of the bi n. After the uni t i s
placed on the bin, line it up so it is even with the
back sid e. Secure the machine to the bi n wi th the
hardware provided with the machine.
Remove the front panel an d r emove any shipping
blocks.
Note: When placing 2 of the s e ma chi n es on a
BH800 without the bin top, removal of the 2
service panels facing each other will make future
service easier:
1. Remove the 2 top panel screws that will face
each other.
2. Remove the 2 service panels that will face each
other .
3. Add a str i p of gasket, such as Scotsman par t
number 19-0503-04, to the 2 base edges that will
face each other and around service panel space
on the 2 panels that will face each other.
When the 2 machines are placed on the bin, the
gaskets will seal the bin top area and the space
between the machines.
Water Limitations:
An ice machine is a food manufacturing plant: it
takes a raw material, water, and transforms 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 as a
complete resource for water related questions, but
it does of fer thes e general r e commendations:
1. Chec k wi t h a w at er tr e atment spec ialist for a
water test, and recommendations regarding filters
and treat m en t.
2. In most cases, the water us ed to make ice
should be filtered or treated, depending upon the
water.
effective in all situations.
is important.
Note:
Scotsman Ice Systems are designed and
manufactured w ith the highest regard for safety
and performance . Th ey m ee t or exceed the
standards of UL, NSF, and CUL.
Scotsman assumes no liability or responsibility of
any kind for pr o du c t s ma nu fa c t ur e d by Sc otsman
that ha ve been alt e r ed in any way, including the
use of any pa r t and/or other compon ents not
specifically ap pr oved by Scotsman.
Scotsman reserves the right to make design
chang es and/or improvem ents at any time.
Specifications and design are subject to change
without notice.
There is no one type of water filter that is
That is why a water test
February 1997
Page 4
FOR THE INSTALLER: Loc ation
TWO UNITS ON ONE BIN
ALLOW ROOM
FOR AIR
CIRCULATION
AND SERVICE
ACCESS
NME650 & FME800
DO NOT STACK ANYTHING IN
FRONT OF THE MACHINE(S)
February 1997
Page 5
NME650 & FME800
FOR THE PLUMBER
CONFORM TO ALL APPLICABLE CODES
Water Inlet
Air Cooled Models:
supply is clean, cold water. Use 3/8" O.D. copper
tubing, connec t to the 3/8" male flare at the back of
the cabi n et . Install a han d valve near th e m achine
to control the water supply.
Water Treatment:
some type will be useful. In areas where the water
is highl y c o nc e nt r ated with mi ne r al s t he wa te r
should be t est ed by a water treat ment special is t,
and the recommendations of the specialist
regard i ng fi l tr a ti o n an d/or treat m en t should be
followed.
Water Cooled Models:
copper l i ne is r ecommend ed , w i th a se pa r ate hand
valve to control it. It is connected to a 3/8" FPT
conden s er i nl e t at the back of th e c a bi n et . T he
water pressure to all lines must always be above
20 psig, and below 80 psig.
The recommended water
In most areas, a water fil t er of
A separ at e 3/8" O.D.
Drains
Air Cooled Models:
at the bac k of th e c a bi n et , th e dr a i n li ne is of the
gravity type, and 1/4 inch per foot fall is an
acceptable pitch for the drain tubing. Ther e should
be a vent at the highest point of the drain line, and
the ideal dr a i n r ec ep t a cl e w ou l d be a tr ap pe d and
vented f loor drain. U se only 3/4" rigid tubing.
Water Cooled Models
mentioned drain, a separate condenser drain must
be installed. Connect it to the 1/2" condenser
drain connection at th e ba c k of t he cab i ne t.
Storage Bin
to be run, similar to the air cooled drain. Insulation
of this drain line is recommended.
: A separate gravity type drain needs
There is on e 3/4" FPT dra i n
: In addi t i on to th e above
COOLED
HAND
VALVE
WATER
CONDENSER
INLET
WATER
FILTER
CONDENSER
DRAIN
VENTED
DRAIN
HAND
VALVE
WATER
INLET
AIR COOLED
MODELS
VENTED
DRAIN
FIELD
SUPPLIED
FILTER
February 1997
Page 6
FOR THE ELECTRICIAN
CONFORM TO ALL APPLICABLE CODES
NME650 & FME800
The electrical power to the unit is su pplied thr ough
the junc t i on box at the rear of the machine .
Check th e na m ep l ate (locat ed on the back pane l )
for the voltage requirem ents, and for the minimum
circuit ampacity. The machine requires a solid
chass i s t o ea r th gr ound wire.
WATER COOLED
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, an d local electrical codes. The use of a
licensed electrician is required to perform the
electr i ca l in s t al la t io n.
POWER
SUPPLY
AIR COOLED
February 1997
Page 7
NME650 & FME800
FOR THE INSTALLER
Final Check List
1. Is the ice system installed indoors in a location
where th e ai r an d w at er te m pe r atures are
contro lled, and where th ey do not exceed the
design limitations?
2. Is ther e an el e c tr ical serv i ce di sconnect 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 chec k ed for leaks ?
4. Has the machine and bin been leveled?
5. Is ther e a m inimum of 6" clearance at the ba ck
of the mac h i ne for proper serv ice acces s and air
circulation?
6. Is the w at er pr e s sure 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?
February 1997
Page 8
START UP
NME650 & FME800
Pre-Start Inspection
1. Remove the fron t and side service panels.
2. Check that the sty r ofoam shipping blocks have
been removed.
Start Up
1. Go through th e prestart inspe ction.
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 mast er sw i t ch on.
The electrical start up sequence is now on
automatic.
A. There should be a short (15 sec ond) delay
before the gearmotor starts.
B. After the gearmotor starts, the compressor will
start.
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
accord i ng to the final ch eck list (pag e 8) .
The air cooled discharge pressure will depend
upon air and water temperatures, but should be
between 220 psig and 300 psig.
The wat er cooled di scharge pressure should be
constant at about 245 psig.
The above numbers are for new, clean machines,
you can expect to see some values higher , and
some low e r bet w ee n di fferent un i ts .
6.
THERE ARE NO ADJUSTMENTS TO MAKE
so replace the panels.
7. Clea n and/or sanitize the storage bin inter i or,
wipe off the exter ior with a clean, damp cloth.
,
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 uni t s h ou l d soo n be making ic e, if desired,
the low side pressure can be checked: it should be
34 psig + o r - 4 psig.
The sucti on line temperatu r e at the compressor is
normall y very cold, ne ar l y to the point of fr o st up to
the compressor body, but not on it.
8. Give the ow ne r /user the se r vi ce manual, ins tr u c t
him/her in the op er ation of the unit, and make sur e
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.
February 1997
Page 9
NME650 & FME800
COMPONENT DESCRIPTION
Control Box:
Contains th e el e c t r i c al c o nt r ol s th at
operate the machine.
High Pressure Cut Out Switch
: A manual reset
switc h sensing the hi g h si d e r efrigeration press ur e .
It is set to shut the machine off if the discharge
pressure should ever exc eed 450 psig.
Compressor:
Reservoir:
The ref r igerant vapor pump.
Float operate d, it maintains the water
level i n th e ev a po r at or at a constant le vel, 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 no water.
AIR COOLED
Ice Discharge Chute
: Directs the ice pro duced
by the evaporat or into the st or age bin.
Ice Level Sensor:
An electronic “eye”, it senses
the pres ence of ice i n 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 chan ges.
Gear Motor:
An oil filled, speed reduction
gearbox, driving the auger .
Condenser:
Air or water c oo l ed , w he r e th e he at
remov e d i n i ce m aking is dis c ha r ged.
Expansion valve
: The refrigerant metering
device.
WATER COOLED
ICE CHUTE
CONTROL BOX
CONDENSER
EXPANSION
VALVE
RESERVOIR
DRAIN
TUBE
CONTROL BOX
CONDENSER
EXPANSION
VALVE
RESERVOI R
ICE CHUTE
COMPRESSOR
ICE LEVEL
SENSORS
February 1997
Page 10
HIGH
PRESSURE
CUT OUT
ICE LEVEL
SENSORS
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