Scotsman FME804R Owner’s Manual
INTRODUCTION
NME654R & FME804R
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 FME804R and NME654R are a remote
condenser modular ice systems that fit a variety of
Table of Contents
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 2
FOR THE INSTALLER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 3
REMOTE CONDENSER SPECIFICATIONS · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 4
Remote Condenser Location · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 5
FOR THE INSTALLER: Remote Condenser · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 6
FOR THE INSTALLER: Coupling Instructions · · · · · · · · · · · · · · · · · · · · · · · · · · Page 7
FOR THE INSTALLER: Location · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 8
FOR THE PLUMBER · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 9
FOR THE ELECTRICIAN · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 10
FOR THE INSTALLER: Completed Installation · · · · · · · · · · · · · · · · · · · · · · · · · · Page 11
FOR THE INSTALLER: Final Check List · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 12
START UP · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 13
COMPONENT DESCRIPTION · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 14
COMPONENT DESCRIPTION: Control Box · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 15
ELECTRICAL SEQUENCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 16
OPERATION: Water · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 17
OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 18
OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 19
OPERATION: Refrigeration · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 20
CLEANING & SANITIZING · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 21
SENSOR MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 22
BEARING MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 23
AUGER AND OTHER MAINTENANCE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 24
OPERATING CHARACTERISTICS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 25
SERVICE DIAGNOSIS: · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 26
SERVICE DIAGNOSIS: · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 27
CONTROL SYSTEM DIAGNOSTICS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 28
REMOVAL AND REPLACEMENT: Water Reservoir & Bin Controls · · · · · · · · · · · · · · · Page 29
REMOVAL AND REPLACEMENT: Bearing And Breaker · · · · · · · · · · · · · · · · · · · · Page 30
REMOVAL AND REPLACEMENT: Auger · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 31
REMOVAL AND REPLACEMENT: Water Seal · · · · · · · · · · · · · · · · · · · · · · · · · · Page 32
REMOVAL AND REPLACEMENT: Evaporator · · · · · · · · · · · · · · · · · · · · · · · · · · Page 33
REMOVAL AND REPLACEMENT: Gearmotor Assembly · · · · · · · · · · · · · · · · · · · · Page 34
REFRIGERATION SERVICE · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Page 35
Scotsman storage bins. Their features include:
front service for the freezer, gearmotor, control
box, water reservoir, and bin control; an electronic
control (AutoSentry) for monitoring ice and water
level; a thermostatic expansion valve; and HP62 as
the refrigerant.
January 2000
Page 1
Note this symbol when it appears.
It is an alert for important safety
information on a potential hazard.
NME654R & FME804R
FOR THE INSTALLER
These machines are designed to fit the
following Scotsman storage bins:
SB480 and extensions (with bin top
·
KBT18)
HTB555 or BH550 using bin top
·
KBT14 or KBT20
BH800 using bin top KBT15 (one
·
unit) or KBT25 (two units).
BH801 using bin top KBT28
·
BH900 using bin top KBT24
·
NME654 Dispenser Applications
The NME654 can be placed on and
used with certain ice and ice-beverage
dispensers. Kits are required for proper
operation, see the following list:
ID150, use adapter KBT42 and
·
KNUGDIV
ID200 or ID250, use adapter KBT46
·
and KDIL-N-ID2
Cornelius ED/DF200 beverage
·
dispensers, use KBT46 and
KDIL-N-200
·
Cornelius ED/DF250 beverage
dispensers, use KBT46 and
KDIL-N-250
·
Lancer nugget ice & beverage
dispenser, use KDIL-N-L and Lancer
kit #82-3491.
SPECIFICATIONS: ICE MACHINE
Model Dimensions
W"xD"xH"
FME804RS-1A 21" x 24" x 27" 115/60/1 FLAKE R-404A 208 ounces 22.5 30
NME654RS-1A same same Nugget R-404A same same same
* Minimum Circuit Ampacity is used to determine wire size and type per National Electric Code.
Basic
Electrical
Ice Type Refrigerant
Type
May 2006
Page 2
Refrigerant
Charge
Min Circuit
Ampacity
Max Fuse
Size
FOR THE INSTALLER
NME654R & FME804R
Installation Limitations:
This ice system is designed to be installed indoors,
in a controlled environment:
Min. Max.
Air Temperature 50
(Not including the remote condenser)
Water Temperature 40
Water Pressure (psi) 20 80
Voltage -5% +10%
(Compared to the nameplate)
Operating the machine outside of the limitations is
misuse and can void the warranty.
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 CUL.
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.
0
F 1000F
0
F 1000F
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, usually a
minimum of 6 inches. Try to avoid hot, dirty and
crowded locations. Be sure that the location for the
machine is within the limitations described.
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.
Install the bin top according to the directions with
the bin top.
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.
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.
Note: Be sure to allow a 6" minimum space
above the top of the machine for service.
January 2000
Page 3
NME654R & FME804R
)
REMOTE CONDENSER SPECIFICATIONS
2.00
5.08
ERC DIMENSIONS
Model A B F G
ERC101 33
19.75
50.17
3
"10
8
3
"16
4
3
"11
4
5
"
8
2.75
14.53
Air Discharge
Air Intake
Liquid Line
.38 Quick Connect Fitting
.95
Adjustable Roof Clearance
12.00 18.00 24.00
30.48 45.72 60.95
Discharge Line
.50 Quick Connect Fitting
1.27
13
23
16
7
2.07
19
8
"
"
.53
1.35
(6
Model Use with Basic Electrical
ERC101-1 1 FME804R or 1 NME654R 115/60/1
January 2000
Page 4
RTE25 Precharged line set, 25’, R-404A
RTE40. Precharged line set, 40’, R-404A
ICEMAKER NAMEPLATE
LOCATED ON BACK PANEL
SERIAL PLATE LOCATED
Remote Condenser Location
NME654R & FME804R
Use the following for planning the placement of
the condenser relative to the ice machine
Location Limits - condenser location must not
exceed ANY of the following limits:
Maximum rise from the ice machine to the
·
condenser is 35 physical feet
Maximum drop from the ice machine to the
·
condenser is 15 physical feet
Physical line set maximum length is 100 feet.
·
Calculated line set length maximum is 150.
·
Calculation Formula:
Drop = dd x 6.6 (dd = distance in feet)
·
Rise = rd x 1.7 (rd = distance in feet)
·
Horizontal Run = hd x 1 (hd = distance in feet)
·
Calculation: Drop(s) + Rise(s) + Horizontal Run
·
= dd+rd+hd = Calculated Line Length
Configurations that do NOT meet these
requirements must receive prior written
authorization from Scotsman.
Do NOT:
Route a line set that rises, then falls, then rises.
·
Route a line set that falls, then rises, then falls.
·
Calculation Example 1:
The condenser is to be located 5 feet below the ice
machine and then 20 feet away horizontally.
5 feet x 6.6 = 33. 33 + 20 = 53. This location would
be acceptable
Calculation Example 2:
The condenser is to be located 35 feet above and
then 100 feet away horizontally.
35 x 1.7 = 59.5. 59.5 +100 = 159.5. 159.5 is
greater than the 150 maximum and is NOT
acceptable.
rd
22.87"
dd
17.15"
Remote
Condenser
Located ABOVE
Ice Machine
Remote
Condenser
Located BELOW
Ice Machine
40.35"
hd
Condenser Distance and
Location Schematic
January 2000
Page 5
NME654R & FME804R
FOR THE INSTALLER: Remote Condenser
Location
Limited to a 40 foot or a 25 foot length of
precharged refrigerant tubing connecting the ice
machine to the remote condenser. The condenser
must be above or level with the ice machine.
Select the best available location, protecting the
condenser from extremes of dirt, dust, and sun.
Meet all applicable building codes. Usually the
services of a licensed electrician are required.
Roof Attachment
1. Install and attach the remote condenser 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.
2. Have an electrician connect the remote
condenser fan motor to the ice machine, using the
junction box at the back of the ice machine.
PRECHARGED LINE ROUTING
CAUTION
Do not connect precharged tubing until all routing
and forming of the tubing is complete. See the
coupling instructions for connecting information.
4. Spiral the excess length of pre charged tubing
inside the building. Use a horizontal spiral (need
not be as tight as illustrated) to avoid any traps in
the lines.
5. Have the roofing contractor seal the holes in the
roof per local codes.
CAUTION
The couplings on the sets of precharged lines are
self sealing when installed properly. Carefully
follow the instructions:
REMOTE CONDENSER
1. Each set of precharged refrigerant lines (either
25 foot or 40 foot) consists of a 3/8 inch diameter
liquid line and a 1/2 inch diameter discharge line.
Both ends of each line have quick connect
couplings, one end has a schrader valve
connection, that end goes to the condenser.
Note: The openings in the building ceiling or wall,
listed in the next step, are the minimum sizes
recommended for passing the refrigerant lines
through.
2. Have the roofing contractor cut a minimum hole
for the refrigerant lines of 1 3/4 inch. Check local
codes, a separate hole may be required for the
electrical power to the condenser.
CAUTION
DO NOT KINK OR CRIMP REFRIGERANT
TUBING WHEN INSTALLING IT.
3. Route the refrigerant lines through the roof
opening.
Follow straight line routing whenever possible.
Any excess tubing MUST be retained within the
building.
SPIRAL
EXCESS
TUBING
INSIDE
BUILDING
LOCATE REMOTE
CONDENSER ABOVE
ICEMAKER
January 2000
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NME654R & FME804R
FOR THE INSTALLER: Coupling Instructions
Initial Connections:
1. Remove the protector caps and plugs. Wipe the
seats and threaded surfaces with a clean cloth to
be certain that no foreign matter remains on them.
2. Lubricate the inside of the couplings, especially
the O-Rings with refrigerant oil.
3. Position the fittings on the correct connections
on the condenser and ice machine.
It is CRITICAL that ONLY the NUT on the
pre-charged tube be turned or the diaphragms will
be torn loose by the piercing knives and be loose
in the refrigeration system causing severe
operational problems.
Note: As the coupling is tightened, the diaphragms
in the quick connect couplings will begin to be
pierced. As that happens, there will be increased
Clean and Lubricate Couplings
The ½ inch discharge line (schrader valve end)
·
goes to the remote condenser fitting marked
“discharge line.”
3
·
The
to the remote condenser fitting marked “liquid
line.”
·
The ½ inch discharge line goes to the ice
maker fitting marked “discharge line.”
·
The
fitting marked “liquid line.”
Final Connections:
4a. Begin by tightening the couplings together by
hand. Continue to turn the swivel nuts by hand until
is is certain that the threads are properly engaged.
4b. Using two wrenches, one to rotate the swivel
nut and one to hold the tubing, tighten each
coupling.
SCHRADER
inch liquid line (schrader valve end) goes
8
3
inch liquid line goes to the ice maker
8
NO SCHRADER
Tighten Swivel Nut
resistance to tightening the swivel nut.
4c. Continue tightening the swivel nut until it
bottoms out or a very definite increase in
resistance is felt (no threads should be showing).
Do NOT overtighten.
5. Using a marker or pen, mark a line lengthwise
from the coupling union nut to the bulkhead. Then
tighten the coupling and additional 1/4 turn. As the
Rotate Swivel Nut ¼ Turn More
nut turns, the line will show when 1/4 turn is made.
6. After all connections are made, and after the
king valve has been opened (do not open at this
time), check the couplings for leaks.
TO REMOTE
TO ICEMAKER
January 2000
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NME654R & FME804R
FOR THE INSTALLER: Location
TYPICAL INSTALLATION
EXCESS
PRECHARGED
TUBING INSIDE
BUILDING
REMOTE
CONDENSER
CUTAWAY
Ice Machine
ROOF
SERVICE
ACCESS
SERVICE ACCESS
SIDE AND BACK
WALL
CUTAWAY
January 2000
Page 8
FOR THE PLUMBER
CONFORM TO ALL APPLICABLE CODES
NME654R & FME804R
Water Inlet
FIELD SUPPLIED
WATER FILTER
HAND SHUT
OFF VALVE
CONNECT TO
COLD WATER
WATER INLET
3/8" MALE
VENT ICE
MACHINE
DRAIN, 3/4"
FPT
The recommended water supply is
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.
Drains
There is one ¾ " FPT drain at the
back of the cabinet, the drain line is of
the gravity type, and ¼ 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 ¾ " rigid tubing.
Storage Bin: Install a separate
gravity type drain. Insulation of this
drain line is recommended.
VENT BIN DRAIN
3/4" FPT
FLOOR DRAIN
January 2000
Page 9
NME654R & FME804R
FOR THE ELECTRICIAN
CONFORM TO ALL APPLICABLE CODES
Connect the electrical power to the unit to the wires
in 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.
Connect the ice machine to its own electrical circuit
so it is individually fused. Voltage variation must
remain within design limitations, even under
starting conditions.
TERMINAL STRIP
FOR REMOTE
CONDENSER
ICE MACHINE
JUNCTION BOX
There is a separate junction box for the remote
condenser fan motor.
Install an interconnecting wire between the remote
condenser and the junction box at the back of the
ice machine.
The remote condenser must be wired to the ice
machine in accordance with local and national
electrical codes with a minimum of 18 Awg. wire
with an ground bonding wire connected to the
ground screws provided in both the condenser and
machine field wiring boxes. All outdoor wiring must
be in rainproof conduit.
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.
GROUND
THE
CHASSIS
POWER
SUPPLY
RAIN PROOF
CONDUIT
January 2000
Page 10
NME654R & FME804R
FOR THE INSTALLER: Completed Installation
A typical installation should generally appear as
illustrated below. The remote condenser must be
located above the ice machine and the precharged
lines installed per the instructions on page 6.
ROOF
CUT-AWAY
INSULATED
PRECHARGED
REFRIGERANT
TUBING
January 2000
Page 11
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