Scotsman FME800R Operator’s Manual

INTRODUCTION
FME800R
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 FME800R is a remote condenser modular ice system that fits a variety of Scotsman 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 HP62 as the refrigerant.
Table of Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
FOR THE INSTALLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
REMOTE CONDENSER SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
FOR THE INSTALLER: Remote Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
FOR THE PLUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
FOR THE ELECTRICIAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
FOR THE INSTALLER: Completed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
START UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
COMPONENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
ELECTRICAL SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
OPERATION: Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
OPERATION: Refrigeration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CLEANING & SANITIZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
MAINTENANCE AND CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
OPERATING CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SERVICE DIAGNOSIS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
REMOVAL AND REPLACEMENT: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
REFRIGERATION SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
CIRCUIT BOARD TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Parts Lists and Wiring Diagrams are located 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.
August 1993
Page 1
It is an alert for important safety
information on a potential hazard.
FME800R
FOR THE INSTALLER
These machines are designed to fit the following Scotsman storage bins:
••BH550 using bin top KBT14 or KBT20
••B90 with bin top KBT18.
••BH800 using bin top KBT15 (one unit).
••BH800 if using two units, no bin top needed.
••BH900 using 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
••All kits, legs, and information required for the
specific job.
SPECIFICATIONS: ICEMAKER
Model Dimensions
W" x D" x H"
FME800RE-1A 21" x 24" x 27" 115/60/1 FLAKE HP62 208 ounces 22.5 35 * Minimum Circuit Ampacity is used to determine wire size and type per National Electric Code. The Standard Finish is Enamel - Sandalwood. There is an optional stainless steel panel kit, SPKFM21 available to convert the unit to Stainless Steel. It is field installed.
Basic Electrical
Ice Type Refrigerant
Type
June 1994
Page 2
Refrigerant Charge
Max. Fuse Size
Min.. Circuit Ampacity
FOR THE INSTALLER
FME800R
Installation Limitations:
This ice system is designed to be installed indoors, in a controlled environment:
Min. Max.
0
Air Temperature 50 (Not including the remote condenser) Water Temperature 40 Water Pressure 20 PSIG 80 PSIG 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 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.
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.
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19 7⁄8"
ERC DIMENSIONS
Model A B F G ERC101
33 3⁄8" 10 3⁄4" 16 3⁄4" 11 5⁄8"
FME800R
REMOTE CONDENSER SPECIFICATIONS
23 13⁄16"
Model Use with Basic Electrical RCE501-1 1 FME800R 115/60/1 ERC101-1 SAME 115/60/1
RTE25 Precharged line set, 25’, R-404A RTE40. Precharged line set, 40’, R-404A
ICEMAKER NAMEPLATE
LOCATED ON BACK PANEL
SERIAL PLATE LOCAT ED
BEHIND FRONT PANEL
December 1995
Page 4
FOR THE INSTALLER: Remote Condenser
REMOTE CONDENSER
SPIRAL
EXCESS
TUBING
INSIDE
BUILDING
FME800R
Location
Limited to a 40 foot or a 25 foot length of precharged refrigerant tubing connecting the icemaker to the remote condenser. The condenser must be above or level with the icemaker.
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 icemaker, using the junction box at the back of the icemaker.
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.
///////////////////////////////////////////////////////////////////////////////
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.
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.
LOCATE REMOTE
CONDENSER
ABOVE ICEMAKER
August 1993
Page 5
FME800R
FOR THE INSTALLER: Coupling Instructions
////////////////////////////////CAUTION//////////////////////////////// The couplings on the sets of precharged lines are
self sealing when installed properly. Carefully follow the 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.
••The 1/2 inch discharge line (schrader valve
end) goes to the remote condenser fitting marked "discharge line"
••The 3/8 inch liquid line (schrader valve end)
goes to the remote condenser fitting marked "liquid line".
••The 1/2 inch discharge line connects to the
icemaker fitting marked "discharge line".
••The 3/8 inch liquid line connects to the
icemaker fitting marked "liquid line."
Final Connections
3. Begin tightening the couplings together by hand, then using two wrenches (it is important that ONLY the nut on the precharged lines be turned, the other parts of the couplings must NOT be allowed to turn or the process will tear out the diaphragms and they will be loose in the refrigeration system) tighten the coupling until it bottoms out or a definite increase in resistance is felt.
4. 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 nut turns, the line will show when 1/4 turn is made.
5. After all connections are made, and after the king valve has been opened, check the couplings for leaks.
Note: The system charge is contained in the receiver tank of the ice machine. Only "holding" charges are present in the "pre-charged" tubing or the condenser.
The RCE501-1A is a single circuit, 115 volt, 1 ton condenser.
SERVICE PORTS
REMOTE CONDENSER
3/8" LIQUID LINE
1/2" DISCHARGE
LINE
SCHRADER
VALVE
TO REMOTE
CONDENSER
NO SCHRADER
VALVE
TO ICEMAKER
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FOR THE INSTALLER: Location
ICEMAKER
TYPICAL INSTALLATION
EXCESS
PRECHARGED
TUBING INSIDE
BUILDING
FME800R
REMOTE
CONDENSER
ROOF
CUTAWAY
SERVICE
ACCESS
SERVICE ACCESS
SIDE AND BACK
WALL
CUTAWAY
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FIELD
SUPPLIED
WATER FILTER
FME800R
FOR THE PLUMBER
CONFORM TO ALL APPLICABLE CODES
Water Inlet
HAND SHUT
OFF VALVE
CONNECT TO
COLD WATER
WATER INLET
3/8" MALE
FLARE
VENT
ICEMAKER
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 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.
Storage Bin: A separate gravity type drain needs to be run. Insulation of this drain line is recommended.
VENT BIN DRAIN
3/4" FPT
FLOOR DRAIN
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Page 8
FOR THE ELECTRICIAN
CONFORM TO ALL APPLICABLE CODES
FME800R
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.
Electrically the remote condenser fan motor is connected to the icemaker at the contactor
TERMINAL STRIP
FOR REMOTE
CONDENSER
ICEMAKER
JUNCTION BOX
terminals for the compressor and the fan motor operates whenever the compressor operates.
Electrical connections are made at the junction box at the back of the icemaker and at the junction box on the remote condenser.
The remote condenser must be wired to the icemaker 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
August 1993
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INSULATED PRECHARGED REFRIGERANT
TUBING
FME800R
FOR THE INSTALLER: Completed Installation
A typical installation should generally appear as illustrated below. The remote condenser must be located above the icemaker and the precharged lines installed per the instructions on page 6.
ROOF
CUT-AWAY
June 1994
Page 10
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 rear, left, and right 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. If two units on one condenser, has the relay kit been installed?
9. Is there a water shut off valve installed near the machine?
10. Is the remote condenser installed per local building codes, and in a place where it has adequate ventilation and minimal solar heat gain?
11. Has all shipping material and literature (inside the front panel) been removed from the units?
12. Have the remote condenser and precharged lines been properly installed?
13. Has the electrical connection between the icemaker and the condenser been made?
14. Verify that the master switch is in the OFF position.
REMOTE
CONDENSER
SECURED?
PLUMBING?
15. Switch on the electrical power.
16. Refer to Pre-Start instructions, the next page.
FME800R
ROOF
HOLES
SEALED?
POWER
SUPPLY?
LEVELED?
August 1993
Page 11
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