Ice-O-Matic MFI 2406LS Service Manual
SERVICE AND INSTALLATION MANUAL
MFI 2406LS Series
Ice-O-Matic
11100 East 45th Ave
Denver, Colorado 80239
Part Number 9081358-02 17-3168-02 Date 10/08
SERVICE PARTS MANUAL
22 INCH WIDE ICE SERIES CUBERS
MODEL-ICE0320, ICE0520
Includes 50Hz. Units
ICE-O-Matic
11100 East 45th Ave
Denver, Colorado 80239
Part Number 9081297-01 PD04/02 Rev1/05
TO THE OWNER OR USER:
MFI2406LS
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.
Table of Contents
FOR THE INSTALLER: Specifications ······························ Page 2
FOR THE INSTALLER ······································ Page 3
FOR THE ELECTRICIAN ····································· Page 4
FOR THE PLUMBER ······································· Page 5
FOR THE INSTALLER: Final Check List ····························· Page 6
INITIAL START UP ········································ Page 7
COMPONENT IDENTIFICATION ································ Page 8
COMPONENT DESCRIPTION: Evaporator ··························· Page 9
CONTROL BOX: Components ·································· Page 10
ELECTRICAL SEQUENCE ···································· Page 11
OPERATION ··········································· Page 12
OPERATION: Refrigeration ··································· Page 13
The is the freezer portion of a commercial ice
machine. It is designed to be connected to the
condensing section of a refrigeration system,
specifically a supermarket system.
CLEANING and SANITATION ·································· Page 14
SENSOR MAINTENANCE ···································· Page 15
BEARING MAINTENANCE ···································· Page 16
AUGER MAINTENANCE ····································· Page 17
SERVICE DIAGNOSIS ······································ Page 18
SERVICE DIAGNOSIS ······································ Page 19
CONTROL SYSTEM DIAGNOSTICS ······························ Page 20
REMOVAL AND REPLACEMENT ································ Page 21
REMOVAL AND REPLACEMENT: Bearing And Breaker ···················· Page 22
REMOVAL AND REPLACEMENT ································ Page 23
REMOVAL AND REPLACEMENT ································ Page 24
REMOVAL AND REPLACEMENT: Evaporator ·························· Page 25
REMOVAL AND REPLACEMENT: Gearmotor ·························· Page 26
WIRING DIAGRAM ········································ Page 27
This manual was printed on recycled paper, keep it
for future reference.
Note the Warning symbol where it appears. It
marks a potential hazard.
Page 1
MFI2406LS
FOR THE INSTALLER: Specifications
BACK VIEW
15.53"
20.84"
9.43"
5.25"
3"
17.8"
18.8"
21.66"
The machine is designed to fit a B100 Ice-O-Matic
storage bin with a KBT-26.
Installation Limitations: The machine is designed
for indoor installations only.
Minimum Maximum
o
Air Temp 50
Water Temp 40
F 100oF
o
F 100oF
Voltage 198 VAC 253 VAC
Water Pressure 20 psi 80 psi
RO Water Limitation: Water conductivity must be
no less than 35 microSiemens/cm.
SPECIFICATIONS:
3.1"
7
SUCTION LINE CONNECTION
LIQUID LINE CONNECTION
POTABLE WATER INLET 3/8" FLARE
DRAIN 3/4" FPT
"
8
1
"
2
ELECTRICAL INLET
Ice-O-Matic ice machines are designed and
manufactured with the highest regard for safety
and performance. They meet or exceed the
standards of U.L., N.S.F., and C.U.L.
Ice-O-Matic assumes no liability or responsibility of
any kind for products manufactured by Ice-O-Matic
that have been altered in any way, including the
use of any parts and/or other components not
specifically approved by Ice-O-matic.
Ice-O-Matic reserves the right to make design
changes and/or improvements at any time.
Specifications and designs are subject to change
without notice.
Model Cabinet Size System Refrigerant BTUH required* Voltage Ice Type
MFI2406RL 42"w x 27"h x 24"d R-404A 12,000 208-230/60/1 Flake
*Used to determine needed condensing unit
capacity. Not an AC load
Page 2
FOR THE INSTALLER
MFI2406LS
Select the Location:
The unit can only be installed indoors within the
limitations described on page 2.
The ice machine will have to be connected to the
building’s R-404A refrigeration system, check to be
sure that the system has AT LEAST enough extra
capacity to handle the BTUs (from table on page 2)
per hour @ 110
0
F. evaporator temperature).
a0
Storage Bin:
Ice-O-Matic’s B100 will be the presumed bin of
choice. Install the legs and place the bin into
position.
A KBT26 bin adapter kit is required, follow
installation instructions included in the kit.
The ice 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.
Level the assembly by turning the leg levelers in
or out.
0
F. liquid line temperature (assume
Refrigeration Installation:
The skills of a refrigeration technician are required
to connect the ice machine to the building’s
refrigeration system.
Notes:
Suction Line and Liquid Line Stubs are at the
·
back of the cabinet.
R-404A models: 1.5 ounces of R-404A
·
refrigerant is in the system as a holding charge.
Be sure there is enough BTU capacity.
·
Be sure the liquid connection is NOT in series
·
with another liquid line valve.
Local Codes must be observed.
·
A P-trap should be installed where there will be
·
more than 10’ of vertical rise in the suction line.
Locate the Nameplate: The nameplate is located
on the back panel of the machine, and contains the
electrical characteristics particular to the unit being
installed.
Page 3
MFI2406LS
FOR THE ELECTRICIAN
CONFORM TO ALL APPLICABLE CODES
Electrical Connections:
Locate the nameplate for the current
requirements, and then determine the
wire size and type per the National
Electric Code. The machine requires a
solid chassis to earth ground wire.
Refer to the wiring diagram. The ice
machine should be connected to it’s
own electrical circuit, and be
individually fused.
Voltage, when the unit is under full
load, must remain within the limitations
listed on page 2.
LOW VOLTAGE CAN CAUSE
EQUIPMENT MALFUNCTION AND/OR
DAMAGE
All external wiring should conform to
the National, State, and local electrical
codes. Usually the services of a
licensed electrician will be required.
DETAIL OF
JUNCTION BOX
JUNCTION
BOX
POWER SUPPLY
Page 4
FOR THE PLUMBER
CONFORM TO ALL APPLICABLE CODES
MFI2406LS
Water Supply:
The recommended water supply line is 3/8" O.D.
copper tubing, with a minimum operation pressure
of 20 PSIG, and a maximum of 80 PSIG. Connect
to cold water using the male flare connection at the
back of the machine. Install a shut off valve in an
accessible space between the ice maker and the
water supply.
SHUT OFF
VALVE
Drain System:
All drains are of the gravity type, and must have a
minimum of 1/4" fall per foot of horizontal run. The
drains must be installed to conform to local
plumbing codes. The use of a vent at the machine
and at the bin will allow the system to drain
properly. Use only rigid tubing for drains; insulation
of the bin drain is recommended.
3/8" MALE FLARE
3/4" FPT
VENT THIS DRAIN
WATER INLET
BIN DRAIN
FLOOR DRAIN
FIELD
SUPPLIED
WATER FILTER
Page 5
MFI2406LS
FOR THE INSTALLER: Final Check List
1. Is the unit installed where the air and water
temperatures are within and will remain within the
limitations for the unit?
2. Is there 6" clearance at the rear of the machine
for utility connections?
3. Has the water supply line be checked for
pressures between 20 and 80?
4. Has the unit been leveled?
5. Has the shipping material been removed from
inside the cabinet?
6. Have the electrical connections been made?
7. Have the drains been installed and checked for
leaks?
8. Has the refrigeration supply been installed and
checked for leaks?
9. Has the bin and cabinet been wiped clean or
sanitized?
10. Has the warranty registration card been
properly filled out and mailed to Ice-O-Matic?
11. Has the owner been given the service manual
and been instructed on how to maintain the ice
maker?
13. Has the owner been given the name and
telephone number of the local Ice-O-Matic service
agency?
Page 6
INITIAL START UP
MFI2406LS
1. Remove the top and front panels.
2. Open the water valve, and observe that the two
float reservoirs fill up with water and shut off.
3. Switch on the electrical power.
4. Open the hand valves (in the liquid lines).
5. Open the ball valves (in the suction lines).
6. Switch on one master (mode) switch, and
observe:
That liquid line valve opens
·
The gearmotor runs
·
Within a short time, that side of the machine
·
begins to make ice.
Water flows from the water reservoir, and the
·
float drops, letting in more water.
7. Switch on the other master (mode) switch,
observe that:
The liquid line valve opens
·
The gearmotor runs
·
Within a short time, that side of the machine
·
begins to make ice.
Water flows from the water reservoir, and the
·
float drops, letting in more water.
8. With both sides operating, the sight glass should
remain full, and the low side pressure will be about
36 PSIG, + or - 2
Gearmotor amp draw should not exceed the
nameplate rating.
9. Check the system very carefully for any
refrigerant leaks, repair as needed.
Page 7
Loading...