Scotsman MF400 Operator’s Manual
MF400
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, cle an ,
maintain, and service this ice system.
TABLE OF CONTENTS
For the Installer
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2
Location/Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
For the Plumber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
For the Electrician . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8
Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
Electrical Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 10
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
Maintenance & Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 15
Removal and Replacement
Ice Breaker and Auger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17
Water Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17
Gearmotor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 18
Parts lists and wiring diagrams are locat ed
in the center of this manual, printed on
yellow paper.
May, 1991
Page 1
Drain 7/16" I.D.
Hose
12.7
11.4
Minimum
Circuit
Ampacity+
MF400
FOR THE INSTALLER
The MF400 is desig n ed to fit th e fo llowin g
Scotsman storage bins.
BH550 with bin top KBT20
HTB500 with bin top KBT2 0
The normal fin ish for th e mach in e is enamel
sandalwo o d. An op tio n al st ain le ss steel pan el kit
(SPKMF40 0A ) may be ord e red an d field installed
to convert the unit to a sta inless steel finish.
When installing the new system, check that
everythin g nee de d is on site :
Correct Ice Ma ch ine (v olt a ge
and type)
Correct Bin
Correct Bin Top
Legs for the bin
1 -7/16"
SPECIFICA TIONS :
21"
Condenser Drain 3/8"
O.D. Tube (Water Cooled)
Condenser Inlet, 3/8" O.D.
Tube (Water Cooled)
ICEMAKER
Electrical
Note: This servic e manua l is
for the current MF400 "B"
model, but applies in general
to the prior "A" model. The
primary differe nc es are in
the evaporator, spout and
the ice chute.
Model
Number
MF400AE-1B
MF400WE-1B
Dimensions
(w/o Bin)
H" x W" x D"
21.5 x 21 x 22
Inlet
same
2.5"
Basic
Electrical
115/60/1
same
8"
9.5"
Condenser
Type
Water
Air
Water Inlet
1/4" Male Flare
3.5"
2"
Maximum
Fuse Size
15
15
*Minimum Circuit Ampa cit y is used to dete rmine
wire size and typ e pe r Na tio n al Ele ct ric Co d e.
May, 1991
Page 2
FOR THE INSTALLER
MF400
Installation Limitations:
This ice system is designed to be installed indoors,
in a controlled environment:
Min Max
Air Temperatu re 500F. 1000F.
Water Temperature 40
Water Pre ssure 20 psi 80 psi
Voltage -10% +10%
(Compared to the Na mep la te )
Operating the machine outside of the limitations is
misuse and can void the warranty.
Scotsman Ice Systems are designed and
manufac tu red with the h igh e st rega rd for sa fe ty
and performance. They meed or exceed the
standards of UL, NSF, and CSA.
Scotsman assu me s no liability or respo ns ibilit y of
any kind for products manufactured by Scot sm an
that have been altered in any way, including the
use of any part and/or other components not
specifically approved by
Scotsman.
Scotsman res erves th e r ight
to make design changes
and/or impro vements at any
time. Specifications and
design changes are subject to
change without notice.
0
F. 1000F.
Water Limitations:
An ice machine is a food manufacturing plant; it
takes in a raw mat eria l, wa te r, and tu rns it in to a
food product, ice. The purity of the water is very
important in obtainin g pure ice and in maximizin g
product life . This se ctio n is not int e nde d as a
complete resource for water questions, but it does
offer these ge nera l reco mmendatio n s:
1. Filter the wat er u sed to make ice. That is the
water going to the “potable” water connection.
Water filters vary gre a tly in ability a nd fu n ctio n .
Install one that filters out suspended solids to a
dimension of 5 microns or smaller. The finer the
filter the bette r, but fin e r filte rs will clog soon er tha t
course ones. It may be necessary to add a course
filter ahead of the fine filter to prolong filter life.
2. Check with a water treat men t spe cia list for a
water test, and recommendations regarding filters
and t r eatm ent .
Service Limitations:
There must be space above,
to at least one side, to the
back, and of course the front
for service access.
May, 1991
Page 3
ASSEMBLED VIEW
ICE CHUTE
ICE CHUTE INSTALLATION
MF400
FOR THE INSTALLER
Location
After uncrating and inspection, the unit is ready to
be installed.
It is important that the machine be installed in a
location where it has enough space around it for
service, and a minimum o f 6" be allo we d all sides
for air circulation. The machine, when air cooled,
draws air in the front, and exhausts it out the sides
and back.
Try to avoid hot, dirty and crowded locations. Be
sure that the location for the machine is within the
limitations described on page 3.
Storage Bin
Tip the uncrated storage bin on its back, using
parts of the carton to protect the exterior finish.
Install t he legs into th e th re ad ed ho les in th e
bottom of th e bin. Turn the leg levelers all the
way in preparatio n fo r le veling lat e r.
Return the bin to the upright position, remove
paper covering the bin gasket.
Install bin top if required.
Note: Do no t push bin int o position: but lif t it
there. Push ing a bin, espe cia lly 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
mechanica l lif t is recommended fo r lif ting the
machine high eno ugh to install on top of the bin.
After the machine is placed on the bin, line it up
so that the ice discharge opening in the base of
the machine is over the open hole in the bin top.
Ice Chute Installation
After the MF400B has been installed on the ice
storag e bin, th e ice chut e n eed s to be inst a lled :
1. With the top panel of f, remo ve all pa ckin g
material (bub ble p ac k) from ab ove the ice chut e
and chute cap. Cut the ty-wrap holding the chute
assembly in place.
2. Remove the insula tio n halve s and ty-wrap
packed inside the cabinet, retain for later use.
3. Remove th e cardboa rd su p port fro m un d er th e
ice chute.
4. Insert the ice chute/bin thermostat assembly into
the large hole in the bottom of the ice machine.
Check that bin thermostat cap tube is free from
contact wit h most components.
5. Remove the rubb er ca p from th e to p of th e ice
chute. L eave one hose clamp on th e chu te .
6. Push the ice chute against the stainless spout
(the end of the spou t will go into th e chute ).
7. Slide the rub b er ca p ove r the to p of the sta inle ss
spout. Push do wn until it fit s tig h tly a round the
spout.
8. Secure the rubber cap to the spout with the two
hose clamps, in the molded grooves; one above
and one below. Keep hose clamp screws away
from evaporator.
9. Attach the insulation halves around the top of
the evapor ator. Secure with the ty-wrap provided.
Finish installation per service manual.
MOLDED
GROVES
RUBBER
CAP
HOSE CLAMP
RUBBER CAP
HOSE CLAMP
METAL ICE
SPOUT
HOSE
CLAMP
METAL SPOUT
HOSE CLAMP
May, 1991
Page 4
FOR THE PLUMBER
CONFORM TO ALL APPLICABLE CODES
Water Inlet
Air Cooled: The reco mme n ded wat er su pply is co ld
water. Use
1
⁄4" male flare a t the back of the ca binet. Install a
hand valve near the machine to control the water
supply.
Water Cooled: A separa te
should be connected to the condenser inlet, with a
separa te ha n d valve to c ont ro l it.
Drai n s
Air cooled: There is one 7⁄16" I.D.
hose to co nne ct to fo r a dra in. This
drain is a gravity drain, and a
minimum of 1⁄4" per foot fall is need ed
for horizontal portions of t he drain
line.
The ideal drain receptacle is a
trapped and vented floor drain.
Use only rigid tubing.
Water Cooled Models: In addition
to the above mentioned drain,
separate condenser drain must be
install e d . Connect to the
condenser drain tube.
Storage Bin: A separate gravi ty ty pe
drain needs to be run. This drain line
should be insulated.
1
⁄4" O.D. copper tubing, connect to the
3
⁄8" O.D. copper tube
CONDENSER
WATER INL ET
(Water Cooled)
3
⁄8"
MF400
OVERFLOW
DRAIN
POTABLE WAT ER
INLET
WATER FILTER
(FIELD SUPPLIED)
CONDENSER DRAIN
(Water Cooled)
BIN DRAIN
FLOOR
DRAIN GRIL L
May, 1991
Page 5
MF400
FOR THE ELECTRICIAN
CONFORM TO ALL APPLICABLE CODES
The electrica l po we r to the unit is t o be wired
through the cabinet to the control box. In the
control box, connect to the t erminal strip provided.
Check the nameplate (located on the back of the
cabine t ) fo r th e vo lta g e requ irements, and for the
minimum circuit ampa cit y. The mach in e requ ires a
solid chassis to eart h ground wire.
The icemaker should be connected to it’s own
electrica l ci rcuit so tha t it is ind ivid u ally f u se d.
Voltage variation must remain within design
limitations, even under starting conditions.
All external wiring mus t co nfo rm to nat ion a l, st at e,
and local electrical co des. The use of e licensed
electrician is req uired to perf o rm the ele ct rical
installa tion.
ELECTRICAL POWER
SUPPLY
CONNECT ELECTRICAL
POWER TO ICEMAKER
THROUGH ELECTRICAL
INLET HOLE AND INTO
CONTRO L BOX
May, 1991
Page 6
Loading...