Coldelite UF-253G Operation manual

Soft Serve Freezer
OPERATION and SERVICE
MANUAL
COLDELITE CORPORATION OF AMERICA
3760 INDUSTRIAL DR. WINSTON-SALEM, N.C. 27105 TEL [phone] FAX [phone]
543260

Page
PART I .
PART- I I
PART I11
PART IV
PART V
PART VI
A) L!ni i at lny
B) l'osit ioninq the Machine
C) Machines wlth Water Cooled Condensers
Kater Va lvc Adjustment
\<AHSING
D) Msct~ines with Air Cooled Condensers
El Electrical. Connections
Electrical Requirements
Beater Kvtatlon
IYI:(?HTAN'I' - WARSING INFORMATION
EXI-'L.ANA'I'IOX Of.' ELECTRICAL CONTROLS
- -- ----.- --
A) Conrrol Panel
B) Oth~>r Controls
Asst2rnb 1 ing the Freezer 8, 9, 9a
SANIT 1 Z I I:(; THE FREEZER
.-.- 10, 10a
Routine, Periodic Cleaning Procedures 13
START1 NG TtiE FREEZER
GENERAL INFORMATION
Gravity Feed-Valveand How to Operate
12
:low to Adjust the Gravity Feed Valve 12
TEChS1CF.-L DATA 14
A) Rcfr-igcrztion - Compressor, Beater Motor 14
Adjustiny Product Temperature 14
Hw to Ad just Hear Micro Switch 15, 16
Cue.-Cut Arnperaqe 14
WAiiT4 1 KG 16
Hard-0-Matit Springs 16
Mix Tank Refrigeration 17
Energy Conservation Switch 17
a) How It Operates
b) Calibration of Temperature in
Cylinder 17
c) Calibration of Temperature in
Hopper 17

INDEX
2) BEATER ACTIVATING SWITCH
-----
and How It Operates
Page
flow to Adlust the Front Micro Switch 18
C) MAINTENANCE
-
WARL I NG
TROUBL,E SHOOTING GUIDE
-
Appendix - Figures 1 - 9
Wiring Dlayrams
Legend of Schematic Symbols
Parts - Description and code Numbers

FOREWORD
_ __ . . ---
Thank you for stlectir~gCOLDELITE to meet today's fast
growing demands. your
COI,DELIT~ freezer has been manu-
factured at
the most modern freezer manufacturing plant
in the U.S.A., our I,od~, New Jersey facility, utilizing
the most advanccd cqul:)mcnt and technology available in
the industry.
We, at coldelite, take great pride and
care in the manufacture of each and every freezer, using
only the finest co7,poncnts available, to provide you with
years of trouble-
f ree operation.
Over twenty-flve ycars of cxpcrlence in the manufacturing
of dis~ensrngequik)ment
hal~c gulded us ln the preparation
of thls Operation and Service Manual. PLEASE READ IT
CAREFULLY. Keep it for future reference and most of all,
follow the rnstructlons from the very time your machine
is delivered.
On the following p3ges, you
wlll find important inforrna-
tion and procedures whlch describe the proper installation,
sanitizing, operation and maintenance
of your COLDELITE
machine. b'e feel certaln that your full compliance with
these instructions will assure you of excellent performance,
trouble-free operatior, and a profitable business for years
to come.
NOTICE
Failure to closely follow set-up.and maintenance procedures
can void your warranty. Coldelite Corporation will
not be
responsible for any machine not properly maintained.
In the event this unit should malfunction, please contact
your Coldelite distributor or
an authorized service agency.
WARNING
EXTRE5iE CARE
MUST BE TAKEN WHEN REMOVING SIDE,
REAR
OR CONTROL BQX PkKELS.
AL\iAYS TURN THE SELECTOR SWITCH TO THE OFF
POSITION.
ALSO TURN OFF THE DISCOKNECT-
SkITCH ON ELECTRICAL SUPPLY LINE BEFORE
EXPOSING ANY ELECTRICAL CONNECTIONS AND/OR
tiOVINS PARTS, SUCH AS BELTS, PULLEYS, FAN
BLADES AND BEATER.
Paqe 1

INSTALLATION
--
PART I
--
A - UNCRATING
-
Before starting this procedure, make sure the carton
does not show evidence
of having been dropped, tampered with
or abused in such a way as to indicate that it contents may
have been damaged in transit.
IMPORTANT - In the event the outside of the Carton should
grve any
indication of possible hidden damage, state this
on the
bill of lading before signing. Contact the carrier
immediately and request an inspection of the damage. If
this is not done, you are responsible and must pay for any
repairs required.
1) Proceed with the uncrating, as follows:
a)
If the.unit arrives in a carton, it is held by plastic
strapping. When you cut this strapping, do it with caution
as it may spring out. Then remove the cover, and lift the
carton straight up.
b) If the unit arrives in a crate, the crate is nailed
around the
bottom perimeter. Remove all nails. The crate
has corner supports, three of which are riveted
and the other
one, stapled. By removing the staples, you
will be able to
slide the crate off the skid. The crate may also be lifted
vertically, if there
is sufficient head room.
C) Inspect the machine thoroughly for damage before re-
moving the skid. If the machine
is damaged, do not remove
the skid. Contact the carrier immediately, file your
claim,
and save all the crating material.
2) Remove the two side drip chutes. Remove the
screws hold-
ing the side panels. The panels may now be removed by
simply
sliding them upward slightly, then pulling outward at the bot-
tom, allowing the panel to slide down. The machine is held to
the skid by bolts and nuts on the left and right side. Remove
these bolts and the skid.
Check inside the hopper for accessories and parts, which
should be removed and unpacked.
Page 2

1) The freezer is now ready to Lc placed ln its location.
In selecting the location, consideration should be given to
the following:
a) If the-unit is alr cooled, allow at least 20 inches from
the rear
of the machine to the wall, so that there is a flow
of air circulating
around the unit.
b) If the unrt 1s w~~ter cooled, it should be located close to
the water supply
and a drain wlthin six feet.
C)
The ~achl ne should also kc close to the power supply, a
plug, and recc--ptacle or unfused disconnect and within six
feet.
d) Posrtlon the machine for casy accessibility for cleaning,
servicing and malntcnance.
e) Protect the machine from the sun. For every
2°F over 68OF,
the mach 1 ne ' s pel- forri.-jncc w I 11 ciccrcase by 1%.
f) Oncc the mhchine is set in its position, it must be leveled
as accurately as possible.
g) Free the compressor by loosening the retaining bolts and
renovincj the fastening blocks, if any. The compressor should
float freely
on its mountlny qromet. Clearance between rubber
grommet and rf-atdining
bolts should be approximately 1/16 of an
inch.
h) Place the rnackiine
in
a conspicuous area to be readily seen
by the public. This will lncr-ase the demand for ice cream.
K4CHINES EQUIPPED WITH WATER COOLED CONDENSERS
-
Machines equipped with water cooled condensers must be connected
to a running water line with a pressure of at least
35 psi, and
a flow eql-lal to the estimated consumption per hour (see Water
Valve Ad justncnt)
.
Connect fitting marked "Water In" to the cold water supply,
preferably with a shut-off valve, and connect the fitting
marked 'Water Out' to
a drain.
All plumbing must meet'local and state plumbing codes.
In some
cases the
use of a high pressure flexible hose with a pressure
rating
of at least 120 psi may be used to facilitate moving the
machine for cleaning, maintenance, etc.
Page 3

WATER VALVE - ADJUSTMENT
The water valve
is preset at the factory, but if an adjust-
ment should be required, proceed as follows:
To maintain a head pressure of
240-250 psig while the com-
pressor is running, attach a refrigeration high pressure
gauge to the compressor's high side discharge port, and open
the valve clockwise to increase the pressure or counter clock-
wise to decrease the pressure.
Estimated consumption is 80 gallons per hour. This figure
will increase if the vater temperature is over 68°F.
WARNING
--
Never expsse
water cooled machines to temperatures at or below
32°F without having drained the water from the condenser.
To drain, high pressure alr should be blown through the water
line from the water lnlet while the compressor is running (so
water valve is open).
his operation should be performed by
a refrigeration scrvlce man.
If this drainage
is not done properly, serious damage can
occur.
D) MACHINES WITH AIR COOLED CONDEESERS
Maintain at least
20 inches from the rear of the machine to the
wall.
The condenser should be cleaned once a month
to avoid dust and
litter from obstructing the flow of air which could affect the
performance of the machine and possibly stop its operation.
ELECTRIC= CONNECTIONS
Wiring should
be made in accordance with the National Electrical
Code and/or local electrical codes, rules
and regulations.
POWER SUPPLY must be adequate to meet requirements at all times.
Voltage fluctuations, with the machine in operation should not
exceed 2 10% of the normal or rated voltage.
ELECTRICAL REQUIREMELTS
- MODEL UF-253
F.L.A
WIRE SIZE
- - . . . - . . . .
ADEQUATE WIRING should be provided with regard to wire size or
gauge. Unless otherwise required
by the local Electrical Code,
same wire gauge at the machine junction box should be uscd for
Page 4
3 Ph. Air
I
31.2 Amps.
1 Ph. Air
48.0 Amps.
I
1 Ph. - 18
3 ph. Water 28.7 " 3 Ph. - 110
1 Ph. P:ater
-_--
45.4 "

ADEQUATE WIRING should be provided with regard to wire size
or gauge. Unless otherwise required by the local Electrical
Code, same
wire gauge at the machine junction box should be
used for the direct power line. See chart on previous page.
A separate circuit breaker with adequate fuse protection,
should be employed.
An unfused disconnect switch or proper size plug-in, close
to the freezer, is recommended.
BEATER ROTATION
After electrical connections are completed, check the rotation
of
the beater motor to see if it is in accordance with the
arrow marked on the body of the fly wheel. The rotation of
the beater should be clockwise, See Page 9b.
COLDELITE freezers are provided with protection on the beater
motor. Should the line voltage drop or if there is a short
circuit, the overload protector
will automatically disconnect
the starter and the machine
will stop immediately so that no
permanent damaqe can be caused to the motor. To start the
freezer acjain, push
the RESET button located on the front
lower portion of the control panel.
The heater or overload
must
cool down for several minutes before the RESET button
will operate.
The compressor
is also internally protected. If the Klixon
protector trips due to an overload, the compressor
will re-
activate after the Klixon automatica.lly resets.
IMPORTANT
IN
ALL INSTALLATIONS, BOTH SINGLE AND THREE PHASE, THE MACHINE
MUST BE PROPERLY GROUNDED. SINCE ALL ELECTRICAL COMPONENTS ARE
CONNECTED BY MEANS OF FLEXIBLE CONDUIT, ADEQUATE GROUND CONTI-
NUITY
IS ASSURED BY RUNNING AND FASTENING A GROUND LINE TO THE
MACHINE JUNCTION BOX.
WARNING
BEFORE REMOVING THE COVER
OF THE CONTROL BOX IN FRONT OF THE
MACHINE, TURN
THE
SELECTOR SWITCH TO OFF - POSITION AND DIS-
CONNECT MAIN SWITCH IN THE CIRCUIT BREAKER BOX.
Page 5

PART I1
-
EXPLANATION -- OF ELECTRICAL CONTROLS
A)
CONTROL PANEL - SELECTOR SWITCH
(Figure 1 - Code 11720160 )
Also see Figure A, below.
OFF
-
AUTO
-
- Machine is off.
- This position is used for production and
the dispensing of the
ice cream.
The con-
sistency of the product
is controlled by
the Hard-0-Matic. The temper-ature of the
mix in the hopper is controlled by the
thermostat, TEV.
ENERGY
The beaters do not run. The product in
CONSERVATION
- the freezing cylinders is held at the
correct storage temperature
by the thermo-
stat,
TEC. The tern?erature of the mix in
the hoppers is controlled by the thermo-
stat, TEV. The product should not
be
served when in this position.
BEATER
- Only the beater motors run. Refrigeration
circuits are cut off. This position
is to
be used during the cleaning, sanitizing,
and start-up operwon.
. .
WHITE LIGHT - Figure 1, Code Y1711210 - When light is on,
it indicates that the control switch has
been
set on BEATER. The machine should
never
be left in this position for any
period of
time longer than is necessary
for normal cleaning. This light serves
as
a reminder to prevent its overuse.
RESET BUTTON - Figure 1, Code #I720370 - Used for resetting
the motor protectors of the beater
motor in
case of voltage failure, phase interruption
or jamming of - the beaters.
fig. A ..
ENERGY CONS.
0
BEA 1 ER
Page 6

B) OTHER CONTROLS
FRONT MICRO SWITCHES (Figure 4, Code #1720260)
Switches are simultaneously activated by opening any spigot
thereby starting the beater motor and allowing the Hard-0-Matic
to sense the consistency of the product.
REAR MICRO SWITCH Figure
2, Code Y1720260) operates in con-
iunction with the Hard-0-Mat-ic to keep the product at the
proper consistency. (For adjustrnent
,' See part VII, Page 15. )
ENERGY CONSERVATION THERMOSTAT (TEC) holds the temperature of
the product in the cylinders at a temperature no higher than
28°F when the machine
is placed in the ENERGY CONSERVATION
mode. (For adjustment,
see PART VII.)
HOPPER THERMOSTAT (TEV) controls the temperature of the mix
in the hopper. (For adjustment, see Part VII.)
FILL LIGHT (Figure 1, Code #1711150) indicates level of mix
in the hopper has fallen low and more mix should be added.
These lights are located
to the left and right of the spigot
head and are orange in color. The light
is activated when mix.
tank is down to the last 1/2 gallon.
LEVEL SWITCH (Figure 9, Code X1664100) - The position of the
float (Figure 9, Code 41664010) will close the switch when
the level of the
mix has fallen below preset level.
Page 7

PART 111
This machine is new and it must therefore be completely dls-
assembled, washed, and sanitized before starting
it. Proceed
as follows:
1) Remove mix tank cover and itens packed in the tank (spare
parts, sanitizes, lubricant, gravity feed tube,
etc.).
2) NOW remove the remaining parts from the machine. Remove the
four hand knobs holding the head in place. Then remove the head
assembly itself. Pull the auger out
of the cylinder. Make cer-
tain that the lip seal on the rear of the shaft is removed, ~t
is advisable to use a dish pan to put the parts in so that no
part
is dropped or lost. This should be a plastic pan.
3) YOU now have all the parts for the freezer in the sink. Wash
all these parts with a detergent and the brushes supplied with
the machine.
DO NOT USE HOT-WATER ON ANY PLASTIC PARTS. Rinse
--
all parts in warm water. Do not dry these parts but allow to
air dry or assemble wet.
ASSEMBLY OF FREEZER - Reverse the ab~ve'~rocedure.
Install auger
first, being sure that the lip seal
is on the rear of the auger
and has been lubricated on both sides with the sample lubricant
supplied.
All '0' rings must be lubricated lightly with Petrogel
or equivalent.
?&en reassembling the freezer, refer
to the illustration, Figure E
CAUTION - It is very important to have the idler installed cor-
rectly. If not done properly, damage can be caused to the spigot
head assembly. Assembly instructions shduld be carefully followed
When assembling the idler, first hold
it so that the fins are in
an upright position. Then insert it so that the thinner portion
of the idler shaft fits into the grooved
slot at the front of the
beater/auger, Code 11640300, Figure C. The grooved slot must be
facing up at all times. The front bar of the idler should be in
a horizontal position. Push the idler back, inserting its shaft
into the hole of the beater/auger shaft.
If installed correctly,
the idler, when turned, should rotate freely and
will be automati-
cally locked in place. If
it does not rotate, it is installed
incorrectly.
Go through the above instructions again.
Page 8

ASSEMBLING THE FREEZER;
Reverse the preceding procedure. Install the augers/beaters
first, making sure the lip seal
is on the rear of the augers
and has been lubricated on
both sides.
AARNING - It is very impo~.tantto have the idler installed
correctly. If not done properly, damage can be caused to
the spigot head assembly. Assembly
instructions should be
carefully followed. See Figure
8.
dhen assembling the idler, flrst hold lt so that the fins
are In an upright position. Ttlen insert it so that the
thinner portion of the
idler shaft flts into the grooved
slot at the front of the beater/auger (Item 21). - The
grooved
slot must be facing up at all times. The front bar
of the idler should be in
a horizontal position. Push the
idler back, inserting
its shaft into the hole of the beater/
auger shaft.
If installed correctly, the idler, when turned,
should rotate freely and
wlll be automatically locked in
place.
If it does not rotate, it is installed incorrectly.
Go through the above instructions again.
Finally, when properly installed, the front bar of the idler
should be. in a vertical position so that the bar
will not
interfere with the two pins located inside the spigot head,
when
the head is installed. (See drawings on following page.)
All '0' rlnjs and the gears in the pumps must be lubricated
lightly wlth Petrogel or equivalent. Remember that you have
a pressurized machine and there must
be - NO leak in the pres-
sure system.
Insert
the pump drive shaft through the hole at the back of
the mix tank, rotate by hand until it engages properly with
the drive shaft pulley. Hold complete pump assembly in a
vertical position and slide over drive shaft. Rotate back
and forth until the drive shaft clicks into place in the
pump drive gear. Push assembly towards back of machine
and
turn counter-clockwise until the pump is horizontal and the
pump locking hook is engaged with the tank lock pin.
Slip feeding tube assembly into hole
at bottom of mix tank.
Hold at right angle to length of tank, and tube assembly
will
easily drop into place.
When reassembling the freezer, use the diagrams that follow
as a guide.
Page 9

ina ally, when properly Installed, the front bar of the idler
should be in a vertical position so that the bar will not
interfere with the two pins located inside the spigot head,
when the head is inst.11 led. (See drawings on following page.)
FIGURE B
CENTER PISTON
RETAINING KNOB
PAGE 9

TIGHTEN KNOBS ACCORDING TO
LETTER SEQUENCE
IMPORT
v
BEATER IDLER SHAFT MUST SPIN FREELY
AND BE IN A VERTICAL POSITION, AS SHOWN,
PRIOR TO INSTALLING SPIGOT HEAD.
PAGE 91

SANITIZING THE FEEZER
The freezer is now washed and reassembled. The next step
is to sanitize the machine which is most important. his
procedure will retard the growth of bacteria and insure
excellent tests on your product when examined by the
Sanitation and/or Department of Agriculture.
First, mix the sanitizer in a clean pail. Hot water first,
to dissolve the pow6er, and then cold \;ater. Instructions
are on the
sample sanitizer that is included with the
rr,achine.
Usually two tablespoons to two gallons of vater
will
give you a solution of 200 ppm chlorine, which is suf-
ficient to kill the bacteria. Do not exceed the formula as
it does not add to its effectiveness.
With the
selector switch in the OFF position, pour one
gallon of sanitizer into the mixtank. Lay the gravity feed
tube in the mix tank so that it is covered with the sanitiz-
ing solution. Now turn the selector switch to BEATER for
only
a few seconds.
The saniti2e.r will now run freely into the cylinder. Simply
olace a bucket or drain attachment under the head and allow
the sanitize'r to run out. During this operation, the selec-
tor switch is in the OFF -- position.
1;'e recommend that the auger/beater be turned as little as
possible during the i~zshing and sanitizing operations. In
the last phzse, you can turn the selector switch to BEATER
for two or three seconds to help remove the last of the
sani tizer.
For sanitary rezsons, the pl~stic cover on top of the mix
tank should be removed only for the time strictly necessary
to make the desired adjustments.
PAGE 10

NSF REGULATIONS
Drain machine of all mix and rinse with cool water.
Turn selector
switch(s1 to - OFF position.
Remove and disassemble spigot head, gravity
feed tube,
and
beater (s) .
In a clean pail, mix one ounce of Nu-Foam Liquid
Detercent
(or equivalent) with three gallons of warm
water (70 - 80°F). Clean and brush all surfaces in
contact with product. Flush thoroughly with warm
water.
Reassemble all parts and install on machine. See
instructions in manual.
In a clean pail, mix
two ounces of- Stera-Sheen Green
Label Sanitizer (or equivalent) with two gallons of
warm xater. This will make a 200 ppm concentration
of chlorine sanitizing solution.
Fill hopper
(s) and cylinder (s) with sanitizing solution.
Turn
selector switch(s) to BEATER position for approx-
imately 30 seconds. Make sure sanitizer solution
is in
contact with product contact surfaces for three to
five minutes.
Drain machine thoroughly before refilling with product.
Page 108

PART V
--
STARTING -- THE FmEZER
The model UF-253G is now sanitized and ready for production.
Start the machine as follows:
1)
Insert the gravity feed tube in the mix tank. Pour at least
one gallon of liquid mix into the mix tank. The maximum capacity
of the hopper
is two gallons. Never load mix above the top of
the feeding
tube. See diagram below.
Turn the
selector switch to BEATER and allow the machine to run a
few seconds. Place a pail or cup under the dispensing nozzle,
open the dispensing plunger and let the mix push out any sanitizer
left in the cylinder. When pure mix comes out of the head,
close
the spigot handle and allow the machine to cortinue to run with
the switch in the
BEATER position for one minute.
An alternate method
bf "pre-filling" the cylinders is to pour 3
pints of liquid mix into the freezing cylinders prior.to installing
the gravity feed tubes. Once filled with
3 pints of liquid, the
gravity tubes should be installed, machine selector'switch tu'rned
to the "auto" position, and hoppers filled to maximum level as
shown below.
2)
Now turn the selector switch to -- AUTO.
This activates the torque
control to sense that refrigeration
is required. Then
simply allow
the machine
to run until it goes off automatically.
3)
You are now ready to draw a finished product.
Pull the dispenring
handle dom slowly until the product comes out. The freezer
is now
in
the normal operating position.
Be sure to add mix when nece-
ssary, and simply dispense the product, as'required.
Page 11

In the mix tanks, supplied with the machine, you will find two gravit)
feed tubes. Each consists of two tubes, one sliding inside the other
and
a plunger/splash guard.
The inner tube blends the flow of air and mix into the freezing cylinder
Air enters through the top of the tube and the mix through a round
hole
at the base as illustrated below.
The outer
tube is actually a valve. Rotating it frm hole to hole on
the outer tube varies the size of the hole and the amount of mix that
flows into the freezing cylinder. The size of the air inlet, at the
top of the tube, does not change
so the amount of air that enters the
freezing
cylinder is constant.
You can vary the overrun
by letting more or less mix enter the freezing
cylinder
by manually regulating the valve. You must align the mix
inlet holes on both the inner and outer tubes or no mix will enter
the cylinder. You can
see this hole at the top of both tubes. (see
diagram below) .
The plunger/splash guard keeps the mix from splashing on the mix
tank cover and serves
as a device to eliminate potential clogging
inside the tubes.
You
may find it necessary to adjust the position of the outer tube
in order to regulate'the amount of mix entering the freezing cylinder
after start-up. Actually, sales conditions will dictate the proper
adjustment.
If more production is required, increase the opening by rotating the
outer tube to a larger hole, and conversely, when business is slow,
rotate to a smaller hole on the outer
tube, reducing the opening. Natur
ally when the mix runs low in the mix tank, you will open the slot more
3,ld eventually take the feed tube out completely to use the last of
mix in the mix tank.
. .
Energy conservation: During long idle periods, it is recommended the
outer sleeve of the gravity tube be rotated to the position which closer
mix intake hole completely.
IMPORTANT: Remember
to rotate the outer tube to the appropriate
opening before switching
to the "automatic" mode.
MINIMUM
MODERATE MAXIMUM
ENERGY
PRODUCT ION PRODUCTION PRODUCTION CONSERVATION
Page 12