Part Number: 9291482 05/16
Milk, Ice Cream and Milk & Ice
Cream Dispensers
Original Instructions
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
N, N6/N10/N14
Free-standing milk or
beverage dispensers
NLFAC
Free-standing milk or
beverage dispensers
with air curtain
NDF
Free-standing milk or
beverage dispensers
NSCF, SCF
Free-standing ice cream
dispensers and milk & ice
cream dispensers
MF, MFSC
Built-in milk or
beverage dispensers
Shelleymatic
®
by Deleld
Safety Notices
n
Warning
Read this manual thoroughly before operating, installing
or performing maintenance on the equipment. Failure
to follow instructions in this manual can cause property
damage, injury or death.
DANGER
Keep power cord AWAY from HEATED surfaces. DO NOT
immerse power cord or plug in water. DO NOT let power
cord hang over edge of table or counter.
DANGER
Do not install or operate equipment that has been
misused, abused, neglected, damaged, or altered/
modified from that of original manufactured
specifications.
DANGER
All utility connections and fixtures must be maintained
in accordance with Local and national codes.
DANGER
Do not lift the condensing unit by the refrigerant tubing
or other components. These features will not support
the condensing unit weight. Injury and unit damage
may occur!
n
Warning
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
concerning use of the appliance by a person responsible
for their safety. Do not allow children to play with this
appliance.
n
Warning
Do not store or use gasoline or other flammable vapors
or liquids in the vicinity of this or any other appliance.
Never use flammable oil soaked cloths or combustible
cleaning solutions, for cleaning.
n
Warning
DO NOT touch refrigeration lines inside units; some may
exceed temperatures of 200°F (93.3°C).
n
Warning
This product contains chemicals known to the State
of California to cause cancer and/or birth defects or
other reproductive harm. Operation, installation, and
servicing of this product could expose you to airborne
particles of glasswool or ceramic fibers, crystalline
silica, and/or carbon monoxide. Inhalation of airborne
particles of glasswool or ceramic fibers is known to the
State of California to cause cancer. Inhalation of carbon
monoxide is known to the State of California to cause
birth defects or other reproductive harm.
n
Warning
Authorized Service Representatives are obligated to
follow industry standard safety procedures, including,
but not limited to, local/national regulations for
disconnection / lock out / tag out procedures for all
utilities including electric, gas, water and steam.
n
Warning
Do not use electrical appliances or accessories other
than those supplied by the manufacturer.
n
Warning
Use caution when handling metal surface edges of all
equipment.
Note
Proper installation, care and maintenance are
essential for maximum performance and trouble-free
operation of your equipment. Visit our website www.
mtwkitchencare.com for manual updates, translations,
or contact information for service agents in your area.
Part Number: 9291482 05/16 3
Section 1
General Information
Model Numbers .................................................................................................................. 5
Serial Number Location .....................................................................................................5
Warranty Information ........................................................................................................5
Regulatory Certifications ..................................................................................................5
Section 2
Installation
Location ..............................................................................................................................7
Clearance Requirements ....................................................................................................8
Weight Of Equipment ........................................................................................................8
Dimensions ......................................................................................................................... 8
Cutout Installation Dimension .......................................................................................... 8
Electrical Service ................................................................................................................9
Voltage .......................................................................................................................................................9
Ground Fault Circuit Interrupter .......................................................................................................9
Rated Amperages, Horsepower, Voltage & Power Cord Chart ...............................................9
Refrigeration ....................................................................................................................10
Drain Connections ............................................................................................................10
Caster Installation ............................................................................................................10
How To Adjust Self-Leveling Dispenser .......................................................................... 11
Section 3
Operation
Loading & Dispensing Method........................................................................................13
MF Series Operation .........................................................................................................13
Loading: MF Series .............................................................................................................................. 13
MFSC, N, N6/10/14 & NDF Series Operation ...................................................................14
Low Pressure Control ......................................................................................................................... 14
Loading: MFSC & N Series ................................................................................................................. 14
Loading: N6/10/14 Series ................................................................................................................. 14
Loading: NDF Series ........................................................................................................................... 14
NLFAC Series Operation ................................................................................................... 15
Loading: NLFAC Series ....................................................................................................................... 15
NLFAC Thermostat Control ..............................................................................................................15
NSCF & SCF Series Operation ..........................................................................................15
Loading ................................................................................................................................................... 15
Section 4
Maintenance
Cleaning and Sanitizing Procedures ...............................................................................17
General .................................................................................................................................................... 17
Interior Cleaning .................................................................................................................................. 18
Exterior Cleaning ................................................................................................................................. 19
Cleaning the Condenser Coil ..........................................................................................................19
Table of Contents
4 Part Number: 9291482 05/16
Table of Contents (continued)
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Part Number: 9291482 05/16 5
Model Numbers
Remote built-in milk or beverage dispensers
MF-2821 MF-44
MF-31 MF-57
Self-contained built-in milk or beverage dispensers
MFSC-2821 MFSC-44
MFSC-31 MFSC-57
Self-contained free-standing milk or beverage dispensers
N-520 N6-1313-34
N-860 N6-1313-36
N-1200 N10-1313-36
N-1530 N14-1313-36
Self-contained mobile drop-front milk or beverage
dispensers
NDF-12 NDF-18
Self-contained free-standing milk or beverage dispensers
with air curtain
NLFAC-8 NLFAC-16
NLFAC-12
Self-contained free-standing milk and ice cream dispensers
NSCF-48
Self-contained free-standing ice cream dispensers
SCF-32 SCF-48
Serial Number Location
Always have the serial number of your unit available
when calling for parts or service.
Model Series Serial Tag Location
MF
On the end above the refrigeration system
MFSC
N
Rear of the unit above the louver
N6/N10/N14
NDF Front right hand corner under the lid
NLFAC At the rear of the unit by the power cord
NSCF
Rear of the unit above the louver
SCF
Warranty Information
• Register your product for warranty,
• Verify warranty information,
• View and download a copy of your warranty,
@ www.delfield.com/warranty
Regulatory Certifications
All models are certified by:
•
National Sanitation Foundation (NSF)
•
Underwriters Laboratories (UL)
Section 1
General Information
6 Part Number: 9291482 05/16
General Information Section 1
THIS PAGE INTENTIONALLY LEFT BLANK
Part Number: 9291482 05/16 7
DANGER
Installation must comply with all applicable fire and
health codes in your jurisdiction.
DANGER
Use appropriate safety equipment during installation
and servicing.
n
Warning
Remove all removable panels before lifting and
installing.
n
Warning
Do not damage the refrigeration circuit when installing,
maintaining or servicing the unit.
Location
n
Warning
This equipment must be positioned so that the plug is
accessible unless other means for disconnection from
the power supply (e.g., circuit breaker or disconnect
switch) is provided.
n
Warning
Adequate means must be provided to limit the
movement of this appliance without depending on or
transmitting stress to the electrical conduit.
n
Warning
To avoid instability the installation area must be capable
of supporting the combined weight of the equipment
and product. Additionally the equipment must be level
side to side and front to back.
n
Warning
This equipment is intended for indoor use only. Do not
install or operate this equipment in outdoor areas.
,
Caution
Do not position the air intake vent near steam or heat
exhaust of another appliance.
The location selected for the equipment must meet the
following criteria. If any of these criteria are not met, select
another location.
• Units are intended for indoor use only.
• The location MUST be level, stable and capable of
supporting the weight of the equipment.
• The location MUST be free from and clear of
combustible materials.
• Equipment MUST be level both front to back and side to
side.
• Position the equipment so it will not tip or slide.
• Front casters MUST be locked once positioned.
• Recommended air temperature is 41° - 86°F (5° - 30°C).
• The unit should not be installed directly next to high
heat generating equipment (ranges, griddles, etc.).
• Proper air supply for ventilation is REQUIRED AND
CRITICAL for safe and efficient operation. Refer to
Clearance Requirements chart on page 8.
• Do not obstruct the flow of ventilation air. Make sure the
air vents of the equipment are not blocked.
• Do not install the equipment directly over a drain.
Steam rising up out of the drain will adversely affect
operation, air circulation, and damage electrical /
electronic components.
Section 2
Installation
8 Part Number: 9291482 05/16
Installation Section 2
Clearance Requirements
DANGER
Minimum clearance requirements are the same for
noncombustible locations as for combustible locations.
The flooring under the appliance must be made of a
noncombustible material.
DANGER
Risk of fire/shock. All minimum clearances must be
maintained. Do not obstruct vents or openings.
Rear of the Unit
2.00” (5cm)
• Keep the vents clean and free of obstruction.
• Casters must be used and not removed.
Weight Of Equipment
Model Weight
MF-2821 197lbs / 89kg
MF-31 238lbs / 108kg
MF-44 312lbs / 142kg
MF-57 335lbs / 152kg
MFSC-2821 267lbs / 121kg
MFSC-31 306lbs / 139kg
MFSC-44 413lbs / 188kg
MFSC-57 461lbs / 209kg
N-520 327lbs / 148kg
N-860 392lbs / 178kg
N-1200 462lbs / 210kg
N-1530 532lbs / 241kg
N6-1313-34 382lbs / 173kg
N6-1313-36 402lbs / 182kg
N10-1313-36 565lbs / 256kg
N14-1313-36 670lbs / 304kg
NDF-12 365lbs / 166kg
NDF-18 430lbs / 195kg
NLFAC-8 401lbs / 182kg
NLFAC-12 491lbs / 223kg
NLFAC-16 583lbs / 264kg
NSCF-48 390lbs / 177kg
SCF-32 334lbs / 152kg
SCF-48 414lbs / 188kg
Dimensions
Model L D H
MF-2821 14.50” / 37cm 26.25” / 67cm 28.25” / 72cm
MF-31 28” / 71cm 26.25” / 67cm 28.25” / 72cm
MF-44 41.50” / 105cm 26.25” / 67cm 28.25” / 72cm
MF-57 55” / 140cm 26.25” / 67cm 28.25” / 72cm
MFSC-2821 28.50” / 72” 26.25” / 67cm 28.25” / 72cm
MFSC-31 42” / 107 26.25” / 67cm 28.25” / 72cm
MFSC-44 55.50” / 141cm 26.25” / 67cm 28.25” / 72cm
MFSC-57 69” / 175cm 26.25” / 67cm 28.25” / 72cm
N-520 29” / 74cm 28” / 71cm 36” / 91cm
N-860 42” / 107cm 28” / 71cm 36” / 91cm
N-1200 55” / 140cm 28” / 71cm 36” / 91cm
N-1530 68” / 173cm 28” / 71cm 36” / 91cm
N6-1313-34 36” / 91cm 32” / 81cm 34” / 86cm
N6-1313-36 36” / 91cm 32” / 81cm 36” / 91cm
N10-1313-36 54.50” / 138cm 32” / 81cm 36” / 91cm
N14-1313-36 73” / 185cm 32” / 81cm 36” / 91cm
NDF-12 34” / 86cm 31.50” / 80cm 57.25” / 145cm
NDF-18 48” / 122cm 31.50” / 80cm 57.25” / 145cm
NLFAC-8 40” / 102cm 32” / 81cm 42.50” / 108cm
NLFAC-12 54” / 137cm 32” / 81cm 42.50” / 108cm
NLFAC-16 68” / 173cm 32” / 81cm 42.50” / 108cm
NSCF-48 48” / 122cm 28” / 71cm 37” / 94cm
SCF-32 32.50” / 83cm 28” / 71cm 37” / 94cm
SCF-48 48” / 122cm 28” / 71cm 37” / 94cm
Cutout Installation Dimension
Model Cutout Dim. (L x D) Counter Cutout
for Louver
MF-2821 (1) 10.75” x 21” No
MF-31 (2)10.75” x 21”* No
MF-44 (3)10.75” x 21”* No
MF-57 (4) 10.75” x 21”* No
MFSC-2821 (1) 10.75” x 21” Yes
MFSC-31 (2) 10.75” x 21”* Yes
MFSC-44 (3) 10.75” x 21”* Yes
MFSC-57 (4) 10.75” x 21”* Yes
N Seres NA No
N6/N10/N14 Series NA No
NDF Series NA No
NLFAC Series NA No
NSCF Series NA No
SCF Series NA No
NOTE: *A 2.87” space is required between each cutout.
MF series and MFSC series are built into the counter from
below and must be supported from the bottom.
Self-contained refrigerated MFSC series units require air
flow to the compressor. A louver is provided and must
be installed in the counter in front of the condenser. An
equal size opening at the rear of the cabinet must also be
provided to allow warm air to escape. Failure to do so will
void all product warranties.
Part Number: 9291482 05/16 9
Section 2 Installation
Electrical Service
DANGER
Check all wiring connections, including factory
terminals, before operation. Connections can become
loose during shipment and installation.
n
Warning
This appliance must be grounded and all field wiring
must conform to all applicable local and national
codes. Refer to rating plate for proper voltage. It is the
responsibility of the end user to provide the disconnect
means to satisfy the authority having jurisdiction.
VOLTAGE
All electrical work, including wire routing and grounding,
must conform to local, state and national electrical codes.
The following precautions must be observed:
• The equipment must be grounded.
• A separate fuse/circuit breaker must be provided for
each unit.
• A qualified electrician must determine proper wire size
dependent upon location, materials used and length
of run (minimum circuit ampacity can be used to help
select the wire size).
• The maximum allowable voltage variation is ±10% of
the rated voltage at equipment start-up (when the
electrical load is highest).
• Check all green ground screws, cables and wire
connections to verify they are tight before start-up.
GROUND FAULT CIRCUIT INTERRUPTER
Ground Fault Circuit Interrupter (GFCI/GFI) protection is
a system that shuts down the electric circuit (opens it)
when it senses an unexpected loss of power, presumably
to ground. Manitowoc does not recommend the use of
GFCI/GFI circuit protection to energize our equipment.
If code requires the use of a GFCI/GFI then you must
follow the local code. The circuit must be dedicated, sized
properly and there must be a panel GFCI/GFI breaker. We
do not recommend the use of GFCI/GFI outlets to energize
our equipment as they are known for more intermittent
nuisance trips than panel breakers.
RATED AMPERAGES, HORSEPOWER, VOLTAGE &
POWER CORD CHART
Model V/Hz/Ph Amps H.P. NEMA
Plug
MF Series NA N/A N/A N/A
MFSC-2821 115/60/1 5.0 1/4 5-15P
MFSC-31 115/60/1 5.0 1/4 5-15P
MFSC-44 115/60/1 5.0 1/4 5-15P
MFSC-57 115/60/1 5.0 1/4 5-15P
N-520 115/60/1 5.0 1/4 5-15P
N-860 115/60/1 5.0 1/4 5-15P
N-1200 115/60/1 5.0 1/4 5-15P
N-1530 115/60/1 5.0 1/4 5-15P
N6-1313-34 115/60/1 5.0 1/4 5-15P
N6-1313-36 115/60/1 5.0 1/4 5-15P
N10-1313-36 115/60/1 5.0 1/4 5-15P
N14-1313-36 115/60/1 5.0 1/4 5-15P
NDF-12 115/60/1 5.0 1/4 5-15P
NDF-18 115/60/1 7.0 1/3 5-15P
NLFAC-8 115/60/1 7.0 1/3 5-15P
NLFAC-12 115/60/1 9.0 1/2 5-15P
NLFAC-16 115/60/1 11.0 1/2 5-15P
NSCF-48 115/60/1 7.1 1/4 5-15P
SCF-32 115/60/1 7.1 1/4 5-15P
SCF-48 115/60/1 8.0 1/3 5-15P
10 Part Number: 9291482 05/16
Installation Section 2
Refrigeration
Model BTU
Load
Evap BTU/
TD
BTU
Capacity
Ref/Charge
MF-2821 264 45/26º N/A 134a/N/A
MF-31 296 50/24º N/A 134a/N/A
MF-44 408 64/21º N/A 134a/N/A
MF-57 519 79/18º N/A 134a/N/A
MFSC-2821 264 45/26º 1166 134a/16oz
MFSC-31 296 50/24º 1212 134a/16oz
MFSC-44 408 64/21º 1346 134a/16oz
MFSC-57 519 79/18º 1447 134a/16oz
N-520 189 33/31º 1035 134a/16oz
N-860 259 42/28º 1167 134a/16oz
N-1200 328 51/25º 1273 134a/16oz
N-1530 398 60/23º 1360 134a/16oz
N6-1313-34 245 42/28º 1167 134a/16oz
N6-1313-36 245 42/28º 1167 134a/16oz
N10-1313-36 353 55/24º 1315 134a/16oz
N14-1313-36 455 68/21º 1422 134a/16oz
NDF-12 687 49/25º 1204 134a/16oz
NDF-18 898 60/27º 1585 134a/24oz
NLFAC-8* 668 140/16º 2184 134a/24oz
NLFAC-12* 859 140/21º 2885 134a/32oz
NLFAC-16* 1050 140/23º 3193 134a/32oz
NSCF-48 139(ref)
414(frz)
37/43º(ref)
37/21º(frz)
1596(ref)
796(frz)
404A/16oz
SCF-32 709 51/18º 915 404A/16oz
SCF-48 1043 69/19º 1350 404A/24oz
NOTE: * BTU is with lids closed.
For installation of remote MF series units, consult a
refrigeration service company to connect refrigeration lines
to the remote condensing unit.
Drain Connections
n
Warning
If a mechanically cooled refrigerated base does not have
a condensate evaporator supplied, you must connect
the condensate line to a suitable drain. Otherwise, water
will collect on the floor, causing a potentially hazardous
situation.
n
Warning
Moisture collecting from improper drainage can create a
slippery surface on the floor and a hazard to employees.
It is the owner’s responsibility to provide a container or
outlet for drainage.
All refrigerators have drains located in the bottom of the
tank. An appropriate drainage area or container must be
provided by the owner.
Caster Installation
DANGER
Legs or casters must be installed and the legs or casters
must be screwed in completely to prevent bending.
When casters are installed the mass of this unit will
allow it to move uncontrolled on an inclined surface.
These units must be tethered/secured to comply with
all applicable codes.
n
Warning
The unit must be installed in a stable condition with
the front wheels locked. Locking the front casters after
installation is the owner’s and operator’s responsibility.
n
Warning
Use a jack to lift the refrigeration unit off the ground
just far enough to remove the caster. Place blocking
underneath the unit. Do not work underneath a raised
unit without proper blocking. Do not lift the unit more
than necessary to remove the caster. Lifting the unit too
far can make the unit unstable.
1. Carefully place the unit on its back.
2. Located at each caster mounting location are 4 bolts,
for a total of 16. Remove them.
3. Place a locking plate caster over one of the front holes,
matching the 4 mounting holes to the pre-drilled holes
in the underside of the unit. Insert 4 bolts and tighten.
4. Repeat step 3 with the other three casters.
5. Carefully lift the unit upright.
,
Caution
After installing casters, the unit must stand upright for
twenty-four (24) hours before being powered up to
assure oil return to the compressor sump.
Part Number: 9291482 05/16 11
Section 2 Installation
How To Adjust Self-Leveling Dispenser
Tools Needed: One small flat head screw driver; One Phillips
head screw driver.
1. Always wear safety glasses when adjusting your
dispenser. Also, lock brakes on mobile units before
beginning.
2. Unload dispenser and remove stainless steel load tray
by lifting straight up and set it aside.
RET
AINER
LOAD TRAY
ELEVATOR HOUSINGS
RETAINER
3. Use small regular screw driver to loosen each retainer
mounted on stainless steel rod at top of each elevator
housing.
4. To remove elevator housing, lift housing straight up
to clear the stud on unit base. Then gently swing the
bottom of the housing towards the inside of the unit
and pull housing out of the unit. Lay housing on flat
surface.
5. Use Phillips head screw driver to remove front panel on
the elevator housing.
REMOVE SCREWS,
SLIDE COVER OFF
6. If carrier is riding too high, you need to remove springs.
With carrier all the way to the top, gently disengage
one spring at a time, unhooking bottom loop out of
carrier bracket. Remove as many springs as necessary.
REMOVE OR
ADD SPRINGS
AS NEEDED
If carrier is riding too low, you need to add springs. With
carrier all the way to the top, gently engage one spring
at a time by hooking bottom loop of spring into carrier
bracket. Add as many springs as necessary.
7. When finished, put elevator housing back in unit and
put stainless steel load tray back on elevator housings.
Load unit to test dispensing level. If spring adjustment
does not position carrier properly, repeat procedure
#6 trying different springs. If this does not work, a
different set of springs may be required. To order, call
The Delfield Company Parts and Service Department at
800.733.8829
8. If level is appropriate, put front panels back on and
tighten retainer.
,
Caution
Dispenser should not be operated with front panels off
elevator housing.
Note
When adjusting the elevators make sure each have
the same number and size of springs connected to the
carrier on both sides. This will prevent the load tray from
binding.
12 Part Number: 9291482 05/16
Installation Section 2
THIS PAGE INTENTIONALLY LEFT BLANK
Part Number: 9291482 05/16 13
DANGER
The on-site supervisor is responsible for ensuring that
operators are made aware of the inherent dangers of
operating this equipment.
DANGER
Do not operate any appliance with a damaged cord
or plug. All repairs must be performed by a qualified
service company.
DANGER
Never stand on the unit! They are not designed to
hold the weight of an adult, and may collapse or tip if
misused in this manner.
n
Warning
The operator of this equipment is solely responsible
for ensuring safe holding temperature levels for all
food items. Failure to do so could result in unsafe food
products for customers.
n
Warning
Do not contact moving parts.
n
Warning
All covers and access panels must be in place and
properly secured, before operating this equipment.
n
Warning
Damp or wet hands may stick to cold surfaces.
,
Caution
Do not block the supply and return air grills or the air
space around the air grills. Keep plastic wrappings,
paper, labels, etc. from being airborne and lodging in
the grills. Failure to keep the air grills clear will result in
unsatisfactory operation of the system.
,
Caution
Do not throw items into the storage area. Failure to
heed this recommendation could result in damage to
the interior of the cabinet or to the blower coil.
Loading & Dispensing Method
Do not load inside the unit cabinet so full that air cannot
circulate. Take care not to block air flow to the fans and
allow space along sides.
Model Loading/Dispensing
MF Series NA
MFSC Series
N-520
Sliding Top Lids
N-860
N-1200
N-1530
N6-1313-34
N6-1313-36
N10-1313-36
N14-1313-36
NDF-12
Drop Front & Flip Top Lids
NDF-18
NLFAC-8
Hinged Lids W/Air CurtainNLFAC-12
NLFAC-16
NSCF-48
Hinged Top LidsSCF-32
SCF-48
MF Series Operation
MF series remote models will require a connection to a
separate refrigeration system.
LOADING: MF SERIES
To load, place a complete layer of cartons or bottles
standing upright on the load tray. Then place a divider tray
on top of this layer, then another layer of cartons or bottles
on this tray, then another tray and another layer, etc. As
each additional tray is loaded, the elevators gradually lower.
The last layer may be placed on top without the use of
another tray. When loading the average tall half pint bottles,
four layers may be loaded into each compartment standing
upright and the fifth layer laying down.
Important
It is very important to use the divider trays provided
between each successive layer of contents to assure the
correct balance of the load and the proper action of the
elevating mechanism.
Wire racks, when used, should be loaded completely. When
placing one rack on top of the other, be sure the stacking
lugs are properly aligned.
Section 3
Operation
14 Part Number: 9291482 05/16
Operation Section 3
MFSC, N, N6/10/14 & NDF Series Operation
MFSC, N, N6/10/14 and NDF series milk dispensers are set
at the factory to maintain temperatures between 36°F and
40°F (2°C - 4°C). No further adjustment should be necessary.
To begin operation on self-contained models, plug the
electrical supply cord into a receptacle with the correct
voltage.
LOW PRESSURE CONTROL
If it is necessary to adjust the temperature, turn the knob
clockwise as indicated on the control. Make adjustments
gradually. It may take an hour to realize the temperature
change. Milk or beverage dispenser factory settings are
17ºF (9°C) differential, 34ºF (1°C)cut in, and 17ºF (-8°C) cut
out. Milk and ice cream dispenser factory settings are 25ºF
(14°C) differential, 30ºF (-1°C) cut in, and 5ºF (-15°C) cut out.
Cut In -
Knob
Controlled
Dierential
LOADING: MFSC & N SERIES
To load, place a complete layer of cartons or bottles
standing upright on the load tray. Then place a divider tray
on top of this layer, then another layer of cartons or bottles
on this tray, then another tray and another layer, etc. As
each additional tray is loaded, the elevators gradually lower.
The last layer may be placed on top without the use of
another tray. When loading the average tall half pint bottles,
four layers may be loaded into each compartment standing
upright and the fifth layer laying down.
Important
It is very important to use the divider trays provided
between each successive layer of contents to assure the
correct balance of the load and the proper action of the
elevating mechanism.
Wire racks, when used, should be loaded completely. When
placing one rack on top of the other, be sure the stacking
lugs are properly aligned.
LOADING: N6/10/14 SERIES
These cabinets are designed to dispense 13” x 13” x 11”
(33cm x 33cm x 28cm) high (maximum dimensions) dairy
cases. Place one case loaded with milk on the carrier and
then place a second case loaded with milk on top of the
first case. Press down on the cases leaning them toward
the retaining bracket located under the top lid track, then
gradually release pressure on the cases so that the top edge
of the case engages with the retaining bracket.
The elevating mechanism is designed to keep the contents
several inches below the top of the cabinet when fully
loaded. This distance serves two purposes:
A. It keeps the top layer of milk completely refrigerated
even when the lids are removed.
B. It insures that the lids will operate without striking the
contents as successive layers are added.
LOADING: NDF SERIES
These cabinets are designed to dispense 13” x 13” x 11”
(33cm x 33cm x 28cm) high (maximum dimensions) dairy
cases. They do not have a self-leveling mechanism. Simply
place the cases on top of each other inside the cabinet
through the wide opening in the top and front.
Part Number: 9291482 05/16 15
Section 3 Operation
NLFAC Series Operation
NLFAC series milk dispensers are set at the factory to
maintain temperatures between 36°F and 40°F (2°C - 4°C).
No further adjustment should be necessary. To begin
operation plug the electrical supply cord into a receptacle
with the correct voltage.
LOADING: NLFAC SERIES
These cabinets are designed to dispense 13” x 13” x 11”
(33cm x 33cm x 28cm) high (maximum dimensions) dairy
cases.
• Model NLFAC-8 holds eight cases; four on the bottom
and four on the top.
• Model NLFAC-12 holds twelve cases; six on the bottom
and six on the top.
• Model NLFAC-16 holds sixteen cases, eight on the
bottom and eight on the top.
Milk cases are loaded through the wide opening in the top
and front of the unit. Fold the hinged lids up and back and
rest them on the top. The cabinet interior has self-locating
guides installed to make loading easy.
NLFAC THERMOSTAT CONTROL
Set the thermostat toward 1 for higher temperatures and
toward 7 for lower temperatures. The refrigerator factory
setting is 4 and maintains 38ºF (3ºC) in the box.
NSCF & SCF Series Operation
NSCF Series combination milk and ice cream dispensers
are set at the factory to maintain temperatures between
36°F and 40°F (2°C - 4°C) for refrigerated product and
between -5°F and 0°F (-21°C - 18°C) for frozen product.
SCF Series ice cream dispensers are set at the factory to
maintain temperatures between -5°F and 0°F (-21°C - 18°C).
Each combination unit is constructed with two tanks
and separate controls. No further adjustments should be
necessary. To begin operation plug the electrical supply
cord into a receptacle with the correct voltage.
LOADING
To load, place two layers of ice cream on the load tray, then
a tray, two additional layers of ice cream, then another
tray, etc. Do not stack ice cream above the frost line on
the interior of the freezer. See the instructions for the MF
units (above) for loading the refrigerated portion of the
combination units.
16 Part Number: 9291482 05/16
Operation Section 3
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Part Number: 9291482 05/16 17
DANGER
It is the responsibility of the equipment owner to
perform a Personal Protective Equipment Hazard
Assessment to ensure adequate protection during
maintenance procedures.
DANGER
Failure to disconnect the power at the main power
supply disconnect could result in serious injury or death.
The power switch DOES NOT disconnect all incoming
power.
DANGER
Disconnect electric power at the main power disconnect
for all equipment being serviced. Observe correct
polarity of incoming line voltage. Incorrect polarity can
lead to erratic operation.
n
Warning
Never use sharp objects or tools to remove ice or frost.
Do not use mechanical devices or other means to
accelerate the defrosting process.
Cleaning and Sanitizing Procedures
,
Caution
Maintenance and servicing work other than cleaning as
described in this manual must be done by an authorized
service personnel.
GENERAL
n
Warning
When using cleaning fluids or chemicals, rubber gloves
and eye protection (and/or face shield) must be worn.
You are responsible for maintaining the equipment
in accordance with the instructions in this manual.
Maintenance procedures are not covered by the warranty.
Section 4
Maintenance
Maintenance Daily Weekly Monthly Semi Annual
After Prolonged
Shutdown
At Start-Up
Interior X X X
Exterior X X X
Gasket X X X
Self-Contained
Evaporator Drain
X X X
Condenser Coil X X X
Casters X X X
Remote
Evaporator Pan
X X X
18 Part Number: 9291482 05/16
Maintenance Section 4
INTERIOR CLEANING
Note
When cleaning interior and exterior of unit, care should
be taken to avoid the front power switch and the rear
power cord. Keep water and/or cleaning solutions away
from these parts.
Note
Never use a high-pressure water jet for cleaning or hose
down or flood interior or exterior of units with water. Do
not use power cleaning equipment, steel wool, scrapers
or wire brushes on stainless steel or painted surfaces.
The interior can be cleaned using soap and warm water. If
this isn’t sufficient, try ammonia and water or a nonabrasive
liquid cleaner.
To help prevent corrosion of the evaporator coil, store all
acidic items, milk is slightly acidic, in seal-able containers.
Immediately wipe up all spills.
Cleaning the NLFAC milk dispensers
This instruction applies to the model NLFAC dispenser only.
A drain is supplied to simplify cleaning of the interior. Open
the drain tube clamp. Drain accumulated liquid from the
cabinet. Be sure to re-clamp the tubing before resuming
operation of the NLFAC unit.
After cleaning the interior and exterior as described, be sure
to return the milk case loading tray to the bottom of the
unit. The load tray is required not only for easy self-locating
of milk cases, but it also ensures proper air flow through the
evaporator coil for the air curtain.
Note
Any restriction to the air flow path, including leaving
the milk case load tray out of the cabinet, will result in
the voiding of your warranties.
Self-Contained Units Evaporator Maintenance
Each unit has a drain located inside the unit that removes
the condensation from the evaporator coil and routes it
to an external condensate evaporator pan. Each drain can
become loose or disconnected during normal use. If you
notice water accumulation on the inside of the unit, be sure
the drain tube is connected to the evaporator drain pan.
If water is collecting underneath the unit, make sure the
end of the drain tube is in the condensate evaporator. The
leveling of the unit is important as the units are designed to
drain properly when level. Be sure all drain lines are free of
obstructions.
Remote Units Evaporator Maintenance
The stainless steel condensate evaporator pan should be
cleaned monthly. Use a vacuum cleaner or damp cloth to
remove dust that may have accumulated. This will prevent
corrosion of the stainless steel.
Part Number: 9291482 05/16 19
Section 4 Maintenance
EXTERIOR CLEANING
Note
Never use an acid based cleaning solution on exterior
panels! Many food products have an acidic content,
which can deteriorate the finish. Be sure to clean the
stainless steel surfaces of ALL food products.
Clean the area around the unit as often as necessary to
maintain cleanliness and efficient operation.
Wipe surfaces with a damp cloth rinsed in water to remove
dust and dirt from the outside of the unit. Always rub with
the “grain” of the stainless steel to avoid marring the finish.
If a greasy residue persists, use a damp cloth rinsed in a
mild dish soap and water solution. Wipe dry with a clean,
soft cloth.
Never use steel wool or abrasive pads for cleaning. Never
use chlorinated, citrus based or abrasive cleaners.
Stainless steel exterior panels have a clear coating that
is stain resistant and easy to clean. Products containing
abrasives will damage the coating and scratch the panels.
Daily cleaning may be followed by an application of
stainless steel cleaner which will eliminate water spotting
and fingerprints. Early signs of stainless steel breakdown
are small pits and cracks. If this has begun, clean thoroughly
and start to apply stainless steel cleaners in attempt to
restore the steel.
Gasket Maintenance
Gaskets require daily cleaning to prevent mold and mildew
build up and also to retain the elasticity of the gasket.
Gasket cleaning can be done with the use of warm soapy
water. Avoid full strength cleaning products on gaskets as
this can cause them to become brittle and crack. Never use
sharp tools or knives to scrape or clean the gasket. Gaskets
can be easily replaced and do not require the use of tools
or an authorized service person. The gaskets are “Dart” style
and can be pulled out of the groove. Soak new gaskets in
warm water to make them more pliable. Dry and “press”
back into place.
Casters
Wipe casters with a damp cloth monthly to prevent
corrosion.
Defrosting
Milk or Ice Cream dispensers require defrosting after 3/8” of
frost forms. On/Off switch is located above the louver panel.
Never use sharp objects or tools to clean or scrape ice/frost
build up from the refrigerated cold pans. A puncture to the
pan could cause irreparable damage to the refrigeration
system.
CLEANING THE CONDENSER COIL
In order to maintain proper refrigeration performance, the
condenser fins must be cleaned of dust, dirt and grease
regularly. It is recommended that this be done monthly. If
conditions are such that the condenser is totally blocked
in a month, the frequency of cleaning should be increased.
Clean the condenser with a vacuum cleaner or stiff brush. If
extremely dirty, a commercially available condenser cleaner
may be required.
Failure to maintain a clean condenser coil can initially cause
high temperatures and excessive run times. Continuous
operation with a dirty or clogged condenser coil can
result in compressor failure. Neglecting the condenser coil
cleaning procedures will void any warranties associated
with the compressor and cost to replace the compressor.
DELFIELD
980 SOUTH ISABELLA ROAD, MOUNT PLEASANT, MI 48858
800-733-8821
WWW.DELFIELD.COM
To learn how Manitowoc Foodservice and its leading brands can equip you, visit our global web site at
www.manitowocfoodservice.com, then discover the regional or local resources available to you.
©2016 Manitowoc Foodservice except where explicitly stated otherwise. All rights reserved. Continuing product improvement may necessitate change of specications without notice.
Part Number: 9291482 05/16
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