Please read this manual completely before attempting to install or operate this equipment! Notify carrier of damage! Inspect all
components immediately.
Refrigerated Work Tables, Salad Tables & Freezer Bases
Important Information
Read Before Use
Please Save These Instructions!
February 2013
Page 2
F18 Series Service and Installation Manual
Important Warning And Safety Information
WARNING Read This Manual Thoroughly Before Operating, Installing, Or Performing Maintenance On The Equipment.
WARNING Failure To Follow Instructions In This Manual Can Cause Property Damage, Injury Or Death.
WARNING Do Not Store Or Use Gasoline Or Other Flammable Vapors Or Liquids In The Vicinity Of This Or Any Other
Appliance.
WARNING Unless All Cover And Access Panels Are In Place And Properly Secured, Do Not Operate This Equipment.
WARNING This Appliance Is Not Intended For Use By Persons Who Lack Experience Or Knowledge, Unless They Have
Been Given Supervision Or Instruction Concerning Use Of The Appliance By A Person Responsible For Their
Safety.
WARNING This Appliance Is Not To Be Played With.
WARNING Do Not Clean With Water Jet.
WARNING Do Not Use Electrical Appliances Inside The Food Storage Compartment Of This Appliance.
CAUTION Observe the following:
•Minimum clearances must be maintained from all walls and combustible materials.
•Keep the equipment area free and clear of combustible material.
•Allow adequate clearance for air openings.
•Operate equipment only on the type of electricity indicated on the specification plate.
Even though most equipment is shipped crated, care should be
taken during unloading so the equipment is not damaged while
being moved into the building.
1. Visually inspect the exterior of the package an skid or
container. Any damage should be noted and reported to
the delivering carrier immediately.
2. If damaged, open and inspect the contents with the carrier.
3. In the event that the exterior is not damaged, yet upon
opening, there is concealed damage to the equipment
notify the carrier. Notification should be made verbally as
well as in written form.
4. Request an inspection of the concealed equipment. This
should be done within 10 days from receipt of the
equipment.
5. Check the lower portion of the unit to be sure legs or
casters are not bent.
6. Also open the compressor compartment housing and
7. Freight carriers can supply the necessary forms upon
8. Retain all crating material until an inspection has been
Uncrating the Equipment
First cut and remove the banding from around the crate.
Remove the front of the crate material, use of some tools will
be required. If the unit is on legs remove the top of the crate as
well and lift the unit off the skid. If the unit is on casters it can
be "rolled" off the skid.
visually inspect the refrigeration package. Be sure lines are
secure and base is still intact.
The serial number on all self-contained F18 Series refrigerated
work tables and freezer bases is located on the electrical
specifications tag affixed inside the compressor section next
to the pressure control.
On remote refrigerated bases with doors, the tag is inside
the unit on the coil side. On remote refrigerated bases with
drawers, the tag is affixed to the drawer divider. On remote
freezer bases, the tag is located on the inside back of the unit.
Always have the serial number of your unit available when
calling for parts or service. A complete list of authorized
Delfield parts depots is available at www.delfield.com.
These units are intended for indoor use only. Be sure the
location chosen has a floor strong enough to support the
total weight of the cabinet and contents. A fully loaded 72”
(183cm) long model may weigh as much as 1500 pounds
(680kg)! Reinforce the floor as necessary to provide for
maximum loading.
It is very important to allow for proper air flow, both inside
and outside.
Avoid hot corners and locations near stoves, ovens and
other pieces of cooking equipment.
It is recommended that the unit be installed no
closer than 1” (2.54cm) from any wall. Do not
install the unit near any combustible material or
object affected by heat or moisture.
PDL models also require 14" (36cm) clearance
at the top and 6" (15cm) clearance at the bottom
(casters).
Leveling
A level cabinet looks better and will perform better because
the drain pan will drain properly, the doors will line up with
the frames properly, and the cabinet will not be subject to
undue strain.
A unit on legs will have an adjustable bullet foot on each
leg, adjust each for a level unit. A unit on casters will not
be adjustable. Be sure the unit is on a level floor, make
necessary changes to the floor for proper level.
Lock all front casters to ensure the stability of the unit.
Plumbing
Self-contained models are standard with a condensate evaporator.
If, for some reason a unit does not have a condensate evaporator,
or if the evaporator fails, the unit’s drain must have an outlet to
an appropriate drainage area or container. A refrigerated rail
will have a 1" (2.54cm) drain which will need to be run to an
appropriate floor drain or container. The drain will be stubbed
to the bottom of the machine compartment. Either run drain
to a floor drain or add a valve to the base of the machine
compartment and drain the rail to a container when convenient.
The LiquiTec option will NOT have a drain available.
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.
Electrical connection
Refer to the specification pages amperage data, the serial tag,
your local code or the National Electrical Code to be sure the unit
is connected to the proper power source. A protected circuit of
the correct voltage and amperage must be run for connection of
the line cord, or permanent connection of the unit.
Self-contained units with a cord and plug have an ON/OFF
switch located directly behind the louvered panel covering the
compressor section. Simply turn the switch to ON to begin
operation.
The power switch must be turned to OFF and
the unit disconnected from the power source
whenever performing service or maintenance
functions.
Never operate the unit without the louvered panel
in place!
If electrical receptacles are to be mounted in the unit’s
backsplash, they must be wired independently from the
existing unit wiring.
Power up the unit by turning ON the unit’s ON/OFF switch.
Delfield refrigerated bases are designed to maintain an
operational temperature of 36°F to 40°F (2°C to 4°C).
Temperature in the salad top and refrigerated rail opening is
33°F to 41°F (0°C to 5°C) with pans recessed 2” (5.1cm) on
a standard wrapped refrigerated rail or flush with the LiquiTec
option at 86°F (30°C) ambient room temperature.
Do not place hot pans on/against the blue ABS liner.
Do not throw items into the storage area. Failure
to heed these recommendations could result in
damage to the interior of the cabinet or to the
blower coil.
Overloading the storage area, restricting the air
flow, and continuous opening and closing of the
doors and drawers will hamper the units ability to
maintain operational temperature.
Refrigerated rail units
Product in the rail should be removed to the refrigerated base
at the end of the day. This allows you to turn the rail off at night
to save energy and the rail will have time to defrost as needed.
It also helps maintain product quality. The standard wrapped
refrigerated units are controlled by the pressure control which
is set to maintain the proper rail temperature. An on/off switch
is also provided for the rail and is required to be shut off at
night. The rail switch shuts off the rail only. With a LiquiTec rail
a thermostat is provided to maintain rail temperature as well as
the rail on/off switch. The LiquiTec rail is required to be shut
off at night as well to allow for defrosting. To ensure product
quality in the rail it is recommended that product be rotated
every four hours.
If adding any item to the unit, be sure to keep
in mind the location of the refrigeration lines on
wrapped rail units. A refrigeration leak in a rail
is extremely difficult and costly to repair. In some
cases it cannot be repaired at all.
Refrigerator Evaporator Fan Operation
When the refrigerator is initially powered up or immediately
following a power outage the unit will begin cooling after a 3-6
minute delay. During normal operation the evaporator fan pulses
independently of the compressor as dictated by the controller
as follows:
1. During the cooling mode, compressor and evaporator fan
run simultaneously.
2. During the compressor off mode, evaporator fan pulses
three minutes on and three minutes off.
3. During an actual defrost event other than the off-cycle
defrost, compressor stays off but the evaporator fan runs
continuously.
Cooling CycleDefrost Cycle
Compressor OnCompressor OffCompressor Off
Evap Fan OnEvap Fan
Off
X
Evap Fan OnEvap Fan
Off
Cycles On 3-Min, Off
3-Min
Evap Fan OnEvap Fan
Off
X
Freezer Operation
Power up the unit by turning ON the unit’s ON/OFF switch.
Delfield freezer bases are designed to maintain an operational
temperature of 0°F (-18°C).
Do not place hot pans on/against the blue ABS liner.
Do not throw items into the storage area. Failure
to heed these recommendations could result in
damage to the interior of the cabinet or to the
blower coil.
Overloading the storage area, restricting the air
flow, and continuous opening and closing of the
doors and drawers will hamper the units ability to
maintain operational temperature.
Freezer Evaporator Fan Operation
The evaporator fan(s) and condenser fan will cycle off and on with
the compressor to conserve energy. The temperature control will
cycle the compressor and condenser fan motor and evaporator
fan motor to maintain box temperature at the control setting.
Self-contained models use hot gas to defrost the evaporator coils.
Remote freezers use electric defrost.
9
Page 10
F18 Series Service and Installation Manual
Temperature Control Settings
A thermostat controls temperature in the self-contained
F18WC, F18FC, F18MC base, F18SC base, F18RC base,
F18DC base, F18PD base and F18PD rails.
Thermostats are located in the machine compartment. They
are field adjustable and do not require a service agent. The
factory setting is 2.5. Set toward 1 for higher temperatures
and toward 7 for lower temperatures.
A thermostat controls temperature in the remote F18FR. The
temperature control is located in the machine compartment.
It is field adjustable and does not require a service agent.
The factory setting for a remote freezer is 0°F cut-in with a
5°F differential.
Pressure Control Settings
A pressure control controls temperature in the F18MC
mega top, F18SC salad top, F18RC rail and F18DC rail.
The factory recommended low-pressure control settings
are: 55psi cut-in and 30psi cut-out to maintain proper
temperature for product. The interior temperature is
controlled by the thermostat mounted in the mechanical
compartment.
A pressure control is located in the machine compartment.
An adjustable control has the word COLDER on the knob,
with an arrow to indicate the adjustment direction. These
controls are field adjustable and do not require a service
agent.
In attempting to adjust the pressure control,
you can do damage to your unit by accidentally
adjusting the differential. Please make small
incremental adjustments if a temperature
adjustment is necessary. It may take an hour
or longer to realize the temperature change
depending on the application and location of the
unit.
Please contact the service department at Delfield
(800) 733-8829 or your local service agent.
Delfield is not responsible for charges incurred
while having the pressure control adjusted.
Please make small incremental adjustments if
a temperature adjustment is necessary. It may
take an hour or longer to realize the temperature
change depending on the application and location
of the unit.
Contact the service department at Delfield +1
(989) 773-7981 or your local service agent
for additional assistance. Delfield is not
responsible for charges incurred while adjusting
the thermostat.
Door gaskets require regular 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 in the door and new gaskets can
be “pressed” back into place.
Drain Maintenance - Base
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 in the
machine compartment. 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.
Drawer Maintenance
Drawer Assembly Cleaning
The drawer assembly is designed to be cleaned easily. Both drawer
and tracks are removable without tools. The drawer tracks are
dishwasher safe or can be cleaned in a sink with detergents and a
soft bristle brush. Drawers and tracks should be cleaned on a weekly
basis.
Remove Drawers
Pull the drawer box out until it stops. Lift up on the drawer front and
pull the drawer box completely out. Using a soft bristle brush, clean
the track on the bottom of the drawer box. When finished, it should
be wiped clean of all food and debris.
Tracks
The drawer box assembly must be removed. Pull the drawer tracks
out until they hit a stop. Locate blue safety clips towards the back
of each drawer track. Blue safety clips have a tab on the top. Push
the tab back until it clicks. Lift up and pull the drawer tracks all
the way out of the drawer
cage. The drawer tracks
are dishwasher safe or
can be cleaned in a sink
with detergents and a soft
tab on top of
blue safety clip
a soft bristle brush, wash the track making sure each roller is
thoroughly cleaned. The drawer cage should be cleaned with a soft
bristle brush, removing any food and debris gathered on the bottom
ledge. Once it’s cleaned thoroughly with a soft bristle brush, wipe
remaining debris clean with a soft towel.
bristle brush. Drawers and
tracks should be cleaned
on a weekly basis. Using
Reassembly
Push the drawer tracks into the drawer cage. The blue safety clip
must remain pushed towards the back. Lift up and slide the drawer
track all the way into the drawer cage. The blue safety clip will lock
in place automatically. Once all tracks are replaced, insert the drawer
box. Rest the drawer box bottom track on the front track roller. Then
push the drawer back in place SLOWLY. When the drawer box is about
half way in you will hit a STOP. You must lift the front of the drawer up
approximately ½” (1.3cm) to continue inward. Clean tracks as often
as possible. The cleaner the tracks are the better they will operate.
Caster Maintenance
Wipe casters with a damp cloth monthly to prevent corrosion.
The power switch must be turned to OFF and the
unit disconnected from the power source whenever
performing service, maintenance functions or cleaning
the refrigerated area.
Refrigerators and Freezers
The interior and exterior can be cleaned using soap and warm water.
If this isn’t sufficient, try ammonia and water or a nonabrasive liquid
cleaner. When cleaning the exterior, always rub with the “grain” of
the stainless steel to avoid marring the finish. Do not use an abrasive
cleaner because it will scratch the stainless steel and can damage the
breaker strips and gaskets.
Stainless Steel Care and Cleaning
To prevent discoloration of rust on stainless steel several important
steps need to be taken. First, we need to understand the properties
of stainless steel. Stainless steel contains 70- 80% iron, which will
rust. It also contains 12-30% chromium, which forms an invisible
passive film over the steels surface, which acts as a shield against
corrosion. As long as the protective layer is intact, the metal is still
stainless. If the film is broken or contaminated, outside elements
can begin to breakdown the steel and begin to form discoloration of
rust. Proper cleaning of stainless steel requires soft cloths or plastic
scouring pads.
NEVER USE STEEL PADS, WIRE BRUSHES OR SCRAPERS!
Cleaning solutions need to be alkaline based or non-chloride cleaners.
Any cleaner containing chlorides will damage the protective film of
the stainless steel. Chlorides are also commonly found in hard water,
salts, and household and industrial cleaners. If cleaners containing
chlorides are used be sure to rinse repeatedly and dry thoroughly.
Routine cleaning of stainless steel can be done with soap and water.
Extreme stains or grease should be cleaned with a non-abrasive
cleaner and plastic scrub pad. Always rub with the grain of the
steel. There are stainless steel cleaners available which can restore
and preserve the finish of the steels protective layer. 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 passivity of the steel.
Never use an acid based cleaning solution! Many food
products have an acidic content, which can deteriorate
the finish. Be sure to clean the stainless steel surfaces
of ALL food products. Common items include, tomatoes,
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 at least every three months.
If conditions are such that the condenser is totally blocked in three
months, 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.
Never use a high-pressure water wash for this cleaning
procedure as water can damage the electrical components
located near or at the condenser coil.
Doors/Hinges
Over time and with heavy use doors the hinges may become loose. If
this happens tighten the screws that mount the hinge brackets to the
frame of the unit. Loose or sagging doors can cause the hinges to pull
out of the frame, which may damage both the doors and the hinges. In
some cases this may require qualified service agents or maintenance
personnel to perform repairs.
Do not place hot pans on/against the blue ABS liner.
Do not throw items into the storage area. Failure to
follow these recommendations could result in damage
to the interior of the cabinet or to the blower coil.
Overloading the storage area, restricting the airflow,
and continuous opening and closing of the doors and
drawers will hamper the units ability to maintain
operational temperature.
Preventing blower coil corrosion
To help prevent corrosion of the blower coil, store all acidic items,
such as pickles and tomatoes, in sealable containers. Immediately
wipe up all spills.
Units with pans should be operated with pans in place.
Operating the unit without all pans in place will lower
efficiency and may damage the unit.
Continuous opening and closing of the doors will hamper the unit’s
ability to maintain optimum refrigeration temperature. Top section is
not intended for overnight storage. Product should be removed from
pans. Pans can remain in unit while empty.
Refrigerated rail units
Product in the rail should be removed to the refrigerated base at the
end of the day. This allows you to turn the rail off at night to save
energy and to defrost the rail. It also helps maintain product quality.
The standard wrapped refrigerated rail units are controlled by a lowpressure control that is set to maintain the proper rail temperature.
An on/off switch is also provided for the rail and is required to be shut
off at night. With a LiquiTec rail a thermostat is provided to maintain
rail temperature as well as the rail on/off switch. The LiquiTec rail
is required to be shut off at night as well to allow for defrosting. To
ensure product quality in the rail it is recommended that product be
rotated every four hours.
If adding any item to the unit, be sure to keep in mind
the location of the refrigeration lines on wrapped rail
units. A refrigeration leak in a rail is extremely difficult
and costly to repair. In some cases it cannot be repaired
correcting and end-user installation error will not be reimbursed under warranty unless pre-approved with a Service Work
Authorization from Delfield. You must submit the number with the service claim.
This includes recovery of refrigerant and leak check.
$55.00 maximum reimbursement for refrigerant recovery (includes recovery machine, pump, torch, oil, flux, minor fittings,