Please read this manual completely before attempting to install or operate this equipment! Notify carrier of
damage! Inspect all components immediately. See page 2.
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 and 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
The serial number of all self-contained 6000XL Series
refrigerators and freezers is located above the door under the
shroud.
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.
This manual covers standard units only. If you have a custom
unit, consult the customer service department at the number
listed below.
4. Request an inspection by the shipping company of the
5. Be certain to check the compressor compartment
6. Freight carriers can supply the necessary damage forms
7. Retain all crating material until an inspection has been
SERIAL NUMBER INFORMATION
as well as in written form.
damaged equipment. This should be done within 10
days from receipt of the equipment.
housing and visually inspect the refrigeration package.
Be sure lines are secure and base is still intact.
upon request.
made or waived.
NOTE: Upon powering unit, there could be up to a
10 minute delay before unit begins to cool.
Units represented in this manual 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 6000XL series can weigh as much as 1500 pounds.
Reinforce the floor as necessary to provide for maximum
loading. For the most efficient refrigeration, be sure to provide
good air circulation inside and out.
Inside cabinet: Do not pack refrigerator so full that air
cannot circulate. The refrigerated air is discharged at the top
rear of the unit. It is important to allow for proper air flow
from the top rear to the bottom of the unit. Obstructions to
this air flow can cause evaporator coil freeze ups and loss of
temperature or overflow of water from the evaporator drain
pan. The rear of the unit has molded ribs and the shelves
have a rear turn up on them to
prevent this. However, bags and
other items can still be located to
the far rear of the cabinet. There is
also a return air diffuser along the
top front of the cabinet interior, this
also requires proper air circulation.
Prevent obstruction by locating large
boxes and tall stacks of product to
the bottom of the cabinet.
Outside cabinet: Be sure that the
unit has access to ample air. Avoid
hot corners and locations near
stoves and ovens.
It is recommended that the unit be installed no closer than 2”
from any wall with at least 12” of clear space above the unit.
Avoid exposing glass door units to direct sunlight. Direct
sunlight through the glass doors will make the ABS liner
fade and become brittle and will greatly reduce refrigeration
efficiency.
Leveling
A level cabinet looks better and will perform better because
the doors will line up with the frames properly, the cabinet will
not be subject to undue strain and the contents of the cabinet
will not move around on the shelves. Use a level to make sure
the unit is level from front to back and side to side. Units
supplied with legs will have adjustable bullet feet to make the
necessary adjustments. If the unit is supplied with casters, no
adjustments are available. Ensure the floor where the unit is to
be located is level.
Stabilizing
Some models are supplied on casters for your convenience,
ease of cleaning underneath and for mobility. It is very
important, however, that the cabinet be installed in a stable
condition with the front wheels locked while in use.
Should it become necessary to lay the unit on its side or back
for any reason, allow at least 24 hours before start-up so as to
allow compressor oil to flow back to the sump. Failure to meet
this requirement can cause compressor failure and unit damage.
Unit repairs will not be subject to standard
unit warranties due to improper installation
procedures.
Electrical connection
Refer to the amperage data on page 3, 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 con nec tion
of the line cord, or permanent connection to the unit.
The thermostat must be turned to OFF and
the unit disconnected from the power source
whenever performing service, maintenance
functions or cleaning the refrigerated area.
Door Reversal Procedure 6000XL
Edge-Mount Hinge
1. Open door 90˚and lift door staight up and off hinges.
2. Remove the plastic screw covers on each hinge section by
prying out with a thin screwdriver.
3. Removve two outer screws that mount each hinge to door,
loosen the center screw, rotate hinge 180˚, reinstall outer
screws and retighten center screw.
4. Remove two screws that mount lock on top of door, turn
door up-side-down and remount lock to top of door.
5. Remove the hinges from the cabinet face frame.
6. Remove the stainless steel screws at the new hinge locations and install them where the hinge was removed from the
cabinet.
7. Using the screws removed in step 5, attach the hinges to
the new location on the cabinet face frame.
8. Remove the plastic cam from the hinges by pulling straight
up, then rotating the cam 180˚ and pushing back into the
hinge.
9. Reinstall the plastic screw covers removed in step 2.
The electronic temperature control constantly monitors box
temperature as well as evaporator coil temperature to maintain
consistent product temperatures. The control also sends
temperature readings to the digital temperature display. The
control circuits continually self-check and if an error occurs,
the digital display will switch from temperature read-out to
error read-out, i.e. E 1. Even when an error is displayed, the
refrigeration and controls system should continue to function,
however not at optimal performance. Whenever the display
has an error read-out, Delfield Service should be contacted.
At initial start-up or anytime power is disconnected, then
reconnected to the unit, the control will delay all operations for
a short time (up to 10 minutes.) While in this delay period,
the control initializes the control parameters and confirms
that the temperature sensors and circuits are operational.
The digital temperature display will not display temperature
OR errors until the self-check is complete and the control
has switched on the evaporator fan motor, compressor and
condenser fan motor.
Refrigerator:
The control is located in the control box in the top of the
refrigerator behind the removable louvered panel on the left
side. It is factory set at mid-range to maintain about 38˚F
(3˚C) box temperature. To adjust for colder temperatures,
turn the knob clockwise. For warmer temperatures, turn the
knob counter-clockwise. Turn the knob fully counter-clockwise
to turn the refrigeration system off. Never turn the knob more
than 1 dial number and always allow 8 hours for temperature
stabilization before making any additional adjustments.
Freezer:
The control is located in the control box in the top of the
refrigerator behind the removable louvered panel on the left
side. It is factory set at mid-range to maintain about -3˚F
(-18˚C) box temperature. To adjust for colder temperatures,
turn the knob clockwise. For warmer temperatures, turn the
knob counter-clockwise. Turn the knob fully counter-clockwise
to turn the refrigeration system off. Never turn the knob more
than 1 dial number and always allow 8 hours for temperature
stabilization before making any additional adjustments.
Energy Saver Switch
The energy saver switch is a rocker switch located next to
the thermostat knob. The switch controls power to the frame
heater to minimize condensation around the door opening.
Press the switch to the “0” position to conserve energy. If
excessive condensation is observed on the door opening,
press the switch to the “-” position, (red portion of the rocker
will be visible).
6000XL Series Service and Installation Manual
Refrigeration & Defrost Cycle
Refrigerator:
Whenever the refrigerator is plugged in, and the control
has completed initializing, the evaporator fans will run
continuously and the digital temperature will display box
temperature in degrees F. The temperature control will cycle
the compressor and condenser fan motor to maintain box
temperature at the control setting.
Refrigerator Defrost
The temperature control also monitors the evaporator
temperature and will turn off the compressor and condenser
fan motor when needed to allow accumulated frost on the
evaporator to clear. During this defrost cycle, the digital
temperature display will read dEF. After the defrost cycle is
complete, the temperature control will return to a normal
cooling cycle, but the display will continue to read dEF until
the evaporator returns to normal cooling temperatures (up to
30 minutes).
Freezer:
Whenever the freezer is plugged in, and the control
has completed initializing, the evaporator fans will run
continuously. After evaporator coil has reached operational
temperature, the digital temperature will display box
temperature in degrees F. The temperature control will cycle
the compressor and condenser fan motor to maintain box
temperature at the control setting.
Freezer Defrost
The control also monitors compressor total running time
and will enter a defrost cycle after total compressor running
time is greater than 4-hours since the last defrost cycle OR
if evaporator coil temperature drops below -34˚F (indicating
excessive frost on the coil).
When the control enters the defrost mode, it switches OFF the
evaporator fan motor, compressor, and condenser fan motor,
and switches ON the defrost heater to warm the evaporator
coil thereby melting all frost accumulated during the previous
refrigeration cycle. The digital temperature display will now
read dEF. The control will continue the defrost cycle for a
MINIMUM of 8 minutes and a MAXIMUM of 30 minutes
depending on the amount of frost accumulated on the
evaporator coil.
After the defrost cycle is complete, the control returns to a
normal refrigeration cycle, however the evaporator fan motor
will not switch on for 2 minutes AFTER the compressor and
condenser fan motor have begun operating. The digital
temperature display will continue to read dEF until the
evaporator has returned to normal freezing temperatures (up
to 30 minutes).
The thermostat 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 plastic and can damage the breaker strips
and gaskets.
Cleaning the Condenser Coil
The condenser coil requires regular cleaning, recommended
is every 90 days. In some instances though you may find
that there is a large amount of debris and dust or grease
accumulated prior to the 90 day time frame. In these cases the
condenser coil should be cleaned every 30 days.
If the build up on the coil consists of only light dust and debris
the condenser coil can be cleaned with a simple brush, heavier
dust build up may require a vacuum or even compressed air to
blow through the condenser coil.
If heavy grease is present there are de-greasing agents
available for refrigeration use and specifically for the condenser
coils. The condenser coil may require a spray with the degreasing agent and then blown through with compressed air.
Stainless Steel Care and Cleaning
To prevent discoloration or 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 rust of discoloration.
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 upon
completion.
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. It is always good
to rub with the grain of the steel. There are also stainless steel
cleaners available which can restore and preserve the finish of
the steels protective layer.
Failure to maintain a clean condenser coil can initially cause
high temperatures and excessive run times, continuous
operation with dirty or clogged condenser coils can result in
compressor failures. Neglecting the condenser coil cleaning
procedures will void any warranties associated with the
compressor or 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.
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.
Early signs of stainless steel breakdown can consist of 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,
peppers and other vegetables.
Page 7
Delfield
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®
MAINTENANCE CONTINUED
If your freezer seems to vibrate excessively
when the compressor is running, loosen (but do
not remove) the bolts on the compressor. Semi
hermetic models should be loosened before
operating.
BASIC MAINTENANCE
Gasket Maintenance
Gaskets require regular cleaning to prevent mold and mildew
build up and also to keep 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 prevent proper seals. Also, never
use sharp tools or knives to scrape or clean the gasket which
could possibly tear the gasket and rip the bellows.
Gaskets can easily be replaced and do not require the use of
tools or authorized service persons. The gaskets are “Dart”
style and can be pulled out of the grove in the door and new
gaskets can be “pressed” back into place.
Doors/Hinges
Over time and with heavy use doors the hinges may become
loose. If it is noticed that the door is beginning to sag, it may
become necessary to tighten the screws that mount the hinge
brackets to the frame of the unit. If the doors are loose or
sagging this can cause the hinge to pull out of the frame which
may damage both the doors and the door hinges. In some
cases this can require qualified service agents or maintenance
personnel.
6000XL Series Service and Installation Manual
Drain Maintenance
Each unit has a drain located inside the unit which removes
the condensation from the evaporator coil and evaporates it
at an external condensate evaporator pan. Each drain can
become loose or disconnected from moving or bumping the
drain. If you notice excessive water accumulation on the
inside of the unit be sure the drain tube is connected from
the evaporator housing to the condensate evaporator drain
pan. If water is collected underneath the unit you may want
to check the condensate evaporator drain tube to be sure it
is still located inside the drain pan. The leveling of the unit is
important as the units are designed to drain properly when
on a level surface, if your floor is not level this can also cause
drain problems. Be sure all drain lines are free of obstructions,
typically food product is found blocking drain lines causing
water to back up and overflow the drain pans.
* For remote units, one & two section units require (1) solenoid
valve, part # 3516041.
Three section units require (2) solenoid valves, part #3516041.
Page 15
Delfield
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®
REFRIGERATION PACKAGE - PARTS LIST
6000XL Series Service and Installation Manual
Refrigerator - Two section
Item NumberPart Number50Hz Part#Description
2 (kit)2194782KT2194988Control, ETC1, Kit
32190154Switch, energy saver
42184181Cord, power
521627152192719Motor, fan, evaporator
63516274Fan blade, evaporator
13516437Coil, evaporator
73516429Valve, refrigerant, TXV
83516205Clip, TXV bulb mounting
Relay and capacitor, compressor
start, 125MFD
Compressor,50Hz - Sc18CLX.2,
danfoss
50Hz Capacitor, start, 125MFD,
Danfoss p/n
For 3-section units, the left package (when facing the unit) is identical to the 1-section and
the right package is identical to the 2-section. This applies to both refrigerator and freezer.
* For remote units, one & two section units require (1)
solenoid valve, part # 3516041.
Three section units require (2) solenoid valves, part
#3516041.
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.
$35.00 maximum reimbursement for refrigerant recovery (includes recovery machine, pump, torch, oil, flux, minor fittings,
Delfield warrants to the original purchaser-user, subject to the
limitations and exclusions set forth below, that the ABS interior of the
Delfield models identified above will be free of manufactured defects
for as long as the equipment is owned by the original purchaser-user
and is in operation.
What is covered.
The interior liner of the 6000XL Series refrigerators are covered
against manufactured defects under normal use. For purposes of
this Warranty, interior liner is defined as the portion of the interior
liner which is made of ABS material. This warranty applies only to
products sold and installed after March 1, 2000 in the United States,
Canada, Puerto Rico, and Mexico. For purposes of this warranty,
lifetime is defined as the expected usable life for the equipment of 12
years.
Delfield’s Obligation
Limited strictly to shipping OEM replacement parts or repair kits
for any covered ABS interior. A Delfield authorized service dealer
and Delfield’s Service Department must confirm the liner defect
has occurred under normal conditions and is not due to misuse
as defined below. All decisions regarding the ABS interior shall be
made by Delfield’s Service Department and shall be binding upon
the parties. No labor or service charges or allowances are covered
by this warranty. Warranty service must be performed by a Delfield
approved authorized service agent.
User Responsibility
The product must be installed, cleaned and maintained as described
in the Service and Installation manual which is furnished with the
product. Only approved replacement parts may be used. Failure
to adhere to the requirements of this paragraph may void warranty
coverage.
Exclusions
This warranty does not cover labor, service, charges for travel time,
mileage, or premium charges. This warranty also does not include
defects resulting from:
This warranty is in lieu of all other warranties or guarantees of
any kind, express or implied, except Delfield’s One Year Parts
and One year Labor Warranty. ANY IMPLIED WARRANTIES OR
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
ARE HEREBY DISCLAIMED AND EXCLUDED. IN NO EVENT SHALL
DELFIELD BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES OF ANY KIND OR NATURE, OR FOR ANY DEFECT
RESULTING IN WHOLE OR IN PART FROM MISUSE, ALTERATION,
IMPROPER INSTALLATION OR INADEQUATE MAINTENANCE OF THE
PRODUCT OR ANY PART THEREOF.
No part or assembly which has been subject to accident, alteration
or misuse, or which has not been installed or serviced in accordance
with the Operation Manual furnished with the product, or which is
from equipment on which the serial number has been altered or
removed, shall be covered by this warranty.
Procedures
All claims for replacement parts or repair kits must be made through
a Delfield Parts Depot or an authorized Delfield dealer. The defective
part invoice must be returned to Delfield within 15 days after the
date of service to be eligible for warranty coverage. All claims
must include the model number, serial number, an original date of
installation and customer identification. Use of parts other than
original Delfield replacement parts will not be covered.
STANDARD ONE YEAR WARRANTY (ONE YEAR PARTS AND LABOR.)
The Delfield Company (“Delfield”) warrants to the Original Purchaser
of the Delfield product (herein called the “Unit”) that such Unit, and all
parts thereof, will be free from defects in material and workmanship
under normal use and service for a period of one (1) year from
the date of shipment of the Unit to the Original Purchaser or, if the
Original Purchaser returns the warranty card completely filled out
including the date of installation within thirty (30) days of receipt
of the Unit, one (1) year from the date of installation. During this
one year warranty period, Delfield will repair or replace any defective
part or portion there of returned to Delfield by the Original Purchaser
which Delfield determines was defective due to faulty material or
workmanship. The Original purchaser will pay all labor, crating, freight
and related costs incurred in the removal of the Unit of defective
component and shipment to Delfield, except that during a period of
either ninety (90) days from the date of shipment of the Unit to the
Original Purchaser or, if the Original Purchaser returns the warranty
card completely filled out including the date of installation within thirty
(30) days of receipt of the Unit, ninety (90) days from the date of
installation Delfield will pay all related labor costs. Delfield will pay the
return costs if the Unit or part thereof was defective.
The term “Original Purchaser” as used herein means that person, firm,
association, or corporation for whom the Unit was originally installed.
This warranty does not apply to any Unit or part thereof that has
been subjected to misuse, neglect, alteration, or accident, such as
accidental damage to the exterior finish, operated contrary to the
recommendations specified by Delfield; or repaired or altered by anyone
other than Delfield in any way so as to, in Delfield’s sole judgement,
affect its quality or efficiency. This warranty does not apply to any Unit
that has been moved from the location where it was originally installed.
This warranty also does not cover the refrigerator drier or the light
bulbs used in the Unit. The warranty is subject to the user’s normal
maintenance and care responsibility as set forth in the Service and
Installation Manual, such as cleaning the condenser coil, and is in
lieu of all other obligations of Delfield. Delfield neither assumes, nor
authorizes any other person to assume for Delfield, any other liability
in connection with Delfield’s products.
basis, with credit being issued after the part has been received and
inspected at Delfield’s plant and determined by Delfield to be within this
warranty.
Under no condition does this warranty give the Original Purchaser the
right to replace the defective Unit with a complete Unit of the same
manufacturer or of another make. Unless authorized by Delfield in
writing, this warranty does not permit the replacement of any part,
including the motor-compressor, to be made with the part of another
make or manufacturer.
No claims can be made under this warranty for spoilage of any products
for any reason, including system failure.
The installation contractor shall be responsible for building access,
entrance and field conditions to insure sufficient clearance to allow any
hood(s), vent(s), or Unit(s) if necessary, to be brought into the building.
Delfield will not be responsible for structural changes or damages
incurred during installation of the Unit or any exhaust system.
Delfield shall not be liable in any manner for any default or delay in
performance hereunder caused by or resulting from any contingency
beyond Delfield’s control, including, but not limited to, war,
governmental restrictions or restraints, strike, lockouts, injunctions,
fire, flood, acts of nature, short or reduced supply of raw materials, or
discontinuance of the parts by the original part manufacturer.
Except as provided in any Additional Four Year Protection Plan,
if applicable, and the Service Labor Contract, if applicable, the
foregoing is exclusive and in lieu of all other warranties, whether
written or oral, express or implied. This warranty supersedes
and excludes any prior oral or written representations or
warranties. Delfield expressly disclaims any implied warranties
of merchantability, fitness for a particular purpose of compliance
with any law, treaty, rule or regulation relating to the discharge of
substances into the environment. The sole and exclusive remedies
of any person relating to the Unit, and the full liability of Delfield for
any breach of this warranty, will be as provided in this warranty.
Removal or defacement of the original Serial Number or Model Number
from any Unit shall be deemed to release Delfield from all obligations
hereunder or any other obligations, express or implied.
Parts furnished by suppliers to Delfield are guaranteed by Delfield only
to the extent of the original manufacturer’s express warranty to Delfield.
Failure of the Original Purchaser to receive such manufacturer’s express
warranty to Delfield. Failure of the Original Purchaser to receive such
manufacturers warranty shall in no way create any warranty, expressed
or implied, or any other obligation or liability on Delfield’s part in respect
thereof.
IF THE CUSTOMER IS USING A PART THAT RESULTS IN A VOIDED
WARRANTY AND A DELFIELD AUTHORIZED REPRESENTATIVE
TRAVELS TO THE INSTALLATION ADDRESS TO PERFORM WARRANTY
SERVICE, THE SERVICE REPRESENTATIVE WILL ADVISE CUSTOMER
THE WARRANTY IS VOID. SUCH SERVICE CALLS WILL BE BILLED
TO CUSTOMER AT THE AUTHORIZED SERVICE CENTER’S THEN
APPLICABLE TIME AND MATERIALS RATES. CONSIDER: CUSTOMER
MAY INITIATE A SERVICE AGREEMENT WITHOUT PARTS COVERAGE.
If shipment of a replacement part is requested prior to the arrival in
the Delfield factory of the part claimed to be defective, the Original
Purchaser must accept delivery of the replacement part of a C.O.D.
Other than this Delfield Standard One Year Limited Warranty, any
applicable Delfield Additional Four Year Protection Plan or applicable
Delfield Service Labor Contract, the Original Purchaser agrees and
acknowledges that no other warranties are offered or provided in
connection with or for the unit or any other part thereof.
In no event will Delfield be liable for special, incidental or consequential
damages, or for damages in the nature of penalties.
IF DURING THE WARRANTY PERIOD, CUSTOMER USES A PART FOR
THIS DELFIELD EQUIPMENT OTHER THAN AN UNMODIFIED NEW
OR RECYCLED PART PURCHASED DIRECTLY FROM DELFIELD OR
ANY OF ITS AUTHORIZED SERVICE CENTERS AND/OR THE PART
BEING USED IS MODIFIED FROM ITS ORIGINAL CONFIGURATION,
THIS WARRANTY WILL BE VOID. FURTHER, DELFIELD AND ITS
AFFILIATES WILL NOT BE LIABLE FOR ANY CLAIMS DAMAGES OR
EXPENSES INCURRED BY THE CUSTOMER WHICH ARISE DIRECTLY
OR INDIRECTLY, IN WHOLE OR IN PART, DUE TO THE INSTALLATION
OF ANY MODIFIED PART AND/OR PART RECEIVED FROM AN
UNAUTHORIZED SERVICE CENTER. If the warranty becomes void,
Customer may purchase from Delfield, if available, a Service
Agreement or service at the then current time and materials rate.
For more information on Delfield warranty’s log on and check out the
service section of our web site at www.delfield.com.