Hussmann SM Operation Manual

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M SERIES
l
Spot
Dual Temperature Merchandisers
Installation &
Operation
Manua
Shipped With Case Data Sheets
P/N 2402398 A
October, 2003
HUSSMANN – CORPORATION Hussmann Monterrey Mexico Carretera Mexico-Laredo KM. 1009 Cienga de Flores, Nuevo Leon 65550 Mexico Ph: (52) 81-8318-6400 Fax: (52) 81-8318-6496
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Table of Contents
SHIPPING DAMAGE
General 1-1 Apparent Loss or Damage 1-1 Concealed Loss or Damage 1-1 Location 1-1
PREPARATION OF CABINET FOR OPERATION
Removing Cabinet from Skid 2-1 Door installation (SN Models) 2-1 Operation 2-1 Load Limit 2-1
REFRIGERATION SYSTEM
Description 3-1 Defrosting Instructions 3-1
START UP / OPERATION
Electrical Supply 4-1 Temperature Control 4-1 High Pressure Switch 4-1 Draining
MAINTENANCE
Maintenance 5-1 Cabinet Surfaces 5-1 Condenser 5-1
WARRANTY
P/N 2402398
KEEP THIS MANUAL FOR FUTURE REFERENCE
Quality that sets industry standards
IMPORTANT
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SHIPPING DAMAGE
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P/N 2402398
1-1
General
ll equipment should be thoroughly examined for shipping damage before and during unloading.
This equipment has been carefully inspected at our factory and the carrie has assumed responsibility for safe arrival. If damaged, either apparent o concealed, claim must be made to the carrier.
Apparent Loss Or Damage
If there is an obvious loss or damage, it must be noted on the freight bill o express receipt and signed by the carrier's agent; otherwise, carrier may refuse claim. The carrier will supply necessary forms.
Concealed Loss Or Damage
When loss or damage is not apparent until after equipment is uncrated, a claim for concealed damage is made. Upon discovering damage, make request in writing to carrier fo inspection within 15 days and retain all packing. The carrier will supply inspection report and required claim forms.
Location
The SN Models (with glass tops) are designed for indoor operation with a recommended operating room maximum ambient temperature range of 65 to 90°F (18-32°C)/50-65% rh. The SM models (open tops) are designed for indoo operation with a recommended operating room maximum ambient temperature o 75° F (24°C)/55% rh. Their performance is affected by store air currents when the doors are open. Do NOT allow ai conditioning, electric fans, or open doors and windows to create air currents around these Spot Merchandisers no should they be exposed to direct sunlight or other heat sources.
NOTE: The condensing unit draws ambient air through on side of the unit and discharges hot air out by the opposite side. In order to maintain prope refrigeration performance and compressor life, a minimum space of 4" (10 cm) must be maintained between the refrigerator and surrounding surfaces.
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PREPARATION OF CABINET FOR OPERATION
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Removing Cabinet From Skid
Move the Spot Merchandiser as close as possible to its permanent location and remove hold-down brackets at the front and rear of the cabinet. Chec refrigeration lines to see that they are “free” and no damage has occurred during shipping . Check fan blades fo free operation.
Door Installation ( SN Models)
fter the merchandiser has been placed to its final position, the doors may be installed. The doors must be positioned inside of each guide to have a good seal.
Operation
lways allow the cabinet to warm up to 65° F before starting the unit. If the cabinet has just been delivered from a cold ambient, such as winter, wait least 16 hours before starting.
P/N 2402398
2-1
Should the unit be disconnected when running, wait 5 minutes before restarting. This allows the refrigerant pressures to equalize and prevents the compresso from cycling on its overload protector.
It is advisable to run the unit for 30 to 60 minutes before loading with merchandise. This is to allow the air inside the Spot Merchandiser to cool down.
Load Limits
Each merchandiser has a load limit decal.
t no time should merchandiser be stocked beyond the load limits indicated. If load limit is violated, it may result in loss of contents.
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REFRIGERATION SYSTEM
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P/N 2402398
3-1
Description
ll Merchandisers are equipped with a hermetic compressor. The refrigeration system works with 404a refrigerant. It is really important not to change or mi refrigerants during service. If anothe refrigerant than the specified is used, the performance of the case will be affected.
The refrigerant used is CFC free, that means it does not damage the stratosphere ozone layer.
The condenser is fin and tube construction. The air is taken in at one side of the cabinet through the lowe grill and discharged out by the opposite side.
Cooling is accomplished by the ambient created by the cold walls.
Defrosting Instructions
When defrosting is necessary, remove product, remove drain plug, disconnect electricity and allow frost to melt.
Do not remove frost with a pick, knife o by scraping with a sharp object.
Collect the water from defrost in a pan. DO NOT allow the water to drain on to the floor.
When the unit is finished defrosting, clean the inside as described in section
4.1, install the plug on the drain tube and connect the unit to the correct powe supply.
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START UP / OPERATION
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Electrical Supply
WARNING
Wiring of the unit is complete when it is shipped from the factory. The unit is supplied with a three conducto electrical cord which extends from a side of the unit. Plug the unit into correct grounded outlet. It is recommended that a separate circuit be run for each cabinet to prevent the possibility of another appliance blowing a fuse, causing subsequent loss o product.
Temperature Control IMPORTANT
This unit has dual temperature range freezer / refrigerator. For refrigerator mode, turn UP toggle switch. For freezer mode, turn DOWN toggle switch. This switch is located below the warning light. You can change the temperature range (freezer / refrigerator, or refrigerator / freezer) without turning off the condenser unit.
The flow of room air over the top of the Spot Merchandiser should be minimized for best refrigerating results. Avoid placing your Spot Merchandiser in the direct rays of the sun or in the air stream from electric fans or open doorways.
P/N 2402398
4-1
High Pressure Switch
high pressure limit switch is provided on all Spot Merchandiser Models. This switch is used to limit the discharge pressure of the compressor.
This switch will automatically cycle off the compressor and turn on a warning light on the base, when the discharge pressure in the system is too high.
If this condition occurs, first clean the condenser. If the warning light continues to illuminate, call service.
This pressure switch is a safety device and will not function during normal case operation. Do NOT remove it from the system.
Draining
The case is equipped with a bottom drain tube and a plug for removing wate during defrost and cleaning process. Keep the plug connected to avoid ai leaks.
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MAINTENANC
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Maintenance Long life and satisfactory performance of any equipment is dependent upon the care given to it. To insure efficient operation, proper sanitation and minimum maintenance, the cabinet should be thoroughly cleaned, debris removed and the interior cleaned regularly.
CAUTION
TO AVOID PERSONAL INJURY OR
DAMAGE TO ELECTRICAL
COMPONENTS, ALWAYS
DISCONNECT UNIT FROM MAIN
POWER SOURCE BEFORE
SERVICING OR CLEANING.
Cabinet Surfaces (Interior and Exterior)
To preserve finish, the cabinet should be cleaned with a mild solution of soap and warm water only, using a soft cloth or sponge. The white plastic top is made of a tough ABS plastic. It is strong, clean and durable. It can be cleaned by wiping with a damp cloth and, if necessary, a cleaner such as Bon Ami could de used. DO NOT use any type of caustic soap, abrasive cleaner, or steel wool scouring pads which can mar the cabinet finish.
The inside of your Spot Merchandise has been coated for long life. It will give many years of trouble free service. Never use a sharp instrument to chip of frost as this may damage the liner.
Condenser
The air cooled condenser should be cleaned regularly. A dirty condense restricts air flow,
P/N 2402398
5-1
causing decreased refrigeration efficiency. (Clean every month or as required).
1) With main power supply disconnected, remove louver grill from front of lowe cabinet. Most dirt will collect on the ai intake side of the condenser. This is opposite the fan motor.
2) Use a bristle brush to loosen the dust and dirt and remove with a vacuum cleaner. When cleaning condenser line beware of fin edges as they are sharp.
3) If the Spot Merchandiser is located in an area susceptible to grease collecting on the condenser, scrub with a solution of warm water and detergent. Care should be taken to keep solution away from wiring and electrical components.
Merchandiser Electrical Data
Spot Merchandiser data sheets are attached to the back of this manual. The data sheets provide case electrical data, electrical schematics, parts lists and performance data. Refer to the Spot Merchandiser data sheets and case serial plate for electrical information.
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M SERIES
Spot
This warranty is made to the original purchaser-user and is NOT TRANSFERABLE.
WARRANTIES:
FIRST YEAR: Hussmann Corporation warrants new Hussmann equipment and all parts thereof to be free from defects in material and workmanship at the time o purchase. Hussmann’s obligation under this warranty shall be limited to repairing or exchanging, at its option, any part or parts, without change F.O.B. factory o nearest authorized parts depot, which may prove defective within one year from date of original installation (not to exceed fifteen (15) months from date of shipment from the factory), and wich is proven to the satisfaction of Hussmann to be thus defective.
DITIONAL FOUR YEARS: Hussmann agrees to repair or replace at its option, Hussmann equipment determined through its inspection to have an inherent foam insulation failure or refrigerant leak within such insulation area for period of live (5) years from date of factory shipment. In addition, Hussmann agrees to repair o exchange, at its option, the original Motor Compressor Unit only with a compressor of like or of similar desing and capacity if it is shown to the satisfaction of Hussmann that the Motor Compressor is inoperative due defects in factory workmanship or material under normal use and service as outlined in Hussmann’s “Installation Instructions” which are shipped inside new Hussmann equipment. Hussmann’s sole obligation under this warrant shall be limited to a period not to exceed five (5) years from date of factory shipment. The term “Motor Compressor Unit” does not include electric controls; such as relays, capacitors, pressure controls, or fan motor assembly, condenser, receiver, etc. The warranty does not include any equipment to wich the Motor Compressor Unit is connected such as cooling coils, temperature controls, refrigerant metering devices, etc.
The warranties to repair or replace above recited, are the only warranties, expressed, implied, or statutory, made by Hussmann with respect to Hussmann equipment. Hussmann makes no express or implied warranties as to merchantability or fitness for a particular purpose or use. Hussmann neither assumes, not authorizes any person to assume for it, any other obligation or liability on connection with the sale of said equipment or any part thereof.
EXCLUSIONS:
1. There is NO warranty against breakage of glass.
2. THIS WARRANTY SHALL NOT APPLY TO LOSS OF FOOD OR CONTENTS OF THIS EQUIPMENT DUE TO FAILURE FOR ANY REASON.
3. Hussmann Corporation SHALL NOT BE LIABLE:
) For any repairs or replacements made by buyer without the written consent of Hussmann or when equipment is installed or operated in a manne contrary to the printed instructions covering installation and service wich accompanied. B) For any damage, delays, or losses, direct or consequential, caused by defects, nor for damage caused by shortages or reduced supply of material, fire, flood, strikes, acts of God, or circumstances beyond its control. C) When the failure or defect of the equipment or of any part or parts is incident to ordinary wear, accident (including accident occurring in transit), abuse or misuse; or when the serial number of the equipment has been removed, defaced, altered, or tampered with. D) When this equipment is operated on low or improper voltage, or is put to a use other than normally recommended by Hussmann, such as remoting self-contained equipment. E) Toward payment of any removal or installation charges of warranted parts and equipment or for transportation charges in connection therewith.
Hussmann Corporation
LIMITED WARRANTY
HUSSMANN –
CORPORATION
Monterrey Mexico
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