INTRODUCTION GENERAL INFORMATION Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 This technical manual provides information for the installation, operation, maintenance, and inspection of this unit manufactured by Middleby. A complete parts breakdown is also provided. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY SAFETY NOTICES DANGER EXPLOSION HAZARD If gas odor is detected, shut down equipment at the main shutoff valve. Immediately call the emergency phone number of your gas supplier. DANGER This symbol warns of immediate hazards which WILL result in severe injury or death. WARNING This symbol refers to a potential hazard or unsafe practice which COULD result in injury or death.
OPERATION INTRODUCTION This model is a heavy-duty piece of equipment designed for continuous use. It incorporates automatic controls to regulate the cycling of the refrigeration system. CONTROLS AND INDICATORS Table 2.1 - Controls and Indicators NAME TYPE Thermostat FUNCTION Contact Points Cycles the refrigerator system (automatic) START-UP PROCEDURE The refrigeration system is to be remotely located from the refrigerated cabinet.
OPERATION PREPARATION FOR AN EXTENDED PERIOD OF INACTIVITY This unit is designed for continued use at automatically cycled intervals. However, in the event of an extended shut down, both the mechanical refrigeration system and the food storage compartment system must be serviced. Table 2.4 - Shut Down Procedures for an Extended Period Operation Results 1. Fully close discharge valve at the receiver. Compressor will pump liquid refrigerant from system to receiver. 2.
SCHEDULED MAINTENANCE INTRODUCTION WARNING The system should be de-energized when checking for leaks. To ensure the longest and most trouble free operation of the unit, a thorough maintenance schedule is required to be adhered to periodically. The maintenance system should be designed to maximize the efficient use of maintenance personnel, reduce down time, and provide the orderly acquisition of spare parts support. i.
SCHEDULED MAINTENANCE Annual Maintenance 1. Check all refrigerant lines for leaks or fatigue. Make certain that no exposed copper tubing is in contact with any other metal surface. If there is contact, install an insulating material between the two metal components. 2. With the breaker at the main panel “OFF”, inspect the system’s wiring. Look for a tight fit of all connections and make certain that the wire restraining devices are tight.
SCHEDULED MAINTENANCE Table 4.1 - Preventative Maintenance Action Index 1. Weekly a. Inspect condenser coili to make certain that air flow is not hampered and that it is clear of dust and debris. 2. Monthly a. Inspect and clear drain line. b. Check the liquid refrigerant sight glassi to make certain that the system is completely charged. c. Clean the interior of the cabinet with a mild soap and warm water solution. Be certain to dry thoroughly. d.
TROUBLESHOOTING INTRODUCTION This chapter provides a systematic check of components in determining a possible cause of failure in the event of various symptoms. The following tables list the most common symptoms that may be experienced and the recommended corrective action. It is necessary that the individual performing the troubleshooting tasks be familiar with the function of the equipment as described in the Functional Description section. Table 5.
CORRECTIVE MAINTENANCE INTRODUCTION 7. The final step in removing the compressor is to disconnect it from its mounting. To free the compressor, remove the wire clips on each of the four feet. This chapter focuses on the instruction needed in the removal and replacement of certain components. It also addresses the repair of components not listed under the scheduled maintenance index covered in the Scheduled Maintenance section. 8.
CORRECTIVE MAINTENANCE If the system overcharge is sufficient enough to immerse the major parts of a hermetic compressor in liquid refrigerant, a situation has been created that when followed by unusual but possible circumstances, can lead to compressor housing seam separation or rupture. 6. Using a standard screwdriver, coarse adjust the control by turning the adjustment screws on top of the control. Preset the cut-in and cutout and 68 lbs. and 38 lbs. respectively for a refrigerator and 25 lbs.
CORRECTIVE MAINTENANCE Replacement of the Drain Line Replacement of the Condensing Fani NOTE: To replace the vinyl drain line, it is necessary that there be access to the rear of the cabinet. 1. Disconnect all electrical power to the unit. 2. Remove the condensing unit from the condensing unit compartment. 1. On the cabinet exterior, remove the rear tubing cover using a 1/4" nut driver. 3. Remove the protective wire shroud from around the motor. 2.
PARTS LIST INTRODUCTION This section of the manual contains lists of replaceable parts. Each of the tables contains a list of removable parts associated with an assembly of the cabinet or refrigeration system. No parts identification has been provided for details of permanently assembled items or those that are not suitable for field repair. Table 7.1 is a parts list of special tools required for routine service. Table 7.
PARTS LIST Middleby# Parts List - Cabinet 20048RSB Mfg# Vendor Qty 31" DSB31C Middleby 1 GSB64MV 6449 Jeans 2 Recessed Pulls HXHL08 P73-2000 Component Hardware 2 Drawer Rollers HXDW02 7319000201 Kason 8 Heater Wire L1HR90 90" Refrigeration Hdwe.
PARTS LIST Item Middleby# Parts List - Cabinet 20060RSB Mfg# Drawer Cartridge 18" DSB18C Middleby 1 Drawer Cartridge 26" DSB26C Middleby 1 Gasket GSB60MV 6449 Jeans 1 Gasket GSB62MV 6449 Jeans 1 Recessed Pulls HXHL08 P73-2000 Component Hardware 2 Drawer Rollers HXDW02 7319000201 Kason 8 Heater Wire L1HR64 64" Refrigeration Hdwe. 1 Heater Wire L1HR82 82" Refrigeration Hdwe.
PARTS LIST Item Middleby# Parts List - Cabinet 20072RSB Mfg# Drawer Cartridge 26" DSB26C Middleby 1 Drawer Cartridge 31" DSB31C Middleby 1 Gasket GSB62MV 6449 Jeans 2 Gasket GSB64MV 6449 Jeans 2 Recessed Pulls HXHL08 P73-2000 Component Hardware 4 Drawer Rollers HXDW02 7319000201 Kason 16 Heater Wire L1HR64 64" Refrigeration Hdwe. 1 Heater Wire L1HR90 90" Refrigeration Hdwe.
PARTS LIST Item Middleby# Parts List - Cabinet 20084RSB Mfg# Drawer Cartridge 18" DSB18C Middleby 2 Drawer Cartridge 26" DSB26C Middleby 1 Gasket GSB60MV 6449 Jeans 4 Gasket GSB62MV 6449 Jeans 2 Recessed Pulls HXHL08 P73-2000 Component Hardware 4 Drawer Rollers HXDW02 7319000201 Kason 16 Heater Wire L1HR64 64" Refrigeration Hdwe. 2 Heater Wire L1HR82 82" Refrigeration Hdwe.
PARTS LIST Item Middleby# Parts List - Cabinet 20096RSB Mfg# Drawer Cartridge 26" DSB26C Middleby 3 GSB62MV 6449 Jeans 2 Recessed Pulls HXHL08 P73-2000 Component Hardware 6 Drawer Rollers HXDW02 7319000201 Kason 24 Heater Wire L1HR82 82" Refrigeration Hdwe. 3 CNNP01MS 3/4" large hex nut Best Bolt 6 Middleby# Parts List - Refrigeration 20096RSB Mfg# RWE430 RWEM03 RWE5101B RWEV39 RWTT08 BBM11A 25300701 5101B EFS1/4C A319ABC-24-01 Gasket Leg nut Item Evaporator Coil Assy.
PARTS LIST Item Middleby# Parts List - Cabinet 20108RSB Mfg# Drawer Cartridge 26" DSB26C Middleby 3 Drawer Cartridge 31" DSB31C Middleby 2 Gasket GSB62MV 6449 Jeans 2 Gasket GSB64MV 6449 Jeans 4 Recessed Pulls HXHL08 P73-2000 Component Hardware 6 Drawer Rollers HXDW02 7319000201 Kason 24 Heater Wire L1HR64 64" Refrigeration Hdwe. 1 Heater Wire L1HR90 90" Refrigeration Hdwe.
INSTALLATION UNPACKING CAUTION Low or excessive voltage can severely damage the electrical system. Note: Before unpacking the unit, note any crate markings and check for damage to crating. Notify the carrier if there should appear to be damage to the unit. Note: Adjusting any valves or controls on the system is not necessary and may void your warranty. All valves and controls have been set by the factory.
ELECTRICAL AND MECHANICAL INTRODUCTION It may be well to note that the practice in the past was to show an additional column marked, "LRA U.L. Test Report". This is no longer needed since the U.L. investigation work, regarding component rating, will be guided by the compressor manufacturer's published value. This section of the manual contains drawings and schematics of the electrical and mechanical piping systems.
ELECTRICAL AND MECHANICAL Figure 9.
ELECTRICAL AND MECHANICAL Figure 9.
LIMITED WARRANTY INTRODUCTION To Secure Warranty Service 1. To claim a defect under this warranty, direct your claim to whomever you purchased the product. Be prepared to provide the model number, serial number, and a description of the problem. Middleby warrants their cabinets and units to consumers only against defects in material or workmanship under normal use and service for a period of one year from the date of shipment.