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Related Manuals for Hussmann Chino MPC-ET Series
Summary of Contents for Hussmann Chino MPC-ET Series
- Page 1 DOE 2012 Hussmann refrigerated merchandisers con gured for sale for use in the United States Energy E ciency meet or surpass the requirements of the DOE 2012 energy e ciency standards. Compliant MOBILE PRODUCE CASE SELF-CONTAINED INSTALLATION & OPERATION GUIDE...
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Page 2: Table Of Contents
Table of Contents General Information Case Section Installation Case Refrigeration Safenet III Programmed Parameters Spec Sheet Electrical/Wiring Diagram Index Wiring Diagram Safenet III Operation Service Maintenance Warranty... -
Page 3: General Information
Shortages: Check your shipment for any possible shortages of material. If a shortage should exist and is found to be the responsibility of Hussmann Chino, notify Hussmann Chino. If such a shortage involves the carrier, notify the carrier immediately, and request an inspection. Hussmann Chino will acknowledge shortages within ten days from receipt of equipment. -
Page 4: Case Section
Case Sections MPC-ET (254) (1353) (1353) (270) (1016) (1549) (1054) (1156) (1156) (1549) Drain Refrig Elec (127) (254) (280) Panels (29) (1219) (2438) Note: Stub up locations may vary. Please refer to the Cadblock at Hussmann.com... -
Page 5: Installation
Installation Location Never stand on the Mobile Produce Case deck for The Mobile Produce Case display has been designed for any reason. These surfaces are not steps and are not use only in air conditioned stores where temperature and designed to support such loads. humidity are maintained either 75°F ambient and 55% RH. -
Page 6: Case Refrigeration
Case Refrigeration Operation Each self-contained model is equipped with its own condensing unit located beneath the display area. The unit will be charged per nameplate refrigerant and shipped from the factory with all service valves open, completely ready for opera- tion when electrical power has been connected. -
Page 7: Safenet Iii Programmed Parameters
Safenet III Programmed Parameters Parameter Programmed Report Parameter Description Value Freezer Cut-in warm 32°F -40ºC (-40ºF) 40ºC (104ºF) Freezer Cut-out warm 28°F -40ºC (-40ºF) 40ºC (104ºF) Freezer Cut-in cold 22°F -40ºC (-40ºF) 40ºC (104ºF) Freezer Cut-out cold 18°F -40ºC (-40ºF) 40ºC (104ºF) Compressor ON time delay at Controller Power Up 0 min 0 sec... -
Page 8: Spec Sheet
Spec Sheet SELF-SERVICE PRODUCE HUSSMANN - MPC-ET REMOTE/SELF-CONTAINED MPC-ET MPC-ET SECTION PLAN REFRIGERATION DATA: END PANEL WIDTH KEY TEMPERATURE (ºF) EST. *** CAPACITY GLYCOL # OF END END PANEL TOTAL ADDED CASE REFG. CASE LENGTH (BTU / HR / TOTAL) -
Page 9: Electrical/Wiring Diagram Index
Electrical Wiring Color Code Field Wiring and Serial Plate Amperage Field Wiring must be sized for component amperes printed on the serial plate. Actual ampere draw may be less than specified. Field wiring from the refrigeration control panel to the merchandisers is required for refrigeration thermostats. -
Page 10: Wiring Diagram
Wiring Diagram... -
Page 11: Safenet Iii Operation
Safe-NET III™ TEMPERATURE AND DEFROST CONTROLLER SAFE-NET III™ USER INSTRUCTIONS Your refrigerated case uses a Hussmann Safe-NET III™ temperature and defrost controller to precisely maintain the temperature and prevent frost buildup on the cooling coil. LEDs indicate when the • Controller LEDs:... - Page 12 Safenet III Operation START-UP • Rear connections - Case temperature sensor; 1. Plug in the merchandiser. • Typically senses the temperature of the air in the case. WARNING Used by the controller to determine when to power on or power off the compressor or refrigera- The OFF Position does not disconnect line tion.
- Page 13 Safenet III Operation SEQUENCE OF OPERATION DDSS-4MC / DDSS-4 Compressor starts Time to Subsequent Defrost Initial Defrost Time to Subsequent Defrost (6-Hours or Demand Defrost) Two hours After Start Up (6-Hours or Demand Defrost) Pull down Compressor On Compressor runs Refrigeration Cycle Pulldown After Defrost continuously until it...
- Page 14 Safenet III Operation TEMPERATURE ADJUSTMENT activated and senses the completion of defrost. Rotate the adjustment knob counter clockwise for a Compressor Compressor Off Time If On Time If warmer set point or clockwise for a colder set point. Sensor Failed Sensor Failed •...
- Page 15 Safenet III Operation TEMPERATURE ADJUSTMENT 1. Rotate the adjustment knob counter clockwise after the temperature is set, the controller reverts for a warmer set point or clockwise for a colder set to the sensed temperature in the merchandiser. point. 3. To verify merchandiser settings, turn the dial to 2.
- Page 16 Safenet III Operation...
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Page 17: Service
Service WARNING ! DISCONNECT THE ELECTRICAL POWER WHEN SERVICING OR REPLACING ANY ELEC- TRICAL COMPONENT. To access compressor area Remove all screws around the perimeter of the ac- cess panel behind the case to expose compressor unit and condensate pan through open section of the rear wall. - Page 18 Service Condensor and Safenett III Access Panel Tips and Troubleshooting Before calling for service: • Check power. Ensure reliable electrical power supply CASE CONTROLLER to the equipment • Check shelf loading. Overstocking will adversely af- fect case performance. • If frost is collecting on fixture or product, verify that store Humidity Control is working properly, and that no outside doors/windows allow moisture into store.
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Page 19: Maintenance
Maintenance Case Cleaning • DO NOT USE A CLEANING OR SANITIZING SOLUTION THAT HAS AN OIL BASE (these will dissolve the butyl To insure long life, proper sanitation and minimum maintenance sealants) or an AMMONIA BASE (this will corrode the costs, the refrigerator should be thoroughly cleaned frequently. -
Page 20: Warranty
Hussmann Specialty Products Service Department IMPORTANT! FPR PROMPT SERVICE WHEN CONTACTING HUSSMANN CORPORATION BE SURE TO HAVE CASE MODEL AND SERIAL NUMBER IN HAND For any warranty or service issues not covered by this manual, for tech support, or for warranty ser-...
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