Hussmann Chino MPC-ET Series Installation & Operation Manual Download Page 18

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CASE CONTROLLER

CASE SWITCH

Condensor and Safenett III Access Panel

Removing the front panel will allow access to the fol-

low components:

. Thermostat Display

. Safenet III Control

Case switch

Service

Tips and Troubleshooting

Before calling for service:

• Check power. Ensure reliable electrical power supply

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.

INTAKE

EXHAUST

LABEL

(see pg. 22)

Intake and Exhaust Vents

Be sure to keep vents clear and free of buildup. DO NOT BLOCK case Bottom or Top panel vents (supplies

critical intake airflow to compressor.)

Summary of Contents for Chino MPC-ET Series

Page 1: ...onfigured for sale for use in the United States meet or surpass the requirements of the DOE 2012 energy efficiency standards CHINO MPC ET MOBILE PRODUCE CASE SELF CONTAINED REV 1018 Installation Operation Manual MOBILE PRODUCE CASE SELF CONTAINED INSTALLATION OPERATION GUIDE ...

Page 2: ... Information 3 Case Section 4 Installation 5 Case Refrigeration 6 Safenet III Programmed Parameters 7 Spec Sheet 8 Electrical Wiring Diagram Index 9 Wiring Diagram 10 Safenet III Operation 11 Service 17 Maintenance 19 Warranty 20 ...

Page 3: ...d merchandisers have been designed for use only in air conditioned stores where temperature and humidity are maintained either 75 F ambient and 55 RH DO NOT allow air conditioning electric fans ovens open doors or windows etc to create air currents around the merchandiser as this will impair its correct operation Shortages Check your shipment for any possible shortages of material If a shortage sh...

Page 4: ...1016 12 305 10 254 493 4 1264 Adjustable Product Depth MPC ET 10 254 Elec Drain Refrig 5 127 11 280 End Panels 11 8 29 C L 411 2 1054 451 2 1156 451 2 1156 61 1549 48 1219 96 2438 ETP Note Stub up locations may vary Please refer to the Cadblock at Hussmann com ...

Page 5: ... maintained either 75 F ambient and 55 RH When selecting the location for placement of this case avoid the following conditions Excessive air movement Doors Air conditioned vents Other air sources Excessive heat Windows Sun Flood lamps 8 feet or less from the product Other heat sources Skid Removal Unstrap case from skid and roll case off to move near plac ing location Note Cases are manufactured ...

Page 6: ...ication Discharge Air Temperature Defrost Frequency Cycle Type of Defrost Termination Temperature Fail safe Time Minutes Mobile Produce Non Critical Temp 27 F 30 minutes every 6 hours Off Time 48 F Evap Temp 40 1 The Safe NET III Controller controls refrigeration temperature This is factory installed in the control panel Adjust this control knob to maintain the discharge air temperature shown Meas...

Page 7: ...e Alarm Enable 1 30 High Temperature Alarm Warm 42 F 40ºC 40ºF 40ºC 104ºF 31 Low Temperature Alarm Warm 24 F 40ºC 40ºF 40ºC 104ºF 32 High Temperature Alarm Cold 34 F 40ºC 40ºF 40ºC 104ºF 33 Low Temperature Alarm Cold 16 F 40ºC 40ºF 40ºC 104ºF 34 Temperature Alarm Differential 4 F 1ºC 2ºF 10ºC 18ºF 35 Temperature Alarm Time delay 0 hour 30 min 0 min 4 hour 59 min 36 Temperature Alarm Disable Time a...

Page 8: ... EVAP PAN RUN TIME OUTLETS VOLTS AMPS MIN COIL ONLY MIN PER DAY AMPS WATTS 4 N A N A 6 80 6 25 1 500 TBD N A N A N A 4 OFF TIME 30 48 N A 6 N A N A 8 N A 1 75 12 60 6 25 1 500 TBD N A N A N A 8 OFF TIME 30 48 N A 6 N A N A OPTIONS NOTES 1 NO GFCI RECEPTACLE OPTION 2 SPECIAL FRONT BODYWORK ACCORDING TO STORE 3 PLUG TYPE IS BASED ON STANDARD FEATURES TBD DEFROST DRIP TIME TERM TEMP ºF DEFROST TIME D...

Page 9: ... 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 Case amperes are listed on the wiring diagram but always check the serial plate BEFORE SERVICING ALWAYS DISCONNECT ELECTRICAL POWER AT THE MAIN DISCONNECT WHEN SERVICING OR REP...

Page 10: ...6 3 208V 240V M M BLACK 14 WHT 14 EVAPORATOR PAN 1500W 6 2 5A 240 VAC 1H95137550 BLACK 14 RED 14 208 240 VAC 60 Hz BLACK 10 RED 10 GREEN 10 BLACK 14 RED 14 M M EVAP FAN MOTOR 4 0477653 4W 12A 120VAC CIRCUIT 1 BUNDLE BROWN BUNDLE PURPLE L1 L2 N G OPTIONAL POWER CORD 10 30 AMP 240V 1H82233550 BLACK 14 RED 14 BUNDLE BLUE POWER SWITCH 125 01 0271 L2 L1 CONDENSING UNIT RLA 12 6 A LRA 55 0 A MCC 17 2 A ...

Page 11: ... power off the controller and compressor Your controller has been custom configured to provide the best temperature and defrost control for your chilled or frozen food The front of the controller has an adjustment knob and status LEDs The back of the controller has connections for sensors and switched equipment The Safe NET III controller includes the following features and connections Adjustment ...

Page 12: ...s are red and their behavior matches the LEDs on the controller START UP 1 Plug in the merchandiser WARNING The OFF Position does not disconnect line voltage to the case refrigeration unit fan or heater 2 Wait for the self check to complete During the self check each LED flashes for one second then all LEDs turn on for two seconds If the LEDs do not flash make sure the adjustment knob is not in th...

Page 13: ...efore the compressor starts 3 4 5 1A 2 1 Apply power to the merchandiser Wait for the self check to complete During the self check each LED flashes for one second and then all LEDs turn on for two seconds If the LEDs do not flash make sure the adjustment knob is not in the OFF position 1A The merchandiser temperature displays at startup The initial defrost starts two hours later The display will s...

Page 14: ... refrigeration will run continuously Turn off or repeat a duty cycle of a few minutes on and a few minutes off DEFROST TERMINATION SWITCH Merchandisers may use a defrost termination switch instead of an evaporator sensor to terminate a defrost cycle The defrost termination switch is temperature activated and senses the completion of defrost Compressor Off Time If Sensor Failed Compressor Status Co...

Page 15: ...int 2 While adjusting the temperature the display shows the set point cut out value A few seconds after the temperature is set the controller reverts to the sensed temperature in the merchandiser 3 To verify merchandiser settings turn the dial to warm and cold as shown above Output readings should be within one degree of the temperatures shown above ...

Page 16: ...16 Safenet III Operation ...

Page 17: ...aintenance To be performed by trained service personnel Warning Turn Off case before performing Preventive Maintenance Condenser Coil a Remove rear panel b Using vacuum vacuum and brush to dislodge and remove dust on and in coil Caution Coil fins are sharp Handle with care Do not bend fins c Replace rear panel Preventative Maintenance Label see pg 22 T STAT LOCATION Thermostat Sensor Access Removi...

Page 18: ...reliable electrical power supply 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 INTAKE EXHAUST LABEL see pg 22 Intake and Exhaust Vents Be sure to keep vents clear and free of buildup DO NOT BLOCK ...

Page 19: ...T USE A CLEANING OR SANITIZING SOLUTION THAT HAS AN OIL BASE these will dissolve the butyl sealants or an AMMONIA BASE this will corrode the copper components of the case Service Ensure front and rear intake panel vents remain clear and clean of any debris to ensure optimal case perform ance To maintain good refrigeration performance a refrigera tion service person should be called periodically at...

Page 20: ... or service issues not covered by this manual for tech support or for warranty ser vice calls please contact the Hussmann Specialty Products Service Department If you have any questions concerning information on these instructions please contact Hussmann Technical Support 866 785 8499 Hussmann Service Call Center 800 922 1919 Hussmann Parts Department 855 487 7778 Hussmann Warranty 800 398 740 ...

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