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Hussmann Q2SSNM4SPA, Installation & Operation Manual

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Hussmann Q2SSNM4SPA Installation & Operation Manual Download Page 13

P/N 3091736_C 

13

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

Q2SSNM4SPA Merchandisers

Typical Sensor to Control Configuration

TEMPERATURE 

SENSOR

DEFROST

SENSOR

THERMOSTAT

SOLID STATE RELAY

MAIN SWITCH

POWER 
CORD

CONTROL BOX

CONTROL BOX ASSY MAY INCLUDE:

-

LED POWER 

SUPPLY

TEMPERATURE 

SENSOR

DEFROST

SENSOR

THERMOSTAT

SOLID STATE RELAY

MAIN SWITCH

POWER 
CORD

CONTROL BOX

CONTROL BOX ASSY MAY INCLUDE:

-

LED POWER 

SUPPLY

Summary of Contents for Q2SSNM4SPA

Page 1: ...gas is present or even suspected do not allow untrained personnel to attempt to nd the cause The propane gas used in the unit has no odor The lack of smell does not indicate a lack of escaped gas If...

Page 2: ...en suspected do not allow untrained personnel to attempt to find the cause The propane gas used in the unit has no odor The lack of smell does not indicate a lack of escaped gas If a leak is detected...

Page 3: ...Configuration 13 START UP OPERATION Controller Operation 14 Controller Data 17 Start Up 18 Controls and Adjustments 18 Self Contained Startup Checklist 19 Load Limits 20 Stocking 20 Thermometer 20 MAI...

Page 4: ...designed for only pre frozen products ATTENTION Merchandiser must operate for 24 hours before loading product Regularly check merchandiser temperatures Do not break the cold chain Keep products in co...

Page 5: ...ng damage before and during unloading This equipment has been carefully inspected at our factory Any claim for loss or damage must be made to the carrier The carrier will provide any necessary inspect...

Page 6: ...as possible to its permanent location and remove all packaging Check for damage before discarding packaging Remove all separately packed accessories such as kits and shelves Improper handling may cau...

Page 7: ...ndiser s must be installed level to ensure proper operation of the refrigeration system and to ensure proper drainage of defrost water SERIAL PLATE LOCATION The serial plate is located on the inside o...

Page 8: ...other Sealing of the lower front and rear panels on self contained mod els may hamper their removal for servicing or maintenance of the condensing unit NOTE Do not allow trim to cover any intake or d...

Page 9: ...ath the display area The correct type of refrigerant will be stamped on each merchandiser s serial plate The refrigeration piping is leak tested The unit is charged with refrigerant and shipped from t...

Page 10: ...ve a written safety procedure in place The safety procedure must comply with all applicable codes such as local re department s codes At minimum the following actions are required Immediately evacuate...

Page 11: ...of the system 4 Connect hose to an evacuated recovery tank Open refrigeration gauges and recovery tank 5 Withthesuctionvalveinvacuum therefrigerantwill be recovered into the recovery tank 6 Once recov...

Page 12: ...Ensure that the refrigeration system is properly grounded prior to charging the system with refrigerant to avoid the potential for static build up Extreme care must be taken not to over ll the refrige...

Page 13: ...O 63044 2483 U S A Q2SSNM4SPA Merchandisers Typical Sensor to Control Configuration TEMPERATURE SENSOR DEFROST SENSOR THE EMPERATURE ENSOR THERMOSTAT SOLID STATE RELAY MAIN SWITCH POWER CORD CONTROL B...

Page 14: ...the parameter code you want to change and push the middle buttons until value for the parameter is shown When you have changed the value save the new value by once more pushing the middle button Exam...

Page 15: ...with reference displacement r39 Lower alarm limit Here you set when the alarm for low tempera ture is to start The limit value is set in C abso lute value The limit value will also be raised in connec...

Page 16: ...n when rail heat is to operate Light The relay cuts in when the light has to be switched on Hotgas defrost See dia gram The relay will cut out when defrost has to be done Data communication The contro...

Page 17: ...P N 3091736_C 17 HUSSMANN CORPORATION BRIDGETON MO 63044 2483 U S A Q2SSNM4SPA Merchandisers...

Page 18: ...ate before loading product CONTROLS AND ADJUSTMENTS 1 The T stat controller controls refrigeration temperature This is factory installed in the control panel Adjust setpoint on the display to maintain...

Page 19: ...in a safe place for future reference 2 Examine unit Confirm there is NO damage or concealed damage 3 Level the unit side to side and front to rear 4 Remove all shipping brackets compressor straps bolt...

Page 20: ...oading product Proper rotation of product during stocking is necessary to prevent product loss Always bring the oldest product to the top and set the newest to the bottom Air discharge and return flue...

Page 21: ...detergents acids chemicals or abrasives Do not use ammonia based cleaners on acrylic parts Interior Surfaces Do not use ammonia based products to clean light shields Never use abrasive cleansers or s...

Page 22: ...roughly clean all surfaces with soap and hot water Do not use steam or high water pressure hoses to wash the interior These destroy merchandiser s sealing causing leaks and poor performance Take care...

Page 23: ...ts Do not use cleaners containing salts as this may cause pitting and rusting of the stainless steel finish Do not use bleach CLEANING SOLAR THERMOMETER These models have solar thermometers The thermo...

Page 24: ...ies into a limited capacity evaporation pan Debris or dirt accumulation inside the conden sate evaporation pan or on the heater coil will reduce the pan s evaporation capacity and cause premature heat...

Page 25: ...aintain product integrity move all product to a cooler until the unit has returned to normal operating temperatures Airflow blockage increases energy consump tion and reduces the merchandiser s abilit...

Page 26: ...air registers fans and doors etc x Check for water leaks x Clean evaporator coil s and fan blade s Do not use an acid base cleaner Rinse off any cleaner residue x Clean discharge air honeycombs or gr...

Page 27: ...m 8 Reconnect fan to wiring harness 9 Turn on power 10 Verify that motor is working and blade is turning in the correct direction 11 Close air gaps under fan plenum Warmer air moving into refrigerated...

Page 28: ...information or other support contact your Hussmann representative Please include the model and serial number of the product Hussmann Corporation Corporate Headquarters Bridgeton Missouri U S A 63044 2...

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