Hussmann microSC SHM-A Series Installation & Operation Manual Download Page 32

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To obtain warranty 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. 63044-2483 01 October 2012

Summary of Contents for microSC SHM-A Series

Page 1: ...be circulated by the fans If propane 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 n...

Page 2: ...is present or even 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 l...

Page 3: ...Recover Refrigerant 2 5 Charging 2 5 Waste Outlet and Water Seal 2 5 START UP OPERATION Controller Operation 3 1 Key Function 3 2 Further Information 3 3 Connections 3 4 LED 3 5 KDE PLUS Buttons 3 6 S...

Page 4: ...re 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 cooler before loading...

Page 5: ...should be thoroughly examined for shipping 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 c...

Page 6: ...rsely affect performance and may damage the refrigeration system These models need clearance a minimum of 1 inch on each side and at the back of the unit This warning does not mean that Hussmann produ...

Page 7: ...rious personal injury could occur Do not stand inside of merchandiser SHIPPING SKID Each merchandiser is shipped on a skid to protect the merchandiser s base and to make positioning the case easier Do...

Page 8: ...der parts for the merchandiser REFRIGERATION UNIT ACCESS The lower access panel may be removed by lifting the panel straight upward and over the screws on which it is hanging The panel is installed by...

Page 9: ...ension cord 6 Ensure that the proper electrical requirements for the equipment are supplied 7 Verify field electrical connections are tight 8 Verify all electrical wiring is secured and clear of any s...

Page 10: ...1 6 INSTALLATION P N 3104942_B U S Canada 1 800 922 1919 Mexico 01 800 890 2900 www hussmann com NOTES...

Page 11: ...voids the warranty Do not use an extension cord Never plug in more than one merchandiser per electrical circuit Always use a dedicated circuit with the amperage stated on the unit Plug into an outlet...

Page 12: ...TION P N 3104942_B U S Canada 1 800 922 1919 Mexico 01 800 890 2900 www hussmann com REFRIGERATION SYSTEM Views below show slide out refrigeration system Pull out the condensing unit where the label i...

Page 13: ...equipment Failure to follow instructions can result in an explosion death injury and property damage If a leak is detected follow store safety procedures It is the store s responsibility to have a wri...

Page 14: ...sed to charge the system The charge amount is shown on the serial plate Only R 290 grade refrigerant can be used Standard propane does not meet the purity moisture content of R 290 and therefore canno...

Page 15: ...vice tubes before brazing them shut Remove all service ports If a Schrader valve is used on the compressor service tube it must be removed and the previous steps followed in order to braze the service...

Page 16: ...2 6 STARTUP OPERATION P N 3104942_B U S Canada 1 800 922 1919 Mexico 01 800 890 2900 www hussmann com NOTES...

Page 17: ...y also cycle evaporator fan s on and off determined by the Set Point and Differential temperatures a The Set Point is the adjustable preprogrammed temperature b The Differential is the non adjustable...

Page 18: ...SPDT relay 8 4 A max 250Va OUT4 1 SPST relay 8 4 A max 250Va OC Open Collector Output OC 1 multifunctional output 12Vc 20mA MECHANICAL CHARACTERISTICS Dimensions Terminals Connectors Humidity TTL for...

Page 19: ...KDEPlus or KDWPlus external keyboard or ECPlus echo module 3 LINE These are power supply terminals 19 18 PB1 probe connection 4 OUT2 Shared Terminal 21 20 PB2 probe connection 5 N O OUT2 23 22 PB3 pro...

Page 20: ...rmanently on Defrost active Blinking Activated manually or from Digital Input OFF otherwise 3 Fans Permanently on Fans active OFF otherwise 4 Reduced SET Economy Permanently on Energy Saving active Bl...

Page 21: ...and released Press for at least 5 secs Start up 1 Scrolls through menu items Decreases values Activates the Manual Defrost function from outside menus 2 Scrolls through menu items Decreases values Fu...

Page 22: ...LINE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 GND D GND D OC 12V TTL OPTIONAL SENSOR TEMP DEFROST ORANGE 12V D GND KEYB 15 cm MAX NEUTRO NEUTRO PB1 PB2 SENSOR...

Page 23: ...peratures should be measured at the center of the discharge honeycomb Defrosts are time initiated and temperature terminated The defrost setting is factory set as shown above To ensure a thorough defr...

Page 24: ...OCKING Product should NOT be placed inside the merchandisers until merchandisers are at proper operating temperature Allow merchandiser 24 hours to operate before loading product Proper rotation of pr...

Page 25: ...pty into an evaporation pan that will overflow if too much water is introduced during cleaning Do Use Remove the product and all loose debris to avoid clogging the waste outlet Store product in a refr...

Page 26: ...duct from the merchandiser and place in cooler Always disconnect electrical power before cleaning 1 Place a small screw driver between the front grille and step pan Gently lift the step pan s front li...

Page 27: ...to remove dirt and debris Do not bend coil fins Always wear gloves and protective eye wear when cleaning near sharp coil fins and dust particles CLEANING EVAPORATION PAN The condensate water outlet f...

Page 28: ...unit Heat and 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 hon...

Page 29: ...Turn off power to the merchandiser 2 Make sure there is no voltage in the refrigerator Remove front grille to have acess to the machine compartment 3 Remove condensing unit screws Fig A 4 Slide out th...

Page 30: ...5 Sliding out the condensing unit Fig B Be careful using the condesing unit plate to pull out the condensing unit Make sure do not stress other parts 6 Disconnect condenser motor harness 7 Remove hexa...

Page 31: ...here is no voltage in the refrigerator 3 Remove step shelf in order to access the evaporator 4 Disconnect evaporator fan motor harness for each motor 5 Remove screws 2 on each side total of 4 to remov...

Page 32: ...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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