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Hussmann DVG Series, Installation & Operation Manual, Page: 8 / 11

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Hussmann DVG Series Installation & Operation Manual Download Page 8

 

6

condenser 

of unit compartment 

 

7. Defective condenser fan 
motor 

7. Replace 

 
 
 

TROUBLE SHOOTING CHART 

 
 

TROUBLE PROBABLE 

CAUSE SOLUTION 

 

 

 

High head pressure 

1. Cabinet location too warm 1. Relocated cabinet 

 

2. Restricted condenser air 
flow 

2. Clean condenser or 
remove air flow restriction 

 

3. Defective condenser fan 
motor 

3. Replace motor 

 

4. Air or non-condensable 
gases in system 

4. Leak check, change drier, 
evacuate and recharge 

 

 

 

Warm storage temperatures  1. Temperature control not 

set properly 

1. Reset control 

 

2. Short of refrigerant 

2. Leak check, change drier, 
evacuate and recharge 

 

3. Cabinet location too warm 3. Relocate cabinet 

 

4. Too much refrigerant 

4. Purge system, change 
drier, evacuate and recharge 

 

5. Low voltage, compressor 
cycling on overload 

5. Check voltage at cabinet.  
Should be within 5% of 
rating 

 

6. Heavy frost on side walls 

6. Defrost cabinet 

 

 

 

Compressor runs 
continuously, product too 
cold 

1. Defective control 

1. Replace 

 

2. Control sensing element 
not completely installed in 
well 

2. Push control sensing 
element into well 

 

3. Short on refrigerant 

3. Leak check, change drier, 
evacuate and recharge 

 

 

 

Compressor runs 
continuously, product too 
warm 

1. Short on refrigerant 

1. Leak check, change drier, 
evacuate and recharge 

 

2. Inefficient compressor 

2. Replace  

 

Summary of Contents for DVG Series

Page 1: ...IS MANUAL BEFORE USING THE PRODUCT Installation Operation Manual P N 2402294 B DVG 8 MARCH 2004 HUSSMANN CORPORATION Hussmann Monterrey Mexico Carretera Mexico Laredo KM 1009 Cienga de Flores Nuevo Leon 65550 Mexico Phone 52 81 8318 6400 Fax 52 81 8318 6496 ...

Page 2: ...tion and Maintenance Temperature Control 3 Display Lighting 3 Defrosting 3 Condensing Unit 4 Cleaning the Condenser 4 Cleaning Exterior 4 Cleaning Interior 4 Serial Plate Location and Refrigerant Charges 4 Temperature Control Replacement 5 Operational Data 5 Trouble Shooting Chart 6 7 Dipping Using Guide Loading 7 Storage 7 Lids 7 Temperature Control 7 Load Limits 8 Dipping 8 Maintenance 8 Warrant...

Page 3: ...arrier immediately and have his agent prepare an inspection report for the purpose of filing a claim This is your responsibility SPECIFICATIONS CONSTRUCTION The base is an all welded assembly of heavy duty steel to provide a strong frame The shell is formed from heavy gauge steel The exterior assembly is then chemically treated and finished with baked on powder paint The liner is formed from pre p...

Page 4: ...er for proper refrigeration system performance do not obstruct the grille at the rear intake and discharge Level case front to back and end to end shimming where necessary upon installation to assure proper operating drains and refrigeration system POWER REQUIREMENTS The DVG model is equipped with a three wire grounded service cord for your protection The cabinet is designed to operate on 115V sin...

Page 5: ...r than normal temperatures are required adjust the control by turning the knob clockwise for colder and counter clockwise for warmer temperatures DISPLAY LIGHTING All models are equipped with fluorescent light fixtures installed in the canopy An ON OFF switch is located in the right service side of the canopy and is so labeled DEFROSTING It must be recognized that accumulation of frost on the cabi...

Page 6: ...the compressor and discharges back out the rear access panel CLEANING THE CONDENSER To clean condenser a soft nylon brush should be used to loosen dirt and lint Then vacuum up the dirt or blow condenser out with a high pressure gas such as nitrogen Never use a wire brush to clean condenser tubes CLEANING EXTERIOR INTERIOR When cleaning the exterior of the cabinet use a soft cloth or sponge with wa...

Page 7: ...mp 75 F 85 F DVG 8 DVG 8 Head Pressure psig 230 240 Suction Press psig 9 10 Load Line Temp 5 F 8 F TROUBLE SHOOTING CHART TROUBLE PROBABLE CAUSE SOLUTION Compressor will not start no noise 1 Power disconnected 1 Check service cord for proper connection 2 Blown fuse or breaker 2 Replace fuse or reset breaker 3 Defective or broken wiring 3 Repair or replace 4 Defective overload 4 Replace 5 Defective...

Page 8: ...nt 2 Leak check change drier evacuate and recharge 3 Cabinet location too warm 3 Relocate cabinet 4 Too much refrigerant 4 Purge system change drier evacuate and recharge 5 Low voltage compressor cycling on overload 5 Check voltage at cabinet Should be within 5 of rating 6 Heavy frost on side walls 6 Defrost cabinet Compressor runs continuously product too cold 1 Defective control 1 Replace 2 Cont...

Page 9: ...or to placement in the display freezer Storage temperatures are generally maintained at 12 degrees F to 18 degrees F This allows for long term storage of ice cream without deterioration Dipping temperatures are generally maintained at 5 degrees F to 9 degrees F which allows for rather limited display time before deterioration begins to occur Ice cream removed from a delivery truck walk in freezer ...

Page 10: ...f the container sidewalls and leveling off of the ice cream is essential to avoid discoloration and drying out of the ice cream Scraping the container sidewalls and leveling off the ice cream should be done lightly with the use of a spade Start with the back of the spade turned towards the side of the can working from the top of the can down Once the walls are cleared the top portion of the remain...

Page 11: ... may result in the shipment of the wrong part or a delay in shipment Compressor Replacement Procedure Replacement compressors will not be shipped from the Hussmann factory They may be obtained from your nearest Aspera Wholesaler Your wholesaler will replace free of charge any compressor found to be defective within twelve months of installation not to exceed twenty months from the date of manufact...

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