background image

11

 

REFRIGERATION FUNDAMENTALS 

 

1. Temperature & Defrost Control

 

 

• 

The case temperature is set at the factory, as 

determined by the case size. The temperature is 

controlled by a thermostat.  If a temperature setting 

change is required, follow the instructions for the 

 

Temperature Control Programming Steps in the 

technical information section of this operating 

manual.

 

• 

If service is required to the temperature control 

unit, call Structural Concepts. This maintenance 

should be performed by a certified technician.

 

 

2. Evaporator Fan Access 

 

 

• 

Remove lower decking. A finger hole is provided to 

assist in lifting up and pulling out deck.

 

 

3. Expansion Valve Access 

 

 

• 

Remove lower decking. A finger hole is provided to 

assist in lifting up and pulling out deck.

 

• 

Remove fan shroud assembly.

 

• 

Unplug the fan at the shroud support.

 

• 

Remove four screw knobs from the fan shroud. 

 

• 

Carefully remove shroud to avoid damage to 

mirrors or front air deflector.

 

 

4. Refrigeration:  

 

 

Access and Connections 

 

 

• 

Assembly or disassembly  and servicing to be 

accomplished by licensed refrigeration 

contractor. 

 

• 

Refer to maintenance fundamentals for access.

 

• 

Remove front panel. 

 

• 

Remove front grille.

 

 

 

Front of Case

 

Sight Glass

 

Refrigerant Service Fittings

 

Hot Gas Evaporator

 

Temp. Controller

 

Lower Decking

 

Evaporator Fan

 

Fan shroud

 

Summary of Contents for CO2739R

Page 1: ...USER MANUAL_CO2739R_REF_SVC SELF SVC_SELF CONT_CASE Model CO2739R Shown With Product For Illustrative Purposes Only READ AND SAVE THESE INSTRUCTIONS SCC P N 99399 USER MANUAL Oasis Structural Concepts...

Page 2: ...LUG LED LIGHTS FIXTURES MAINTENANCE FUNDAMENTALS CONTINUED HONEYCOMB AIR DIFFUSERS ELECTRICAL FUNDAMENTALS REFRIGERATION FUNDAMENTALS SERIAL LABEL LOCATION INFORMATION LISTED TECH INFO SERVICE TROUBLE...

Page 3: ...CE Performance issues when in violation of applicable NEC federal state and local electrical and plumbing codes are not covered by warranty See below compliance guideline WARNINGS This sheet contains...

Page 4: ...oved by Structural Concepts and Structural Concepts attests under penalty of perjury that these statements are true and accurate CAUTION DO NOT RELY ON THERMOMETERS OR THERMOSTATS FOR PRODUCT FOOD TEM...

Page 5: ...n position and level and plumb if case has levelers you must reattach these components to case 3 Remove Case From Skid To prevent damage support case while sliding it toward edge of skid For units wit...

Page 6: ...m inside of the case check for discharge air from front baffle to confirm that the fans are functioning properly When the case is in a start up mode or has been idle for a long period of time Main Pow...

Page 7: ...lle 3 Light Fixtures Fluorescents Removal of lamp Rotate lamp 1 4 turn either direction to disengage upper or lower pins contacts from lamp mounting sockets Remove bulb buy applying even pressure from...

Page 8: ...fully pull away from its spring Disconnect plug from LED s socket Contact Structural Concepts Technical Service Department for replacement parts see Technical Service section of this manual for inform...

Page 9: ...sure to collapse the honeycomb to allow it to be pulled out of honeycomb retainer C Pry downward and away from honeycomb retainer Clean honeycomb with warm water and soap solution Submerse if necessar...

Page 10: ...Access and Connections Warning disconnect power before providing maintenance and service to unit 2 Light Ballast Access Remove three screws from the rear wire channel Remove four screws from the rear...

Page 11: ...lower decking A finger hole is provided to assist in lifting up and pulling out deck 3 Expansion Valve Access Remove lower decking A finger hole is provided to assist in lifting up and pulling out dec...

Page 12: ...0 16 A R513A AMOUNT 50 OZ HIGH 186 LOW 88 20A 20A Super Heat Temp 6 8 F FOR PARTS AND SERVICE Defrost 6 defrosts per day 45 F CALL 1 800 433 9490 Serial Label Location Information Listed Technical Inf...

Page 13: ...rcuits Temperature Controller Has No Illumination Check connections on power supply contactor board Check fuse on power supply contactor board Fans Not Working Check that the power is on Check that fa...

Page 14: ...system Check that liquid line filter dryer is not plugged Check that close offs are intact around condensing coil and that air is not recirculate Check that store ambient temperature isn t above maxi...

Page 15: ...e is no air recirculation around evaporator coil Check that evaporator coil is not iced up High Suction Pressure Check for refrigerant overcharge Check that compressor reed valves aren t bad Look for...

Page 16: ...16 ILLUSTRATED PARTS BREAKDOWN 4 8 2 6 7 15 13 5 3 14 9 1 17 12 11 10 16...

Page 17: ...Panel 11 Wire Channel 3 End Panel Mirror 12 Rear Grille 4 Air Deflector Glass 13 Temperature Controller 5 Single Pole Switch 14 Fan Motor Evaporator 6 Front Panel 15 Deck Pan 7 Bumper Insert 16 Lamp B...

Page 18: ...ove rear doors and clean with a household or commercial cleaner X Vacuum tub under deck or soap and water if necessary To flush out the tub disconnect power to the case Remove the ABS deck and the fan...

Page 19: ...s Used OnYour Case Follow These Instructions If Viewing This Document on Smart Phone Tablet or Computer Select Click On The QR Code at Right If Viewing This Document In Print Hard Copy Scan The QR Cod...

Page 20: ...LLOWING INFO AVAILABLE BEFORE CONTACTING STRUCTURAL CONCEPTS SERIAL NO MODEL NO STORE NO STORE ADDRESS DETAILS PHOTOS LEAK LOCATIONS DAMAGE STORE S AMBIENT CONDITIONS ETC ToAccess The Limited Warranty...

Reviews: