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Summary of Contents for Hoshizaki HNC-120BA-L-S
- Page 1 S041-789 ISSUED: OCT. 26, 2009 REVISED: HOSHIZAKI COUNTER SHOWCASE HNC-120BA-L/R-S MODEL HNC-150BA-L/R-S HNC-180BA-L/R-S HNC-210BA-L/R-S SERVICE MANUAL...
- Page 2 Hoshizaki provides this manual primarily to assist qualified service technicians in the maintenance and service of the product. Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, write, or send an e-mail message to the Hoshizaki Technical Support Department for assistance. HOSHIZAKI AMERICA, INC.
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Page 3: Table Of Contents
1. SAFETY INSTRUCTIONS ---------------------------------------------------------------------------- 1 2. MODEL NAME ------------------------------------------------------------------------------------------- 3 3. OPERATING INSTRUCTIONS ---------------------------------------------------------------------- 4 4. SPECIFICATIONS -------------------------------------------------------------------------------------- 5 5. DIMENSIONS -------------------------------------------------------------------------------------------- 6 [a] HNC-120BA-L-S ------------------------------------------------------------------------------------ 6 [b] HNC-120BA-R-S ------------------------------------------------------------------------------------ 7 [c] HNC-150BA-L-S ------------------------------------------------------------------------------------ 8 [d] HNC-150BA-R-S ------------------------------------------------------------------------------------ 9 [e] HNC-180BA-L-S ---------------------------------------------------------------------------------- 10... - Page 4 11. CONSTANT PRESSURE EXPANSION VALVE AND REFRIGERANT CHARGE ---- 20 [a] SPECIFICATIONS -------------------------------------------------------------------------------- 20 [b] FUNCTION ----------------------------------------------------------------------------------------- 20 [c] CONSTRUCTION -------------------------------------------------------------------------------- 20 [d] REPLACEMENT ---------------------------------------------------------------------------------- 21 12. SERVICE DIAGNOSIS ------------------------------------------------------------------------------ 22...
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Page 5: Safety Instructions
1. SAFETY INSTRUCTIONS The following instructions contain important safety precautions and should be strictly observed. The terms used here are defined as follows: WARNING: There is a possibility of death or serious injury for the service person and a third party or the user due to improper service operations or defects in serviced products. - Page 6 (7) Before servicing, check the surface temperature of the refrigeration circuit to prevent a burn. 5. Keep the following in mind when making electrical connections: (1) Check for proper grounding connections, and repair if necessary to prevent electric shocks. (2) Always use service parts intended for the applicable model for replacement of defective parts.
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Page 7: Model Name
2. MODEL NAME H NC - 120 B A - L/R - S High Grade Exterior S: Stainless steel Counter Showcase Unit Location Width (cm) L: Unit on left 120, 150, 180, 210 R: Unit on right Development Order HA model Starts from A Unit on right Unit on left... -
Page 8: Operating Instructions
3. OPERATING INSTRUCTIONS IMPORTANT Hoshizaki Counter Showcase is intended for temporary food display. Constructed with much glass, this showcase gives relatively insufficient heat insulation and poor cooling performance compared with refrigerators in general. For safe and efficient operation, be sure to follow the instructions below. -
Page 9: Specifications
4. SPECIFICATIONS HNC-120BA-L-S HNC-150BA-L-S HNC-180BA-L-S HNC-210BA-L-S MODEL -R-S -R-S -R-S -R-S L: S041 L: S043 L: S045 L: S047 PRODUCT CODE R: S042 R: S044 R: S046 R: S048 AC SUPPLY VOLTAGE 1 Phase 115V 60Hz POWER SUPPLY CAPACITY 0.47kVA (4.7A) RATED AMPERAGE 3.2A... -
Page 10: Dimensions
5. DIMENSIONS [a] HNC-120BA-L-S... -
Page 11: [B] Hnc-120Ba-R-S
[b] HNC-120BA-R-S... -
Page 12: [C] Hnc-150Ba-L-S
[c] HNC-150BA-L-S... -
Page 13: [D] Hnc-150Ba-R-S
[d] HNC-150BA-R-S... -
Page 14: [E] Hnc-180Ba-L-S
[e] HNC-180BA-L-S... -
Page 15: [F] Hnc-180Ba-R
[f] HNC-180BA-R-S... -
Page 16: [G] Hnc-210Ba-L-S
[g] HNC-210BA-L-S... -
Page 17: [H] Hnc-210Ba-R-S
[h] HNC-210BA-R-S... -
Page 18: Refrigeration Circuit
6. REFRIGERATION CIRCUIT Expansion Drier Valve Evaporator Fan Motor (Upper) Condenser Evaporator (Lower) Compressor Heat Exchange Refrigerant: R134a... -
Page 19: Wiring Diagram
7. WIRING DIAGRAM Power Supply 1 phase 115V 60Hz Compressor Start Relay Start Capacitor Overload Relay Fan Motor ELB Ground Fault Circuit Interrupter... -
Page 20: Construction
8. CONSTRUCTION Top Cover Nameplate Joint Hose Front Glass Plug Power Switch (Ground Fault Interrupter) Condenser Center Frame Air Filter Slider Louver Sliding Glass Door Food Mount... -
Page 21: Removal And Replacement
9. REMOVAL AND REPLACEMENT CAUTION 1. Be sure to unplug the showcase before removing or replacing the parts. 2. Handle the glass parts with care. [a] SIDE COVER Remove the two machine screws at the bottom, lift up the side cover, and unhook Top Cover the top. -
Page 22: [D] Side Frame
[d] SIDE FRAME Remove the sliding door, side cover and top cover. Unbind the wiring on the side frame. Remove the two screws securing the top frame and the top of the side frame. Lift the side frame off the bottom fit. [e] CENTER FRAME (Except HNC-120 type) Remove the two flat head machine screws (black) securing the center frame to the rear... -
Page 23: Refrigerant Service Information
10. REFRIGERANT SERVICE INFORMATION 1) Allowable Compressor Opening Time and Prevention of Lubricant Mixture [R134a] The compressor must not be opened more than 30 minutes in replacement or service. Do not mix lubricants of different compressors even if both are charged with R134a, except when they uses the same lubricant. -
Page 24: Constant Pressure Expansion Valve And Refrigerant Charge
pump may be the same as those for the current refrigerants. However, the rubber hose and gauge manifold to be used for evacuation and refrigerant charge should be exclusively for R134a. 8) Refrigerant Leak Check Refrigerant leaks can be detected by charging the unit with a little refrigerant, raising the pressure with nitrogen and using an electric detector. -
Page 25: [D] Replacement
[d] REPLACEMENT WARNING Always protect the valve body by using a damp cloth to prevent the valve from overheating. Do not braze with the valve body exceeding 230°F (110°C). IMPORTANT Always install a new Drier every time the sealed refrigeration system is opened. -
Page 26: Service Diagnosis
12. SERVICE DIAGNOSIS PROBLEM POSSIBLE CAUSE REMEDEY [1] Showcase will not 1. Ground fault circuit interrupter in 1. Turn ON. start. OFF position. 2. Unplugged. 2. Plug in. 3. Supply voltage too low. 3. Plug into a separate receptacle of 115V ±...
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