Commercial Series. Power switch & Nameplate location: NAMEPLATE: Single and Dual Section

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Ann Webb
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1 COMMERCIAL SERIES

2 Commercial Series

3 Commercial Series Power switch & Nameplate location: NAMEPLATE: Single and Dual Section Must reach over behind Front Panel to access: Single and Dual Section

4 Commercial Series Nylon Gravity Closer with Stay open feature, Beginning in Oct and Newer have new spring loaded hinges. Ducted Airflow (If removing be careful not to break the Duct Stand Off as you have to pinch it to remove Duct) One Piece ABS Interior

Commercial Series ACCESSING EVAPORATOR B. A. C. D. A. Remove Screws Completely B.

Slowly Drop Fan Shroud while pulling forward to release D drain

and insert it through the shroud D and into the cabinet drain pipe

5 secure the drain heater to evaporator shroud rear flange with

5 Commercial Series ACCESSING EVAPORATOR B. A. C. D. A. Remove Screws Completely B. Remove while supporting Evaporator Fan Shroud C. Slowly Drop Fan Shroud while pulling forward to release D drain Note: If updating the unit with a drain heater order part HS-3567 and insert it through the shroud D and into the cabinet drain pipe approx. 8.5 secure the drain heater to evaporator shroud rear flange with aluminum tape see example at the right, route wires with the defrost thermostat wires and wire the heater in parallel with Defrost heater.

Commercial Series Defrost Thermistor (bottom of Evap.) Cabinet Thermistor: Be careful when dropping Evap.

Fan Shroud Cabinet Thermistor : Mounted inside Shroud To check thermistor resistance, follow the steps below.

3) Disconnect and remove the thermistor in question.

6 Commercial Series Defrost Thermistor (bottom of Evap.) Cabinet Thermistor: Be careful when dropping Evap. Shroud Evap. Fan Shroud Cabinet Thermistor : Mounted inside Shroud To check thermistor resistance, follow the steps below. 1) Move the power switch to the "OFF" position, then unplug the appliance. 2) Remove the control box cover. 3) Disconnect and remove the thermistor in question. 4) Immerse the thermistor sensor portion in a glass containing ice and water for 2 to 3 min. 5) Check the resistance between the wires at the thermistor connector. Normal reading is within 16.0 to 16.7 kω. If outside the normal reading, replace the thermistor.

7 CR & CF Refrigeration System A Series Cap tube / B Series Expansion Valve Condenser Fan Motor Evaporator Compressor Drier Cap Tube Stainless Condensate Pan Coated Copper Coil & Lockdown strap

Float NOTE: Service replacement part # SP-5080 Must change both

8 CR & CF Condensate Pump Beckett Pump NOTE: If replacing pump order HS- Power Hose to Condensate drain pan Wire harness from Float NOTE: Service replacement part # SP-5080 Must change both pump motor and float!!! Overflow to pan underneath Condensate water In

9 COMMERCIAL REFRIGERATOR SEQUENCE

COMMERCIAL REFRIGERATOR SEQUENCE DEFROST (display shows DEF) 20 minute minimum /1 hr. maximum INITIATION Defrost Thermistor cools to 8.6 F defrost begins, Evap.

Fan & Mullion Heaters continue, Compressor & Condenser Fan energize 2 minute temperature display delay timer starts.

10 COMMERCIAL REFRIGERATOR SEQUENCE DEFROST (display shows DEF) 20 minute minimum /1 hr. maximum INITIATION Defrost Thermistor cools to 8.6 F defrost begins, Evap. Fan Motor & Mullion Heaters continue Compressor & Condenser Fan de-energize TERMINATION Defrost Thermistor warms to 40 F Evap. Fan & Mullion Heaters continue, Compressor & Condenser Fan energize 2 minute temperature display delay timer starts. NOTE Defrost Manual Initiation: Press and hold lower button until DEF displays Evap. Fan & Mullion Heaters continue, Compressor & Condenser Fan De-energize SWITCH ON Slight delay occurs (the 2 hour hi-temp. alarm is bypassed at startup, therefore a Hi temp. alarm could occur ) Reset: press upper button alarm display will clear after temp. is within Factory parameters. COOLING STARTED After 2 min. compressor delay the Evap. Fan & the Mullion Heaters energize. Display, Compressor & Condenser Fan come on COOL DOWN ACHIEVED Cabinet Thermistor cools to 3 F below set point Evap. Fan & Mullion Heaters continue, Comp. & Condenser Fan de-energize COOL DOWN RESTART Cabinet Thermistor warms to 3 F above set point, Evap. Fan & Mullion Heaters continue, Comp. & Condenser Fan energize

11 COMMERCIAL FREEZER SEQUENCE

COMMERCIAL FREEZER SEQUENCE DEFROST (TEMP. & TIME TERMINATED) (display shows def) 5 minute minimum 1 hr.

timer times 4 hours and DTH is at or below 32 F defrost begins, Defrost Heater de-energizes Mullion &

TERMINATION Defrost Thermistor warms to 59 F, starts 3 min. Compressor Delay, 8 min. Evap.

Display timer delay, Mullion & Perimeter Heaters continue, Defrost Heater deenergizes. 3 min.

Fan delay timer terminates Evap. Fan energizes, 5 min. after fan starts, 13 min.

NOTE Defrost Manual Initiation: Press and hold lower button until DEF displays Mullion & Perimeter Heaters

Fan Deenergize 4 hour Minimum defrost interval SWITCH ON Slight delay (the 2 hour hi-temp.

alarm could occur at startup) Reset: press upper button alarm display will clear after temp.

12 COMMERCIAL FREEZER SEQUENCE DEFROST (TEMP. & TIME TERMINATED) (display shows def) 5 minute minimum 1 hr. maximum INIATION Defrost Thermistor cools to 32 F, starts 4 hour cumulative Compressor run timer, when timer times 4 hours and DTH is at or below 32 F defrost begins, Defrost Heater de-energizes Mullion & Perimeter Heaters continue Compressor & Condenser Fan & Evap. Fan de-energize. TERMINATION Defrost Thermistor warms to 59 F, starts 3 min. Compressor Delay, 8 min. Evap. Fan delay, and 13 min. Display timer delay, Mullion & Perimeter Heaters continue, Defrost Heater deenergizes. 3 min. timer terminates Compressor & Condenser Fan energize, 5 min. later 8 min. Evap. Fan delay timer terminates Evap. Fan energizes, 5 min. after fan starts, 13 min. temperature display delay timer terminates and cabinet temp. returns to Display module. NOTE Defrost Manual Initiation: Press and hold lower button until DEF displays Mullion & Perimeter Heaters continue, defrost heater energizes, Compressor & Condenser & Evap. Fan Deenergize 4 hour Minimum defrost interval SWITCH ON Slight delay (the 2 hour hi-temp. alarm bypassed, therefore a Hi temp. alarm could occur at startup) Reset: press upper button alarm display will clear after temp. is within Factory parameters. COOLING STARTED After 2 min. compressor delay the Evap. Fan & the Mullion Heaters, and Perimeter heaters energize, Display, Compressor & Condenser Fan come on COOL DOWN ACHIEVED Cabinet Thermistor cools to 3 F below set point Evap. Fan & Mullion & Perimeter Heaters continue, Comp. & Condenser Fan de-energize COOL DOWN RESTART Cabinet Thermistor warms to 3 F above set point, Evap. Fan & Mullion & Perimeter Heaters continue, Comp. & Condenser Fan energize

13 CLICK BELOW FOR PRINTABLE VERSON COMMERCIAL CHEAT SHEET

14 Original Commercial Controller Danfoss Solid State Controller Temperature default is F can be changed to show C Cabinet temperature is updated every 20 seconds. To change from F to C simple: Press and hold upper button for 5 sec. then release and push upper button again to change setting to C, wait a few seconds and current cabinet temp will be shown in new setting.

15 Original Commercial Controller

16 Original Commercial Controller Adjusting Temp. Set point Factory setting for refrigerators is 36 F (2 C) Factory setting for freezers is -4 F (-20 C) Temperature Differential +/-3 F To Adjust set point Press upper or lower button briefly and release. The current temperature set point will flash, press the upper or lower button until desired temp. is displayed. Then wait a few seconds, the display will return to current cabinet temp. and set point is now saved.

18 New Danfoss Controller Change temperature Set Point Change from ºF to º C

19 DEFROST New Danfoss Controller Refrigerator- off cycle defrost, defrost Icon will light up Time initiated once every 2 hours Terminates when defrost thermistor reaches 40 F (4.4 C) Defrost minimum time is 20 minutes, maximum 1 hour Freezer- heated defrost, defrost Icon will light up and def will be displayed Initiated by temperature/compressor run-time Temperature initiated defrost thermistor reaches 32 F (0 C), compressor initiated happens when cumulative compressor run time equals 4 hours without a defrost Terminates when defrost thermistor reaches 59 F (15 C), a 3 min. Compressor delay timer starts, a 7 min. evaporator fan delay starts, and an 18 min. temperature delay timer start NOTE: the 7min. evap. fan delay is a max., if thermistor cools to 25ºF (3.9ºC) before 7min. timer terminates the evap. fan will energize Defrost minimum time is 20 minutes, maximum 1 hour Manual Defrost can be achieved by pressing manual defrost button

20 Safety Devices New Danfoss Controller Automatic reset High pressure - interrupts compressor power Compressor short cycle time - 2 minutes minimum Alarm Codes:

21 We hope that this gives you a good understanding of the operation for the Commercial series units. If you have any questions concerning this or any other technical information please send to techsupport@hoshizaki.com or call the Technical Support Department at

PROFESSIONAL - SSE. Stainless steel interior and exterior (with galvanized back and bottom)

PROFESSIONAL - SSE. Stainless steel interior and exterior (with galvanized back and bottom) PROFESSIONAL SERIES PROFESSIONAL - SSE PROFESSIONAL - SSE PROFESSIONAL - SSE Stainless steel interior and exterior (with galvanized back and bottom) Innovative variable speed compressor with adaptive control