Related Manuals for Hoshizaki TempGuard
Summary of Contents for Hoshizaki TempGuard
- Page 1 Hoshizaki Hoshizaki America, Inc. Commercial Refrigerators & Freezers Models ® ® TempGuard & SafeTemp INSTRUCTION MANUAL “A Superior Degree of Reliability” www.hoshizaki.com Issued: 2-12-2008 Revised: 5-22-2008...
- Page 2 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
A. Operation ........................11 B. Startup ........................12 C. Cabinet Temperature ....................12 1. TempGuard Models ....................12 a) Temperature Display ................... 12 b) Adjusting the Temperature Setpoint ..............13 c) Changing the Temperature Display Scale (°F or °C) .......... 13 2. - Page 4 2. Condenser(s) ......................19 3. Power Supply Connection ..................19 IV. Troubleshooting ....................... 20 A. Alarm Code Appears in Display ................... 20 1. TempGuard Models ....................20 2. SafeTemp Models ....................21 B. Poor Cooling Performance ..................22 C. Condensation ......................22...
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Page 5: Installation Instructions
I. Installation Instructions IMPORTANT Install in accordance with all applicable national, state, and local regulations. A. Location CAUTION This unit is not intended for outdoor use. Normal operating ambient temperature should be within +45°F to +100°F (+7°C to +38°C). Operation of the unit, for extended periods, outside of this normal temperature range may affect unit performance. -
Page 6: Setup
(d) Attach the adjustable legs or the casters provided to the bottom of the cabinet. (Not required for Roll In or Roll Thru units). 4. For Roll In and Roll Thru units only, remove the internal packaging. Be careful not to damage the unit when removing the internal packaging. -
Page 7: Overflow Pan
The overflow pan is supplied for the unlikely event that water cannot evaporate at a high enough rate. If water is found in the overflow pan, call your Hoshizaki Certified Service Representative for assistance. To install the overflow pan, follow the directions below. -
Page 8: Food Cart Ramp (Roll In And Roll Thru Units)
4. Food Cart Ramp (Roll In and Roll Thru Units) 1) Attach the taper collars and countersunk screws to the body. See Fig. 5. 2) Attach the ramp filler to the food cart ramp, on the side opposite the door hinge. 3) Hook the food cart ramp over the taper collars. -
Page 9: How To Open The Front Panel
To change the door swing, special accessories are required. If installed improperly, the doors will not close and seal correctly. Contact your local Hoshizaki distributor, or the Hoshizaki Technical Support Department at 1-800-233-1940, if door reversal is desired. -
Page 10: Final Checklist
12) Has the end user been given the instruction manual, and instructed on how to operate the unit and the importance of the recommended periodic maintenance? 13) Has the end user been given the name and telephone number of a Hoshizaki Certified Service Representative? -
Page 11: Operating Instructions
II. Operating Instructions A. Operation IMPORTANT 1. Do not leave the doors open. 2. Open and close the doors with care. Doors opened too quickly or forcefully may cause injury or damage to the unit or surrounding equipment. 3. To prevent deformation or cracks, do not spray insecticide onto the plastic parts or let them come into contact with oil. -
Page 12: Startup
(i.e. refrigerator). • SafeTemp Refrigerators: At startup, there is a 2 minute delay before the compressor starts. • SafeTemp Freezers: At startup, a defrost is initiated. C. Cabinet Temperature 1. TempGuard Models a) Temperature Display • The cabinet temperature is displayed on the control panel. See Fig. 7. The display default is °F, but it can be changed to read °C. To change, see "II.C.1.c) Changing the Temperature Display Scale (°F or °C)". -
Page 13: B) Adjusting The Temperature Setpoint
b) Adjusting the Temperature Setpoint The temperature setpoint is the value for the average cabinet temperature. The temperature differential for the compressor to turn on and off is ±3°F of the setpoint. For example, setpoint = 36°F, compressor on at 39°F, compressor off at 33°F. If necessary, adjust the setpoint temperature as follows: 1) Press and hold the up/down arrows simultaneously for 3 seconds. The current temperature setpoint will be displayed. -
Page 14: B) Temperature Setpoint
The time-initiated defrost is factory set for normal conditions. Before changing this setting, contact the Hoshizaki Technical Support Department at 1-800-233-1940 for recommendations. If necessary, adjust the time-initiated defrost frequency as follows: 1) Press and hold the up/down arrows simultaneously for 3 seconds. Press "ENTER" until the dF frequency is displayed. -
Page 15: B) For Freezers
After defrost, there is a 5 minute delay before the compressor will start. Before changing the defrost frequency setting, contact the Hoshizaki Technical Support Department at 1-800-233-1940 for recommendations. If necessary, adjust the defrost frequency as follows: 1) Press and hold the up/down arrows simultaneously for 3 seconds. -
Page 16: Food Storage
This power interruption shuts down the compressor. • The high pressure switch resets automatically. 2. Compressor Short Cycle Timer a) TempGuard Models There is a 2 1/2 minute minimum off-time and on-time for the compressor. • Any time the compressor is started, it will keep running for a minimum of 2 1/2 minutes. • Any time the compressor is turned off, it will stay off for a minimum of 2 1/2 minutes. -
Page 17: Compressor Protector
3. Compressor Protector • If a combined temperature/amperage value is above the limit specified by the compressor manufacturer, a protector operates independently to turn off the compressor. The compressor restarts when this protector has reset. • The compressor protector resets automatically. • If the condenser fan is operating and the compressor is off, it is likely that the protector has operated. 4. Defrost Protection For freezers, primary defrost termination is controlled by the defrost thermistor. However, two additional safeties are also present: • Defrost Time Termination - 1 hour maximum • Defrost Backup Temperature Termination - Measured by a separate device that is... -
Page 18: Cleaning And Maintenance Instructions
III. Cleaning and Maintenance Instructions A. Cleaning WARNING 1. Do not splash water directly onto the unit. This might cause short circuit, electric shock, corrosion, or failure. 2. When cleaning or inspecting the unit, turn off the power switch and unplug or disconnect power to the unit to reduce the risk of electric shock by unexpected entrance of water into the unit, or injury by any moving parts. -
Page 19: Maintenance
3. Power Supply Connection If the plug or power cord is damaged, contact a Hoshizaki Certified Service Representative immediately and ask for repairs. All other maintenance or service on this unit should be performed in accordance with the... -
Page 20: Troubleshooting
A. Alarm Code Appears in Display 1. TempGuard Models If an error occurs, the alarm code and cabinet temperature are displayed in 2-second intervals and an alarm sounds. When an error occurs, check the error code and follow the instructions below. -
Page 21: Safetemp Models
Alarm Signals Alarm Alarm Code Sound Problem Reset Options High Pressure Alarm Clean the air filter and/or condenser if necessary. Press "RESET." If the high Compressor discharge pressure is pressure switch resets automatically, the outside of the normal operating range. alarm will be silenced and "E4"... -
Page 22: Poor Cooling Performance
B. Poor Cooling Performance • Door(s) opened too often. • Door(s) left open. Close. • Too packed with food or air inlet/outlet blocked. Allow some space between items/ containers to ensure good air flow. • Warm or hot foods inside. Take them out until they cool down more. • Ambient temperature too high. Avoid installation near high heat producing equipment or exposure to direct sunlight. • Cabinet temperature setting too high. Readjust it to a lower temperature. • Unit in defrost process. The cabinet temperature may rise temporarily during defrost cycle, but this will not affect the food inside. C. Condensation • Door(s) left open. Close. • Ambient humidity too high. Condensation may occur on a humid or rainy day. Wipe off occasionally. - Page 23 HOSHIZAKI AMERICA, INC. 618 Hwy. 74 S., Peachtree City, GA 30269 USA TEL (770) 487-2331 FAX (770) 487-3360 www.hoshizaki.com 91A3GM10B...