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5

RFHU Operator’s Manual - Shelf Control

INSTALLATION

UNPACKING UNIT

Inspect the shipping carton and/or container, 

carefully noting any exterior damage on the 

delivery receipt; also note any damage not evident 

on the outside of the shipping container (concealed 

damage). Contact the carrier immediately and file a 

damage claim with them. Save all packing materials 

when filing a claim. Freight damage claims are the 

responsibility of the purchaser and are not covered 

by the warranty.
•  Follow the instructions on the Carton Box for 

unpacking the unit.

•  Inspect unit for damage.
•  Report any dents or breakage to source of 

purchase immediately.

•  Do not attempt to use unit if damaged.

•  Remove all materials from unit interior.
•  If unit has been stored in extremely cold area, 

wait a few hours before connecting power.

INSTALLATION CODES AND STANDARDS

In the United States, the RFHU must be installed in 

accordance with the following:
1.  State and local codes.
2.  National Electrical Code (ANSI/NFPA No. 70, 

latest edition) available from the National Fire 

Protection Association, Batterymarch Park, 

Quincy, MA 02269.

3.  Vapor Removal from Cooking Equipment, 

(NFPA-96, latest edition) available from NFPA.

4.  Sealed to the counter upon which the 

equipment is placed per NSF/ANSI 4 standard.

In Canada, the RFHU must be installed in 

accordance with the following:
1.  Local codes.
2.  Canadian Electrical Code (CSA C22.2 No. 3, latest 

edition) available from the Canadian Standards 

Association, 5060 Spectrum Way, Mississauga, 

Ontario, Canada L4W 5N6. 

UNIT PLACEMENT

•  Do not install unit next to, below or above 

source of heat such as oven or deep fat fryer. 

•  Install unit on level counter top surface.
•  Outlet should be located so that plug is 

accessible when the unit is in place.

•  Do not install unit in the direct path of  

air-conditioned airflow.

 

The following minimum clearances must be 

maintained between the warmer and any 

combustible or non-combustible substance:

Proper airflow around unit will cool the electrical 

components. With restricted airflow, the unit may 

not operate properly and the life of the electrical 

components may be reduced. A 2” clearance is 

recommended at the control side for longer control 

life expectancy.

Unit

Clearance

Right Side

2”

Left Side

2”

Rear

OPEN

Floor

0”

Summary of Contents for ReadyFlex RFHU-23R

Page 1: ...o All rights reserved Reproduction without written permission is prohibited Duke is a registered trademark of the Duke Manufacturing Co CAUTION Please read this manual completely before attempting to...

Page 2: ...ith the ReadyFlex holding unit you can offer new menu items without limitation on how to hold them change your recipes and hold configurations Independent top and bottom heat zones are programmable to...

Page 3: ...ition to the warnings and cautions in this manual use the following guidelines for safe operation of the unit Read all instructions before using equipment For your safety the equipment is furnished wi...

Page 4: ...ion or instruction concerning use of the appliance by a person responsible for their safety Contains Transmitter Module FCC ID 2AC7Z ESP32WROVERB Contains Transmitter Module IC 21098 ESPWROVERB This d...

Page 5: ...ational Fire Protection Association Batterymarch Park Quincy MA 02269 3 Vapor Removal from Cooking Equipment NFPA 96 latest edition available from NFPA 4 Sealed to the counter upon which the equipment...

Page 6: ...not completely understood or if doubt exists as to whether the unit is properly grounded DO NOT USE AN EXTENSION CORD If the product power cord is too short have a qualified electrician install a thr...

Page 7: ...is indicates that the required preset temperature has now been reached by the unit Both the preset temperature and the actual temperature are displayed on the runtime screen The control will contain 2...

Page 8: ...and right navigation buttons The control has a number of configuration icons Selecting the COG icon in the top right hand corner will load the Settings menu SETTINGS A number of settings are availabl...

Page 9: ...l display the following screen The Zone label consists of six characters that can be upper case letters lower case letters or numbers Selecting will save the entry Both temperature sensor displays can...

Page 10: ...by selecting the Access option and then use the slider to either lock or unlock the preset editing The temperature calibration option is also accessible from the Admin menu to edit the offset value fo...

Page 11: ...rid icon in the lower right hand corner See below The below runtime screen displays a sensor fault on Row 1 Top The below runtime screen displays a High Temperature fault on Row 1 Top When a fault occ...

Page 12: ...alts and household and industrial cleaners If cleaners containing chlorides are used be sure to rinse repeatedly and dry thoroughly upon completion Routine cleaning of stainless steel can be done with...

Page 13: ...deeper more aggressive cleaning methods can be avoided Over longer periods of time fried food product can accumulate and bake on to the upper heat sink surfaces of the compartments 6 Use a sanitizer s...

Page 14: ...front side of the unit with on off switch Locate the surface temperature probe on the bottom of the first cavity Position the probe half way back on the heat sink and centered left to right as shown...

Page 15: ...G TOP AND BOTTOM HEAT DIMENSIONS 40 00 14 15 19 56 RFHU 23R RFHU 25S Model 208 240 V 60Hz 220 240V 50 60Hz Height Width Depth body only Amps NEMA Amps IEC in cm in cm in cm RFHU 23R 8 7 9 9 L6 15P 9 1...

Page 16: ...Wire Diagram Model RFHU 23R PCB 1 Top Row PCB 2 Bottom Row 2 2 1 6 1 2 2 2 1 6 1 2 2 2 1 6 1 2 2 2 1 6 1 2 2 2 1 6 1 3 2 2 1 6 1 3 N Top Heat Bottom Heat 2 21 6 12 2 21 6 12 2 21 6 12 2 21 6 12 T1 T2...

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