HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
IM-H 1-11
Hot Merchandiser
ISLA IM-H
INSTRUCTION SHEET FOR HEATED SHELVES
Use the instructions below to operate the controls for a unit with multiple heated shelves. The controls are located in a remote mounted
control panel and consist of a Power ON/OFF switch and three, four, or five digital temperature controllers, depending on the number of
heated shelves in the unit.
Operation
Use the following instructions to operate the controls on a multi-
heated shelf control panel.
1. Move the Power ON/OFF switch to the ON position.
• The digital temperature controllers will energize and the
current temperature of each shelf will appear on the
corresponding display.
• The phrase “out 1” will appear in the upper left corner of
each display to show that the shelves are in heat mode.
BURN HAZARD: Some exterior surfaces on unit will get hot.
Use caution when touching these areas.
Figure 1. Digital Temperature Controller
2. On each digital temperature controller, press and release the
key to verify the setpoint temperatures.
• The setpoint temperature will be shown for 15 seconds. After
15 seconds, the display will revert to the current temperature
of the corresponding shelf. To change a setpoint temperature,
refer to the “Changing the Setpoint Temperature” procedure.
NOTE: Once a setpoint temperature is changed, the new setpoint
temperature will remain in memory until it is changed again.
3. Allow the heated shelves 10 minutes to reach operating
temperature before loading preheated food product.
Down Arrow
Key
Up Arrow
Key
“out 1”
Fahrenheit
Symbol
SET
Key
CAUTION
Changing the Setpoint Temperature
Use the following procedure to change the setpoint temperature on
a digital temperature controller.
1. Press and release the
key. The current setpoint
temperature will be shown on the display and ”out 1” will flash
in the upper left corner.
2. Press the
key or
key within 15 seconds to change
the setpoint temperature. If no key is pressed within 15
seconds, the display will revert to the current temperature of the
unit.
3. Press the
key or wait 15 seconds to lock in the new
setpoint temperature.
Locking/Unlocking a Digital Temperature Controller
The keys on a digital temperature controller can be locked to prevent
unauthorized changes to the settings.
To lock the keys of a digital temperature controller:
• Press and hold both the
key and
key at the same
time for over two seconds. The message “Loc” will appear on
the display.
To unlock the keys of the digital temperature controller:
• Press and hold both the
key and
key at the same
time until the message “UnL” appears on the display.
Three Shelf
Control Panel
Power ON/OFF
Switch
Digital Temperature
Controller
Four Shelf
Control Panel
Five Shelf
Control Panel
Controller temperature indicates *SHELF-temperature only (not product temperature)
Operation Cont’d
