OWNER’S MANUAL
MODEL DH1-1010 SERIES – HEATED HOLDING UNIT
174830 RV120817
2
Copyright © 2017 Marshall Air Systems, Inc.
All Rights Reserved.
that period. If the controller is inadvertently turned OFF and back ON, the preheat period can be
bypassed by a 3 second press of the down arrow button only if both heaters are within the allowed
differential temperature set points (preheat bypass temperature parameter).
2. After preheat, the controller goes into idle mode "---". At this time, any timer can be started.
HOLDING TIME CYCLES:
1. To start a cycle, press a timer start/stop button. The display will show the holding time value in
minutes and starts the countdown. The LED bars for that timer channel will then light steady
green.
2. When the timer reaches the pre-alert value, the display will then alternate between showing the
remaining time and "drP" for DROP, the LED bars will start flashing and a beeping will start. The
user then has to acknowledge the pre-alert by a press of the timer start/stop button. The display
will then flash the remaining time for the rest of the cycle, the LED bars will go back to steady and
the beeping will stop.
3. When the timer reaches the "000" value, the display will flash "000", the LED bars will flash red
and the beeping will start until the user acknowledges the end of the cycle by pressing the timer
start/stop button. The timer will then go back to idle mode "---", the led bars will turn OFF and the
beeping will stop.
4.
This step only applicable to controls that are set to interdependent group configuration.
See Group Configuration into “Programming – General Settings” for more information.
If
a subsequent timer cycle is started while previous timer cycle(s) are still active, the display will
show the holding time value in minutes and start countdown but the LED bars will turn steady red
to indicate that the associated pan is not yet to be used. Only when all previously started cycles
have been elapsed or cancelled that the LED bars will change to green to let the user know that
the associated pan can now be used.
5. Any holding cycle can be cancelled at any time by a
U
3 second press
of the timer start/stop button.
6. If at any time during normal operation, one heater’s temperature is falling or rising out of the
allowed differential from set point (ready mode differential parameter), the displays will alternate
between current mode and "LO" or "HI" to alert the user that the heater’s temperature is too low
or too hi. This should remain until the heaters are back within the allowed differential.
CURRENT TEMPERATURES DISPLAY:
1. To view the heaters current temperature, press and hold the temperature button for 3 seconds.
The display will then alternate between "toP" for top heater and its current temperature value.
2. To view the bottom heater current temperature, press the temperature button again. The
display will then alternate between "bot" for bottom heater and its current temperature value.
3. A press of the temperature button will cycle between top and bottom current temperatures.
4. To exit temperature view mode and return to previous mode, press and hold the temperature
button.
