OWNER’S MANUAL
MODEL DH5-3 & DH5-3B – HEATED HOLDING UNIT
160805 RV110612
1
Copyright © 2012 Marshall Air Systems, Inc.
All Rights Reserved.
PRE-INSTALLATION
1. The Heated Holding Unit is packaged to minimize the risk of shipping damage. Immediately upon receipt,
make certain to inspect the unit for damage.
FILE ALL CLAIMS WITH THE FREIGHT CARRIER.
2. Unpack and inspect the unit.
IF ANY CONCEALED DAMAGE, FILE ALL CLAIMS WITH THE FREIGHT
CARRIER.
FINAL INSTALLATION
1. Unpack unit and remove all protective paper or plastic covering from metal parts.
2. Place holding unit on stable base.
3. Plug unit into 120v receptacle rated for 20 amps.
TO USE THE HOLDING UNIT
1. Turn on the power switch. The unit is ready to use after a 30 minute preheat period.
2. The unit is factory set for a temperature of 250°f for both upper and bottom heaters. The factory set hold
time is 45 minutes with the alert happening at the 40:30 minute time. If a new setting is required, follow the
instructions in Figure 3 to adjust the settings.
DO NOT SET THE TEMPERATURE HIGHER THAN 290° F.
DOING SO WILL CAUSE DAMAGE TO THE UNIT.
3. The unit can hold up to three 1/3 size pans 2 1/2" deep, two 1/2 sheet pans, one full pan or one 1/2 sheet
pan per deck. Each controller display correspond to a 1/3 size pan. Place a product pan in one of the 3
possible positions and press the associated timer button (see User Interface below) to begin timer.
4. The corresponding display will then show the remaining holding time. Once the corresponding holding time
reaches 40:30 minutes of hold time it will sound a warning alert.
5. Once the corresponding holding time reaches the final minute, the display will change from minutes to
seconds.
6. Once the corresponding holding time reaches 0, a warning alert will sound. Press and release the
corresponding pan timer button to stop.
7. Any timer can be stopped at any time during the holding period, by pressing and holding the pan timer button
for 2.5 seconds.
TIMER/TEMPERATURE CONTROLLER OPERATION
