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III. Assembly and Exploded Product Views
All UPCH400, UPCH800 and UPCH1600 products are factory assembled for your
convenience. No assembly is required.
NOTE: Remove packing tape, tags or documents from inside compartments
before operating.
UPCH400 Diagram
Door Hinge
Knuckle
Heater
Digital
Thermometer
UPCH1600 Door
UPCH1600 Heater
110V or 220V Door
IV. Operating Instructions
NOTE: Units are designed to hold pre-heated hot food only. NEVER use to pre-heat
or re-heat food.
WARNING! Never use in wet or damp conditions. Refer to Section II for Safety
Instructions and Warnings.
1. Plug into main power supply 100-120 VAC (UPCH400/800/1600 models) or 200-230VAC
(UPCH4002/8002/16002 models) 50/60 HZ. Product label located on the heating unit inside
each door clearly indicates power supply information (see label samples below).
2. Red light on front of heated door indicates power ON for UPCH400 and UPCH800 models
– there is no power switch, unit turns on automatically when plugged into outlet. Power is
activated on UPCH1600 models by flipping power switch on front of heated door and will turn
red when power is ON. An amber light on the same switch indicates heater is active. This will
remain on until heater reaches factory set temperature and then will turn off. NOTE – heater
will switch on and off as necessary during operation to maintain factory set temperatures.
3. Pre-heat compartment(s) empty with door(s) closed for 45 minutes prior to loading hot food.
When inside door thermometer reads 150˚F (65˚C), insert pans of hot food into the carrier or
cart and latch door(s) to close tightly. NOTE: Cool metal pans or sheet pans to 250˚F (121,1˚C)
prior to placing onto plastic rails.
4. When transporting carrier/cart filled with hot food, unplug cord(s) and store on cord strap(s)
located on side of carrier or cart prior to moving. Insulated units will hold hot food hot for
4+ hours unplugged*.
5. If necessary, open pop vent located in door to release moisture/steam (UPCH400 and
UPCH800 doors only). Firmly grasp and pull outward until it clicks. To close vent,
push in until it clicks. UPCH1600 models have built in passive vent.
*Based on test with 6" (10 cm) each deep H-Pans with GripLids
(14,2 L) of 190˚F (87,7˚C) water held in compartment with door shut. Water temperature
dropped to 183˚F (83,9˚C) in 4 hours.
UPCH400, UPCH800
UPCH4002, UPCH8002
2
(110V)
(220V)
Hinge Pin
Door Latch
Thermometer
Socket
Thermometer
AC Inlet
Opening
AC Inlet
Thumb Screw
Hinge Pin
Nylon
Washer
5ea.
UPCH1600
Door Diagram
filled with approx. 15 qts.
®
UPCH1600 (110V)
UPCH16002 (220V)
Instructions for Resetting UPCH Heaters
Directions: This document covers door heaters manufactured with manually resettable
hi-limit thermostats only. Door heaters with this feature will have an access
hole in the cover of the heating unit and shall have a label "RESET" located
near the hole.
NOTE: Normal operation of the door heater is controlled by an automatic cycling "control
thermostat." Failure of the control thermostat may cause the temperature inside the
Cambro product to rise to temperatures that could cause damage to the plastic. A
manually resettable Hi-limit thermostat, set at 195˚F (90,6˚C) is built into the heater
circuit. This device will effectively remove power to the heater in the heating unit and
will not return it to normal operation until the temperature is lower than 185˚F (85˚C)
and the button on the hi-limit thermostat is depressed. Other factors can cause the
hi-limit thermostat to open up, such as fan failure or placing food pans with
temperatures higher than 190˚F (87,8˚C).
Nylon
CAUTION: Electrical Shock Hazard!
Thumbscrew
5ea.
Before attempting to reset the hi-limit thermostat, unplug the heater power cord from
the power source. Only use "non-metal" tools to depress the reset button.
White
Do not bypass or alter the thermostats in any way.
Door
1. Remove the power cord from the wall outlet or power supply and remove the other
Gasket
end from the front of the heater.
2. Open the door of the Cambro product and hold the heater firmly while you remove
the 5 thumb screws with washers holding the heater to the inner face of the door.
This may also be done after removing the door from the Cambro product or by
having another person hold the heater for you.
3. Once you have the heater on a stable surface with the metal section facing down,
locate the small round hole in the cover with RESET next to the hole (the RESET
word may not be on some units).
4. Using a small diameter round, non-metal item such as a rigid plastic stir stick,
guide it through the hole and depress the button on the hi-limit thermostat as
seen in the figure below.
5. Remove the item you used to depress the button and return the heater to the door,
replace the screws with the washers and tighten.
6. Plug the cord into the door front and then to the power source. Switch on the heater
(if required) and verify it is heating up to the normal temperature.
NOTE: After resetting the hi-limit thermostat, please verify that all fans are operating
and that the temperature does not go above 185˚F (85˚C). If the fans are not operat-
ing, the hi-limit will be activated again after the heat in the heater enclosure reaches
the set-point temperature. If the original cause was failure of the control thermostat
to limit the temperature to 170˚F (76,7˚C), the hi-limit will be activated again after the
heat in the heater enclosure reaches the set-point temperature. If the heater does not
work after depressing the reset button, try the procedure again or if it continues to stop
working after some time heating, do not bypass or alter the thermostats in any way
and contact your Cambro representative.
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