Carter-Hoffmann PH1890 - Manual (Page 2)

Heater/Cabinet
Operations
Calibrations
Do not locate this
unit under an over-
head ventilation
system or close to
other cooking
equipment. Fumes and grease
particles generated by other
equipment can be drawn by the
cooling fans into the control com-
partment of the heater. These
deposits should be avoided in
order to assure top performance
and longer life.
1. Before using, familiarize yourself with the heater controls.
2. Plug the heater into a proven compatible power source. The white indicator and the
fan will operate continuously whenever the heater is plugged in.
3. To preheat, turn the thermostat to number 4 or 5 on the knob. Be sure the
cabinet doors are fully.
4. Food serving temperature will vary with the mass, type and quantities of food
served. Set the thermostat for the desired holding setting. Turn clockwise to
increase the temperature and counter-clockwise to decrease the temperature.
5. During loading, the cabinet temperature will drop. Close door immediately after
loading and then wait 10-15 minutes until the cabinet recovers air temperature
before disconnecting from power source.
6. Be sure to remove the plug from the outlet and wind the cord on the cord bracket
located adjacent to the heating unit. Move the cart to the service area as quickly as
possible.
7. Upon reaching the serving area, unwind the power cord and reconnect the heater to
grounded compatible power source as soon as possible. Wait 5-10 minutes and
check the thermometer to see if the temperature is at the desired level. If not,
adjust the thermostat as required.
8. When removing items, start at the bottom and work to the top position. This keeps
food hotter and eliminates spillage onto lower items.
Never move cabinet
unless the door is
securely closed.
Serious damage to
hinges and door
may result if bumped into tables,
walls, or other equipment when
doors are open.
2
THERMOSTAT CALIBRATION
If additional heat range is required in the heating unit, unplug unit, remove thermo-
stat knob, insert small straight blade screwdriver into opening and turn limit control
set screw counter clockwise (not clockwise) one full turn. Replace thermostat
knob and turn clockwise to reach new maximum temperature. Repeat this until
desired temperature is reached. Each 1/4 turn of the calibration set screw will raise
the element heating capacity by approximately 25
o -35 o F.
If a reduction of heat is desired, turn limit control set screw clockwise one full turn.
Hold the door open allowing unit to cool until inside temperature is below the tem-
perature desired. Close the door and allow unit to rise to a new maximum temper-
ature. Repeat this until desired temperature is reached.
CAUTION
CAUTION
A
THERMOMETER CALIBRATION
Place an oven thermometer in the center of the cabinet. Turn heater on; turn ther-
mostat to maximum setting and wait approximately 45 minutes. Open the door and
check inside thermometer temperature. If recalibration is required, pry the plastic
cover off the dial body and with a small flat blade screwdriver, insert into the pointer
as shown. Carefully turn the pointer with your finger to the correct setting. Be
careful not to bend the pointer - it is very fragile.
B