1. The purpose of ventilating hoods is to direct and
capture smoke, grease-laden vapors, heat, odors, or
fumes.
2. Low temperature equipment (maximum temperature
250°F/121°C) does not produce heat, odors, fumes,
grease-laden vapors or smoke and is not required to
be vented.
UNIT SPECIFICATIONS:
All units are rated 8200 watts. Water units have one (1) immersion element (1850 watts).
All units use three (3) elements (2670 watts each).
ELECTRICAL SPECS
(AC SERVICE)
Volts Ph Hz. Amps Volts Amps Ph Wire Volts NEMA
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
1
1
3
3
1
1
3
3
1
1
3
3
1
1
3
3
1
1
3
3
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
ELEC. LOAD POWER SUPPLY REQUIREMENT
39
34
23
20
39
34
23
20
39
34
23
20
24
21
15
13
24
21
15
13
All models are designed for AC Service. Model numbers may have the letters: L, M, 2M, or S.
HOW TO INSTALL CABINETS:
1. Remove all packing material from inside and
outside of cabinet.
2. Position cabinet on level floor; install the
cabinet interior (pan slides) if not already
installed.
3. Plug power cord into proper wall receptacle.
4. Fill water pan with three (3) gallons of HOT
water (see CAUTION
).
3. Most jurisdictions consider our low-temperature
ovens (maximum temperature is 350°F/177°C) as
low-heat appliances not requiring vent hoods.
4. Installation must conform with local codes. The
authority having jurisdiction of enforcement of the
codes will have the responsibility for making
interpretations of the rules.
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
50
50
30
30
50
50
30
30
50
50
30
30
30
30
20
20
30
30
20
20
1
1
3
3
1
1
3
3
1
1
3
3
1
1
3
3
1
1
3
3
3
3
4
4
3
3
4
4
3
3
4
4
3
3
4
4
3
3
4
4
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
LOW WATER LIGHT:
When water needs to be added to the pan, the Low
Water Light will stay on until the pan is refilled.
Use of treated water
is recommended for
proper operation and
to maintain warranty. It will reduce scaling.
6-50P
6-50P
L15-30P
L15-30P
6-50P
6-50P
L15-30P
L15-30P
6-50P
6-50P
L15-30P
L15-30P
6-30P
6-30P
L15-20P
L15-20P
6-30P
6-30P
L15-20P
L15-20P
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Fax: 440/350-7267 • www.crescor.com
OPERATING INSTRUCTIONS
HOW TO START UNIT:
(for first-time operation only)
A new oven needs to “burn off” factory oils and
glue before it’s first use. Do NOT load food into oven until this has been done!
1. Push power switch to “ON”.
2. Press the SELECT button; choose the
TIMED mode.
3. Press the COOK button and set the
temperature to 350°F/177°C.
4. Press the HOLD button and set the
temperature to 150°F/66°C.
5. Press the PROBE/TEMP button and set the
timer to one (1) hour.
Allow oven to run automatically for one (1)
hour of COOK/RETHERM cycle and 30
minutes of HOLD cycle.
HOW TO SET THE CONTROL
FOR TIMED COOK OPERATION:
Press the SELECT button to choose the TIMED
mode.
COOKING TIME:
1. Press the PROBE/TIME button. The display
will show the cook/retherm time.
2. Use the UP and DOWN arrows to set the
desired time.
3. Press the SET button to enter the time into
the control.
NOTE: Cold food is NOT to be added when
unit is operating in HOLD mode.
Microprocessor Controls
Figure 1: Control Panel
COOKING TEMPERATURE:
1. Press the COOK button and the display will
show the cook/retherm temperature.
2. Use the UP and DOWN arrows to set the
desired temperature.
3. Press the SET button to enter the
temperature into the control.
NOTE: Press the OVEN TEMP button at any
time to view the actual oven temperature.
HOLDING TEMPERATURE:
1. Press the HOLD button; the display will
show the holding temperature.
2. Use the UP and DOWN arrows to set the
desired temperature.
NOTE: Proper food holding temperature is
140°F/60°C or higher.
3. Press the SET button to enter the
temperature into the control.
4. Press the START button and the display
shows the remaining time in the
cook/retherm cycle.
NOTES: The control will beep after it times
down to zero; it will then automatically switch
to the HOLD mode. The display will then show
the hold setpoint temperature.
For HOLD mode, preheat unit to 180°F/82°C
for 60 minutes.
Ovens Humidity with
Rev. 8 (1/05) Page 4 of 13
FL-2267
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Fax: 440/350-7267 • www.crescor.com
OPERATING INSTRUCTIONS, continued:
Ovens Humidity with
Microprocessor Controls
Rev. 8 (1/05) Page 5 of 13
FL-2267
HOW TO SET THE CONTROL, continued
FOR PROBE COOK OPERATION:
Press the SELECT button to choose the probe
mode.
PROBE TEMPERATURE:
1. Press the PROBE/TIME button. The display
will show the probe setpoint temperature.
2. Use the UP and DOWN arrows to set the
desired temperature.
3. Press the SET button to enter the
temperature into the control.
NOTE: Press the OVEN TEMP button at any
time to view the actual oven temperature.
Press the START button and the display will
show the actual probe temperature.
NOTE: The control will beep when the probe
setpoint temperature has been reached and then
will automatically switch to HOLD mode. The
display will then show the hold setpoint
temperature.
To manually end the COOK/RETHERM,
PROBE, or HOLD mode:
Press the STOP button during any of the above
modes and the control will end that mode. If in
the Cook/Retherm or Probe mode, the control
will automatically switch into the HOLD mode.
HOW TO OPERATE WITH FOOD:
Manual (Timed mode) Operation
See “HOW TO SET CONTROL” (on page 4)
for programming instructions.
1. Push power switch to “ON”.
2. Press the SELECT button and choose the
TIMED mode.
3. Press the COOK button and set to desired
temperature.
4. Press the PROBE/TIME button and set to
the desired time.
5. Press the HOLD button; set desired
temperature.
6. Place the food into oven. Close door and
double check cooking time and
temperatures. Then press the START button
to start the cooking/retherm cycle and the
Cook LED will light up.
7. The oven will beep and automatically switch
to the HOLD mode at the end of the cooking
cycle. The Cook lamp will go out and the
Hold lamp will light up.
Probe Cooking
See “HOW TO SET CONTROL” (on page 5)
for programming instructions.
1. Push power switch to “ON”.
2. Press the SELECT button and choose the
Probe mode.
3. Insert the probe jack into the receptacle
located inside the oven top, near the
fans. The probe temperature display will
show the digital temperature of the
probe.
4. Put sanitized probe into center of food
product. Make sure food is in the center
of the pan and the pan is centered in the
oven.
5. Press the start button. The cook lamp
will light up and the display will show
the internal temperature of the food
being cooked.
NOTE: Do NOT change the mode of the
controls (probe or timed) while oven is
operating in a Cook/Retherm cycle. Oven must
be in the HOLD cycle to change the timer or
probe operation.
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Fax: 440/350-7267 • www.crescor.com
OPERATING INSTRUCTIONS, continued
HOW TO OPERATE WITH FOOD, continued
HOW TO SET HOLD-ONLY MODE:
1. Push power switch to “ON”.
2. Press the STOP button and oven will switch
to HOLD cycle.
3. Press the HOLD button and set the desired
hold temperature.
NOTES: Cold food is NOT
unit is operating in HOLD mode.
For HOLD mode, preheat unit to 180°F/82°C
for 60 minutes.
HOW TO SHUT DOWN OVEN:
Push switch to “OFF”.
CAUTION: Ventilating fans will continue to
run until the cabinet is cool. Do NOT
disconnect the power supply to the cabinet
while the ventilating fan is still operating.
If unit gets too hot or won’t shut off, disconnect power at branch panel. DO
NOT
UNPLUG CORD!
If hot unit is NOT working, first check the following causes:
1. Cord is unplugged from wall outlet.
2. Circuit breaker/fuse to wall outlet is blown.
3. Switch is turned off.
4. Thermostat is turned off, or is set too low.
PROBLEM POSSIBLE CAUSE SOLUTION
Cabinet does not heat, or
doesn’t heat properly
Blowers do not operate 1. On/Off Switch
Heater will not shut off 1. Control defective 1. Replace
Vent fans does not shut
off
Vent fans does not
operate
Control will not switch
from “COOK” to “HOLD”
(timer mode)
Control will not switch
from “COOK” to “HOLD”
(probe mode)
Control will not switch to
“COOK” (probe mode)
No Humidity 1. Water element defective
1. Fuse
2. Control
3. Sensor
4. Heater contactor
5. Loose wiring at heater contactor
6. On/Off Switch
2. Fuse
3. Blower
4. Control
1. Vent fan switch defective
2. Control compartment is still hot.
1. Fuse
2. Vent fan switch defective
3. Vent fan defective
1. Oven is in “PROBE” mode.
2. Control defective
1. Oven is in the “TIMED” mode
2. Probe not plugged in
3. Control defective
1. Oven in “TIMED” mode
2. Probe temperature setting lower than
probe temperature
3. Probe not plugged in
4. Control defective
2. Humidity control
1. Replace
2. Replace
3. Replace
4. Replace
5. Replace
6. Replace
1. Replace
2. Replace
3. Replace
4. Replace
1. Replace
2. Wait until it cools
Check “Heaters will not shutoff”
1. Replace
2. Replace
3. Replace
1. Switch to “TIMED” mode
2. Replace
1. Switch to “PROBE” mode
2. Plug in probe
3. Replace
1. Switch to “PROBE” mode
2. Set probe temperature to
desired temperature
3. Plug in probe
4. Replace
1. Replace
2. Replace
NOTE:
temperatures. Replacement of electrical components must be done by a qualified electrician. Refer to
our Service Agency list, FL-1400 (found in the back of this manual), of authorized service centers.
Instructions for replacing parts are included in replacement parts list.
Vent fans will not operate until the control compartment requires ventilation to limit
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Fax: 440/350-7267 • www.crescor.com
MAINTENANCE INSTRUCTIONS
HOW TO ADJUST THE DOOR LATCH:
1. For vertical (up and down movement)
adjustment:
a. Loosen (2) screws located in magnetic
b. Move strike up or down for alignment
c. Tighten screws to secure
2. For horizontal (greater or lesser magnetic
draw) adjustment:
a. Loosen (4) screws in door latch.
b. Move latch forward or backward to
c. Tighten screws to secure.
HOT UNIT REMOVAL:
1. Disconnect power cord from wall outlet.
2. For half-size model: CO151HW Series,
remove screws around top cover.
3. Disconnect the yellow cord between top and
bottom, in the back of the cabinet (see
Figure 2).
4. Lift off Hot Unit.
TROUBLE-SHOOTING GUIDE, continued
strike.
to magnet on latch.
adjust magnetism.
Ovens Humidity with
Microprocessor Controls
Rev. 8 (1/05) Page 9 of 13
FL-2267
FIGURE 2
Hot Unit Removal
REPLACEMENT PARTS: Include all information on nameplate when ordering parts.