Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 1 of 13
INSTALLATION, OPERATION and MAINTENANCE
MANUAL for Cres Cor AQUA-TEMP HUMIDITY
CONVECTION and RETHERM OVENS with
MICROPROCESSOR CONTROLS
CO151FWUA12B
RO151FWUA18B
RO151FW1332B
CO151XWUA5B
CO151HWUA6B
CO151FPWUA12B
RO151FPWUA18B
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 3 of 13
INSTALLATION INSTRUCTIONS
VENTING YOUR OVEN:
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.
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.
UNIT SPECIFICATIONS: All units use three (3) elements (2670 watts each).
All units are rated 8200 watts. Water units have one (1) immersion element (1850 watts).
ELECTRICAL SPECS
CONVECTION OVENS
CMP MODEL NOS.
ELEC. LOAD
POWER SUPPLY REQUIREMENT
(AC SERVICE)
Volts
Ph
1
Hz.
Amps
39
Volts
208
Amps
50
Ph
1
Wire
Volts
208
NEMA
6-50P
CO151FWUA12B2081Q1
CO151FWUA12B2401Q1
CO151FWUA12B2083Q1
CO151FWUA12B2403Q1
RETHERM OVENS
208
240
208
240
60
60
60
60
3
3
4
4
1
3
3
34
240
50
1
240
6-50P
23
208
30
30
3
3
208
240
L15-30P
L15-30P
20
240
RO151FWUA18B2081Q1
RO151FWUA18B2401Q1
RO151FWUA18B2083Q1
RO151FWUA18B2403Q1
RO151FW1332B2081Q1
RO151FW1332B2401Q1
RO151FW1332B2083Q1
RO151FW1332B2403Q1
208
240
208
240
208
240
208
240
1
1
3
3
1
1
3
3
60
60
60
60
60
60
60
60
39
34
23
20
39
34
23
20
208
240
208
240
208
240
208
240
50
50
30
30
50
50
30
30
1
1
3
3
1
1
3
3
3
3
4
4
3
3
4
4
208
240
208
240
208
240
208
240
6-50P
6-50P
L15-30P
L15-30P
6-50P
6-50P
L15-30P
L15-30P
HALF-SIZE OVENS ARE RATED AT 4950 WATTS (THREE [3] HEATERS AT 1470 WATTS EACH)
CO151HWUA6B2081Q1
CO151HWUA6B2401Q1
CO151HWUA6B2083Q1
CO151HWUA6B2403Q1
CO151XWUA5B2081Q1
CO151XWUA5B2401Q1
CO151XWUA5B2083Q1
CO151XWUA5B2403Q1
208
240
208
240
208
240
208
240
1
1
3
3
1
1
3
3
60
60
60
60
60
60
60
60
24
21
15
13
24
21
15
13
208
240
208
240
208
240
208
240
30
30
20
20
30
30
20
20
1
1
3
3
1
1
3
3
3
3
4
4
3
3
4
4
208
240
208
240
208
240
208
240
6-30P
6-30P
L15-20P
L15-20P
6-30P
6-30P
L15-20P
L15-20P
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.
LOW WATER LIGHT:
When water needs to be added to the pan, the Low
Water Light will stay on until the pan is refilled.
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).
Use of treated water
is recommended for
proper operation and
to maintain warranty. It will reduce scaling.
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 4 of 13
OPERATING INSTRUCTIONS
Figure 1: Control Panel
HOW TO START UNIT:
COOKING TEMPERATURE:
(for first-time operation only)
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.
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.
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.
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.
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.
HOW TO SET THE CONTROL
FOR TIMED COOK OPERATION:
Press the SELECT button to choose the TIMED
mode.
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.
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.
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.
NOTE: Cold food is NOT to be added when
unit is operating in HOLD mode.
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 5 of 13
OPERATING INSTRUCTIONS, continued:
HOW TO SET THE CONTROL, continued
FOR PROBE COOK OPERATION:
Press the SELECT button to choose the probe
mode.
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.
PROBE TEMPERATURE:
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.
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.
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.
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.
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.
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.
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 6 of 13
OPERATING INSTRUCTIONS, continued
HOW TO OPERATE WITH FOOD, continued
HOW TO OPERATE WITH HUMIDITY:
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.
Air is VERY HOT when door is opened.
ꢀ Humidity control is on the right of the
control panel. See Figure 1
ꢀ Humidity may be used in all control
modes.
ꢀ Turn control knob to extreme counter-
clockwise position when humidity is not
needed.
NOTES: Cold food is NOT to be added when
unit is operating in HOLD mode.
For HOLD mode, preheat unit to 180°F/82°C
for 60 minutes.
ꢀ Make sure there is water in the water pan.
HOW TO PROOF:
1. Fill the water pan with three (3) gallons of
HOT water.
2. Set the humidity control at low to mid-
range.
HOW TO SHUT DOWN OVEN:
Push switch to “OFF”.
3. Set the Hold control to Nominal
120°F/49°C.
4. Preheat the oven at this setting for ½ hour.
5. Put in product. DO NOT use frozen
product.
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.
Listed below are typical thermostat settings.
Experiment with different settings to get the
temperature and humidity you need.
TEMPERATURE / HUMIDITY SETTINGS
HUMIDITY Dial Setting
HOLD Dial
Setting
Temp.,
°F/°C
1
2
3
4
5
6
7
8
9
10
140/60
150/66
160/71
180/82
200/93
15
10
5
5
5
20
15
10
5
25
20
15
10
5
35
25
20
15
10
50
35
30
20
15
65
55
40
25
20
85
70
60
30
25
100
100
80
50
35
100
100
100
70
100
100
100
95
5
50
75
NOTES: Values listed are % Relative Humidity.
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 7 of 13
MAINTENANCE INSTRUCTIONS
HOW TO CLEAN THE UNIT:
MAINTENANCE: CABINET
MAINTENANCE: WATER PAN
Drain, wipe and fill water pan daily.
(Clear vinyl drain-hose is provided).
1. Push hose onto drain nozzle under the base.
2. Turn knob to open the drain.
1. Wipe the inside of cabinet after daily use.
2. Leave doors slightly open to fully dry
interior.
To fully Dry Out:
1. Drain until 1/8” of water is left in pan bottom.
2. Turn humidity Thermostat to “High” until
water is gone.
BEFORE cleaning the cabinet:
1. Unplug cord from wall. Allow
cabinet to cool.
3. Wipe out pan.
2. Do NOT hose cabinet with water.
3. Do NOT get water on controls.
4. Do NOT use abrasives or harsh
chemicals.
Delime or descale water pan parts as
required, to prevent damaging build-up.
WARRANTY COVERAGE MAY BE
AFFECTED WITHOUT PROPER
CLEANING.
Cleaning Hints:
1. Use the mildest cleaning procedure that
will do the job.
2. Always rub in the direction of polish
lines to avoid scratching the surface.
3. Use only a soft cloth, sponge, fibrous
brushes, plastic or stainless steel pads for
cleaning and scouring.
4. Rinse thoroughly with fresh water after
every cleaning operation.
5. Always wipe dry to avoid water marks.
SOIL
CLEANER
METHOD
Routine
Cleaning
Soap, ammonia or mild
detergent* and water.
1. Sponge on with cloth
2. Rinse
CABINET
Stubborn Spots, Mild abrasive made for
Stains Stainless Steel.
Burnt on Foods Chemical oven cleaner
1. Apply with damp sponge or cloth.
2. Rub lightly.
Follow oven cleaner manufacturer’s
directions.
1. Swab or wipe with cloth.
2. Rinse and dry.
Inside and
Outside
or Grease
made for Stainless Steel.
(Stainless
Steel)
Hard Water
Spots & Scale
Vinegar
*MILD DETERGENTS INCLUDE SOAPS AND NON-ABRASIVE CLEANERS.
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 8 of 13
MAINTENANCE INSTRUCTIONS TROUBLE-SHOOTING GUIDE
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.
3. Switch is turned off.
2. Circuit breaker/fuse to wall outlet is blown.
4. Thermostat is turned off, or is set too low.
PROBLEM
Cabinet does not heat, or
doesn’t heat properly
POSSIBLE CAUSE
1. Fuse
2. Control
3. Sensor
4. Heater contactor
SOLUTION
1. Replace
2. Replace
3. Replace
4. Replace
5. Loose wiring at heater contactor
6. On/Off Switch
5. Replace
6. Replace
Blowers do not operate
1. On/Off Switch
1. Replace
2. Fuse
2. Replace
3. Blower
3. Replace
4. Control
4. Replace
Heater will not shut off
Vent fans does not shut
off
1. Control defective
1. Vent fan switch defective
2. Control compartment is still hot.
1. 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
Vent fans does not
operate
1. Fuse
2. Vent fan switch defective
3. Vent fan defective
1. Oven is in “PROBE” mode.
2. Control defective
Control will not switch
from “COOK” to “HOLD”
(timer mode)
Control will not switch
from “COOK” to “HOLD”
(probe mode)
1. Oven is in the “TIMED” mode
2. Probe not plugged in
3. Control defective
1. Switch to “PROBE” mode
2. Plug in probe
3. Replace
Control will not switch to
“COOK” (probe mode)
1. Oven in “TIMED” mode
2. Probe temperature setting lower than 2. Set probe temperature to
1. Switch to “PROBE” mode
probe temperature
desired temperature
3. Plug in probe
4. Replace
1. Replace
2. Replace
3. Probe not plugged in
4. Control defective
1. Water element defective
2. Humidity control
No Humidity
NOTE: Vent fans will not operate until the control compartment requires ventilation to limit
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.
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 9 of 13
MAINTENANCE INSTRUCTIONS
TROUBLE-SHOOTING GUIDE, continued
HOW TO ADJUST THE DOOR LATCH:
1. For vertical (up and down movement)
adjustment:
a. Loosen (2) screws located in magnetic
strike.
b. Move strike up or down for alignment
to magnet on latch.
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
adjust magnetism.
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.
FIGURE 2
Hot Unit Removal
REPLACEMENT PARTS: Include all information on nameplate when ordering parts.
Cabinet Replacement Parts
MODEL PRFIX CO-151, RO-151 (“Q” SERIES)
DESCRIPTION
Hot Unit, 208V, 1 Ph
Hot Unit, 208V, 3 Ph
Hot Unit, 240V, 1 Ph
Hot Unit 240V, 3 Ph
Door Latch Kit
-FPWUA (12), (18)
HU675013Q1
HU675015Q1
HU675014Q1
HU675016Q1
1006-120-001
1006-120-02
0519-074
-FWUA (12), (18)
HU675025Q1
HU675027Q1
HU675026Q1
HU675028Q1
1006-120-01
1006-120-02
0519-074
-FW1332
HU675029Q1
HU675031Q1
HU675030Q1
HU675032Q1
1006-120-001
1006-120-02
0519-074
-HWUA6
HU675037Q1
HU675039Q1
HU675038Q1
HU675040Q1
1006-120-01
1006-120-02
0519-074
-XWUA5
HU675037Q1
HU675039Q1
HU675038Q1
HU675040Q1
1006-120-01
1006-120-02
0519-074
Door Strike
Door Hinge
Door Assembly
Door Gasket
1221-525
0861-185
1221-525
0861-185
1221-543
0861-184
1221-525
0861-185
1221-545
0861-250
Angles or Racks
0621-281-SS
0621-281-SS
1104-108
0621-281-SS
0621-281-SS
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 10 of 13
REPLACEMENT PARTS:
Include all information on nameplate when ordering parts.
Figure 2: Control Panel
Hot Unit Replacement Parts
ITEM DESCRIPTION
1. Switch (On/Off)
2. Microprocessor Control
3. Vent Fan
4. Fan Guard
5. Fuse
CMP Part No.
0808-113-01
0848-070-03
0769-174
0769-167
0807-058
ITEM DESCRIPTION
PARTS for 8200W, 1-PH UNITS
21. Power Cord
Power Cord (Pass-thru)
22. Heater Kit, 208V
Heater Kit, 240V
CMP Part No.
0810-124
0811-161
0811-261
0811-262
0818-061
Fuse Holder
0807-048
23. Strain Relief
6. Blower Kit
7. Contactor
0769-006K
0857-026
PARTS for 8200W, 3-PH UNITS
21. Power Cord
Power Cord (Pass-thru)
22. Heater Kit, 208V
Heater Kit, 240V
8. Terminal Block, front
9. Terminal Block, rear
10. Switch, Fan
11. Hi Limit Switch (Pass-thru)
Hi Limit Switch
12. Sensor
13. Sensor Bushing
14. Connector, probe
Probe 1.5” long
Probe 6” long
0852-096
0852-091
0848-034
0848-077
0848-079
0848-073-01
0818-014
0848-059-01
0848-059-02
0848-059-04
0857-125
0810-132
0811-162
0811-261
0811-262
0818-050
23. Strain Relief
PARTS for 4950W, 1-PH UNITS
21. Power Cord
22. Heater Kit, 208V
Heater Kit, 240V
0810-163
0811-020
0811-020-01
0818-050
15. Relay
23. Strain Relief
16. Thermostat, Humidity
17. Knob
18. Pilot Light
0848-008-1AC
0595-061
0766-095
PARTS for 4950W, 3-PH UNITS
21. Power Cord
0810-164
0811-020
0811-020-01
0818-050
19. Receptacle (6 pin)
20. Resistor
0810-154-02
0857-129
0857-122
22. Heater Kit, 208V
Heater Kit, 240V
23. Strain Relief
•
Float Switch
•
Water pan Kit, 208V
Heater, 208V
0756-030
0811-278
•
•
Water pan Kit, 240V
Heater, 240V
0756-031
0811-271
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 11 of 13
REPLACEMENT PARTS
For “PASS-THRU” OVENS CO or RO151FPWUA SERIES:
Include all information on nameplate when ordering parts.
FIGURE 3;
Hot Unit w/o top cover
(For parts description,
refer to page 10)
FIGURE 4;
Bottom of Hot Unit,
Cover Removed
(For parts description,
refer to page 10)
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 12 of 13
REPLACEMENT PARTS
For OVENS CO or RO151FPWUA SERIES:
Include all information on nameplate when ordering parts.
FIGURE 5;
Hot Unit w/o top cover
(For parts description,
refer to page 10)
FIGURE 6;
Bottom of Hot Unit,
Cover Removed
(For parts description,
refer to page 10)
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Ovens Humidity with
FL-2267
Microprocessor Controls
5925 Heisley Road • Mentor, OH 44060-1833
877/CRES COR (273-7267) • 440/350-1100
Rev. 8 (1/05)
Page 13 of 13
WIRING DIAGRAM
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