Cres Cor CO151FPWUA12B User manual

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 1 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
INSTALLATION, OPERATION and MAINTENANCE
MANUAL for Cres Cor AQUA-TEMP HUMIDITY
CONVECTION and RETHERM OVENS with
MICROPROCESSOR CONTROLS
CO151FWUA12B CO151XWUA5B CO151FPWUA12B
RO151FWUA18B CO151HWUA6B RO151FPWUA18B
RO151FW1332B

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 2 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
TABLE OF CONTENTS
SUBJECT PAGE
INSTALLATION INSTRUCTIONS 3
OPERATING INSTRUCTIONS 4, 5
Illustration, Figure 1 4
MAINTENANCE INSTRUCTIONS
How to Clean the Unit 6
Trouble Shooting Guide 7, 8
Replacement Parts 8, 9
Illustrations; Hot Unit 10
Wiring Diagrams
(Single Phase) 11
(Three Phase) 12
TIMER PROGRAMMING FL-2222
SERVICE POLICY and AGENCY LIST FL-1400

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 3 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
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
(AC SERVICE) ELEC. LOAD POWER SUPPLY REQUIREMENT
CONVECTION OVENS
CMP MODEL NOS. Volts Ph Hz. Amps Volts Amps Ph Wire Volts NEMA
CO151FWUA12B2081Q1
CO151FWUA12B2401Q1
208
240
1
1
60
60
39
34
208
240
50
50
1
1
3
3
208
240
6-50P
6-50P
CO151FWUA12B2083Q1
CO151FWUA12B2403Q1
208
240
3
3
60
60
23
20
208
240
30
30
3
3
4
4
208
240
L15-30P
L15-30P
RETHERM OVENS
RO151FWUA18B2081Q1
RO151FWUA18B2401Q1
208
240
1
1
60
60
39
34
208
240
50
50
1
1
3
3
208
240
6-50P
6-50P
RO151FWUA18B2083Q1
RO151FWUA18B2403Q1
208
240
3
3
60
60
23
20
208
240
30
30
3
3
4
4
208
240
L15-30P
L15-30P
RO151FW1332B2081Q1
RO151FW1332B2401Q1
208
240
1
1
60
60
39
34
208
240
50
50
1
1
3
3
208
240
6-50P
6-50P
RO151FW1332B2083Q1
RO151FW1332B2403Q1
208
240
3
3
60
60
23
20
208
240
30
30
3
3
4
4
208
240
L15-30P
L15-30P
HALF-SIZE OVENS ARE RATED AT 4950 WATTS (THREE [3] HEATERS AT 1470 WATTS EACH)
CO151HWUA6B2081Q1
CO151HWUA6B2401Q1
208
240
1
1
60
60
24
21
208
240
30
30
1
1
3
3
208
240
6-30P
6-30P
CO151HWUA6B2083Q1
CO151HWUA6B2403Q1
208
240
3
3
60
60
15
13
208
240
20
20
3
3
4
4
208
240
L15-20P
L15-20P
CO151XWUA5B2081Q1
CO151XWUA5B2401Q1
208
240
1
1
60
60
24
21
208
240
30
30
1
1
3
3
208
240
6-30P
6-30P
CO151XWUA5B2083Q1
CO151XWUA5B2403Q1
208
240
3
3
60
60
15
13
208
240
20
20
3
3
4
4
208
240
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.
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).
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.

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 4 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
OPERATING INSTRUCTIONS
Figure 1: Control Panel
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.
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
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 5 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
OPERATING INSTRUCTIONS, continued:
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.

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 6 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
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 to be added when
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.
HOW TO OPERATE WITH HUMIDITY:
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.
 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.
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.
Listed below are typical thermostat settings.
Experiment with different settings to get the
temperature and humidity you need.
TEMPERATURE / HUMIDITY SETTINGS
HOLD Dial
Setting HUMIDITY Dial Setting
Temp.,
°F/°C 1 2 3 4 5 6 7 8 9 10
140/60 15 20 25 35 50 65 85 100 100 100
150/66 10 15 20 25 35 55 70 100 100 100
160/71 5 10 15 20 30 40 60 80 100 100
180/82 5 5 10 15 20 25 30 50 70 95
200/93 5 5 5 10 15 20 25 35 50 75
NOTES: Values listed are % Relative Humidity.
OPERATING INSTRUCTIONS, continued

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 7 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
MAINTENANCE INSTRUCTIONS
HOW TO CLEAN THE UNIT:
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.
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.
3. Wipe out pan.
Delime or descale water pan parts as
required, to prevent damaging build-up.
WARRANTY COVERAGE MAY BE
AFFECTED WITHOUT PROPER
CLEANING.
MAINTENANCE: CABINET
1. Wipe the inside of cabinet after daily use.
2. Leave doors slightly open to fully dry
interior.
BEFORE cleaning the cabinet:
1. Unplug cord from wall. Allow
cabinet to cool.
2. Do NOT hose cabinet with water.
3. Do NOT get water on controls.
4. Do NOT use abrasives or harsh
chemicals.
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
Stubborn Spots,
Stains
Mild abrasive made for
Stainless Steel.
1. Apply with damp sponge or cloth.
2. Rub lightly.
Burnt on Foods
or Grease
Chemical oven cleaner
made for Stainless Steel.
Follow oven cleaner manufacturer’s
directions.
CABINET
Inside and
Outside
(Stainless
Steel) Hard Water
Spots & Scale Vinegar 1. Swab or wipe with cloth. 2. Rinse and dry.
*MILD DETERGENTS INCLUDE SOAPS AND NON-ABRASIVE CLEANERS.

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 8 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
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
1. Fuse
2. Control
3. Sensor
4. Heater contactor
5. Loose wiring at heater contactor
6. On/Off Switch
1. Replace
2. Replace
3. Replace
4. Replace
5. Replace
6. Replace
Blowers do not operate 1. On/Off Switch
2. Fuse
3. Blower
4. Control
1. Replace
2. Replace
3. Replace
4. Replace
Heater will not shut off 1. Control defective 1. Replace
Vent fans does not shut
off
1. Vent fan switch defective
2. Control compartment is still hot.
1. Replace
2. Wait until it cools
Check “Heaters will not shutoff”
Vent fans does not
operate
1. Fuse
2. Vent fan switch defective
3. Vent fan defective
1. Replace
2. Replace
3. Replace
Control will not switch
from “COOK” to “HOLD”
(timer mode)
1. Oven is in “PROBE” mode.
2. Control defective
1. Switch to “TIMED” mode
2. Replace
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
probe temperature
3. Probe not plugged in
4. Control defective
1. Switch to “PROBE” mode
2. Set probe temperature to
desired temperature
3. Plug in probe
4. Replace
No Humidity 1. Water element defective
2. Humidity control
1. Replace
2. Replace
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.
MAINTENANCE INSTRUCTIONS TROUBLE-SHOOTING GUIDE

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 9 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
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 -FPWUA (12), (18) -FWUA (12), (18) -FW1332 -HWUA6 -XWUA5
Hot Unit, 208V, 1 Ph HU675013Q1 HU675025Q1 HU675029Q1 HU675037Q1 HU675037Q1
Hot Unit, 208V, 3 Ph HU675015Q1 HU675027Q1 HU675031Q1 HU675039Q1 HU675039Q1
Hot Unit, 240V, 1 Ph HU675014Q1 HU675026Q1 HU675030Q1 HU675038Q1 HU675038Q1
Hot Unit 240V, 3 Ph HU675016Q1 HU675028Q1 HU675032Q1 HU675040Q1 HU675040Q1
Door Latch Kit 1006-120-001 1006-120-01 1006-120-001 1006-120-01 1006-120-01
Door Strike 1006-120-02 1006-120-02 1006-120-02 1006-120-02 1006-120-02
Door Hinge 0519-074 0519-074 0519-074 0519-074 0519-074
Door Assembly 1221-525 1221-525 1221-543 1221-525 1221-545
Door Gasket 0861-185 0861-185 0861-184 0861-185 0861-250
Angles or Racks 0621-281-SS 0621-281-SS 1104-108 0621-281-SS 0621-281-SS
MAINTENANCE INSTRUCTIONS
TROUBLE-SHOOTING GUIDE, continued

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 10 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
REPLACEMENT PARTS:
Include all information on nameplate when ordering parts.
Figure 2: Control Panel
Hot Unit Replacement Parts
ITEM DESCRIPTION CMP Part No. ITEM DESCRIPTION CMP Part No.
1. Switch (On/Off) 0808-113-01 PARTS for 8200W, 1-PH UNITS
2. Microprocessor Control 0848-070-03 21. Power Cord 0810-124
3. Vent Fan 0769-174 Power Cord (Pass-thru) 0811-161
4. Fan Guard 0769-167 22. Heater Kit, 208V 0811-261
5. Fuse 0807-058 Heater Kit, 240V 0811-262
Fuse Holder 0807-048 23. Strain Relief 0818-061
6. Blower Kit 0769-006K
7. Contactor 0857-026 PARTS for 8200W, 3-PH UNITS
8. Terminal Block, front 0852-096 21. Power Cord 0810-132
9. Terminal Block, rear 0852-091 Power Cord (Pass-thru) 0811-162
10. Switch, Fan 0848-034 22. Heater Kit, 208V 0811-261
11. Hi Limit Switch (Pass-thru) 0848-077 Heater Kit, 240V 0811-262
Hi Limit Switch 0848-079 23. Strain Relief 0818-050
12. Sensor 0848-073-01
13. Sensor Bushing 0818-014 PARTS for 4950W, 1-PH UNITS
14. Connector, probe 0848-059-01 21. Power Cord 0810-163
Probe 1.5” long 0848-059-02 22. Heater Kit, 208V 0811-020
Probe 6” long 0848-059-04 Heater Kit, 240V 0811-020-01
15. Relay 0857-125 23. Strain Relief 0818-050
16. Thermostat, Humidity 0848-008-1AC
17. Knob 0595-061 PARTS for 4950W, 3-PH UNITS
18. Pilot Light 0766-095 21. Power Cord 0810-164
19. Receptacle (6 pin) 0810-154-02 22. Heater Kit, 208V 0811-020
20. Resistor 0857-129 Heater Kit, 240V 0811-020-01
• Float Switch 0857-122 23. Strain Relief 0818-050
• Water pan Kit, 208V 0756-030
Heater, 208V 0811-278
• Water pan Kit, 240V 0756-031
• Heater, 240V 0811-271

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 11 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
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)

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 12 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
REPLACEMENT PARTS
For OVENS CO or RO151FPWUA SERIES:
Include all information on nameplate when ordering parts.
FIGURE 6;
Bottom of Hot Unit,
Cover Removed
(For parts description,
refer to page 10)
FIGURE 5;
Hot Unit w/o top cover
(For parts description,
refer to page 10)

Ovens Humidity with
Microprocessor Controls FL-2267
Rev. 8 (1/05) Page 13 of 13
5925 Heisley Road •Mentor, OH 44060-1833
877/CRES COR (273-7267) •440/350-1100
Fax: [phone] •www.crescor.com
WIRING DIAGRAM