Ovens
FL-2270
Rev. 10 (4/08)
Page 1 of 13
5925 Heisley Road • Mentor, OH 44060-1833
INSTALLATION, OPERATION and MAINTENANCE
MANUAL for Cres Cor
AQUA
TEMP HUMIDITY
CONVECTION and RETHERM OVENS
CO151HWUA6B
CO151HW189B
CO151XWUA5B
CO151XW185B
CO151FWUA12B
CO151FW1818B
CO151FPWUA12B
RO151FWUA18B
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Ovens
FL-2270
Rev. 10 (4/08)
Page 3 of 13
5925 Heisley Road • Mentor, OH 44060-1833
INSTALLATION INSTRUCTIONS
VENTING YOUR OVEN:
1. The purpose of ventilating hoods is to direct and
capture smoke, grease-laden vapors, heat, odors, or
fumes.
3. Most jurisdictions consider our low-temperature ovens
(maximum temperature is 350°F/177°C) as low-heat
appliances not requiring vent hoods.
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.
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)
POWER SUPPLY REQUIREMENT
ALL 3 PHASE IS 3 WIRE + GROUND
MODEL NOS.
ELEC. LOAD
CONVECTION OVENS Volts
Ph
Hz.
Amps Volts Amps
Ph
Volts
NEMA
CO151FWUA12B2081
CO151FWUA12B2401
CO151FWUA12B2083
CO151FWUA12B2403
208
240
208
240
1
1
3
3
60
60
60
60
39
34
23
20
208
240
208
240
50
50
30
30
1
1
3
3
208
240
208
240
6-50P
6-50P
L15-30P
L15-30P
RETHERM OVENS
RO151FWUA18B2081
RO151FWUA18B2401
RO151FWUA18B2083
RO151FWUA18B2403
RO151FW1332B2081
RO151FW1332B2401
RO151FW1332B2083
RO151FW1332B2403
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
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 4700 watts (Three [3] heaters at 1470 watts each)
CO151HWUA6B2081
CO151HWUA6B2401
CO151HWUA6B2083
CO151HWUA6B2403
CO151XWUA5B2081
CO151XWUA5B2401
CO151XWUA5B2083
CO151XWUA5B2403
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
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: P, L, M, Z or S.
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Ovens
FL-2270
Rev. 10 (4/08)
Page 4 of 13
5925 Heisley Road • Mentor, OH 44060-1833
OPERATING INSTRUCTIONS
1
5
7
2
4
3
6
TM
5
Roast-N-Hold +
( I )
160
250
230
270
6
4
190
130
210
MEDIUM
7
290
310
330
350 F
FLASHING TIMIMG
-
ON
190
3
220
100
160
LOW
8
180
PROOF
140
170
150
R
190
200
120
100
HIGH
9
2
LOW
WATER
HOURS
MINUTES
70
250 F
210
80
60
220
20
DRY
MOIST
F
1
10
C
START
STOP
( 0 )
OFF
TIME SELECT
POWER
HOLD
COOK / RETHERM
HUMIDITY
TIMER
FIGURE 1: Control Panel
9
8
PARTS DESCRIPTION
1. Switch – “ON-OFF”
2. Timer – Digital
3. “Low Water” Light
4. Thermometer
6. Thermostat – “Cook/Retherm”
7. Thermostat – “Humidity”
8. Yellow Light – “Hold”
9. Green Light – “Cook/Retherm”
5. Thermostat – “Hold”
HOW TO INSTALL CABINETS:
LOW WATER LIGHT:
When water needs to be added to the pan, the Low Water
Light will stay on until the pan is refilled.
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).
CAUTION
Use of treated water is recommended for
proper operation and to maintain warranty. It
will reduce scaling.
HOW TO START UNIT
HOW TO SET TIMER:
A. Press the UP arrow button (on the TIMER) to increase
the time. The longer the button is held down, the faster
the time will increase. Pressing the DOWN arrow
button (using the same method) will cause the time to
decrease.
(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 switch to “ON”.
B. Press START/STOP button on Timer to begin cooking
cycle. GREEN roast light will light up. Timer will
count down to 0.00. The timing light on the timer will
flash.
2. Set the Cook/Retherm thermostats to 350°F/177°C.
3. Set the Hold thermostat to 150°F/66°C.
4. Set the timer to one (1) hour.
C. Cooking time can be changed while oven is in any
mode.
5. Allow oven to run automatically for one (1) hour of
Cook/Retherm cycle and 30 minutes of Hold cycle.
(1) Press START/STOP button.
(2) Adjust time by using UP and DOWN arrow-
buttons.
WARNING
(3) Press START/STOP button to restart oven.
Air is VERY HOT when door is opened.
NOTE: Cold food is NOT to be added when unit is operating on HOLD mode.
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Ovens
FL-2270
Rev. 10 (4/08)
Page 5 of 13
5925 Heisley Road • Mentor, OH 44060-1833
OPERATING INSTRUCTIONS (continued)
HOW TO START UNIT
(After first-time operation):
Push POWER switch “ON”.
HOW TO COOK, continued
3. Set Humidity control to the desired relative humidity
you need in the oven. This setting is for both COOK
and HOLD cycles.
Preheat:
4. Set Timer for the cooking time. Press timer start
button. The oven will automatically switch to the pre-
set hold temperature after cooking time has expired.
In HOLD mode, preheat unit to 180°F/82°C for 60
minutes.
STANDARD OPERATION
HOW TO PROOF:
1. Set Cook/Retherm thermostat to the cooking
temperature you need.
1. Fill the water pan with three (3) gallons of HOT
water.
2. Set Hold thermostat to the warming temperature
you need after the cook cycle. Proper food holding
temperature is 140°F/60°C or higher.
3. Set Timer for the cooking time. Press timer start
button. The oven will automatically switch to the pre-
set hold temperature after cooking time has expired.
2. Set the Humidity control at low to mid-range.
3. Set the Hold control to Proof.
4. Preheat the oven at this setting for ½ hour.
5. Put in product. DO NOT use frozen product.
6. Listed below are typical thermostat settings.
Experiment with different settings to get the
temperature and humidity that you need.
COOK (HUMIDITY) OPERATION
HOW TO COOK:
TO SHUT DOWN UNIT:
Push POWER switch to “OFF”.
1. Set Cook/Retherm thermostat to the cooking
temperature you need.
NOTE: Ventilating fans will continue to run until cabinet
is cool. Do NOT disconnect the power supply to the
cabinet while the ventilating fan is still operating.
2. Set Hold thermostat to the warming temperature you
need after the cook cycle.
TEMPERATURE / HUMIDITY SETTINGS
HOLD
HUMIDITY
Dial Setting
Dial Setting
Temp.,°F/°C
140/60
1
15
10
5
2
20
15
10
5
3
4
5
6
7
8
9
10
100
100
100
95
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
100
100
100
70
150/66
160/71
180/82
5
50
200/93
5
5
35
50
75
Values Listed are % Relative Humidity.
NOTE: Cold food is NOT to be added to
the unit when operating in the HOLD mode.
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Ovens
FL-2270
Rev. 10 (4/08)
Page 6 of 13
5925 Heisley Road • Mentor, OH 44060-1833
OPERATING INSTRUCTIONS (continued)
MAINTENANCE: WATER PAN
MAINTENANCE: CABINET
Drain, wipe and fill water pan daily. (Clear vinyl drain-
hose is provided).
1. Wipe the inside of cabinet after daily use.
2. Leave doors slightly open to fully dry interior.
1. Push hose into drain nozzle under the base.
2. Turn knob to open the drain.
WARNING
BEFORE cleaning the cabinet:
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.
1. Unplug cord from wall. Allow cabinet to
cool.
3. Wipe out pan.
2. Do NOT hose cabinet with water.
CAUTION
Delime or descale water pan parts as required,
to prevent damaging build-up.
3. Do NOT use abrasives or harsh
chemicals.
WARRANTY COVERAGE MAY BE AFFECTED
WITHOUT PROPER CLEANING.
Cleaning Hints:
3. Use only a soft cloth, sponge, fibrous brushes, plastic
or stainless steel pad for cleaning and scouring.
1. Use the mildest cleaning procedure that will do the
job.
4. Rinse thoroughly with fresh water after every cleaning
operation.
2. Always rub in the direction of the polish lines to avoid
scratching the surface.
5. Always wipe dry to avoid water marks.
HOW TO CLEAN THE UNIT:
SOIL
CLEANER
Soap, Ammonia, or mild
*detergent and water.
METHOD
1. Sponge on with cloth.
2. Rinse with water.
3. Wipe dry.
ROUTINE
CLEANING
CABINET
STUBBORN SPOTS
AND STAINS
Mild abrasive made for
stainless steel.
1. Apply with damp sponge or cloth.
2. Rub lightly.
Inside and
Outside
BURNT-ON FOODS
OR GREASE
Chemical oven cleaner for
stainless steel.
Follow oven cleaner manufacturer’s
directions.
(Stainless Steel)
HARD WATER
SPOTS and SCALE
1. Swab or wipe with cloth.
2. Rinse and dry.
Vinegar
* Mild detergents include soaps and non-abrasive cleaners
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Ovens
FL-2270
Rev. 10 (4/08)
Page 7 of 13
5925 Heisley Road • Mentor, OH 44060-1833
MAINTENANCE INSTRUCTIONS:
TROUBLE-SHOOTING GUIDE
WARNING
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
POSSIBLE CAUSE
1. Water in pan may be low
2. Thermostat set too low
SOLUTION
1. Add water
2. Turn up thermostat
Humidity is low
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
Cabinet does not heat,
or doesn’t heat properly
1. On/Off Switch
2. Fuse
3. Blower
1. Replace
2. Replace
3. Replace
4. Replace
Blowers do not operate
4. Control
1. Thermostat
2. Contactor
1. Replace
2. Replace
Heaters will not shut off
Vent fan does not shut off
1. Replace
2. Wait until it cools. Check
“Heaters will not shut off.”
1. Vent fan switch defective
2. Control compartment is still hot.
1. Fuse
2. Vent fan switch defective
3. Vent fan defective
1. Replace
2. Replace
3. Replace
Vent fan does not operate
(See Note)
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
FL-2270
Rev. 10 (4/08)
Page 8 of 13
5925 Heisley Road • Mentor, OH 44060-1833
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 PREFIX CO-151, RO-151
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) -FWUA (12), (18)
-FW1332
HU675029
HU675031
HU675030
HU675032
-HWUA6
HU675037
HU675039
HU675038
HU675040
-XWUA5
HU675037
HU675039
HU675038
HU675040
HU675013
HU675015
HU675025
HU675027
HU675014
HU675026
HU675016
HU675028
1006-120-01-K
1006-120-02-K
0519-074-K
1221-525-K
0861-185-K
0621-281-SS-K
1006-120-01-K
1006-120-02-K
0519-074-K
1221-525-K
0861-185-K
0621-281-SS-K
1006-120-01-K 1006-120-01-K 1006-120-01-K
1006-120-02-K 1006-120-02-K 1006-120-02-K
Door Strike
Door Hinge
0519-074-K
1221-543-K
0861-184
0519-074-K
1221-525-K
0861-185-K
0519-074-K
1221-545-K
0861-250-K
Door Assembly
Door Gasket
Angles or Racks
Side Handles (2),
Black Recessed
1104-108
0621-281-SS-K 0621-281-SS-K
0911-102
0911-102
0911-102
0911-102 0911-102
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Ovens
FL-2270
Rev. 10 (4/08)
Page 9 of 13
5925 Heisley Road • Mentor, OH 44060-1833
REPLACEMENT PARTS
Include all information on nameplate when ordering parts
1
5
7
2
4
3
6
TM
5
Roast-N-Hold +
( I )
160
250
230
270
6
4
190
130
210
MEDIUM
7
290
310
330
350 F
FLASHING TIMIMG
-
ON
190
3
220
100
160
LOW
8
180
PROOF
140
170
150
R
190
200
120
100
HIGH
9
2
LOW
WATER
HOURS
MINUTES
70
250 F
210
80
60
220
20
DRY
MOIST
F
1
10
C
START
STOP
( 0 )
OFF
TIME SELECT
POWER
HOLD
COOK / RETHERM
HUMIDITY
TIMER
9
8
FIGURE 3: Control Panel
Hot Unit Replacement Parts
ITEM DESCRIPTION
1. Switch (On/Off)
2. Timer, Digital
Part No.
0808-113-01-K
0849-088-K
ITEM DESCRIPTION
Part No.
PARTS for 8200W, 1-PH UNITS
27. Power Cord
0810-124
28. Heater Kit, 208 V
Heater Kit, 240 V
29. Strain Relief
0811-261
0811-262
0818-061
Timer, Digital with
0849-088-K2
Transformer
3. Light, Low Water
0766-095
5238-031
0595-061
0848-069
0848-008-ACK
0766-095
0766-097
0769-174
0769-167
0807-058
0807-048
0769-182-01-SSK
0852-096
0852-093
0848-079
0848-034
0857-026
0769-159
0857-102
0857-129
0857-125-K
0848-058-K1
0818-006
0857-122
0756-030-K
0811-278
4. Thermometer and Sensor
5,6,7. Knob, Thermostat
5,6. Control Board
7. Thermostat
PARTS for 8200W, 3-PH UNITS
27. Power Cord
0810-132
28. Heater Kit, 208 V
Heater Kit, 240 V
29. Strain Relief
0811-261
0811-262
0818-050
8. Light, Yellow
9. Light, Green
12. Vent Fan
13. Fan Guard
PARTS for 4950W, 1-PH UNITS
14. Fuse (3 A.)
27. Power Cord
0810-163
0811-020-K
0811-020-01-K
0818-050
Fuse holder
15. Blower Kit
16. Terminal Block
17. Terminal Block
18. Hi-Limit (Switch)
19. Fan Switch
20. Contactor
21. Transformer
22. Relay, Cook and Hold
23. Resistor
25. Relay (3PDT), Water
26. Sensor – Thermostat
Sensor Bushing
28. Heater Kit, 208 V
Heater Kit, 240 V
29. Strain Relief
PARTS for 4950W, 3-PH UNITS
27. Power Cord
0810-164
28. Heater Kit, 208 V
Heater Kit, 240 V
29. Strain Relief
0811-020-K
0811-020-01-K
0818-050
• Float Switch
• Water Pan Kit, 208V
• Heater, 208V
• Water Pan Kit, 240V
• Heater, 240V
0756-031-K
0811-271
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Ovens
FL-2270
Rev. 10 (4/08)
Page 10 of 13
5925 Heisley Road • Mentor, OH 44060-1833
REPLACEMENT PARTS
for OVENS CO or RO 151FW SERIES:
Include all information on nameplate when ordering parts
16 15
17
19
18
14
13
29
21
27
20
12
22
25
FIGURE 4; Hot Unit w/o Top cover
(For parts description, refer to page 9.)
26
26
28
FIGURE 5;
Bottom of Hot Unit, Cover Removed
(For parts description, refer to page 9.)
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Ovens
FL-2270
Rev. 10 (4/08)
Page 11 of 13
5925 Heisley Road • Mentor, OH 44060-1833
REPLACEMENT PARTS
for “PASS-THRU” OVENS CO or RO 151FW SERIES:
Include all information on nameplate when ordering parts
16
22
29 27
13
21
12
20
14
15
18
22
17
19
FIGURE 4;
Hot Unit w/o Top cover
(For parts description, refer to page 9.)
28
26
26
FIGURE 5;
Bottom of Hot Unit, Cover Removed
(For parts description, refer to page 9.)
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Ovens
FL-2270
Rev. 10 (4/08)
Page 12 of 13
5925 Heisley Road • Mentor, OH 44060-1833
WIRING DIAGRAM SINGLE PHASE
42
V
41
1 PHASE
V
HIGH TEMP
20
24
22
G
L2
L1
FUSE
1
3
FUSE
2
4
14
HEATER
CONTACTOR
27
26
18
POWER
SWITCH
H1
H2
H3
HIGH LIMIT
1
2
7
6
7
9
8
12
10
A
29
28
13
HIGH LIMIT
11
17
TRANSFORMER
6
1
2
5
41
31
41
44
43
45
33
14
7
8
28
BM
L
BM
R
BM
C
3
4
34;42
46
5
42
30
TIMER
COM
N.O.
46
48
SENSOR
t o
OVEN
RELAY
17
1
53 47 54
30
RELAY
7
8
9
9
1
2
3
4
5
1
52
4
2
13
7
8
5
7
9
Temp
Control
(120V)
10
11
12
R=47K
4
3
31
51
34
53
(208V)
(240V)
35
5
3
15
16
39
6
47
WHITE
6
49
49
ORANGE
6
ROAST
POTENTIOMETER
(SOLID COLOR LEADS)
BLACK
37
10
36
8
21
6
19
7
A
B
51
9
4
5
HOLD
POTENTIOMETER
(STRIPED COLOR LEADS)
A
B
50
HOLD
LIGHT
18
48
A
R
Water Thermostat
19
ROAST
LIGHT
A
FLOAT SWITCH
BLUE
WHITE
BLACK
ORANGE
RED
HEATER WATER
208V
GREEN
SENSOR WATER
t°
FLOAT SWITCH
BLUE
WHITE
BLACK
ORANGE
RED
HEATER WATER
240V
GREEN
SENSOR WATER
t°
SINGLE PHASE
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Ovens
FL-2270
Rev. 10 (4/08)
Page 13 of 13
5925 Heisley Road • Mentor, OH 44060-1833
WIRING DIAGRAM THREE PHASE
42
41
3 PHASE
V
HIGH TEMP
V
20
24
22
G
L3
L2
L1
FUSE
1
3
FUSE
2
4
14
HEATER
CONTACTOR
27
26
10
18
POWER
SWITCH
H1
HIGH LIMIT
7
8
6
7
9
8
12
2
1
H2
H3
A
29
28
13
HIGH LIMIT
11
17
TRANSFORMER
1
2
5
7
41
31
41
44
43
45
33
14
28
BM
R
BM
C
3
4
BM
L
34;42
46
5
42
8
30
TIMER
COM
N.O.
46
48
SENSOR
t o
OVEN
RELAY
17
1
53 47 54
30
RELAY
7
8
9
9
1
2
3
4
5
1
4
52
13
7
8
5
7
9
Temp
Control
(120V)
10
11
12
R=47K
2
4
3
31
51
34
53
(208V)
(240V)
35
5
15
16
39
6
47
WHITE
3
6
6
49
49
ORANGE
ROAST
POTENTIOMETER
(SOLID COLOR LEADS)
BLACK
37
10
36
8
21
6
19
7
A
B
51
9
4
5
HOLD
POTENTIOMETER
(STRIPED COLOR LEADS)
A
B
50
HOLD
LIGHT
18
48
A
R
Water Thermostat
19
ROAST
LIGHT
A
FLOAT SWITCH
BLUE
WHITE
BLACK
ORANGE
RED
HEATER WATER
208V
GREEN
SENSOR WATER
t°
THREE PHASE
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