5925 Heisley Road • Mentor, OH 44060-1833
INSTALLATION, OPERATION and MAINTENANCE
MANUAL for Cres Cor
CONVECTION and RETHERM OVENS
Ovens
Rev. 9 (9/08) Page 1 of 12
FL-2271
CO151FUA12B
CO151F1818B
CO151FPUA12B
CO151FUA12B
RO151F1332B
RO151FUA18B
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
CO151HUA6B
CO151H189B
CO151XUA5B
CO151X185B
CO151HUA6B
Ovens
Rev. 9 (9/08) Page 2 of 12
FL-2271
5925 Heisley Road • Mentor, OH 44060-1833
TABLE OF CONTENTS
SUBJECT PAGE
INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3, 4
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4, 5, 6
Illustration, Figure 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
MAINTENANCE INSTRUCTIONS
How to Clean the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Trouble Shooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7, 8
Illustrations; Hot Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9, 10
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11, 12
STACKING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FL-2211
TIMER PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FL-2222
SERVICE POLICY and AGENCY LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FL-1400
WARNING
RISK OF FIRE OR ELECTRIC SHOCK
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK)
DO NOT OPEN
NO USER-SERVICEABLE PARTS INSIDE
REPAIR SHOULD BE DONE BY AUTHORIZED SERVICE
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
PERSONNEL ONLY
Ovens
Rev. 9 (9/08) Page 3 of 12
5925 Heisley Road • Mentor, OH 44060-1833
INSTALLATION INSTRUCTIONS
VENTING YOUR OVEN:
The purpose of ventilating hoods is to direct and 1.
capture smoke, grease-laden vapors, heat, odors, or
fumes.
Low temperature equipment (maximum temperature 2.
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 use three (3) elements (2670 watts each). All units are rated 8200 watts.
MODEL NOS.
CONVECTION OVENS Volts Ph Hz. Amps Volts Amps Ph Volts NEMA
CO151FUA12B2081
CO151FUA12B2401
CO151FUA12B2083
CO151FUA12B2403
CO151F1818B2081
CO151F1818B2401
CO151F1818B2083
CO151F1818B2403
RETHERM OVENS
RO151FUA18B2081
RO151FUA18B2401
RO151FUA18B2083
RO151FUA18B2403
RO151F1332B2081
RO151F1332B2401
RO151F1332B2083
RO151F1332B2403
HALF-SIZE OVENS Are rated at 4700 watts (Three [3] heaters at 1470 watts each)
CO151HUA6B2081
CO151HUA6B2401
CO151HUA6B2083
CO151HUA6B2403
CO151H189B2081
CO151H189B2401
CO151H189B2083
CO151H189B2403
CO151XUA5B2081
CO151XUA5B2401
CO151XUA5B2083
CO151XUA5B2403
CO151X185B2081
CO151X185B2401
CO151X185B2083
CO151X185B2403
ELECTRICAL SPECS
(AC SERVICE)
208
240
208
240
208
240
208
240
208
240
208
240
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
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
60
60
60
60
60
60
60
60
60
60
60
60
ELEC. LOAD
39
34
23
20
39
34
23
20
39
34
23
20
39
34
23
20
23
20
13
12
23
20
13
12
23
20
13
12
23
20
13
12
All models are designed for AC Service. Model numbers may have the letters: P, L, M, Z, T or S.
Most jurisdictions consider our low-temperature ovens 3.
(maximum temperature is 350°F/177°C) as low-heat
appliances not requiring vent hoods.
Installation must conform with local codes. The 4.
authority having jurisdiction of enforcement of
the codes will have the responsibility for making
interpretations of the rules.
POWER SUPPLY REQUIREMENT
ALL 3 PHASE IS 3 WIRE + GROUND
208
240
208
240
208
240
208
240
208
240
208
240
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
50
50
30
30
30
30
20
20
30
30
20
20
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
1
1
3
3
1
1
3
3
1
1
3
3
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
208
240
6-50P
6-50P
L15-30P
L15-30P
6-50P
6-50P
L15-30P
L15-30P
6-50P
6-50P
L15-30P
L15-30P
6-50P
6-50P
L15-30P
L15-30P
6-30P
6-30P
L15-20P
L15-20P
6-30P
6-30P
L15-20P
L15-20P
6-30P
6-30P
L15-20P
L15-20P
6-30P
6-30P
L15-20P
L15-20P
FL-2271
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
Ovens
FL-2271
Rev. 9 (9/08) Page 4 of 12
INSTALLATION INSTRUCTIONS (continued)
HOW TO INSTALL CABINETS:
Remove all packing material from inside and outside of 1.
cabinet.
Position cabinet on level fl oor; install the cabinet 2.
interior (pan slides) if not already installed.
Plug power cord into proper wall receptacle. 3.
To install stacking units, refer
CAUTION
to instruction sheet FL-2211,
Stacking Installation.
OPERATING INSTRUCTIONS
5925 Heisley Road • Mentor, OH 44060-1833
NOTE: Cold food is NOT to be added when unit is
operating on HOLD mode.
For HOLD mode, preheat unit to 180°F/82°C for
60 minutes.
POWER SWITCH
TIMER
THERMOMETER
TM
Roast-N-Hold
( I )
ON
( 0 )
OFF
POWER
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 arrowbutton (using the same method) will cause the time to
decrease.
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
fl ash.
C. Cooking time can be changed while oven is in any
mode.
(1) Press START/STOP button.
(2) Adjust time by using UP and DOWN arrow-
buttons.
(3) Press START/STOP button to restart oven.
FLASHING - TIMIMG
TIME SELECT
TIMER
MINUTESHOURS
START
STOP
CABINET
70
60
160
140
120
40
100
80
20
60
20
0
HOLD
THERMOSTAT
200
190
180
170
80
160
180
90
R
190
150
95
200
210
140
100
220
F
105
C
210
HOLD COOK / RETHERM
220
230
240
250 F
COOK/RETHERM
THERMOSTAT
250
230
210
190
170
150
270
290
310
330
350 F
YELLOW GREEN COOK/
HOLD LIGHT
RETHERM LIGHT
HOW TO START UNIT
(for fi rst-time operation only)
A new oven needs to “burn off” factory oils and glue before
it’s fi rst use. Do NOT load food into oven until this has
been done!
Push switch to “ON”.1.
Set the 2. Cook/Retherm thermostats to 350°F/177°C.
Set the 3. Hold thermostat to 150°F/66°C.
Set the timer to one (1) hour.4.
Allow oven to run automatically for one (1) hour of 5.
Cook/Retherm cycle and 30 minutes of Hold cycle.
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
5925 Heisley Road • Mentor, OH 44060-1833
Ovens
Rev. 9 (9/08) Page 5 of 12
FL-2271
HOW TO START UNIT
(After fi rst-time operation):
Push POWER switch “ON”.
For Automatic Operation:
Set 1. Cook/Retherm thermostat to the cooking
temperature you need.
Set 2. Hold thermostat to the warming temperature you
need. Proper food holding temperature is 140°F/60°C
or higher.
Set 3. Timer for the roasting time. The unit will
automatically switch to the pre-set “hold” temperature
after roasting time has expired.
HOW TO CLEAN THE UNIT:
WARNING
BEFORE cleaning the cabinet:
Unplug cord from wall. Allow cabinet to 1.
cool.
Do NOT hose cabinet with water.2.
Do NOT get water on controls.3.
Do NOT use abrasives or harsh chemicals.4.
Wipe up spills as soon as possible.
For Holding Operation ONLY:
NOTES: For HOLD mode, preheat unit to 180°F/82°C for
60 minutes.
Cold food is NOT to be added when unit is operat-
ing in HOLD mode.
Set 1. HOLD thermostat to the temperature you need.
Set Timer at zero.2.
TO SHUT DOWN UNIT:
Push SWITCH to “OFF”.
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.
Cleaning Hints:
Use the mildest cleaning procedure that will do the job. 1.
Always rub in the direction of polish lines to avoid 2.
scratching the surface.
Use only a soft cloth, sponge, fi brous brushes, plastic 3.
or stainless steel pads for cleaning and scouring.
Rinse thoroughly with fresh water after every cleaning 4.
operation.
Always wipe dry to avoid water marks. 5.
Clean regularly to avoid heavy dirt build-up.
SOIL CLEANER METHOD
Routine Cleaning
CABINET
Inside and
Outside
(Stainless
Steel)
Stubborn Spots, Stains
Burnt on Foods or Grease
Hard Water Spots & Scale Vinegar
*MILD DETERGENTS INCLUDE SOAPS AND NON-ABRASIVE CLEANERS.
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
Soap, ammonia or mild
detergent* and water.
Mild abrasive made for
Stainless Steel.
Chemical oven cleaner
made for Stainless
Steel.
1. Sponge on with cloth
2. Rinse
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.
Ovens
Rev. 9 (9/08) Page 6 of 12
FL-2271
MAINTENANCE INSTRUCTIONS
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, fi rst check the following causes:
1. Cord is unplugged from wall outlet.
5925 Heisley Road • Mentor, OH 44060-1833
TROUBLE-SHOOTING GUIDE
3. Switch is turned off.
2. Circuit breaker/fuse to wall outlet is blown.
PROBLEM POSSIBLE CAUSE SOLUTION
1. Fuse
2. Control
Cabinet does not heat, or doesn’t heat
properly
Blowers do not operate
Heaters will not shut off
Vent fans do not shut off
Vent fans do not operate
(See Note)
3. Sensor
4. Heater contactor
5. Loose wiring at heater contactor
6. On/Off Switch
1. On/Off Switch
2. Fuse
3. Blower
1. Thermostat defective
2. Contactor defective
1. Vent fan switch defective
2. Control compartment is still hot.
1. Fuse
2. Vent fan switch defective
3. Vent fan defective
4. Thermostat is turned off, or is set too low.
1. Replace
2. Replace
3. Replace
4. Replace
5. Replace
6. Replace
1. Replace
2. Replace
3. Replace
1. Replace
2. Replace
1. Replace
2. Wait until it cools
Check “Heaters will not shut off”
1. Replace
2. Replace
3. 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 qualifi ed 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.
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
5925 Heisley Road • Mentor, OH 44060-1833
REPLACEMENT PARTS
Include all information on nameplate when ordering parts
1
2
Ovens
FL-2271
Rev. 9 (9/08) Page 7 of 12
6
3
3
TIME SELECT
TM
FLASHING - TIMIMG
TIMER
250
230
200
190
210
180
70
60
160
140
MINUTESHOURS
START
STOP
120
40
100
80
20
60
20
0
F
C
170
80
160
180
90
R
190
150
95
200
210
140
100
220
105
220
190
230
170
240
150
250 F
HOLD COOK / RETHERM
4
270
210
290
310
330
350 F
5
Roast-N-Hold
( I )
ON
( 0 )
OFF
POWER
Hot Unit Replacement Parts
ITEM DESCRIPTION Part No. ITEM DESCRIPTION Part No.
1. Switch (On/Off) 0808-113-01-K
2. Timer, Digital 0849-088-K 19. Power Cord 0810-124
Timer, Digital with Transformer 0849-088-K2 Power Cord (Pass-thru) 0810-161
3. Knob, Thermostat 0595-061 20. Heater Kit, 208V 0811-261
3. Control Board Kit 0848-057-K3 Heater Kit, 240V 0811-262
Potentiometer Only 0848-057-04 21. Strain Relief 0818-061
4. Pilot Light, Yellow 0766-095
5. Pilot Light, Green 0766-097 19. Power Cord 0810-132
6. Thermometer 5238-031 Power Cord (Pass-thru) 0810-162
7. Vent Fan 0769-174 20. Heater Kit, 208V 0811-261
8. Fan Guard 0769-167 Heater Kit, 240V 0811-262
9. Fuse (Before 7/08) 0807-058 21. Strain Relief 0818-050
Fuse Holder (Before 7/08) 0807-048
Fuse 0807-151 19. Power Cord 0810-163
Fuse Holder 0807-150 20. Heater Kit, 240V 0811-020-K
10. Blower Kit 0769-182-K Heater Kit, 208V 0811-020-01-K
11. Contactor 0857-026 21. Strain Relief 0818-050
12. Terminal Block, Front 0852-096
13. Terminal Block 0852-093 19. Power Cord 0810-164
14. Switch, Fan 0848-034 20. Heater Kit, 240V 0811-020-K
15. Relay, Timer 0857-102 Heater Kit, 208V 0811-020-01-K
16. Hi-Limit (Switch) 0848-079 21. Strain Relief 0818-050
17. Sensor Only 0848-058-K1
Sensor Bushing 0818-014
18. Transformer 0769-159
PARTS for 8200W, 1-PH UNITS
PARTS for 8200W, 3-PH UNITS
PARTS for 4700W, 1-PH UNITS
PARTS for 4700W, 3-PH UNITS
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
Ovens
Rev. 9 (9/08) Page 8 of 12
FL-2271
Include all information on nameplate when ordering parts
5925 Heisley Road • Mentor, OH 44060-1833
REPLACEMENT PARTS
FULL-SIZE CABINET REPLACEMENT PARTS
DESCRIPTION
Hot Unit, 208V, 1 Ph HU675017 HU675062 HU675021 HU675058
Hot Unit, 240V, 1 Ph HU675018 HU675063 HU675022 HU675059
Hot Unit, 208V, 3 Ph HU675019 HU675064 HU675023 HU675060
Hot Unit, 240V, 3 Ph HU675020 HU675065 HU675024 HU675061
Door Latch Kit 1006-120-01-K 1006-120-01-K 1006-120-01-K 1006-120-01-K
Latch Strike 1006-120-02-K 1006-120-02-K 1006-120-02-K 1006-120-02-K
Door Hinge 0519-074-K 0519-074-K 0519-074-K 0519-074-K
Door Assembly 1221-525-K 1221-525-K 1221-541-K 1221-543-K
Door Gasket 0861-185-K 0861-185-K 0861-197-K 0861-184
Interior 0621-281-K 0621-281-K 1104-106 1104-108
Side Handles (2),
Black Recessed
DESCRIPTION
-FUA (12, 18B) -FPUA -F18 (18B) -F1332
0911-102 0911-102 0911-102 0911-102
HALF-SIZE CABINET REPLACEMENT PARTS
-HUA, (6B) -H18 (9B) -X185B -XUA5B
MODEL PREFIX CO-151 or RO-151
MODEL PREFIX CO-151 or RO-151
Hot Unit, 208V, 1 Ph HU675033 HU675041 HU675041 HU675033
Hot Unit, 240V, 1 Ph HU675034 HU675042 HU675042 HU675034
Hot Unit, 208V, 3 Ph HU675035 HU675043 HU675043 HU675035
Hot Unit, 240V, 3 Ph HU675036 HU675044 HU675044 HU675036
Door Latch Kit 1006-120-01-K 1006-120-01-K 1006-120-01-K 1006-120-01-K
Latch Strike 1006-120-02-K 1006-120-02-K 1006-120-02-K 1006-120-02-K
Door Hinge 0519-074-K 0519-074-K 0519-074-K 0519-074-K
Door Assembly 1221-525-K 1221-541-K 1221-546-K 1221-545-K
Door Gasket 0861-185-K 0861-197-K 0861-251 0861-250-K
Interior 0621-281-K 1104-106 1104-107 0621-281-K
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
5925 Heisley Road • Mentor, OH 44060-1833
REPLACEMENT PARTS
for OVENS CO or RO151F SERIES
Include all information on nameplate when ordering parts
12
10
16
13
14
Ovens
Rev. 9 (9/08) Page 9 of 12
9
FL-2271
18
15
8
11
7
FIGURE 3; Hot Unit w/o Top cover
(For parts description, refer to page 7.)
17
17
20
21
19
FIGURE 4; Bottom of Hot Unit, Cover Removed
(For parts description, refer to page 7.)
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
Ovens
Rev. 9 (9/08) Page 10 of 12
FL-2271
for “PASS-THRU” OVENS CO or RO151FPUA SERIES
Include all information on nameplate when ordering parts
5925 Heisley Road • Mentor, OH 44060-1833
REPLACEMENT PARTS
18
16
12
19
FIGURE 3; Hot Unit w/o Top cover
(For parts description, refer to page 7.)
17
15
13
17 20
10
11
21
19
8
7
9
FIGURE 4; Bottom of Hot Unit, Cover Removed
(For parts description, refer to page 7.)
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
5925 Heisley Road • Mentor, OH 44060-1833
WIRING DIAGRAM SINGLE PHASE
43
5
4542
8
7
TIMER
Ovens
FL-2271
Rev. 9 (9/08) Page 11 of 12
N.O.
COM
48
46
47
7
9
B
48
50
V
30 29
HIGH TEMP
26 28
V
3
FUSE
1
4
FUSE
2
RELAY
4
1
52
24
TRANSFORMER
41
4
312
44
20
POWER
SWITCH
A
17 16
10
8
H3
11
HIGH LIMIT
19
20
46
24;42
21
19
41
22
53 5447 22
o
15
18
t
13
C
BM
27
R
BM
6
BM
L
SENSOR
OVEN
18
H2
H1
12
14
9
HIGH LIMIT
9
3 4 5
1 2
21
10
(120V)
Temp
7
5
6
3
535149
51
11
(240V)
(208V)
6 12
49
Control
8
15
A
(SOLID COLOR LEADS)
POTENTIOMETER
ROAST
POTENTIOMETER
HOLD
(STRIPED COLOR LEADS)
HOLD
LIGHT
R
A
ROAST
LIGHT
SINGLE PHASE
L2 L1L1
1 PHASE
G
14
5
HEATER
8
7
6
52
CONTACTOR
1
2
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
Ovens
FL-2271
Rev. 9 (9/08) Page 12 of 12
WIRING DIAGRAM THREE PHASE
5925 Heisley Road • Mentor, OH 44060-1833
N.O.
COM
TIMER
48
46
43
5
4542
8
7
7
47
9
B
48
50
V
30 29
28
HIGH TEMP
26
V
3
FUSE
1
42
FUSE
RELAY
4
1
2
TRANSFORMER
41
4
3
44
1
24
52
20
POWER
SWITCH
1617
A
22
10
8
H3
11
HIGH LIMIT
19
20
46
24;42
21
41
19
22
53 47 54
o
15
18
t
13
C
BM
27
BMBM
L R
SENSOR
OVEN
18
H2
H1
10
14
12
9
HIGH LIMIT
9
1 2 3 4 5
21
10
(120V)
Temp
7
5
6
3
53
49
51
12
11
(240V)
(208V)
6
49
Control
8
15
A
51
POTENTIOMETER
(SOLID COLOR LEADS)
ROAST
POTENTIOMETER
HOLD
(STRIPED COLOR LEADS)
HOLD
A
LIGHT
ROAST
R
LIGHT
THREE PHASE
L2G L3 L1L1
3 PHASE
14
6
52
8
7
CONTACTOR
HEATER
2
1
5
Call Toll-free: 877-CRES COR (273-7267) • Fax: 800-822-0393 • www.crescor.com
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