21cet8 parts cover• 115 vac is sent from the secondary of the main transformer to the on/off...
TRANSCRIPT
Parts Manual
Counter Type Electric Convection Steamer
Series: SteamCraft Models 21CET8
1333 East 179th Street Cleveland, Ohio 44110
Phone: (216) 481-4900
1-800-338-2204 Fax: (216) 481-3782
www.clevelandrange.com
CLEVELAND RANGE 21CET8 SEQUENCE OF OPERATIONS
Mechanical Timer
1. Supply power is sent to the primary of the main transformer.
• 115 VAC is sent from the secondary of the main transformer to the on/off rocker, 2. To turn the unit on, depress the red on/off rocker switch.
• 115 VAC is sent to the red power light. • 115 VAC is sent to normally open drain valve closing it. • 115 VAC is sent to H and N on the water level board
3. With the water level board energized and no water in the generator
• 5 seconds later 115 VAC is sent from the FILL terminal to the fill solenoid. • The fill solenoid opens and the generator fills through the drain valve. • The water fills to the low probe shorting it to ground • 115 VAC is sent to the heat standby timer which will energize 3 seconds every 4
minutes to maintain heat while unit is idle • 115 VAC is sent from the HEAT terminal to the timed manual switch.
4. When the timed/manual switch is in the timed position and time is on the timer
• 115 VAC is sent from the timer to the R2 relay coil • R2 relay energizes closing the R2A and R2B contacts • 115VAC is sent through the now closed R2B contacts to the timer motor • 115 VAC is sent through the now closed R2A contacts through the door switch to the
normally closed contacts of the high limit switch. • 115 VAC is then sent through the high limit to the coil of condensate solenoid • The condensate solenoid opens spraying cold water down the compartment drain.
• 115 VAC is also sent through the high limit to the coil of the contactor. • 115 VAC is sent to the clean light timer. • When the clean light timer times down 115 VAC is sent to the clean light switch. • When the clean light switch is depressed the clean light timer is reset.
5. When the contactor coil is energized supply voltage is sent to both of the elements.
• The elements are energized and the water is heated to steam. • Steam is directed to the cooking compartment.
6. When the timer times out
• 115 VAC is sent to the 3 second timer and then to the buzzer for 3 seconds. • 115 VAC is removed from the R2 relay.
• R2A contacts open de energizing the heat circuit • R22B relay contacts open removing the 115 VAC from the timer motor
7. When the water level reaches the high probe then 115 VAC is removed from the FILL
terminal and the fill solenoid is turned off. 8. After the water level drops below the high probe for 5 seconds 115 VAC is sent to the FILL
terminal again. 9. The red on/off switch is depressed and the unit is turned off.
• 115 VAC is removed from the heat and timer circuit. • 115 VAC is removed from the normally open drain valve allowing the steamer to drain. • 115 VAC is sent to the 3-minute timer and the fill solenoid is energized for 3 minutes
flushing the drain.
STEAMCRAFT 3.1 MECHANICAL TIMER (PROBE)
FIELD CONVERSION FROM 3Ø
TO 1Ø IS NOT PERMITTED
DRYING ELEMENT
HEATING ELEMENTS
DRYING ELEMENT
CONTACTOR
CUSTOMERCONNECTION
1Ø
L1
L2
TB
1Ø
CUSTOMERCONNECTION
3Ø L3
TB
L1
L2
3Ø
HEATING ELEMENTS
CONTACTOR
TIMER DESCALE
BLK
23
87
4
56
1& RESET SWITCH
DESCALE INDICATOR
L
NONO
L A
WHT
32
3 MIN TIMERSWITCH
1
WATERBOARD
HIN
3 SEC TIMER
1
2
3BUZZER
XL
POWER ON
R
HEATFILLH
FILL VALVE
C
HEAT STANDBYTIMER
3
2
1
( STACKED UNITS OPTION )
CONTACTOR
CONDENSER
R1
NO C
SWITCH HI LIMIT VALVE
( OPT )
BLOWDOWN OPTION
1
3
2
R1
C NCINTERMITTENT
TIMERBLOWDOWN
DRAIN VALVE
COOLING FAN
L106347 M
R1
PROBESTO
POWER
TB
W/ NEUTRAL3Ø L2
L3
N
CUSTOMERCONNECTION
380/415V L1
FU FU
FU
FU
H4
X1
H1 PRIMARY
X2 SECONDARY
120V
RESET CIRCUITBREAKER
FU FU
(SCS OPT)
DOOR
MANUAL
ELECTRO-MECHANICAL
MOTOR
NC
TIMER
NOC
SWITCH
TIMED TIMEDMANUAL
R2
R2ANO
C
R2B
C NO
P106347 M
19994 - DESCALE IND RESET SWITCH
PARTS LIST: INTERMITTENT BLOWDOWN OPTION
WHT
23
BLK
( TO HIGH LIMIT )
8
9
RED
BLK
6 109239 - HEAT STANDBY TIMER
108331 - RESET CIRCUIT BRKR300022 - CONTACTOR103731 - HI LIMIT SWITCH22218 - WATER SOLENOIDS107211 - COOLING FAN ( OPT )22221 - DRAIN VALVE44168 - TERMINAL BLOCK
( TO COND SOL )
REDG
RN
13121110987
106911 - DESCALE TIMER
20478 - 3 MIN TIMER104224 - TIMED / MANUAL SW19993 - POWER SWITCH
FILL
BRN
( THRU SCS )
2
45
3
1
BLK
COND
GRN
WH
T/BR
NB
RN
10
BLU
RE
D
BLK
WH
T/B
LU
11
BLK
BR
N
WHT
WHT
STEAMCRAFT 3.1 MECHANICAL TIMER (PROBE)
RE
D
YEL
WHT/BLK
BLU
TAN
HEAT FILL
15
GRNRED
BLK
BLK
BLK
X2X1
WH
T
TAN
RED
NH
HI
XL
C
WHT
L2
CUSTOMER CONNECTION
BRN
WHT/BRN
24
L1
25
L3
VOLT208/240
H3
WH
T/B
LU
H4 H2
WHTWHT
H1
WHT
WHT
BLK
14
101541 - TERM BLOCK SECTIONAL101540 - END SEGMENT
2524
108880 - DOOR SW ( MAGNETIC )
106541 - INTMT BLOWDOWN TIMER
DRYING ELEMENT
105966 - RELAY
104234 - CONTACTOR20477 - 3 SEC TIMER110198 - MOTORIZED TIMER41350 - BUZZER18
21
2322
2019
17
DRYING ELEMENT
ELEMENTHEATER
WHTREDWHTBLK
ELEMENTHEATER
REDBLK
12
13
BLK
BLK
BLK
SINGLE PHASE WIRING CONFIGURATION
L1 L2 L3
CONNECTION
TERMINAL BLOCKCUSTOMER
WHT/BLK
WHT/BRN
TOFUSE BLOCK
4
3
RED
21
WHT/REDWHT
TAN
TAN
21
3BLU
6
HEATERELEMENT
WHTRED
DRYING ELEMENT
HEATERELEMENT
WHT
BLK
REDBLK
BLK
DRYING ELEMENT
22
RED1 RED
RED
WHT
2
3
YEL
WHT
BLK1
2
3
RED
BRN
BRN
7
34
58
16
2
BLK
5
1
32
YEL
BLK
6
7
WHT
7
20535 - TRANSFORMER
107239 - PROBE107241 - WATER BOARD8
161514
DOOR SWITCH ( SCS )REMOVED W / OPT
WHT/GRA
1
19
GRA
2
BLK
WHTW
HT/
BLU 18
20321 BLK
BLK
RE
D
BLU
WHT
TANWHT/BLK
YELYEL
BLKBLK
16
17
N
N
26
26 20304 - GROUND LUG
27FU FU 28
BLKBLK
BLK
BLK
H2
JUMPER POSITIONFOR 480 V
OPERATION
H4 H3 H1
109374 - FUSE BLOCK109380- 3.5 AMP, 600V FUSE
2827
TIMED/MANUAL SWITCH
LT BLU
NOC
PNK
NC
WHT/BLK
TIMED/MANUAL SWITCH
23
ORNLT BLU
ORN/BLKWH
T/BL
K
LT B
LU
R2
STEAMCRAFT 3.1 ELECTRONIC TIMER (PROBE)
1•
CONNECTIONCUSTOMER
3•
L2
L3
L1
L2
L23Ø
W/ NEUTRAL
CONNECTIONCUSTOMER L1
N
L3
CONNECTION380/415V
CUSTOMER
L1
TB
TB
CONTACTOR
HEATING ELEMENTS
DRYING ELEMENT
FIELD CONVERSION FROM 3•
TO 1• IS NOT PERMITTED
CONTACTOR
TB
DRYING ELEMENT
HEATING ELEMENTS
DESCALE INDICATOR4NO6
1NO & RESET SWITCH
2
BREAKERRESET CIRCUIT
TIMER DESCALE
BLK
3
120V
H4
X1
LA
L
X2 SECONDARY
H1 PRIMARY
WHT
8
COMPARTMENT THERMAL SWITCH
POWER SWITCH
7
TIMER
( OPT )
FILL VALVE
POWER ON
TRANSFORMER24 VAC
ELECTRONIC
2
3 MIN TIMER
1
3
5
R
N HIXL C
HEAT
FILL
H
BOARDWATER
L106346 M
1
CDRAIN VALVE
BLOWDOWN
2
NC
TIMER
MAGNETIC
BLOWDOWN OPTION
( SCS OPT )
R1
HEAT STANDBYTIMER
MANUAL
TIMED
COOLING FAN
( STACKED UNITS OPTION )
SWITCH HI LIMIT
CNO
INTERMITTENT
2
3
1
DOOR
R1
CONDENSERVALVE
CONTACTOR
3
COIL R1FU
SWITCH
PROBESTO
FU
FU
FUFUFU FU
Steamer won'tsteam
Is the red lighton? Is there supply
voltage to theprimary of thetransformer?
No
Is there 115 VAC atthe secondary ofthe transformer?
Yes
No
No Replace thetransformer.
Supply power tothe steamer.
Replace the on/offrocker switch
Yes
Is there waterin the sight
glass?
Yes
SeeSTEAMER
WON'T FILLNo
Is there 120 VACbetween terminals Hand N on the water
board?
Yes
Replace the wiresto the water
board.No
Is there 120 VACbetween terminalsN and Heat on the
water board?
Yes
Is there 115 VAC to the
common terminal ofthe timed/manual
switch?
Yes
With a jumper between XL andC on the water board, isthere 120 VAC between
N and Heat?
NoReplace thewater board No
Is there debris on
the Longprobe?
Replace the wirefrom the water
board to the longprobe.
No
Clean or replacethe probe assy.
Yes
Replace the wiresto the switch.No
Does the unit steam
in Manualmode?
Yes
Doessteamer steam with
door switchbypassed?
Replace thetimer.
Yes
No
Does thesteamer havethe optionaldoor switch?
Yes
Adjust or replacethe door switch.
Yes
Is there 115 VAC to the
high limit?No
No
Replace thewires to thehigh limit.
No
Is there 115VAC leaving
the high limit?
Yes
Replace thehigh limit.No
Is there 115VAC to the coil
of thecontactor?
Yes
Replace thewires to the
contactor coil.No
Is there anamp draw atthe element?
Replace theelement.
No
Wait longer for thesteam. Heat from theelement will heat the
water to steam.
Yes
PROBLEM:21CET8
21CET1621CEA10
Steamer won'tsteam.
Yes
Yes
Steamer wont fill.
Is there supplyvoltage to the
steamer?
Yes
Supply power tothe steamer.No
Is there waterto the
steamer?
Supply cold waterto the steamer.No
Yes
Is there 120 VACbetween the H and Non the water board?
Replace the on/offrocker switch.No
Yes
Is there 120 VAC
between Fill andN on the water
board?
Yes
Remove the wire from the HIterminal on the water
board. Is there 120 VACbetween Fill
and N?
No Replace the waterboardNo
Is there debris on theHI probe in theprobe assy?
Yes
Replace the wireto the Hi probe.
Clean the probesor replace theprobe assy.
No
Yes
Is there120 VAC acrossthe coil of the fill
solenoid?
Yes
Is water leaving
the fillsolenoid?
Replace wiring tothe fill solenoid.
No
Yes
Replace the fillsolenoid No
Is there 120 VAC across
the coil of thedrain valve?
Yes
Does the steamer have
the optionalintermittent
blowdown timer?
NoReplace wiring todrain valve. No
Isthere 120 VAC
between terminals2&3 on the timer?
Is waterdraining from
the generator?
Replace the drainvalve.
Yes
Yes
Replace theintermittent
blowdown timer.
Yes
Yes
Replace the wiringto the intermittentblowdown timer.
No
No
PROBLEM:21CET8
21CET1624CEA10
Steamer wontfill
If water is leavingthe fill solenoidand not draining
from the generatorwhere is it going?check for leaks..
PROBLEM:21CET8, 21CET16, 24CEA10
Electronic timer displays "PAUS" and won't count down
Timer displays "paus"and won't count down
Is steam heatingthe cooking
cabinet above 192degrees (the set
temp of thethermo-switch)?
Does the timercount down whenthe thermo-switch
is bypassed?
Yes
See Steamer
won't steamNo
Replace theelectronic timerNoReplace the
thermo-switch Yes
PROBLEM:21CET8, 21CET16, 24CEA10Steam leaks around the door.
Steam leaksaround the
door
Is COLD watersupplied to bothwater lines to the
steamer?
Supply coldwater(35-60 psi) to
the steamer.No
Is the door gasketphysicallydamaged?
Yes
Turn over thegasket orreplace it.
Yes
Is the door out ofalignment?No
Replace thedoor bearings
and pins.
Yes
Is the drainobstructed?No
Remove theobstruction
Yes
Is there 120 VACacross the coil ofthe condensate
solenoid?
No
Replace thewiring to thecondensate
solenoid.
No
Is the solenoidopening?
Yes
Replace thecondensate
solenoid.No
Replace thecondensate spray
nozzle
Yes
Steamer overfills(Water sprays into the
cooking cabinet)
Does the water level in thesight glass stop at theHI (short) probe on the
initial fill?
Start
Does water spray in thecabinet before the
water reaches the HI(short) probe?
There is an obstruction inthe plumbing to and fromthe sight glass. Remove
the debris (delimethoroughly).
Is there 120 VAC
across the coil of ;thefill solenoid when the
HI (short) probe issubmerged?
Remove the wire from the Fill
terminal on the waterboard. Is there 120 VAC
across the coil of the fill
solenoid?
No
Yes
No
Replace the threeminute timer.
Yes
With HI and Cterminals on the
water board jumped,Is there 120 VAC
between terminals Nand Fill?
No
Replace the waterlevel board. Yes
Is there debris onthe HI (short)
probe?
No
Clean or replacethe probeassembly.
Yes
Replace the wireto the probeassembly
No
Yes
Replace the fillsolenoid
No
Does the water rise in the
sight glass when steamis generated and 0 VAC
to the fill solenoid?
Yes
Replace the fillsolenoid
No
Doesthe rise in the water
level in the sight glassstop when the cooking
cabinet door isopened?
Yes
There is anobstruction in thegenerator causing
it to pressurize.Delime the steam
generatorthoroughly.
No
There is anobstruction in the
drain. Remove theobstruction.
Yes
PROBLEM:21CET8
21CET1624CEA10
Steamer overfills. (Water sprays into cooking
cabinet)
Steamer won'tstop steaming
PROBLEM:21CET8
21CET1624CEA10
Steamer won't stop steaming withdoor open
Is the timed/manual switchin the timed positionwith no time on the
timer?
Steamer will steamconstantly in the
manual position. Putthe timed/manualswitch in the timed
position with no time onthe timer.
No
Does the steamerhave the optional
door switch?
Yes
Adjust or replacethe door switch .
Yes
Does steamer continue to steam with
both wires removedfrom terminal 1 on the
heat standby timer?
No
Replace the heatstandby timer.
No
Is there 120 VAC to the
coil of thecontacter?
Yes
Replace the timer.
Yes
Is there an amp
draw at theelement?
No
Replace thecontactor
Yes
When supplyvoltage is removedfrom the element
steam is still madefor approximately10 seconds. This
is normal.
No
Problem:21CET8, 24CEA10
Steamer won't preheat
Steamerwon't
preheat
Is the timed/manual
switch in the timed postionwith time on it or in the
manual postion?
See Problem:steamer won't
steam.
Yes
This steamer isnot equiped with a
preheatthermostat. Thetimed manual
switch must be inmanual or timemust be on the
timer.
No
Problem:21CET16
Steamer won't preheat
Steamer won'tpreheat
Is the timed/manual
switch in the timed postionwith time on it or in the
manual postion?
See Problem:steamer won't
steam.
Yes
This steamer isnot equiped with a
preheatthermostat. Thetimed manual
switch must be inmanual or timemust be on the
timer.
NoDoes the steamer
have a preheatthermostat
No
Is there continuity on thenormally closedcontacts of the
preheat thermostat?
Yes
Yes
Replace the preheatthermostat
No
POWER SWITCH
DESCALE TIMER
CONNECTIONCUSTOMER
BLK
3Ø
( STACKED UNITS OPTION )
CUT-OFF
BLOWDOWNTIMER
INTERMITTENTNCC
3
2
1
BLOWDOWN OPTIONR2
DRAIN VALVE
COOLING FAN
LOW WATER
L300163 D
X2 SECONDARY
H1 PRIMARY
FILL VALVE
DESCALE INDICATOR& RESET SWITCH
HEATING ELEMENTS
NO NO6
R
POWER ON3 MIN TIMER
57 8
2
1
3
NO C
WATER LEVEL
R1
L
CONTACTOR
RESET CIRCUIT
143 2
BREAKER
L3
TB
L2
L1
3Ø
FU
FU
120V
A L
X1
H4
R1
WHT
380/415V
3ØW/ NEUTRAL
CONNECTIONCUSTOMER
CONNECTIONCUSTOMER
STEAMCRAFT 3.1 MECHANICAL TIMER ( FLOAT )
1ØDRYING ELEMENT
HEATING ELEMENTS
DRYING ELEMENT
TO 1Ø IS NOT PERMITTED
FIELD CONVERSION FROM 3�
CONTACTOR 1Ø
TB
L2
L1
FUFU
N
L1
L3
L2
TB
FUFU
TIMER HEAT STANDBY
3
1HI LIMIT SWITCH 2
CNOCONDENSER
VALVE
COIL R2( OPT )
R2
2
1
CONTACTOR
BUZZER
3 SEC TIMER
3R3
ELECTRO-MECHANICAL
R3A
TIMER
NC
MOTOR
C NO
NO SWITCH(SCS OPT)
CDOOR
MANUALTIMED
NOC
R3B
TIMED
26 20304 - GROUND LUGBLK1TERMINAL BLOCK
H3
208/240
CUSTOMER CONNECTION
11
19993 - POWER SWITCH104224 - TIMED / MANUAL SW
106911 - DESCALE TIMER
44168 - TERMINAL BLOCK109239 - HEAT STANDBY TIMER
19994 - DESCALE IND RESET SWITCH
STEAMCRAFT 3.1 MECHANICAL TIMER ( FLOAT )17
BLU
RE
D
BLKWHT
WHTBLK
WHT
WHT
14
BLK
X1
WHT/GRA33
WHT/GRA
WHT/BLK
REMOVED W / OPTDOOR SWITCH ( SCS )
BLK BLK
TAN
YELYEL
WHT
SINGLE PHASE WIRING CONFIGURATION
4
12
BLUBLU
WHTWHT/RED
TAN
TAN
RED
TOFUSE BLOCK
L2L1 L3
5BLK
1423
6587
2
BLK
YEL 6
3
1
BLK
BRN21BRN
6
WH
T
WH
T/G
RA
BLU
WH
T/BL
UB
LUB
LU
BR
NW
HT/
BRN
BLK
RE
D
BLK
RE
D
15
23
BLUWHT/GRA
7
BLU
NRED
WH
TB
LU
GRN RED
BLU
BLK
WH
T/BL
U
H2H4
VOLT
26
WHT/BLK
24
L2L1
WHT/BRN
BRN
INTERMITTENT BLOWDOWN OPTION
89
BLK
BRN
( TO HIGH LIMIT )WHT
YEL
3
2
N7
BLK
BLK
10
RINSE COND
BLK
BLKFILL
4
21
3
( THRU SCS )
65
78
20478 - 3 MIN TIMER
22221 - DRAIN VALVE
X2
BLK
BLKBLK
BR
N
BLK
H3
FOR 480 VOPERATION
JUMPER POSITION
H1
BLK
FU
WHTWHT
BLKBLK
WHT
2827FU
L3
25
H2H4
12
H1
HEATERELEMENT
HEATERELEMENT
DRYING ELEMENT
DRYING ELEMENT
110198 - MOTORIZED TIMER20477 - 3 SEC TIMER104234 - CONTACTOR
101540 - END SEGMENT
106541 - INTMT BLOWDOWN TIMER
108880 - DOOR SW ( MAGNETIC )
101541 - TERM BLOCK SECTIONAL
PARTS LIST:
REDBLK
BLKWHTREDWHT
21
1817
1920
2322
2425
41350 - BUZZER
105966 - RELAY
300022 - CONTACTOR
20535 - TRANSFORMER
107211 - COOLING FAN ( OPT )22218 - WATER SOLENOIDS103731 - HI LIMIT SWITCH
108331 - RESET CIRCUIT BRKR
CUSTOMER CONNECTION
WHT/BRN
WHT/BLK DRYING ELEMENT
ELEMENTHEATER
DRYING ELEMENT
ELEMENTHEATER
BLKREDWHT
REDBLK
WHT
22 WHT3WHT
RED
RED1
2
23
RED
RED
GR
N( TO COND SOL )
RED
9101112
8 151413
16103726 - FLOAT
109374 - FUSE BLOCK109380 - FUSE 3.5A 600V
P300163 D
2728
R1
R2
- -
SWITCHTO TIMED/MANUAL
20 23
1
18
BLK
BLK
1 2
GRA
BLK
WHT
WHT/BLK
NC
PNK
LT BLU
ORN19
NOC
WH
T/BL
K
23
WH
T/BL
U
LT BLU
LT B
LU
ORN/BLK
R3
Descaling Procedure-SteamCraft Ultra and Gemini Series
1. Turn the unit OFF and open thedoors:
This will drain and rinse the generator for about3 minutes.
2. Turn the unit power back On:The generator will begin to refill with water.
3. Select Timed with the Timed/Manualswitch:
DO NOT start the timer, since you do not wantto heat the water during descaling. Leave thedoors open.
4. Remove descaling port cap and addwith the specified amount ofDISSLOVE: (See chart above)
Do this while the unit is refilling. The generatorscan take-up to 8 minutes to refill.
5. After refill has stopped, add extra tapwater into the descaling port untilliquid is seen entering the cookingcabinet. Note: Ultra 10 gas will have liquidcoming out of the drain,
Adding extra water when descaling will raise thedescaling solution higher than the normal fill level,allowing the DISSOLVE to work on sensors andsurfaces above the water line
6. Let the descaler soak in generator forapproximately one hour:
7. After one hour, turn the unit powerOff: This will drain and rinse the generatorfor about 3 minutes.
8. After the 3-minute drain cyclecompletes, turn the unit back ON. Afterthe filling has stopped, add water untilliquid enters the cooking compartment (ordrain for the ultra 10 gas), and then turnthe unit OFF. This will drain and flush anyresidue from the water level controlassembly. Replace descaling cap.
9. After the 3 minute drain cyclecompletes, Turn the unit ON and setthe Timer for 20 minutes: Make sure theTime/Manual switch is in the timed settingand the doors are closed.
10. When the timer times out (after 20minutes) turn the power Off:This will drain and rinse the generator forabout 3 minutes.
This ends the descaling procedure. You cannow turn the unit back on and resume normalstartup and cooking operations.
How Much DISSOLVE to UseModel DissolveUltra 3 1/2 Gallon
Ultra 5 1 Gallon
Ultra 10 (Elec.) 1 Gallon (ea.)
Ultra 10 (Gas) 1½ Gallon
Gemini 6 & 10 1 Gallon (ea.)
Note: Some SteamCraft Ultra models (theelectric powered Ultra 10 and Gemini 6 and 10,for example) have two generators and twodescaling ports. Both units should be descaledat the same time, using this procedure