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Parts Manual
Counter Type Electric Convection Steamer
Series: SteamCraft Models 21CET16
1333 East 179th Street Cleveland, Ohio 44110
Phone: (216) 481-4900
1-800-338-2204 Fax: (216) 481-3782
www.clevelandrange.com
CLEVELAND RANGE 21CET16 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,
1. To turn the unit on, depress the red on/off rocker switch.
• 115 VAC is sent to the red indicator light. • 115 VAC is sent to the normally open drain valve closing it. • 115 VAC is sent to H and N of the water level board
2. With the water level board energized and no water in the generator
• After a 5 second delay, 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 from the HEAT terminal to the timed manual switch. • 115 VAC is sent to the preheat thermostat.
• 115 VAC is then sent through the high limits to the coil of condensate solenoid. • The condensate solenoid opens sending cold water down the compartment
drain. • 115 VAC is also sent through the high limits to the coil of the contactor.
• When the contactor is energized supply voltage is sent to both of the elements. • The heat circuit will stay energized until the preheat thermostat opens at 185
degrees. 3. 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 coil of the R2 relay • The R2 relay energizes • R2B contacts close and 115 VAC is sent to the motor of the timer • R2A contacts close and 115 VAC is through the optional door switch to the normally
closed contacts of the high limits • 115 VAC is then sent through the high limit to the coil of condensate solenoid and the
coil of the mercury 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.
4. When the contactor is energized supply voltage is sent to both of the elements. 5. When the timer times out 115 VAC is sent to the 3 second timer and then to the buzzer for 3
seconds. 6. When the water level reaches the high probe then 115 VAC is removed form the FILL
terminal and the fill solenoid is turned off.
7. After the water level drops below the high probe for 5 seconds 115 VAC is sent to the FILL
terminal again. 8. The red on/off rocker switch is depressed and the unit is turned off.
• 115 VAC is removed from the timer and heat circuits. • 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.
FILL VALVE
L106380 G
THERMAL SWITCH
2
BLOWDOWN OPTION
( HEAT STANDBY )
POWER SWITCH
DRAIN VALVE
HI LIMIT SWITCHES
1
3
CONDENSERVALVE
CONTACTOR
3 MIN TIMER
2 1
POWER ON
R
N
PROBES
HIXL C
WATERBOARD
FILLH
HEAT
STEAMCRAFT 5.1 MECHANICAL TIMER
BREAKERRESET CIRCUIT
2
8
4
7
TIMER DESCALE
BLK
3
CONNECTION
3Ø
CUSTOMER
L3
L2
L1
TB
N
L3
L2
TB
L1
X2 SECONDARY
H1 PRIMARY
120V
L
NO1
56
3
NO
A L
X1
H4
FUSEBLOCK
FU
FU TB
WHT
& RESET SWITCHDESCALE INDICATOR
DRYING ELEMENT
FU
CONTACTORS
FUTO H4
TO
380/415V 3Ø W / NEUTRALCUSTOMER CONNECTION
CONTACTORS
FUSEBLOCKTO H1
HEATING ELEMENTS
TRANSFORMER
INTERMITTENT
CONTACTOR
TO
R1
C NC
R2
R2ANC
MOTOR
C NO
( OPT )NO SWITCH R1(SCS OPT)
C DOOR
3
2
1
BUZZER
MANUALTIMEDMANUAL
NOC
R2B
3 SEC TIMER
TIMED
ELECTRO-MECHANICALTIMER
105966 - RELAY
UNITS )109381 - FUSE, 1.5 A ( FOR 480 V
240 V UNITS )109380 - FUSE, 3.5 A ( FOR 208 V &
109374 - FUSEBLOCK
101541 - TERMINAL BLOCK SECTIONAL
109240 - 6 POLE TERMINAL BLOCKTHERMAL SWITCH ( HSB )
TIMED/MANUAL
20
PRP
RED
8 N
27
WH
T/R
ED
WHT/REDPRP
1 32
11RED
RED
GRN
WHT/RED
INTERMITTENT BLOWDOWN OPTION
WHT/RED
4
BLK
TANRED
TAN
WHT/GRA
3321
WHT
5
ORN
87 5
BLU
8
34
216
BLKBLK
WHT/BLU
WHT/RED
PARTS LIST
4 19994 - DESCALE INDICATOR RESET SW
105789 - THERMAL SWITCH ( HSB )
107241 - WATER BOARD
107239 - PROBE
44168 - TERMINAL BLOCK
108880 - DOOR SW (MAGNETIC)
106911 - DESCALE TIMER
22221 - DRAIN VALVE( THRU SCS ) 11SWITCH
TO
TO
10
8
9
67
5
FILL
104224 - TIMED/MANUAL SWITCH
19993 - POWER SWITCH
20478 - 3 MIN TIMER3
2
1
COND
PRP
12
RED
BLU
BLU
PRP
WH
T/BL
U
RE
D
11
GRN
15 103905 - CONTACTORS
106541 - INTMT BLOWDOWN TIMER
110198 - MOTORIZED TIMER
108331 - RESET CIRCUIT BREAKER
22 101540 - END SEGMENT
20304 - GROUND LUG
41350 - BUZZER
20477 - 3 SEC TIMER
21
20
19
17
18
16
27
26
25
24
103731 - HI LIMIT SWITCHES
22218 - WATER SOLENOIDS
20535 - TRANSFORMER
BLK
12
14
13
BLK
BLK PRP
16
23
13
BLK
WH
T/BL
U
WHT
1
GRA
2
PNK
REDN
WH
T/R
ED
YEL
BLU
RE
D
OR
N
HE
AT
FIL
LH
N
XL
YEL
10
17
19
BLK
BLK21
36
BLU
RE
D
ORN
STEAMCRAFT 5.1 MECHANICAL TIMER
JUMPER POSITIONX1X2
BLK
GRN
RED
HI C
WH
T
BLK
14 FOR 480 VOPERATION
9
208/240
H3120
H1 H2 H4
H3H1 H2 H4
BLKBLK
25 26 BLK
CUSTOMER CONNECTION21
22
WHT/RED
L1 L2 L3
23
21 3 4
BLK
15
ORN
FU
FU
YEL
HEATER
P106380 G
BO
TTO
M
WHT
REDBLK
DRYINGELEMENTWHT
WHT
ELEMENTS
WHTBLKRED
WHTBLK
RED
BLKWHTRED
TOP
65 24
WHT/BLK
7
HEAVY WIRE LINES INDICATESNOTE:
12 AWG HI - TEMP WIRE
( SEE RATING PLATE )
DOOR SWITCH ( SCS )REMOVED W / OPTIONAL
R2
LT BLU18
NOC
NC
PNK
WH
T/BL
K
27
LT BLU
LT B
LU
WHT/BLK
BLK
OR
N/B
LK
OR
N
( HEAT STANDBY )THERMAL SWITCH
BLOWDOWN OPTION
TIMERBLOWDOWN
NCC
2
3
1
R1
DRAIN VALVE
L106379 F
( SCS OPT )
DOOR SWITCH
MAGNETIC
3 MIN TIMER
TRANSFORMER
( ELECTRONIC )
MANUAL
TIMED
COMPARTMENT THERMOSTAT
FU
POWER SWITCH
DESCALETIMER
687
2
5
3 24
1
CONTACTOR
CONDENSER
HI LIMIT SWITCH SWITCH
HI LIMIT
24 VAC
TIMER
( OPT )
COIL R1
VALVE
PROBES
BOARDWATER
& RESET SWITCHDESCALE INDICATOR
POWER ON
R
HEAT
FILL
H
N XL HI
L
NONO
3
1
LA
FILL VALVE
C
FUSEBLOCK
380/415V 3Ø W / NEUTRALCUSTOMER CONNECTION
FUSEBLOCK
STEAMCRAFT 5.1 ELECTRONIC TIMER
RESET CIRCUIT
BLK
3
BREAKER
FU
FU
TB
L1
CONNECTIONCUSTOMER
L3
L2
TB
L2
N
L3
L1
HEATING ELEMENTS
H1 PRIMARY
X2 SECONDARY
H4
X1
120V
TB
CONTACTORS
FUTO H4
WHT
DRYING ELEMENT
CONTACTORS
FUTO H1
TO
TRANSFORMER
CONTACTOR
INTERMITTENT
TO
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
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