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