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Download 21CET8 Sequence of Operation, Schematics and Troubleshooting
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Statement of Responsibilities This document is for use by experienced and trained Qualified Cleveland Range, LLC Authorized Service Representatives who are familiar with both the safety procedures, and equipment they service. Cleveland Range, LLC assumes no liability for any death, injury, equipment damage, or property damage resulting from use of, improper use of, or failure to use the information contained in this document. Cleveland Range, LLC has made every effort to provide accurate information in this document, but cannot guarantee that this document does not contain unintentional errors and omissions. The information in this document may be subject to technical and technological changes, revisions, or updates. Cleveland Range, LLC assumes no liability or responsibility regarding errata, changes, revisions, or updates. Qualified Cleveland Range, LLC Authorized Service Representatives are obligated to follow industry standard safety procedures, including, but not limited to, OSHA regulations, and disconnect / lock out / tag out procedures for all utilities including steam, and disconnect / lock out / tag out procedures for gas, electric, and steam powered equipment and / or appliances All utilities (gas, electric, water and steam) should be turned OFF to the equipment and locked out of operation according to OSHA approved practices during any servicing of Cleveland Range equipment Qualified Cleveland Range, LLC Authorized Service Representatives are obligated to maintain up-to-date knowledge, skills, materials and equipment. Cleveland Range, LLC Ph: 1-216-481-4900 Fx: 1-216-481-3782 1333 East 179th St., Cleveland, Ohio, U.S.A. 44110 Visit our Web Site at 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. L1 1Ø TB 6 5 TB 2 CONTACTOR A DRYING ELEMENT HEATING ELEMENTS DRYING ELEMENT H1 PRIMARY WHT HEATING ELEMENTS H4 X2 SECONDARY DESCALE INDICATOR & RESET SWITCH TO PROBES BUZZER 3 SEC TIMER 2 CONTACTOR CONDENSER VALVE COOLING FAN DRAIN VALVE L106347 M ( STACKED UNITS OPTION ) HI LIMIT SWITCH R1 ( OPT ) 1 3 HEAT WATER BOARD FILL H N XL HI C FILL VALVE NO X1 L CONTACTOR FU FU L NO POWER ON R TIMED R2 DOOR SWITCH (SCS OPT) R1 C 120V TO 1Ø IS NOT PERMITTED FIELD CONVERSION FROM 3Ø STEAMCRAFT 3.1 MECHANICAL TIMER (PROBE) CUSTOMER CONNECTION 380/415V N L2 L3 3Ø L2 L1 3Ø W/ NEUTRAL CUSTOMER CONNECTION L2 1Ø CUSTOMER CONNECTION L1 3Ø TB 1 3 1 2 NO NO C MANUAL 3 MIN TIMER R2A NO R2B TIMED 78 3 2 4 RESET CIRCUIT BREAKER L3 BLK DESCALE TIMER POWER SWITCH MANUAL C C NO MOTOR NC FU HEAT STANDBY TIMER 3 1 ELECTRO-MECHANICAL TIMER NC 2 FU FU INTERMITTENT BLOWDOWN TIMER BLOWDOWN OPTION R1 C 1 3 FU STEAMCRAFT 3.1 MECHANICAL TIMER (PROBE) NO 23 14 16 R2 PNK ORN/BLK LT BLU WHT/BLK BLK NC BLK BLK BLK BLK 17 18 BLK RED GRN WHT 15 C RED LT BLU ORN C BLU 19 WHT/BLU LT BLU WHT HI BLK XL X1 X2 208/240 VOLT JUMPER POSITION FOR 480 V OPERATION H4 H2 H3 H1 H4 H2 H3 H1 HEAT FILL H BLK BLK WHT WHT WHT 24 TAN 26 YEL YEL L1 7 25 CUSTOMER CONNECTION WHT/BLK N 12 WHT/BLK WHT/BRN BLU WHT/RED BRN BRN WHT/BRN BLK RED 8 3 2 4 4 TAN 6 78 3 2 1 1 6 5 WHT COND FILL 10 BLK WHT 5 BRN RED GRN RED BLK BLK WHT YEL BLU BLU RED WHT/BLU WHT/GRA BLK GRA 3 2 1 L3 L2 TAN TAN 3 13 BLK N WHT YEL RED BLK 2 WHT/BLK 27 28 BLK REMOVED W / OPT DOOR SWITCH ( SCS ) WHT 1 FU BLK WHT BLK WHT BLK WHT/BLU 20 FU BLK 3 2 1 11 9 BLK BRN TAN HEATER ELEMENT DRYING ELEMENT BLK WHT HEATER ELEMENT RED WHT DRYING ELEMENT RED PARTS LIST: INTERMITTENT BLOWDOWN OPTION SINGLE PHASE WIRING CONFIGURATION TO FUSE BLOCK TIMED/MANUAL SWITCH 7 BRN L2 L3 BLK 6 TERMINAL BLOCK CUSTOMER CONNECTION ( TO HIGH LIMIT ) 3 WHT 2 YEL 1 WHT/BLK WHT/BRN DRYING ELEMENT BLK HEATER RED ELEMENT WHT DRYING ELEMENT BLK HEATER RED ELEMENT WHT BLK BLK ( TO COND SOL ) 22 3 2 1 WHT RED RED WHT RED RED 8 19993 - POWER SWITCH 2 104224 - TIMED / MANUAL SW 3 4 19994 - DESCALE IND RESET SWITCH 20478 - 3 MIN TIMER 5 106911 - DESCALE TIMER 6 109239 - HEAT STANDBY TIMER 7 44168 - TERMINAL BLOCK 8 9 22221 - DRAIN VALVE 107211 - COOLING FAN ( OPT ) 10 11 RED 23 GRN L1 TIMED/MANUAL SWITCH ( THRU SCS ) BLK N 21 BRN 1 22218 - WATER SOLENOIDS 17 18 19 20 21 22 23 24 25 26 27 28 108880 - DOOR SW ( MAGNETIC ) 41350 - BUZZER 110198 - MOTORIZED TIMER 20477 - 3 SEC TIMER 104234 - CONTACTOR 106541 - INTMT BLOWDOWN TIMER 105966 - RELAY 101540 - END SEGMENT 101541 - TERM BLOCK SECTIONAL 20304 - GROUND LUG 109380- 3.5 AMP, 600V FUSE 109374 - FUSE BLOCK 103731 - HI LIMIT SWITCH 12 300022 - CONTACTOR 13 14 15 16 108331 - RESET CIRCUIT BRKR 20535 - TRANSFORMER 107241 - WATER BOARD 107239 - PROBE P106347 M STEAMCRAFT 3.1 ELECTRONIC TIMER (PROBE) CUSTOMER CONNECTION 380/415V L1 FIELD CONVERSION FROM 3• 3Ø L2 TO 1• IS NOT PERMITTED W/ NEUTRAL L3 DRYING ELEMENT N FU FU TB HEATING ELEMENTS CONTACTOR L1 CUSTOMER CONNECTION 1• L2 FU FU DRYING ELEMENT TB CONTACTOR L1 CUSTOMER CONNECTION L2 3• L3 HEATING ELEMENTS TB FU FU H4 RESET CIRCUIT BREAKER H1 PRIMARY X2 SECONDARY X1 120V BLK DESCALE TIMER L 3 2 4 1 78 A NO 6 5 WHT L NO DESCALE INDICATOR & RESET SWITCH 3 2 FILL VALVE 1 POWER SWITCH POWER ON 3 MIN TIMER R HEAT FILL H N TRANSFORMER 24 VAC COMPARTMENT THERMAL SWITCH WATER BOARD TO PROBES XL HI C ELECTRONIC TIMER FU COIL R1 ( OPT ) DOOR SWITCH ( SCS OPT ) MAGNETIC TIMED CONTACTOR R1 NO MANUAL C HI LIMIT SWITCH CONDENSER VALVE 1 2 HEAT STANDBY TIMER 3 ( STACKED UNITS OPTION ) COOLING FAN BLOWDOWN OPTION R1 C NC 1 INTERMITTENT BLOWDOWN TIMER DRAIN VALVE 2 3 L106346 M Steamer won't steam PROBLEM: 21CET8 21CET16 21CEA10 Steamer won't steam. Is the red light on? Is there supply voltage to the primary of the transformer? No No Supply power to the steamer. No Replace the transformer. Yes Yes See STEAMER WON'T FILL No Is there 115 VAC at the secondary of the transformer? Is there water in the sight glass? Yes Yes Replace the wires to the water board. No Is there 120 VAC between terminals H and N on the water board? Replace the on/off rocker switch Yes Replace the water board With a jumper between XL and C on the water board, is there 120 VAC between N and Heat? No No Is there 120 VAC between terminals N and Heat on the water board? Yes Yes Replace the wire from the water board to the long probe. No Is there debris on the Long probe? Yes Clean or replace the probe assy. Is there 115 VAC to the common terminal of the timed/manual switch? No Replace the wires to the switch. Is there 115 VAC to the high limit? Yes Does the unit steam in Manual mode? No Does the steamer have the optional door switch? No No Replace the wires to the high limit. Yes No Yes Replace the timer. Yes Does steamer steam with door switch bypassed? Is there 115 VAC leaving the high limit? No Replace the high limit. Yes Is there 115 VAC to the coil of the contactor? No Replace the wires to the contactor coil. Yes Yes Adjust or replace the door switch. Is there an amp draw at the element? Yes Wait longer for the steam. Heat from the element will heat the water to steam. No Replace the element. Steamer wont fill. PROBLEM: 21CET8 21CET16 24CEA10 Steamer wont fill Yes Is there supply voltage to the steamer? No Supply power to the steamer. Yes Is there water to the steamer? No Supply cold water to the steamer. Yes Is there 120 VAC between the H and N on the water board? No Replace the on/off rocker switch. Yes Is there 120 VAC between Fill and N on the water board? No Remove the wire from the HI terminal on the water board. Is there 120 VAC between Fill and N? No Replace the water board Yes Yes Replace wiring to the fill solenoid. No Is there 120 VAC across the coil of the fill solenoid? Is there debris on the HI probe in the probe assy? Yes Replace the fill solenoid No Yes Is water leaving the fill solenoid? Clean the probes or replace the probe assy. Yes Replace wiring to drain valve. No Does the steamer have the optional intermittent blowdown timer? No Is there 120 VAC across the coil of the drain valve? Yes Yes Replace the wiring to the intermittent blowdown timer. No Is there 120 VAC between terminals 2&3 on the timer? Yes Replace the intermittent blowdown timer. Is water draining from the generator? Yes Replace the drain valve. No If water is leaving the fill solenoid and not draining from the generator where is it going? check for leaks.. No Replace the wire to the Hi probe. PROBLEM: 21CET8, 21CET16, 24CEA10 Electronic timer displays "PAUS" and won't count down Timer displays "paus" and won't count down Is steam heating the cooking cabinet above 192 degrees (the set temp of the thermo-switch)? No See Steamer won't steam No Replace the electronic timer Yes Replace the thermo-switch Yes Does the timer count down when the thermo-switch is bypassed? PROBLEM: 21CET8, 21CET16, 24CEA10 Steam leaks around the door. Steam leaks around the door Is COLD water supplied to both water lines to the steamer? No Supply cold water(35-60 psi) to the steamer. Yes Is the door gasket physically damaged? Yes Turn over the gasket or replace it. No Is the door out of alignment? No Is the drain obstructed? No Is there 120 VAC across the coil of the condensate solenoid? Yes Yes Yes Replace the door bearings and pins. Remove the obstruction Is the solenoid opening? Yes Replace the condensate spray nozzle No No Replace the wiring to the condensate solenoid. Replace the condensate solenoid. PROBLEM: 21CET8 21CET16 24CEA10 Steamer overfills. (Water sprays into cooking cabinet) There is an obstruction in the drain. Remove the obstruction. Yes Does the rise in the water level in the sight glass stop when the cooking cabinet door is opened? Steamer overfills (Water sprays into the cooking cabinet) Start Does the water rise in the sight glass when steam is generated and 0 VAC to the fill solenoid? Yes Yes Does the water level in the sight glass stop at the HI (short) probe on the initial fill? No No No Replace the fill solenoid There is an obstruction in the generator causing it to pressurize. Delime the steam generator thoroughly. There is an obstruction in the plumbing to and from the sight glass. Remove the debris (delime thoroughly). Yes Does water spray in the cabinet before the water reaches the HI (short) probe? No Replace the three minute timer. Remove the wire from the Fill terminal on the water board. Is there 120 VAC across the coil of the fill solenoid? Yes Yes Is there 120 VAC across the coil of ;the fill solenoid when the HI (short) probe is submerged? No No Replace the water level board. Yes With HI and C terminals on the water board jumped, Is there 120 VAC between terminals N and Fill? No Clean or replace the probe assembly. Yes Is there debris on the HI (short) probe? No Replace the wire to the probe assembly Replace the fill solenoid PROBLEM: 21CET8 21CET16 24CEA10 Steamer won't stop steaming with door open Steamer won't stop steaming Is the timed/manual switch in the timed position with no time on the timer? No Steamer will steam constantly in the manual position. Put the timed/manual switch in the timed position with no time on the timer. Yes Does the steamer have the optional door switch? No Does steamer continue to steam with both wires removed from terminal 1 on the heat standby timer? Yes Is there 120 VAC to the coil of the contacter? Yes No Is there an amp draw at the element? Yes Yes No Replace the timer. Adjust or replace the door switch . Replace the contactor Replace the heat standby timer. Problem: 21CET8, 24CEA10 Steamer won't preheat Steamer won't preheat Is the timed/manual switch in the timed postion with time on it or in the manual postion? Yes See Problem: steamer won't steam. No This steamer is not equiped with a preheat thermostat. The timed manual switch must be in manual or time must be on the timer. No When supply voltage is removed from the element steam is still made for approximately 10 seconds. This is normal. Problem: 21CET16 Steamer won't preheat Steamer won't preheat Does the steamer have a preheat thermostat Is the timed/manual switch in the timed postion with time on it or in the manual postion? No Yes Yes Is there continuity on the normally closed contacts of the preheat thermostat? No Replace the preheat thermostat Yes See Problem: steamer won't steam. No This steamer is not equiped with a preheat thermostat. The timed manual switch must be in manual or time must be on the timer. Cleveland Range, LLC Ph: 1-216-481-4900 Fx: 1-216-481-3782 1333 East 179th St., Cleveland, Ohio, U.S.A. 44110 Visit our Web Site at www.clevelandrange.com L1 1Ø TB 6 5 TB 2 C C NO FU FU L NO R INTERMITTENT BLOWDOWN TIMER TO 1Ø IS NOT PERMITTED FIELD CONVERSION FROM 3 DRYING ELEMENT HEATING ELEMENTS DRYING ELEMENT H1 PRIMARY WHT HEATING ELEMENTS H4 120V C FILL VALVE DESCALE INDICATOR & RESET SWITCH X2 SECONDARY L NO NO R1 BUZZER 3 SEC TIMER 2 CONTACTOR CONDENSER VALVE COOLING FAN DRAIN VALVE L300163 D ( STACKED UNITS OPTION ) HI LIMIT SWITCH COIL R2 ( OPT ) 1 3 WATER LEVEL R1 X1 LOW WATER CUT-OFF DOOR SWITCH (SCS OPT) R3 TIMED POWER ON A CONTACTOR CONTACTOR STEAMCRAFT 3.1 MECHANICAL TIMER ( FLOAT ) CUSTOMER CONNECTION 380/415V N L2 L3 L1 L2 3Ø 1 3 1 FU MANUAL 3 MIN TIMER FU FU 3Ø W/ NEUTRAL CUSTOMER CONNECTION L2 1Ø CUSTOMER CONNECTION L1 3Ø TB 78 3 2 4 RESET CIRCUIT BREAKER L3 BLK DESCALE TIMER POWER SWITCH TIMED R3A NO R3B C C NO MOTOR NC 2 NO ELECTRO-MECHANICAL TIMER R2 1 3 HEAT STANDBY TIMER 2 NC BLOWDOWN OPTION R2 C 1 3 FU STEAMCRAFT 3.1 MECHANICAL TIMER ( FLOAT ) BLK 3 2 1 20 WHT WHT BLK WHT BLK 17 BLK BLK WHT BLK BLK BLK LT BLU 19 REMOVED W / OPT DOOR SWITCH ( SCS ) X2 FU H4 H2 H3 H1 BLK BLK BLK WHT WHT WHT 26 BLU BLK R1 2 JUMPER POSITION FOR 480 V OPERATION H4 H2 H3 H1 WHT/GRA BLU WHT BLU 24 YEL YEL 27 28 BLK 23 WHT 1 FU X1 208/240 VOLT WHT/BLU BLK BLK RED BLK ORN/BLK WHT/BLK PNK BLK RED LT BLU R3 14 15 WHT/BLU 23 NC BLU 18 NO RED LT BLU ORN C 7 L1 L2 L3 25 TAN RED WHT/BLK N BLU 6 3 2 4 4 78 TAN 3 2 1 1 6 5 BRN BLK BLK RED 10 8 WHT/RED BLU BLU WHT/BLU 5 RED 9 RINSE COND FILL BLK BLU WHT BLK BLU YEL WHT/GRA BLK 3 2 1 BRN GRN WHT WHT BLU WHT/GRA WHT/GRA 3 12 WHT/BLK WHT/BRN GRA BRN WHT/BRN WHT/BLK CUSTOMER CONNECTION DRYING ELEMENT BLK WHT HEATER ELEMENT RED 11 BLK BLK TAN HEATER ELEMENT WHT DRYING ELEMENT BRN RED PARTS LIST: INTERMITTENT BLOWDOWN OPTION SINGLE PHASE WIRING CONFIGURATION TO FUSE BLOCK 7 N BRN BRN L2 L3 BLK 6 TERMINAL BLOCK CUSTOMER CONNECTION WHT/BLK WHT/BRN DRYING ELEMENT BLK HEATER RED ELEMENT WHT DRYING ELEMENT BLK HEATER RED ELEMENT WHT ( TO HIGH LIMIT ) 3 WHT 2 YEL 1 BLK BLK ( TO COND SOL ) 23 22 3 2 1 WHT RED RED R2 WHT RED RED 8 19993 - POWER SWITCH 104224 - TIMED / MANUAL SW 3 4 19994 - DESCALE IND RESET SWITCH 20478 - 3 MIN TIMER 5 106911 - DESCALE TIMER 6 7 109239 - HEAT STANDBY TIMER 44168 - TERMINAL BLOCK 8 9 22221 - DRAIN VALVE 107211 - COOLING FAN ( OPT ) 10 11 RED GRN L1 TO TIMED/MANUAL SWITCH ( THRU SCS ) BLK 21 1 2 22218 - WATER SOLENOIDS 17 18 19 20 21 22 23 24 25 26 27 28 108880 - DOOR SW ( MAGNETIC ) 41350 - BUZZER 110198 - MOTORIZED TIMER 20477 - 3 SEC TIMER 104234 - CONTACTOR 106541 - INTMT BLOWDOWN TIMER 105966 - RELAY 101540 - END SEGMENT 101541 - TERM BLOCK SECTIONAL 20304 - GROUND LUG 109374 - FUSE BLOCK 109380 - FUSE 3.5A 600V 103731 - HI LIMIT SWITCH 12 300022 - CONTACTOR 13 14 15 16 108331 - RESET CIRCUIT BRKR 20535 - TRANSFORMER 103726 - FLOAT - P300163 D PART NUMBER :FK300284 Descaling Procedure-SteamCraft Ultra and Gemini Series How Much DISSOLVE to Use Model Dissolve Ultra 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.) 6. Let the descaler soak in generator for approximately one hour: 7. After one hour, turn the unit power Off: This will drain and rinse the generator for about 3 minutes. 1. Turn the unit OFF and open the doors: This will drain and rinse the generator for about 3 minutes. 2. Turn the unit power back On: The generator will begin to refill with water. 3. Select Timed with the Timed/Manual switch: DO NOT start the timer, since you do not want to heat the water during descaling. Leave the doors open. 4. Remove descaling port cap and add with the specified amount of DISSLOVE: (See chart above) Do this while the unit is refilling. The generators can take-up to 8 minutes to refill. 5. After refill has stopped, add extra tap water into the descaling port until liquid is seen entering the cooking cabinet. Note: Ultra 10 gas will have liquid coming out of the drain, Adding extra water when descaling will raise the descaling solution higher than the normal fill level, allowing the DISSOLVE to work on sensors and surfaces above the water line Note: Some SteamCraft Ultra models (the electric powered Ultra 10 and Gemini 6 and 10, for example) have two generators and two descaling ports. Both units should be descaled at the same time, using this procedure 8. After the 3-minute drain cycle completes, turn the unit back ON. After the filling has stopped, add water until liquid enters the cooking compartment (or drain for the ultra 10 gas), and then turn the unit OFF. This will drain and flush any residue from the water level control assembly. Replace descaling cap. 9. After the 3 minute drain cycle completes, Turn the unit ON and set the Timer for 20 minutes: Make sure the Time/Manual switch is in the timed setting and the doors are closed. 10. When the timer times out (after 20 minutes) turn the power Off: This will drain and rinse the generator for about 3 minutes. This ends the descaling procedure. You can now turn the unit back on and resume normal startup and cooking operations.
