Statement Of Responsibilities

Transcript

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 24CGA10 SEQUENCE OF OPERATIONS Mechanical Timer 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 normally open drain valve closing it. • 115 VAC is sent to H and N of the water level board 115 VAC is sent to the timed/manual switches. • • 115 VAC is sent to the heat standby timer which will energize the R5 relay 20 seconds every 6 minutes to maintain heat while unit is idle 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 24 VAC heat circuit transformer. • 3. When the timed/manual switch is in the timed position and time is on the timer for the top cabinet only • 115 VAC is sent from the timer to the coil of the R6 relay. • The R6 relay energizes • R6B contacts close sending 115 VAC to the timer motor. • R6A contacts close sending 115 VAC through the door switch (optional) to the steam solenoid, condensate solenoid and R1 relay. • R1 is energized closing the R1 contacts. • 24 VAC is sent from the 24VAC transformer to the normally open contacts of R2. • 24 VAC is sent from the 24VAC transformer to the R4 coil. • R4 is energized and the R4 contacts are closed. • 24 VAC is sent to one side of the ignition module. • 24 VAC is sent to the R3 relay coil • R3 is energized and the R3 contacts are closed. • 115 VAC is sent through the now closed R4 contacts to the normally open steam relief valve closing it. • 115 VAC is sent to the fan motor. • The fan motor is energized and the air prover switch closes. • 24 VAC is sent through the normally closed highlimit and the now closed air prover switch to the other side of the ignition module. 4. With 24 VAC to both sides of the ignition module. • Spark is sent to the igniter. • 24VAC is sent to the pilot coil on the gas valve and gas is sent to the pilot. • When flame is generated and 1.0 micro amps DC is detected, 24 VAC is sent to the main coil of the gas valve igniting the main burner on low flame. • • Steam is energized and sent to the cooking compartment. When the mechanical timer times down a buzzer will sound and the timer will open removing 115 VAC from the heat circuit. 5. When the timed/manual switch is in the timed position and time is on the timer for the bottom cabinet only • 115 VAC is sent from the timer to the coil of the R7 relay. • The R7 relay energizes • R7B contacts close sending 115 VAC to the timer motor. • R7A contacts close sending 115 VAC through the door switch (optional) to the steam solenoid, condensate solenoid and R2 relay. • R2 is energized closing the R2 contacts. • 24 VAC is sent from the 24VAC transformer to the normally open contacts of R1. • 24 VAC is sent from the 24VAC transformer to the R4 coil. • R4 is energized and the R4 contacts are closed. • 24 VAC is sent to one side of the ignition module. • 24 VAC is sent to the R3 relay coil. • R3 is energized and the R3 contacts are closed. • 115 VAC is sent through the now closed R4 contacts to the normally open steam relief valve closing it. • 115 VAC is sent to the fan motor. • The fan motor is energized and the air prover switch closes sending 24 VAC to the other side of the ignition module. 6. With 24 VAC to both sides of the ignition module. • Spark is sent to the igniter. • 24VAC is sent to the pilot coil on the gas valve and gas is sent to the pilot. • When flame is generated and 1.0 micro amps DC is detected, 24 VAC is sent to the main coil of the gas valve igniting the main burner on low flame. • Steam is energized and sent to the cooking compartment. • When the timer times down, the closed contact will open removing 115 VAC from the heat circuit. • 115 VAC will be sent through the now closed contacts to the 3-second timer. • For 3 seconds 115 VAC will be sent to the buzzer and it will buzzzzzz. 7. When the timed/manual switch is in the timed position and time is on the timer for both cabinets • 115 VAC is sent from the timer through the door switch (optional) to both steam solenoids, both condensate solenoids and both relays. • Both relays are energized closing the relay contacts. • 24 VAC is sent from the 24VAC transformer through the R1 and R2 contacts to the high coil on the gas valve. • 24 VAC is sent from the 24VAC transformer to the R4 coil. • R4 is energized and the R4 contacts are closed. • 24 VAC is sent to one side of the ignition module. • • 24 VAC is sent to the R3 relay coil. R3 is energized and the R3 contacts are closed. • 115 VAC is sent through the now closed R4 contacts to the normally open steam relief valve closing it. • 115 VAC is sent to the fan motor. • The fan motor is energized and the air prover switch closes sending 24 VAC to the other side of the ignition module. 8. With 24 VAC to both sides of the ignition module. • Spark is sent to the igniter. • 24VAC is sent to the pilot coil on the gas valve and gas is sent to the pilot. • When flame is generated and 1.0 micro amps DC is detected 24 VAC is sent to the main coil of the gas valve igniting the main burner on high flame (the high coil was energized in step 7). • Steam is energized and sent to the cooking compartments. • When the timers time down the buzzers will sound and each timer will open removing 115 VAC from the heat circuit. 9. When the water level reaches the high probe then 115 VAC is removed form the FILL terminal and the fill solenoid is turned off. 10. After the water level drops below the high probe for 5 seconds 115 VAC is sent to the FILL terminal again. 11. 115 VAC is turned of by depressing the red on/off rocker switch. • 115 VAC is removed from the timer and heating 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. • The fill solenoid is energized for 3 minutes flushing the drain. 3 1 3 R2 R2 N L1 TB L NO R POWER ON SP 24V GND NO A L 2 BUZZER 3 SEC TIMER 3 1 WHT CONDENSER VALVE R1 COIL STEAM VALVE 2 BUZZER HI C L105974 M GAS VALVE HIGH LIMIT RESET SWITCH FAN MOTOR STEAM VALVE R2 COIL CONDENSER VALVE 1 3 3 SEC TIMER R4 TO PROBES DESCALE INDICATOR NO & RESET SWITCH DOOR SWITCH (SCS OPT) R7 TIMED DOOR SWITCH (SCS OPT) R6 TIMED UPPER DRAIN VALVE HEAT WATER BOARD FILL H N XL HI C FILL VALVE R3 STEAM RELIEF VALVE PRIMARY 115V AIR PROVER PRESS SWITCH SECONDARY 24V R4 COIL MV/PV PV MV R3 COIL CONTROL MODULE TRANSFORMER R5 COIL C MANUAL NO C MANUAL NC 2 R3 1 C 2 6 5 STEAMCRAFT 10 GAS - MECHANICAL CONTROL CUSTOMER CONNECTION 2 WIRE, 115 VAC BLK DESCALE TIMER 78 3 2 4 3 MIN TIMER 1 POWER SWITCH TIMED BLOWDOWN TIMER OPTION MANUAL R6A NO R6B C C NO MOTOR NC TIMED UPPER MOTORIZED TIMER MANUAL R7A NO R7B C C NO MOTOR NC LOWER MOTORIZED TIMER 2 R1 R4 R5 R1 HEAT STANDBY TIMER 3 1 IGNITOR 24V GND STEAMCRAFT 10 - GAS MECHANICAL TIMER 10 RED 21 17 C ORN BLU HI N RED WHT ORN BLU TOP COND PRP 1 WHT LT BLU WHT/RED GRA 14 12 YEL RED 19 13 9 WHT/GRA ORN 8 4 12 2 WHT 14 12 WHT 3 23 BLK 13 9 WHT 19 26 ORN YEL BLK WHT/BLK ORN/BLK 2 BLK 3 2 4 1 WHT/RED 78 BRN 24 30 9 WHT/ORN ORN WHT/YEL 6 5 3 2 PRP WHT/RED 1 3 WHT LT BLU TAN 8 1 25 WHT/ORN 20 WHT/YEL WHT/YEL 16 GRN W/BLU RED BRN TAN YEL BRN RED LT BLU 5 1 8 4 5 1 8 4 19 13 3 9 14 12 28 2 19 13 9 14 12 BLK PARTS LIST BLK LT BLU 14 12 LT/BLU 3 FILL WHT/BRN RED RED WHT RED BLK WHT LT BLU 13 9 LT BLU RED TAN PRP 18 WHT R7 4 WHT ( OPTIONAL ) WHT/GRA REMOVED W / OPTIONAL DOOR SWITCH ( SCS ) 9 14 12 14 12 YEL YEL 9 8 5 6 7 4 8 4 3 HI VOLT 13 9 GRA RED LT BLU LT BLU WHT/BLK 13 INTERMITTENT BLOWDOWN YEL LT/BLU 5 1 5 1 WHT ORN PNK TAN 5 1 YEL 1 CUSTOMER CONNECTION 18 8 4 2 WHT BLK BLK RED BLU YEL WHT/YEL RED WHT WHT/GRA GRA WHT BLK BLK BLK ORN RED W/BLU 32 18 26 22 PRP 5 1 8 4 15 WHT BLK WHT BRN YEL WHT/RED LT/BLU 24v 11 WHT/BLK 4 9 1 YEL YEL YEL WHT BLK NC YEL BRN BLK WHT 7 2 29 14 BLK YEL YEL GRA NO 1 8 13 14 12 BOT COND BRN BRN RED LT BLU 5 18 BLK LT BLU WHT BLK 4 31 WHT/RED WHT/BLK 3 5 1 8 BLK 8 WHT/GRA WHT 5 RED BLK WHT/RED PRP W/BLU PNK RED WHT 4 C RED 22 BLU ORN REMOVED W / OPTIONAL DOOR SWITCH ( SCS ) 9 14 12 27 GRN BLK W/BLU HEAT FILL H ORN 1 13 REF BLU ORN 1 18 19 RED R6 ORN/BLK LT BLU LT BLU WHT/BLK 2 4 27 LT BLU 3 1 8 GRN RED 32 WHT/BLK 5 XL C 13 HI P M 7 RED 2 GRN BLK RED BLK BLK NC RED WHT 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 110198 - MOTORIZED TIMER 104224 - TIMED / MANUAL SWITCH 20477 - 3 SEC TIMER 41350 - BUZZER 19993 - POWER SWITCH 19994 - DESCALE IND / RESET SW 108880 - DOOR SW ( SCS ) MAGNETIC 22193 - COMP STEAM SOLENOID 106911 - DESCALE TIMER 105782 - GAS VALVE ( NAT ) 1057821 - GAS VALVE ( LP ) 20528 - TRANSFORMER 439091 - TERMINAL BLOCK 107241 - WATERBOARD 105788 - AIR PROVER SWITCH 105693 - GAS CONTROL MODULE 105784 - PILOT 107239 - PROBE ASSEMBLY 105785 - RELAY ( R3, R4 ), 24V 03524 - RELAY ( R1, R2 ) 120V 22199 - STEAM RELIEF SOLENOID 105695 - FAN 105990 - TERMINAL STRIP 20478 - 3 MIN TIMER 105966 - RELAY ( R5 ) 120V 106580 - HEAT STANDBY TIMER 22218 - WATER SOLENOIDS 22221 - DRAIN VALVE 106541 - BLOWDOWN TIMER 108995 - HIGH LIMIT RESET SWITCH 106144 - IGNITION ASSY 222231 - FILL VALVE 105966 - RELAY ( R6) 120V YEL 6 BRN TAN RED TAN WHT RED RED LT BLU NO C P105974 M PROBLEM: 24CGA10 Steam cabinet won't steam with time on the timer and time/ manual switch in the timed position Steam cabinet won't steam Is the red light on? No Is there power to the steamer? No Yes See Steamer won't fill. No Is there water in the sight glass? Yes Yes See Steamer generator won't ignite Replace the on/off rocker switch Has the steam generator ignited? No Yes Repair or replace the wiring to the switch No Is there power to the Timed/Manual switch? No Yes Replace the switch No Yes Is there power from the Timed/ Manual switch? Replace the timer Yes Does the steamer have the optional door switch? No Yes Replace the door switch Is there 120 VAC accross the coil of the steam solenoid.? Yes Yes Does the steam cabinet steam when the door switch is bypassed? Does the steamer steam in manual mode? No Replace the steam solenoid No Repair or replace the wiring to the steam solenoid Connect power to steamer. Steam generator won't fill. PROBLEM: 24CGA10 Steam generator won't fill Yes Is there power to the steamer? No Supply power to the steamer. No Supply cold water to the steamer. Yes Is there 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 the wiring to the fill solenoid. No Is there 120 VAC across the coil of the fill solenoid? No Yes Is water leaving the fill solenoid? Is there debris on the HI probe in the probe assy? Yes Replace the fill solenoid Clean the probes or replace the probe assy. Yes Replace wiring to drain solenoid. 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: 24CGA10 Steam generator won't ignite Is the red light on? Steam generator won't ignite No No Connect power to the steamer Yes Yes See Steamer won't fill No Is there water in the sight glass? Replace the on/off switch Yes Clean or replace the probe assy. Is there power to the steamer? Is there 120 VAC between Heat and N terminals on the water No level board with a jumper between terminal XL and C? Is there 120 VAC between the terminals Heat and N on the water level board with the the low probe submerged? No Yes Yes Replace water level board. Replace the igniton module. Replace the Timed/Manual switch. No Is there 120 VAC to the coil of cabinet relay R1? No No Adjust or replace the air prover switch. Yes No With the Top cabinet in the No manual position, is there 120 VAC to the fan? Yes Replace the cabinet relay (R1or R2). Is there 24 VAC on ignition transformer? No Yes With the bottom cabinet in the manual position, is Yes there 120 VAC to the fan? Is there 24 VAC to the R4 coil? Yes With the high limit temporarily by passed is there 24 Yes VAC to the ignition module? Replace the fan. Replace the high limit. No Does the fan turn? Yes Is there 24 VAC to the gas valve? Yes No Replace the R4 relay. No Yes Is there 24 VAC to the R3 coil? Yes Is there 120 VAC to the cabinet relay R2 coil? No Is there 24 VAC to the PV and MV/PV terminals on the No Gas valve and spark to the igniter for 90 seconds? Replace the timed/manual switch. Replace the R3 relay Replace the ignition module Yes Is the pilot valve opening? No Replace the gas valve. No Supply gas to the steamer Yes Due to the construction of the burner box it is best to replace the ignitor, ignition cable and sensor (ground wire ) at the same time. Yes Is there gas to the steamer? PROBLEM: 24CGA10 Electronic timer displays "PAUS" and won't count down START Is steam heating the cooking cabinetabove 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: 24CGA10 Steam leaks around the door. START Is COLD water supplied 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 Replace the wiring to the condensate solenoid. No Replace the condensate solenoid. Steamer won't stop steaming Is the timed/manual switch in the timed position with no time on the timer? PROBLEM: 24CGA10 Steamer won't stop steaming with door open 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? No Is there 120 VAC to the coil of the contacter? Yes No Is there an amp draw at the element? Yes Yes Yes Replace the timer. Adjust or replace the door switch. Replace the heat standby timer. Replace the contactor Problem: 24CGA10 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 power is removed from the element steam is still made for approximately 10 seconds. This is normal. Generator overpressurizes PROBLEM: 24CGA10 Generator over-pressurizes (relief valve discharges constantly) Replace spray nozzle See Problem: Steamer Floods No Yes Is discharge from relief valve cold? No Is the condensate spray nozzle spraying a cone of cold water down the drain? Yes Is condensate solenoid operating properly? Yes No Does generator over-pressurize with door open (and optional door switch bypassed)? Yes Is gas pressure correct (Natural: 2.0" Low and 3.5" high. L.P.: 4.2" low, 10" high)? Adjust or replace the gas valve Yes No Check drain for any obstructions and correct installation. No Replace the normally open relief solenoid Replace condensate solenoid. Yes Does the generator over-pressurize only when both cabinets have been running and are then shut down? No Descale generator Yes Does generator over-pressurize when the steam supply hoses have been disconnected from the steam manifolds? Warning: Steam is hot!! No Replace the steam solenoids Problem: 24CGA10 Steamer Floods (Water is entering cabinet through the steam nozzles) Steamer Floods Replace the fill solenoid. No Is 120 VAC to the fill solenoid with water touching the top probe? Replace the water level board. Yes Replace the 3 minute timer. No Is there 120 VAC to the fill solenoid with the wire removed from terminal 1 on the 3 min. timer? Yes Yes Is there 120 VAC to the fill solenoid with a jumper placed from the HI terminal to the C terminal on the water level board? No Clean or replace the probe housing 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.