Classic Electric Boiler Base Service Materials - Garland
Contents
1. Does the pressure in the gauge continue to rise with no voltage to contactor coil Yes No Delime the boiler PROBLEM Electric Boiler Stops Producing Steam operating pressure switch Boiler stops steaming Does the amber light in the reset switch come on Yes Delime boiler Yes A Is the temperature sensitive dot surrounded by a Does boiler have the optional Are the probes open and close as float is moved up and down Yes yellow circle 7953 Secondary Low eal ea the water board Water Cut Out white No Yes No v Will Boiler stop Is high pressure making steam id switch opening Yes with SLWCO prematurely the water board It has temporarily No reached a temperature of bypassed over 180 degrees Replace the No water board Does SLWCO nstall dela timer for SLWCO pressure switc PROBLEM Electric Boiler Overfills Replace the fill solenoid Replace 3 minute timer Boiler over fills No With the HI probe emersed in water is there 120 VAC between terminals L2 and WF on the water board With a jumper across terminals HI and C on the waterboard is there 120 VAC between L2 and WF With th2. have the optio Yes SWitch is depressed 0 With the SLWCO switch temporarily Does this boiler Secondary Low Water Cut Out bypassed does the Amber light go off with the reset switch depressed nel Yes gt Yes Replace the SLWCO switc Is there 120 VAC to the coil s of the contactor s with the operating pressure switch temporarily bypassed Replace the atching relay No Replace the contactor Replace the element No Boiler the water the Yes the operating pressure switch is making PROBLEM Electric boiler won t fill Boiler won t fill T Yes Vv Is there power to the steamer Yes Is there water to the steamer 14 Is there 120 VAC between the L1 and L2 on the water board No Yes Replace wiring to drain Replace the wiring to the intermittent blowdown timer Is there 120 VAC between L2 and WF on the water board Supply power to the steamer Supply cold water to the steamer Replace the on off rocker switch Remove No gt the wire from the HI terminal on the water board Is there 120 VAC between L2 and No Replace the water boa
3. As steam is generated and pressure builds the air is pushed out through the steamtrap e When steam goes through the steam trap and heats it to 192 degrees it closes Pressure builds in the boiler to the set point of 8 10 PSI except 36CEM16 or pressure steamers that are set at 5PSI The operating pressure switch opens and the heat circuit is de energized e When the pressure drops below the set point the heat circuit is energized and the heat process begins again 8 Water continues to fill until the high probe is grounded When the high probe is grounded the WF terminal on the water level board is de energized The fill solenoid closes until the high probe is ungrounded for 05 seconds If the water level drops below the low probe for more than 20 seconds the WF terminal is energized and the water fill circuit begins again 9 When the unit is turned off by depressing the red rocker switch 115 VAC is removed from the heat circuit 115 VAC is removed from the drain circuit and the normally open drain valve opens allowing the unit to drain 115 VAC is sent to the 3 minute timer The three minute timer will energize the fill solenoid for 3 minutes while the steamer drains El ECTRIC GENERATOR CONTROL INTERMITTENT BLOWDOWN OPTION TO LINE SIDE OF CONTACTOR PHASES 1 amp 3
4. WHITE YELLOW BLACK TERMINAL BLOCK OPTIONAL 8 SEC OFF 59 SEC ON PURGE TIMER 444 eo STEAM SWITCH AMBER WHITE HS POWER SWITCH RED GRAY BROWN Q WHITE BLACK Q WHITE BLACK 72222 22 LO x I lt gt BLU WHT FILL VALVE CLEVELAND RANGE SEQUENCE OF OPERATIONS Electric Boiler Base With Secondary Low Water Cut Off Switch Supply voltage is sent to the primary of the Control Transformer e 115 VAC is sent from the secondary of the Control Transformer to the on off rocker switch To turn the unit on depress the red on off rocker switch e 115 VAC is sent to the upper cabinets and terminal block in control box 115 VAC is sent to normally open drain valve closing it 115 VAC is sent to L1 and L2 of the water level board 115 VAC is sent to the open contacts of the low water cut off switch With the water level board energized and no water in the boiler 115 VAC is sent from the WF terminal to the fill solenoid The fill solenoid opens and the boiler fills through the drain valve The water fills to the low probe shorting it to ground 115 VAC is sent from the HTR terminal through the normally closed contacts of the operating pressure switch to coil of contactor s The rising water also raises the float on the low water cut off switch closi
5. OR TO TERMINAL BLOCK FUSEBLOCK 6 6 P N 109374 FUSES 2 2 P N 109380 HS 6 Hi PRIMARY TRANSFORMER P N 20535 208V 480V UNTS P N 20536 600 UNITS P N 107040 380 415 UNITS 1 X2 SECONDARY GRA BRN 3 MINUTE WATER VALVE INTERVAL P N 22223 SZ PIN 20478 BLU BLU 19 1 gt __ POWER SWITCH IN 898 2 POWER ON WHT WE 12 GRN BOILER als 2 GROUND 5 3 3 BLK Li BLK WATER LEVEL HI EXTENSION W OPIN 62452 2210 CONTROL 4 CIRCUIT RED LOW WATER CUTOFF PROBE ORN WATER LEVEL CONTROL M P N 23198 REF PROBE P N 16671 OPERATING CONTACTOR COILS PRESSURE AS REQUIRED SWITCH P N 03506 OR 03509 YEL P N 19947 YEL WHT A WHT HIGH LIMIT RELAY PRESSURE P N 106561 WITCH RESET P N 19947 ORN 9 3 PNK WHT 2 10 L N RESET SWITCH P N 19994 RELAY SOCKET PRP 6 P N 03525 PRP A B WHT DRAIN VALVE P N 22221 RED RED gt INTERMITTENT BLOWDOWN OPTION DRAIN VALVE WIRING RED ENG DRAIN VALVE 22221 P N 104716 l 104825 D J TWO ELECTRIC GENERATOR AS OF 9 93 WITH RELAY 106561 4 4 1 SECOND CONTACTOR AS i REQUIRED oe CONTACTOR COIL
6. LINITY less than 20 parts per million SILICA less than 13 parts per million pH FACTOR greater than 7 5 Consult a focal water treatment specialist for an on site water analysis for recommendations concerning steam generator feed water treatment if required in order to remove or reduce harmful concentrations of minerals The use of highly mineralized water will mean that more frequent servicing of the steam generator will be neces sary The fact that a water supply is potable is not proof that it will be suitable for the generator ELECTRIC 4 roau zzo Jasov ason r le aurs wa 60 IPS Cold Water Inlet 35 psi minimum 60 psi maximum e eo Tos Teo fae s PHASE For Power Supply use copper wire only DRAINAGE D CLEARANCE The Floor Drain must RIGHT 6 located outside the con 12 if adjoining wall or fines of the equipment equipment is over 30 00 9388 common drain high Do not connect other units to LEFT 0 this drain Do not use PVC pipe REAR O for drain Cleveland Range reserves right of design improvements or modifications as warranted Cleveland LLC 1333 East 179th St Cleveland Ohio U S A 44110 Ph 1 216 481 4900 Fx 1 216 481 3782 our Web Site www clevelandrange com CLEVELAND RANGE SEQUENCE OF OPERATIONS Electric Boiler Base Supply voltage is sent to the primary of the Control Trans
7. NTACTOR COILS PRESSURE AS REQUIRED SWITCH P N 03506 OR 03509 PIN 19947 YEL WHT GS WHT RELAY CONTACTOR COILS P N 106561 AS REQUIRED gt PIN 03506 OR 03509 BLK 7 4 RED WHT o fo A A WHT P Low HIGH LIMIT A WATER PRESSURE SWITCH SWITCH RESET 19995 19947 orn 9 3 PNK vw WHT oo 6 PRP RESET SWITCH P N 19994 PRP WHT DRAIN VALVE PIN 22221 RED RED INTERMITTENT BLOWDOWN OPTION DRAIN VALVE WIRING WHT 30 RED RECYCLING INTERVAL DRAIN VALVE 02 TIMER P N 22221 zA P N 104716 RED RED 104870 E TWO ELECTRIC GENERATOR STEAM SWITCH AMBER POWER SWITCH RED AS OF 9 93 WITH RELAY 106561 WHITE T AROAN EIEE AE E Q Q SECOND CONTACTOR 2 WHITE BLACK 155 REQUIRED eee eee eee mew eee eee eee eee WHITE gt ee TRANSFORMER YELLOW H4 YELLOW WATERBOARD BLACK TERMINAL BLOCK OPTIONAL 8 SEC OFF 59 SEC ON PURGE TIMER eee ee ee eee eee ee eee PROBLEM Electric Boiler won t build pressure Boiler won t build pressure Steamer won t Is the red light on in the power switch Yes See No Is there water in the sight glass fill Replace the water board No or R
8. 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 Represen
9. e wire removed from terminal 10n the minute timer is there 120 VAC to the fill solenoid Replace the Yes water board Yes Yes gt No The probe circuit is open Check continuity of the probe wire and probe PROBLEM Transformer continues to fail Transformer Fails start Leave After a 2 amp fuse in place inline fuse is all the solenoid coils Compare to chart allow for 10 Transformer ould have bee bad placed on the secondary does the fuse open
10. eplace th probe circui jumper between Is there 120 VAC between terminals L2 and on the water board with a Low and C Replace the atching rela Yes Is the Amber light on in the reset Is there power to the steamer T Yes eplace the on off rocker switch Replace the high limit pressure switch After depressing the reset switch switch vesh does the Amber light go off No Yes Is there 120 VAC between terminals L2 and HTR on the water Is there 120 VAC to the coil s of the board contactor s Yes Yes Is there 120 VAC to terminal 6 on the latching relay Does the contactor No T Yes Replace the Reset switch pull in Yes Yy Is there an amp draw at the element No Yes y Is there allot of steam coming out the drain T Yes Replace the steam trap No No to steamer Connect power Replace the latching relay switch temporarily bypassed does the Amber light go off when the reset No Yes With the High With a jumper Limit pressure from terminal 6 to 9 on the latching relay does the Amber light go out with the reset switch depressed 4
11. former e 115 VAC is sent from the secondary of the Control Transformer to the on off rocker switch To turn the unit on depress the red on off rocker switch 115 VAC is sent to the upper cabinets and terminal block in control box e 115 VAC is sent to normally open drain valve closing it e 115 VAC is sent to L1 and L2 of the water level board With the water level board energized and no water in the boiler 115 VAC is sent from the WF terminal to the fill solenoid The fill solenoid opens and the boiler fills through the drain valve The water fills to the low probe shorting it to ground 115 VAC is sent from the HTR terminal through the normally closed contacts of the highlimit pressure switch to contacts of the ice cube relay and the amber reset switch energizing the amber light When the momentary amber switch is depressed 115 VAC is sent to the coil of the ice cube relay closing it The relay latches itself through a jumper to the coil e If either the high pressure switch or the low water cut of switch opens the latch circuit opens e When the contacts close the amber light will energize and the process may begin again The relay contacts close sending 115 VAC through the normally closed contacts of the operating pressure switch to the coil of the contactor s With 115 VAC to the coil of contactor s e The contactor closes e Supply power is sent to the elements The water in the boiler is heated to steam
12. low the high probe for more than 20 seconds the WF terminal is energized and the water fill circuit begins again 9 When the unit is turned off by depressing the red rocker switch 115 VAC is removed from the heat circuit 115 VAC is removed from the drain circuit and the normally open drain valve opens allowing the unit to drain 115 VAC is sent to the 3 minute timer The three minute timer will energize the fill solenoid for 3 minutes while the steamer drains ELECTRIC GENERATOR CONTROL WIRING CALIFORNIA CODE ASME CSD 1 INTERMITTENT BLOWDOWN OPTION FUSEBLOCK P N 109374 FUSES P N 109380 Fu __ TOLINE SIDE OF CONTACTOR PHASES 1 amp OR TO TERMINAL BLOCK H4 H1 PRIMARY TRANSFORMER P N 20535 208V 480V UNTS P N 20536 600V UNITS P N 107040 380V 415V UNITS 1 2 SECONDARY 30 BRN 3 MINUTE INTERVAL WATER VALVE 02 TIMER PIN 22223 SZ PIN 20478 BLU BLU 1 gt Lg POWER SWITCH PIN 19993 POWER ON VN WHT a R 3 ao WHT WF 12 BOILER GROUND F7 3 BLK WATER LEVEL HI EXTENSION PIN 62452 L CIRCUIT RED LOW WATER CUTOFF PROBE LOW EXTENSION WATER LEVEL CONTROL HTR 23198 REF PROBE P N 16671 OPERATING CO
13. ng it e 115 VAC is sent through the normally closed contact of the high pressure switch to the amber reset switch energizing the amber light When the momentary amber switch is depressed 115 VAC is sent to the ice cube relay closing it The relay latches itself through a jumper to the coil e If either the high pressure switch the low water cut of switch opens the latch circuit opens e When the contact close the amber light will energize and the process may begin again The relay contacts close sending 115 VAC to coil of the contactor With 115 VAC to the coil of contactor s e The contactor closes e Supply voltage is sent to the elements The water in the boiler is heated to steam e As steam is generated and pressure builds the air is pushed out through the steamtrap e When steam goes through the steam trap and heats it to 192 degrees it closes Pressure builds in the boiler to the set point of 8 10 PSI except 36CEM16 or pressure steamers that are set at 5PSI The operating pressure switch opens and the heat circuit is de energized When the pressure drops below the set point the heat circuit is energized and the heat process begins again 8 Water continues to fill until the high probe is grounded When the high probe is grounded the WF terminal on the water level board is de energized The fill solenoid closes until the high probe is ungrounded for 05 seconds If the water level drops be
14. rd Yes Replace the Is there 120 VAC across the coil of the fill solenoid Yes eplace the fil solenoid Is water leaving the fill solenoid Yes Does the steamer have the optional intermittent blowdown timer Is there 120 VAC across the coil of the drain valve Yes Yes y Is water draining from the Is generator there 120 VAC between terminals 2 amp 3 the timer Yes T Yes Replace the intermittent blowdown Replace the drain valve WF Yes v Is there debris on the HI probe extension Replace the No wire to the Hi replace the probes tension If water is leaving the fi solenoid and not draining from the generator where is it going check PROBLEM Electric Boiler Over Pressurizes 15 Safety valve opens Boiler over pressurizes operating pressure switch Does operating pressure switch open at proper setting check service manual for that steamer Does the contactor continue to pull in with operating pressure switch open Replace the safety valve Does the 15 safety valve open with little or no pressure on the gauge after it has been replaced T No v
15. tatives are obligated to maintain up to date knowledge skills materials and equipment 2 Convection Steamers Cleveland Cleveland Classic Series MODEL 0 24 24 O 24 48 TWO COMPARTMENT PRESSURELESS 24 CEM 36 ELECTRIC STEAM GENERATOR ITEM NUMBER 24 36 OR 48 KW JOB NAME NUMBER 24 WIDE CABINET BASE DESIGN 2 03 52 Fre 27 75 5 00 705mm 127mm 50 ano 610mm N 155mm bio 62 00 1575 SHORT FORM SPECIFICATION 00 826 Shall be Two Compartments CLEVELAND Convection Steamer Model 24 CEM Electric Steam Generator KW volts phase 3 137mm wire Solid State Controls operate timing water level and safety functions Electric Steam Generator with Automatic Water Fill on start up and Automatic Blowdown with additional Manual Drain Valve For each cooking compartment 60 minute Mechanical Timer Manual Operation Mode and Cold Water Condenser Type 304 Stainless Steel cooking compartment os 518mm 1 61 1 61 41 4imm NOTE When ordering optional reverse door openings WATER QUALITY REQUIREMENT Control Panel door openings and cooking compartments are opposite that shown The recommended minimum water quality standards whether untreated or pre treated based upon 10 hours of use per day and a Daily Blowdown are as follows TOTAL DISSOLVED SOLIDS less than 60 parts per million TOTAL ALKA
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