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PERIODIC MAINTENANCE

 

SECTION 3:

 

STEAM-EX MODEL GCX-2 

FLOOR MOUNTED CONVECTION STEAMER

 

 

Item I: Hot Water Solenoid Valve fastened to the bottom of Generator Control Box immediately in Front of Item J feeds hot 

water to the Boiler but its functioning is entirely dependent on the Water Level Control (Item Q). 

Item J: Operating Pressure Switch fastened to the inside bottom front of the Generator Control Box is plumbed to sense 

the pressure in the Boiler and thence control the operating cycle of the Gas Combination Control Valve (Item I). This 
switch is factory set to energize the Gas Combination Control Valve and ignite the Main Burners at 6 psi but to de-energize 
the Valve and turn off Burners at 

7

-1/2 psi thus maintaining a pressure range in the Boiler between 6 psi to approximately 

8 psi (override considered). 

Item K: Hi-Limit Pressure Switch similar to and located directly behind the above switch is a protective device intended to 

shut off the Gas Combination Control Valve and Burners at approximately 14 psi and will only function if the Operating 
Pressure Switch fails. 

Item L: Power Switch fastened to the front face of the Generator Control Box when switched ON will automatically begin 

the steam generating process in the Boiler. 

Item M: Pilot Light is located directly above the Power Switch and when lit (green) indicates power is ON. 

Item N: A Thermostat mounted on the back wall of the Generator Control Box has its heat sensing capilliary bulb fastened 

to the appliance Drain. When excessive heat (i.e.. steam) comes in contact with the bulb, the Thermostat will energize the 
Cold Water Solenoid Valve (Item J). 

Item 0: The Pressure Gauge is directly above and threaded to the Water Level Control. It should read '0' during shut down 

and function in a range of approximately 6 to 7.5 psi during operation of the appliance. 

Item P: Safety Valve is a protective device set at 15 psi. Malfunction or improper setting of controls may allow the pressure 

to exceed 15 psi in the Boiler and will consequently set off this valve. 

 
 

ONCE A WEEK THIS VALVE SHOULD BE TRIPPED DURING OPERATION TO ASSURE THAT IT 
FUNCTIONS PROPERLY. 

Item Q: The Water Level Control is a mechanical switch intended to maintain proper water level in the Boiler. A Float is 

contained within the chamber of the Water Level Control and when it drops, it will trip the switch in the control and demand 
sufficient water to replenish it to the proper level. 

 

 

A MANUAL VALVE LOCATED DIRECTLY BELOW THE WATER LEVEL CONTROL CHAMBER 

MUST BE OPENED BRIEFLY AT LEAS T ONCE A WEEK TO BLOWDOWN SEDIMENT AND 
SCALANT THAT MAY BE LODGED IN THE CHAMBER. FAILURE TO DO SO MAY CAUSE 
EXCESSIVE ACCUMULATION. SEIZURE OF THE FLOAT AND EVENTUAL MALFUNCTION OF 
THE WATER LEVEL CONTROL. 

Item R: A Thermostatic Steam Trap is plumbed to the steam supply piping from the Boiler and is a mechanical device that 

closes on high temperatures and opens when the temperature drops. This Trap allows air and water formed from 
condensed steam to exhaust into the appliance Drain but will retain steam being of a higher temperature. 

 

Summary of Contents for GCX-2S

Page 1: ...equipment then the terms and conditions of the Manufacturer s Limited Warranty will be rendered void and no warranty of any kind shall apply If the equipment has been changed altered modified or repai...

Page 2: ...Schedules 13 SECTION SIX SERVICE Service Information 16 SECTION SEVEN PARTS Parts List 20 SECTION EIGHT WIRING Wiring Diagrams 33 CAUTION WATER QUALITY IS THE MAJOR FACTOR AFFECTING THE PERFORMANCE O...

Page 3: ...all not be liable for consequential or special damages of any nature that may arise in connection with such product or part Should service be required at times which normally involve overtime or premi...

Page 4: ...s shut off valve must be installed in supply piping convenient and adjacent to appliance EC Unless otherwise specified Field Wire Electrical Connection to be 120 Volts 60 Hertz single phase with groun...

Page 5: ...1222 1 1984 FURTHER NOTE THAT 1 THE APPLIANCE AND ITS INDIVIDUAL SHUT OFF VALVE MUST BE DISCONNECTED FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY PRESSURE TESTING OF THAT SYSTEM AT TEST PRESSURES IN E...

Page 6: ...both Digital Controls touch CANCEL and display windows will show 00 Touch number 2 on both Digital Controls and 02 will be displayed Touch START on both Digital Controls READY lights will go off and C...

Page 7: ...ssures not to exceed 15 psi therefore a Pressure Switch is utilized to regulate the cycling of the burners to maintain steam pressures at approximately 9 psi minimum but not to exceed 13 psi since pre...

Page 8: ...PARTS LIST SECTION 7 STEAM EX MODEL GCX 2 COOKER CONTROL COMPONENTS FIG 2 6...

Page 9: ...RKINESS IN THE WATER INDICATES INADEQUATE WATER QUALITY AND WILL CAUSE FAILURE OF CONTROLS AND THE APPLIANCE WARRANTY DOES NOT COVER MALFUNCTION DUE TO POOR WATER CONDITIONS Item D Pilot Burner should...

Page 10: ...heat sensing capilliary bulb fastened to the appliance Drain When excessive heat i e steam comes in contact with the bulb the Thermostat will energize the Cold Water Solenoid Valve Item J Item 0 The P...

Page 11: ...artments and Boiler approximately 2 pipe size Must be provided with open air gap type floor drain Item T Boiler Blowdown Valve is plumbed to the drain pipe of the Boiler and when specified as automati...

Page 12: ...PERIODIC MAINTENANCE SECTION 3 STEAM EX MODEL GCX 2 FLOOR MOUNTED CONVECTION STEAMER FIG 3 10...

Page 13: ...ODOURS Item D Door Striker provides positive latching of door Item E READY light when lit green indicates appliance is ready for the cooking cycle Item F COOKING light when lit red indicates applianc...

Page 14: ...ENING EACH DOOR c With compartment pre heated and READY tight on place pans of food into cooking compartment and shut door Refer to Cooking Schedules and press in desired cooking time on digital panel...

Page 15: ...Place perforated pan inside solid pan cover pasta with cold water Spaghetti regular vermicelli 12 15 Macaroni shells elbows 15 18 Noodles 1 2 wide 12 15 Lasagna noodles 15 18 Frozen casseroles lasagna...

Page 16: ...fresh 4 3 Pounds Scrod fillets fresh 3 5 4 Pounds Eggs Hard Cooked 15 4 Dozen Soft Cooked 9 10 4 Dozen Soft yoke for Caesar Salad 6 8 4 Dozen Chicken Breasts legs thighs 20 15 Pounds Turkey frozen Bre...

Page 17: ...ounds Cauliflower flowerettes Frozen 6 4 Pounds Fresh 7 8 5 Pounds Celery 1 diagonal cut 7 5 Pounds Corn Yellow whole kernel frozen 5 5 Pounds Cobbettes frozen 8 27 Ears 16 18 80 Ears Corn On Cob fres...

Page 18: ...er Switch on Generator Control Box is ON both COOK TIME MINUTES windows display 00 and after about 15 minutes steam generation shows pressure of 8 psi minimum on Pressure Gauge and consequently both D...

Page 19: ...first turned ON and assuming that water supply is definitly available to the appliance and after 20 minutes no water can be observed in the Water Gauge Assembly then either the Solenoid Hot Water Val...

Page 20: ...up is apparent then not only the Valve but also the Boiler and Water Level Control must be thoroughly cleansed Refer to preceding paragraph on cleaning procedure of Valve and also Removal of Scalants...

Page 21: ...anually open both the Slowdown and Water Level Control Valves for complete drainage and then close both valves If the appliance has an Automatic Blowdown Solenoid Valve turn OFF power supply to the ap...

Page 22: ...ent parts may be ordered either through a Southbend Authorized Parts Distributor or a South bend Authorized Service Agency When ordering parts please supply the Model Number Serial Number Part Number...

Page 23: ...Description Quantity 1 5 MC02 Magnetic Door Catch 1 2 8 1932 Cabinet Door 1 3 8 1946 Cabinet Assembly Galv Back 1 8 1947 Cabinet Assembly S S Back 4 8 1937 Flue Stack 1 5 8 1933 Stack Cover 1 6 8 130...

Page 24: ...Parts ListPARTS LIST SECTION 7 STEAM EX MODEL GCX 2 GENERATOR ASSEMBLY FIG 5 21...

Page 25: ...PTION QUANTITY 1 8 1322 Exhaust Drain Assembly 1 2 8 1323 Exhuast Drain Assembly 1 3 8 1324 Appliance Drain Assembly 1 4 3 TST1 Thermostatic Steam Trap 1 5 3 S567 Blowdown Solenoid Valve 1 or 3 BVEO M...

Page 26: ...PARTS LIST SECTION 7 MODEL GCX 2 GAS BOILER ASSEMBLY 23...

Page 27: ...e Assembly 1 3 8 1922 Handhole Cover Plate 1 4 8 1923 Handhole Gasket 1 5 8 1924 Yoke 1 6 2 75UO Fastening Nut 1 7 8 1920 Hood and Spud Natural Gas 5 8 1921 Hood and Spud Propane 8 8 1911 Gas Manifold...

Page 28: ...PARTS LIST SECTION 7 STEAM EX MODEL GCX 2 GENERATOR CONTROL BOX ASSEMBLY FIG 7 25...

Page 29: ...escription Quantity 1 4 S191 Power Switch 1 2 4 PL04 Pilot Light 1 3 3 PA26 Pressure Gauge 2 c w 3 RD20 Transducers 4 4 TH04 Thermostat 1 5 4 22T8 Terminal Block 1 6 3 S161 Coldwater Solenoid 1 7 3 S1...

Page 30: ...PARTS LIST SECTION 7 STEAM EX MODEL GCX 2 COOKER ASSEMBLY FIG 8 27...

Page 31: ...8 5076 Door Assembly 2 4 8 5023 Perforated Trough Channel 1 5 8 5081 Compartment Drain Screen 2 6 8 5005 Digital Control Panel 1 7 8 5080 Pan Rack 4 8 1 34S4 Stainless Steel Panel Screws 2 9 8 5102 E...

Page 32: ...SECTION 7 STEAM EX MODEL GCX 2 DOOR ASSEMBLY FIG 9 29...

Page 33: ...8 Stainless Steel Screw 2 13 8 5066 Door Handle 1 14 1 T5S6 Spring Tension Pin 1 15 1 CS78 Compression Spring 4 16 8 5065 Mounting Plate 1 17 8 5063 Gasket 1 18 8 5064 Gasket Plate 1 19 2 010R 0 Ring...

Page 34: ...PARTS LIST SECTION 7 STEAM EX MODEL GCX 2 COOKER CONTROL COMPONENTS FIG 10 31...

Page 35: ...PONENTS FROM FIG 10 Item No Part Number Description Quantity 1 8 5061 Door Switch 2 2 4 T199 Transformer 1 3 8 5003 Printed Circuit Board 2 4 3 PA36 Pressure Switch 1 5 8 5002 Printed Circuit Board 2...

Page 36: ...WIRING DIAGRAM MODEL GCX 2 33...

Page 37: ...WIRING DIAGRAM MODEL GCX 2 34...

Page 38: ...service may be necessary to extend the useful life of this unit When service is needed contact a Southbend Authorized Service Agency or your dealer To avoid confusion always refer to the model number...

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