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Crown OB-2-2-27-G, Installation & Operation Manual

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Crown OB-2-2-27-G Installation & Operation Manual Download Page 10

INSTALLATION & OPERATION MANUAL 10104 REV 3 (08/22)

 PAGE

10    

OF 20

Oyster Bars, Gas Boilers

O

peration

O

peration

 I

nstructions for

 CSD-1 

Optional Feature

Initial Start-Up Procedure

1.  Open the manual gas shut-off supply valve.

2.  Close the manual blowdown valve, if so equipped.
3.  Light the pilot burner.
 

The dial on the combination gas valve has three positions (ON-OFF-PILOT) for manual gas control of main burners 

and pilot burner. Turn the dial to PILOT. Depress the dial and light the pilot burner on the centre burner of boiler. 

Maintain the dial in depressed position for about 30 seconds and release. Observe that the pilot flame stays ON. Turn 

dial to “ON”.

4.  Open cabinet door and turn “ON” the power switch. The  green pilot light will come “ON”. Water will begin to enter the 

boiler. When enough water has entered the boiler the (amber) “STAND BY” pilot light will come on.

5.  Press the “RESET” switch to begin boiler operation. The “STAND BY” pilot light will go off and the boiler will begin 

operation.

If at anytime the flame should become extinguished, a five (5) minute purging is required before relighting is attempted.

Daily Startup Procedure

1.  Close the manual blowdown valve, if so equipped. 

2.  Examine that the pilot burner flame is burning. If the pilot burner is out, a five (5) minute period of complete gas supply 

shut off is required before relighting. Follow initial start up instructions above. 

3.  Open cabinet door and turn “ON” the power switch. The green pilot light will come “ON”. Water will begin to enter the 

boiler. When enough water has entered the boiler the (amber) “STAND BY” pilot light will come on.

4.  Press the “RESET” switch to begin boiler operation. The “STAND BY” pilot light will go off and the boiler will begin 

operation. 

Daily Shutdown Procedure

1.   Turn “OFF” the power switch. Observe that the burners go off.

2.  Open the manual blowdown valve, if so equipped. If the appliance is equipped with an automatic blowdown solenoid 

valve, the boiler’s contents, water and steam, will be blown out and exhausted through the appliance drain. The cold 

water solenoid valve will be activated. 

Complete Shutdown Procedure

If the appliance is not intended to be operational for a lengthy period, then shut it down completely. 
1.   Open the manual blowdown valve, is so equipped. 

2.  Shut off all supplies of power, gas and water to the appliance. 

Summary of Contents for OB-2-2-27-G

Page 1: ...ARNING Improper installation adjustment alteration service or maintenance can cause property damage injury or death Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment Model OB 4 2 54 G CROWN FOOD SERVICE EQUIPMENT A Middleby Company 70 Oakdale Road Downsview Toronto Ontario Canada M3N 1V9 Telephone 919 762 1000 www crownsteamgroup ...

Page 2: ...ling operating or servicing this equipment Copyright 2022 by Crown All rights reserved Published in the United States of America Safety Precautions IMPORTANT NOTES FOR INSTALLATION AND OPERATION WARNING This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death CAUTION Operating tes...

Page 3: ...able of Contents Important Notes For Installation and Operation 2 Service Connections 4 Installation Instructions 5 Operation 8 CSD 1 Optional Feature 10 Periodic Maintenance 12 Oyster Cooker Functioning Mode 14 Cooker Operation 14 Cooker Preventive Maintenance 14 Cleaning 15 Adjustments 16 Troubleshooting 17 Table of Contents ...

Page 4: ...ion of this appliance due to poor water quality is not covered under warranty Reference www crownsteamgroup com for complete warranty details and instructions As continued product improvement is a policy of Crown specifications are subject to change without notice GAS CHARACTERISTICS AND CAPACITIES DIMENSIONS Model Capacities per kettle BTU US Quart Liters OB 2 2 27 G 200 000 2 x 2 2 x 2 OB 3 2 40...

Page 5: ...s with the National Fuel Gas Code ANSI Z223 1 NFPA 54 In Canada installation to be in accordance with CSA B149 1 Natural Gas and Propane Installation Code 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 pressures in excess of 1 2 psig 3 5 kPa 2 The appliance must be isolated from the gas supply p...

Page 6: ...res 3 8 tubing and water pressure of 25 50 psig A manual shut off valve must be provided convenient to the boiler this valve should be open when the boiler is in operation Drain Connection The boiler drain 2 IPS should be piped to a floor drain near the boiler There should be no solid drain connection an open gap between the boiler and the floor drain is required Gas Connection NOTICE If this equi...

Page 7: ... supply line to clean out any dust dirt or foreign matter before connecting the line to the unit Installation Codes require that a gas shut off valve be installed in the gas line prior to the steamer Make sure the pipes are clean and free of obstructions dirt and piping compound Do not connect the appliance to the electrical supply until after the gas connection has been made Electrical Connection...

Page 8: ...s the boiler tank and turns the boiler controls on You should allow 20 minutes to fill the tank and generate steam OFF shuts off the boiler controls and opens the automatic blowdown valve emptying the boiler tank and releasing water and steam to the drain This should be done at least once daily to remove sediment lime or scale Pilot Light Indicates main power is ON Boiler Pressure Gauge Should rea...

Page 9: ...peration with Electronic Ignition Open manual gas supply valve Open cabinet door and turn main power switch ON Green pilot light will come on water will begin to enter boiler and required water level will be reached in about 3 minutes Observe water gauge sight glass to verify The dial on the gas combination control valve has 2 positions ON and OFF ON Rotated counterclockwise permits gas to flow to...

Page 10: ...ging is required before relighting is attempted Daily Startup Procedure 1 Close the manual blowdown valve if so equipped 2 Examine that the pilot burner flame is burning If the pilot burner is out a five 5 minute period of complete gas supply shut off is required before relighting Follow initial start up instructions above 3 Open cabinet door and turn ON the power switch The green pilot light will...

Page 11: ...by the temperature of steam The thermostat opens the cooling solenoid valve supplying water to the drain to condense the steam Automatic Blowdown Valve If the unit has an automatic blowdown valve it is activated by the main power switch The boiler will drain should the main power switch be turned OFF Safety Lockout Conditions High Temperature Condition A high temperature safety device is installed...

Page 12: ...flow out of the drain When flushing control note water level in gauge glass allow the boiler to fill if necessary and also to come up to temperature Before flushing control note that water level in gauge glass is within operating range and the boiler pressure is at least 6 psi While the boiler is being fired open blowdown valve at bottom of control by rotating the handle counterclockwise about 1 4...

Page 13: ...r in 1 2 half gallon U S of CLR Descaling solution Or use the Optional Deliming assembly DPA 1 available from your dealer For appliances equipped with CSD 1 descaling solution must be introduced through hand hole 4 Replace 3 4 pipe plug securely 5 Open water supply to appliance allowing water to fill boiler to required level 6 Let appliance cycle allowing two hours for descaling and cleaning DO NO...

Page 14: ... cooker jacket This trap is a mechanical device that closes on high temperatures and opens when the temperature drops thus allowing the water formed from condensate to exhaust but retain steam under pressure Cooker Operation Cooker Operating Procedures 1 Fill cooker with product to desired level 2 Slowly turn the steam control valve ON to full open position 3 The water or food should boil 3 4 minu...

Page 15: ...ilt cooker and rinse thoroughly draining out detergent solution WARNING Never spray water into electric controls CAUTION Live steam and accumulated hot water in the compartment may be released when the door is opened CAUTION Disconnect the power supply during cleaning or servicing CAUTION Do not use cleaning agents that are corrosive Use of cleaning agents that contain chloride acids or salts are ...

Page 16: ...ing adjustments High Limit Pressure Switches 1 Allow pressure to build until unit shuts off This should occur at 15 psi Set the high signal to switch at 14 5 psi on the gauge and the low signal to 13 0 psi Override Pressure Switches 1 Allow pressure to increase to 13 psi Set the high signal to switch at 13 psi on the gauge and the low signal to 11 psi Operating Pressure Switches 1 Set the high sig...

Page 17: ...out turn off and try again in five minutes 8 Dirty flame sensor clean with emery cloth 9 Cracked ceramic insulator replace pilot burner ignitor sensor 10 Too much draft Burner Does Not Come On 1 Gas supply to unit is OFF 2 Manual shut off valve is OFF 3 Power supply is OFF 4 Faulty valve or ignition module 5 Pilot out 6 Pilot may require flame adjustment 7 Water level has not been reached in boile...

Page 18: ...sure switch requires adjustment lower or may be defective Water Not Being Supplied to Boiler 1 Water supply is OFF 2 Defective water fill Solenoid Valve 3 Water level control clogged or defective unable to operate fill valve 4 Check that drain valve is closed 5 Supply water pressure too low Boiler Slow to Heat Up 1 Lime build up contact service TROUBLESHOOTING ...

Page 19: ...INSTALLATION OPERATION MANUAL 10104 REV 3 08 22 PAGE 19 OF 20 Oyster Bars Gas Boilers Notes ...

Page 20: ...e however that replacement parts and occasional professional service may be necessary to extend the useful life of this appliance When service is needed contact a Crown Authorized Service Agency or your dealer To avoid confusion always refer to the model number serial number and type of your appliance CROWN FOOD SERVICE EQUIPMENT A Middleby Company 70 Oakdale Road Downsview Toronto Ontario Canada ...

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