Related Manuals for CleaverBrooks S
Summary of Contents for CleaverBrooks S
- Page 1 Models S, CR & HSB Electric Boilers Steam Operation and Maintenance Manual 750-137 11/2012...
- Page 3 CLEAVER-BROOKS Models S, CR & HSB Electric Boilers - Steam Operation and Maintenance Manual Cleaver-Brooks 2012 Please direct purchase orders for replacement manuals to your local Cleaver-Brooks authorized representative Manual Part No. 750-137 Printed in U.S.A. 11/2012...
- Page 4 It is solely the operator’s responsibility to properly operate and maintain the equipment. No amount of writ- ten instructions can replace intelligent thinking and reasoning and this manual is not intended to relieve the operating personnel of the responsibility for proper operation or the application of timely preventive mainte- nance.
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Page 5: Table Of Contents
2.4.1 — Electrical Installation Checklist 2-3 2.4.2 — Recommended Torque Settings 2-4 Pre-Start Preparation 3-1 CHAPTER 3 3.1 — Inspection 3-1 3.2 — Boiler and System Cleaning 3-2 3.3 — Boiler Water Treatment 3-3 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... - Page 6 4.4.2 — Annual Procedure 4-5 4.5 — Element Replacement Procedure 4-5 4.5.1 — Replacement of Individual Elements 4-6 Troubleshooting 5-1 CHAPTER 5 5.1 — Problems, Causes, and Actions 5-1 Parts 6-1 CHAPTER 6 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
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Page 7: General Description
Caution indicates a potentially hazardous situation which, if not avoided, could result in damage to the equipment. NOTE: ”NOTE:” indicates information that is vital to the operation of the equipment. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 8: Abbreviations
The model HSB comes equipped with a 75 wsi Incoloy element. The models S and CR come equipped with a 67 wsi Incoloy element. Some 600v models are equipped with a 78 wsi Incoloy element. - Page 9 500,000 duty cycles. 4. Heating Elements Standard heating elements are Incoloy sheathed and rated at 75 watts per square inch (model HSB), or 67 or 78 wsi (models S and CR). These elements are individually replaceable. 5. 120 Volt Control Circuit All boilers have 120 volt control circuits.
- Page 10 Pilot lights are standardly provided to indicate “power on,” “high pres- sure,” and “low water.” 11. Safety Valve The safety valve is properly sized according to the boiler’s electrical rating and per ASME and National Board. 12. Built-In Condensate/make-Up This includes a condensate return tank and feedwater pump, completely Tank and Feedpump (model CR boil- wired and piped.
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Page 11: Principles Of Operation
To proportion input power to steam demand, these modulating step controls select the number of heating element groups, or steps, in sequence, in order to maintain the desired steam pressure. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... - Page 12 General Description 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
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Page 13: Installation Instructions
2.1 — Receiving Inspection Each Model S, CR and HSB boiler is completely inspected at the factory and carefully packaged for shipment. Inspect the packing for signs of exterior damage. After placing the unit as close as possible to the point of actual installation, carefully uncrate and check all boxes and cartons against the packing slip. -
Page 14: Electrical
• The main supply lugs should be tightened (with power off) every 24 hours for the first week of operation. • After the first 30 days of operation, all electrical power connections should be tightened (with power off). 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 15: Electrical Installation Checklist
The external solenoid valves for the feedwater supply may be connected to the boiler control circuit. Refer to the boiler Wiring Diagram (WD) for details and voltage. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 16: Recommended Torque Settings
2.4.2 — Recommended Torque Settings The following table notes typical torque settings only, as recommended by Cleaver-Brooks. Specific components may differ between boilers. ALWAYS adhere to each component’s recommended torque setting for specific wire size and type (often located on component’s factory label). -
Page 17: Pre-Start Preparation
The elements may accumulate moisture during shipment or storage prior to operation. This moisture will turn to steam when the elements are turned on, rupturing the element casing. Caution Moisture in the elements may result in damage to the elements. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 18: Boiler And System Cleaning
Cleaning compounds are hazardous and personal protective equipment must be used when mixing or handling chem- icals and chemical solutions in order to avoid possible serious personal injury or death. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 19: Boiler Water Treatment
It also should be noted that water boilers will need chemical treatment for the first filling of water and additional periodic chemical treatment. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... - Page 20 Water treatment may vary from season to season or over a period of time; therefore, there should be a require- ment that the water treatment procedure be checked no less than four times a year, and possibly more fre- quently, as the local water conditions may require. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
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Page 21: Operating Instructions
The boiler now can be placed in service by slowly opening the steam outlet valve. Adequate draining and slow warming of the piping will help to avoid water hammer and excessive temperature gradients in the piping. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 22: Control Adjustment
Operating Instructions 4.2 — Control Adjustment The operating pressure and the high pressure limits have been set at the factory to comply with the customer’s specifications and normally do not require resetting. However, the demands upon your particular boiler may require some deviation from the factory settings. -
Page 23: Blowdown
Crack the bottom valve just enough to allow the slow seepage of water to enter the glass. Continue to crack the bottom valve until the water level stabilizes. Then slowly open the valve to its full posi- tion. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 24: Water Level Control Blowdown
When checking the element terminal connections, use a wrench on both nuts to avoid twisting the terminal stud and damaging the equipment. If all elements have been operating normally and each element bank draws its rated current or amperage, where 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 25: Annual Procedure
Before element replacement, lockout and disconnect the main power. Also, before element replacement, make cer- tain the boiler is cooled to an ambient temperature before draining below the element opening. Failure to heed this warning could result in serious personal injury or death. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... -
Page 26: Replacement Of Individual Elements
Check by measuring both the element extension (from flange to tip) and the distance from the tank flange face to the vessel wall. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... - Page 27 5 ft lb increments up to a maximum of 70 ft lb (60 ft lb for 208 and 240 Volt elements) until leaks are no longer detected. Rewire the element ends. Torque element stud nuts to 35 in lb. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
- Page 28 Operating Instructions 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
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Page 29: Troubleshooting
Allow pressure/temperature to fall • Pressure/temperature has below setpoint less control differ- exceeded setpoint on manual ential. Depress reset button. reset limit control. Raise setting if necessary, but not above design limit. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... - Page 30 • • Contactors noisy (chatter). Element(s) open. Replace faulty element(s). • • Contactors damp/dirty. Blowout contactors with com- pressed air. Remove contactor, disassemble and clean, and replace contactor. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
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Page 31: Parts
• the name and description of the required part • the quantity required • method of shipment • date the part(s) is needed by Repair or replacement parts should be ordered from your authorized Cleaver-Brooks representative. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual... - Page 32 Fuse Block, Front-Mounted, Class T, 3 Pole, 60A, 600V 832-01568-000 Fuse Cartridge, Class T, 30A, 600V 832-01371-000 Fuse Cartridge, Class T, 50A, 600V 832-01376-000 Fuse Cartridge, Class T, 60A, 600V 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
- Page 33 17-18 Steps (Master and Slave) 833-03553-000 and 833-03555-000 19-20 Steps (Master and Slave) 833-03553-000 and 833-03556-000 21-22 Steps (Master and Slave) 833-03553-000 and 833-03557-000 23-24 Steps (Master and Slave) 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
- Page 34 Alarm Bell, 4" 817-00468-000 Alarm Bell, 6" 817-03096-000 Alarm Horn, 4", NEMA 1 836-01461-000 Panel High-Temperature Thermostat Switch Consult factory for special/custom parts or for parts not shown on this list. 750-137 (revised 2012) Model S, CR & HSB Electric Boiler Manual...
- Page 36 Web Address: http://www.cleaverbrooks.com...
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