Operation:- sop for boiler
Check Points before Start-Up:SOP for Chiller Operations |
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1 |
Ensure that soft water service tanks & Fuel oil service tanks have sufficient quantities of water & fuel. |
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2 |
Ensure that the drain valve of economizer, fuel strainer drain valve and the coil blow-down valves are closed. |
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3 |
Ensure that all electrical connections are in proper condition and no shortcuts w.r.t. safety. |
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4 |
Do not wear loose clothes; always wear PPE’s (Hand gloves, Safety Shoes, Ear muffs & Helmet). | |||
![]() Start-Up: |
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1 |
Open the valves of the water supply line & fuel supply line. |
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2 |
Put ‘on’ the electric main switch. |
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3 |
Close the main steam valve & open the auxiliary steam valve to prevent water entering the steam lines initially. |
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4 |
Put the ‘fill’ switch ‘on’ to fill up the coil. |
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5 |
When water starts coming out of the auxiliary steam valve, the unit can be fired. All the ‘red’ lamps should be ‘off’ & only the white ‘control’ lamp is ‘on’. |
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6 |
Put the ‘fire’ switch ‘on’. Blower, pump & water pump start. Sparking between Burner, electrodes begin & fuel is sprayed after about
6-10 seconds. |
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7 |
Burner Green Indication Lamp comes ‘ON’, fuel spray starts & flame is established. Sparking stops when a flame is established & heating of water in coil starts. |
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8 |
In about 3-5 minutes steam starts coming out of the auxiliary valve. At a temperature of 125-130OC, open main steam valve gradually & close the auxiliary valve simultaneously. Use steam for the desired heating load by adjusting the pressure setting & controlling the
valve opening. |
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9 |
Maintain a Log Book for Operation of Boiler (F-S020-21) |
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Note: |
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1 |
The Temperature of Steam should not
exceed 185⁰ C. |
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2 |
Steam Pressure should not exceed
10.53 Kg/cm2. |
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3 |
Oil Pressure should not exceed 14 Kg/cm2. |

Stopping the Boiler: |
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1 |
Close the steam valve fully. The pressure switch will cut off
the boiler. |
2 3 |
Put the ‘fire’ switch ‘off’. |
Put the ‘fill’ switch ‘on’ & fill up the coil with water for the next operation. When the steam temperature falls below 90OC, put the ‘fill’ switch ‘off’. Close the auxiliary steam valve. |
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4 |
Put ‘off’ the electric main switch. |
5 |
Close the outlet valves of the soft water service tank & fuel
oil service tanks. |
Important Note: | |
1 |
The boiler should never be worked with hard water. |
2 |
Be alert about any unusual & excessive sound from any part
of the boiler. |
3 |
Any of the valves & joints should not be leaking. |
4 |
Check for proper flow of fuel & water. |
5 |
The flame should be steady & golden yellow in color. |
6 |
Exhaust from the chimney should be almost colorless. |
7 |
Do not remove any guards from the moving parts. |
8 |
Do not wear loose clothes. |
9 |
Keep adequate distance from moving parts. |
10 |
The boiler should start & stop smoothly without Excessive
vibrations & smoke. |
11 |
The fuel gas should not leak through the glass cum pressure release port or the soot cleaning access door. |
12 |
Diesel spillage must not be there, if it happens, immediately clean the area with rags & dispose of them in a marked container. |
13 |
Do not touch the Machine's Hot part without adequate precautions. |