This document provides technical specifications and operating instructions for the Revomax RXA-04 boiler. The boiler can produce 400 kg/hr of steam at 15 kg/cm2 pressure and temperature. It has an efficiency of 88% and uses light diesel oil or furnace oil as fuel. Instructions are provided for starting up the boiler, monitoring it while running, and shutting it down safely. Key requirements outlined include using only soft feed water, maintaining proper fuel viscosity and temperature settings, and following safety precautions.

1. REVOMAX BOILERS
(LDO/FO FIRED)
MODEL:RXA-04

2. TECHNICAL SPECIFICATIONS
• Steam Output: 400 kg/hr
• Heat Output 0.251 MW
• Steam Pressure & Temp 15 kg/cm2
• Efficiency On NCV(Net Calorific Value) 88+-2%
• Fuel Consumption
LDO 24 kg/h
FO 25.4 kg/h
• Boiler Heating Surface Area 4.5 m2
• Time Required To Reach Full Load 3 to 5 min
• Electric Supply 415 V,50 Hz,3 phase
• Blower Motor(3000 RPM) 0.75 KW
• Water pump Motor(1000 RPM) 0.55 KW
• Fuel Pump Motor (3000 RPM) 0.37 KW

4. OPERATING INSTRUCTIONS
• Before Starting
 Make Sure that Boiler Feed Water is:
a) Hardness < 5 ppm
b) pH 8.5 to 9.5
c) Oxygen Nil
 Fuel Viscosity 5 to 10 CST
 Ensure that the steam temperature controller setting is not altered. The knob
pointer should be set 10 Degree Celsius above saturation Temperature of Steam.
 Ensure Drain Valve of Economizer is closed.

5. • Sequence Of Operations: STARTING
 Open the valve on Water supply Line
 Put the Electric Main Switch on . Observe White Control lamp comes On.
 Put the Fuel Heater switch on to start fuel Pre-heating. (For FO)
 Close the main steam valve and open vent valve to prevent water entering process
steam line.
 Put the knob on FILL position to fill up the coil.
 When the water starts coming out of vent and required fuel temperature is
reached unit can be fired. Put the knob on FIRE position.
 Green BURNER ON lamp comes on , fuel Spray Starts and Flame is Established.
 After 3 to 5 minutes steam is seen coming out of vent. Open the main steam valve
and close the vent valve

6. • RUNNING ATTENTION
 TEST water Hardness. BOILER SHOULD NEVER BE WORKED WITH HARD
FEED WATER.
 Observe for any abnormal sound or any Leakage.
 The flame should be steady and Golden Yellow in color. Reddish flame
Indicates that the combustion air is insufficient.
 Exhaust from the chimney almost colorless
• Sequence Of Operations: STOPPING
 Close the steam stop valve completely .the pressure switch will cut off the
Boiler
 Put the switch on OFF position
 Put off the Heater Switch
 Put off the electric main switch
 CLOSE the outlet off soft water service tank and fuel oil service tank

7. DO’S AND DON’TS
• WATER SYSTEM
 Feed only soft and suitable water to the Boiler. NEVER feed Hard Water as this will
result in scale Formation and choking up the coil.
 NEVER run the water pump with insufficient or incorrect lubricating oil.
• FUEL SYSTEM
 Never run fuel pump dry.
 Use fuel additives for Improving combustion
 NEVER set the point of the fuel Temperature controller above 130 deg Celcius
 Ensure supply of clean filtered fuel.

8. REMEMBER
BOILER IS A CRITICAL
EQUIPMENT,ANY
NEGLIGENCE CAN COST
YOU YOUR LIFE
BE SAFE ALWAYS 