A. SRINIVASA RAO

MP BOILER-L851 (OLD)

FIRE TUBE BOILER DESIGN CAPACITY 12 TONS/HR DESIGN PRESSURE 17.5 KG/SQ.CM

MODULATION CKT

TRIP INTIATORS

STEAMDRUM LEVEL EXTRA LOW FUEL OIL PRESSURE LOW COMBUTION AIR PRESSURE LOW STEAM PRESSURE VERY HIGH FEED WATER TANK LEVEL LOW

FUELS FOR FIRING

LSHS FURNACE OIL WASTE LIQUID FUEL

CONTROLLER USEDSTEAM DRUM LEVEL CONTROLLER

STEAM PRESSURE CONTROLLER BOILER FEED WATER CONTROLLER DRUM COIL OUTLET TEMP CONTROLLER POSITIONING RELAY FOR MODULATION SEQUENCIAL CONTROLLER

SELECTOR SWITCHES USED

CONTROL ON/OFF BURNER AUTO/OFF/MAN MANUAL FIRING ON/OFF GAS ON/OFF FIRING CONTROL ON/OFF

PUSH BUUTTONS USED

MANUAL IGNITION STEAM HEATER START STEAM HEATER STOP FEED PUMP EMERGENCY START TEST / ACCEPT / RESET FOR

ANNUNCIATION

SEQUENCIAL CONTROLLER

UT-350 CONTROLLER TERMINAL DETAILS

1

2

3

4

5

6

7

8

9

10

21

22

23

24

25

26

27

28

29

30 20

19

18

17

16

15

14

13

12

11

TERMINALS – 8,9,10 FOR POWERSUPPLY

12&13 CURRENT INPUT

16&17 CURRENT OUTPUT