J OIL-E-08 2008
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14
2.16 COMMISSIONINg THE BOILER - continued
(e)
A barometric type draught stabiliser (if fitted in the flue) should be set for a draught of
- 0.01in. to - 0.02in. (- 0.025mb to - 0.050 mb) of water column pressure with the burner off.
(f)
Open all the valves in the water feed line.
(g)
Open all the valves in the feed water line.
FEED PUMP
Close the isolating valve on the discharge side of the pump. Remove the priming plug from the
pump head and slowly fill the pump with water. Replace the priming plug and tighten secuerly.
See the correct rotation of the pump on the motor fan cover. Start the pump and check the direc-
tion of rotation.
Vent the pump by means of the vent valve in the pump head. At the same time, open the discharge
isolating valve a little. Continue to vent the pump. At the same time, open the discharge isolating
valve a little more.
Close the vent valve when a steady stream of water runs out of it.
Completely open the discharge isolating valve.
The bypass valve located in the drain plug may be opened during the filling procedure, close the
bypass when the operation is stable.
DO NOT ALLOW THE PUMP TO RUN DRy.
(h) Open all the valves in the water feed line.
Switch on the feed water pump motor and fill the boiler.
The operation of the pump controls should be checked by using the boiler blowdown valve (located
at the rear of the boiler).
When the water sight level gauge is reading two thirds full, the pump will stop.
Open the boiler blowdown valve and slowly drain the boiler. When the water level falls below
the PUMP ON probe, the pump should start. If the pump does not start check the probe connec-
tions.
Close the boiler blowdown valve.
(i)
Close the boiler blowdown valve.
(j)
Start the burner as detailed in Section 3 - Operation. Allow time for the fuel pump to prime itself.
(k)
After the burner has been firing for approximately five minutes, adjust the main air control gate
to obtain a clean combustion.
(l)
Observe the flame through the peephole between the electrodes and adjust the primary air
control so that the flame cannot be seen 'backing up' the blast tube. Adjust the air main control
to obtain a full swirling flame shape brushing the wall of the furnace by observing the flame
through the eye glass in the burner plate.
(m) Check the operation of the low water safety controls as detailed in Section 3 - Operation.
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Summary of Contents for 10J
Page 42: ...J OIL E 08 2008...
Page 56: ...J OIL E 08 2008 A0 2 1 BOILER OIL 1 2 3 4 5 6 December 12 2004...
Page 76: ...J OIL E 08 2008 F1 4 1 WATER LEVEL GAUGE ASSEMBLY 6 60 350mm and 300mm Clifton December 2004...
Page 84: ...J OIL E 08 2008 H1 1 1 PUMP FEED WATER 1 December 2004...
Page 86: ......
