24
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Boiler block assembly
6 720 648 162 (2011/08)
Fig. 25
Seal boiler hubs at the front section
1
Blank flange
2
Plug
5.2
Check for leaks
Conduct a leak test of the boiler block only when the
boiler was delivered disassembled.
5.2.1
Preparing for a leak test).
B
Close all boiler hubs (
Æ
Chapter 5.1.12, page 23).
B
Close front and back connections (fit vent to the Rp¾
connection block;
Æ
Fig. 22, page 23).
5.2.2
Leak test
Carry out the leak test with a test pressure of 84 psi
(5,8 bar) (in accordance with the requirements of the
European Pressure Vessel Directive).
B
Slowly fill the boiler block via the boiler fill & drain
valve. Vent at the highest point of the system, until
water flows out of the air vent valve.
If hub joints are leaking:
B
Drain the water through the boiler fill & drain valve.
B
Remove the water pipes.
B
Remove the distribution tube.
B
Release and remove the anchor rods.
B
Separate the leaking boiler by driving flat wedges or
chisels into the leaking part.
Fig. 26 Separate the boiler block
B
Clean the hubs before reassembly.
B
Compress the boiler block again.
B
Fit the anchor rods and feed pipe.
B
Install the water pipework.
B
Repeat the leak test.
For subsequent installation of the boiler see
(
Æ
Chapter 5.3, page 24).
5.3
Installation when the boiler is
supplied assembled
A leak test of the boiler block is carried out at the factory
when the boiler is supplied assembled.
B
Cut through the stapes.
B
Remove the pallet prior to positioning the boiler
block.
CAUTION:
System damage due to
overpressure.
B
Ensure that no pressure, control or safety
equipment is fitted.
Please note the rating plate details. Use a
pressure gauge class 1.0 for the pressure
test.
6 720 648 032-25.1T
2
1
Use new nipples and new sealing rope for
the reassembly.
WARNING:
Danger to life due to falling
material.
B
Ensure that a suitable means of
supporting the load is available.
B
Observe all locally applicable
Occupational Health & Safety regulations
regarding lifting equipment.
6 720 648 032-26.1T