Buderus Logano GE615, Инструкция по установке и обслуживанию

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4 Installation
Logano GE615 - We reserve the right to make any changes due to technical modifications. 22
4.9 Boiler block pressure test (only when supplied in loose sections)
A boiler block pressure test must be carried out (only
when supplied in loose sections). If supplied as a pre-
assembled block, the pressure test has already been
carried out in the factory.
For the further installation of a pre-assembled boiler
block, (
Æ
see section 4.11.4, page 25).
4.9.1 Preparing for pressure test
z
Close off flow and return connections (flow connection
flange with air vent valve).
z
Slowly fill the boiler block with water via the fill and
drain connection. Vent the boiler block via the boiler
flow connection with air vent.
4.9.2 Carry out a pressure test
Carry out a pressure test with a test pressure of 8.6 bar
(in accordance with the requirements of the European
Pressure Vessel Directive).
Use a pressure gauge class 1.0 to measure the pressure.
V
Drain water via fill and drain valve (
Æ
Fig. 23, [1] ,
page 21) prior to connecting the water systems or if a
hub joint is leaking.
4.9.3 Leaking hub joints
If leaking hub joints are detected during the pressure test,
proceed as follows.
z
Remove feed pipe and outer steam tube.
Fig 25 Separating the boiler block
V
Undo nuts on anchor rods and remove anchor rods.
V
Separate the boiler block at the leak location by driving
(knocking) in flat wedges or chisels between the sec-
tions at the points provided at the top and bottom
(
Æ
Fig. 25).
V
It is vital that a new nipple and packing cord are used
during reassembly.
V
Pull the boiler block together again using the boiler
compression tool.
V
Repeat the leak test.
Caution: Risk of accident
as a result of ignoring the safety regulations.
z
Observe the relevant country-specific
standards, work safety legislation and
regulations for carrying out pressure tests.
Caution: System damage
through overpressure.
z
The boiler block must not be connected to
the heating system pipework during the
pressure test.