Manual Buderus Logano G315 (page 17 of 56) (English)

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Boiler block assembly

Logano G315 – 6 720 817 939 (2016/04) 17

7.4 Sliding the supply pipe into place

▶ Push the flat gasket (Fig. 21, [1]) over the supply pipe (Fig. 21, [4]).

▶ Push the supply pipe from the front into the top boiler hub.

▶ Close off with flange cover (Fig. 21, [2]).

Fig. 21 Installing the supply pipe

7.5 Sealing the immersion sleeve

▶ Seal sensor well R ¾ (length: 110 mm) (Fig. 22, [1]) from the top

into the R ¾ tapped hole in the supply connection (Fig. 22, [2]).

Fig. 22 Fitting the sensor well

7.6 Leak test

Perform a leak test of the boiler block only when the boiler was delivered

disassembled. Pre-assembled blocks are leak tested at the factory.

For details of assembling the remainder of the boiler if the block is

delivered pre-assembled, see  Chapter 10, page 30.

7.6.1 Carrying out leak test

The testing pressure is based on the normal operating pressure of the

heating system and should be 1.3 times that pressure, and in any case

no less than 58 psi (4 bar).

Use a pressure gauge class 1.0 to measure the pressure.

▶ Close off lower boiler hub (Fig. 23, [3]) at the front and rear. To do

this, place corresponding seal (Fig. 23, [1]) on the relevant boiler

hub and seal-in the relevant sealing plug. In this case, the sealing plug

with the R ¾ tapped hole for the fill and drain connection (Fig. 23,

[2]) is mounted on the rear of the boiler.

▶ Install the on-site fill and drain valve.

▶ Close off supply and return connections (mount flange with purger on

supply connection).

Fig. 23 Fitting the flange

▶ Slowly fill the boiler with water via the fill and drain connection. While

doing this, purge the boiler via the boiler flow connection with

purger.

The supply pipe must be fixed in such a way that the

holes on the supply pipe are positioned at the correct

angle. This ensures optimum distribution of water in the

area of the top boiler hub.

▶ Make sure that the cam [3]) on the end plate of the

supply pipe ( Fig. 21, [3]) fits in the notch in the

top boiler hub ( Fig. 21, [5]) (Thermostream

principle).

NOTICE: Risk of system damage from overpressure.

▶ Ensure that no pressure, control or safety equipment

is fitted during leak tests.

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Others manual(s) of Buderus Logano G315

Buderus Logano G315 User Manual - English - 8 pages

Buderus Logano G315 Installation Guide - French - 56 pages

Buderus Logano G315 User Manual - French - 8 pages

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Buderus Logano G315 Manual

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