Manual De Dietrich MPX 24 COMPACT Central Heating Boiler

Manual

7679433.01 (3-06/17) 8

INSTALLER Section (en)

INSTRUCTIONS PRIOR TO INSTALLATION

The following notes and instructions are addressed to tters to allow them to carry out trouble-free installation. Instructions for

lighting and using the boiler are contained in the ‘Instructions for Users’ section. Installation, servicing and running of domestic

gas-red systems must be performed by qualied technicians, in compliance with current regulations.

Additionally, bear in mind the following:

• When installing the unit in environments with temperatures lower than 0°C, take the necessary precautions to avoid the

formation of ice in the siphon and in the condensation drain.

• This boiler can be connected to any type of double- or single-pipe convector plate, radiator or thermoconvector. Design the

system sections as usual, though, bearing in mind the available ow-head at the plate, as shown in section 16.

• Do not leave any packaging (plastic bags, polystyrene, etc.) within the reach of children as they are a potential source of

danger.

• Initial lighting of the boiler must be carried out by an authorised Service Engineer, as indicated on the attached sheet.

Failure to observe the above will render the guarantee null and void.

ADDITIONAL PUMP WARNING

If an additional pump is used on the heating system, position it on the boiler return circuit. This will allow the correct operation of

the water pressure switch.

SOLAR WARNING

If the instantaneous (mixed) boiler is connected to a system with solar panels, the maximum temperature of the domestic hot water

entering the boiler must not exceed 60°C.

Do not leave any packaging (plastic bags, polystyrene, etc.) within the reach of children as they are a potential source of danger.

9. INSTALLING THE BOILER

The template outline is shown in annex "SECTION" C at the end of this manual.

After deciding the exact location of the boiler, x the template to the wall. Connect the system to the gas and water inlets present

on the lower bar of the template. Make sure the rear part of the boiler (back) is as parallel as possible to the wall (otherwise,

shim the lower part). Fit two G3/4 taps (ow and return) on the central heating circuit; these taps make it possible to carry out

important operations on the system without draining it completely. If you are either installing the boiler on an existing system or

replacing one, as well as the above, t a settling tank under the boiler on the system return line in order to collect any deposits

and scale circulating in the system after ushing. After xing the boiler to the template, connect the ue and air ducts, supplied

as accessories, as described in the following sections. Connect the siphon to a drain trap, making sure the slope is continuous.

Avoid horizontal stretches.

Do not lift the boiler exerting pressure on the plastic parts like the siphon and the ue turret.

Tighten the boiler water connections with care (maximum tightening torque 30 Nm).

Before starting up the boiler, ll the water siphon to prevent the fumes from diffusing in the room.

9.1 CONTENTS OF PACK

• Template (see gure in attachment "SECTION" C)

• Boiler support bar

• 8 mm expansion grips and pressure screws

• Condensation discharge pipe

ACCESSORIES supplied on request:

• Heating system ow/return taps, water input tap and telescopic joints

• Gas tap

9.2 BOILER DIMENSIONS AND GAS WATER CONNECTIONS

The dimensions of the boiler and the relative installation positions of the water connections are shown in the annex "SECTION"

C at the end of the manual.

A Condensate drain point D GAS inlet

B Heating ow E Cold domestic water inlet / System lling tap

C D.H.W. outlet (G1/2”) / Boiler heating ow (G3/4”) F Heating return

Rating

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