Vaillant ecoTEC plus VU / VUW, ecoFIT pure VU / VUW Manual

System overview

System overview, 60/100 mm diameter
	VU 246/6-5 OV (P-GB) VU 246/6-5 OVZ (P-GB) VUW 306/6-3 (P-GB)
Article number	Air/flue systems, concentric
0020219517 0010039324	Horizontal wall/roof duct, 0.7 m
0020219518 0010039333	Horizontal telescopic wall/roof duct (only available in black)
0020223472	VUW 306/6-3 (P-GB) only: Vertical roof duct (black, RAL 9005), with collar

System conditions

Maximum length of the wall/roof ducts

• The maximum lengths of the wall/roof ducts must be observed.
• You must not extend the wall/roof ducts by fitting additional components.

Location of the terminal

The location of the flue system terminal must comply with the relevant applicable international, national and/or local regulations.

• Align the terminal of the flue system in such a way that ensures a secure outward flow and distribution of the flue gases and prevents these gases from re-entering the building through openings (windows, supply air openings and balconies).
• Observe the existing regulations with regard to the clearances to windows and ventilation openings.

Disposing of condensate

Local regulations may stipulate the minimum quality of any condensate that may enter the public waste-water system. If required, a condensate neutraliser must be used.

• When disposing of the condensate into the public wastewater system, observe the local regulations.
• Only use corrosion-resistant piping material for removing condensate discharge.

Set-up

Installing horizontal wall/roof ducts

Preparing the installation

Risk of poisoning due to escaping flue gas.
If you select an unsuitable installation site for the air/flue pipe, flue gas may be allowed to enter the building.

• Observe the existing regulations with regard to the clearances to windows and ventilation openings.

Risk of poisoning due to escaping flue gas.
Condensate that collects inside the flue in certain areas can damage the flue pipework seals.

• Route the horizontal flue pipe with a downward gradient of 3° to the product; 3° corresponds to a downward gradient of approx. 56 mm per metre of pipe length.
• In doing so, note that the air/flue pipe must be centred in the wall hole.

• Determine the installation site for the air/flue pipe.
• When installing the product near a light source, point out to the end user that they must clean the terminal regularly. Otherwise, due to the insects that the light may attract, the terminal may become dirty.

Set-up example: Horizontal roof duct with dormer

Minimum dimensions for the dormer

Note
The dormer is not provided by the manufacturer and must be created on-site.

• Determine the installation site for the boiler (→ Installation instructions for the boiler).
• Ensure that all clearances required for installation and maintenance are available and that the air/flue system can be installed in accordance with these instructions.
• Secure the mounting template that is supplied with the boiler to the wall.
• Use a plumb-bob or spirit level to check whether the central line of the mounting template is vertical.

The mounting template indicates the position for horizontal installation of the air/flue pipe when connecting it to the upper side of the boiler.

Condition: Top connection, air/flue pipe to the side

1. 125 mm

If you want to install the air/flue pipe laterally, you can determine the position of the wall duct by carefully offsetting the central line of the wall duct that is marked on the mounting template

• Calculate the required gradient in accordance with the length of the flue pipework and then mark the position for the wall duct.

Determining the clearance to the external

1. Upper flue pipe at the rear
2. Upper flue pipe to the side

1. Clearance to the external wall

• Measure the clearance (A) from outside of the wall to the centre of the connector.
  • Distance A: At least 215 mm for a wall thickness of 90 mm
  • Length of the concentric pipe: At least 150 mm

Horizontal wall/roof duct 60/100 mm diameter - 0020219517

Scope of delivery

1. Collar, 100 diameter (2 pcs)
2. Horizontal wall duct
3. 40 mm clamp
4. 87° elbow
5. 30 mm clamp

Shortening the product

1. Determine the clearance to the external wall. (→ "Determining the clearance to the external wall" section)
   
2. Shorten the flue pipe and the air pipe by the same amount when they are assembled.

Note
Disassembling the flue pipe and the air pipe damages the latching lugs in the terminal.

Installing the wall duct

1. Drill a hole.
   1. Diameter: 125 mm

Note
If the wall duct can be accessed from the exterior of the building, you can drill the hole with a diameter of 110 mm and install the wall duct with the wall collar from outside.

2. Slide the air/flue pipe (1) with the flexible external collar through the wall.
3. Pull the air/flue pipe back until the external collar forms a tight seal on the external wall.
4. Secure the air/flue pipe with mortar and leave the mortar to harden.
5. Install the wall collar on the inside of the wall.

Installing the roof duct

• Insert the air/flue pipe (1) into the dormer.
  

Horizontal telescopic wall/roof duct 60/100 mm diameter - 0020219518

Note
The telescopic wall/roof duct is only available in black.

Scope of delivery

1. Collar, 100 diameter (2 pcs)
2. Horizontal telescopic wall duct
3. 40 mm clamp
4. 87° elbow
5. 30 mm clamp

Installing the wall duct

1. Drill a hole.
   • Diameter: 125 mm

Note
If the wall duct can be accessed from the exterior of the building, you can drill the hole with a diameter of 110 mm and install the wall duct with the wall collar from outside.

2. Determine the clearance to the external wall. (→ "Determining the clearance to the external wall" section)
3. Set the telescopic wall duct to the correct length.
   • Note that the TOP symbol must point upwards on both ends.

Risk of poisoning due to escaping flue gas.
Flue gas can escape if a flue pipe is damaged.

• Only use the self-tapping screw provided.

4. Secure the air pipes to each other by screwing the overlapping air pipes together using the supplied selftapping screws on the underside (1).
5. Seal the gap in the telescopic air pipe using the supplied adhesive tape (2).
6. Slide the air/flue pipe (1) with the flexible external collar through the wall.
7. Pull the air/flue pipe back until the external collar forms a tight seal on the external wall.
8. Secure the air/flue pipe with mortar and leave the mortar to harden.
9. Install the wall collar on the inside of the wall.

Installing the roof duct

• Insert the air/flue pipe (1) into the dormer.
  

Connecting the product

1. Install the product (3) – see the installation instructions for the product.
2. Connect the 87° elbow (1) to the connector for the air/flue pipe (2).
3. Connect the wall/roof duct (4) to the 87° elbow.
4. Connect all of the pipe joints with air pipe clamps. (→ "Installing the clamps" section)

Horizontal wall/roof duct 60/100 mm diameter - 0010039324

Scope of delivery

1. 777 mm
2. Collar (outside) 100 diameter
3. Collar (inside) 100 diameter
4. Horizontal wall duct
5. Locking screws
6. 40 mm clamp
7. 87° elbow
8. 30 mm clamp

Shortening the product

1. Determine the clearance to the external wall. (→ "Determining the clearance to the external wall" section)
2. Shorten the flue pipe and the air pipe by the same amount when they are assembled. – Length C ≥ 237 mm

Length	Article number
	0010039324
C	Clearance to the outside of external wall A (→ "Determining the clearance to the external wall" section) + 22 mm

Installing the wall duct

1. Drill a hole.
   
   • Diameter: 125 mm

Note
If the wall duct can be accessed from the exterior of the building, you can drill the hole with a diameter of 110 mm and install the wall duct with the collar from outside.

2. Install the collar (outside) on the wall duct.
3. Label the upper side on the air pipe.
4. Slide the air/flue pipe with the flexible collar through the wall.
5. Pull the air/flue pipe back until the collar lies fully on the external wall.
6. Align the wall duct in such a way that the label points upwards.
7. Secure the air/flue pipe with mortar and leave the mortar to harden.
8. Install the collar (internal) on the inside of the wall.
9. Connect the wall/roof duct to the product, using a sliding sleeve if required (→ "Connecting the product" section).

Installing the roof duct

• Install the roof duct in the dormer in the same way as the wall duct (→ "Installing the wall duct" section).
  

For information on preparing the installation, see (→ "Preparing the installation" section).

Horizontal telescopic wall/roof duct 60/100 mm diameter - 0010039333

Scope of delivery

1. Collar (outside) 100 diameter
2. Collar (inside) 100 diameter
3. Horizontal telescopic wall duct
4. Locking screws
5. 40 mm clamp
6. 87° elbow
7. 30 mm clamp

Installing the wall duct

1. Drill a hole.
   • Diameter: 125 mm

Note
If the wall duct can be accessed from the exterior of the building, you can drill the hole with a diameter of 110 mm and install the wall duct with the collar from outside.

2. Determine the clearance to the external wall. (→ "Determining the clearance to the external wall" Section)
3. Set the telescopic wall duct to the correct length.
   • Note that the TOP symbol must point upwards on both ends.

Risk of poisoning due to escaping flue gas.
Flue gas can escape if a flue pipe is damaged.

• Only use the self-tapping screw provided.

4. Secure the air pipes to each other by screwing the overlapping air pipes together using the supplied selftapping screws on both sides (1).
   

5. Install the collar (external) (2) on the wall duct.
6. Slide the air/flue pipe (1) with the flexible collar (external) through the wall.
7. Pull the air/flue pipe back until the collar lies fully on the external wall.
8. Align the wall duct in such a way that the label points upwards.
9. Secure the air/flue pipe with mortar and leave the mortar to harden.
10. Install the collar (internal) on the inside of the wall.
11. Connect the wall/roof duct to the product, using a sliding sleeve if required. (→ "Connecting the product" section)

Installing the roof duct

• Install the roof duct in the dormer in the same way as the wall duct (→ Section above).
  

For information on preparing the installation, see (→ "Preparing the installation" section).

Connecting the product

1. Install the product (3) – see the installation instructions for the product.
2. If required, replace the connector (4) for the air/flue pipe, see the installation instructions for the product.
3. Slide the connection elbow twisted (1) to the side by 90° into the horizontal air/flue pipe (2).
4. Twist the connection elbow by 90° downwards.
5. Slide the connection elbow into the connector for the air/flue pipe.
6. If there is sufficient space available, you can use the sliding sleeve as an alternative to connect the air/flue pipe. (→ "Installing the sliding sleeve" section)
7. Install all air pipe clamps and secure the air pipe clamp using the locking screws. (→ "Installing the clamps" section)

Installing the vertical roof duct 60/100 mm diameter - 0020223472

Installation instructions

Risk of poisoning due to escaping flue gas and risk of material damage due to the roof duct shearing off.
Snow and ice sliding down pitched roofs may break off the vertical roof duct where it exits the roof.

• In regions where heavy snow falls/extensive ice formation can be expected, install the vertical roof duct close to the ridge or install a snow guard mesh above the roof duct.

The vertical roof ducts can be shortened under the roof. However, to ensure that the fixing bracket is secured tightly, the lengths must still be sufficient.

• Shorten the flue pipe and the air pipe by the same amount.

Installing the vertical roof duct 60/100 mm diameter

Assembling the vertical roof duct
Note
In its as-delivered condition, the lower pipe of the vertical roof duct is pushed into the upper pipe.

1. Remove the clamp fitting (3) from the inside of the flue pipe (2) (step A).
2. Separate the flue pipe (2) from the terminal piece (1) by pulling them apart (step B).
3. Turn the terminal piece over and set it on the floor (step C).
4. Slide the flue pipe (2) downwards onto the terminal piece (1) until all four fastenings click into place (step D).

Scope of delivery – 0020223472 (black, with collar)

1. Vertical roof duct
2. Fixing bracket
3. 48 mm air pipe clamp
4. Collar

Installing the pitched-roof duct

1. Determine the installation site of the roof duct so that there is sufficient distance behind the product in order to connect the product to the heating installation.
2. Insert the pantile (2).
3. Insert the roof duct (1) through the pantile from above and push it down until the cover plate is seated firmly.
4. Align the roof duct vertically.
5. Secure the roof duct to the roof construction using the fixing bracket (3).
6. Connect the roof duct to the product, using a sliding sleeve if required. If you do not insert a sliding sleeve, you must always install the 40 mm clamp directly on the product.

Installing the flat-roof duct

Risk of damage to the structure of the building.
As a result of improper installation, water may penetrate the building and cause material damage.

• Observe the definitions in the directives for the planning and implementation of roofs with seals.

1. Cold roof
2. Warm roof
3. Position of the internal flue pipe seal

1. Determine the installation site for the roof duct.
2. Insert the flat roof penetration collar (2).
3. Glue the flat roof penetration collar firmly in place.
4. Insert the roof duct (1) through the flat roof penetration collar from above and push it down until seated firmly.
5. Align the roof duct vertically.
6. Put the cover plate (3) on.
7. Secure the roof duct to the roof construction using the fixing bracket (4).
8. Connect the roof duct to the product, using a partition if required. If you do not insert a partition, you must always install the 48 mm clamp directly on the product.

Installing the sliding sleeve

Note
The sliding sleeve provides for straightforward installation and disconnection of the air/flue pipe to/from the product.

1. Slide the sliding sleeve (2) onto the flue pipe (1) as far as it goes.
2. Pull the sliding sleeve (2) back far enough from the flue pipe (1) so that the inserting end of the sliding sleeve sits in the sleeve (3) of the flue pipe (4).

	60/100 mm diameter
A	100-110 mm

3. Connect the air pipes (5, 7) with the air pipe clamp (6).
4. Use a locking screw to secure both sides (→ "Installing the clamps" section).

Installing the clamps

1. Connect all of the pipe joints with air pipe clamps:
2. Slide the air pipe clamps centrally over the pipe joint for the air pipes and tighten the screws (1).
   • Air pipes distance: ≤ 5 mm

Risk of poisoning due to escaping flue gas.
Flue gas can escape if the flue pipe is damaged.

• Take care that the flue pipe is not damaged when drilling.

3. Drill holes into the air pipe through the holes in the air pipe clamp (3).

Risk of poisoning due to escaping flue gas.
Flue gases may escape as a result of pipes that are not securely connected to each other.

• Secure the clamps and air pipes using the supplied bolts.

4. Insert the locking screws (2).

Safety

Action-related warnings

Classification of action-related warnings
The action-related warnings are classified in accordance with the severity of the possible danger using the following warning symbols and signal words:

Warning symbols and signal words
	Danger! Imminent danger to life or risk of severe personal injury
	Danger! Risk of death from electric shock
	Warning. Risk of minor personal injury
	Caution. Risk of material or environmental damage

Intended use

The air/flue pipes described here are constructed using state-of-the-art technology in accordance with the recognised safety rules and regulations. Nevertheless, there is still a risk of injury or death to the system's end user or others or of damage to the products and other property in the event of improper use or use for which the products are not intended.
The air/flue pipes mentioned in these instructions must only be used in conjunction with the product types mentioned in these instructions.
Any other use that is not specified in these instructions, or use beyond that specified in this document, shall be considered improper use.

Intended use includes the following:

• observance of accompanying operating, installation and maintenance instructions for all system components
• installing and setting up the product in accordance with the product and system approval
• compliance with all inspection and maintenance conditions listed in the instructions.

General safety information

Risk caused by inadequate qualifications

The following work must only be carried out by competent persons who are sufficiently qualified to do so:

• Set-up
• Dismantling
• Installation
• Start-up
• Inspection and maintenance
• Repair
• Decommissioning

• Proceed in accordance with current technology.

Risk of poisoning due to escaping flue gas

Improperly installed flue pipework may cause flue gas to escape.

• Before starting up the product, check that the whole air/flue pipe is securely fastened and check it for tightness.

The flue pipework may become damaged by unforeseeable external influences.

• As part of the annual maintenance, inspect the flue system in terms of:
  • external faults such as brittleness and damage
  • safe pipe connections and secure fastenings

Risk of death from escaping flue gas

• Ensure that all inspection and test openings in the air/flue pipe that are within the building and can be opened are always closed for start-up and during operation.

Flue gas may escape from leaking pipes or damaged seals. Mineral-oil-based greases can damage the seals.

• When installing the flue system, use only flue pipes that are made from the same material.
• Do not install any damaged pipes.
• File off sharp burrs and chamfer the ends of the pipes before installing them, and dispose of the shavings.
• Never use mineral-oil-based grease for the installation.
• To facilitate the installation, use only water, standard commercial soft soap or, if required, the supplied lubricant.

Mortar residues, shavings, etc., in the flue gas route may prevent the flue gas from flowing outdoors as intended, and this flue gas may escape into the dwelling instead.

• After installation, remove all mortar residues, shavings, etc., from the air/flue pipe.

Requirements for the air/flue terminal

As a result of improper installation, water may penetrate the building and cause material damage.

• Observe the requirements for the air/flue terminal in the boiler's installation instructions.

Risk of material damage caused by using an unsuitable tool

• Use the correct tool.

Documents / Resources

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