7
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Warning!
The specifications and settings of the appliance only comply
with the standards and laws of the country in which the
appliance is sold.
Applications outside this country can lead to very
dangerous situations!
1.2. Standards and guidelines
The installer must ensure that the entire installation complies
with the legal requirements, the regulations contained in this
document and other applicable documentation from the
manufacturer.
All legal requirements and regulations are subject to additions,
amendments or legal requirements that came into force later
apply at the time of installation.
After installation, there must no longer be any health, safety or
environmental risks in accordance with the applicable CE directives.
This also applies to other products included in the installation.
1.3. Air supply and exhaust system requirements
The air supply system shall comply with the regulations in force.
●
The ducts to and from the house: steel spiral tube,
internal diameter Ø 180 mm.
●
The ducts from and to the outside: vapour-tight insulated
steel spiral tube, internal diameter Ø 180 mm.
●
The insulation must be properly (airtight) connected to the
appliance. If air can get between the insulation and the
pipe, condensation will form.
●
In the case of horizontal ducts, the air ducts to and from the
house must always be led to the appliance on a slope.
Observe 3 mm per metre of duct length.
●
Bracket every bend on the socket, with the exception of
connection to the appliance:
- If the connecting pipe is shorter than 0.25 m before and
after the first bend, the bracket can be omitted at the first
bend.
- In any case, the first bracket should be placed at a
maximum distance of 0.5 m from the appliance.
●
Horizontal and non vertical ducts: maximum bracket spacing
1 m. In the case of tensile joints, the maximum bracket
spacing is 2 m. Spread lengths between brackets evenly.
●
Vertical ducts: maximum bracket spacing 2m. Divide lengths
between brackets evenly.
●
Bracket the last element of the connection pipe for the
conduit/shaft. If this last element is a bend, the element in
front of it can also be braced.
●
Apply the manufacturer's prescribed brackets.
●
Metal connections may be secured with screws.
●
Do not use fat, (acid-free) petroleum jelly or oil.
●
Mount stress-free.
●
Do not mix elements (components) of different materials
and/or fabrications other than those permitted by the
manufacturer.
●
Supply and return air ducts must be kept as short as possible.
●
Use as few bends as possible.
●
If possible, avoid the use of 90° bends.
●
If a 90° bend is unavoidable, do not place it within 1 metre of
the appliance.
●
Use gable and roof penetrations suitable for a ventilation
unit with heat recovery.
Summary of Contents for HRU 400
Page 1: ...Itho Daalderop HRU 400 Installation use A...
Page 2: ...Original document...
