Viessmann AWO-M-AC 101.A06, Assembly And Servicing Instructions

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Do not spray or pour water directly on the unit.
Do not dispose of, abandon or leave within reach of children packaging materials (cardboard,
staples, plastic bags, etc.) as they may represent a hazard.
Any routine or extraordinary maintenance operation must be carried out with the machine
stopped and disconnected.
Do not place your hands or introduce screwdrivers, spanners or any other tools on moving
parts.
The machine operator and maintenance personnel must receive suitable training for the
performance of their tasks in safety.
Operators must know how to use personal protective equipment and the accident-prevention
rules of national and international laws and regulations.
4.1 WORKERS’ HEALTH AND SAFETY
The European Union has issued some directives regarding the safety and health of workers, including:
89/391/EEC, 89/686/EEC, 2009/104/EC, 86/188/EEC and 77/576/EEC and subsequent amendments which
every employer is obliged to follow and have followed. We observe therefore that:
Do not tamper with or replace parts of the unit without the specific consent of the manufacturer.
The manufacturer shall have no responsibility whatsoever in case of unauthorised operations.
Using components, consumables or spare parts that do not correspond to those recommended
by the manufacturer and/or listed in this manual may be dangerous for the operators and/or
damage the unit.
The operator’s workplace has to be kept clean, tidy and clear of objects that may hinder free
movement. Appropriate lighting of the work place shall be provided so as to allow the operator
to carry out the required operations safely. Poor or excessive lighting can cause risks.
Ensure that work places are always adequately ventilated and that the extraction systems are
working, in good condition and in compliance with the requirements of the laws in force.
The unit works with R32 refrigerant, which is included in the list of greenhouse gases (GWP 675) which are
subject to the requirements in EU regulation n. 517/2014 called “F-GAS” (mandatory in the European zone).
Among the provisions of this regulation, it sets forth that operators working on systems running with
greenhouse gases be in possession of a certification, issued or acknowledged by the competent authorities,
attesting that they have passed a test authorising them to perform this work. In particular

Up to 3kg total refrigerant in the appliance: category 2 certification.

3kg and more total refrigerant in the appliance: category 1 certification.
The gaseous form of R32 refrigerant is heavier than air and if released into the environment, most of it
tends to concentrate in poorly ventilated areas. Inhaling it can cause dizziness and sensations of suffocation
and can develop lethal gas if in contact with naked flames or hot objects (see the refrigerant’s safety data
sheet in paragraph 4.4.
Pay attention to the fact that refrigerant fluids can be odourless