VA20
Safety advice
Please pay attention to the follow-
ing safety advice in order to avoid
danger and damage to people and
property.
Instructions:
Attention should be paid to
- valid local regulations
- the statutory provisions for pre-
vention of industrial accidents,
- the statutory provisions for envi-
ronmental protection,
- the Health and Safety at Work Act
1974
- Part P of the Building Regulations
2005
- BS7671 Requirements for electri-
cal installations and relevant safety
regulations of DIN, EN, DVGW,
TRGI, TRF and VDE.
These instructions are exclusively
addressed to authorised skilled
personnel.
- Only qualified electricians should
carry out installation and mainte-
nance work.
- Initial installation should be carried
out by named qualified personnel
Appropriate usage
The 2-port valve RESOL VA20 is
used for switching flow rates in solar
thermal and heat pump systems in
com pliance with the technical data
specified in these instructions.
Improper use excludes all liability
claims
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Inhaltsverzeichnis
Safety advice ........................................................................................... 10
Technical data ......................................................................................... 11
1. Installation ......................................................................................... 12
1.1
Mounting ....................................................................................................12
1.2
Electrical conection .................................................................................12
2. Operation .......................................................................................... 13
2.1
2.2
3. Stroke indicator ................................................................................ 14
4. Examples ........................................................................................... 15
.............................................................................................. 16
Subject to change.Errors excepted.
Declaration of conformity
The product complies with the relevant direc-
tives and is therefore labelled with the CE mark.
The Declaration of Conformity is available upon
request, please contact RESOL.
EN