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Siemens Building Technologies
Basic Documentation RVD110, RVD130
CE1P2381E
HVAC Products
Contents
27.05.2004
Glossary
In this Basic Documentation, the following specific terms are used:
Term
Explanation
Heat converter
Heat exchanger that, on the primary side, is con-
nected to the district heat network and that, on the
secondary side, delivers the hot water to a com-
mon flow. Several consumers, such as zone con-
trollers, are connected to the common flow.
Heat exchanger
Heat exchanger that delivers the heat directly to
the consumers (e.g. space heating, d.h.w. heat-
ing, etc.).
Term Explanation
Charging pump Q3
(except plant type no. 6)
Pump that supplies tap water via the heat ex-
changer into the storage tank where it is made
available as d.h.w.
Charging pump Q7
(plant type no. 7)
Charging pump Q3
(plant type no. 6)
Pump that pumps water as a heat carrier. The
water transfers its heat via a coil or storage tank
to the d.h.w. and, therefore, does not get into
contact with the d.h.w.
Term Explanation
Coil type storage tank
23
83
S
3
3
Instantaneous d.h.w. heating
(via heat exchanger)
23
83
S
3
4
Stratification storage tank
23
83
S
3
5
Storage tank
Common term used for coil type and stratification
storage tanks.
Heat source,
heat generation
Pumps
D.h.w. heating
