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G.83.0170 - Release 8.1.0 CH 2014
ista International GmbH - Grugaplatz 2 - 45131 Essen
http://www.ista.com
Notes on installation location and position
▪
If several meters are installed in a unit, make sure that
the installation conditions are the same for all meters.
▪
Select the mounting location such that the connecting
lines of the flow sensor and the temperature sensor ca-
bles will not be routed close to power and high-frequen-
cy lines or electromagnetic interference sources (min.
distance: 50 cm).
▪
Always install the meter in accordance with the installa-
tion situation (standard: return flow) printed on the dial.
Symbol for return flow installation:
Symbol for
flow installation:
▪
If the ultego III smart is installed in the joint return flow of
two heating circuits, e.g. heating and hot water, the in-
stallation location must be sufficiently far, i.e. at least 10
DN from the T-piece, so that the different temperatures
can mix properly.
▪
It is recommended not to install the meter at the suction
side of a pump. A minimum distance of 10 DN should be
kept on the delivery side.
▪
The meter can be in-
stalled in any position, for
example, horizontally or
vertically. To avoid any
air buildup and opera-
tional disturbances, the
meter should not be
mounted to the upper-
most region of a line (rec-
ommendation: vertical fitting position).
Notes on installing the temperature sensor
▪
Heed national regulations which may possibly deviate
from this instruction when installing the temperature
sensors in immersion sleeves.
▪
The following applies in Germany for MID-conform de-
vices: for new installations in pipelines smaller/equal DN
25, shortsensors may only be installed directly im-
mersed!
▪
Temperature sensor: the cables may not be divided,
shortened or extended.
▪
The sensors must be installed in the same heating cir-
cuit as the flow sensor (observe blending).
▪
The ends of the temperature sensors must reach at least
up to the middle of the pipe cross-section.
▪
When being used for cold metering, the temperature
sensors should be installed into the pipe from below.
▪
Temperature sensors and screw fittings have to be
sealed to prevent manipulation.
Installation notices for the calculator
▪
Avoid direct solar radiation.
▪
For water temperatures below 10 C the calculator must
be mounted on the wall. At the same time it is necessary
to ensure that condensed water cannot run along the
connected pipes and into the calculator.
Installation
1.
Flush pipeline according to DIN/EN. Observe the
country specific regulations!
2.
Close the shut-off devices in front and behind the in-
stallation site.
3.
Remove the fitting piece.
4.
Clean sealing surfaces.
5.
Only insert a new profile sealing.
6.
Insert new seal.
7.
Note the direction of flow and compare with the arrow
on the meter.
8.
Mount meter.
9.
Tighten the threaded fittings by turning them through
120° from contact of the gasket with the union nut.
10. Install temperature sensors, depending on version,
into tees, ball valves or immersion sleeves.
a) Wall mounted ALU (optional)
1.
Turn the calculator through 45° and pull it off the flow
sensor.
NOTICE
►
*This position is not allowed in cases in
which moisture can penetrate the calculator
due to condensation (e.g. during an inter-
ruption in the summer).
►
** This position is to be used for cold meter-
ing.
**
