UH50 Ultrasound Heatmeter
Configuration Instructions
UH 106-101c
Page 2 / 13
Overall length 190 mm (thread)
Overall length 190 mm (flange)
Large heat meters with threaded joint
Order no.
qp m³/h
PN bar
a
b
c
UH50x 45
3.5
16
260
51
G 1¼ B
UH50x 47
3.5
25
260
51
G 1¼ B
UH50x 50
6
16
260
51
G 1¼ B
UH50x 60
10
16
300
48
G 2 B
Large heat meters with flange joint
Order no.
qp
m³/h
PN
bar
DN a b Øc Ød Øe
No. of
holes
f g
UH50x
46 3.5 25 25 260 51 115 85 14 4 68 18
UH50x 52
6
25 25 260 51 115 85 14
4
68 18
UH50x
61 10 25 40 300 48 150 110 18 4 88 18
UH50x
65 15 25 50 270 46 165 125 18 4 102 20
UH50x
70 25 25 65 300 52 185 145 18 8 122 22
UH50x
74 40 25 80 300 56 200 160 18 8 138 24
UH50x
82 60 16 100 360 68 235 180 18 8 158 24
UH50x
83 60 25 100 360 68 235 190 22 8 158 24
Installation
Based on the dimension drawings, choose a
mounting location with sufficient clearance. Mount
the volume measuring unit between two shut-off
valves in accordance with the arrow on the volume
measuring unit for the direction of flow.
No inlet or outlet sections are necessary. However,
if the heat meter is installed in the shared return of
two heating systems, e.g. heating and hot water, the
mounting location must be a sufficient distance from
the T element that forms the junction (
min. 10
×
DN
)
to allow the different water temperatures to mix well.
The sensor can be mounted in ball valves or in
pockets. The sensors must be inserted at least up to
the center of the pipe cross-section.
Cavitation must be avoided over the entire
measuring range by overpressure, i.e. at least 1 bar
at q
p
and approx. 3 bar at q
s
(at 80°C).
If the
water temperature is below 10°C or above
90°C
, a split mounting is necessary. In this case the
electronic unit is to be mounted separately from the
volume measuring unit.
A heat meter with a
removable control cable
may
be separated during the installation. When
installation is done be sure that only paired parts
(volume part, calculator) are connected together.
Ball
valve
Example of mounting with a ball valve
(recommended up to DN25)
Welded
sleeve
with
Example of mounting with pockets
(recommended above DN25)
For use as a cold meter:
-
Only mount
in the return
-
Choose the split version because of water
condensation
alternative
mounting
option