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Service Guide
3
Replacing the Strainer Filter
1. Close ball valves on supply and return inlet pipes.
2. Close all inlet manifold circuits after the AB-PM, using a 5 mm Al-
len key.
3. Remove the strainer cap and replace the filter.
4
Shutting off the Flow
1. Close both ball valves to shut off all radiator circuits in the apart-
ment.
2. Use the manual shut off in the manifold to close a single radiator
circuit., using a 5 mm Allen key. Make sure to close both inlet and
outlet for the circuit.
5
Heat Meter
5.1
General
The following guidelinesmust be observed:
▪ The cables supplied with the meter must not be shortened or changed in any other way.
▪ The regulations on the use of energy meters must be observed!
▪ The meter installation is only to be performed by an authorized installer and/or electrical contractor using personnel trained in the
installation and use of electrical equipment and familiar with the Low Voltage Directive.
▪ The specified operating/ambient conditions are 5 ... 55 °C; IP54; 93 % rel. humidity.
The IZAR@SET software is used for readout/parametrization.
Danfoss Heating Solutions
HDU-SF (Horizontal Distribution Units - Single Flat)
Heat meter
SONOMETER™1100
Made in Germany
V
ΔT ΔT
GPM
-V
087G6103
Installation: high temp.
S/N: 41598383
3
qs: 5m
qp: 2.5m
qi: 0.025m
PS/PN: 16
DN20
Θq: 5...130°C
VIIGB102
3030716
/h
Θ: 1....180°C
3
/h
ΔΘ: 3...177K
3
/h
Pt 500
class 2
IP54
E1 / M1
P.-Year 2012
5
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