Maddalena S.p.A., Via G.B. Maddalena 2/4, 33040 Povoletto (UD)
– Italy
Tel. +39 0432.634811, Fax +39 0432.679007, Fax 39 0432.679820,
www.maddalena.it
Article no. 1080100072
– 2013-03-20
1
1. Application and function
This compact heat meter
microCLIMA U
is designed for
measurement of the consumed heat energy in a closed
heating system.
2. Content of the Package
Heat meter, consisting of a detachable calculator,
flow sensor and two temperature sensors, all
permanently connected to each other.
Installation kit
Installation and Operating Instructions
3. General Information
The valid standards for the application of heat
meters are EN 1434, parts 1 + 6, Council Directive
on EMC 2004/22/EC, annex I and MI-004 and the
relevant national verification regulations.
The regulations for electrical installations are to be
observed.
The product meets the requirements relating to
emissions in the European Council Directive
EMC 2004/108/EC.
The measurement stability of the heat meters is only
guaranteed when the quality of the water meets the
conditions
as
specified
in
the
AGFW
Recommendation FW-510.
The identification plate of the instrument and the
seals must not be removed or damaged
– otherwise
the guarantee and the approved application of the
instrument are no longer valid!
The heat meter left the factory in conformance with
all applicable safety regulations. All maintenance
and repair work is to be carried out only by qualified
and authorized technical personnel.
The direct-mounted temperature sensor and/or the
external temperature sensor installation point may
not be altered in any way, in particular the sealing
wire must not be removed.
The instrument must be stored and transported at
temperatures above-freezing.
To protect against damage and dirt the heat meter
should only be removed from the packaging directly
before installation.
Instruments with a return-flow temperature sensor
mounted directly in the flow sensor may only be
mounted in the return flow.
All details and specifications listed on the data sheet
of the heat meter must be adhered to.
All electrical connections must be laid at a minimum
distance of 10 cm to sources of electromagnetic
interference (switches, controllers, pumps, etc.). All
instrument connections must be laid at a minimum
distance of 5 cm to other current-carrying wires.
The temperature sensor cables must not be kinked,
rolled up, lengthened or shortened.
To clean the heat meter (only if necessary) use a
slightly moist cloth.
Categorically, all temperature sensors which are not
mounted in the flow sensor must be direct-mounted.
If more than one heat meter is installed in one unit,
care must be taken to ensure that all the meters
have the same installation conditions.
Pay attention to the installation point of the heat
meter:
standard:
in
the
return
flow
pipe
optional: in the forward flow pipe (must be
specifically requested when ordering).
4. Mounting the Flow Sensor
Flush the pipes according to DIN/EN. Then close all
the shut-off valves. Open the nearest draining valve
for pressure release.
Drain the closed-off pipe section.
Loosen the coupling rings and remove the old heat
meter.
Remove all old gaskets.
Clean the sealing surfaces.
Insert new gaskets.
Position the flow sensor correctly, taking into
account the direction of flow (arrow on the side of
the flow sensor)!
Tighten the coupling rings.
Rotate the calculator into the correct reading
position.
Note:
In order to simplify mounting in narrow installation
spaces the calculator can be detached from the flow
sensor.
To detach the calculator, carefully pull the upper part of
the housing away from the flow sensor.
5. Mounting the Temperature Sensors
For pipe systems of size ≤ DN25 the MID regulations
require direct mounting of the temperature sensors for
new installations (new construction, or retrofitted heating
systems).
Note:
During installation be sure that the return flow sensor
(blue marking) is mounted in the
“colder pipe” and the
forward flow sensor (red marking) in the
“warmer pipe”.
microCLIMA U
Ultrasonic Compact Heat Meter
DE-13-MI004-PTB001
Installation and Operating Instructions
