CALEFFI CONTECA EASY ULTRA - Installation Procedure

Guidelines for rst installation
It is good practice to install shut-off valves upstream and downstream from the meter in order to facilitate installation and maintenance, if
required.
A ltering device must be provided upstream of the ow rate meter in order to protect the meter.
With a diameter of 1/2” to 1 1/2”, this strainer is already inside the ow temperature pocket.
Installation procedure
• Install the hydraulic components (probe pocket and ow meter) in accordance with the guidelines provided in paragraph “Hydraulic installation
diagrams” on this page;
• After installation, wash the pipes and carry out a pressurised test;
• Check the saturation level of the strainers and, if necessary, clean them;
• After completing installation of the hydraulic parts, install the CONTECA
®
EASY ULTRA electronic unit: follow the instructions for electrical
connection on pages 5 and 6.
• Insert the temperature probes into the corresponding pockets in line with the ow direction: the ow probe (red label) must be installed on the
ow pipe, while the return probe (blue label) should be on the return pipe.
• At the end of the installation process the main heat meter components (electronics unit, temperature probes and volume meter) should undergo
lead sealing. Lead sealing must be performed by qualied technicians in accordance with the instructions on pages 9 and 10 (“Lead
sealing procedure”).
1) Guideline diagram of the system with metering on the multiple circuit manifold.
EASY
CONTECA
EASY EASY
CONTECA
EASY EASY
CONTECA
EASY
M07 1259 07185865
M07 1259 07185865
M07 1259 07185865
Hydraulic installation diagrams
The ow meter must be tted on the return pipe.
The hydraulic diagrams provided below show:
a) Flow meter positioning
The ow meter should preferably be installed in a horizontal position, with the axis of the turbine vertical , observing the ow direction as indicated
by the arrow on the body. The position of the ow meter, where possible, should result in a zero ow rate when there is no service.
b) Probe positioning
The temperature probes (by means of the pocket or sleeve according to the DN) must be positioned on the corresponding ow/return pipes. The
corresponding pipes are the pipes carrying the same ow rate when the ow has started.
3