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Guidelines for first 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.

filtering device

 must be provided upstream of the flow rate meter in order to protect the meter.

With a diameter of 1/2” to 1 1/2”, this strainer is already inside the flow temperature pocket.

Installation procedure

•  

Install the hydraulic components (probe pocket and flow 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 flow direction: the flow probe (red label) must be installed on the 
flow 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 qualified 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

CO

N

TECA

EASY

EASY

CO

N

TECA

EASY

EASY

CO

N

TECA

EASY

        M07 1259

07185865

        M07 1259

07185865

        M07 1259

07185865

Hydraulic installation diagrams

The flow meter must be fitted on the 

return pipe.

The hydraulic diagrams provided below show:

a)  

 Flow meter positioning 

   The flow meter 

should preferably be installed

 in a horizontal position, with the axis of the turbine vertical, 

observing 

the flow direction as indicated 

by the arrow on the body. The position of the flow meter, where possible, should result in a zero flow 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 flow/return pipes. The 

corresponding pipes are 

the pipes carrying the same flow rate

 when the flow has started.

3

Содержание CONTECA EASY ULTRA

Страница 1: ...culator unit an ultrasonic flow meter and two temperature probes The CONTECA EASY ULTRA meter is extremely simple to install and requires no special maintenance The flow is measured using the two way...

Страница 2: ...h l h l h C kWh PN Qp Qi Qs m m C K C 90 preferably horizontal class OA OC in accordance with EN1434 2 see table 1 and 2 see table 1 and 2 see table 1 and 2 lithium battery life 12 years p Code The CO...

Страница 3: ...e 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 under...

Страница 4: ...protect the volume meter By observing the instant flow rate and flow return temperature difference values significantly lower flow rate compared to the nominal value and significantly higher temperat...

Страница 5: ...duration 120 ms Vmax 24 V dc 50 mA 755882 2 3 OUT 1 Open collector pulse output for HEATING units GND 2 duration 120 ms Vmax 24 V dc 50 mA 755881 755882 4 NOT used 5 6 IN 4 fourth pulse input generic...

Страница 6: ...input blue wire white wire Enery pulse outputs codes 755881 755882 2 3 Remote heating units totaliser output kWh OC type 1 2 Remote cooling units totaliser output kWh OC type These outputs can be conn...

Страница 7: ...ption with optional code 755826 2nd DCW pulse consumption 3rd pulse consumption with optional code 755825 Flow rate Power Flow temperature Return temperature Temperature difference DHW flow rate with...

Страница 8: ...change K V volume change l V N P where N number of pulses P single pulse value per litre Operating specifications 1 In order to protect against spurious measurements or undesired metering the meterin...

Страница 9: ...ass the thread through the hole on the probe and the pocket and twist it E Wind the thread as illustrated in the figure so that once lead sealing is complete the cap cannot be unscrewed without breaki...

Страница 10: ...bob D Pass the thread through the hole on the probe and the pocket and twist it E Wind the thread as illustrated in the figure so that once lead sealing is complete the cap cannot be unscrewed without...

Страница 11: ...SY RS485 EASY CONTECA EASY RS485 EASY CONTECA EASY RS485 EASY CONTECA EASY RS485 EASY CONTECA EASY RS485 EASY CONTECA EASY 11 M Bus M Bus Master 230 V ac 755058 M Bus RS 485 slave converter Used to ad...

Страница 12: ...ied out by the user removed Maximum number of users 250 Datalogger specifications Electric supply 24 V dc 10 24 V ac 3 W 2 Ethernet outputs ETH1 PoE ETH2 Working temperature range 0 50 C Mounting 35 m...

Страница 13: ...755881 Acquisition board Terminals 2 3 Heating units 7507 Terminals 2 3 Heating units Terminals 1 2 Cooling units CALEFFI ENERGY kWh 2 6 0 V HEATING UNITS output COOLING UNITS output GND 1 2 3 4 5 6...

Страница 14: ...20030 PULSE MONITOR Pulse logger Electric supply lithium battery 6 digit display with user key Daily data saving Tamper proof seal and sensor Enables acquisition of a pulse output from the heat meter...

Страница 15: ...ues with the aim of providing the exact domestic hot water consumption figure Code 755890 Electronic 8 digit LCD totaliser equipped with cover plate for three slot recessed electric box Lithium batter...

Страница 16: ...ULTRA 7507 series CONTECA EASY ULTRA heat meters in the 7507 series conform to the requirements of directive 2014 32 EU better known as MID acronym for Measuring Instrument Directive Production proce...

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