Table of Contents

Heating and Water Meters

1. Thermal meters and water

Thermal meters and water meters are installed directly on a pipe.

A water meter measures the flow rate (m³) that circulates through the pipe.

A thermal meter measures the flow rate as well as the inlet temperature and outlet temperature of the circuit, which it then converts into energy (kWh).

The size of a meter (DN) is determined by its measuring chamber and not by its connection section.

For example, a DN20 meter has a thread on the meter of 1", which means that the fitting screwed onto it for the pipe is 3/4".

dn20.png

Meters of the same DN also have the same length.

Comparison table of DN

Size

Meter thread

Length

Flow rate

Screwed fitting thread

DN 15

3/4"

110 mm

2.5 m³/h

1/2"

DN 20

1"

130 mm

4 m³/h

3/4"

DN 25

1 1/4"

260 mm

6.3 m³/h

1"

DN 32

1 1/2"

260 mm

10 m³/h

1 1/4"

DN 40

2"

300 mm

16 m³/h

1 1/2"

DN 50

2 1/2"

300 mm

25 m³/h

2"

In order to communicate with the Climkit Gateway, all meters must be equipped with a wired MBus communication module.

Here are some examples of standard heating and water meters:

2. Thermal meters for heat or cooling

Integra Amtron S3U Meter

  • Ultrasonic (hot and cold) battery-powered (10-year lifespan)
  • No wear or other issues as with mechanical versions.
  • Mainly used for apartments.
  • Normally used in DN15 or DN20. Also available in DN25.

Models for heat (DN15 and DN20)
  • AMTRON S3U_15_1.5_110_G3/4_BM_h – 97154
  • AMTRON S3U_20_2.5_130_G1_BM_h - 97155

Models for heat and cooling (DN15 and DN20)

These meters have two indexes (kWh hot and kWh cold).

They increment respectively depending on whether the temperature difference between the two sensors is positive or negative.

  • AMTRON S3U_15_1.5_110_G3/4_BM_hc – 97174
  • AMTRON S3U_20_2.5_130_G1_BM_hc - 97175

Models for cooling (DN15 and DN20)
  • AMTRON S3U_15_1.5_110_G3/4_BM_c – 97190
  • AMTRON S3U_20_2.5_130_G1_BM_c - 97191

USEFUL LINKS :
Technical sheet: AMTRON S3U
Installation Guide: AMTRON S3U

DN25 or higher

For DN32 or higher, use the Sonic D.

The Sonic D is powered by 230V (without battery).

Generally used for measurement at boiler output, in CAD substations, and for the production of sanitary hot water.

USEFUL LINKS:
Technical sheet: Amtron Sonic D meter
Mounting Guide: Amtron Sonic D

3. Hot water meters (ECS) or cold (EF)

ECS and EF meters are the same.

Surface-mounted water meter (DN15 and DN20)

  • SAPHIR Modularis ETW 15 1.5_110_G3/4 BM – 95148
  • SAPHIR Modularis ETW 20 2.5_130_G1 BM – 95149

Coaxial water meter for flush mounting

  • SAPHIR Modularis MTW IE koax 1.5 BM – 95142

Available accessories: extension (if too far from the wall) and decorative cover

Example of a mounting system for a flush-mounted meter:

USEFUL LINKS:
Technical sheet: Saphir Modularis meter
Mounting Guide: Saphir Modularis surface-mounted
Mounting Guide: Saphir Modularis integrated coaxial

Water meter DN25 or higher

For DN25 or higher, use the PMK-aquabasic

Ideal for high flow rates such as irrigation.

Note 3 types according to mounting:

  • Horizontal
  • Vertical descending
  • Vertical ascending

Supplied with a screw fitting kit and MBus communication module.

4. MBus Converter

The MBus-RS485 converter allows the connection of MBus meters to the Climkit Gateway.

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Electric Meters

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