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Temperature Regulation

​​Indirect and direct metering

Italian legislation, with its various regional and national regulations, promotes the sustainable refurbishment of existing buildings based on room temperature regulation and heat metering.

  • EU Directive 2012/27/EU of October 25, 2012 on energy efficiency: introduces the concept of individual metering, preferably direct or, if not technically possible, of an indirect type.
  • Legislative Decree No. 102 of July 18, 2014: strengthens the use of the UNI10200 Technical Standard and defines administrative sanctions in case of non-compliance with the decree.
  • Presidential Decree 74 of April 16, 2013: redefines the maximum reference values for summer and winter temperature averages in buildings to be air conditioned according to the geographic region.

By installing a heat cost allocator and metering system, each apartment in the condominium can be assigned a cost allocation system based on what is actually consumed: heat where and when you need it, and lower bills, thanks to independent management. In this way, users can switch from a condominium expense rate table to costs based on actual consumption.

It is possible to intervene on existing buildings by installing allocation systems, while newly constructed buildings are already equipped with user modules for direct heat and water metering. Metering is also the first step towards full energy efficiency because, with the amount of savings depending on the virtuous behaviours of the single user, it encourages property renovations. Radio frequency metering systems, thanks to their simplicity of installation, also facilitate system upgrading.

Benefits

Applications & Products

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Indirect metering solutions

For indirect heat metering, Honeywell offers solutions based on the structure of the condominium and on user needs. Once heat cost allocators are installed on each radiator, they send detailed information on the operating status at regular intervals: consumption, faults, tampering. Information is read either through data collection units positioned outside the apartments - normally in the stairwell (AMR system) - or through a walk-by system that allows an operator to read the heat cost allocator directly via a mobile antenna while walking by in the stairwell. The Honeywell electronic heat cost allocators installed on radiators allow you to properly allocate the consumption of each single apartment. For proper metering, Honeywell devices have 2 sensors, one for radiator temperature measurement and the other for ambient temperature.

Heat cost allocator with AMR and 2-sensor Walk-By technology

E53205 is an electronic device for the allocation of heating costs based on the heat dispersion of radiators. Values are measured by two temperature sensors (radiator and ambient). Honeywell heat cost allocator connections are compatible with most existing radiators without any adaptation.

R.F. radio frequency data collection unit for AMR Systems

The AMR system control unit is a smart device that can collect all data from heat cost allocators, heat meters and hot water meters.

Regarding electromagnetic pollution, installed equipment must comply with Directive ETS 300 220-1.
This outline demonstrates how these devices are responsible for an immensely lower volume of radiation than any cell phone.

evohome is an intelligent thermostat for zone control that allows you to have complete control of the heating system. With the combination of evohome and Honeywell digital heat cost allocators, you can transform existing central heating systems into independent heating systems, with intelligent heat management.

Direct metering solutions

Honeywell provides a full range of heat and water meters, all sharing the ability to be read remotely via wireless communication, with appropriate interfaces, using software normally used in "indirect heat metering" or bus-based wired systems. This allows you to manage buildings that have both heat cost allocators and heat and water meters, allowing you to read them fully.

EW447 multi-jet heat meters

Compact heat meters for heating and cooling with flow measurement, based on the multi-jet principle, consisting of an electronic energy meter unit, a multi-jet flow sensor and two temperature sensors. They are used to measure water heating and/or cooling energy. EW447 models: for heating systems. EW450 models: for heating, cooling or combined systems.

  • Brass body
  • For heating systems Tmax 90° C
  • Mount on return pipe
  • Pair of PT500 sensors included
  • MID certificate
  • 7-digit LCD display
EW370 Woltman flanged heat meters

Flanged heat meter for heating with flow measurement, consisting of volumetric part, with impulse output, available in diameters from DN50 to DN300, with different flow rates. The EW500 meter unit and the two temperature sensors for heating and/or cooling energy metering must be connected to it.

  • Cast iron body
  • For heating and cooling systems
  • 5-digit reading
  • Pair of separate sensors (see accessories)
  • Configurable output via EW500 metering unit
  • Pmax 16 bar
  • Mount on return pipe
  • MID certificate
EW500 metering unit

EW500 metering unit, to be used with EW370, available in two versions from 100 l/dm to DN250 and 10 l/dm only for DN300. The metering unit can be equipped with accessory cards with impulse outputs, M-Bus.

Ultrasonic heat meters

Compact static counters for hot or cold water flows equipped with electronic metering systems based on the ultrasonic detection principle and consisting of an energy meter unit, an ultrasonic flow sensor and two temperature sensors. EW7730 models: for heat system energy metering. EW7731 models: for energy metering in heating, cooling or combined systems.

  • Brass body
  • Configurable interface with EWA modules
  • Mount on return
  • Pair of sensors included
  • MID certificate

Hot and cold water

EW100 single jet meters

Mechanical water flow meters (hot cold) in ½" to ¾" residential units with different flow rates

  • Brass body
  • Pmax 16 bar
  • Configurable output via accessory: RF for AMR/Walk-By system
  • IP54 protection rating
  • Dry dial, 8-digit reading
  • MID certificate
EW105 single jet meters

Mechanical water flow meters with pulse output (hot cold) in ½" to ¾" residential units with different flow rates.

  • Brass body
  • 5-digit reading
  • Pulse output (10 l/dm)
  • Pmax 16 bar
  • Dry dial
  • MID certificate
EW110 single jet meters

Mechanical water flow meters (hot cold) in ½" to 11/2" residential units with different flow rates

  • Brass body
  • For DN15-DN20 8-digit reading; for DN25-DN40 5-digit reading and 3 dials
  • Configurable output via accessory: M-Bus/Pulse
  • Pmax 16 bar
  • Dry dial
  • Pmax 16 bar
H4000 Woltman flanged meters

Mechanical water flow meters (hot cold) for DN50 to DN250 in residential units with different flow rates

  • Cast iron body
  • 6-digit reading plus three 3 dials
  • Configurable output via capsules: M-Bus or pulse
  • Pmax 16 bar - Temperature class T50
  • MID certificate
EW171 Woltman flanged meters

Mechanical water flow meters (hot cold) for DN50 to DN200 in residential units with different flow rates

  • Painted cast iron body
  • 6-digit reading plus three 3 dials
  • Configurable output via accessory: M-Bus/Pulse
  • Pmax 16 bar
  • MID certificate