Landis+Gyr ULTRAHEAT T450 Technical Description
Static heat and cooling meter t450 residential; local and district heating
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Also See for ULTRAHEAT T450:
- Operating instructions (4 pages) ,
- Installation instructions manual (9 pages) ,
- Service manual (25 pages)
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Summary of Contents for Landis+Gyr ULTRAHEAT T450
- Page 1 Static Heat and Cooling Meter T450 Residential; local and district heating ® ULTRAHEAT T450 ® ULTRACOLD T450 Technical Description 32 21 101 001 a Date: 26.02.2020 Landis+Gyr GmbH...
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Page 2: Table Of Contents
Contents 2/36 Contents General Notes ____________________________________________________________ 4 Other available documentations _____________________________________________ 4 Safety Information ________________________________________________________ 5 Technical Data ____________________________________________________________ 7 Dimensions ______________________________________________________________ 8 Installation ______________________________________________________________ 10 Changing the installation location ___________________________________________ 10 Installation recommendations ______________________________________________ 11 Examples of integration ___________________________________________________ 11 Installation instructions for the adapter set (direct immersion temperature sensor) _____ 12 Torques 12 Installation for cooling meters and combined heat/cooling meters __________________ 12... - Page 3 Contents 3/36...
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Page 4: General Notes
General Notes 4/36 General Notes Note In the following text, the term "meter" is used to refer to both the heating meter as well as the cooling meter unless otherwise stated. The meter has left the factory in a technically safe condition. Adjustments, maintenance work, replacement of parts or repairs may only be carried out by specialist staff who are aware of the associated hazards. -
Page 5: Safety Information
Safety Information 5/36 Safety Information The meters may only be used in building installations and only for the applications described. The local regulations (installation, etc.) must be observed. The operating conditions on the nameplate must be ob- served during use. Failure to comply with these regula- tions can cause dangerous situations and voids all claims arising from liability for defects as well as liability on the basis of any expressly granted guarantees. - Page 6 Safety Information 6/36 and the device must be disposed of via the channels provided for this purpose. The local and currently valid legislation must be observed. The meter contains lithium batteries. Do not dispose of the meter and batteries as household waste. Observe local regulations and laws regarding disposal.
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Page 7: Technical Data
Technical Data 7/36 Technical Data General Measuring accuracy Class 2 or 3 (EN 1434) Mechanical class M2 (2014/32/EU) Electromagnetic class E1 (2014/32/EU) Ambient humidity < 93 % rel. humidity at 25 °C, non- condensing Max. altitude 2000 m above sea level -20 …... -
Page 8: Dimensions
Dimensions 8/36 Dimensions Fig. 1: Dimensions of calculator Fig. 2: Plan view and cross-section of adapter plate... - Page 9 Dimensions 9/36 Fig. 3: Overview dimensions overall length 110 mm Fig. 4: Overview dimensions overall length 130 mm (thread) Fig. 5: Overview dimensions overall length 190 mm (thread)
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Page 10: Installation
Installation 10/36 Installation Note: For a heat meter or combined heat / cooling meter, the cold side installation location corresponds to the return the hot side installation location to the flow Note: For a cooling meter , the hot side installation location corresponds to the return and the cold side installation loca- tion to the flow... -
Page 11: Installation Recommendations
Installation 11/36 • Briefly press button 2 to display the current installation location. Depending on the installation location, is displayed. • To change the installation location, press button 1. The display changes. • Press button 2 briefly until “*” appears on the LCD. •... -
Page 12: Installation Instructions For The Adapter Set (Direct Immersion Temperature Sensor)
Installation 12/36 Fig. 8: Installation for circulation with throttle circuit, for example (flow sensor in flow direction before con- trol valve / differential pressure regulator) Installation instructions for the adapter set (direct immersion temperature sensor) An installation set is included for meters with a Ø 5.2 × 45 mm temperature sensor. -
Page 13: Protection Class
Installation 13/36 Protection class The protection class of the calculator and the volume measurement unit is in- dicated on the calculator dial plate, e. g. IP54/68. The first specification (IP54 in the example) refers to the protection class of the calculator and the second specification (IP68 in the example) to the protection class of the volume meas- uring unit. -
Page 14: Operating Elements
Operating elements 14/36 Operating elements Fig. 11: Operating elements Name Description Note Button 1 Switches to the next display value within a loop. Button 2 Switches to the next loop. Security seal Screw Optical interface Permits data communication via a computer with the nec- essary service software. -
Page 15: Lcd
Operating elements 15/36 Fig. 12: LCD ID-No. Sym- Description Hourly value Daily value Monthly value Yearly value Maximum value Minimum value Average S8–S11 Decimal places Calibrated value Place of installation, return Place of installation, flow Meter type: Heat meter or combined heat/cooling meter Meter type: Cooling meter Current flow rate Error message... -
Page 16: Loop 0 "Loop 0
Operating elements 16/36 LOOP 0 “LOOP 0” The LCD indicates the following values consecutively: Loop head Error message (here: currently no error) Current energy quantity (here: kWh; heat meter; installation location: Return flow; tar- iff on) Current volume Current value tariff register 1 (only if tariff was selected) Current value tariff register 2 (only if tariff was selected) -
Page 17: Previous Year Values
Operating elements 17/36 Previous year values The meter saves the following values on the yearly set day for 16 years: • Previous year minimum temperature hot side • Previous year minimum temperature cold side • Previous year maximum flow rate •... - Page 18 Operating elements 18/36 • Mid-month value energy • Mid-month value volume • Mid-month value tariff register 1 • Mid-month value tariff register 2 • Mid-month value tariff register 3 • Mid-month value volume pulse input 1 • Mid-month value volume pulse input 2 •...
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Page 19: Display / Priority Rating
Display / priority rating 19/36 Display / priority rating Note: The number of places after the decimal point of a value is based on the nominal flow rate and the chosen dimension. Note: The number of decimal places of a value can be adjusted in accordance with the normative requirements. -
Page 20: Power Supply Requirements
Communication 20/36 Power supply requirements years years years years Standard meter * 1xAA 2xAA 3xAA 4xAA Radio module 868 MHz (mobile radio 30 sec. trans- 2xAA 3xAA 4xAA mission interval) * The battery life of a standard meter was calculated basing on the following assumptions: •... -
Page 21: Terminals
Communication 21/36 Terminals 2-pole or 4-pole terminals are used for connection of the external cables to the modules. • Stripping length 6 mm • Connection capacity ▪ rigid or flexible, 0.14 … 1.5 mm² ▪ flexible with wire and ferrule, 0.25 … 1.5 mm² ▪... -
Page 22: M-Bus Module
Communication 22/36 Voltage drop 0.9 V at 30 mA (OB) / 0.1 V at 0.1 mA (OC) Output connection M-Bus module Note: The data scope of the readout can be parametrized via Ul- taAssist. The M-Bus module is used to communicate the meter with an M-Bus central unit for the wireless transmission of measured values. - Page 23 Communication 23/36 General notes Open Metering System Specification Vol.2 Is- Standard sue 4.1.2: 2016 EN 13757-3:2018; EN 13757-4:2019 Radio mode T1 or C1 Sending frequency with T1 868.95 MHz (min. 868,928 MHz up to max. / C1 868.972 MHz) Transmission power Min.
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Page 24: Pulse Inputs
Pulse inputs 24/36 Pulse inputs Note: The pulse inputs need to be activated via UltraAssist. Note: It is recommended to use the pulse input set T45-PULSE- IN for the connection. The meter has 2 pulse inputs enabling the determination in number of external volume pulses which can be generated, for example, by a cold water meter and / or a hot water meter. -
Page 25: Tariff Control (Optional)
Tariff control (optional) 25/36 Tariff control (optional) Note: The tariffs can only be parameterized using the service software. Note: The summation of quantity of energy and volume in the standard registers is performed independently of the tariff situa- tion. The following options are available for tariff control: Threshold value tariff (tariff T1 - T5, T9 –... -
Page 26: Surcharge Quantity Tariff By Means Of Return Temperature (Tariff T8)
Tariff control (optional) 26/36 • Temperature above “heat threshold” and temperature difference > +0.2 K → quantity of heat is acquired • Temperature below “cold threshold” and temperature difference < -0.2 K → quantity of cold is acquired Surcharge quantity tariff by means of return temperature (tariff T8) The quantity of energy is summated depending on the temperature cold side in tariff registers 1 or 2. -
Page 27: Error Messages
Error messages 27/36 Error messages The meter continuously runs a self-diagnosis and can thus recognize and dis- play various installation or meter error messages. Error Error Service guidelines code Check flow and installation direc- Wrong flow direction tion; correct if necessary if necessary in exchange with: Check installation position of Negative temperature... - Page 28 Error messages 28/36 Note: Reset the message F8 in the parameterization mode man- ually or with UltraAssist. All other error messages are automati- cally deleted after the error has been corrected.
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Page 29: Log Functions
Log functions 29/36 Log functions Note: Read-out is performed via M-Bus or the optical interface with UltraAssist. In the internal logbook, metrologically relevant events (errors, states, actions) are stored in chronological order with their time of occurrence. The events ac- quired are predefined. - Page 30 Log functions 30/36 W5 = Leakage detected E0 = Mains operation E1 = Temperature in the flow sensor above 130° C E2 = Temperature in the flow sensor below 5° C E3 = Maximum flow rate (qs) exceeded E4 = Temperature in the calculator above 55° C E5 = Temperature in the calculator below 5°...
- Page 31 Log functions 31/36 P14 = Pulse output parameterization P15 = M-Bus parameterization P16 = wM-Bus parameterization...
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Page 32: Order Codes (Type Number Key)
Order codes (type number key) 32/36 Order codes (type number key) Nominal flowrate 1.5 m³/h, length 110 mm, nominal pressure PN16, connection G ¾ B Order codes for label plate data Nominal flowrate 1.5 m³/h, length 110 mm, nominal pressure PN25, connection G ¾ B Type of meter and mounting loca- Code tion... - Page 33 Dial plate English neutral 10. Power supply Code Manufacturer’s label Code Battery for 6 years Logo Landis+Gyr Battery for 11 years Other labels on request Battery for 16 years 6. Sensor type and method of con- Code Battery for 20 years...
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Page 34: Pressure Loss, Weight And Dimension Of Package
Pressure loss, weight and dimension of package 34/36 Pressure loss, weight and dimension of package Nominal flow rate qp [m³/h] Overall length [mm] Connection G¾ G¾ Maximum flow rate q [m³/h] Minimum flow rate q [l/h] Threshold (variable) [l/h] Pressure loss at q [mbar] Kv factor at Δp 1bar [m³/h]... - Page 35 Pressure loss, weight and dimension of package 35/36 Flow rate in m³/h...
- Page 36 Pressure loss, weight and dimension of package 36/36 Landis+Gyr GmbH Humboldtstrasse 64 90459 Nuremberg Germany...
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