Water heaters

Gas water heaters Quality Control

What?  

Quality Control test rigs GWH-QC are suitable for gas water heaters

How?

GWH-QC test benches are designed to perform quality control tests.

Where?

In the Quality Control and Audit laboratories.

Who?

Manufactures of gas water heaters

Why?

  • Control of quality control procedures complying
  • Check of field failures 
  • Quality improvement
  • Feedback for process improvement
  • Development of new test sequences
  • Full traceability of test data
  • Test data and report available for statistical elaborations
  • Market credibility

Which

GWH-QC test benches are suitable for all types of gas water heaters

Tests

  • PID control of temperatures
  • PID control of water flow
  • Thermal flow measurement
  • Acquisition and log of all pressure, temperature and flow data
  • Check of reaction of single components of the boiler (water heater) to imposed conditions
  • Automatic filling and draining of the water heater

 

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Water-gas valves End-of-Line

| What?

Microplan's water-gas valve test rigs are suitable for gas-water valves used as components of gas fired water heaters.

| How?

Microplan's water-gas valve test rigs are intended to perform a full functional test of gas-water valves.

| Where?

In the production line before the final assembly.

| Who?

  • Manufacturers of water heaters
  • Manufacturers of gas-water valves

| Why?

  • Fully automatic machine 
  • Reduction of final test time
  • Reduced faults at final tests
  • Takt time balance
  • Quality improvement
  • Full traceability of test data
  • Human operations driven and controlled by the test rig
  • Test data available for statistical elaborations
  • Market credibility

| Tests

  • Automatic positioning of the valve under test
  • Automatic closure of valve inlet, outlet and by-pass
  • Regulation:
    • PID control on imposed flow rate
    • check of the position of the needle of the valve
    • automatic repositioning of the needle if out of range through automatic screwdrivers software driven
  • Nominal water flow measurement with by-pass closed
  • Leakage test with air (low pressure)
  • Leakage test with water (high pressure)
  • Nominal water flow measurement with by-pass open
  • Valve draining (compressed air injection)
  • Statistical graphs of ongoing tests
  • Automatic marking of good and fault valves
  • Automatic displacement of the valves towards the packing belt
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Electric Water Heaters, Storage Tanks - Laboratory

| What?

R&D test rigs EWH-LAB are suitable for electric water heaters and storage tanks

| How?

EWH-LAB are intended to perform the tests included in the "ecodesign" and other standards (see list at the bottom of this page) about electric water heaters and storage tanks.

| Where?

In the R&D lab.

| Who?

  • Manufacturers electric water heaters
  • Manufacturers of storage tanks 
  • Notified bodies 

| Why?

  • Benchmarking 
  • Time to market reduction
  • Preparation for product certification
  • Quality improvement
  • Research and development of new products
  • Full automatic control of flow and temperature regulations
  • Full traceability of test data
  • Test data and report available for statistical elaborations
  • Market credibility

| Tests

  • NF/LCIE and Ecodesign Annex IV 
  • prEN50440 "Efficiency of domestic electrical storage water-heaters"
  • EN60379 "Methods for measuring the performance of electric storage water-heaters for household purposes" 
  • EN12897 "Water supply - Specification for indirectly heated unvented (closed) storage water heaters"
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Gas water heaters R&D

| What?  

Microplan's R&D test rigs WH-RD are suitable for gas water heaters.

| How?

Microplan's R&D test rigs WH-RD are intended to give the end user full flexibility to perform all the tests necessary to evaluate the performance of a water heater and/or its components.

| Where?

In the R&D laboratory.

| Who?

Manufacturers of gas water heaters.

| Why?

  • Benchmarking 
  • Time to market reduction
  • Preparation for product certification
  • Quality improvement
  • Research and development of new products
  • Full automatic control of flow and temperature regulations
  • Full traceability of test data
  • Test data and report available for statistical elaborations
  • Market credibility

| Tests

  • Full flexible tests. The synoptic panel is available for the operator to:
    • activate any component
    • log any measurement
    • graph any measure 
  • Automatic regulations. The operator can set the parameters to perform:
    • automatic PID regulations of water flow and temperature
    • automatic increasing or decreasing ramps
    • PWM control of fan
  • Test sequence editor:
    • the operator can perfom a series of operations and save them as a test sequence
    • every sequence created can be recalled for future use

| Software

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Gas Water Heaters Laboratory

| What?  

Microplan's efficiency test rigs WH-LAB are suitable for gas water heaters.

| How?

Microplan's efficiency test rigs WH-LAB are intended to perform efficiency tests of gas water heaters according to international standards.

| Where?

In the laboratory.

| Who?

  • Manufacturers of gas water heaters
  • Notified bodies

| Which?

Microplan efficiency test rigs WH-LAB are suitable for water heaters with the following nominal power:

  • up to 50 Kw
  • more than 50 Kw

| Why?

  • Product certification costs reduction
  • Time to market reduction
  • Efficiency calculation
  • Preparation for product certification
  • Quality improvement
  • Research and development of new products
  • Full automatic control of flow and temperature regulations
  • Benchmarking
  • Full traceability of test data
  • Test data and report available for statistical elaborations
  • Market credibility

| Tests

  1. Heat input
  2. Efficiency 
  3. Flue efficiency
  4. Reduced heat input
  5. Minimum heat input 
  6. Combustion 
  7. Modulation

| International Standards

  • EN 26
  • GB 6932
  • AS 4552
  • eCFR

| Software

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DHW tappings test benches

What?

Microplan's DHW-T test benches for sanitary tests are suitable for:

  • boilers
  • water heaters
  • solar collectors
  • CHP boilers

How?

Microplan's DHW-T test benches are designed to evaluate the perfomance of hot water deliveries of domestic appliances according to European Standards.

Where?

In the laboratory.

Who?

  • Manufacturers of boilers
  • Manufacturers of water heaters
  • Manufactures of solar collectors
  • Notified bodies

Why?

  • Product certification costs reduction
  • Time to market reduction
  • Preparation for product certification
  • Quality improvement
  • Research and development of new products
  • Full automatic control of flow and temperature regulations
  • Benchmarking
  • Full traceability of test data
  • Test data and report available for statistical elaborations
  • Market credibility

Tests

  • Specific rate
  • Tapping capability
  • Waiting time
  • Temperature variation according to water rate
  • Temperature fluctuation at constant water rate
  • Temperature stabilization time
  • Minimum nominal water rate
  • Temperature fluctuation between successive deliveries
  • Test for determination of daily energy consumption
  • Determination of energy consumption of the solar-supported gas-fired appliances 

European Standards

  • EN 13203-1
  • EN 13203-2
  • EN 13203-3 
  • EN 13203-4
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Gas water heaters End-of-Line

| What?

Microplan's end of line test rigs GWH-EOL are suitable for gas fired water heaters with the following supply:

  • electricity
  • battery

| How?

Microplan's end of line test rigs GWH-EOL are intended to perform a full functional test of gas fired water heaters.  

| Where?

At the end of the production line before packing.

| Who?

Manufacturers of gas fired water heaters.

| Why?

  • Test time reduction
  • Elimination of false failure
  • User friendly interface
  • Quality improvement
  • Full traceability of test data
  • Human operations driven and controlled by the test rig
  • Test data available for statistical elaborations
  • Market credibility
  • Multilanguage software

| Tests

  • Operator identification through scanner or badge
  • Water heater identification trough barcode reading and test sequence automatic loading and running
  • Water heater automatic filling and emptying
  • Electric safety tests
  • Water leakage test
  • Gas leakage at zero flow
  • Slow ignition check
  • Minimum water flow rate to switch on
  • Gas leakage test with burner on
  • Gas valve adjusting
  • Gas consumption check
  • Charge losses
  • Flame control check
  • Fume safety check
  • Fan speed measurement
  • Modulator current measurement
  • Battery supply check
  • Direct communication with water heater's PCB
  • Test status interface with production line
  • Test data saving

| Software


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