Armstrong The Brain DRV40 Manual
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Armstrong The Brain DRV40 Manual

Digital recirculation valve
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The installation and service must be performed by a qualified installer.
For further information, please call our technical department at +32 4240 9090.
Armstrong International
Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium
armstronginternational.com/brain
The Brain
DRV40
Digital Recirculation Valve
®
1
Keep this manual with installation
for future reference.

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Summary of Contents for Armstrong The Brain DRV40

  • Page 1 The installation and service must be performed by a qualified installer. For further information, please call our technical department at +32 4240 9090. Armstrong International Keep this manual with installation Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium for future reference.

  • Page 2: Table Of Contents

    Disinfection Step by Step - 2 ...... 37 Options ............. 38 DRV40 Display Alerts .......... 39 DRV40 Error Messages ........39 Connectivity ............40 System Performance ........... 41 Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 3: Introduction

    Introduction The Brain DRV40 is a registered trademark of Armstrong Hot Water Group, a division of Armstrong International. ® DRV40 features Rada Technology, Rada is a registered trademark of Kohler Mira Limited of Cheltenham, England. The DRV40 is a digital recirculating valve for use as part of a warm water recirculation system within a commercial installation.

  • Page 4: General Advisory

    Water must have levels of chloramine / chlorine lower than or equal to 4mg/l (ppm) for continual usage. Data Storage Armstrong International shall not accept liability in contract, tort (including negligence or otherwise) for any loss of profits, business or anticipated savings, or loss or corruption of data, or any indirect or consequential loss arising out of the customer's use of DRV40.

  • Page 5: Single Drv40 Pack Contents

    Electronics Module). *2 x CR - P2 6V Batteries fitted as supplied. USB Driver and The Brain® DRV Programming Software are available to download from website, www.armstronginternational.com/brain Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 6: Drv40 Dimensions

    DRV40 Dimensions 172 mm 55 mm AF Hex 144 mm 1-1/2 BSP Internal 268 mm power cable length Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 7 67 mm 240 mm 50 mm 140 mm minimum recommended clearance Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 8: Specifications

    The Brain® DRV40 conforms to the CE marking requirements. 2004/108/EC EMC Directive 2006/95/EC Low Voltage Directive 2011/65/EU RoHS Directive EN 61326-1 EN 61000-3-2 EN 61000-3-3 Armstrong International EN 61010-1 Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain EN 50581...

  • Page 9: Default Settings

    In order to enter P.O.'s and guarantee delivery dates, a technically accurate and complete IDF is required. The review and acceptance of the information on the IDF by Armstrong: 1. Approves the order for processing which triggers an e-mail confirmation 2.

  • Page 10: Installation

    150 mm 50 mm 50 mm The Brain DRV40 MUST ONLY ® be installed in this orientation. These clearance dimensions are recommended for maintenance purposes. 200 mm Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 11: Installation Requirements

    Do not use oil-based, non-setting joint compounds. To eliminate pipe debris it is essential that supply pipes are thoroughly flushed before connection to the DRV40. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 12: Piping Diagrams

    Thermometer Isolation Valve Swing Check Valve* Mixed Flow *Orientated for piping schematic detail only. Must be installed in horizontal plane. Outlets Items are installer supplied Outlets Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 13 Thermometer Isolation Valve Swing Check Valve* Mixed Flow *Orientated for piping schematic detail only. Must be installed in horizontal plane. Outlets Items are installer supplied Outlets Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 14 Isolation Valve In-Line Check Valve Swing Check Valve* Outlets *Orientated for piping schematic detail only. Must be installed in horizontal plane. Items are installer Outlets supplied Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 15 Mixed Flow In-Line Check Valve Swing Check Valve* *Orientated for piping schematic detail only. Outlets Must be installed in horizontal plane. Items are installer Outlets supplied Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 16: Installation Drv40

    BrainScan® or an error relay. If these are required but have not been prefitted, contact Armstrong for further advice. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium...
  • Page 17 DRV40 and identified to its purpose. Power Cable Commission the DRV40 and recirculation system using the following instructions... Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 18: Commissioning

    Make sure the hot and cold inlet supplies are at their designated pressures and temperatures. Close all the mixed water outlets and turn on the circulating pump. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 19 Installation Detail Form (IDF). Rada DRV40 Temp. 48˚C Setpoint 49˚C Temp. 48˚C Current Outlet Temperature Setpoint 49˚C Current Setpoint Display as seen during normal operating mode Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 20: Operation

    Run the DRV Programming Software by double clicking the icon on the desktop or search for and run the file Brain DRV Programming Software.exe Electronics Module Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 21: Control Software

    1. A Microsoft Windows based Laptop / PC Computer with The Brain® DRV Programming Software and a USB Cable. 2. A Web Browser via the integral serial port and BrainScan® supplied by Armstrong.* 3. A Building Automation System (BAS). * This option is detailed in a separate Installation, Operation and Maintenance (IOM) Guide for BrainScan®.

  • Page 22: Com Port

    Locate the DRV40 by selecting the correct COM Port. The COM Port can be confirmed using the Device Manager utility within the Microsoft Windows OS. Make sure the USB Driver has been installed. Note! Example of Microsoft Windows XP Device Manager Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 23 Valve Control - Alters the DRV40’s state ON / OFF. This is required when making specific adjustments to the DRV40’s settings (detailed further in these instructions).. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 24: Drv Information

    These data fields are read only and can only be changed by updating the DRV40 internal software (only to be performed by a qualified service engineer). Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 25: Temperatures

    Change the Adjusted Setpoint back to the default value by clicking Reset to Default. The Adjusted Setpoint value is displayed on the DRV40 as Setpoint. Temp 42˚C Setpoint 43˚C Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 26: Setpoints

    Click the preferred Valve Units (°F or °C). Switch Valve Control to OFF. Click Set to transfer the value to the DRV40. Switch Valve Control back ON. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 27 Switch Valve Control to OFF. Click Set to transfer the values to the DRV40. Click Refresh to force display and confirm the updated values. Switch Valve Control back ON. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 28: Setpoints - Explained

    Max. (maximum) value or less than the Min. (minimum) value. Example 1 Temp 42˚C Setpoint 43˚C normal operation Temp 42˚C Setpoint 39˚C reset after power failure (to change back to 43°C use Adjusted Setpoint) Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 29: Alerts - Explained

    DRV40 will also issue an alert if the preset Error Temp value located under the Setpoints tab is exceeded (factory default is 10 °C above the setpoint specified to Armstrong International by the customer when placing the order). In the event of an Error Temp, the display on the DRV40 will read Error Temp, the aforementioned relay will be activated and the DRV40 will assume a position where no hot water can enter the DRV through the hot water inlet.
  • Page 30 Adjusted Setpoint value does not need to be the same as the Default value. Both Adjusted Setpoint Note! and Default can be set within the Max and Min range only. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 31: Preset Display Alerts

    Preset Display Alerts The DRV40 is supplied preprogrammed to the customers requirements specified on the Installation Detail Form (IDF). In addition, Armstrong has preset two DRV40 display alerts: preset: 2°C Above Setpoint DRV40 will display Temp High Level 1 - Alert preset: 2°C Below Setpoint DRV40 will display Temp Low...

  • Page 32: Disinfection

    Failure to complete a sufficient cool down of the blend circuit may result in a Temp High alert or an Error Temp shut down to full cold (see Alerts on pages 29-31). Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium...
  • Page 33 The Disinfection Timeout can be set up to a maximum of 1800 minutes (30 hours). • Max. ALERT Above Setpoint Setpoint Setpoint Default Below Setpoint Min. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain ALERT Cold...
  • Page 34 (There is a 10 second countdown before full hot is supplied to the blend circuit. The display on the DRV40 changes to confirm the disinfection cycle is active.) Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium...
  • Page 35 Error Temp. Cycle the power off / on to reset the DRV40, make sure the blend circuit is at a safe temperature before allowing any outlets to be used. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium...

  • Page 36: Disinfection Step By Step - 1

    Change Disinfection Timeout to new value. Click Set. Click Refresh to confirm. Click On under Valve Control. For all further disinfection cycles, use Step by Step - 2. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 37: Disinfection Step By Step - 2

    Any alteration to the plumbing system that may affect the blend circuit may, as a consequence, also affect the Disinfection Timeout period. Repeat all of Step by Step -1 to maintain a reliable disinfection cycle for the system. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 38: Options

    Gear Drive Assembly (see Preventative Maintenance and Fitting Spare Parts for further details) Do not use Calibration Set for any other reason. If in doubt contact Armstrong for further advice. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium...

  • Page 39: Drv40 Display Alerts

    (if the Activate Relay Setpoint 49˚C on Alert box is checked - see page 29). DRV40 Error Messages See Troubleshooting... Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 40: Connectivity

    See Options screen on page 38 for details on how to switch DRV40 for either BrainScan® or Modbus. BrainScan® (not available in Europe) BrainScan® is an optionally selected control module from Armstrong which enables an interface with Building Automation Systems (BAS) which utilize Modbus, Bacnet™ or LonWorks™ protocols via the use of specific ProtoCessor cards.

  • Page 41: System Performance

    DRV40 can be programmed to issue suitable alerts and / or system hot water shutoffs (DRV40) and shutdowns (Independent Solenoid Valve). Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium...

  • Page 42: Preventative Maintenance And Fitting Spare Parts

    DRV40 components should be inspected annually, or more frequently where acknowledged site conditions such as high mineral content water dictate. Each DRV40 has a serial number that is maintained on file with the technical department at Armstrong. For any installation, operation, maintenance or technical support details not covered in this guide, please call our Technical Department quoting the model and / or serial number.

  • Page 43: Drv40 Disassembly

    Limited Warranty. (See back page for full details.) Step 4 Step 5 Note! Retain Clips if replacing electronics module Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 44: Electronics Module

    DRV40 Electronics Module Spare Parts D57397 Electronics Module D57398 D45781 D45782 Front Cover D77504 Thermistor Loom D98156 Y-Strap D57397 D77504 D45780 D45782 D45781 D45782 D98156 D45782 Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 45 Note! Retain batteries if replacing electronics module Only remove if seal is to be renewed 2 x CR - P2 6V Step 3 Step 4 Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 46 Step 5 Note! Remove 8 pin plug, unscrew lock nut and withdraw Thermistor Loom Step 6 Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 47: Pcb Connections

    DB9 / RS485 Power Supply (high voltage) DRV40 Thermistors Remote Thermistors Relay Power Relay Supply Fuse Fuse * See separate guide - www.armstronginternational.com/sites/default/files/resources/documents/IOM-690.pdf **See separate guide - www.armstronginternational.com/sites/default/files/resources/documents/IOM-776.pdf Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 48: Drv

    Drain Plug D45792 Seal Pack D45795 Screw Pack D45795 x2 x3 D45792 D45787 D45792 D45792 D45788 D45789 D45792 D45787 D45786 D45792 D68927 D45791 D45784 D45795 D45785 D45795 Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 49 Step 1 Step 2 2.5mm HEX 3mm HEX Step 3 Step 4 13mm HEX Seals shown 1:1 when printed at Full Scale Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 50 Step 5 3mm HEX Step 6 3mm HEX Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 51 Step 7 Step 7a Step 7b 3mm HEX Seals shown 1:1 when printed at Full Scale Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 52 Step 8 Use one of the 3mm Hex screws to assist in removing the cartridge. 3mm HEX Step 9 Cartridge will fall when loose. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 53 Step 10 D45792 Seal Pack Only use silicone based lubricants on rubber seals. Seals shown 1:1 when printed at Full Scale Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 54 Step 12 Use one of the 3mm Hex screws to assist in refitting the cartridge. Remove the screw when the cartridge is inserted fully. 3mm HEX Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 55 Run the The Brain® DRV Programming Software and go to the Options screen. Click Off under Valve Control. Click Calibration Set. Click Yes to preceed with the calibration. Monitor the DRV40 display. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 56 Calibrate HotEnd Valve Reset... Rada DRV40 Temp. 48˚C Setpoint 49˚C Wait for the DRV40 to reset. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 57: Troubleshooting

    “No display or no control” ..............67 “Cannot read the LCD display” ............. 68 “High pitched noise from DRV40” ............69 “Water leaking from DRV40” ..............70 Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 58: Drv40 Display Errors

    PCB, or Temp 49˚C Error Reset P/N - D57397 Electronics Module see pages 43-46. Temp 49˚C Error Reset Temp 49˚C Error Reset Temp 49˚C Error Reset Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 59 Batteries are at minimal power or flat • Replace batteries (see Preventative Maintenance and Fitting Spare Parts on page 42. Do not use Armstrong International rechargeable batteries) Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...
  • Page 60 PCB (see page 47). If problem persists, replace PCB and / or LCD. P/N - D45781 LCD, or P/N - D57396 See pages 43-46 Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 61: Common Faults

    Water pressure Make sure supply pressures are balanced. Make sure mixed return is flowing correctly to hot water supply inlet. Return to Hot Water Supply Inlet Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 62: Outlet Temperature Fluctuates More Than ± 2°C

    Water pressure Make sure supply pressures are balanced. Check for the following: Air locks • • Blocked strainers • Closed valves Armstrong International Return to Hot Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium Water Supply Inlet armstronginternational.com/brain...

  • Page 63: Lcd Display Shows Any Of The Following

    Check water supplies are connected to the correct inlet ports. Check inlet supply temperature Reset DRV40 Turn power off for 10 seconds and restart. Armstrong International Return to Hot Water Supply Inlet Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 64: Disinfection Timeout Period

    Cool Down start and finish times. • • Early abort of disinfection cycle. • Use of a dump valve to speed up cool down time. Return to Hot Water Supply Inlet Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 65: Constant Difference Between Blend Circuit Temperature Reading And Drv40 Temperature Display

    Turn power off for 10 seconds and restart. If the error persists, check the thermistor connections or replace the thermistors. Blend circuit thermometer Check or replace. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 66: Unable To Adjust Outlet Temperature

    Make sure mixed return is flowing correctly to water heater. Check for the following: Air locks • • Blocked strainers • Closed valves Return to Hot Water Supply Inlet Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 67: No Display

    DRV40 Display Errors on pages 58. Error PCB power cable length If any other error message is displayed see DRV40 Display Errors on pages 58-60. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 68: Cannot Read The Lcd Display

    Setting power cable length High Voltage supply exposed when cover is removed If any other error message is displayed see DRV40 Display Errors on pages 58-60. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 69: High Pitched Noise From Drv40

    Blocked strainers • Closed isolator valves Check inlet flow rates are within speci- • fied parameters. (See Specifications on page 8.) Return to Hot Water Supply Inlet Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 70: Water Leaking From Drv40

    Check drain plug and seal for wear and / or damage. Make sure drain plug and seal are fitted and tightened adequately. If problem persists, replace both plug and seal. Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 71: Notes

    Notes Armstrong International Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium armstronginternational.com/brain...

  • Page 72: Limited Warranty And Remedy

    As a condition of enforcing any rights or remedies relating to Armstrong products, notice of any warranty or other claim relating to the products must be given in writing to Armstrong: (i) within 30 days of last day of the applicable warranty period, or (ii) within 30 days of the date of the manifestation of the condition or occurrence giving rise to the claim, whichever is earlier.

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