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Wilo Stratos MAXO User Manual
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Wilo Stratos MAXO User Manual

Wilo Stratos MAXO User Manual

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Pioneering for You
Wilo-Stratos MAXO/-D/-Z
en User manual
·
2239737 • Ed.01/2024-08

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Summary of Contents for Wilo Stratos MAXO

  • Page 1 Pioneering for You Wilo-Stratos MAXO/-D/-Z en User manual · 2239737 • Ed.01/2024-08...
  • Page 2 Stratos MAXO https://qr.wilo.com/171 Stratos MAXO-D https://qr.wilo.com/172 Stratos MAXO-Z https://qr.wilo.com/173...

  • Page 3: Table Of Contents

    Application and function of the analogue inputs AI1 and 14.18 Disabling Bluetooth............ 99 AI2 .................. 63 14.19 Key lock................ 99 Application and function of the Wilo Net interface .. 76 14.20 Temperature sensor ............ 100 Application and function of CIF module...... 77 15 Pump settings with typical applications ...... 101 7 Device settings ................
  • Page 4 15.7 Setting “Temperature correction” ......... 104 15.8 Setting “Heat quantity measurement”...... 104 15.9 Setting automatic “switching between heating and cooling” ................ 105 15.10 Setting two single pumps in dual-pump operation.. 105 15.11 Setting “Detection of thermal disinfection”.... 106 User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 5: General

    Failure to follow the instructions can lead to potentially irrepar- able property damage as well as to total loss. • NOTICE! Useful information on handling the product Symbols These instructions use the following symbols: User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 6: Personnel Qualifications

    If required, this can be carried out by the product manufacturer at the operator’s request. Pump operation Description of operating elements Fig. 1: Operating elements (single pump) User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 7: Settings On Pump

    A yellow focus indicates a configuration of settings. • Green focus: Navigation in menu. • Yellow focus: Change settings. • Turn  : Menu selection and parameter setting. • Press  : Activation of menus or confirming settings. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 8: Initial Settings Menu

    Stratos MAXO/Stratos MAXO-D: The pump runs in the factory setting ➜ Application: Radiator; Control mode: Dynamic Adapt plus. – Stratos MAXO-Z: The pump runs in the factory setting ➜ Application: Domestic hot water circulation; control mode: Temperature T const •...

  • Page 9: Home Screen

    Display of currently set application and control mode. Setpoint display Displays currently configured setpoints. field Setpoint editor Yellow frame: You have pressed the operating button to open the setpoint editor and change the value. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 10 Main/standby operation Solid pump symbol: Motor running on this side of the pump. The graphic display has been installed on the left. Pump continues to run in the configured control mode without additional influences. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 11 This status is always accompanied by a warning provid- ing more information about the status. Dry run (vent- Air detected in the rotor chamber. Pump attempting to evacu- ing) ate air from the rotor chamber. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 12: Main Menu

    Turn the control knob to the left or right to select a sub-menu item. The selected sub- menu item has been highlighted in green. Press the control knob to confirm your selection. The selected sub-menu or downstream User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 13: Settings Dialogues

    Home screen or error display. Settings dialogues have been highlighted with a yellow frame and show the current setting. Settings dialogues User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 14: Status Area And Status Displays

    If a status is active, it is possible to display and select status menu items in the main menu. Turn the control knob to the status area to show the active status. If an active process (e.g. venting process) is quit or discarded, the status display is hidden again. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 15 The “Venting” icon has been selected in the main menu. The venting process is active and information about venting is displayed. Further status displays can be displayed, if they are available, by turning the control knob to the corresponding symbol. Symbol Meaning Error message Pump stopped! User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 16: Setting The Control Functions

    Select control functions using the setting assistant. 3.1.1 Constant speed (n-const / con- stant speed) Fig. 10: Speed constant The speed of the pump is kept at a set constant speed. The speed range depends on the pump type. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 17 H (slope ∆p‑v characteristic curve). NOTICE Options “Nominal duty point Q” and “Slope of ∆p-v characteristic curve” are available in the context menu [•••] of the setpoint editor “∆p-v dif- ferential pressure setpoint”. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 18 The “internal sensor” as sensor source T1 or T2 is not available with the “-R7” version. 3.1.7 Differential temperature constant The pump controls to a set differential temperature ∆T (e.g. difference from feed and setpoint (∆T-const) return temperature). User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 19 (secondary loop) with the Multi-Flow Adaptation control mode. Multi-Flow Adaptation is set on the Wilo-Stratos MAXO feeder pump in the primary circuit upstream of a hydraulic shunt or a heat exchanger. The Wilo-Stratos MAXO feeder pump is connected to the Wilo-Stratos MAXO pumps in the secondary circuits with Wilo Net data cable.

  • Page 20: Additional Control Functions

    The additional control function “night setback” is an energy-saving function. Avoiding unnecessary running times thus saves electrical pump energy. This function is deactivated in the factory settings and must be activated if required. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 21 Reducing unnecessary running times saves electrical pumping energy. NOTICE The additional “No-Flow Stop” control function is available for suitable applications only! The additional control function “No-Flow Stop” cannot be combined with the additional control function “Q-Limit ”! User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 22 In case of inadequate supply in the partial load range, the value must be increased. • In case of excessive supply in the partial load range, the value can be reduced. More en- ergy can be saved and flow noises are reduced. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 23 3.2.8 Detection of thermal disinfection The Stratos MAXO-Z uses a sensor connected to the hot water tank or the hot water out- put line to detect when the hot water temperature exceeds a specified limit value. It de- tects that thermal disinfection has been started and thus continues to supply at full speed.

  • Page 24: Settings And Configuration

    “Setting assistant” in sequence. Possible application selection: Application Menu for adjusting Heating pump functions Cooling Heating & cooling Drinking water Basic control modes Fig. 16: Application selection The “Heating” application is used as an example. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 25 Heat exchanger Settings help Fig. 18: Example – “Radiator” system type Select the “Radiator” system type by turning the control knob and press to confirm. Different control modes are available depending on the system type. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 26 Pump ON/OFF The pump is: Motor Off Fig. 20: Setting assistant Direct selection of a basic control mode In the “Settings” menu  , select “Set control mode” “Setting assistant” “Basic control modes” in sequence. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 27 The “Heating & cooling” application combines both the applications. The pump is set sep- arately for both applications and can switch between both applications. In the “Settings” menu , select “Set control mode” “Setting assistant” “Heating & cooling” in sequence. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 28 Sec. feed temperature T-const. Feed ΔT Multi-Flow Adaptation Volume flow cQ ‣ Heat source circuit* Feed/return ΔT (heat pump) Volume flow cQ ‣ District heating circuit* Differential pressure Δp-c Differential pressure Δp-v Index circuit Δp-c User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 29 Table 9: Selection of system type and control mode for “Cooling” application *System type from SW > 01.05.10.00 available Every control mode, with the exception of speed n-const., additionally requires the selec- tion of the actual value or sensor source (analogue input AI1 to AI2). User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 30 Detection: Switched off Fig. 24: Heating/cooling switchover Initially select “Heating” in the “Set control mode” – “Heating/cooling switchover” menu. Then configure additional settings (e.g. setpoint specification, night setback, etc.) in the “Set control mode” menu. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 31 Heating/cooling switchover The pump automatically switches via Heating temperature limit values between heating and cooling. Cooling Automatic Binary input Fig. 27: Heating/cooling switchover_“Automatic” User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 32 The pump switches via an external signal at the Heating binary input between heating and cooling. Cooling Automatic Binary input Fig. 29: Heating/cooling switchover_“Binary input” The binary input must be set to “Switching heating/cooling” function. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 33 Multi-Flow Adaptation Volume flow Q-const. Differential pressure-less distributor Multi-Flow Adaptation Volume flow Q-const. Buffer heating Multi-Flow Adaptation Volume flow Q-const. Heat exchanger Sec. feed temperature T-const. Feed Δ-T ● Multi-Flow Adaptation Volume flow Q-const. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 34 Differential pressure Δp-v Dynamic Adapt plus Hall temperature T-const. Concrete core cooling Differential pressure Δp-c Dynamic Adapt plus Feed/return ΔT Volume flow Q-const. Hydraulic shunt Sec. feed temperature T-const. Return Δ-T ● Multi-Flow Adaptation User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 35 Stop disinfection Drinking water (circulation) Temperature T-const. Drinking water storage tank Charge pump Basic control modes Differential pressure Δp-c Differential pressure Δp-v Index circuit Δp-c Dynamic Adapt plus Volume flow Q-const. Multi-Flow Adaptation User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 36: Settings Menu - Set Auto Control

    “Heating & Cooling” and “Heating/cooling switchover”. Delivery head setpoint Setting the setpoint of the delivery head H for the control mode. Visible for active control modes, which require a delivery head as setpoint. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 37 Overview of the number of connected secondary pumps and their requirements. Visible for Multi-Flow Adaptation. Volume flow offset Pumps without Wilo Net communication can be supplied with an adjustable offset volume flow in the Multi-Flow Adaptation sys- Visible for Multi-Flow Adaptation. tem.

  • Page 38: Adjustment - Manual Operation

    Pump works according to the set controls. Pump is switched off. Pump is not running. All other set controls will be overridden. The pump is set to minimum power. All other set controls are overridden. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 39: Setting Up Multi-Flow Adaptation

    “Wilo Net” interface between the feeder pump and the secondary pump(s). Wilo Net is a Wilo system bus used for establishing communication between Wilo products. In order to establish the Wilo Net connection, the three H, L, GND terminals must be wired with a com- munication cable from pump to pump.
  • Page 40 With the operation on pump head I of a twin-head pump (with graphic display), only the Wilo Net ID and termination of this pump head can be changed. In order to be able to assign new Wilo Net IDs to both pump heads of a twin-head pump, the twin-head pump system must first be disbanded and the new ID (e.g.
  • Page 41 Wilo Net address systems). Participant address The feeder pump and the last wired secondary pump must be selected as “switched on” when selecting the Wilo Net termination. The other secondary pumps must remain “switched off”. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 42 In a Multi-Flow Adaptation system with twin-head pumps, a maximum of 5 twin-head pumps can communicate with each other via Wilo Net in the MFA network. In addition to this maximum of 5 twin-head pumps, up to 11 additional single pumps can be included in the network.
  • Page 43 The type of use must be selected and the setpoint source coupled to the analogue inputs. In addition, the heating or cooling quantity measurement must be activated on the respective pump. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 44 4.5.3 Step 3 – Selection of secondary In order to select the secondary pumps connected to the Wilo Net, select “Selection of sec- pumps ondary pumps” in the menu. The connected secondary pumps are listed there and can be selected.
  • Page 45 It is therefore recommended to only switch off the pump via a digital input with EXT. OFF. The Wilo-Stratos MAXO is able to record and save a range of timestamped data relating to its operating time: •...

  • Page 46: Heating/Cooling Quantity Measurement

    NOTICE The “-R7” version of the Stratos MAXO /-D has no internal temperature sensor. The “internal sensor” cannot therefore be selected as a sensor source in the feed or return. Only sensors connected to AI1 and AI2 can be selected.

  • Page 47: Setback Operation

    “Restore settings” menu. NOTICE The settings of both drives are saved in the twin-head pump. Save settings In the “Restore and reset” menu, select “Restore points” “Save settings” in sequence. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 48 Fig. 40: Restore points – Save settings Restore settings In the “Restore and reset” menu, select “Restore points” “Restore settings” in sequence. NOTICE The current settings are overwritten by the restored settings! User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 49 “Restore and reset” menu, select “Factory setting” “Restore factory setting” “Factory settings (BMS remains)” or “Factory settings complete” and “Confirm factory setting” in sequence. NOTICE Resetting pump settings to factory settings replaces the current pump settings! User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 50 Wilo Net Wilo Net termination switched on (for twin-head switched off pumps) Wilo Net address Twin-head pump ID 127 Main pump: ID 1 Standby pump: ID 2 Single pump: ID 127 User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 51: Operating Data/Statistics

    Actual volume flow 4.10.1 Accuracy of the displayed and re- Volume flow corded operating data The accuracy of the volume flow specification with pure water is approx. +/- 5 % of the duty point. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 52: Pump Venting

    Context button “Cancel pump venting”. Pump venting for twin-head pumps With the Stratos MAXO-D, the pump venting function can be activated on both drives. The function can be activated as described above on the left drive side with the graphic display.

  • Page 53: Ramp Times

    “Ramp times” in sequence. Double pump operation Function All Stratos MAXO pumps are fitted with integrated dual-pump management. The Stratos MAXO-D is delivered from the factory ready assembled as a twin-head pump with the dual-pump management main/standby operation. 5.1.1 Main/standby operation Each of the two pumps provides the configured flow rate.
  • Page 54 “Dual-pump operation” “Connecting twin-head pump”. When the Wilo Net connection is established (see “Application and function of the Wilo Net interface [” 76]” section), a list of available and appropriate dual-pump partners will ap- pear under “Connecting twin-head pump”. Appropriate dual-pump partners are pumps of the same type.
  • Page 55 If a twin-head pump connection is established, entries on the graphic display of the pump partner are not possible. This can be identified by a lock symbol on the “Main menu symbol”. Illustration of the pump symbols and meaning: User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 56 Both pumps are active in parallel in control mode. Parallel operation: This pump head Twin-head pump is set in parallel oper- active ation. This pump head is active in control mode. The pump partner is inactive. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 57 Display text of the pump for active of the pump for active motor influences motor influences Active Active Override Override OFF OFF (DI1/2) (DI1/2) Not act- OK; normal Active operation Override OFF (DI1/2) User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 58: Communication Interfaces: Setting And Function

    • When the pump does not have electricity or if there is no fault, the contact between the terminals COM (75) and OK (76) is closed. The contact is open in all other cases. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 59: Application And Function Of Sbm Relay

    When the pump is running in the set operating mode and based on the next settings, the contact between the terminals COM (85) and RUN (88) are closed. In the “Settings” menu  , select “External interfaces” “SBM relay function”. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 60: Setting Individual Fault Signal (Esm) For Twin-Head Pumps

    (ESM) for twin-head pumps “External interfaces” “SSM relay function” “Only errors” or “Faults and warnings” “SSM trigger delay” “SSM reset delay” “SSM/ESM twin-head pump”, SSM or ESM Confirm selection by pressing the control knob. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 61: Setting Individual Run Signal (Ebm) For Twin-Head Pumps

    Possible settings: Selection option Function control input DI1 or DI2 Not used The control input does not have a function. External OFF Contact open: Pump is switched off. Contact closed: Pump is switched on. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 62 MIN, External MIN (binary input), External MIN (bus system) MANUAL, External MANUAL (binary input) Table 29: Override function priorities * Priority 1 = highest priority Key lock priorities Priority* Function Key lock: digital input active User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 63 Setting assistant, setpoints, options Manual operation Manual override Twin-head pump operation Set twin-head pump External interfaces Analogue, digital, SSM, SBM ... Fig. 46: External interfaces “Function analogue input AI1” or “Function analogue input AI2” in sequence. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 64: Ai2

    This analogue input is not used. No settings required Setpoint sensor Use analogue input as setpoint sensor. For example, delivery head. Differential pressure sensor Use analogue input as actual value input for differen- tial pressure sensor. For example, index circuit evaluator. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 65 AI2 has been configured for a type of use and a signal type. The use of an external signal at the analogue input as setpoint source requires coupling of the setpoint value to the analogue signal: In the “Settings” menu  , select “Set control mode”. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 66 “Not configured” or as actual value input, the pump displays a configuration warning. The fallback value is assumed to be the setpoint value. Either another source must be selected or the source must be configured as setpoint source. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 67 Set input for external setpoint Select setpoint source Set setpoint source Substitute setpoint in the event of a cable break Table 35: Set input for external setpoint The setpoint source can be changed in select “Setpoint source”. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 68 If necessary, select a different source. Select the “Signal type” after selecting the type of use: User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 69 Table 37: Standard signal assignment 0 – 10 V Signal type 2 – 10 V Cable break detection < 2.0 V OFF: 2.5 V 3.0 V Min: 3.0 V Max: 10.0 V Table 38: Standard signal assignment 2 – 10 V Signal type 0 – 20 mA OFF: 2.0 mA 4.0 mA User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 70 A setpoint change can be done through analogue signals without switching on and off the pump through the signals. In this case, “Switched off” is selected. If the “On/off through analogue signal” function is switched on, the limit values must be User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 71 Fig. 60: Minimum signal/value assignment The value for the minimum signal describes the lower signal value of the transfer ramp with an associated value of 2 m. In this example, the lower signal value is 2 V. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 72 Differential pressure control with index circuit actual value logging • User-defined sensor values for: – PID control Possible signal types when selecting the analogue input as actual value input: Actual value sensor signal types: User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 73 If necessary, select a different source. Select the “Signal type” after selecting the actual value sensor: User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 74 Fig. 65: Minimum signal/value assignment, actual value sensor The value for the minimum signal describes the lower signal value of the transmission ramp with an associated value of 0 %. This is the equivalent of 0.0 mA for -10 °C in this example. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 75 Internal sensor • Analogue input 1 • Analogue input 2 • BMS (Building management systems) • Feed • Return • Primary circuit 1 • Primary circuit 2 • Secondary circuit 1 • Secondary circuit 2 • Accumulator • Hall User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 76 • Circulation Application and function of the Wilo Net is a bus system which enables up to 21 Wilo products (participants) to communic- Wilo Net interface ate with one another. Application for: • Generic twin-head pump • Two-pump system consisting of two single pumps (Y-pipe installation) •...

  • Page 77: Application And Function Of Cif Module

    Accessories = 1 participant (e.g. ID 21) A maximum of 18 pumps remain on the secondary side in the MFA system (ID 3 to 20). In the Wilo Net settings, the Wilo Net ID address space of 1 to 126 is displayed as ad- justable.

  • Page 78: Display Brightness

    Display of the delivery head in kPa and the volume flow in m  / h SI units 3 Representation of delivery head in kPa and volume flow in l/s US units • volume flow in USGPM • delivery head in ft Table 41: Units User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 79 NOTICE Units are set to SI units 1 as a factory setting. For Stratos MAXO variants for the USA and Canada, the units are set to US units at the factory. Bluetooth On/Off Under “Settings” “Device settings” “Bluetooth On/Off” you can switch Bluetooth on or off. When Bluetooth is switched on, the pump can con- nect to other Bluetooth devices (e.g., smartphone with Wilo-Assistant app and the...
  • Page 80 Device settings Display of different device information Country/language/units Adaptation of the presentation Bluetooth On/Off Current: Switched off Key lock On Key lock: Not active Device information Hardware and software version, ... Fig. 71: Device settings User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 81: Pump Kick

    By pressing the Context button , you can access more information about the displayed topics. Going back to the previous help page is possible at any time by pressing the Context button and selecting “back”. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 82: Service Contact

    Diagnostics help is used for diagnosis and maintenance of electronics and interfaces. Apart from hydraulic and electrical overviews, information about interfaces, device information and manufacturer’s contact data are provided. In the “Diagnostics and measured values” menu , select “Diagnostics help”. Selection options: User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 83: Error Messages

    Error message, error code (E...), cause and remedy are described as text. Error messages displayed on the LED display with seven segments • An error code (E...) is displayed. Fig. 76: Error code display User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 84 Check the motor module motor and module inter- between motor and connection. rupted. module faulty. Additional information about causes and remedies: Dismantle the electronic module to check the contacts between module and motor. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 85: Warning Messages

    An orange warning triangle is displayed in the top left-hand corner of the home screen. • If the warning is not cancelled or resolved, the view switches from the home screen to the warning message screen after 20 minutes. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 86 Additional information about causes and remedy: Cable break detection may lead to substitute operation modes that ensure func- tioning of the pump without the required external value. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 87 Signal too strong to ana- The available signal is Check input signal. logue input AI 1. significantly over the expected maximum. Additional information about causes and remedy: The signal is processed with the maximum value. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 88 Additional information about causes and remedy: The pump function is slightly impaired. The pump can no longer determine the internal fluid temperature. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 89 Additional information about causes and remedy: A maximum replacement flow is provided for the Multi-Flow Adaptation partner. Check the partners highlighted with (!) in the MFA overview of the context menu. Table 44: Warning messages MFA= Multi-Flow Adaptation User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 90: Configuration Warnings

    The sensor sources are not correctly configured. In the context menu there is a link for configuring the sensor sources. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 91 Configure a sensor source to possible. configured to the another source. same source. The sensor sources for the cooling function are not correctly configured. In the context menu there is a link for configuring the sensor sources. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 92: Software Update

    You will be asked to log in with a “MyWilo” account the first time you use the app. Wilo- Smart connect uses this account to exchange data with the Wilo-Smart Cloud. On the log-in screen, there is a link to create a new “MyWilo” account if required. The app will remember your log-in details after the first log-in.

  • Page 93: Preparing A Bluetooth Connection

    To activate signalling, click on the arrow behind the pump entry in the list. The pump selected in this way then switches to a “Focus” mode. For the Stratos MAXO, the display turns largely blue and the blue LED under the display flashes.

  • Page 94: Software Update For Connected Twin-Head Pumps

    “heating and cooling” applications or for temperature-dependent control modes. The PT1000 AA is connected to the Wilo-Stratos MAXO at one of the two analogue inputs AI1 or AI2, which have to be set to the connection type PT1000.

  • Page 95: Pt1000 B (Pipe Surface Contact Sensor)

    If the sensor cable is extended > 3 m, a “temperature correction value” can be set to com- pensate for the electrical resistance. (See the “Temperature sensor [” 100]” section). For the thermal disinfection function on the Wilo-Stratos MAXO-Z, the PT1000 B temper- 13.3 PT1000 B (pipe surface contact ature sensor is available for measuring the temperature of the hot water tank.

  • Page 96: Angle Plug

    Delivery state What happens to the date and time if the pump is stored at the distributor for several months? The Stratos MAXO has a battery to store this data. The service life of this battery is around 8 years. 14.2...

  • Page 97: Twin-Head Pump

    What spare parts are available for the Stratos MAXO pumps? You can find the available spare parts for all Wilo-Stratos MAXO products in the Wilo spare parts catalogue: https://spareparts.wilo.com Original spare parts may only be obtained from local installers and/or Wilo customer service.

  • Page 98: Error Message

    After changing the pump from Stratos to Stratos MAXO, how does the connection of the 2-wire cable provided by the customer to the SSM connection of the Stratos MAXO work? The Stratos SSM connection is a potential-free normally closed contact, the Stratos MAXO SSM connection is a potential-free changeover contact.

  • Page 99: Domestic Hot Water Circulation

    Does it damage the pump if it is operated in generator operation for a short period? The “generator operation” is safe for the Stratos MAXO for a short period (approx. 15 to 30 minutes) if the permitted maximum speed of the respective pump is not exceeded. Exceed- ing the maximum speed results in increased wear, which reduces the service life.

  • Page 100: Temperature Sensor

    Set a temperature correction value to compensate for the electrical res- istance if the cable length is more than 5 m. If the PT1000 cable is extended with another cable, Wilo recommends the WAGO connec- tion terminal type WAGO 221-2411. How is the temperature correction value determined for a cable extension? Option 1, if exact temperature measurement is not required, carry out the following steps: Measure the actual temperature on the PT1000.

  • Page 101: Pump Settings With Typical Applications

    For additional information, see the Actual value sensor configuration [” 72] section. Pump settings with typical ap- This section describes various pump settings step by step via the Stratos MAXO menu. plications 15.1 Setting control mode “Δp-c” using Starting situation the underfloor heating type of •...

  • Page 102: Setting "Control Mode T-C" Including Configuration Of A Pt1000 Temperature Sensor

    →Press and hold back button (left); the setting returns to the start screen. 15.5 Setting “control mode ΔT-c” in the Starting situation heating application – including • Pump starts in factory settings DA+. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 103: Setting "Control Mode Δt-C" In The Cooling Application - Including Configuration Of A Pt1000 Temperature Sensor

    Temperature sensor (turn control knob right + press) → PT1000 (press control knob) → Setpoint temperature ΔT-c (turn control knob right + press) → Set setpoint temperature up to e.g. 20.0 K (turn control knob left + press) User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 104: Setting "Temperature Correction

    Select sensor position (turn control knob right + press) → Return (turn control knob right + press) → Back button (turn control knob right + press) → Display of heat quantity (turn control knob right + press) User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...

  • Page 105: Setting Automatic "Switching Between Heating And Cooling

    • Pumps start in factory setting DA+. • Both pumps are connected with a cable via the Wilo Net interface. The following settings must be configured on both pumps: → Settings (turn control knob right + press) →...

  • Page 106: Setting "Detection Of Thermal Disinfection

    Detection of disinfection (turn control knob right + press) → Switched on (turn control knob right + press) → Set disinfection limit value (press control knob) → Sensor detection of disinfection (turn control knob right + press) User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 107 The temperature measurements for the control mode T-c and for the disinfection detection cannot be taken with the same temperature sensor. In this case, the control mode switches to n-const. with the set emergency operation speed. User manual • Wilo-Stratos MAXO/-D/-Z • Ed.01/2024-08...
  • Page 112 Local contact at www.wilo.com/contact WILO SE Wilopark 1 44263 Dortmund Germany T +49 (0)231 4102-0 T +49 (0)231 4102-7363 wilo@wilo.com Pioneering for You www.wilo.com...

This manual is also suitable for:

Stratos maxo-dStratos maxo-z