• Various options for connection to a building management system
• Intuitive operation thanks to the application functions of the Setup Guide as well as the combination of the new display with control button with green button technology.
• Highest energy efficiency through a combination of optimized and innovative energy-saving features (e.g. No-Flow Stop).
• Optimum system efficiency thanks to new and innovative intelligent control functions such as Dynamic Adapt plus, Multi-Flow Adaptation, T-const. and ΔT-const.
• State-of-the-art communication interfaces (e.g. Bluetooth) for connection to mobile end devices and direct pump networking for multiple pump control via Wilo Net.
• Maximum ease of wiring thanks to the clear and ergonomic terminal box and the optimized Wilo-Connector.

Smart pump for object design with building management system.

With optimized and innovative energy-saving features, the Wilo-Stratos MAXO sets new standards for energy efficiency in commercial pump applications for heating, ventilation and air conditioning and drinking water supplies.In addition, its exceptional user friendliness makes operation easier than ever.

A type
Smart glandless circulation pump with threaded or flange connection, EC motor with integrated electronic power regulation.

Application
Any hot water heating systems, air conditioning systems, closed cooling circuits, industrial circulation systems.

Equipment / function

Areas of use

The pump allows fine tuning of the control mode for specific application conditions in a particular installation (eg radiator, underfloor heating, ceiling cooling) while operating at the highest efficiency.

Heating

• Radiator
• underfloor heating;
• ceiling heating;
• Air heater
• Comb
• heat exchanger,

Cooling

• Ceiling cooling
• Floor cooling
• Air conditioners
• Comb
• heat exchanger,
• Combination of heating and cooling

Automatic switching

Depending on the selected application, the following control methods are possible:

Regulation methods

• Constant speed (control mode)
• Δp-c for constant differential pressure
• Δp-v for variable differential pressure
• Dynamic Adapt plus for continuous (dynamic) adaptation of performance to current needs
• T-const. for constant temperature control
• ΔT for differential temperature control
• Constant Q for constant flow control
• Multi-Flow Adaptation: Determination of the total flow through the feed pump for the required supply of the secondary pumps in the heating circuit distributors
• User-defined PID controller

Optional functions

• Q-Limitmax. to limit the maximum flow
• Q-Limitmin. to limit the minimum flow
• No-Flow Stop
• Automatic night lowering
• Pessimum point regulation (Δp-c with external real state sensor)
• Variable slope Δp-v

Manual settings

• Application selection via the Setup Guide
• Setting the relevant operating parameters
• Nominal duty point: direct input of the calculated duty point at Δp-v
• Status indication
• Setting and resetting the energy counter (heat and cooling)
• Pump ventilation function
• Key lock to prohibit settings
• Function for factory reset or saved restore points (parameter sets)
• Entering the parameters of analog inputs
• Entering the parameters of the binary inputs
• Entering the parameters of the relay outputs
• Double pump operation (with two single-head pumps, which are to be operated as a double pump)

Automatic control

• Demand-optimized power regulation for energy-efficient operation depending on the operating mode
• Decrease operation identification
• Shutdown when no flow is detected (No-Flow Stop)
• Smooth start
• Automatic troubleshooting procedures (e.g. release function)
• Heating / cooling switching
• Full motor protection with integrated electronic shutdown system

External control inputs and their functions

2 analog inputs:

• Signal types: 0-10 V, 2-10 V, 0-20 mA, 4-20 mA, PT1000
• Application: Remote setpoint control for each control mode (except Multi-Flow Adaptation), sensor inputs for temperature, differential pressure or an arbitrary sensor in user-defined PID mode
• 2 digital inputs:
• For potential-free control outputs or switches
• Parameterizable functions:
  • Ext. OFF
  • Ext. MIN
  • Ext. MAX
  • MANUAL (building management system-OFF)
  • Key lock
  • Heating / cooling switching

Wilo Net for the control of double pumps (two single pumps), communication of several pumps with each other and remote control of pumps via a gateway

Signaling and indication

• Display status - indication of the operating mode:
  • Set value
  • current head value
  • Actual consumption
  • power consumption
  • Electricity consumption
  • Temperatures
• Status indication by LED: Error-free operation (green LED), pump communication (blue LED)
• Display status - error indication (display color red):
  • Error codes and their description in full text
  • Remedial action
• Display status - warning indication (display color yellow):
  • Warning codes and warning description in full text
  • Remedial action
• Display status - progress indication (display color blue):
  • Air vent pump
  • Update process
• Display state - communication with BMS (display color blue):
• Summary of active BMS parameters (baud rate, address ...)
• Generalized fault signaling SSM (potential-free changeover contact)
• Generalized operating signaling (SBM) (potential-free normally open contact)

Data exchange

• Bluetooth interface for wireless communication as well as remote control of the pump via smartphone or tablet.
• Serial digital interface Modbus RTU for connection to a building automation system via RS485 bus system (possible with Wilo CIF Modbus RTU module).
• BACnet MS / TP serial digital interface for connection to building automation via RS485 bus system (Wilo-CIF BACnet MS / TP module can be used).
• Serial digital LON interface for connection to building automation via the LONWorks bus (possibly with Wilo CIF LON module).
• Serial digital interface PLR ​​for connection to building automation via company-specific communication modules (possibly with Wilo CIF PLR module).

Twin pump control (twin pump or two single pumps)

• Main / standby operation (automatic failover / timed pump changeover)
• Combined operation of two pumps (switching on and off at peak load, optimized for efficiency)

Equipment

• For pumps with flange connection: flange versions
  • Standard version for pumps DN 32 - DN 65: Combination flange PN 6/10 (flange PN 16 according to EN 1092-2) for counter flanges PN 6 and PN 16
  • Standard version for pumps DN 80 / DN 100: Flange PN 6 (designed by PN 16 according to EN 1092-2) for counter flange PN 6
  • Special version for pumps DN 32 - DN 100: Flange PN 16 (according to EN 1092-2) for counter flange PN 16
• Many integrated communication interfaces and an optionally usable CIF module slot
• 5 cable glands for connecting communication interfaces
• Bluetooth interface
• High resolution graphic display with green button and 2 buttons
• Convenient terminal box
• Built-in temperature sensor
• Serial thermal insulation for pumps used in heating systems
• Fast electrical connection with optimized Wilo-Connector for power supply