Canned motor pump Stratos MAXO-D series

waterwith brushless DC motornormal priming

Short description
The smart-pump for commercial buildings with building management system. More efficiency, connectivity and comfort than ever before – the Wilo-Stratos MAXO and the Wilo-Stratos MAXO-D deliver the future of pump technology. The world’s first smart-pump includes innovations that simplify operation and BMS integration.

Product type
Wet-rotor twin-head circulator.

Key features

• Intuitive operation with application-guided Setup Guide, graphic display and Green Button Technology.
• Energy-saving functions (e.g. No-Flow Stop) for maximised efficiency.
• Intelligent control functions: Dynamic Adapt plus, Multi-Flow Adaptation, T-const., ΔT-const., constant Q.
• Modern communication: Bluetooth and option for Modbus RTU / BACnet MS/TP via CIF modules; pump networking via Wilo Net.
• Integrated EC motor with electronic power adjustment and full motor protection; Wilo-Connector for quick electrical connection.

Product variants / Example entries
Examples:
Stratos MAXO-D 3x3-20 145PSI | Pump connection: 3" | Mains: 1~230-240 V, 50/60 Hz | Gross weight approx. 2.69 lb | Pieces per pallet: 4 | Max. operating pressure: 145 psi | Article number: 2164620
Stratos MAXO-D 3x3-40 145PSI | Pump connection: 3" | Mains: 1~230-240 V, 50/60 Hz | Gross weight approx. 2.78 lb | Pieces per pallet: 4 | Max. operating pressure: 145 psi | Article number: 2164621
Stratos MAXO-D 3x3-52 145PSI | Pump connection: 3" | Mains: 1~230-240 V, 50/60 Hz | Gross weight approx. 2.78 lb | Pieces per pallet: 4 | Max. operating pressure: 145 psi | Article number: 2164622

Design / Construction
Smart glandless twin-head circulator with round flange connection. EC motor with integrated electronic power adjustment, impeller with three-dimensionally curved blades and plastic sealing tube made of carbon-fibre composite. Plug-in slot for optional CIF modules.

Application
Hot-water heating systems, air-conditioning systems, closed cooling circuits and industrial circulation systems. Suitable for radiator, underfloor heating, ceiling cooling, fan heaters and heat exchangers.

Control modes

• Constant speed
• Δp-c (constant differential pressure)
• Δp-v (variable differential pressure)
• Dynamic Adapt plus
• T-const. (constant temperature)
• ΔT (differential temperature)
• Constant Q (constant volume flow)
• Multi-Flow Adaptation
• User-defined PID controller

Optional / Automatic functions

• Q-limit max / Q-limit min
• No-Flow Stop (zero-flow deactivation)
• Automatic setback / reduced operation modes
• Index circuit evaluator (Δp-c with external sensor)
• Thermal disinfection detection (Stratos MAXO-Z)
• Variable Δp-v slope, soft start and automatic troubleshooting routines
• Power adjustment according to requirements

Manual settings and functions

• Setup Guide for selection of application field and parameter setting
• Direct entry of nominal duty point for Δp-v
• Status display and energy meter setting/resetting (heating and cooling)
• Pump venting function, key lock, factory reset and saved parameter sets
• Parameterising analogue/digital inputs and relay outputs
• Dual pump function for two single pumps operated as twin-head pump

External inputs, data exchange and interfaces

• 2 × analogue inputs: 0–10 V, 2–10 V, 0–20 mA, 4–20 mA, PT1000
• 2 × digital inputs: potential-free, parametrisable (Ext. Off, Ext. Min, Ext. Max, MANUAL (BMS-OFF), key lock, heating/cooling switchover)
• Bluetooth for wireless data exchange and remote operation via smartphone/tablet
• Serial interfaces via optional CIF modules: Modbus RTU, BACnet MS/TP; Wilo Net for multi-pump control

Signal and display functions

• High-resolution graphic display with Green Button and two additional buttons: setpoint, actual head, volume flow, power consumption, temperatures
• Status LEDs: green = faultless, blue = pump communication; red = fault, yellow = warning
• Full-text error/warning descriptions with remedial measures; collective fault (SSM) and run (SBM) signals (potential-free contacts)

Equipment / Scope of delivery

• Pump
• 2 × optimized Wilo-Connector with ½ NPT adapter
• 10 × threaded cable glands M16 × 1.5
• Installation and operating instructions

Accessories

• Blind flanges
• PT1000 pipe contact sensor and PT1000 immersion-well sensor
• Differential pressure sensor
• Wilo CIF modules: Modbus RTU, BACnet MS/TP

Technical specifications

• Permissible temperature range: 14 °F (-10 °C) to 230 °F (+110 °C)
• Mains connection: 1~115 V or 1~230-240 V, 50/60 Hz (depending on type)
• Enclosure: Type 2
• Flange connection: 3"
• Max. operating pressure: 145 psi
• Insulation class: F
• Materials: pump housing – grey cast iron (cataphoretic coating); shaft – stainless steel; bearing – carbon; impeller – plastic