Stratos MAXO
Wet rotor circulator
Tomorrow’s technology for today’s systems.
- Intuitive operation by application-guided settings with the setting assistant plus the combination of a new display and control knob using the Green Button Technology.
- Maximum energy efficiency through the combination of optimised and innovative energy-saving functions (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.
- Latest communication interfaces (e.g. Bluetooth) for connection to mobile devices and direct pump networking for multi-pump control via Wilo Net.
- A clearly arranged and spacious terminal box and the optimised Wilo-Connector ensure maximum convenience in electrical installation.
Wilo-Stratos MAXO (North America)
Number of results: [14]
Pump connection
Mains connection
Port-to-port length in inch L0
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Wilo-Stratos MAXO
Design
Glandless smart circulator with oval flange and round flange connection and EC motor with integrated electronic power adjustment.
Application
Hot-water heating systems of all kinds, air-conditioning systems, closed cooling circuits, industrial circulation systems.Equipment/function
Field of application
The pump facilitates an operation with highest system efficiency via precise setting of the control mode for the system-specific application (e.g. radiator, underfloor heating, ceiling cooling).
Heating
- Radiator
- Underfloor heating
- Ceiling heating
- Fan heater
- Heat exchanger
Cooling
- Ceiling cooling
- Underfloor cooling
- Air-conditioning devices
- Heat exchanger
Heating and cooling combined
- Automatic switchover
The following control modes are available depending on the selected application:
Control modes
- Constant speed (control mode)
- Δp-c for constant differential pressure
- Δp-v for variable differential pressure
- Dynamic Adapt plus for continuous (dynamic) adjustment of the delivery rate to the current requirement
- T-const. for constant temperature regulation
- ΔT for differential temperature control
- Constant Q for constant volume flow control
- Multi-Flow Adaptation: Total volume flow determination through the feeder pump for the needs-based supply of secondary pumps in the heating circuit distributors
- User-defined PID controller
Optional functions
- Q-limitmax. for limiting the maximum volume flow
- Q-limitmin. for limiting the minimum volume flow
- No-Flow Stop (zero-flow-deactivation)
- Automatic setback operation
- Index circuit evaluator (Δp-c control with external actual value sensor)
- Variable pitch of Δp-v pump curve
Manual settings
- Selection of the field of application using the Setup Guide
- Setting the related operating parameters
- Nominal duty point: direct input of calculated duty point at Δp-v
- Status display
- Setting and resetting the energy meters (heating and cooling)
- Pump venting function
- Key lock for disabling the settings
- Function for resetting the factory settings or the saved restoration points (parameter sets)
- Parameterising the analogue inputs
- Parameterising the binary inputs
- Parameterising the relay outputs
- Dual pump function (for 2 single pumps, which should be operated as twin-head pump)
Automatic functions
- Power adjustment according to requirements for energy-efficient operation depending on the operating mode
- Setback operation
- Deactivation at zero flow (No-Flow Stop)
- Soft start
- Automatic troubleshooting routines (e.g. deblocking function)
- Switchover heating/cooling mode
- Full motor protection with integrated trip electronics
External control inputs and their functions
- 2 x analogue inputs:
- Signal types: 0 – 10 V, 2 – 10 V, 0 – 20 mA, 4 – 20 mA, PT1000
- Applications: Remote adjustment of the setpoints in every control mode (except Multi-Flow Adaptation), sensor inputs for temperature, differential pressure or free sensor in user-defined PID-operating mode
- 2 x digital inputs:
- For potential-free control outputs or switch
- Parametrizable functions:
- Ext. Off
- Ext. Min
- Ext. Max
- MANUAL (BMS-OFF)
- Key lock
- Switchover between heating/cooling mode
Wilo Net for dual pump management of 2 single pumps, communication of several pumps with each other and pump-remote adjustment via gateway
Signal and display functions
- Display status operation display:
- Setpoint
- Actual delivery head
- Actual volume flow
- Power consumption
- Electric consumption
- Temperatures
- Status display LED: Faultless operation (green LED), pump communication (blue LED)
- Display status of display fault (display red):
- Error codes and error description in full text
- Remedial measures
- Display status of display warning (display yellow):
- Warning codes and description of the warning in full text
- Remedial measures
- Display status process indicator (display blue):
- Pump venting
- Update procedure
- Display BMS communication (display blue):
- Summary of the active BMS parameters (baud rate, address,...)
- Collective fault signal SSM (potential-free changeover contact)
- Collective run signal SBM (potential-free normally open contact)
Data exchange
- Bluetooth interface for wireless data exchange and remote operation of the pump using a smartphone or tablet.
- Serial digital interface Modbus RTU for connecting building automation (BA) via RS485 bus system (possible with Wilo-CIF module Modbus RTU).
- Serial digital interface BACnet MS/TP for connecting building automation (BA) via RS485 bus system (possible with Wilo-CIF module BACnet MS/TP).
Dual pump management (twin-head pump or 2 x single pumps)
- Main/standby operation (automatic fault-actuated switchover/time-sensitive pump alteration)
- Parallel operation (efficiency-optimized peak load cut-in and out)
Equipment
- Various integrated communication interfaces and optionally usable CIF module plug-in position
- 5 cable inlets for connecting the communication interfaces
- Bluetooth interface
- High resolution graphic display with green button and 2 additional buttons
- User-friendly terminal room
- Integrated temperature sensor in the pump housing
- Quick electrical connection with optimized Wilo-Connector including a ½ NPT connection adapter for the power supply
Type key
Example: | Wilo-Stratos MAXO 3x3-40 |
Stratos | High-efficiency pump, electronically controlled |
Single pump | |
3 | Flange size [in] |
3-40 | Continuously variable setpoint height 3 – 40 ft |
Minimum delivery head 3.3 ft | |
Maximum delivery head 39.4 ft | |
at Q = 0 US gpm |
Technical data
- Permissible temperature range 14 °F (-10 °C) to 230 °F (+110 °C)
- Mains connection:
- 1~115 V, 50/60 Hz (depending on type),
- 1~230 V-240 V, 50/60 Hz
- Enclosure: Type 2
- Flange connection: 1.25, 1.5, 2 and 3 inch
- Max. operating pressure: 145 psi
- Insulation class: F
Materials
- Pump housing: grey cast iron with cataphoretic-coated
- Shaft: Stainless steel
- Bearing: carbon
- Impeller: Plastic
Construction
- Smart glandless circulator with EC motor and integrated electronic power adjustment
- Green Button Technology and graphic display
- Motor protection with trip electronics
- Plug connection for functional extension with optional CIF module for building automation (BA)
- Impeller with three-dimensionally curved blades and plastic sealing tube made of carbon fibre composite material
Scope of delivery
- Pump
- Optimized Wilo-Connector with ½ NPT connection adapter
- 5x threaded cable gland M16 x 1.5
- Gaskets for 1.25, 1.5 and 2 inch flange connections
- Installation and operating instructions
Options
NO VALUEAccessories
- PT1000 (B) pipe surface contact sensor (for domestic hot water)
- PT1000 (AA) sensor for installation in immersion sleeve
- Differential pressure sensor
- CIF modules: Modbus RTU, BACnet MS/TP