• Intuitive operation through application setting with Setup Guide combined with new display and control button with green button technology.
• Maximum drinking water hygiene and energy efficiency thanks to the new, innovative, intelligent T-const control function.
• Optimal hygiene maintenance thanks to thermal disinfection detection.
• Latest communication interfaces (e.g. Bluetooth) for the connection to mobile devices and direct networking of the pumps via the Wilo Net for the control of several pumps.
• Maximum convenience in terms of electrical installation thanks to the clear and ergonomic terminal box and the optimized Wilo-Connector.

Brilliant intelligence excellence and unique quality.

The Wilo-Stratos MAXO-Z, which was specially developed for drinking water applications, combines the innovative features of the Wilo-Stratos MAXO with a stainless steel housing. The wear-resistant and hygienic material distinguishes it from the other hot water circulators on the market.

Type

Glandless circulation pump with threaded connection or flange connection, EC motor with integrated electronic power control

Application

All types of drinking water circuits, all types of hot water heating systems, air conditioning systems and closed cooling circuits, industrial circulation systems

Equipment/function

Areas of use

The pump enables precise adjustment of the control method to the specific application conditions of a given installation (e.g. radiator, underfloor heating, ceiling cooling) while operating at the highest efficiency.

Heating

• Radiator
• underfloor heating;
• Ceiling heater;
• Air heater
• Chimney
• heat exchanger,

Cooling

• Ceiling Cooling
• Floor cooling
• Air conditioners
• Chimney
• heat exchanger,

Combination of heating and cooling

• Automatic switching
• Depending on the selected application, the following control methods are available:

Modes of control

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

Optional functions

• Q-Limitmax. to limit the maximum flow
• Q-Limitmin. to limit the minimum flow
• No-Flow Stop (shut-off at no flow)
• Automatic night setback
• Pessimum point control (Δp-c with external real-time sensor)
• Thermal disinfection detection
• Variable slope characteristics Δp-v

Manual settings

• Selecting the application via the Setup Guide
• Setting of the respective operating parameters
• Nominal operating point: direct entry of the calculated operating point at Δp-v
• Status display
• Setting and resetting the energy meter (amount of heat and cooling)
• Pump ventilation function
• Key lock for locking the settings
• Function for resetting to factory settings or saved restore points (parameter sets)
• Input of analog input parameters
• Input of binary input parameters
• Inputting relay output parameters

Automatic control

• Demand-optimized power control for energy-efficient operation depending on the mode of operation
• Downstream operation identification
• No-flow shutdown (No-Flow Stop)
• Soft start
• Automatic troubleshooting procedures (e.g. unblocking function)
• Heating/cooling changeover
• Full motor protection with integrated electronic shutdown

External control inputs and functions

2 analog inputs:

• Signal types: 0-10 V, 2-10 V, 0-20 mA, 4-20 mA, PT1000
• Application: Remote set point control for each control method (except Multi-Flow Adaptation), sensor inputs for temperature, differential pressure or 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 control system-OFF)
  • Key lock
  • Heating/cooling changeover

Wilo Net for control of twin pumps (two single pumps), communication of several pumps between each other and remote pump control via gateway

Alarms and indication

• Display status - indication of the operating mode:
• Setpoint value
• Current head value
• Actual flow
• power consumption
• Power consumption
• Temperatures

Status 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
• Corrective measures
• Display status - Warning indication (display color yellow):
• Warning codes and description in full text
• Corrective action
• Display status - process indication (display color blue):
• Pump venting
• Process update
• Display Status - Communication with CPS (display color blue):
• Summary of active SSM parameters (baud rate, address...)
• Generalized SSM Fault Indication (potential free change-over contact)
• Generalized Service Mode Message (SBM) (potential free normally open contact)

Data exchange

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

Equipment

• For pumps with flange connection: Flange version
  • Standard version for pumps DN 32 to DN 65: Combination flange PN 6/10 (flange PN 16 as per EN 1092-2) for counter flanges PN 6 and PN 16
  • Standard version for pumps DN 80/DN 100: Flange PN 6 (designed PN 16 as per EN 1092-2) for counter flange PN 6
  • Special version for pumps DN 32 to DN 100: Flange PN 16 (acc. to EN 1092-2) for counter flange PN 16.
• Numerous integrated communication interfaces and optional CIF module connector
• 5 cable entries for connection of communication interfaces
• Bluetooth interface
• High resolution graphic display with green button and 2 push buttons
• Convenient terminal box
• Integrated temperature sensor
• Thermal insulation for pumps in heating systems as standard
• Quick electrical connection with optimized Wilo-Connector for power supply