• Energy savings due to increased system efficiency with Q-Limit function (flow limitation)
• Improved energy efficiency index EEI ≤0.20 for all single pumps
• Optimised display for improved readability and control
• Space-saving installation due to compact design and position-independent LCD display
• Modular concept for connection to all common bus systems (e.g. Modbus, BACnet, CAN, LON, PLR)
• Proven quality and reliability
• Withdrawal program
• After 19 years of success, the Wilo-Stratos high-efficiency pump will be completely removed from the product range by the end of March 2020 and replaced by the new Wilo-Stratos MAXO smart pump. The new Wilo-Stratos MAXO pump technology will continue the success of the Stratos series.

Type
Glandless circulation pump with threaded connection or flange connection, EC motor with automatic speed control.

Application

• All hot water heating systems, air-conditioning systems, closed cooling circuits, industrial circulation systems.
• Equipment/function

Modes of operation

• Manual operation (n = constant)
• Δp-c for constant differential pressure
• Δp-v for variable differential pressure
• Δp-T for differential pressure dependent on temperature control (programmable via IR-Stick, IR-Monitor, Modbus, BACnet, LON or CAN)
• Q-Limit to limit max. flow (can only be set on the IR-Stick)

Manual control

• Setting of operating modes
• Setting the flow rate value
• Setting for automatic speed reduction mode
• Pump ON/OFF setting
• Speed setting (manual switch-over)

Automatic control

• Infinitely variable speed control according to mode of operation
• Automatic downmilling operation
• Lockout function
• Soft start
• Full motor protection with integrated electronic shutdown

External control

• Priority off control input (possible with Stratos IF-modules)
• Minimum power priority input (available with Stratos IF-modules)
• Control input "Analog In 0 - 10V" (remote speed switching), possible with Stratos IF-modules
• Control input "Analog In 0 - 10 V" (remote setpoint adjustment), possible with Stratos IF-modules

Alarms and display

• Generalized fault indication (potential free NO contact)
• Separate fault indication (potential free normally open contact), possible with Stratos IF-Modules
• Lighted fault indicator
• LCD display for the indication of pump parameters and error codes

Data exchange

• Infra-red interface for wireless data exchange with IR-Stick/IR monitor
• Modbus RTU serial digital interface for connection to a building automation system via RS485 bus system (possible with Stratos IF-modules)
• BACnet MS/TP Slave serial digital interface for connection to a building automation system via RS485 bus system (possible with Stratos IF-modules).
• CAN serial digital interface for connection to a building automation system via a bus system (possible with Stratos IF-modules).
• LON serial digital interface to connect to a LONWorks network (available with Stratos IF-Modules)
• PLR serial digital interface for connection to a building automation system via a Wilo interface converter or special communication modules (available with Stratos IF-Modules)

Twin pump control (twin pump or two single pumps)

• Main/standby operation (automatic switchover in the event of malfunction/pump timer operation): various combinations with Stratos IF-Modules (accessories) possible
• Dual pump operation (switch-on second pump during peak demand with efficiency optimisation): various combinations with Stratos IF-Modules (accessories) possible

Accessories

• Keyed casting on pump casing (for pumps with threaded pipe connection P2< 100 W)
• 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
• Socket for the optional addition of Wilo IF-Modules
• Thermal insulation for pumps used in heating systems as standard