STRATOS-Z

Design

Glandless circulating pump with screwed connection or flange connection, EC motor and automatic power adjustment.

Application

Secondary hot water circulation systems of all kinds, hot-water heating systems of all kinds, air-conditioning, closed cooling circuits, industrial circulation systems

Type key
Example	Wilo-Stratos-Z 40/1-8
Stratos	High-efficiency pump (screw-end or flange-end pump), electronically controlled
Z	Single pump for secondary hot water circulation
40/	Nominal connection diameter
1-8	Nominal delivery head range [m]

Special Features/Product Advantages

• Maximum efficiency thanks to ECM technology
• Front operation and access to terminal room, variable installation positions, display independent of position
• Simple installation due to PN 6/PN 10 combination flanges (with DN 40 to DN 65)
• Corrosion-resistant pump housing made of red brass for systems where oxygen entry is possible
• Automatic adjustment of the pump output in volume-flow-variable secondary hot water circulation systems with thermostatically controlling line shut-off valves
• Manual control mode allows optimum adaptation of the pump output to the system in constant-volume secondary hot water circulation systems
• System expansion by means of retrofittable interface modules for communication: Modbus, BACnet, LON, CAN, PLR etc.
• Remote control via infrared interface (IR stick/IR monitor)

Technical Data

• Permissible temperature range
  • Potable water up to 3.57 mmol/l (20 °dH): 0 °C to +80 °C
  • Heating water: -10 °C to +110 °C
• Mains connection 1~230 V, 50/60 Hz
• Protection class IPX4D
• Screwed connection or flange connection (depending on type) Rp 1 to DN 65
• Max. operating pressure, standard version: 6/10 bar (special version: 16 bar)

Equipment/Function



Operating Modes

• Manual control mode (n=constant)
• Δp-c for constant differential pressure
• Δp-v for variable differential pressure
• Δp-T for temperature-controlled differential pressure (programmable via IR-Stick, IR-Monitor, Modbus, BACnet, LON or CAN)

Manual Functions

• Operating mode setting
• Differential pressure setpoint setting
• Setting automatic setback operation
• Pump ON/OFF setting
• Speed setting (manual control mode)

Automatic Functions

• Variable power adjustment depending on the operating mode
• Automatic setback operation
• Deblocking function
• Soft start
• Full motor protection with integrated trip electronics

External Control Functions

• "Overriding Off" control input (possible with Stratos IF-Modules)
• "Overriding Min" control input (possible with Stratos IF-Modules)
• "Analogue In 0 - 10 V" control input (remote speed adjustment) (possible with Stratos IF-Modules)
• "Analogue In 0 - 10 V" control input (remote setpoint adjustment) (possible with Stratos IF-Modules)

Signal and Display Functions

• Collective fault signal (potential-free NC contact)
• Individual run signal (potential-free NO contact) (possible with Stratos IF-Modules)
• Fault signal light
• LC display for indication of pump data and fault codes

Data Exchange

• Infrared interface for wireless data exchange with IR-Stick/IR-Monitor
• Modbus RTU serial digital interface for connection to building automation BA via RS485 BUS system (possible with Stratos IF-Modules)
• BACnet serial digital interface MS/TP slave for connection to building automation BA via RS485 BUS system (possible with Stratos IF-Modules)
• CAN serial digital interface for connection to building automation BA via CAN BUS system (possible with Stratos IF-Modules)
• LON serial digital interface for connection to a LONWorks network (possible with Stratos IF-Modules)
• PLR serial digital interface for connection to BA via Wilo interface converter or company-specific coupling modules (possible with Stratos IF-Modules)

Dual Pump Management (Double Pump or 2 x Single Pump)

• Main/standby operation (automatic fault-actuated switchover/time-dependent pump cycling): various combinations with Stratos IF-Modules (accessories) possible
• Paralel operation (efficiency-optimised peak load activation and deactivation): various combinations with Stratos IF-Modules (accessories) possible

Equipment

• Wrench attachment point on pump body (for threaded pipe union pumps with P2≤100 W)
• For flange-end pumps: Flange versions
  • Standard version for DN 40 to DN 65 pumps: PN 6/10 combination flange (PN 16 flange according to EN 1092-2) for PN 6 and PN 16 counter flanges,
  • Special version for DN 40 to DN 65 pumps: PN 16 flange (according to EN 1092-2) for PN 16 counter flange,
• Plug-in position for optional extension with Wilo-IF-Modules
• Thermal insulation as standard

Materials

• Pump housing made of red brass (30/1-12 and 40/1-8 types, also grey cast iron)
• Impeller: Plastic
• Shaft: stainless steel
• Bearing: Carbon, synthetic resin impregnated

Scope of delivery

• Pump
• Including thermal insulation
• Including seals for threaded connection (loose)
• Including washers for flange screws (for nominal connection diameters DN 40 - DN 65)
• Including installation and operating instructions

Options

• Special versions for operating pressure PN 16

Accessories

• Screwed connection for threaded connection
• Adapter fittings
• IR-Stick
• IR-Monitor
• Stratos IF-Modules: Modbus, BACnet, CAN, PLR, LON, DP, Ext. Off, Ext. Min., SBM, Ext. Off/SBM