High efficiency circulator

Published by Wilo Portugal, Lda

Infrastructure type(s)
Hospitais; Pools; Hotels; Schools; Sports facilities; Child care, elderly care and other social services facilities; Shopping centers; Other

Intervention domain(s)
Centralised Technical Building Systems; Domestic Hot Water; Heating and/or Cooling; Water Heating; Renewable Energy; Building Technical Management; Building Energy Management; Building (Water) Use Devices; Water Efficiency; Building Maintenance Management; Energy Efficiency; Construction; Building design

Keyword(s)
Water efficiency Heating Domestic hot water Efficiency Solar Energy Renewable energy Pool heating Low energy consumption Solar thermal Chillers Cold Heat Heat recovery Cogeneration Absorption Building Technical Management Technical management Energy efficiency Water-energy nexus Building installations Solar heating Efficient solar energy Heating, ventilation, and air conditioning (HVAC) Non-residential buildings Energy consumption Electricity Energy audit Water audit Construction Energy certification Building design

Description

Premium smart-pump Wilo-Stratos MAXO
High-efficiency inline glandless pump with EC motor and electronic power adjustment. Can be used for cold water, heating water and water/glycol mixtures. Energy efficiency index (EEI) between ≤ 0.17 and ≤ 0.19 depending on pump type.

Control modes:
- Permanent, automatic performance adaptation to system requirements without setpoint specification Wilo Dynamic Adapt plus (factory setting). Up to 20% energy savings compared to dp-v control mode.
- Constant temperature (T-const.)
- Constant differential temperature (dT-const.)
- Needs-based volume flow optimisation of the feeder pump through connectivity and communication between multiple pumps (Multi-Flow Adaptation).
- Constant volume flow (Q-const.)
- Differential pressure control (dp-c) to a remote point in the pipe network (index circuit evaluator)
- Constant differential pressure (dp-c)
- Variable differential pressure (dp-v) with the option to set the nominal duty point
- Constant speed (n-const.)
- User-defined PID control

Functions:
- Heat quantity measurement
- Cooling quantity measurement
- Pump automatically deactivates when no flow is detected (No-Flow Stop)
- Switchover between heating and cooling mode (automatic, external or manual)
- Adjustable volume flow limiter using the Q-Limit function (Q min. and Q max. )
- Operating modes of twin-head pumps: Efficiency-optimised parallel operation for dp-c and dp-v, main and standby operation
- Ability to save and restore configured pump settings (3 restoration points)
- Fault and warning messages shown in plain text with advice on resolving the issue
- Pump venting function for automatic venting of the rotor chamber
- Automatic setback operation
- Automatic deblocking function and integrated full motor protection
- Dry-running detection

Display:
- Control mode
- Setpoint
- Volume flow
- Temperature
- Power consumption
- Electric consumption
- Active influences (e.g. STOP, No-Flow Stop)

Version:
- 2 configurable analogue inputs: 0–10 V, 2–10 V, 0–20 mA, 4–20 mA and commercially available PT1000; +24 V DC power supply
- 2 configurable digital inputs (Ext. OFF, Ext. Min, Ext. Max, heating/cooling, manual override (uncoupled from building automation), operation lock (key lock and remote operation configuration protection))
- 2 configurable signal relays for operational and fault messages
- Slot for Wilo-CIF modules with interfaces for building automation (BA) (optional accessories: Modbus RTU CIF Module, BACnet MS/TP, LON and PLR)
- Wilo Net as a Wilo system bus for communication between Wilo products, e.g. Multi-Flow Adaptation; double pump operation and Wilo-Smart Gateway
- Integrated temperature sensor
- Automatic emergency operation with definable pump speed for exceptional circumstances, e.g. bus communication or sensor value malfunction
- Graphic colour display (4.3 inches) with one-button manual operation
- Use the Wilo-Assistant app to read and set operating data and –among other things– set up a commissioning protocol through the Bluetooth interface (no further accessories required)
- Integrated double pump management (double pumps are prewired) when using 2 single pumps as double pump unit (connection via Wilo Net)
- Cable break detection when using an analogue signal (in connection with 2–10 V or 4–20 mA)
- Outdoor installation with weather protection possible in accordance with the installation and operating instructions
- Pre-set date and time
- Thermal insulation shell for heating applications

Scope of delivery
- Pump
- Optimised Wilo-Connector the same for all sizes
- 2x threaded cable connection M16 x 1.5
- Washers for flange screws M12 and M16 (for nominal connection diameters DN 32 to DN 65)
- 2x gaskets for threaded connection
- Thermal insulation shell
- Concise Installation and operating instructions

Optional accessories:
- ClimaForm cold insulation to avoid the formation of condensate
- CIF module: Modbus RTU, BACnet MS/TP, LON, PLR
- PT 1000 (B) pipe contact sensor (for domestic hot water)
- PT 1000 (AA) sensor for installation in immersion well
- Differential pressure sensor