Wilo-SiFresh
Drinking water circulation with temperature monitoring for maximum hygiene.
Drinking water circulation with temperature monitoring for maximum hygiene.
Circulation, continuous temperature monitoring and water exchange within 72 hours enable the Wilo-SiFresh cold drinking water system to provide the highest standard of drinking water hygiene in accordance with DIN EN 806-2. The compact system has an integrated Wilo-Stratos MAXO-Z and a convenient operating unit with central control for the temperature and water exchange intervals. With only one central flushing station, the effort required for installation and maintenance is comparatively low. The system should be combined with flow-through cooling to maintain the temperature even more efficiently. Depending on the structural conditions and utilisation behaviour, the flushing volume required to maintain the temperature and exchange water can be reduced by up to 90%.
Recommended services
Your advantages
- Continuous temperature monitoring, circulation and individually programmable time intervals for the water exchange ensure highest standard of drinking water hygiene
- Display of temperature data for the last 24 hours and quantities of water drawn for the last 7 days
- Compact system with central control for the temperature, water exchange intervals and easy maintenance
- Easy commissioning via intuitive operating elements, a large display and Green Button Technology
- Optional: can be combined with flow-through cooling for efficient temperature maintenance
- State-of-the-art interfaces that enable integration into the building automation
- Pre-assembled ball valve for shutting off the water circulation for maintenance tasks
Product features
- Full graphic display
- Integrated Stratos MAXO-Z high-efficiency pump with interfaces enabling integration into building automation
- Flush valve for water exchange
- Integrated temperature sensors
- Pre-assembled ball valve
Design
Drinking water circulation system ready for connection with integrated circulator with stainless steel housing and flushing device
Application
Drinking water circulation for hygienic provision and saving of drinking water in connection with flow-through cooling.
Equipment/function
- Menu-prompted operation and display
- Adjustment of max. potable water temperature
- Setting a timed flushing interval
- Integrated temperature sensors for continuous temperature monitoring
- Retrofittable interface modules for communication and integration into the building automation system
Control mode
- Δp-c for constant differential pressure
Optional functions
- Q-Limitmax. for limiting the maximum volume flow
- Q-Limitmin. for limiting the minimum volume flow
- No-Flow Stop (zero-flow-deactivation)
Manual settings
- Setting the related operating parameters
- Pump venting function
- Key lock for disabling the settings
- Function for resetting the factory settings or the saved restoration points (parameter sets)
- Parameterising the binary inputs
- Parameterising the relay output
External interfaces and their functions
2 x digital inputs:
- For potential-free control outputs or switch
- Parametrisable functions:
- Overflow monitoring
- Ext. Off
- Ext. Min
- Ext. Max
- MANUAL (BMS-OFF)
- Key lock
Signal and display functions
- Display status operation display:
- Setpoint
- Actual delivery head
- Actual volume flow
- Power consumption
- Electric consumption
- Temperature
- 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):
- System flush (water exchange)
- 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)
Typekey
Example: | Wilo-SiFresh |
Wilo- | Brand name |
SiFresh | Drinking water circulation system |
Technical data
- Fluid temperature: Drinking water +2 °C ... +65 °C
- Ambient temperature: 0 °C ... +40 °C
- Mains connection 1~230 V, 50/60 Hz
- Screwed connection: Rp ¾"
- Max. operating pressure: 10 bar
Materials
High-efficiency pump:
- Bearing: Carbon-graphite
- Impeller: PPS-GF40
- Pump housing: Stainless steel
- Shaft: 1.4122, DLC-coated
PT1000 temperature sensor immersion sleeves:
- Stainless steel
Solenoid valve:
- Stainless steel
Pipework:
- Stainless steel
Ball valve:
- Stainless steel
Scope of delivery
- Drinking water circulation system ready for connection
- Fixation material
- 2x ball valve
- Installation and operating instructions
Installation and operating instructions
Wilo-SiFresh
| Article Number | 4261502 |
| Edition | 2023-09 |
| Number of pages | 272 |
| Language | de, en, fr, it, nl |
PDF (7 MB)Group Statement
Group Statement REACH
| Edition | 2021-05 |
| Number of pages | 5 |
| Language | language neutral |
PDF (271 KB)CE
CE 2223825-02
| Number of pages | 6 |
| Language | language neutral |
PDF (282 KB)UN38.3
Lithium Battery UN38.3 Test 2025-G000000104
| Number of pages | 1 |
| Language | language neutral |
PDF (372 KB)| Product description | Mains connection | Rated power P2 | Gross weight, approx. m | Article number | Price (excl. VAT) | |
|---|---|---|---|---|---|---|
SiFresh | 1~230 V, 50/60 Hz | 0.26 kW | 28 kg | 4261503 | EUR 4,832.- |