Grundfos Hydro booster HYDRO MULTI-E 3 CRE 5-9

GRUNDFOS Hydro Multi-E booster sets are designed for the transfer and pressure boosting of clean water in
waterworks, blocks of flats, hotels, industry, hospitals, schools, etc.
GRUNDFOS Hydro Multi-E booster set consists of 2 to 4 CRE pumps coupled in parallel and mounted on a common
base frame provided with all the necessary fittings.
Hydro Multi-E is mounted on a common base frame made of electro galvanized steel.
On the suction side are fitted a suction manifold of stainless steel (AISI 304), a pressure switch for dry running
protection and an isolating valve.
On the discharge side of the pumps are fitted a non-return valve, an isolating valve, a pressure gauge, pressure
transmitter, a diaphragm tank and a discharge manifold of stainless steel (AISI 304),
The Hydro Multi-E is fitted with an on/off-switch for the supply voltage.
The Hydro Multi-E is designed for maintaining a constant pressure regardless of flow changes and fluctuation.
The internal PI-controller regulates the number of running pumps and the speed of the pumps according to the
required flow.
The system can be operated directly on the panel of any of the pumps or via Grundfos GO (available as accessory)
Besides the system features:
2 Digital outputs
2 Digital inputs (one used for dry run protection)
2 Analogue inputs (one used for discharge pressure sensor)
Multi-Master functionality
2 Limit functions
Set-point influence function
Pipe filling function
High Efficient PM motors
When delivered, the GRUNDFOS Hydro Multi-E booster set is factory tested and ready for operation.