ESBE GDA311 Series, Quick Start Manual

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ESBE SYSTEM UNITS

CIRCULATION UNIT 

DN20

SERIES

FUNCTION

ESBE  
GDA311

Direct supply

Circulation unit intended for direct  
supply of heating.

ESBE  
GRA311

Mixing function

With Actuator ARA ready and 
mounted on the Circulation unit.

ESBE  
GFA311

Fixed temperature

With a Thermostatic mixing valve 
VTA ready and mounted on the 
Circulation unit. 

Series and Function • General/Safety

Hydraulic Installation • Electric Installation • Commissioning 

Circulation pump, operation 
mode WILO

WILO Faults, Causes and Remedies

How to use the information leaflet  • Maintenance 

PAGE CONTENT

2

3

4 

5

5

GENERAL/SAFETY

LVD 2014/35/EU

 EMC 

2014/30/EU

 RoHS 

2011/65/EU

PED 2014/68/EU, article 4.3

Max. operating pressure: PN 6

This instruction manual is an essential component of the product. Read the 
instructions and the warnings carefully as they contain important information 
about a safe installation, usage and maintenance.  

This product can be used only for the circulation of water and water/glycol in 
heating or cooling installations. 

 INSTALLATION EXAMPLE 

All piping schematics are general representations

The producer won´t be responsible for damages caused by wrong usage or 
unrespect of the instructions given in this manual.

The mounting of the unit must be performed by a qualified professional and in 
compliance with local/regional laws. This manual refers to standard products. 
Different versions or functions are available.

At mounting - pay attention and follow common practice and general safety norms 
for the use of machineries, pressurized equipment and at high temperatures.  

For electrical components integrated into this product copies of corresponding 
CE declaration are part of this instruction. 

Actuator/Controller

Circulation pump

Wilo

We reserve the right to modify or improve the product, its technical data and 
literature at any time and without notice.