GDA111, Wilo pump GDA112, Grundfos pump
GDA111, Wilo pump GDA112, Grundfos pump

Circulation unit

GDA100

The ESBE series GDA100 is a direct supply circulation unit designed for applications, where an energy transport in the most efficient way is required. Equipped with two shut-off valves with thermometers, check valve, high class insulation shell and high efficiency circulation pump. You can be sure that ESBE delivers the best circulation unit for both your economy as well as for the environment. It is simply the most efficient direct supply unit available. When designing the circulation unit product line the focus at ESBE has been to simplify installation. This goes through the whole product from pre assembly, mounting brackets and insulation to packaging design.
  • High efficiency circulation pump
  • High class insulation shell of hydronic parts
  • Pre-tested and ready to use
  • One size fits all – auto adapt function on board

Product range

GDx111 front_RGB_B-01
GDA111
GDx111 side_RGB_A-01
GDA112 front_B-01
GDA112
GDA112 side_B-01
Series GDA111
Art.no.ReferenceDNPumpConnection IConnection JWeight kgNoteNTCNTC = National Trade Code
61000100GDA11125Wilo 25/6G 1"G 1½"4.8  
61000200GDA11132Wilo 25/7.5G 1¼"G 1½"5.4  
Series GDA112
Art.no.ReferenceDNPumpConnection IConnection JWeight kgNoteNTCNTC = National Trade Code
61000300GDA11225Grundfos 25-50G 1"G 1½"4.9  
61000400GDA11232Grundfos 25-70G 1¼"G 1½"5.5  

Installation support

Operation
GDA100_RGB_A-01
Installation examples
Appl_Circ Unit_Direct-01
Appl_Circ Unit_Multi_HS-01
Installation instruction GDA100
Installation instruction GDA100 (EE, FI, RU, CZ)
Installation instruction GDA100, Wilo Pump
Installation instruction GDA100, Grundfos Pump

Technical data

Technical data
Pressure class: PN 6 
Media temperature, max.: +110 °C
min.: 0 °C
Ambient temperature, max.: +50 °C
min.: 0 °C
Working pressure: 0.6 MPa
Connections, Internal thread (G): ISO 228/1 
External thread (G): ISO 228/1 
Insulation: EPP λ 0.036 W/mK 
Media, Heating water  (in accordance with VDI2035) 
Water/Glycol mixtures, max. 50 %
(above 20% admixture, the pump data must be checked)  
Water/Ethanol mixtures, max. 28 %
Material, in contact with water: Components of Brass, Cast iron, Steel 
Sealings material of: PTFE, Aramid fibre, EPDM 
Conformity: PED 2014/68/EU, article 4.3 
The integrated Circulation pump: Power supply: 230±10% VAC, 50/60Hz 
Power consumption - Wilo 25/6: 3-45 W
Power consumption - Wilo 25/7.5: 3-76 W
Power consumption - Grundfos 25-50: 2-34 W
Power consumption - Grundfos 25-70: 2-53 W
Enclosure rating: IP X4D 
Insulation class: F 
Characteristics: See diagram 
Conformity CE_A-01
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2011/65/EU
ErP2015_A-01
ErP2009/125/EC
ErP2015
$name
EnEV2014
Circulation pump Wiring LTC100_A-01
The circulation pump should be preceded by a multi-pole contact breaker in the fixed installation.
Available pressure, Wilo pump GDx Wilo_dimensioning_verB_GB-01
Dimensioning, Pump Capacity diagram
Example: Start with the heating demand of heating circuit (e.g. 25 kW) and move horizontally to the right in the diagram to the Δt = 15°C (temperature difference between flow and return of the heating circuit). Next go up and find working point and read the available pressure of the pump on the left – ∆p = 48 kPa.
Available pressure, Grundfos pump GDx Grundfos_dimensioning_verB_GB-01

Accessories and spare parts

Options
ImageArt.no.ReferenceDesignationNational trade codeNoteData sheetInstructions manual

GMA121

Manifold for 2 circulation units, without integrated hydraulic separator function.
66000100GMA121Manifold GMA121 Manifold for 2 units.

GMA131

Manifold for 3 circulation units, without integrated hydraulic separator function.
66000200GMA131Manifold GMA131 Manifold for 3 units.

GMA221

Manifold for 2 circulation units, with integrated hydraulic separator function.
66000300GMA221Manifold GMA221 Manifold for 2 units, with integrated hydraulic separator function.

GMA231

Manifold for 3 circulation units, with integrated hydraulic separator function.
66000400GMA231Manifold GMA231 Manifold for 3 units, with integrated hydraulic separator function.
Spare parts
ImageArt.no.ReferenceDesignationNational trade codeNoteData sheetInstructions manual

GSP901

ESBE GSP901 Pump RKA 25/6 Wilo
67000100GSP901Pump RKA 25/6 Wilo DN25 

GSP901

ESBE GSP901 Pump RKA 25/7.5 Wilo
67000300GSP901Pump RKA 25/7.5 Wilo DN32 

GSP901

ESBE GSP901 Pump UPM3 25-50 Grundfos
67000400GSP901Pump UPM3 25-50 Grundfos DN25 

GSP901

ESBE GSP901 Pump UPM3 25-70 Grundfos
67000500GSP901Pump UPM3 25-70 Grundfos DN32 

GSP903

ESBE GSP903 Thermometer upgrade set, 2 pcs/package
67000600GSP903Thermometer upgrade set, 2 pcs/package    

GSP911

ESBE GSP911 Ball valves incl thermometer DN 25, 2 pcs/package
67003400GSP911Ball valves incl thermometer DN 25, 2 pcs/package DN25  

GSP911

ESBE GSP911 Ball valves incl thermometer DN 32, 2 pcs/package
67003500GSP911Ball valves incl thermometer DN 32, 2 pcs/package DN32  

GSP910

ESBE GSP910 Insulation circulation unit DN 25/32
67004400GSP910Insulation circulation unit DN 25/32    

Download area

Find here direct related product information for download. If you don’t find your specific need here please look further into below mentioned "Quick links" or this website's “Search” and “Support” area.
Data sheet GDA100
Installation instruction GDA100
Installation instruction GDA100 (EE, FI, RU, CZ)
Installation instruction GDA100, Wilo Pump
Installation instruction GDA100, Grundfos Pump
Spare Parts Circulation units
2D Image GDA111
2D Image GDA112
3D drawing (stp file) GDA111, DN25
3D drawing (stp file) GDA111, DN32
3D drawing (stp file) GDA112, DN25
3D drawing (stp file) GDA112, DN32

Related products

GMA121

GMA100

Series GMA100 is manifolds for 2 or 3 circulation units including insulation according to EnEV2014 and wall brackets.
GMA121
GMA221

GMA200

Series GMA200 is manifolds for 2 or 3 circulation units including integrated hydronic junction, insulation according to EnEV2014 and wall brackets.
GMA221

Related applications

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