Circulation unit, Direct supply

GDA200, GDA300

  • 3 different high efficiency circulation pumps
  • High class insulation shell
  • Pretested and ready to use
  • Compact design
  • Available in 3 sizes: DN20, DN25, DN32

The ESBE series GDA200 and GDA300 are direct supply circulation units 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. 
The direct groups series GDA200 are available in DN25 and DN32 with either a Wilo or Grundfos pump. Series GDA300, with very compact dimensions, is available in DN20 and comes with a Wilo pump with PWM control signal.
 

Product range

GDA211

Art.no. Reference DN Pump Connection I Connection J A [mm] Weight [kg] Note
61001100 GDA211 25 Wilo PARA 25/6 G 1" G 1½" 146 5,2 Replaces 61000100
61001200 GDA211 32 Wilo PARA 25/8 G 1¼" G 1½" 157 5,3 Replaces 61000200

GDA212

Art.no. Reference DN Pump Connection I Connection J A [mm] Weight [kg] Note
61001300 GDA212 25 Grundfos UPM3 AUTO 25-50 G 1" G 1½" 141 5,1 Replaces 61000300
61001400 GDA212 32 Grundfos UPM3 AUTO 25-70 G 1¼" G 1½" 141 5,2 Replaces 61000400

GDA311

Art.no. Reference DN Pump Connection I Connection J Weight [kg] Note
61003200 GDA311 20 Wilo PARA STG 15/8 G ¾" G 1" 3,9 Replaces 61003100
Installation support

Operation

Operation

Installation examples

Installation examples
The application shows central heat distribution from a accumulation tank (so called central pump) across the whole building to different zones, for example to each floor level. The main function of the direct group (GDx) is to supply the heating water with unchanged flow temperature to the other circulation units with mixing function. In this example the GDx is used in bigger heating installation where additional central supply pump is needed to overcome the system pressure losses.
The application shows a central heat distribution with boiler and potable water preparation, for example a boiler room. The system is divided into zones, for example in different buildings or floors. The main function of the direct group (GDx) is to supply the heating water with unchanged flow temperature to the heat receiver, such as a potable water tank, radiators or to the other circulation units with mixing function.
Technical data

Technical data

Pressure class: PN 10
Working pressure: 1,0 MPa
Insulation: EPP λ 0,036 W/mK
Media, Heating water: in accordance with VDI2035
Media, Water/Glycol mixtures: max. 50 % ; water / glycol mixtures are affecting the pump performance. In case of Applications where water / glycol mixtures are used, pump performance should be considered.
Media temperature - Series GDA211: min. +5°C, max. +100°C
Media temperature - Series GDA212: min. +5°C, max. +110°C
Media temperature - Series GDA300: min. +5°C, max. +100°C
Ambient temperature - Series GDA211: min. 0°C, max. +58°C
Ambient temperature - Series GDA212: min. 0°C, max. +70°C
Ambient temperature - Series GDA300: min. 0°C, max. +58°C
Connections, Internal thread (G): ISO 228/1
Connections, External thread (G): ISO 228/1
Material, in contact with water Components: Brass, Cast iron, Steel
Sealing materials: PTFE, Aramid fibre, EPDM

Integrated pump

Wilo PARA 25-130/6-43/SC
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 3 — 43 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump <0,20
Wilo PARA 25-130/8-75/SC
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 10 — 75 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump <0,21
Grundfos UPM3 AUTO 25-50 130
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 4 — 33 W
Enclosure rating IP44
EEI (Energy Efficiency Index), circulation pump <0,20
Grundfos UPM3 AUTO 25-70 130
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 2 — 52 W
Enclosure rating IP44
EEI (Energy Efficiency Index), circulation pump <0,20
Wilo PARA STG 15-130/8-60/0
Power supply 230 ± 10% V AC, 50/60 Hz
Power consumption 2 — 60 W
Enclosure rating IP X4D
Insulation class F
EEI (Energy Efficiency Index), circulation pump <0,20

Conformity

Conformity
LVD 2014/35/EU
EMC 2014/30/EU
RoHS3 2015/863/EU
PED 2014/68/EU, article 4.3
ErP2015
EnEV2014

Dimensioning

Please see Data sheet

Wiring

Please see Installation instruction
Accessories and Spare Parts

Spare parts

Art No. Reference Designation Note Data sheet Instruction manual
67003300 67003300 GSP933 ESBE GSP933 Ball valves incl thermometer DN20 G¾", 2 pcs/package DN20, G¾" download download
67003800 67003800 GSP933 ESBE GSP933 Ball valves incl thermometer DN20 G1", 2 pcs/package DN20, G1" download download
67003400 67003400 GSP911 ESBE GSP911 Ball valves incl thermometer DN 25, 2 pcs/package DN25 download download
67004000 67004000 GSP911 ESBE GSP911 Ball valves incl thermometer DN 32, 2 pcs/package DN32 download download
67005200 67005200 GSP951 ESBE GSP951 Pump Wilo PARA 25/6 DN25 download download
67005300 67005300 GSP951 ESBE GSP951 Pump Wilo PARA 25/8 DN32 download download
67005400 67005400 GSP952 ESBE GSP952 Pump Grundfos UPM3 AUTO 25-50 DN25 download download
67005500 67005500 GSP952 ESBE GSP952 Pump Grundfos UPM3 AUTO 25-70 DN32 download download
67005600 67005600 GSP932 ESBE GSP932 Pump Wilo STG 15/8 DN20 download download

Options

Art No. Reference Designation Note Data sheet Instruction manual
66001100 66001100 GMA411 ESBE GMA411 Hydraulic separation for 1 circulation unit. download download
66001200 66001200 GMA421 ESBE GMA421 Manifold for 2 circulation units, without integrated hydraulic separator function. download download
66001300 66001300 GMA431 ESBE GMA431 Manifold for 3 circulation units, without integrated hydraulic separator function. download download
66001400 66001400 GMA441 ESBE GMA441 Manifold for 4 circulation units, without integrated hydraulic separator function. download download
66001500 66001500 GMA451 ESBE GMA451 Manifold for 5 circulation units, without integrated hydraulic separator function. download download
66001600 66001600 GMA521 ESBE GMA521 Manifold for 2 circulation units, with integrated hydraulic separator function. download download
66001700 66001700 GMA531 ESBE GMA531 Manifold for 3 circulation units, with integrated hydraulic separator function. download download
66000600 66000600 GMA331 ESBE GMA331 Manifold for 3 circulation units, without integrated hydraulic separator function. DN20 download download
66000500 66000500 GMA321 ESBE GMA321 Manifold for 2 circulation units, without integrated hydraulic separator function. DN20 download download
Download area

Download area

Type Preview Download
Data sheet GDA200, GDA300 download
Installation instruction GDA200 (en) download
Installation instruction GDA300 (en) download
Installation instruction GDA200 (DN25/DN32), Wilo Pump download
Installation instruction GDA200 (DN25/DN32), Grundfos Pump download
Installation instruction GDA300 (DN20), Wilo Pump download
Certificate Declaration of Conformity, GDAx00 download
Certificate Declaration of Conformity UK CA, GDAx00 download
Certificate Building Product Declaration, GDA200 download
Certificate Building Product Declaration, GDA300 download
Image GDA211, high res download
Image GDA212, high res download
Image GDA311, high res download
2D Image GDA211 download
2D Image GDA212 download
2D Image GDA311 download
3D drawing (stp file) GDA211, DN25 download
3D drawing (stp file) GDA211, DN32 download
3D drawing (stp file) GDA212, DN25 download
3D drawing (stp file) GDA212, DN32 download
3D drawing (stp file) GDA311, DN20 download
Applications

Applications

Direct circulation unit intended to transport energy in the most efficient way.

Circulation unit to optimize energy transportation in domestic hot water application.

Return temperature unit designed for solid fuel applications, where a return temperature control is required.

Heat pump application with Circulation units designed for heating circuits where control by weather or indoor / outdoor temperature and pump control is required. 

Return temperature unit designed for solid fuel applications, where a return temperature control is required.

Products

GST200