Return temperature unit, Thermostatic mixing function

GST200

  • Thermostatic constant temperature control
  • Desired mixing temperature setting between 50°C and 75°C
  • Product available in DN25
  • High efficiency circulation pump
  • High class insulation shell
  • Pretested and ready to use
  • Compact design

The ESBE series GST200 is a return temperature unit designed for heating systems with solid fuel heating source. Equipped with two shut-off valves with thermometers, check valve, high class insulation shell and high efficiency circulation pump.

The GST200 is delivered with a 3-way thermostatic load valve for constant temperature control of the boiler circuit. The thermostatic load valve has adjustable temperature setting in the range of 50°C – 75°C.

Product range

GST240

GST241_design2.png
GST241_Design2_A_Front.png
GST241_Design2_A_Side.png
Art.no. Reference DN Pump Temperature range [°C] Connection I Connection J Weight [kg] Note
61121200 GST241 25 Wilo PARA 25-130/6 50‒70 G 1" G 1½" 5,6 Replaces 61120200
Installation support

Install ESBE Circulation unit

Operation

Operation

Installation examples

Installation examples
The return temperature unit series GST200 with boiler or accumulation tank as return temperature control and protection device for solid fuel boilers.

In both cases the GST200 secures that the boiler gets up to a high combustion temperature to ensure the lowest emission, high efficiency of the boiler reduce tarring and increase life span of the boiler (preventing condensation). The benefit of using the unit in these applications is the protection of the boiler against condensation, increasing the life span of the boiler and providing the right temperature through the whole combustion process.

Documents

Technical data

Technical data

Pressure class: PN 10
Working pressure: 1,0 MPa
Insulation: EPP λ 0,036 W/mK
EEI (Energy Efficiency Index), circulation pump: ≤0,20
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, max.: +100 °C
Media temperature, min.: +5 °C
Ambient temperature, max. : +58 °C
Ambient temperature, min.: 0 °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

Integrated valve

ESBE VTC422, DN25-4,5 50-70°C
max. Differential pressure drop: 100 kPa (1 bar)
Temperature range: 50 - 70°C
Leakrate in % of flow: A-AB: Tight sealing;
B-AB: Tight sealing
Rangeability Kv/Kv min, A-AB: 100

Conformity

PED 2014/68/EU, article 4.3 /
SI 2016 No. 1105
LVD 2014/35/EU
EMC 2014/30/EU
RoHS3 2015/863/EU
ErP 2009/125/EU
SI 2016 No. 1101
SI 2016 No. 1091
SI 2012 No. 3032
SI 2010 No. 2617
EnEV2014

Dimensioning

Please see Data sheet

Wiring

Please see Installation instruction
Accessories and spare parts

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

Spare parts

Art No. Reference Designation Note Data sheet Instruction manual
57080600 57080600 VTC942 ESBE VTC942 Exchange kit series VTC422, 50 - 70°C VTC400 download download
67003400 67003400 GSP911 ESBE GSP911 Ball valves incl thermometer DN 25, 2 pcs/package DN25 download download
67005200 67005200 GSP951 ESBE GSP951 Pump Wilo PARA 25/6 DN25 download download
Download area

Download area

Type Preview Download
Data sheet GST200 download
Installation instruction GST200 download
Installation instruction GST200, Wilo Pump (de, en, fr) download
Installation instruction GST200, Wilo Pump (cs, sk) download
Certificate Declaration of Conformity, GST200 download
Certificate Declaration of Conformity UKCA, GST200 download
Certificate Building Product Declaration BPD3, GST200 download
Certificate EAC certificate (RU) download
Image GST241, high res download
2D Image GST241 download
3D drawing (stp file) GST241, DN25 download
Applications

Applications

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

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

Products

GST200