Circulation unit, Fixed temperature
GFA100
- Thermostatic constant temperature control
- Adjustable temperature setting
- High class insulation shell
- High efficiency circulation pump
The ESBE series GFA100 is a circulation mixing unit designed for heating circuits, where a constant temperature control is required. Equipped with two shut-off valves with thermometers, check valve, high class insulation shell and high efficiency circulation pump. The GFA100 is delivered with a 3-way thermostatic mixing valve for constant temperature control of the heating circuit. The thermostatic mixing valve has adjustable temperature setting.
Product range
GFA111
| Art.no. | Reference | DN | Pump | Temperature range [°C] | Connection I | Connection J | Weight [kg] |
| 61020100 | GFA111 | 25 | Wilo 25/6 | 20–55 | G 1" | G 1½" | 5,4 |
| 61020200 | GFA111 | 32 | Wilo 25/7,5 | 20–55 | G 1¼" | G 1½" | 6,0 |
GFA112
| Art.no. | Reference | DN | Pump | Temperature range [°C] | Connection I | Connection J | Weight [kg] |
| 61020300 | GFA112 | 25 | Grundfos 25-50 | 20–55 | G 1" | G 1½" | 5,5 |
| 61020400 | GFA112 | 32 | Grundfos 25-70 | 20–55 | G 1¼" | G 1½" | 6,1 |
Installation support
Guidance for installers, Circulation Units
Operation
Installation examples
Technical data
Technical data
| Pressure class: | PN 6 |
| Working pressure: | 0,6 MPa |
| Insulation: | EPP λ 0,036 W/mK |
| EEI (Energy Efficiency Index), circulation pump: | <0,21 |
| Media, Heating water: | in accordance with VDI2035 |
| Media, Water/Glycol mixtures: | max. 50 % (above 20% admixture, the pump data must be checked) |
| Media, Water/Ethanol mixtures: | max. 28 % |
| Media temperature, max.: | +110 °C |
| Media temperature, min.: | 0 °C |
| Ambient temperature, max.: | +50 °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
| Grundfos UPM3 25-50 | |
| Power supply | 230 ± 10% V AC, 50/60 Hz |
| Power consumption | 2 — 34 W |
| Enclosure rating | IP X4D |
| Insulation class | F |
| EEI (Energy Efficiency Index), circulation pump | <0,20 |
| Grundfos UPM3 25-70 | |
| Power supply | 230 ± 10% V AC, 50/60 Hz |
| Power consumption | 2 — 53 W |
| Enclosure rating | IP X4D |
| Insulation class | F |
| EEI (Energy Efficiency Index), circulation pump | <0,20 |
| Wilo Yonos Para 25/6-130 RKA | |
| Power supply | 230 ± 10% V AC, 50/60 Hz |
| Power consumption | 3 — 45 W |
| Enclosure rating | IP X4D |
| Insulation class | F |
| EEI (Energy Efficiency Index), circulation pump | <0,20 |
| Wilo Yonos Para 25/7,5 RKA | |
| Power supply | 230 ± 10% V AC, 50/60 Hz |
| Power consumption | 3 — 76 W |
| Enclosure rating | IP X4D |
| Insulation class | F |
| EEI (Energy Efficiency Index), circulation pump | <0,21 |
Integrated valve
| ESBE VTA572, DN20-4,5 | |
| max. Differential pressure drop | 100kPa (1bar) |
| Temperature range | 20 - 55⁰C |
| Temperature stability | ±3⁰C * |
| * | * Valid at unchanged hot/return water pressure, minimum flow rate 9 l/min. Minimum temperature difference between hot water inlet and mixed water outlet 10°C and recommended maximum temperature difference between return water and mixed water outlet: 10°C |
| ESBE VTA572, DN25-4,8 | |
| max. Differential pressure drop | 100kPa (1bar) |
| Temperature range | 20 - 55⁰C |
| Temperature stability | ±3⁰C * |
| * | * Valid at unchanged hot/return water pressure, minimum flow rate 9 l/min. Minimum temperature difference between hot water inlet and mixed water outlet 10°C and recommended maximum temperature difference between return water and mixed water outlet: 10°C |
EMC 2014/30/EU
RoHS3 2015/863/EU
PED 2014/68/EU, article 4.3
Dimensioning
Wiring
Accessories and Spare Parts
Spare parts
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
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37101200 | VTA957 | ESBE VTA957 Exchange kit series VTA570, 20 - 43°C | VTA570 |  |
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67000600 | GSP903 | ESBE GSP903 Thermometer upgrade set, 2 pcs/package | |
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67003400 | GSP911 | ESBE GSP911 Ball valves incl thermometer DN 25, 2 pcs/package | DN25 | |
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67004000 | GSP911 | ESBE GSP911 Ball valves incl thermometer DN 32, 2 pcs/package | DN32 | |
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67004400 | GSP910 | ESBE GSP910 Insulation, Circulation unit DN 25/32 | |
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67000100 | GSP901 | ESBE GSP901 Pump RKA 25/6 Wilo | DN25 | |
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67000300 | GSP901 | ESBE GSP901 Pump RKA 25/7.5 Wilo | DN32 | |
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67000400 | GSP901 | ESBE GSP901 Pump UPM3 25-50 Grundfos | DN25 | |
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67000500 | GSP901 | ESBE GSP901 Pump UPM3 25-70 Grundfos | DN32 | |
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Options
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
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66001100 | GMA411 | ESBE GMA411 Hydraulic separation for 1 circulation unit. | |
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66001200 | GMA421 | ESBE GMA421 Manifold for 2 circulation units, without integrated hydraulic separator function. | |
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66001300 | GMA431 | ESBE GMA431 Manifold for 3 circulation units, without integrated hydraulic separator function. | |
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66001400 | GMA441 | ESBE GMA441 Manifold for 4 circulation units, without integrated hydraulic separator function. | |
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66001500 | GMA451 | ESBE GMA451 Manifold for 5 circulation units, without integrated hydraulic separator function. | |
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66001600 | GMA521 | ESBE GMA521 Manifold for 2 circulation units, with integrated hydraulic separator function. | |
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66001700 | GMA531 | ESBE GMA531 Manifold for 3 circulation units, with integrated hydraulic separator function. | |
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Download area
Download area
| Type | Preview | Download |
| Data sheet | GFA100 |
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| Installation instruction | GFA100 (de, en, fr, it, pl, sv) |
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| Installation instruction | GFA100 (cs, ee, fi, ru) |
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| Installation instruction | GFA100, Wilo Pump |
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| Installation instruction | GFA100, Grundfos Pump |
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| Certificate | Declaration of Conformity, GFA100 |
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| Certificate | Declaration of Conformity UK CA, GFA100 |
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| Certificate | Building Product Declaration BPD3, GFA100 |
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| Certificate | EAC certificate (RU) |
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| Certificate | UKRSEPRO certificate (UA) |
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| Image | GFA111, high res |
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| Image | GFA112, high res |
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| 2D Image | GFA111 |
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| 2D Image | GFA112 |
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| 3D drawing (stp file) | GFA111, DN25 |
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| 3D drawing (stp file) | GFA111, DN32 |
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| 3D drawing (stp file) | GFA112, DN25 |
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| 3D drawing (stp file) | GFA112, DN32 |
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Related materials
Related products
 |
GMA100 | Series GMA100 is manifolds for 2 or 3 circulation units including insulation according to EnEV2014 and wall brackets. | ||
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GMA200 | Series GMA200 is manifolds for 2 or 3 circulation units including integrated hydronic junction, insulation according to EnEV2014 and wall brackets. | ||
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GMA400, GMA500 | Series GMA400 and GMA500 are manifolds for circulation units including insulation shell according to EnEV2014 and wall brackets | Data sheet | Installation instruction |
Applications
Circulation unit with thermostatic fixed temperature control for under floor heating.
Products
GFA100Applications
Applications
Circulation unit with thermostatic fixed temperature control for under floor heating.
Products
GFA100Quick links