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

Operation

Installation examples

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
LVD 2014/35/EU
EMC 2014/30/EU
RoHS 2011/65/EU
PED 2014/68/EU, article 4.3
ErP 2009/125/EU
ErP 2015
EnEV 2014

Dimensioning

Dimensioning
Dimensioning guide - Please see data sheet

Wiring

Please see the Installation instruction
Accessories and Spare Parts

Spare parts

Art No. Reference Designation Note Data sheet Instruction manual
37101200 37101200 VTA957 ESBE VTA957 Exchange kit series VTA570, 20 - 43°C VTA570 download download
67000600 67000600 GSP903 ESBE GSP903 Thermometer upgrade set, 2 pcs/package 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
67004400 67004400 GSP910 ESBE GSP910 Insulation, Circulation unit DN 25/32 download download
67000100 67000100 GSP901 ESBE GSP901 Pump RKA 25/6 Wilo DN25 download download
67000300 67000300 GSP901 ESBE GSP901 Pump RKA 25/7.5 Wilo DN32 download download
67000400 67000400 GSP901 ESBE GSP901 Pump UPM3 25-50 Grundfos DN25 download download
67000500 67000500 GSP901 ESBE GSP901 Pump UPM3 25-70 Grundfos DN32 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
Download area

Download area

Type Preview Download
Data sheet GFA100 download
Installation instruction GFA100 (de, en, fr, it, pl, sv) download
Installation instruction GFA100 (cs, ee, fi, ru) download
Installation instruction GFA100, Wilo Pump download
Installation instruction GFA100, Grundfos Pump download
Certificate Declaration of Conformity, GFA100 download
Certificate Declaration of Conformity UK CA, GFA100 download
Certificate Building Product Declaration BPD3, GFA100 download
Certificate EAC certificate (RU) download
Image GFA111, high res download
Image GFA112, high res download
2D Image GFA111 download
2D Image GFA112 download
3D drawing (stp file) GFA111, DN25 download
3D drawing (stp file) GFA111, DN32 download
3D drawing (stp file) GFA112, DN25 download
3D drawing (stp file) GFA112, DN32 download
Applications

Applications

Circulation unit with thermostatic fixed temperature control for under floor heating.

Products

GFA100