Circulation unit, Mixing function
GRC100
- Outstanding flow control thanks to the progressive characteristic of the valve
- Perfect heating curve characteristic
- High class insulation shell
- One size fits all – auto adapt + progressive characteristic
The ESBE series GRC is a circulation mixing unit which is intended for heating circulations where an outstanding flow and outdoor temperature control are required. Equipped with two shut-off valves with thermometers, check valve, high class insulation shell and high efficiency circulation pump. The GRC series is delivered with a 3-way rotary progressive mixing valve and actuator combined with outdoor temperature controller. The Circulation Mixing Unit ensures best regulation performances independent from flow rate and low oversizing risk thanks to the progressive valve characteristic, as well as the perfect heating curve characteristic.
Product range
GRC112
| Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
| 61040900 | GRC112 | 25 | Grunfos 25-50 | G 1" | G 1½" | 6,4 | Controller CRC111 |
GRC141
| Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
| 61041300 | GRC141 | 25 | Wilo 25/6 | G 1" | G 1½" | 7,0 | Controller CRD122, with room display unit |
| 61041400 | GRC141 | 32 | Wilo 25/7,5 | G 1¼" | G 1½" | 7,8 | Controller CRD122, with room display unit |
GRC142
| Art.no. | Reference | DN | Pump | Connection I | Connection J | Weight [kg] | Note |
| 61041500 | GRC142 | 25 | Grundfos 25-50 | G 1" | G 1½" | 7,1 | Controller CRD122, with room display unit |
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. - GRC100: | +50 °C |
| Ambient temperature, max. - GRC200: | +40 °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 Hybrid | |
| 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 VRG432, DN20-8 | |
| max. Differential pressure drop | 100 kPa (1 bar) |
| Close off pressure | 200 kPa (2 bar) |
| Leakrate in % of flow | <0,05%* |
| * | Differential pressure 100 kPa (1 bar) |
| ESBE VRG432, DN25-12 | |
| max. Differential pressure drop | 100 kPa (1 bar) |
| Close off pressure | 200 kPa (2 bar) |
| Leakrate in % of flow | < 0,05%* |
| * | Differential pressure 100kPa (1 bar) |
Integrated controller
| ESBE 90C-1A-90 | |
| Power supply | 230 ± 10% V AC, 50/60 Hz |
| Power consumption | 5 VA |
| Running time at max. speed | 120 s |
| No. of input sources | 5 |
| No. of output sources | 1 |
| Enclosure rating | IP54 |
| Protection class | II |
| ERP temperature controls class | III |
| Energy efficiency contribution | 1,5% |
| ESBE CRD122 | |
| Power supply | Actuator unit: 230 ± 10% V AC, 50 Hz; Room display unit, wireless: 2x 1,5 V LR6/AA |
| Battery endurance, wireless room display unit | 1 year |
| Power consumption | 10 VA |
| Running time at max. speed | 30 s |
| Enclosure rating | Actuator unit: IP41; Room display unit: IP20 |
| Protection class | II |
| ERP temperature controls class | VII |
| Energy efficiency contribution | 3,5% |
| Radio frequency | 868 MHz |
| ESBE CRC111 | |
| Power supply | 230 ± 10% V AC, 50 Hz |
| Power consumption | 10 VA |
| Running time at max. speed | 30 s |
| Enclosure rating | IP41 |
| Protection class | II |
| ERP temperature controls class | III |
| Energy efficiency contribution | 1,5% |
EMC 2014/30/EU
RoHS3 2015/863/EU
PED 2014/68/EU, article 4.3
Dimensioning
Wiring
Accessories and Spare Parts
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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Spare parts
| Art No. | Reference | Designation | Note | Data sheet | Instruction manual | |
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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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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 | GSP907 | ESBE GSP907 Pump Grundfos Hybrid UPM3 25-70 | DN25-DN32 | |
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17053300 | CRA912 | ESBE CRA912 Voltage adaptor, 230V — 24V | |
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17055700 | CRB914 | ESBE CRB914 Communication cable, 20m | |
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17056000 | CRC911 | ESBE CRC911 Outdoor sensor | |
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Download area
Download area
| Type | Preview | Download |
| Data sheet | GRC100, GRC200 |
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| Installation instruction | GRC100, GRC200 (de, en, fr, it, pl, sv) |
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| Installation instruction | GRC100, GRC200 (cs, ee, fi, ru) |
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| Instruction | 2-way valve function |
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| Installation instruction | GRC100, GRC200, Wilo Pump |
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| Installation instruction | GRC100, GRC200, Grundfos Pump |
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| Installation instruction | CRC111 (GRC111, GRC112) - Settings (de, en, fi, fr, it, pl, ru, sv) |
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| Installation instruction | CRD122 (GRC141, GRC142) - Settings (de, en, fr, it, pl, ru, sv, tr) |
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| Certificate | Declaration of Conformity, GRC100, GRC200 |
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| Certificate | Declaration of Conformity UK CA, GRC100, GRC200 |
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| Certificate | Building Product Declaration BPD3, GRC100, GRC200 |
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| Certificate | EAC certificate (RU) |
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| Certificate | UKRSEPRO certificate (UA) |
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| Image | GRC112, high res |
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| Image | GRC141, high res |
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| Image | GRC142, high res |
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| 2D Image | GRC111, GRC141 |
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| 2D Image | GRC112, GRC142 |
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| 3D drawing (stp file) | GRC112, DN25 |
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| 3D drawing (stp file) | GRC141, DN25 |
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| 3D drawing (stp file) | GRC141, DN32 |
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| 3D drawing (stp file) | GRC142, DN25 |
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Related materials
Related products
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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
Applications
Circulation unit with mixing valve together with controller for district heating systems.
Circulation unit with mixing valve together with controller for district heating systems.
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