Circ Unit_GRC112.png Circ Unit_GRC141.png Circ Unit_GRC142.png Circ Unit_GRC211.png
Circ Unit_GRC112.png Circ Unit_GRC141.png Circ Unit_GRC142.png Circ Unit_GRC211.png

Circulation unit, Mixing function

GRC100, GRC200

  • 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

Circ Unit_GRC112.png
GRC112_GBC112 front_A-01.png
GRC112_GBC112 side_A-01.png
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

Circ Unit_GRC141.png
GRC111_GBC111 front_B-01.png
GRx111_GBx111 side_RGB_A-01.png
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

Circ Unit_GRC142.png
GRC112_GBC112 front_A-01.png
GRC112_GBC112 side_A-01.png
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

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

Dimensioning

Dimensioning guide - Please see data sheet

Wiring

Please see the 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
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
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 GSP907 ESBE GSP907 Pump Grundfos Hybrid UPM3 25-70 DN25-DN32 download download
17053300 17053300 CRA912 ESBE CRA912 Voltage adaptor, 230V — 24V download download
17055700 17055700 CRB914 ESBE CRB914 Communication cable, 20m download download
17056000 17056000 CRC911 ESBE CRC911 Outdoor sensor download download
Download area

Download area

Type Preview Download
Data sheet GRC100, GRC200 download
Installation instruction GRC100, GRC200 (de, en, fr, it, pl, sv) download
Installation instruction GRC100, GRC200 (cs, ee, fi, ru) download
Instruction 2-way valve function download
Installation instruction GRC100, GRC200, Wilo Pump download
Installation instruction GRC100, GRC200, Grundfos Pump download
Installation instruction CRC111 (GRC111, GRC112) - Settings (de, en, fi, fr, it, pl, ru, sv) download
Installation instruction CRD122 (GRC141, GRC142) - Settings (de, en, fr, it, pl, ru, sv, tr) download
Certificate Declaration of Conformity, GRC100, GRC200 download
Certificate Declaration of Conformity UK CA, GRC100, GRC200 download
Certificate Building Product Declaration BPD3, GRC100, GRC200 download
Certificate EAC certificate (RU) download
Certificate UKRSEPRO certificate (UA) download
Image GRC112, high res download
Image GRC141, high res download
Image GRC142, high res download
2D Image GRC111, GRC141 download
2D Image GRC112, GRC142 download
3D drawing (stp file) GRC112, DN25 download
3D drawing (stp file) GRC141, DN25 download
3D drawing (stp file) GRC141, DN32 download
3D drawing (stp file) GRC142, DN25 download
Applications

Applications

Circulation unit with mixing valve together with controller for radiator circuit.

Circulation unit with mixing valve together with controller for district heating systems.

Circulation unit with mixing valve together with controller for district heating systems.