Circulation unit, Mixing function
GRC200
- Outstanding flow control thanks to the progressive characteristic of the valve
- ESBE Smart Software & Self-Adaptive System
- 2 types of controller; weather or indoor & outdoor combined
- QuickFit interface between actuator and valve - no tools needed
- 2 different high efficiency PWM circulation pumps
- PWM pump control available with 8 different settings
- Available in 2 sizes: DN25, DN32
- High class insulation shell
- Pretested and ready to use
- Compact design
The ESBE series GRC200 are circulation units designed for heating circuits where control by weather or indoor/outdoor temperature and pump control is required. Equipped with two shut-off valves with thermometers, check valve, high class insulation shell and high efficiency circulation pump with PWM control signal.
The circulation unit series GRC200 is delivered with a 3-way rotary progressive mixing valve which ensures the best regulation performance independent of flow rate and low risk of oversizing. It is also delivered with a weather compensating controller (GRC220) or combined indoor/outdoor temperature controller (GRC240). The built-in pump control allows for pump control in 8 different ways.
The circulation units series GRC200 are available in DN25 and DN32 with either a Wilo or Grundfos pump.
GRC221



Art.no. | Reference | DN | Pump | Controller type | Connection I | Connection J | Weight [kg] | Note |
61044100 | GRC221 | 25 | Wilo PARA STG 25/8 | CRC217 | G 1" | G 1½" | 6,1 | Replaces 61040200 |
61044200 | GRC221 | 32 | Wilo PARA STG 25/8 | CRC217 | G 1¼" | G 1½" | 6,3 | Replaces 61040700 |
GRC222



Art.no. | Reference | DN | Pump | Controller type | Connection I | Connection J | Weight [kg] | Note |
61044300 | GRC222 | 25 | Grundfos UPM3 Hybride 25-70 | CRC217 | G 1" | G 1½" | 6,0 | Replaces 61040900 |
61044400 | GRC222 | 32 | Grundfos UPM3 Hybride 25-70 | CRC217 | G 1¼" | G 1½" | 6,3 | Replaces 61041100 |
GRC241



Art.no. | Reference | DN | Pump | Controller type | Connection I | Connection J | Weight [kg] | Note |
61044500 | GRC241 | 25 | Wilo PARA STG 25/8 | CRD227 | G 1" | G 1½" | 6,3 | Replaces 61041300 |
61044600 | GRC241 | 32 | Wilo PARA STG 25/8 | CRD227 | G 1¼" | G 1½" | 6,7 | Replaces 61041400 |
GRC242



Art.no. | Reference | DN | Pump | Controller type | Connection I | Connection J | Weight [kg] | Note |
61044700 | GRC242 | 25 | Grundfos UPM3 Hybride 25-70 | CRD227 | G 1" | G 1½" | 6,2 | Replaces 61041500 |
61044800 | GRC242 | 32 | Grundfos UPM3 Hybride 25-70 | CRD227 | G 1¼" | G 1½" | 6,4 | Replaces 61041600 |
Install ESBE Circulation unit
Pump control – GRC200
Operation

Installation example

The heating circuits A & C are equipped with GRC240 and the heating circuit B is equipped with GRC220.
The GRC240 units are controlling the heating circuits according to the heating curve and the indoor temperature, as well as controlling the pump according to ∆t with pump on/off function.
The GRC220 unit is controlling the heating circuit according to the heating curve and controlling the pump according to ∆t with pump on/off function.
The benefits of using the circulation units series GRC200 in this application are:
● High indoor temperature comfort thanks to ESBE Smart Control and Self-Adaptive System
● Controlling the ∆t, return temperature to the heat pump to maximize the COP (Coefficient of Performance) and system performance
● Controlling the pump on/on for energy savings in case when heat is not required.
Documents
Name | Download |
Installation instruction GRC200 |
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Technical data
Pressure class: | PN 10 |
Working pressure: | 1,0 MPa |
Insulation: | EPP λ 0,036 W/mK |
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 - Series GRC221, GRC241: | min. +5°C, max. +100°C |
Media temperature - Series GRC222, GRC242: | min. +5°C, max. +110°C |
Ambient temperature: | min. 0°C, max. +55°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 25-70 Hybrid | |
Power supply: | 230 ± 10% V AC, 50/60 Hz |
Power consumption: | 2 — 52 W |
Enclosure rating: | IP X4D |
Insulation class: | F |
EEI (Energy Efficiency Index), circulation pump: | <0,20 |
Wilo PARA STG 25-130/8-60/0 | |
Power supply: | 230 ± 10% V AC, 50/60 Hz |
Power consumption: | 10 — 75 W |
Enclosure rating: | IP X4D |
Insulation class: | F |
EEI (Energy Efficiency Index), circulation pump: | <0,21 |
Integrated valve
ESBE VRG432, DN20-8 QF | |
Pressure class: | PN10 |
Kvs: | 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 QF | |
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 CRC217 230V 6Nm Wilo | |
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% |
ESBE CRC217 230V 6Nm Grundfos | |
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% |
ESBE CRD227 230V 6Nm Radio Wilo | |
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 CRD227 230V 6Nm Radio Grundfos | |
Power supply: | Actuator unit: 230 ± 10% V AC, 50 Hz; Room display unit, wireless: 2x 1,5 V LR6/AA |
Power consumption: | 10 VA |
Enclosure rating: | Actuator unit: IP41; Room display unit: IP20 |
Protection class: | II |
ERP temperature controls class: | VII |
Energy efficiency contribution: | 3,5% |
Conformity
SI 2016 No. 1105

EMC 2014/30/EU
RoHS3 2015/863/EU
ErP 2009/125/EU

SI 2016 No. 1091
SI 2012 No. 3032
SI 2010 No. 2617


Dimensioning
Wiring
Spare parts
Options
Download area
Type | Preview | Download |
Data sheet | GRC200 |
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Installation instruction | GRC200 |
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Installation instruction | CRC217, CRD227 Controller (de, en, fr, hu, it, pl, ru, sv) |
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Installation instruction | CRC217, CRD227 Controller (cs, da, el, es, fi, hr, ro) |
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Installation instruction | GRC200 (DN25/DN32), Wilo Pump |
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Installation instruction | GRC200 (DN25/DN32), Grundfos Pump |
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Certificate | Declaration of Conformity DoC, GRC220 |
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Certificate | Declaration of Conformity DoC, GRC240 |
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Certificate | Declaration of Conformity DoC (UK), GRC220 |
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Certificate | Declaration of Conformity DoC (UK), GRC240 |
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Certificate | Building Product Declaration, GRC200 |
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Image | GRC221, high res |
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Image | GRC222, high res |
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Image | GRC241, high res |
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Image | GRC242, high res |
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2D Image | GRC221 & GRC241 |
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2D Image | GRC222 & GRC242 |
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3D drawing (stp file) | GRC221 & GRC241, DN25 |
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3D drawing (stp file) | GRC221 & GRC241, DN32 |
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3D drawing (stp file) | GRC222 & GRC242, DN25 |
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3D drawing (stp file) | GRC222 & GRC242, DN32 |
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Applications
Heat pump application with Circulation units designed for heating circuits where control by weather or indoor / outdoor temperature and pump control is required.
Quick links
New generation ESBE circulation units |