GRC222_design2.png GRC241_design2.png GRC242_design2.png
GRC222_design2.png GRC241_design2.png GRC242_design2.png

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.

Product range

GRC221

GRC221_design2.png
GRC2x1_Design2_A_Front.png
GRC2x1_Design2_A_Side.png
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

GRC222_design2.png
GRC2x2_Design2_A_Front.png
GRC2x2_Design2_A_Side.png
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

GRC241_design2.png
GRC2x1_Design2_A_Front.png
GRC2x1_Design2_A_Side.png
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

GRC242_design2.png
GRC2x2_Design2_A_Front.png
GRC2x2_Design2_A_Side.png
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
Installation support

Operation

Operation

Installation example

Installation example
The circulation unit series GRC200 in a heating system with a heat pump.

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

Technical data

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

PED 2014/68/EU, article 4.3 /
SI 2016 No. 1105
LVD 2014/35/EU
EMC 2014/30/EU
RoHS3 2015/863/EU
ErP 2009/125/EU
SI 2016 No. 1101
SI 2016 No. 1091
SI 2012 No. 3032
SI 2010 No. 2617
EnEV2014

Dimensioning

Please see Data sheet

Wiring

Please see Installation instruction
Accessories and spare parts

Spare parts

Art No. Reference Designation Note Data sheet Instruction manual
17055500 17055500 CRB913 ESBE CRB913 Room unit, wireless download download
17056200 17056200 CRA915 ESBE CRA915 UK Plug 230V-12V download download
67007000 67007000 GSP963 ESBE GSP963 Controller CRC217 QF Wilo download download
67007100 67007100 GSP963 ESBE GSP963 Controller CRC217 QF Grundfos download download
67007200 67007200 GSP964 ESBE GSP964 Controller CRD227 Radio QF Wilo download download
67007300 67007300 GSP964 ESBE GSP964 Controller CRD227 Radio QF Grundfos 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
67005700 67005700 GSP932 ESBE GSP932 Pump Wilo STG 25/8 DN25-DN32 download download
67000500 67000500 GSP907 ESBE GSP907 Pump Grundfos Hybrid UPM3 25-70 DN25-DN32 download download

Options

Art No. Reference Designation Note Data sheet Instruction manual
17056400 17056400 CRB916 ESBE CRB916 Communication radio module, wireless download download
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 GRC200 download
Installation instruction GRC200 download
Installation instruction CRC217, CRD227 Controller (de, en, fr, hu, it, pl, ru, sv) download
Installation instruction CRC217, CRD227 Controller (cs, da, el, es, fi, hr, ro) download
Installation instruction GRC200 (DN25/DN32), Wilo Pump download
Installation instruction GRC200 (DN25/DN32), Grundfos Pump download
Certificate Declaration of Conformity, GRC200 download
Certificate Declaration of Conformity UK CA, GRC200 download
Certificate Building Product Declaration, GRC200 download
Image GRC221, high res download
Image GRC222, high res download
Image GRC241, high res download
Image GRC242, high res download
2D Image GRC221 & GRC241 download
2D Image GRC222 & GRC242 download
3D drawing (stp file) GRC221 & GRC241, DN25 download
3D drawing (stp file) GRC221 & GRC241, DN32 download
3D drawing (stp file) GRC222 & GRC242, DN25 download
3D drawing (stp file) GRC222 & GRC242, DN32 download
Applications

Applications

Heat pump application with Circulation units designed for heating circuits where control by weather or indoor / outdoor temperature and pump control is required.