XRGI
®
- INSTALLATION GUIDE
VERSION 1.0 2018
46
■
Always set the Tf higher than the maximum flow temperature in the control settings to
give the XRGI® system priority over the boiler, so that the XRGI® system always supplies
the base load heat (Δ 5 K is sufficient).
■
Select the Flow Master type/size based on the discharge capacity required.
■
Use a minimum of two Storage Controls (= eight temperature sensors) if the storage
volume exceeds 1,000 litres, such as with multi-module systems.
■
Possible use of condensing technology in the boiler is slightly reduced by raising the
return water temperature. However, the achieved efficiency improvement of the XRGI®
system production more than covers this minor loss.
Power Unit, Q-Heat Distributor, iQ-Control Panel, Flow Master, Flow Master Control,
Storage Control, storage tank
Other hydraulic systems are described under EC POWER Hydraulic Solutions – the latest version of which, accessed
at www.ecpower.eu , applies.
S E R I E S C I R C U I T W I T H I N J E C T I O N – B O I L E R W I T H H E A D E R
I M P O R TA N T
M A I N C O M P O N E N T S F O R O P E R AT I O N O F T H E X R G I ® S Y S T E M :
1
H O
Hydraulics
–
O N E X R G I®
1
H M
Hydraulics
–
M O R E T H A N O N E X R G I ®
Temperature sensor
Signal cable for sensor/ controls
Signal cable for external components
Flow, return water
Q-Network cable (heating circuit)
Q-Network cable (control circuit)
Pump
Heat consumer
2-way-valve
3-way-valve
L E G E N D
Fig. 5.01
Fig. 5.02