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Items in the SIRIUS SAT user module pack
6. CONNECTING THE STORAGE BOILER
These models can be connected to an external storage boiler tted with a primary exchanger coil.
The storage boiler must be located inside the home (or zone) served by the module in order to limit the connection di-
stance.
The recommended characteristics for correct application are:
- coil piping diameter: 26 mm
- Heat exchange power: 25 ÷ 30 kW with delivery temperature 75 °C
- capacity: 40 ÷ 120 litres
- Temperature probe trap: > 7 mm
A 60-litre stainless steel wall-hung storage boiler is available as an accessory for this application (SIRIUS SAT b60).
Make the hydraulic connections as shown in gure 4.
Connect the ISB (G ¾") connector on the module to the inlet of the storage boiler coil
Connect the USB (G ¾") connector on the module to the outlet of the storage boiler coil
Make sure that the pressure drops in the coil circuit (including the connection parts) are compatible with the ow – pump
head curve in gure 5.
To ensure correct performance, do not decrease below 700 l/h.
INSTALLATION AND OPERATING MANUAL
11
912.807.1 - GB
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