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1.- 3/4” BSP Central heating return
2.- Mains cable
3.-1/2” BSP Domestic cold water inlet
4.- 3/4” BSP Gas inlet
5.- 1/2” BSP D.H.W. outlet
6.- 3/4” BSP Central heating ow
8.- Pressure Relief Valve
9.- Draining valve for central heating
T.A.:Room thermostat connection
T.A.
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CH ow DHW DCW CH Return
Gas Inlet
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