wiring information on Altai th-9520 programmable thermostat

Can anyone help,i have a saunier duval sd 30e combi boiler with connections R1,R2,E,N and Live and i want to connect a programmable thermostat th-9520 with connections1,2,3,4, and 5.Can these be connected using a three core cable and if so how? I hope some one can help please. Albar

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