Baxi Solo 3 30 PF System Installation And Servicing Instructions page 9

4.0 System Details - Page 9
4.4 Pipework
1. The sizes of flow and return pipes from the boiler should
be determined by normal methods, according to the
requirements of the system.
2. The connections to the boiler are 22mm copper tails.
4.5 System Controls
1. For optimum operating conditions, the heating system
into which the boiler is installed should include a control
system.
2. Such a system will comprise of a timer control and
separate room or cylinder thermostats as appropriate. (An
integral twin channel programmer is available as an optional
extra).
3. The boiler should be controlled so that it operates on
demand only.
4. Operation of the system under control of the boiler
thermostat & TRV's only does not produce the best results
4.6 Thermal Stores & Heat Stores
1. If a thermal store or heat store is being used, it should be
one approved for use with the Baxi Solo 3 PF System Boiler.