9189PH1CHPPT2

Which type of heating system is compliant with building regulations L1A?

• Pumped central heating and gravity hot water.

• Fully pumped, two-port valves (S plan)

• Fully pumped, three-port valve (mid-position/diverting) (Y/W plans)

• Fully pumped, 3 x two-port valves (S plan+)

What is the advantage of a C plan two-pipe semi-gravity system?

• Not fully pumped

• All heat emitters reach the same temperature

• Restricted heat control

• Overheating possible

Which type of system is used with solid fuels and has a heat sink to dissipate excess heat?

• Fully pumped, 3 x two-port valves (S plan+)

• Fully pumped, two-port valves (S plan)

• Two-pipe semi-gravity with heat sink

• Fully pumped mid-position valve – Y plan system

What is the disadvantage of a two-pipe semi-gravity with heat sink system?

• Restricted heat control

• Quicker heat-up time

• Compliant with building regulations (Part L)

• Overheating possible

What type of system is this?

• S plan

• Open vented s plan plus

• Splan plus system boiler

• Fully pumped mid-position valve – Y plan system

What is the advantage of fully pumped systems?

• Only used on open vented systems

• Quicker heat-up times

• Boiler position needs to be lower than the cylinder

• Restricted heat control

Which type of system incorporates a three-port mid-position (zone) valve?

• Fully pumped, 3 x two-port valves (S plan+)

• Fully pumped, two-port valves (S plan)

• Fully pumped mid-position valve – Y plan system

• Fully pumped systems

What is the function of the three-port mid-position valve in the Y plan system?

• Controls the flow of water to both the heating and hot water circuits

• Acts as an isolator, closing the flow of water off

• Provides either hot water or heating, but never both simultaneously

• Allows independent control of two zones

What type of system uses one zone valve to control the hot water and a second zone valve to control the heating circuits?

• Fully pumped, two-port valves – S plan system

• Fully pumped, 3 x two-port valves (S plan+)

• Fully pumped mid-position valve – Y plan system

• Fully pumped systems

What is the advantage of the S plan system?

• Recommended for larger properties

• Can be used with sealed systems

• Building regulations compliant

• Full thermostatic control