Baxi PREMIER PLUS 800L Installation And User Instructions Manual page 6

Diagram 3
Temperature
and Pressure
Balanced cold
To hot outlets
Pressure relief
(T&P)
water connection
relief valve valve
Pressure reducing
valve
Mains water
supply
Secondary
return
Boiler thermostatic
Element
controls
Primary flow
Tundish
Primary return
Discharge pipe
Inlet
Drain valve
Diagram 4
To hot outlets
None-return valve
WRAS approved
pump
Secondary
return
Cold water inlet
6