Grant Products HPAW155 - Manual (Page 17)

Hydraulic Diagrams
13
4.7 Extended S-Plan with Buffer - Monovalent
Cylinder
Stat
Room
Stat
Room
Stat
Internal wiring
centre
Heating Load
Programmer
The hydraulic diagrams do not show
the isolation valves, any expansion
vessels, pressure relief valves or
filling loops. More information on
these components can be found in
section 7.
! NOTE
Figure 4-8: Monovalent system - with Buffer and extended S-Plan type controls
CH Flow
DHW
Flow
Flow
Flexible
pipe
Buffer
tank
Isolating
valve
Isolating
valve
Return
Grant Aerona
Heat Pump
Primary
Pump
Condenser
Heat Pump
ATC
CH Retur
n
DHW Retur
n
Outside
wall