beautypg.com
3YSTEM
#HECK
6ALVE
"LEND
0UMP
0RESSURE
"ACKFLOW
!MTROL
!IR
OR
&ROM
7ATER
%XPANSION
4ANK
&IGURE
!44%.4)/. (EATING
!
6ISIT
3ECTION
v
-
A
X
./4%3s
FOR
s
BOILER
3INGLE
-INIMUM