Installation & Servicing Instructions Rinnai Q Premier
20
Boiler
basic
piping
fi gure 8
T
P
V1
Service valve
V2
Service valve
1.
shut off valve
2. system
circulator
3. check
valve
4. balancing
valve
5.
boiler drain valve
6. dirt
trap
7. air
separator
8. automatic
fi
ll valve
9. back
fl
ow preventer
10. expansion tank (in case the content of the built-in expansion tank is not suf
fi
cient)
11. bypass for system cleaning
12. ASME 30 psi pressure relief valve
13. Temperature and pressure gauge
1
2
3
4
5
6
7
8
9
10
11
12
13