26
HEATING ENGINEER
1
8
3 15 10
3
FILLING
ENTRANCE
14
EMPTY
HOT WATER
OUTLETS
3 13 5 3
12
EMPTY
16
9
3
2
3
SYSTEM
DELIVERY
4
5
3
3
2
3
SYSTEM
RETURN
9
11
7
6
Below are given the two main hydraulic diagrams:
FILLING
ENTRANCE
3
3
11
10
8
7
3
2
3
SYSTEM
RETURN
3
2
3
SYSTEM
DELIVERY
4
5
3
1
6
EMPTY
9
Heating and hot water installation RTQ 91 3S
Just heating installation RTQ 91 3S
1 - Boiler
2 - System headers
3 - Sectioning valves
4 - System circulators
5 - Check valves
6 - Automatic pressure relief valve
7 - Boiler safety valve
8 - Boiler discharge valve
9 - Expansion tank
10 - Pressure reducer
11 - Manual fast filling valve
1 - Boiler
2 - System headers
3 - Sectioning valves
4 - System circulators
5 - Check valves
6 - Automatic pressure relief valve
7 - Boiler safety valve
8 - Boiler discharge valve
9 - Expansion tank
10 - Pressure reducer
11 - Manual fast filling valve
12 -
r
7300
heater
13 - Hot water recycle pump
14 - Heater safety valve
15 - Water softener filter
16 - Heater discharge valve
