Common applications of KBR boilers
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
30
5.2
Multiple zones using circulators with DHW
Fig. 13 Piping
[1]
Supply to heating zone 2
[2]
Pump heating zone 2
[3]
Supply to heating zone 1
[4]
Pump heating zone 1
[5]
Supply to indirect tank
[6]
DHW pump
[7]
Drain/Bleed point
[8]
Boiler supply pipe 1¼ "
[9]
Low Loss Header
[10]
Heat only boiler
[11]
Boiler return pipe 1¼ "
[12]
Return from indirect tank
[13]
Return from heating zone 1
[14]
Return from heating zone 2
[15]
Grain/Bleed point x3
[16]
Combination fast fill/back flow preventer
[17]
Expansion (tank) vessel
5.2.1
To utilize the LLH
▶ Switch off and isolate the boiler
▶ Drain the boiler
▶ Remove front panel
▶ Locate the LLH at the left-hand side of the lower section of the boiler
1. Unscrew the cap [a] from the body of the LLH [c]
– This will break the label across the cap and body indicating that
the LLH has been employed
2. Withdraw the cap [a] and plunger assembly [b]
3. Unscrew the plunger assembly [b] from the cap [a],
4. Set the plunger assembly [b] aside
5. Re-fit the cap [a] without the plunger assembly [b]
6. Tighten the cap [a] and ensure it is secure.
Fig. 14 Utilizing the LLH
6720810590-16.1W
o
1
3
5
12
13
14
11
8
17
9
10
2
4
6
15
16
7
c
a
b
2.
4.
1.
5.
6.
6720811590-37.1Wo
3.