Common Applications Of Kbr Boilers; Multiple Zones Using Zone Valves With Dhw; Utilizing The Llh - Bosch Greenstar FS Series Installation And Maintenance Instructions For Contractors

Common applications of KBR boilers

5 Common applications of KBR boilers
5.1

Multiple zones using zone valves with DHW

1 3
4
2
M M
Fig. 10 Piping
[1] Supply to heating zone 2
[2] Motorized valve heating zone 2
[3] Supply to heating zone 1
[4] Motorized valve heating zone 1
[5] System pump
[6] DHW pump
[7] Supply to indirect tank
[8] Drain/Bleed point
[9] Boiler supply pipe 1¼ "
[10] Low Loss Header
[11] Heat only boiler
[12] Boiler return pipe 1¼ "
[13] Return from indirect tank
[14] Return from heating zone 1
[15] Return from heating zone 2
[16] Drain/Bleed point
[17] Combination fast fill/back flow preventer
[18] Expansion (tank) vessel
28
7
6
8
5
18
11
10
9
17
5.1.1

Utilizing 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.
a
b
2.
3.
4.
6.
1.
5.
Fig. 11 Utilizing the LLH
Greenstar FS/Combi FS – 6 720 810 590 (2020/04)
13 14 15
12
16
c
6720811590-37.1Wo