4 Dimensions
A
4.0"
(101.6 mm)
(154.9 mm)
Figure 3
Position
Description
A
Space heating Return
B
Cold water inlet
C
Condensate Outlet
D
Hot water Outlet
E
Space heating Supply
F
Gas Inlet
G
Exhaust Vent
H
Air inlet
Table 3
Singular Combi Boiler - BTC 439002301 A (12.2021)
B
C
D
E F
1.8"
(45.7 mm)
6.1"
3.6"
2.7"
1.6" (40.6 mm)
(91.4 mm)
(68.6 mm)
5.57"
5.26"
(133.5 mm)
(141.5 mm)
G
18.11" (460 mm)
Service Manual
H
Diameter
1" NPT
3/4" NPT
1/2" NPT
3/4" NPT
1" NPT
3/4" NPT
2"
2"
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