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Installation Instructions
Singular Combi Boiler - BTC 439003301 B (2021/07)
2.4 Dimensions
Figure 4
2.80"
(71.1 mm)
0.36" (9.2 mm)
18.11" (460 mm)
5.57"
(141.5 mm)
5.26"
(133.5 mm)
11.61" (295 mm)
G
H
4.0"
(101.6 mm)
3.6"
(91.4 mm)
2.7"
(68.6 mm)
1.6" (40.6 mm)6.1"
(154.9 mm)
2.8"
(71.1 mm)
3.4"
(86.4 mm)
4.7" (119.4 mm)
2.2"
(55.9 mm)
8.0" (203.2 mm)
A B C D E F
1.8"
(45.7 mm)
27.56" (700 mm)
31.87" (809.5 mm)
Position Description Diameter
A Space heating Return 1" NPT
B Cold water inlet 3/4" NPT
C Condensate Outlet 1/2" NPT
D Hot water Outlet 3/4" NPT
E Space heating Supply 1" NPT
F Gas Inlet 3/4" NPT
G Exhaust Vent 2"
H Air inlet 2"
Table 3
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