Bosch GWH 345 ESR-N Manual page 16

Installation instructions
Use table below to define which restrictor to be used.
Total equivalent length (ft)
20 - 38
38 - 78
18 - 28
28 - 40
40 - 65
65 - 78
Total equivalent length (ft)
20 - 38
38 - 78
18 - 28
28 - 50
50 - 78
Table 8 Restrictors table
After installation is complete, check CO
chapter 3.9.
16
Combustion air inlet connection
The combustion air inlet accessory can only be
Restrictor Ø
connected to the top right of the appliance. The left side
must remain sealed.
Note: Before installing the combustion air inlet
38
accessory, the appropriate inlet air restrictor must
be determined using Tables 6, 7 and 8.
40
Refer to Fig. 16 for mounting sequence.
B Place gasket, deflector, gasket and inlet air restrictor
44
on the air inlet opening lining up screw holes as seen
in Fig. 16.
47
50
55
Restrictor Ø
38
40
47
50
Fig. 16 Mounting sequence
a
55
b
c
d
levels per
2
B Attach the combustion air inlet accessory (8 705
504 141) to the top of the unit (position 3) using the
4 screws provided.
B Install 3" combustion air pipe over the air inlet
accessory.
Fig. 17 Combustion air inlet accessory
Gasket
Deflector
Restrictor
Adaptor
3.
d
c
b a
6720607909-10.2JS
6720607909-12.2JS
6 720 607 909