Bosch BGH96M080C4B - Page 18

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Installation Instructions
Bosch 96% AFUE Condensing Gas Furnace - BTC 770503101 J (06.2023)
7.3.2 For Upow Installation
Top venting (see Fig. 14)
1. Connect vent pipe and air intake pipe (if applicable) to the couplers on the
furnace top panel.
2. Use filed supplied straight 2'' diameter pipe. If 3'' pipes are used, use a field
supplied transition.
3. Depending on which side the condensate trap is mounted, remove 2 caps
on the side where trap is mounted. Mount trap with manufacturer provided
screws.
4. Remove cap from the inducer drain port (see Fig. 13).
Figure 13
5. Connect Φ16 mm hose between condensate collector box and drain trap
and connect Φ14 mm hose between inducer drain port and drain trap. (see
Fig. 15).
6. Cut the excess hoses as needed.
Figure 14
X1
X2
16mm hose
14mm hose
Model X1/mm X2/mm
BGH96M100D5B
BGH96M120D5B
60 84
BGH96M080C4B
BGH96M100C5B
135 149
BGH96M060B3B
BGH96M080B3B
240 219
Table 2
7. Secure and tighten all hoses using manufacturer provided hose clamps.
Figure 15
DRAIN TRAP
14 mm HOSE
HOSE CLAMP
HOSE
CLAMP
EXHAUST COUPLER
AIR INLET
COUPLER
16 mm HOSE
HIGH/LOW
FIRE
PRESSURE
SWITCH
METAL
HOSE CLAMPS
CONDENSATE
COLLECTOR BOX
Upow Installation, Top Venting