Page 10 | GT INSTALLATION AND OPERATION INSTRUCTIONS |
Install and seal a rain cap over the dormant chimney opening to prevent water from entering the building. Use only ABS, PVCsch.40, CPVC, or AL294C pipe for the air inlet and vent systems as stated previously. Ensure that the air inlet and vent system lengths are within the maximums specified in Table 2.
The debris screens provided with the boiler must be installed in both the air intake and vent terminals. Install the screens in the outer most opening then glue a 1 in, 25 mm, length of pipe into the opening to retain them, Figure 9.
Concentric Air Intake and Vent Terminal
If a concentric terminal is used it must be Smith part number
When terminals from multiple boiler installations exit a roof the following conditions must apply:
If limited to two terminals the horizontal centerline distance must be 4 in, 102 mm or greater than 24 in, 610 mm, to prevent flue gas recirculation. For more than two terminals located along a given plane, the centerline distance between them must be 24 in, 610 mm, Figure 18.
Figure 17 - Concentric Through the Roof
Figure 18 - Multiple Concentric Through the Roof
CONDENSATE DRAIN
WARNING: The condensate siphon must be connected to the boiler per the following instructions or combustion gases will enter the room. This can result in excessive levels of carbon monoxide which can cause severe personal injury or death!
This unit produces water as a byproduct of combustion. Much of this water condenses on the heat exchanger and in the venting system. Condensate must be drained from the boiler into a household drain as shown in Figure 19.
Figure 19 - Condensate Piping
NOTE: Check with your municipality, or local gas company to determine if disposal of untreated combustion condensate is permitted. If not, the condensate will have to be neutralized with lime crystals, marble chips or phosphate chips.
