1-15
INSTALLATION
TANKLESS WATER HEATER 199
For sidewall venting of multiple units, group all intake terminals together with 6"
(minimum) lateral spacing, and similarly group the exhaust pipes. Place the 2
groups on the same plane of the building (e.g., north facing wall). Place the 2
groups of pipes at least 3' apart (the closest intake and exhaust pipes must be
36" - or more – apart). Use same 12" (minimum) vertical separation (
see A in
Figure 15
). Alternatively, as long as the units are identical models - intake and
exhaust terminals can maintain a minimum of 12" of separation horizontally from
any exhaust or inlet termination of an adjacent unit
(
see B in Figure 15
).
DIRECT VENT SIDE WALL TERMINATION KITS
The sidewall Termination kits approved for use with the tankless water heater are
subject to restrictions.
NOTE:
Some jurisdictions may not allow this type of side
wall termination due to close proximity to the neighboring properties.
See Figures
16, 17 and 18 on page 1-15, 1-16
You must follow the installation instructions, clearances and wall thickness
requirements of the approved vent termination manufacturer.
Approved Side Wall Termination Kits are listed below:
•
2" PVC low profile termination kit - Part #P-741
•
3" PVC low profile termination kit - Part #P-742
Vent on Left or Right Side
Figure 15: Sidewall vent termination - multiple vent piping configuration
[305mm]
[305mm]
[152mm]
[152mm]
12" [305mm] MIN.
[91mm]
Figure 16 PVC low profile termination acceptable orientations