37
6
Outdoor installations
(continued)
Installation & Operation Manual
Outdoor venting
NOTICE
Before installing a venting system, follow all requirements found in the General Venting section.
Units are self-venting and can be used outdoors when installed with the optional outdoor kit.
Combustion air supply must be free of contaminants (see Combustion and Ventilation Air, page 10). To prevent recirculation of
the flue products into the combustion air inlet, follow all instructions in this section.
Outdoor vent/air inlet location
Keep venting areas free of obstructions. Keep area clean and free of combustible and flammable materials. Maintain a minimum
clearance of 3" (76 mm) to combustible surfaces and a minimum of 36" (915 mm) clearance to the air inlet. To avoid a blocked air
inlet or blocked flue condition, keep the air inlet, flue outlet, and condensate trap clear of leaves, debris, etc.
Do not install outdoor models directly on the ground. You must install the outdoor unit on a concrete, brick, block, or other non-
combustible pad.
Do not locate unit so that high winds can deflect off of adjacent walls, buildings, or shrubbery causing recirculation. Recirculation
of flue products may cause operational problems, bad combustion, or damage to controls.
Multiple unit outdoor installations require 48" (1.22 m) clearance between each vent cap. Locate outdoor cap at least 48" (1.22m)
below and 48" (1.22 m) horizontally from any window, door, walkway, or gravity air intake.
Locate unit at least 10 feet (3.05 m) away from any forced air inlet.
Locate unit at least 3 feet (0.91 m) outside any overhang.
Clearances around outdoor installations can change with time. Do not allow the growth of trees, shrubs, or other plants to obstruct
the proper operation of the outdoor vent system.
Do not install in locations where rain from building runoff drains will spill onto the unit.
90° STAINLESS STEEL
ELBOW (FIELD SUPPLIED
AS NEEDED)
STAINLESS STEEL
VENT PIPE
(FIELD SUPPLIED)
RAIN CAP
(FIELD SUPPLIED)
DIR #2000586797 00
CONDENSATE TRAP COVER
RAIN CHANNEL COVER
VENT ADAPTER (FIELD SUPPLIED)
Figure 6-2
Outdoor Venting - Stainless Steel
NOTE:
See Table 6B for approved stainless steel adapters and rain caps.