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4.5.9 Termination Clearances for External (Outdoor) Water
Heaters
Figure 27
4.5. 1 0 Adjustment for High Altitude Installations
Use parameter settings to select the appropriate altitude for your installation. The default setting for the
appliance is 0-2,000 ft. (0-610 m), Parameter Setting 2A. Refer to section "4.10.1 Configure Parameter
Settings" for specific details on setting parameters..
Altitude
0-2,000 ft (0-610 m)
2,001-5,400 ft (610-1,646 m)
5,401-7,700 ft (1,646-2,347 m)
7,701-10,200 ft (2,347-3,109 m)
Checklist for Venting Requirements
□
DO NOT use room air for combustion.
□
Installation complies with National Fuel Gas Code, ANSI Z223.1/NFPA 54 as well as local and
state regulations therein.
□
For indoor models verify that the parameters have been adjusted for vent length if necessary.
Refer to the section on Maximum Vent Length.
□
Confirm high altitude settings are correct for installation location requirements. See Parameter
Settings Table for more information.
Rinnai Tankless Water Heater Installation and Operation Manual
2 in.
12 in.
(0.30 m)
Corner
Parameter Setting
02A
02b
02C
02d
36 in. (0.91 m) to ventilated or unventilated
soffit or eve vent; or to a deck or porch
60 in. (1.52 m) vertically between terminals
12 in. (0.30 m) from
ground anticipated
snow line
31
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