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Breathing Hazard - Carbon Monoxide Gas
Do not obstruct water heater air intake.
Gas and carbon monoxide detectors are available.
Install water heater in accordance with the instruction manual.
Breathing carbon monoxide can cause brain damage or death. Always read and understand instruction manual.
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4” PIPE FIELD | 3” PIPE FIELD | 3” PIPE FACTORY |
SUPPLIED | SUPPLIED | INSTALLED |
INTAKE AIR 
4” x 3” REDUCER | 3” COUPLING OR TEE | COMBUSTION |
BLOWER | ||
FIELD SUPPLIED | FACTORY INSTALLED |
|
INTAKE AIR CONNECTION
INTAKE AIR CONNECTION
Figure 20
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120,000 & 150,000 | 199,000 & 250,000 |
Btu/hr MODELS | Btu/hr MODELS |
| INTAKE AIR SCREEN |
3 INCH INTAKE AIR CONNECTIONS | |
| FACTORY INSTALLED |
INTAKE AIR SCREEN | |
(remove for Direct Vent) | |
Figure 19
INSTALL TEE FITTING AS CLOSE TO WATER HEATER | INTAKE | |
INTAKE AIR CONNECTION AS POSSIBLE | ||
AIR | ||
FACTORY | ||
PIPING | ||
INTAKE AIR | ||
CONNECTION |
|
FIELD SUPPLIED 3” x 3” x 1/2” TEE WITH HOSE BARB FITTING INSTALLED
CONNECT FIELD
SUPPLIED FLEXIBLE
DRAIN HOSE TO BARB
FITTING AND FORM A
LOOP WATER TRAP IN
DRAIN HOSE
RUN DRAIN HOSE
TO SUITABLE FLOOR
DRAIN SEPARATELY
FROM OTHER
CONDENSATE DRAINS
INTAKE AIR CONDENSATE TEE INSTALLATION
Figure 21
26
