Installation manual

NOTE: Provisions must be made to prevent the condensate from entering the water heater.
Without proper drainage or disposal condensate will damage the heat exchanger.
Horizontal Venting with a
Condens ate Collector
Horizontal Venting w ithout a
Condens ate Collector
Condensate
Trap
Vertical Venting
(condensate collec tor r equired)
Maximum Height
5 feet
3 in
min
3 in
min
3 in
min
Re gions of cold clima te will create
more condensate in the vent
sy stem. A condens ate collector is
re commended in cold climates.
If more than one elbow is used
in the vertica l section you mus t
us e a condensate collector.
35
Rinnai America
FF Models
INSTA L L E R ’ S I NSTA L L AT I O N IN S T R U C T I O N S
Venting
Condensate
Condensate formation can occur in Category III direct vent appliances.
•
Vertical terminations must incorporate a condensate drain and trap as close as possible to
the appliance.
•
The condensate trap must contain a minimum of 3" of water.
•
Dispose of condensate per local codes.
•
Slope horizontal venting 1/4 inch per foot either towards the heater with a condensate
collector or towards the exhaust terminal.