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Clearances
Install the rack system so that the clearances shown below are followed.
Front
of Heater
Ground/Bottom
Indoor models: RUC98i, C199i, RUR98i
Combustibles
inches (mm)
Top of Heater
Back of Heater
Front of Heater
Sides of Heater
Ground/Bottom
Vent
* 0 inches from vent components and condensate
drain line.
The clearance for servicing is 24 inches in front of the
water heater.
For closet installation, clearance is 6 inches (152 mm
from the front.
Top
of Heater
of Heater
to
to Non-
Combustibles
inches (mm)
6 * (152)
2 *(51)
0 (zero)
0 (zero)
6 (152)
6 (152)
2 (51)
1/2 (13)
12 (305)
12 (305)
0 (zero)
0 (zero)
Front
of Heater
Side
Outdoor models: RU98e, C199e, RUR98e
Top of Heater
Back of Heater
Front (panel)
Front (exhaust)
Sides of Heater
Ground/Bottom
The clearance for servicing is 24 inches in front of the
water heater.
28
Top
of Heater
Ground/Bottom
to
Combustibles
inches (mm)
12 (305)
0 (zero)
24 (610)
24 (610)
6 (152)
12 (305)
Rinnai Rack Installation
Side
of Heater
to Non-
Combustibles
inches (mm)
2 (51)
0 (zero)
0 (zero)
24 (610)
1/8 (3.2)
2 (51)
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