Installation Guide

38 Rinnai Tankless Water Heater Installaon and Operaon Manual
Roof Terminaon
6 in. (152 mm) Maximum
• Combuson air must not be supplied from occupied
spaces of the manufactured home. Access panels,
doors or opening of any kind are not permied
between the installaon enclosure and the inside of
the manufactured home.
• The installaon enclosure must include an exterior
access door incorporang a single opening posioned
a maximum of 6 in. (152 mm) above the lower edge of
the door. The opening in the access door must be
metal with no less than 1/4 in. (6.4 mm) mesh.
• The water heater is to be secured to the wall of the
manufactured home using the integrated mounng
brackets on the back side of the water heater.
Installaon Enclosure with Louvered Door for
Manufactured Home Applicaons
Use the following chart to idenfy the minimum required
size of the opening in the access door.
Model Input Btu/h
Minimum
Required Area
Example Opening
Size (LxH)
RU199i 199,000
200 in
2
(0.129 m
2
)
20 in. x 10 in.
(508 mm x 254 mm)
RU180i 180,000
180 in
2
(0.116 m
2
)
18 in. x 10 in.
(457 mm x 254 mm)
RU160i 160,000
160 in
2
(0.103 m
2
)
16 in. x 10 in.
(406 mm x 254 mm)
RU130i 130,000
130 in
2
(0.0839 m
2
)
13 in. x 10 in.
(330 mm x 254 mm)
Roof Flashing
Top and Boom
Mounng Brackets
Door
Louvered Opening
PVC Elbow with
Vent Screen
Hot Water Outlet
Cold Water Inlet
Pressure Relief Valve
To Suitable Drain
Gas Supply
Condensate Drain
Manufactured (Mobile) Home
For Installaon in a Manufactured Home (Mobile Home)
Non-Direct Vent (Room Air)
2
Pipe Connecons on
Boom of Water Heater