Rheem RS80-42BP - Manual (Page 24)

24
Installing the water heater.
Storage Tank Installation
CAUTION:
Do not damage
internal collector
absorber with
screws.
!
Collector
Hot Pipe
Tank Clamp
1. Spread open (4) four tank clamps (2 for
metal or sturdy tile installations) to allow
room to clear tank foot, and attach to
rear foot of tank.
2. Place the (2) two tank-to-collector
spacers at the top of the collectors, to
ensure correct spacing for alignment of
downpipe and hot pipe. Refer to figure
above.
CAUTION: Do not tighten tank in place
at this stage.
3. Attach tank to supporting structure as
detailed in sections above.
Standard Installation
Drill holes in each runner, and screw
clamps directly to runner with 5/16" X
1-1/4" lag screws, see figure above.
Metal / Sturdy-Tile
1. For a sturdy tile roof, remove the tiles to
allow room to screw tank straps directly
into the rafters or trusses.
CAUTION: Tank straps must be screwed
directly into rafters or trusses not less than
39” apart and not more than 63” apart.
2. Attach two tank straps directly to rafters
or trusses with 5/16" x 1 1/4" lag screws.
3. Screw tank clamps to each strap with
5/16" X 1 1/2" machine screws and
washers.
Frame Installation
1. Screw tank clamps directly to frame with
5/16" X 1 1/2" machine screws and
washers.
2. Carefully align collector hot pipe and
downpipe connections with tank.
3. Connect hot pipe to lower-left side of
tank (or pipe extension) and upper-left
side of left-hand collector. Do not fully
tighten.
4. Connect downpipe to lower-right side of
tank (or pipe extension) and lower-right
side of right-hand collector. Do not fully
tighten.
5. Tighten hot pipe and downpipe
connections side of right-hand collector.
Do not fully tighten.
!
!
CAUTION:
DO NOT install
on a roof with a
pitch beyond
45°.
!
Collector down
pipe alignment
CAUTION:
If pitch is 30°-
45°, additional
tank bracing is
required.
!
Storage Tank Attachment Detail to Wood Runner
Tank End
Tank End
Storage Tank Attachment Detail to Metal/Tile
NOTICE: A
crane may be
necessary for
installation.
CAUTION:
If lifting tank to
roof manually,
use correct
lifting
techniques.
!