Mounting The Unit; Drain Installation; Removing And Replacing Parts; Opening The Knockout Hole - Rheem RHMV4821SNACJA Manual De Instalación

3.4. Mounting the unit

• Install the outdoor unit without slant. (within 3 degrees )
• Install 4 anchor bolts at the locations indicated with arrows in the fi gure.
• To reduce vibration, do not install the unit directly on the ground. Install it on a secure
base (such as concrete blocks).
• The foundation shall support the legs of the unit and have a width of 2 in (50 mm) or
more.
• Depending on the installation conditions, the outdoor unit may spread its vibration
during operation, which may cause noise and vibration. Therefore, attach damping
materials (such as damping pads) to the outdoor unit during installation.
• Install the foundation, making sure that there is enough space for installing the
connection pipes.
• Secure the unit to a solid block using foundation bolts. (Use 4 sets of commercially
available M10 bolts, nuts, and washers.)
• The bolts should protrude 13/16 in (20 mm). (Refer to the fi gure.)
• If overturning prevention is required, purchase the necessary commercially available
items.
[ Unit: in (mm) ]
6-9/16
25-9/16
(166) (650)
1-15/16
(50)
AIR
• Do not install directly on the ground, this may result in equipment failure.
• Provide ample space for ice buildup from condensate between the bottom of the unit and
the flat surface on which it is mounted. Otherwise, there is risk that the drainage water
will freeze between the device and the surface, disabling drainage.
If the unit is installed in a region that is exposed
to high winds, freezing conditions, freezing rain,
snow fall or heavy snow accumulation, take
appropriate measures to protect it from those
elements.
To ensure stable operation, the outdoor unit must
be installed on a raised stand or rack, at or above
the anticipated snow depth for the region.
Base
The installation of snow hoods and drift preven-
tion fencing is recommended when blowing and
drifting snow is common to the region.

3.5. Drain installation

• Perform drain work in accordance with this Manual, and ensure that the drain water
is properly drained. If the drain work is not carried out correctly, water may drip down
from the unit, wetting the furniture.
• When the outdoor temperature is 32 °F (0 °C) or less, do not use the accessory drain
pipe and drain cap. If the drain pipe and drain cap are used, the drain water in the
pipe may freeze in extremely cold weather.
• If you are installing the drain pipe and drain caps,
provide a working space under the base of the
outdoor unit.
• As the drain water flows out of the outdoor unit
during heating operation, install the drain pipe and
connect it to a commercial 5/8 in (16 mm) hose.
• When installing the drain pipe, plug all the holes
other than the drain pipe mounting hole in the
bottom of the outdoor unit with putty so there is no
water leakage.
En-6
9374995677-02_IM.indb 6 9374995677-02_IM.indb 6
6-1/16
(154)
1-15/16
Bolt
(50)
Nut
Base
CAUTION
CAUTION
Drain pipe mounting hole
Base of the outdoor unit
Drain pipe
[ Unit: in (mm) ]
Drain cap mounting hole ×7
3 (76)
1-15/16 (50)
Air
1-9/16 (40)
10-15/16 (278)
17-1/4 (438)
20-11/16 (526)
24-1/2 (622)
27-3/16 (690)

3.6. Removing and replacing parts

3.6.1. Service panel removal
(1) Remove the tapping screws. (2 places)
(2) Remove the service panel by pushing downwards.
3.6.2. Installing the service panel
(1) Align the hooks (3 places) on the "service panel" with the hook holes (3 places) on the
outdoor unit and push up the "service panel".
(2) Replace the tapping screws. (2 places)
Screws
(2 places)
Hook
(3 places)
Service panel
(inside)

3.7. Opening the knockout hole

CAUTION
• Be careful not to deform or scratch the panel while opening the knockout holes.
• To protect the piping insulation after opening a knockout hole, remove any burrs from
the edge of the hole. It is recommended to apply rust prevention paint to the edge of
the hole.
• Pipes can be connected from 4 directions, front, lateral side, rear side and bottom.
(Fig. A, B)
• When connecting at the bottom, remove the service panel and piping cover on the front
of the outdoor unit, and open the knockout hole provided at the bottom corner of the
piping outlet.
• It can be installed as shown on "Fig. B" cutting out the 2 slits as indicated on "Fig. C".
(When cutting slits, use a steel saw.)
Drain pipe mounting hole
Direction of the service
panel removal
Hook hole
(3 places)
Service panel
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