7
Vallox
121
MC
© VALLOX • We reserve the right to make changes without prior notice.
What the units include can vary depending on the sales area.
Mounting
VALLOX 121 MC is mounted on the wall with a mounting plate as
shown in the adjacent figure.
Wall mounting
Mount VALLOX 121 MC in a place where temperature does not go
below +10 °C. Without protective enclosure, the unit must be located
in a place with no acoustic disturbance, such as storerooms or technical
rooms. VALLOX 121 MC can also be located in a damp room, but not
in a bathroom next to a sauna bath.
Wall construction
The weight of the unit (60 kg) has to be taken into account when
mounting the wall bracket on the wall structure. Avoid mounting the unit
on a hollow, echoing dividing wall and on a bedroom wall because
of sound conduction, or prevent sound conduction.
Electrical connections
The unit has a plug connection. The connection box of the unit is located
loosely upon the unit and can be moved to another place as desired.
Duct connections of unit
The unit is equipped with six Ø 125-mm collars. Necessary connecting
pieces (such as inner or bent connector) can be attached to the collar.
NOTE! The connecting head of the connecting piece must not be
inserted into the collar by more than 30 mm. Fix the ducts steadily and
tightly to the relevant outlets. (Note! Unit models L/R). Implement duct
insulation if needed as defined in the ventilation plan.
162
12
21
20 60
20 30 30
20
60
11
20
30
30
11
84
84
35 30
35
ø7
550
30
25
25
30
°
Wall mounting plate
Air flow measurement outlets
The fixed air flow measurement outlets of the unit are located in the
door below the latch. You can measure the total pressure of the
supply and extract air ductwork at the measurement outlets, using a
differential pressure instrument. Pressure readings and air volume tables
(see Page 5) show volume flow rates at various adjustment positions.
The red measurement hoses are intended for measuring the supply air
ductwork and the black measurement hoses for measuring the extract
air ductwork.
Condensing water connections
The delivery includes a Silent Kick water seal. By connecting a pipe
to the water seal the water condensing from extract air can be led to
a floor drain (not directly to the drain). Silent Klick water seal prevents
the sound caused by water as the water seal dries up. The pipe must
not rise after the water seal. The condensation water discharge outlet
is located at the rear edge in the middle of the unit. Because of this the
unit has to be mounted horizontally level.
MOUNTING INSTRUCTIONS
During mounting, the unit rises 10 mm
higher than the final height.
Bottom edge of
wall bracket
Room required by
VALLOX Silent Klick
water seal.
Bottom edge
of wall bracket
14 pcs
Wall mounting plate
