Daikin VAM Series Engineering Data page 129

EDMMT712101
VAM150-1000HVE
5
DUCT CONNECTION
Follow the instructions below to connect ducts.
Use the duct applicable to the model of the unit used.
Do not connect ducts as shown in the figure on the right (Examples of prohibited duct
connection).
Follow the minimum bending radius for flexible ducts specified in the catalog of the
flexible ducts used.
To prevent air leakage, wind aluminum tape around the section after the duct
connector and the duct are connected ① .
Be sure to insulate the ducts and duct connectors ① (accessory) to prevent condensation.
(Material: Glass wool of at least 25mm thickness).
In cold areas where outside temperature falls below -10°C, provide
insulation for the indoor duct (SA) to prevent condensation.
If the level of temperature and humidity inside the ceiling is constantly high, be sure to
install ventilation equipment inside the ceiling.
Install the two outdoor ducts (intake and exhaust) with a downward slope (slope of
1/30 or more) to prevent entry of rainwater.
Insulate the duct and the wall electrically when a metal duct is passed through a
metal lattice, wire lattice, or metal lining of a wooden structure.
Do not use a bent cap or a round hood as the outdoor hood because it might get wet
in rain directly.
In this case, we recommend using a deep hood (optional accessory).
When using a deep hood, make sure the duct from the deep hood (outer wall) to the
unit is at least 1m long.
Set the pitch between the exhaust air outlet (EA) and the outside air intake (OA) on
external wall to 3 times the duct diameter.
If windows and road lighting equipment are close to the air intake (OA) of suburban
buildings and insects tend to swarm around the light, minute insects intruding from
outside air intake (OA) may enter into indoor spaces through the air filter.
In such cases, consider full-scale anti-insect measures, such as a filter box (to be
locally procured), in the design stage.
Attach the indoor air exhaust grill (SA) and the indoor air intake grill (RA) in a location
where short circuit will not occur.
Using flexible or silent ducts as the duct to be connected to the indoor air outlet (SA)
can be effective in reducing air exhaust noise.
Select materials considering the fan speed required for the unit's application and
noise/sound levels. Refer to the technical documentation for the selection of material.
Be sure to locate the indoor air supply grille (SA) and the indoor exhaust air grille
(RA) in the same living space.
Locating them in different living spaces can cause noises coming from the gap in the
door or smells moving between sections. It can also cause the doors to open and
close by themselves or make the door difficult to close.
VAM1500-2000HVE
5
DUCT CONNECTION
Follow the instructions below to connect ducts.
Use the duct applicable to the model of the unit used.
Do not connect ducts as shown in the figure on the right (Examples of prohibited duct
connection).
Follow the minimum bending radius for flexible ducts specified in the catalog of the
flexible ducts used.
To prevent air leakage, wind aluminum tape around the section after the duct
connector and the duct are connected
Be sure to insulate the ducts and duct connectors ① (accessory) to prevent
condensation.
(Material: Glass wool of at least 25mm thickness)
In cold areas where outside temperature falls below -10°C, provide
insulation for the indoor duct (SA) to prevent condensation.
If the level of temperature and humidity inside the ceiling is constantly high, be sure to
install ventilation equipment inside the ceiling.
Insulate the duct and the wall electrically when a metal duct is passed through a
metal lattice, wire lattice, or metal lining of a wooden structure.
If windows and road lighting equipment are close to the air intake (OA) of suburban
buildings and insects tend to swarm around the light, minute insects intruding from
outside air intake (OA) may enter into indoor spaces through the air filter.
In such cases, consider full-scale anti-insect measures, such as a filter box (to be
locally procured), in the design stage.
Attach the indoor air exhaust grill (SA) and the indoor air intake grill (RA) in a location
where short circuit will not occur.
Using flexible or silent ducts as the duct to be connected to the indoor air outlet (SA)
can be effective in reducing air exhaust noise.
Select materials considering the fan speed required for the unit's application and
noise/sound levels. Refer to the technical documentation for the selection of material.
Be sure to locate the indoor air supply grille (SA) and the indoor exhaust air grille
(RA) in the same living space.
Locating them in different living spaces can cause noises coming from the gap in the
door or smells moving between sections. It can also cause the doors to open and
close by themselves or make the door difficult to close.
Attach the connection chamber (optional accessory) according to its installation manual.
English
VAM-HVE/HVLT Series
① .
Signifi cantly reduce the diameter
Extreme bend Multi bend
of the connection duct.
(Reduce the duct diameter halfway)
Examples of prohibited duct connection
①
Duct connector
Outdoor duct
Outdoor
(accessory)
Duct
Insulation material
Aluminum tape
(locally procured)
(locally procured)
Insulate securely all the
Wrap the tape so that air will
way to the surface on
not leak.
which the duct connector
is to be attached.
Duct connection Installation of indoor duct
<CAUTION>
Do not connect the duct to the inside of the duct connector ① (accessory). This may
cause reduced fan speed, unusual noise, or failure of the fan motor.
①
Duct connector Duct connector
(accessory) (accessory)
Duct
Duct
Signifi cantly reduce the diameter
Extreme bend Multi bend
of the connection duct.
(Reduce the duct diameter halfway)
Examples of prohibited duct connection
Outdoor
①
Duct connector
(accessory)
Duct
Insulation material
Aluminum tape
(locally procured)
(locally procured)
Insulate securely all the way to
Wrap the tape so that air will
the surface on which the duct
not leak.
connector is to be attached.
Duct connection Installation of indoor duct
<CAUTION>
Do not connect the duct to the inside of the duct connector ① (accessory). This may
cause reduced fan speed, unusual noise, or failure of the fan motor.
①
Duct connector Duct connector
(accessory) (accessory)
Duct
Duct
Installation Manual
A bend right next to the opening
for duct connection.
Main unit
Slope
1/30 or more
Avoid bends and curves in the
ducts to prevent water build-up.
①
A bend right next to the opening
for duct connection.
Main unit
Avoid bends and curves in the
ducts to prevent water build-up.
①
5
3P645058-1
127