12 Electrical installation
Installation and operation manual
13
VAM350~2000J8VEB
Heat reclaim ventilation unit
4P664011-1 – 2021.08
Multi bend
Reduced diameter. Do NOT reduce the duct diameter.
▪ The minimum bend radius for flexible ducts is as follows:
(Øduct/2)×1.5
▪ To prevent air leakage, wind aluminium tape around the section
where the duct flanges and the ducts are connected.
▪ Install the opening of the supply air as far as possible from the
opening of the room air.
▪ Use ducts with a diameter that fits the unit model. See the data
book.
▪ Install the two outdoor ducts with a downward slope (minimum
1:50) to prevent entry of rain water. Also provide insulation for
both ducts, to prevent dew formation. (Insulation material: 25 mm
thick glass wool)
▪ If the temperature and humidity levels inside the ceiling are always
high, install ventilation inside the ceiling.
▪ Insulate the duct and the wall electrically when a metal duct has to
penetrate the metal lattice and wire lattice or the metal lining of a
wooden structure wall.
▪ Install the ducts in such a way that the wind CANNOT blow inside
the ducting.
▪ All 4 ducts MUST have a length ≥1.5 m (exception: VAM in
combination with optional EKVDX, see EKVDX operation and
installation manual).
Models 350~1000
b
c
a
d
a
Name Plate
Models 1500+2000
d
c
e
e
f
a
Aluminium tape (field supply)
b
Insulation material (field supply)
c
Duct flange (accessories)
d
Slope minimum 1:50
e
Supply air
f
Room air
INFORMATION
For more information about duct connections in
combination with an EKVDX module, refer to the installer
and user reference guide of the EKVDX unit.
12
Electrical installation
CAUTION
See
"2 Specific installer safety instructions"
3] to make
sure this installation complies with all safety regulations.
12.1
Component electrical
specifications
Model
350
500
650
800
1000
1500
2000
Power supply
Voltage
220~240 V ± 10%.
Frequency
50/60 Hz
MCA (A)
1.56
2.08
2.80
4.39
4.90
8.78
9.80
MFA (A)
6
6
6
6
6
16
16
Fan motor
P (kW)
0.08×
2
0.08×
2
0.106
×2
0.21×
2
0.21×
2
0.21×
4
0.21×
4
FLA (A)
0.62×
2
0.83×
2
1.12×
2
1.76×
2
1.96×
2
1.76×
4
1.96×
4
MCA
Minimum Circuit Amps
MFA
Maximum Fuse Amps
P
Motor Rated Load
FLA
Full Load Amps
NOTICE
When using residual current operated circuit breakers,
make sure to use a high speed type 300 mA rated residual
operating current.
NOTICE
The power supply MUST be protected with the required
safety devices, i.e. a main switch, a slow blow fuse on
each phase and an earth leakage protector in accordance
with the applicable legislation.
NOTICE
See the engineering data book for details.
