1
Rectangular flexible connector –
AIR1-VS
Helios Ventilatoren
INSTALLATION AND OPERATING INSTRUCTIONS
1.0 Important information
In order to ensure proper functioning and personal
safety, all of the following instructions must be read
carefully and strictly observed.
1.1 Warranty claims – Exclusion of liability
If the following instructions are not observed, our
warranty shall not be valid. The same applies to
liability claims against the manufacturer. The use
of accessory parts, which are not recommended
or offered by Helios, is not permitted. Any possible
damages are not covered by the warranty.
1.2 Regulations - Guidelines
If the unit is installed correctly and used for its
intended purpose, it conforms to all applicable
regulations at its date of manufacture.
1.3 Receipt
The shipment must be checked for damage and
correctness immediately upon delivery. If there is
any damage, promptly report the damage with the
assistance of the transport company. If complaints
are not made within the agreed period, any claims
could be lost.
1.4 Storage
When storing for a prolonged time the following
steps must be taken to prevent damaging effects:
– Store the flexible connector in a dry, dust-free
place that is protected against direct sunlight.
– The storage location must be vibration-free,
waterproof and free of excessive temperature
fluctuations (10 °C to 20 °C). Damages due to
improper transportation, storage or commissio-
ning must be verified and are not covered by
warranty.
– Store the flexible connector in a strain-free en-
vironment without deformations and permanent
kinks.
1.5 Verification of suitability
Temperature-resistant -10 °C to +80 °C.
1.6 Area of application
The rectangular flexible connectors AIR1-VS are
flexible connectors for installation between the AIR1
ventilation unit and the duct system. They prevent
structure-borne sound transmission and allow length
adjustment during heating.
1.7 Type overview / Dimensions
2.0 Installation
Required tools:
Spanner, centring pins.
IMPORTANT!
Do not use sharp-edged tools!
m
Damage to the fabric must be avoided at
all costs!
Prior to installation:
– Check installation gaps/dimensions (see table
“Type overview / Dimensions”)!
– Clean duct and fan flange.
– The connection flanges must be flat, smooth and
free from burrs.
– The screw holes in the connection flange must
align.
– Check rectangular flexible connector for damage.
Installation AIR1-VS 30/15, 40/20, 70/40:
– The sealing lip on the flexible connector seals
directly against the duct flange (see Fig. 2).
– Insert and hand-tighten fixing screws.
– Additionally fasten t
he rectangular flexible con-
nector AIR1-VS 70/40 to the AIR1 unit with provi-
ded metal brackets according to Fig. 2.
–
m
Insert screws with the head to the bel-
lows. Otherwise, ensure that the screw pro-
trusion is short enough that damage to the
flange by the screw bolts is ruled out under
pressure stress and expansion absorption.
– Apply the required tightening torque (20 Nm for
screw size M8) for the flange screw connection
crosswise with a torque spanner.
Installation AIR1-VS 50/25, 50/30, 31/21, 35/31,
47/31, 58/41:
m
These types have pre-bending on one side.
This serves as a seal for the ventilation unit.
Install this side in the direction of the AIR1 ven-
tilation unit (see Fig. 3)!
– The sealing lip on the flexible connector seals
directly against the duct flange (see Fig. 5).
– Insert and hand-tighten fixing screws.
Fig.2
–
m
Insert screws with the head to the bel-
lows. Otherwise, ensure that the screw pro-
trusion is short enough that damage to the
flange by the screw bolts is ruled out under
pressure stress and expansion absorption.
– Apply the required tightening torque (20 Nm for
screw size M8) for the flange screw connection
crosswise with a torque spanner.
Installation AIR1-VS 85/41, 105/41, 120/41,
147/51, 160/71:
m
These types have a pre-mounted flange on
one side. This serves as a seal for the ventila-
tion unit. Install this side in the direction of the
AIR1 ventilation unit!
– The flange seals directly against the ventilation
unit and the sealing lip of the bellows seals di-
rectly against the duct.
– Insert and hand-tighten fixing screws.
– Screw the provided plastic brackets in the inter-
mediate hole on the ventilation unit to tighten the
flange against the ventilation unit (see Fig. 4)
–
m
Insert screws with the head to the bel-
lows. Otherwise, ensure that the screw pro-
trusion is short enough that damage to the
flange by the screw bolts is ruled out under
pressure stress and expansion absorption.
Fig.3
m
with pre-bending
Ref. no.
Item description
fits ventilation unit
Profile
Outside
A + B
Depth
C
Hole dim.
R + S
No. of metal
brackets
No. of plastic
brackets
Pre-
bending
Incl.
flange
07400 AIR1-VS 30/15
AIR1 XC 500
20
343 x 193
max.145
320 x 170
–
–
No
No
07403 AIR1-VS 40/20
AIR1 XC 700
20
443 x 243
max.145
420 x 220
–
–
No
No
07404 AIR1-VS 50/25
AIR1 XC 1400
20
543 x 293
max.145
520 x 270
–
–
Yes
No
07407 AIR1-VS 50/30
AIR1 XC 2200
20
543 x 343
max.145
520 x 320
–
–
Yes
No
07408 AIR1-VS 70/40
AIR1 XC 3200
20
743 x 443
max.145
720 x 420
2
–
No
No
04371 AIR1-VS 31/21
AIR1 XH 1000
20
363 x 258
max.145
343.3 x 238.3
–
–
Yes
No
04372 AIR1-VS 35/31
AIR1 XH 1500, RH 1500
20
398 x 358
max.145
378.3 x 338.3
–
–
Yes
No
04373 AIR1-VS 47/31
AIR1 XH 2500, RH 2000
20
518 x 358
max.145
498.3 x 338.3
–
–
Yes
No
04374 AIR1-VS 58/41
AIR1 XH 3500, XH 4500, RH 3000
20
628 x 458
max.145
608.3 x 438.3
–
–
Yes
No
04375 AIR1-VS 85/41
AIR1 XH 5500, RH 5000, RH 6000
20
905 x 466
max.220
883.3 x 438.3
–
2
No
Yes
04376 AIR1-VS 105/41
AIR1 XH 7000, RH 8000
20
1105 x 466
max.220 1083.3 x 438.3
–
4
No
Yes
04377 AIR1-VS 120/41
AIR1 XH 8500, RH 9500
20
1250 x 466
max.220 1228.3 x 438.3
–
4
No
Yes
04378 AIR1-VS 147/51
AIR1 RH 12000
20
1525 x 566
max.220 1503.3 x 538.3
–
6
No
Yes
04379 AIR1-VS 160/71
AIR1 RH 15000
20
1650 x 766
max.220 1628.3 x 738.3
–
8
No
Yes
Dim. in mm
R
A
S
B
C
10,5x14
Fig.1