ait-deutschland LD 45 RH 500 Notice De Montage page 26

UK | 8 Mounting preparations
7.3 Number of ventilation units
Combinations
Ventilation units
LD 45 O/K +
room air control
LDS 45 O/K
Up to 3 additional
LDS 45 K permitted
Ventilation units
LD 45 O/K +
power unit LDS 45 LT
Up to 3 LD 45 LT per-
mitted
LD 45 RC units
(wireless)
Ventilation units
LD 30 BO +
room air control
LDS 45 O
Ventilation units
LD 30 BK +
room air control
LDS 45 K or
power unit LD 45 LT
* Can be used as a stand-alone unit with an
external wall air opening (ALD) for volumetric
flow compensation.
26
Number of ventilation
units
Max. 6 LD 45 units
(3 x 2 unit pairs).
From star point, 25 m
cable connection length
to PP45 unit. Up to star
point, max. 4 m.
Max. 6 LD 45 units
(3 x 2 unit pairs)
per power unit.
From star point, 25 m
cable connection length
to power unit. Up to star
point, max. 4 m.
Only operate LD 45 RC
devices in pairs,
any number of pairs*.
Observe ranges.
3 LD 30 BO or
2 LD 30 BO +
2 LD 45 O/K or
1 LD 30 BO +
4 LD 45 O/K
Set up unit pairs for
LD 45 units, if possible.
From star point, 25 m
cable connection length
to LD 30-/LD 45 unit. Up
to star point, max. 4 m.
3 LD 30 BK or
2 LD 30 BK +
2 LD 45 O/K or
1 LD 30 BK +
4 LD 45 O/K
Set up unit pairs for
LD 45 units, if possible.
From star point, 25 m
cable connection length
to power unit. Up to star
point, max. 4 m.
8 Mounting preparations
8.1 Mounting information
● LD 45 units are only suited for supply air
rooms.
● LD 30 units are the ideal choice for
exhaust air rooms.
● Observe minimum spacing.
● Ensure sufficient space to work in front of
the unit  for filter change.
● The customer should provide appropriate
mounting material for mounting the wall
sleeve and external cover.
● Core hole diameter
condensate is removed via the external cov-
er, the core drill hole should have a 1 to 2 %
incline to the external wall. The condensate
is drained via the external cover. Recom-
mendation: To prevent dirt from depositing
on the façade around the external cover, fit
a water-repellent plaster system.
● Wall thickness LD 45 min. 265 mm,
wall thickness LD 30 min. 320 mm.
● LD 30: The slide-in unit (slide-in module
+ extension duct) must be appropriate for
the wall thickness to avoid a ventilation
short-circuit (lack of air). To ensure this,
shorten the extension duct accurately.
● LD 30: With wall thicknesses of 500 to 790
mm, use the optional LD 45 VS extension
kit. When installing, use the centring ring
provided for the extension.
● Observe permissible ranges for radio-con-
trolled units  Technical data LD 45.
● Select installation position so as to avoid
contamination and draughts.
● Only connect LD 45 O/K devices to power
modules LD 45 LT.
● In case of thin walls, use the compensating
frame LD 30 ARE (stainless steel) or LD 30
ARW (white). This frame can be screwed to
the wall with the fixing plate LD 30 ARE BB
or LD 30 ARW BB. Compensating frames
(depth 55 mm) are stackable.
162. To ensure that
Ø