Variable air volume controllers
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25
Accessories
Size
Ø D
(mm)
L
nom
(mm)
Ø D
1
(mm)
L
(mm)
m
(kg)
100-300
97
300
200
360
2,28
100-600
97
600
200
660
4,09
100-900
97
900
200
960
5,18
100-1200
97
1200
200
1260
6,46
125-600
122
600
224
665
4,39
125-900
122
900
224
965
6,2
125-1200 122
1200
224
1265
7,47
150-600
147
600
250
600
5,37
160-600
157
600
260
670
5,37
160-900
157
900
260
970
7,48
200-600
197
600
300
685
6,9
200-900
197
900
300
985
9,74
250-600
247
600
355
600
8,55
250-900
247
900
355
900
11,7
315-600
312
600
415
600
11,8
315-900
312
900
415
900
16,3
355-900
352
900
560
900
25,2
400-900
397
900
600
900
24,3
LDC
Circular Attenuator
L
ø D
ø D1
Circular silencer LDC designed to fit directly to Optima-R
and Optima-RI VAV terminal units. The inlet and outlet
connection complies with the spiral duct standard.
The LDC effectively reduces noise levels on the discharge
of the VAV unit or in the duct work. Two silencers can
be used in series together in installations where noise
reduction is a particularly strong requirement, this can
be very effective. For the most effective noise reduction,
the silencer should be fitted immediately downstream
of the VAV terminal unit and before the accessories such
as Optima-R-MO (Round Multi-outlet units) or after the
Accessories such as VBC (Water Batteries). The silencer
is delivered in various fixed lengths and is insulation
thickness 100 mm. All LDC silencers are fitted with
tightness rubber gasket to assure leak less connection. MK
can be used to facilitate the connection and mounting of
the system.
