Installation/Use/Maintenance Instructions
Fan coil units VFC, installation in sills
E
LTG Incorporated · PO Box 2889 · Spartanburg, S.C. 29304, USA
VFC_USA_BA (07/19)
Phone 864 599-6340, Fax -6344 · e-mail: [email protected] · Internet: www.LTG-INC.net
Former editions are invalid · Subject to technical modifications
page 12 of 19
Continuation 4.1 Specifications, dimensions, technical data VFC-0
4.1.3 Primary air supply by linear diffuser LDB (type VFC-0/4/…./…/../FL)
Specification
Fan coil unit special version with additional fresh air sup
ply. Via an adjustable LTG diffuser LDB, the air is blown out
in parallel to the tangential fan outlet. Optimum primary
air supply is ensured even with the fan at standstill.
Fan coil unit with one heat exchanger for heating and/or
cooling the ambient air.
Water-side control by valves.
Particularly small built-in depth and height, therefore es
pecially appropriate for a room-saving installation in sills.
Vertical installation. Water connection on the right or left.
Primary air socket front right or front left, always opposite
the water connection.
Dimensions, weights
Size
A
B
C
D
E
F
Weight
[inch]
[lb]
*
500
20.7
19.5
22.1
28.7
33.8
28.3
35
630
24.7
23.5
26.1
34.8
37.8
32.3
42
800
33.7
32.5
35.1
42.7
46.9
41.3
53
1000
41.6
40.4
43
52.5
54.7
49.2
64
1250
49.5
48.3
51
60.4
62.6
57.0
77
* approx. values, depending on exact model
Front view
KW-RL
WW-RL
WW-VL
KW-VL
Air outlet
Suspension from above = special version
Standard: bracket for rear-wall installation(separate accessory)
6.
5
6.5
61° angle of discharge
2.2
5.1
3.6
17.
8
3.2
0.79
16.
9
4.
1
3.
1
0.
79
7.
1
2.1
4.
3
0.
63
1.4
Lateral view right side
Length of drain tray dimension D
Air outlet dimension B
0.5
2.4
Unit length dimension A
1.
4
2.
1
1
Ø0
.6
3
3.
6
5.4
0.
86
Unit length dimension A
Total length dimension E
7.6
3.2
2.
8
dimension C
Unit suspension
1.
1
Ø0
.3
3
Air distribution box dimension F
2.2
2.
2
1.
6
3.
7
7.
9
8.
4
Rubber stop
to be ordered
separately acc.
to wall clearance
Top view
Connection primary air
for size 500 and size 630: DN 4.0“
from size 800: DN 4.9“
LDB
Illustration: 4-pipe unit
Technical data
see standard units type VFC-0/4/…./T and
type VFC-0/2/…./T. Acoustic data may vary according to
primary air rate.
The total sound power level may be calculated as
follows: L
wA
= 10 * log (10
0,1*L
wA P
+ 10
0,1 * L
wA
,
VFC
)
Sound power level L
WA
[dB(A)] for separate socket for
fresh air supply must be added to the unit's sound power
level:
Sound power level L
WA
[dB(A)]
Size
V
[cfm]
23.5
35.3
47
59
70.6
82.3
500
15
26
34
40
46
>45
630
15
23
31
37
42
>45
800
<15
28
25
32
37
41
1000
<15
<15
19
26
31
35
1250
<15
<15
<15
22
26
31
