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 7 of 19
Continuation 4.1 Specification, dimensions, technical data VFC-0
4.1.1 2-pipe system (VFC-0/2/.…/T/….)
Technical data
Size
n
[-]
U(
E
C
)
[V
]
V
[c
fm
]
L
A1
8
(A
C
)
[d
B
(A)]
L
wA
(A
C
)
[d
B
(A)]
Q
oF
/
Δ
t
1)
[BT
U
/h
*
Δ
t
Q
mF
/
Δ
t
1)
[BT
U
/h
*
Δ
t]
Q
mF
2)
[BT
U
/h
]
Q
se
n
s
mF
2
)
[BT
U
/h
]
w
o
/
Δ
p
w
[gp
m
]/
[Ft
H
2
O]
P
el
(A
C
)
[W
]
P
el
(E
C
)
[W
]
500
I
2.3
94
26
32
70.1
68.2
2,948
2,456
0.88 / 6.0
16
5
II
3.0
141
30
36
92.9
91.0
3,930
3,275
20
6
III
3.7
171
36
42
108.0
106.1
4,316
3,821
23
9
IV
4.3
200
40
46
121.3
121.3
4,804
4,367
25
11
V
5.3
253
46
52
138.4
138.4
5,377
4,981
31
17
630
I
2.3
100
25
31
91.0
81.5
3,521
2,934
0.88 / 6.7
16
5
II
3.0
153
29
35
111.8
111.8
4,831
4,026
20
6
III
3.7
182
35
41
128.9
128.9
5,241
4,640
23
9
IV
4.3
218
39
45
144.1
144.1
5,705
5,186
25
11
V
5.3
282
46
52
164.9
164.9
6,411
5,937
31
17
800
I
2.3
129
25
31
98.6
91.0
3,930
3,275
0.88 / 7.3
16
5
II
3.0
188
28
34
136.5
121.3
5,241
4,367
20
6
III
3.7
224
34
40
157.3
147.8
6,012
5,322
23
9
IV
4.3
271
38
44
180.1
174.4
6,905
6,278
25
11
V
5.3
341
45
51
199.0
199.0
7,738
7,165
31
17
1000
I
2.3
176
27
33
117.5
111.8
5,077
4,026
0.88 / 7.6
25
6
II
3.0
247
30
36
155.4
144.1
6,714
5,186
29
8
III
3.7
276
34
40
174.4
168.7
7,093
6,073
33
11
IV
4.3
335
38
44
197.1
193.3
7,806
6,960
36
16
V
5.3
424
46
52
216.1
216.1
8,400
7,779
42
26
1250
I
2.3
212
27
33
151.6
138.4
5,977
4,981
0.88 / 8.3
25
6
II
3.0
276
30
36
185.8
174.4
7,533
6,278
29
8
III
3.7
335
35
41
202.8
197.1
8,018
7,097
33
11
IV
4.3
406
38
44
219.9
214.2
8,482
7,711
36
16
V
5.3
46
52
242.6
235.0
9,137
8,461
42
26
1)
Specific cooling capacity (non condensing operation)
2)
Cooling capacity with the following parameters: water inlet 43 °F, air inlet: 79 °F, 50 % rel. humidity
n
- speed
U
- control voltage EC motor
V
- flow rate (approx. values, tolerance ± 10 %)
L
A18
- sound pressure level
L
wA
- sound power level ± 3 dB(A) (without casing)
Q
oF
- capacity (without filter)
Q
mF
- capacity (with filter)
Q
c
sens
mF
-
sensible cooling capacity (with filter)
Δ
t
- temp. difference between suction air temp. before
entering the heat exchanger and water supply
w
o
- standard water flow rate*
Δ
p
w
- water-side pressure loss
P
el
- electric power consumption AC motor (± 20 %)
P
el
(EC) - electric power consumption AC motor (± 20 %)
* Correction for other flow rates see section 4.4.
Speed control wiring diagram see page 28.
