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 10 of 19
Continuation 4.1 Specifications, dimensions, technical data VFC-0
4.1.2 4-pipe system (VFC-0/4/…./T)
Technical data
Size
n
[-]
U
(E
C
)
[V]
V
[c
fm
]
L
A1
8
[d
B(A)]
L
wA
[d
B(A)]
Q
co
F
/
Δ
t
1)
[BT
U
/h
*
Δ
t]
Q
cm
F
/
Δ
t
1)
[BT
U
/h
*
Δ
t]
Q
cm
F
2)
[BT
U
/h
]
Q
cs
e
n
s
2)
mF
[BT
U
/h
]
Q
ho
F
/
Δ
t
[BT
U
/h
*
Δ
t]
Q
hm
F
/
Δ
t
[BT
U
/h
*
Δ
t]
w
oc
/
Δ
p
w
[gp
m
]/
[Ft
H
2
O]
w
oh
/
Δ
p
w
[gp
m
]/
[Ft
H
2
O]
P
el
[W
]
P
el
(E
C
)
[W
]
500
I
2.3
94
26
32
64.4
53.1 2,293 1.911 39.8
36.0
0.88 / 4.3 0.44 / 0.83
16
5
II
3.0
141
30
36
87.2
85.3 3,685 3,071 53.1
53.1
20
6
III
3.7
171
36
42
102.4 102.4 4,162 3,685 60.7
60.7
23
9
IV
4.3
200
40
46
113.7 113.7 4,504 4,049 66.3
66.3
25
11
V
5.3
253
46
52
128.9 128.9 5,009 4,640 75.8
75.8
31
17
I
2.3
100
25
31
77.7
68.2 2,948 2,456 49.3
43.6
0.88 / 4.7 0.44 / 0.9
16
5
II
3.0
153
29
35
98.6
96.7 4,176 3,480 60.7
58.8
20
6
630
III
3.7
182
35
41
113.7 113.7 4,626 4,094 66.3
66.3
23
9
IV
4.3
218
39
45
127.0 127.0 5,029 4,572 73.9
73.9
25
11
V
5.3
282
46
52
144.1 144.1 5,599 5,186 81.5
81.5
31
17
I
2.3
129
25
31
89.1
79.6 3,439 2,866 55.0
49.3
0.88 / 5.3 0.44 / 1.0
16
5
II
3.0
188
28
34
121.3 113.7 4,913 4,094 72.0
68.2
20
6
800
III
3.7
224
34
40
140.3 134.6 5,473 4,845 79.6
77.7
23
9
IV
4.3
271
38
44
155.4 153.5 6,080 5,527 89.1
89.1
25
11
V
5.3
341
45
51
174.4 172.5 6,704 6,209 96.7
96.7
31
17
I
2.3
176
27
33
109.9 100.5 4,340 3,617 68.2
62.5
0.88 / 6.0 0.44 / 1.1
25
6
II
3.0
247
30
36
144.1 134.6 5,814 4,845 89.1
83.4
29
8
1000
III
3.7
276
34
40
161.1 155.4 6,322 5,595 102.4 96.7
33
11
IV
4.3
335
38
44
180.1 174.4 6,905 6,278 111.8 108.0
36
16
V
5.3
424
46
52
202.8 199.0 7,738 7,165 123.2 123.2
42
26
I
2.3
212
27
33
140.3 128.9 5,568 4,640 87.2
81.5
0.88 / 6.7 0.44 / 1.2
25
6
II
3.0
276
30
36
170.6 161.1 6,960 5,800 102.4 96.7
29
8
1250
III
3.7
335
35
41
185.8 182.0 7,492 6,551 115.6 109.9
33
11
IV
4.3
406
38
44
200.9 197.1 7,806 7,097 119.4 115.6
36
16
V
5.3
488
46
52
223.7 219.9 8,547 7,915 130.8 127.0
42
26
1
) Specific cooling capacity (non condensing operation)
2
) Cooling capacity with the following parameters: water inlet = 43 °F, air inlet = 79 °F , rel. humidity = 50 % rel.
n
- speed
U
- control voltage EC motor
V
- flow rate (approx. values, tolerance ± 10 %)
L
A18
- sound pressure level, 18 m² Sabine
L
wA
- sound power level ± 3 dB(A) (without casing)
Q
c oF
- cooling capacity (without filter)
Q
c mF
- cooling capacity (with filter)
Q
h oF
- heating capacity (without filter)
Q
h mF
- heating capacity (with filter)
Q
c
sens
mF
-
sensible cooling capacity (with filter)
Δ
t
- temperature difference between suction air temp.
before entering heat exchanger and water supply
w
oc
- standard water flow rate at cooling capacity *
w
oh
- standard water flow rate at heating capacity *
Δ
p
w
- water-side pressure loss
P
el
- electric power consumption AC motor (± 20 %)
P
el
(EC)
- electric power consumption EC motor (± 20 %)
* Correction for other flow rates see sectiion 4.4.
Speed control wiring diagram
see page 28.
