Alfa
hot air gas-
fi
red air heaters
6
52.10.03.2017.eng
In support of engineering, installation, servicing, and maintenance
ALFA TOP Technical Parameters
ALFA ECO Technical Parameters
1 Air
fl
ow (rate) reach in free space, residual velocity 0.25 m.s-1 [m] (22°C, 60% by volume)
2 Flow rate (22°C, 60% by volume)
3 Internal gas line pressure must be stable, not
fl
uctuating by more than +-5% from the set
point and never exceeding the connection gas pressure limit.
4 Sound pressure equivalent A of the noise for unloaded unit, 5 m far away in the space
with average reference properties based on the measurements obtained as speci
fi
ed by the
applicable Czech Technical Standards (
Č
SN ISO 1996-1, 1996-2, 1996-3)
5 Sound pressure value based on the analysis results achieved in the space with
medium sound absorption coe
ffi
cient =1.0, 5 m far away.
6 With the IPX4 IP44 Kit installed, purchase order no. KIP4400001, protection by
covering is IP44
7 Hot air units for VERTICAL installation are normally delivered as WITHOUT COWL
FLAPS AND REMOTE CONTROL.
TYPE
ALFA TOP 19
ALFA TOP 29
ALFA TOP 39
ALFA TOP 49
ALFA TOP 62
Rated input, max.
kW
22.0
32.0
43.0
54.0
69.0
Rated input, min.
kW
17.0
20.8
27.9
35.1
44.9
Rated output, max.
kW
20.0
28.9
39.9
49.2
62.6
Rated output, min.
kW
15.6
19.2
26.4
32.3
41.5
E
ffi
ciency (max. input)
%
90.7
90.4
90.3
91.2
90.8
E
ffi
ciency (min. input)
%
91.8
92.5
94.0
92.1
92.5
NOx Class
mg/kWh
4
Δ
t (min.)
°C
24
25
23
26
31
Air
fl
ow reach
1
m
15
17
20
22
25
Air
fl
ow rate, max.
m
3
/h
3,400
4,400
5,900
6,700
7,000
Air
fl
ow rate, min.
m
3
/h
1,900
2,400
3,300
3,700
3,850
Unit electrical input
W
220
310
610
610
460
Number / Ø of fans
mm
1 / 400
1 / 450
1/500
1 / 500
2 / 400
Sound pressure level
4 | 5
dB(A)
54.9 | 50.1
58.7 | 52.6
61.1 | 58.3
63.3 | 58.1
61.9 | 60.3
Suction &
fl
ue extraction Ø
mm
100
Gas connection diameter
3/4”
1“
Connection gas pressure
3
kPa
1.8 - 4.0 +/- 5%
Electric connection
V
230 / 50 Hz
Fan// unit electrical covering protection
IP44 // IP20 (IP44
6
)
Gas consumption (max./min.)
m
3
/h
2.1/1.6
3.0/2.0
3.9/2.6
5.2/3.3
6.6/4.3
Weight
kg
81
96
111
119
128
Ordering No. – horizontal type
ALT19YHxxx
ALT29YHxxx
ALT39YHxxx
ALT49YHxxx
ALT62YHxxx
Ordering No. – vertical type
ALT19YHxxx
ALT29YHxxx
ALT39YHxxx
ALT49YHxxx
ALT62YHxxx
TYPE
ALFA 15 ECO
ALFA 25 ECO
ALFA 35 ECO
ALFA 45 ECO
Rated input, max.
kW
17.0
28.0
39.0
49.0
Rated input, min.
kW
14.7
18.2
25.4
31.9
Rated output, max.
kW
15.5
25.5
35.5
44.6
Rated output, min.
kW
13.6
16.8
23.4
29.4
E
ffi
ciency (max. input)
%
91.5
90.9
91.1
91.0
E
ffi
ciency (min. input)
%
92.5
91.9
92.5
92.3
NOx Class
mg/kWh
4
Δ
t (min.)
°C
25
27
29
24
Air
fl
ow reach
1
m
13
17
22
24
Air
fl
ow rate
m
3
/h
2,300
3,400
4,400
6,600
Unit electrical input
W
190
220
310
610
Number / Ø of fans
mm
1 / 350
1 / 400
1 / 450
1 / 500
Sound pressure level
4 | 5
dB(A)
53.1 | 48.5
54.6 | 49.6
58.4 | 52.2
62.2 | 58.9
Suction &
fl
ue extraction Ø
mm
100
Gas connection diameter
3/4”
Connection gas pressure
3
kPa
1.8 - 4.0 +/- 5%
Electric connection
V
230 / 50 Hz
Fan// unit electrical covering protection
IP44 // IP20 (IP44
6
)
Gas consumption (max./min.)
m
3
/h
1.6/1.4
2.7/1.7
3.7/2.4
4.7/3.0
Weight
kg
79
94
106
115
Ordering No. – horizontal type
ALE15YHxxx
ALE25YHxxx
ALE35YHxxx
ALE45YHxxx
Ordering No. – vertical type
ALE15YVxxx
ALE25YVxxx
ALE35YVxxx
ALE45YVxxx
