GTV
FORCED CONVECTION AIR HEATERS
User’s Manual
17
GTV-…CL centrifugal fan-type 20…58 kW
ATTENTION! The joint of pipes must be sealed and fixed! Not allowed longer flue system as the above
chart shows!
Enclosure 3.: Flue longs, allowed pressure drops
Type
A
a
b
c
d
M
D
e
GTV-20CL
470
350
600
350
500
1050
50
135
GTV-27CL
470
350
600
350
500
1050
50
135
GTV-33CL
610
500
600
400
550
1100
50
187
GTV-40CL
610
500
600
400
550
1100
50
187
GTV-48CL
750
650
600
450
600
1150
50
252
GTV-58CL
750
650
600
450
600
1150
50
252
Type
GTV-20A, C, CL GTV-27A, C, CL GTV-33A, C, CL GTV-40A, C, CL GTV-48A, C, CL GTV-58A, C, CL
Venting set
type
Maximal lenght of venting set Ø 100 mm [m]
B22
3
4
6
6
8
8
C12
3
4
6
6
8
8
C32
3
4
6
6
8
8
C52
3
4
6
6
8
8
Venting set
type
Maximal pressure drop of venting set Ø 100 mm [Pa]
B22
6
8
12
12
16
16
C12
6
8
12
12
16
16
C32
6
8
12
12
16
16
C52
6
8
12
12
16
16
•
See the following:
•
the pressure drop of 1m inox Ø100mm pipe is 2Pa
• elbow 90° is equal about 1m-length pipe (2-3Pa)
Supplement:
The fresh air supply and venting set can contain an elbow 90°� In case of use more elbows, you need to reduce the length
of fresh air supply and venting set, as follow:
It is allowed to use longer fresh air supply and venting set with isolation and condensate outlet. In
this case, contact the manufacturer!
