15INSTRUCTION MANUAL AIR HEATER TYPE TR
O
D
O
d
HOH
TR20-28 TR40-50 TR60-150
A 1280 1360 1850
B 500 550 955
d 80 100 130
D 125 150 200
HOH 110 140 225
A
B
Figure 14 - Vertical flue terminal TR
Model(s) Horizontal discharge
Flue terminal Art. Nr.
TR10 until TR28 CT 80/125 IA8113
TR40 until TR50 CT100/150 IA8112
TR60 until TR150 CT130/200 IA8312
6
0
0
m
a
x
3
0
0
OD
Od
HOH
1
8
0
Figure 15 - Horizontal flue terminal TR
5.1.1 Flue material
Only use CE marked flue material from the manufacturers
Muelink & Grol (M&G) and Burgerhout.
Use type Alu-fix with a minimum temperature class of
T200 P1.
Use flue pipes with the same diameter as the flue spigots
on the heater.
Contact your supplier to purchase these flue materials.
NOTICE Dierent manufacturers use dierent
connections systems for flue pipes. Do not combine
systems from dierent manufacturers.
5.2 Flue length (max.)
The maximum straight length between the air heater and
its flue terminal for both orientations is:
• Vertical: 9 meters.
• Horizontal: 6 meters.
Bends that are used in the connection between an air
heater and the flue terminal cause a decrease in pressure:
• Using a 90° bend decreases the maximum length
of the connection by 2 meters.
• Using a 45° bend decreases the maximum length
of the connection by 1 meter.
For further information regarding the flue system, please
contact your supplier.
5.3 Condensate in the flue system
Condensate can form in the flue system when the air
heater is heating up. This condensate will evaporate if the
heater is operating for a longer period of time. The forming
of condensate depends on the following factors:
5.3.1 Air heater type
Condensate is especially likely to form in the smaller
heaters (< 25 kW).
Condensate will most likely not form in the larger heaters
(> 25 kW).
5.3.2 Air heater location
When an air heater burns frequently and is placed in
a normally heated room (temperature above 15 °C),
condensate is unlikely to form.
Air heaters placed in a room that needs to be just above 5
degrees will only burn for short periods at the time. Formed
condensate will not evaporate in these short burning
periods. The condensate will accumulate and eventually
result in pressure switch errors. To prevent this:
• Add a T-piece (figure 16).
or
• Add a condensate drain (figure 17).