21
INSTRUCTION MANUAL
AIR HEATER TYPE TR
NOTICE
Because the high and low burner pressures
influence each other, always check both burner pressures
at least twice after any adjustment.
Inlet
Low setting
High setting
High/Low
Burner
Figure 21 - Main parts of the TR10 – TR50 gas valve
Inlet
Low setting
High setting
High/Low
Burner
Figure 22 - Main parts of the TR60 – TR125 gas valve
DANGER!
Always measure the air heater’s CO
production. Too much CO usually means the gas mixture
is too rich. Adjust this if necessary with the two adjusters
(figure 21/22/23).
The TR125 and TR150 are both equipped with two gas
control valves. The adjustment of the high and low burner
pressure settings is similar to that of the other models:
1. Measure and set the high and low burner pressures
at each individual gas control valve.
2. After the adjustment of the burner pressure, check
the burner pressure on each gas control valve.
Inlet
Low setting
High setting
High/Low
Burner
Figure 23 - Main parts of the TR125 and TR150 gas
valves
8.2 Converting to another gas type
CAUTION!
For safety reasons, the manufacturer
recommends that the air heater is converted to another
gas type only by the manufacturer, its representative or
a qualified service technician. Contact your supplier for
more information.
To convert the air heater to another gas type, the gas
injectors on the burner unit have to be changed. A
conversion kit is available for this:
1. Switch off the air heater.
2. Shut off the gas and electricity.
3. Disconnect the ignition and ionisation cables from
the burner unit.
4. Disconnect the burner manifold from the gas valve.
This is a clamp coupling.
5. Unscrew the screws that attach the burner mani-
fold to both ends of the endplates of the burner
unit.
6. Remove the burner manifold.
Summary of Contents for TR
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