Remove pressure gauge cap. Connect a pressure gauge on the pressure measuring port on the rear guard. Start heater
and read air pressure value. If necessary adjust pressure to the correct value turning the adjusting screw (the air vent
hole in the adjusting screw middle) clockwise to increase, anticlockwise to decrease the pressure:
HIGH ALTITUDE ISTALLATION: Due to lower oxygen rate with reference to high altitude installation on sea
level, it may be necessary to reduce the compressor pressure (fig. 5). This setting adjustment can be necessary to
maintain a good combustion due to lack of Oxygen.
Electrical
Inspect cables, electrical parts and connections.
8. Wiring Diagram
Model
DH2-I-20C
DH2-I-30C
Fig.5
Air Pressure (bar)
0.36
0.36