15
The correct flame pattern should be viewed by looking through the view port on top of the unit (Fig. 22).
The correct flame pattern of pilot and main burner are shown in figures 23, 24, 25 and 26.
PRIMARY FLAME: 1/4´´ - 3/8´´ (6 - 10 mm)
SECONDARY FLAME: 2´´ - 4´´ (50 - 100 mm)
Fig. 23
Correct main burner flame pattern
THERMOCOUPLE
PILOT FLAME
Model DVEL 20
Models
DVEL 8
and 12
Fig. 24
Correct pilot burner flame pattern
PILOT FLAME
THERMOCOUPLE
P R IMA R Y FLA ME
S E C O N D A R Y F L A M E
Fig. 25
Correct main burner flame pattern (top view)
Models DVEL 8 and 12
S E C O N D A R Y F L A M E
PR IM A R Y FLA ME
THERMOCOUPLE
PILOT FLAME
Fig. 26
Correct main burner flame pattern (top view)
Model DVEL 20
Cleaning the Main Burner Orifice and Main Burner
1. Turn OFF gas supply to the heater.
2. Remove casing assembly.
3. Disconnect burner tubing and remove orifice holder.
4. Apply compressed air the orifice holder assembly to remove dust, lint or spider webs.
5. Apply compressed air through the hole on the combustion chamber wall where the orifice holder was originally
located to remove dust, lint or spider webs.
6. As parts are being replaced in reverse order, check for gas leaks at all gas connections before replacing the
casing assembly.
Содержание DVEL 12
Страница 13: ...12 OPERATION CONTINUED Pilot Burner...
Страница 14: ...13 POUR COUPER L ADMISION DE GAZ DE L APPAREIL Veilleuse ALLUMAGE...
Страница 20: ...19 Model DVEL 8 19...
Страница 21: ...Model DVEL 12 20...
Страница 22: ...Model DVEL 20 21...