6.4 CHECKS
6.4.1
A periodic visual check of the pilot and burner
flames should be made (see figs 30 and 31).
Check after the furnace has been on for at least 30
minutes.
6.4.2
The appliance area must always be kept clear and
free from combustible materials, gasoline and other
flammable vapors and liquids.
6.4.3
Keep the area in front at the bottom of the
appliance clear. Obstructions will impede the flow
of air to the appliance and cause incorrect
combustion.
6.4.4
The flow of combustion and ventilation air must not
be obstructed. The venting system should be
examined by a qualified agency regularly. We
suggest annually.
CORRECT MODELS 737CN, 737AN
CORRECT MODEL 737AP
WRONG
Fig. 30 Burner flames
21
Fig. 31 Pilot flame
