Bradford White URG130T*N Series, Руководство по обслуживанию

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8
ECO Defender Series
8
Burner Inspection
At periodic intervals (every 6 months) a visual
inspection should be made of the pilot and main
burner for proper operation and to assure no
debris is accumulating.
Pilot flame should be stable, some causes for an unstable
pilot flame are:
a) Water heater vent is less than the allowable
vent length.
b) Gas pressure is out of specification.
c) Pilot flame not fully
engulfing spark/flame
sensor.
Main burner should light smoothly from
pilot and burn with a blue flame with a
minimum of yellow tips.
Main burner must be free from any
debris accumulation that may affect
burner operation (see burner cleaning
procedure below).
Burner Cleaning
Step 1. Position gas control knob to the
“OFF” position.
Step 2. Turn off gas supply to water
heater.
Step 3. Remove outer jacket door and inner door per
service procedure ED-X on page 21.
Step 4. Disconnect pilot tube (7/16” wrench) and
feedline (3/4” wrench) from gas control.
Step 5. Disconnect chamber door temperature sensor
from gas control.
Step 6. Disconnect resettable thermal switch’s white
and red wire leads from gas control.
Step 7. Remove burner assembly from combustion
chamber.