DT Series - Installation manual (V3_2020)
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Figure 9:
“C4” model only
Figure 10:
“C6” to “C12” models
•
The horizontal portion of the electrode must be aligned with the top face of the
retention plate.
•
Electrode gap m
ust be adjusted between 1/16”
and 1/8
”
•
For model C4, this gap is the distance between electrode tip and the burner nozzle.
For burner models C6 to C12, the gap is the distance between the electrode tip and
the edge of the orifice in the retention plate.
NOTE:
The flame detector illustrated is a flame rod. It could be replaced by a « UV » type
flame detector. In that case, the UV tube must be placed in the same support used to install
the flame rod.
11.3.
PILOT ADJUSTMENT
•
Turn ON main electrical disconnect and turn control panel selector to BURNER
position.
•
Close the manual burner gas valve located upstream of the electric valves. Open
pilot manual gas valve.
•
Ensure that there is no heat demand to gas modulating valve (low fire position).
•
Check pilot lighting sequence. Take a reading of the flame signal (5-10 VDC), and
adjust the signal corresponding to gas pressure available, after the pilot pressure
regulator, to get the optimum signal.
11.4.
COMBUSTIONS ADJUSTMENT
For the combustion test, it is recommended to use a (0-10 VDC) manual potentiometer to
simulate full modulation range of the burner.
