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R-5627 Page 23
Millivolt Control
The valve regulator controls the burner pressure which should be checked
at the pressure test point. Turn captured screw counter clockwise 2 or 3
turns and then place tubing to pressure gauge over test point (Use test
point “A” closest to control knob). After taking pressure reading, be sure
and turn captured screw clockwise firmly to re-seal. Do not over torque.
Check for gas leaks.
Millivolt thermopile is self powered gas valve and does not require 110
volts.
Check System Operation
Millivolt system and all individual components may be checked with a
millivolt meter 0-1000 MV range.
Standing Pilot Wiring Diagram (Figure 43)
Figure 43
Reassembly and Resealing Gas Accumulation Relief System
(Relief Doors) and Combustion Chamber
Whenever the relief door is pivoted open by a delayed ignition in the main
burner, the relief door gaskets and combustion chamber must be examined
by a qualified service person for damage. All damaged gaskets on the
relief door and combustion chamber must be replaced by a qualified
service person. If damage occurs to the combustion chamber, it must be
replaced by a qualified service person. Contact Empire Comfort Systems,
Inc. for replacement parts.