Bryant 234B - Manual (Page 10)

GAS PRESSURE REGULATOR
The gas pressure regulator, provided with all units
except those using LP Gas, is of the adjustable
spring loaded type. It functions to give a constant
gas pressure to the burners during all main line gas
pressure fluctuations. This regulator is factory
adjusted to produce 3" manifold pressure.
D6 CONTROLS - SELF-GENERATING
The D6-Control system consists of a powerpile ther­
mocouple, a Q314 Pilot Head and a self-generating
thermocouple and a combination valve.
The powerpile thermocouple transforms the heat
energy of the pilot flame into electrical energy
which operates the controls.
Should the pilot flame not be positioned correctly
on the powerpile thermocouple or the pilot flame be
out, there will be no heat energy, hence no electrical
energy-can be generdtedj
S E P / 0 2 / 2 0 0 8 / T U E 0 8 : 1 9 A M UTC TECH PUB F A X N o , 3 1 7 2 4 0 5 6 6 2
HIGH TEMPERATURE LIMIT
(Wafer Boilers Only)
The high temperature limit switch is a normally
closed switch which opens on temperature rise.
This limit has a cut-out set at 2 4 0 F and an adjust­
able range from 180^ F to 240 ^. F. .When the water
temperature reaches the cut-out setting the circuit
to the gas valve is broken and the gas valve closes.
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