Installation / Operation Instruction Manual

Page 76
B RADFORD W HITE
Inlet gas pressure
High re CO
2 adjustment
(under cap)
Gas
pressure
tap
Low re CO
2
adjustment
Outlet gas
pressure
Inlet gas
pressure
Outlet
gas pressure
Gas pressure tap
Outlet Gas
Pressure
(manifold
pressure)
Figure 47. Gas Valve
600 - 850 Mbtu
600
The Gas Valve in the 600 is at the front of
the unit and can be reached after the front
panel is pulled forward and then o󰀨.
The Gas Valve in the 750 and 850 models
can only be reached by removing the top
panel of the unit. It cannot be accessed from
the front like the smaller units.
Always be patient with your combustion
analyzer when making adjustments to the
valve at both Hi-Fire and Low-Fire.
Be sure to put the cap back onto the
valve when you are done making your
adjustments at the gas valve.
750, 850
under
cap
under
cap