HTE boiler models 85 and 100 have a single gas valve (figure 12 a).
HTE boiler models 120 and 150 have a double gas valve (figure 12 b).
gas nozzle
mixer
IstructIons pErtaInIng to thE InstallEr
13. adjusting the gas valves
gas nozzle
Figure 12a
gas manifold
LEGEND:
Pi:
Gas supply pressure
connection point
P out: Pressure connection point for
measurement of the OFFSET
V:
Gas flow adjuster screw
K:
OFFSET adjuster screw
Figure 12b
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912.359.1 - IE