Baxi Power HT Series Installation, Operation And Maintenance Manual page 98

POWER HT models 1. 850 and 1.1000 have a single gas valve (figure 12 a).
POWER HT models 1. 1200 and 1.1500 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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910.001.1 - EN