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Gas and Air Adjustments
PELLERIN MILNOR CORPORATION
Figure 4: 64058TG1 and 7272TG1x Combustion and Main Air Pressure Switches
Combustion Air Pressure
Switch
Main Air Pressure Switch (Fireye)
Main Air Pressure Switch (Landis & Gyr)
P
G
A
B
C
Legend
A.
Low combustion air
pressure switch
B.
Combustion air gauge
point
C.
Combustion air needle
valve
P.
Plenum air gauge point
G.
Plenum reference point
needle valve
H.
Main air needle valve
I.
Main air pressure switch
M.
Main air gauge point
FF.
Landis & Gyr flame
control reset
.
Figure 5: Mount manometer horizontally for
combustion air adjustment
Figure 6: Modulating gas valve Y
minimum adjustment
62
Summary of Contents for 7272TG1L
Page 6: ......
Page 8: ...2 ...
Page 46: ...40 ...
Page 47: ...Section 1 Service and Maintenance 41 ...
Page 103: ...Section 2 Drive Assemblies 97 ...
Page 131: ...Section 3 Gas Assemblies 125 ...
Page 148: ...142 ...
Page 149: ...Section 4 Steam Assemblies 143 ...
Page 155: ...Section 5 Pneumatics 149 ...
Page 166: ...160 ...
Page 167: ...Section 6 Door Assemblies 161 ...
Page 176: ...170 ...
Page 177: ...Section 7 Water Assemblies 171 ...
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Page 183: ...Section 8 Installation Drawings 177 ...
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