Installation manual

PART 7: GAS PIPING (CONTINUED)
DETAIL B
SCALE 2:1.5
GAS VALVE
VALVE
GAS INLET
GAS PRESSURE
SWITCH BLOCK
B
PRESSURE TAP
INTERMEDIATE
GAS SHUT OFF
GAS OUTLET
GAS PRESSURE
SWITCH BLOCK
A
GAS OUTLET
PRESSURE
TAP
THIS ADJUSTMENT COULD AFFECT CO/CO% LEVELS.
MAKE SURE THE LEVELS CORRESPOND TO THE CHART IN THE
COMBUSTION SETTINGS SECTION (FIG. 10-1)
THROTTLE ADJUSTER
NOTE: IF FOR ANY REASON THE THROTTLE NEEDS TO BE
ADJUSTED, IT IS VERY IMPORTANT THAT A COMBUSTION
ANALYZER BE USED TO ENSURE SAFE AND PROPER
OPERATION. TURN THE ADJUSTER TO THE (+) TO INCREASE
GAS SUPPLY OR TO THE (-) TO DECREASE GAS SUPPLY.
GAS INLET
PRESSURE
TAP
DETAIL A
SCALE 2:1.5
OFFSET ADJUSTMENT
CAUTION: DO NOT REMOVE THIS SCREW OR ATTEMPT TO
MAKE ANY ADJUSTMENT TO THIS SCREW WITHOUT USING
A COMBUSTION ANALYZER.
MOD CON 850 GAS VALVE
Fig. 7-4 LP-205-O Rev. 5/27/08
GAS-FIRED HOT WATER SUPPLY BOILER Boiler Manual
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