Installation manual

PART 7: GAS PIPING (CONTINUED)
MOD CON 500 GAS VALVE
Fig. 7-3 LP-205-BB Rev. 6/3/08
GAS VALVE
OR ATTEMPT TO MAKE ANY ADJUSTMENT TO
THIS SCREW WITHOUT A COMBUSTION ANALYZER
PRESSURE TAP
GAS PRESSURE
SWITCH BLOCK
GAS INLET
VALVE
GAS SHUT-OFF
PRESSURE TAP
GAS OUTLET
GAS INLET
GAS OUTLET
OFFSET ADJUSTMENT
CAUTION: DO NOT REMOVE THIS SCREW
GAS PRESSURE
SWITCH BLOCK
A
DETAIL A
SCALE 2 : 3
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 THE GAS
OR (-) TO DECREASE THE GAS SUPPLY. THIS
ADJUSTMENT COULD AFFECT CO/CO% LEVELS.
MAKE SURE THE LEVELS CORRESPOND TO THE
CHART IN COMBUSTION SETTINGS.
(FIG. 10-1)
GAS-FIRED HOT WATER SUPPLY BOILER Boiler Manual
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