Munchkin VWH High Efficiency Hot Water Supply Boiler Installation & Operating Instructions Manual page 33

MUNCHKIN 199VWH GAS VALVE
Fig. 6-2
MUNCHKIN 399VWH GAS VALVE
Fig. 6-3
START-UP PROCEDURES
THROTTLE ADJUSTER
(NOTE: IF FOR ANY
REASON THE THROTTLE
NEEDS TO BE
ADJUSTED
VERY IMPORTANT THAT
A "COMBUSTION
ANAYLYZER" BE USED
TO ENSURE SAFE AND
PROPER OPERATION.
TURN THE ADJUSTER
TO THE (+) TO
INCREASE GAS OR THE
(-) TO DECREASE THE
GAS SUPPLY. THIS
ADJUSTMENT COULD
AFFECT CO/CO%
LEVELS. MAKE SURE
THE LEVELS
CORRESPOND TO THE
CHART IN COMBUSTION
SETTINGS. )
,
IT IS
33