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I. circulator pump.................................................................................................. 33
J. drain valve....................................................................................................... 33
K. relief valve....................................................................................................... 34
L. flamerollout safetyshutoff..................................................................................... 34
M. (optional)externalcondensatepump......................................................................... 34
START-UP............................................................................................................ 34
A. watertreatmentandfreezeprotection........................................................................ 34
B. filling boiler with waterandpurgingair with diaphragmtypeexpansiontanks....................... 35
C. filling boilerwith waterandpurgingair with conventionalclosedtypeexpansion 35
tanks ............
D. placing boiler in operation ..................................................................................... 36
I. for your safety read before operating
II. operating instructions
III. to turn off gas to appliance
CHECK-OUT PROCEDURES AND ADJUSTMENTS ..................................................... 37
A. verify proper sequence of operation .......................................................................... 37
B. inspect venting and air intake system ........................................................................ 38
C. inspect condensate drain ....................................................................................... 38
D. inspect system piping .......................................................................................... 38
E. test ignition system safety shutoff ............................................................................ 38
F. test high limit control and adjust .............................................................................. 38
G. test other safety controls ....................................................................................... 39
H. set thermostat heat anticipator ................................................................................. 39
I. measure the gas input rate ...................................................................................... 39
J. set thermostat to desired room temperature .................................................................. 41
K. review all instructions .......................................................................................... 41
L. installation and check-out certificate ......................................................................... 41
MAINTENANCE AND CLEANING ............................................................................ 43
A. beginning of each season ....................................................................................... 43
B. daily during heating season .................................................................................... 43
C. monthly during heating season ................................................................................ 44
D. periodically during heating season ........................................................................... 44
E. end of each heating season-annual shut down procedure .................................................. 44
F. annual examination and cleaning of boiler components ................................................... 44
SERVICE HINTS .................................................................................................... 47
A. flow chart/detailed sequence of operation ................................................................... 47
B. trouble shooting ................................................................................................. 50
C. differential air pressure switch check ........................................................................ 58
REPAIR PARTS ..................................................................................................... 59
A. jacket and base assembly ....................................................................................... 59
B. condensate drain trap assembly ............................................................................... 61
C. block and piping assembly ..................................................................................... 62
D. mixer and air pressure switch assembly ..................................................................... 64
E. flue adapter and exhauster assembly ......................................................................... 66
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