4
G. Dierential Pressure Air Proving Switch/Blocked Vent Safety Shuto ................................................................................. 36
H. Dra Inducer ................................................................................................................................................................................ 37
I. Circulator Pump ............................................................................................................................................................................ 37
J. Drain Valve .....................................................................................................................................................................................37
K. A.S.M.E. Rated Pressure Relief Valve ........................................................................................................................................ 37
L. Blocked Vent Safety Shuto ........................................................................................................................................................ 37
M. External Condensate Pump (Optional) ...................................................................................................................................37
Piping Recommendations ................................................................................................................................................................38
Water Chemistry ................................................................................................................................................................................ 38
Cleaning the Hydronic System ........................................................................................................................................................39
Freeze Protection ...............................................................................................................................................................................39
A – Filling Boiler With Water And Purging Air For Systems With Diaphragm Type Expansion Tanks .............................. 40
B – Purging Air For Systems With Conventional Closed Type Expansion Tanks: ................................................................... 40
C - Placing Boiler In Operation .......................................................................................................................................................41
A. Verify Proper Sequence Of Operation ...................................................................................................................................... 42
B. Inspect Venting And Air Intake System ..................................................................................................................................... 43
C. Inspect Condensate Drain ........................................................................................................................................................... 43
D. Inspect System Piping ..................................................................................................................................................................43
E. Test Ignition System Safety Shuto Device ................................................................................................................................ 43
F. Test High Limit Control And Adjust ..........................................................................................................................................44
G. Test Other Safety Controls .......................................................................................................................................................... 44
H. Set ermostat Heat Anticipator (If Used) And Verify ermostat Operation .................................................................. 44
I. Measure e Natural Gas Input Rate ..........................................................................................................................................44
J. Set ermostat To Desired Room Temperature .........................................................................................................................45
K. Review All Instructions ............................................................................................................................................................... 45
Beginning Of Each Heating Season ................................................................................................................................................ 48
Daily During Heating Season ..........................................................................................................................................................48
Monthly During Heating Season ..................................................................................................................................................... 49
Periodically During Heating Season ...............................................................................................................................................49
End Of Each Heating Season - Annual Shutdown Procedure ..................................................................................................... 49
Annual Examination And Cleaning Of Boiler Components....................................................................................................... 49
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