Precautions ........................................................................................ 4
iNTRoDuCTioN .................................................................................... 6
qualifications ..................................................................................... 6
High Limit Switch ............................................................................... 7
uncrating ........................................................................................... 7
Recovery Capacities .......................................................................... 8
Clearances ........................................................................................ 9
Insulation Blanket ............................................................................ 10
Hard Water ...................................................................................... 10
Circulation Pumps ...................................................................... 10-11
Power Supply .................................................................................. 12
Thermal Expansion .......................................................................... 13
Contaminated Air ............................................................................. 14
air Requirements ............................................................................. 14
unconfined Space ........................................................................... 15
Confined Space ............................................................................... 15
Exhaust Fans ............................................................................................15
Louvers and Grilles ...................................................................................15
Venting ............................................................................................. 15
taBle of contents
Code Restrictions ............................................................................ 21
Heater Wiring ................................................................................... 22
Gas Piping ....................................................................................... 23
Purging ............................................................................................ 23
oPERaTIoN ......................................................................................... 24
General ............................................................................................ 24
Filling ............................................................................................... 24
Adjustments ..................................................................................... 24
Checking Venting ............................................................................. 26
Igniter assembly .............................................................................. 26
Main Burner ..................................................................................... 26
Gas Valves ....................................................................................... 26
Checking the input ........................................................................... 27
mAiNTeNANCe ................................................................................... 28
Venting system ................................................................................ 28
Hot Water odor ................................................................................ 28
Deliming solvents ........................................................................... 30
System Diagnostics ......................................................................... 31
SeRViCe .............................................................................................. 32
electrical Servicing ............................................................................... 32
Start up Conditions .......................................................................... 32
MaNIFolD KITs .................................................................................. 50
NoTEs ............................................................................................ 51-54
WaRRaNTY ......................................................................................... 55
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