Lochinvar 000 through 2 - Manual (Page 2)

TABLE OF CONTENTS
Warranty .......................................................................... 1
Safety Warnings .............................................................. 3
Codes
.......................................................................... 3
Installation Requirements ............................................ 4
Location .................................................................... 4
Clearances ................................................................ 4
Combustion/Ventilation Air Requirements .............. 5
Construction Air Filter.............................................. 7
Venting Systems ............................................................ 8
Category IV Venting ........................................................ 9
Flue Pipe Materials............................................ 9
Installation Guidelines ...................................... 9
Vent Length Requirements ................................10
Drain Tee Installation ........................................10
Vertical Terminations ........................................11
Sidewall Terminations ......................................12
Direct Vent Systems ........................................................13
Air Inlet Pipe Materials ....................................14
Air Inlet Pipe Length Requirements..................14
Vertical Direct Vent ..................................................15
Location Requirements......................................15
Multiple Direct Vent Installations......................16
Horizontal Direct Vent ..............................................16
Location Requirements......................................16
Multiple Direct Vent Installations......................18
Intelli-Vent Systems..................................................18
Materials ............................................................18
Length Requirements ........................................18
Vertical Flue - Sidewall Air ..............................19
Sidewall Flue - Rooftop Air ..............................20
Sidewall Flue - Sidewall Air..............................21
Gas Supply ....................................................................23
Gas Pressures and Piping ..................................23
Manifold Pressure..............................................23
Supply Pressure Measurement ..........................25
Manifold Pressure Measurement ......................26
Water Connections ..........................................................27
Heat Exchangers ..............................................................28
Integral Bypass ................................................................29
Valve and Pump ................................................29
Synchronization ................................................29
Set-up Maximum Flow......................................30
Bypass Operation ..............................................31
Minimum Water Temperatures ..................................31
Flow Switch ....................................................................32
Low Water Cut-Off ..........................................................32
Gas Train..........................................................................32
Relief Valve......................................................................33
Ratio Gas Valve ........................................................33
Diaphragm Gas Valve ..............................................33
Electrical Requirements ..................................................34
Jacket
..........................................................................34
Components and Controls ............................................35
Variable Frequency Drive..................................36
Low Air Pressure Switch ..................................37
Gas Pressure Switches ......................................37
Excel 10 Boiler Interface Controller ................37
2
Manual Override Control ..................................39
Temperature Adjustment....................................39
Command Display ............................................39
Password ....................................................40
Changeable Points ......................................40
Data Points in Display................................41
Status Points — Operation ........................43
Status Points — Alarm ..............................44
Outdoor Reset Function ............................44
Multiple Appliance Installations........................45
Sequencing Options....................................45
E-Bus Connection ......................................46
Temperature Limit Control................................48
Hot Surface Ignition Control ............................48
Hot Surface Igniter..............................49
Diagnostic Status LED........................49
Operation/Diagnostic Lights and Switches ......50
Burner Assembly ..............................................51
Combustion Air Blower ....................................52
Condensate Management System......................53
Installation and Operation ..................53
Condensate Trap Installation ..............54
Lighting Instructions ....................................................55
Sequence of Operation ..................................................57
Maintenance
............................................................58
Vent System ............................................................58
Flame Patterns ..........................................................58
Burner Cleaning........................................................59
Heat Exchanger Inspection ......................................61
Lubrication
............................................................62
Combustion Air Measurements ................................62
Freeze Protection ......................................................63
Heating Boiler ............................................................64
Piping ............................................................64
Piping Length and Diameter ....................................65
Integral Pump Limitations ................................65
Boiler Pump Operation......................................65
Primary/Secondary Piping ................................66
Minimum Water Temperatures ..........................66
Three Way Valves ..............................................67
Boiler Flow Rates ..............................................67
Placing the Boiler in Operation ........................68
Boiler Temperature Control ..............................69
Water Heater/Domestic Hot Water Supply Boiler ....70
Typical Piping....................................................70
Set-up Maximum Flow......................................70
Temperature Rise ..............................................71
Water Chemistry ................................................72
Piping Requirements ........................................73
Pump Operation ................................................74
Temperature Adjustment....................................75
Minimum Inlet Temperatures ............................75
Risk of Scald Warnings ....................................76
Relief Valve ......................................................76
Ladder Diagram ............................................................77
Wiring Diagram ............................................................78
Revision Notes ..............................................Back Cover