Full Product Manual

ii
Table of Contents
4.8 Expansion Tank and Makeup Water .....................................................................16
4.8.1 Diaphragm Expansion Tank ........................................................................16
4.8.2 Closed-Type Expansion Tank......................................................................16
4.9 Circulator .........................................................................................................16
4.10 Sizing Primary Piping ...........................................................................................17
4.11 Domestic Hot Water System Piping .....................................................................17
4.12 System Piping - Zone Circulators.........................................................................17
4.13 System Piping - Zone Valves ................................................................................17
4.14 System Piping - Through Boiler ...........................................................................17
4.15 System Piping - Radiant Heating..........................................................................17
4.16 System Piping - Special Application ....................................................................18
SECTION V - Installing Vent / Combustion Air & Condensate Drain
5.1 Installing Vent and Combustion Air .....................................................................22
5.2 Installing Condensate Drain Assembly.................................................................22
SECTION VI - Gas Piping
6.1 Gas Supply Piping Connection .............................................................................24
6.2 Natural Gas .........................................................................................................25
6.2.1 Pipe Sizing...................................................................................................25
6.2.2 Supply Pressure Requirements....................................................................25
6.3 Propane Gas .........................................................................................................26
6.3.1 Pipe Sizing - Propane Gas...........................................................................26
6.3.2 Propane Gas Supply Pressure Requirements ..............................................26
SECTION VII - Internal Wiring
7.1 General Requirements...........................................................................................28
7.2 Fuse Locations ......................................................................................................28
SECTION VIII - External Wiring
8.1 Installation Compliance ........................................................................................30
8.2 Line Voltage Connections .....................................................................................30
8.3 Circulator Wiring ..................................................................................................30
8.4 Alarm Wiring ........................................................................................................31
8.5 Low Voltage Connections .....................................................................................31
8.6 Thermostat Wiring ................................................................................................31
8.7 Outdoor Sensor Wiring .........................................................................................32
8.8 Domestic Hot Water Wiring..................................................................................32
8.9 Additional Boiler Limits .......................................................................................32
8.10 External Modulation Control ................................................................................32
8.11 System Sensor Wiring...........................................................................................32
8.12 Cascade Wiring .....................................................................................................32