Table of Contents
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Important Safety Information ........................................................................................ 3
Labor Saving Piping Manifolds / Near Boiler Piping Connections .................................... 4
General Information - Hydronic Piping ........................................................................... 6
General Information - wiring .......................................................................................... 8
Piping and Wiring Diagrams
Piping Legend ................................................................................................................. 9
75F, 100F, 125F w/Zone circulators & DHW Tank- piping diagram .....................................10
75F, 100F, 125F W/Indirect Zone circulators, DHW tank w/Sensor - Wiring Dia. ..................11
75F, 100F, 125F w/Indirect Zone circulators & DHW Tank w/t-stat - WIRING Dia. ................12
75F, 100F, 125F with Zone Valves & DHW Tank - PIPING Diagram ....................................13
75F, 100F, 125F with Zone Valves, DHW Tank W/Sensor - Wiring Dia. ...............................14
75F, 100F, 125F zone valves, DHW tank w/t-stat - wiring Diagram ....................................15
165F with Zone Circulators - PIPING Diagram .................................................................16
165F indirect Zone Circulators, DHW Tank w/ T-Stat - Wiring Dia. .....................................17
165F with zone Valves - PIPING Diagram .......................................................................18
165F with Indirect Zone Valves, DHW Tank, Tank T-Stat - Wiring Dia. ...............................19
115F, 150F & 205F with zone circulators - PIPING Diagram ..............................................20
115F, 150F & 205F with zone Circulators - Wiring Diagram ...............................................21
115F, 150F & 205F with Zone Valves - PIPING Diagram ...................................................22
115F, 150F & 205F with Zone Valves - Wiring Diagram ...................................................23
EXTERNAL buffer TANK - PIPING Diagram ......................................................................24
EXTERNAL buffer TANK - Wiring Diagram .......................................................................26
Optional Equipment ...................................................................................................... 29
CHART 1 -1k Ω OUTDOOR AIR SENSOR DATA .................................................................29
CHART 2 -10k Ω INDIRECT TANK SENSOR DATA .............................................................29
Accessories .................................................................................................................. 30
Outdoor Temperature Sensor Kit ...................................................................................30
Indirect Storage Tank Sensor ......................................................................................31
Wiring Diagrams
Single Zone Circulator Wiring Using ARGO AR822-II ........................................................32
75 & 100 - Heat Only Wiring Diagram ............................................................................33
125 - Heat Only Wiring Diagram ...................................................................................34
165 - Heat Only Wiring Diagram ...................................................................................35
115 - combi Wiring Diagram ........................................................................................36
150 - combi Wiring Diagram ........................................................................................37
205 - combi Wiring Diagram ........................................................................................38
Altitude Effects On Boiler Performance ......................................................................... 39
Application Table - Indirect Hot Water Tank Sizing ...................................................... 41
LWCO Wiring Diagram .................................................................................................. 42
Piping Diagram - LWCO Location .................................................................................. 43
Low Water Cutoff - Detail ............................................................................................. 44
Error Code Table ........................................................................................................... 45
Troubleshooting Chart .................................................................................................. 46
Fault Solution Sections ................................................................................................. 48
PARAMETER CHANGE HISTORY..................................................................................... 52
TABLE OF CONTENTS
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PN 240012875 REV. D [03/15/2022]
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