UTICA BOILERS MAH-100 Manual page 86

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
100, 125 W/Zone Circulators & DHW Tank - Piping Diagram ........................................................ 10
100, 125 W/Indirect Zone Circulators, DHW Tank W/Sensor - Wiring Diagram ............................... 11
100, 125 W/Indirect Zone Circulators & DHW Tank W/T-Stat - Wiring Diagram .............................. 12
100, 125 With Zone Valves & DHW Tank - Piping Diagram ........................................................... 13
100, 125 With Zone Valves, DHW Tank W/Sensor - Wiring Diagram .............................................. 14
100, 125 Zone Valves, DHW Tank W/T-Stat - Wiring Diagram ...................................................... 15
165 With Zone Circulators - Piping Diagram ............................................................................. 16
165 Indirect Zone Circulators, DHW Tank W/ T-Stat - Wiring Diagram ........................................... 17
165 With Zone Valves - Piping Diagram .................................................................................... 18
165 With Indirect Zone Valves, DHW Tank, Tank T-Stat - Wiring Diagram ...................................... 19
115, 150 & 205 With Zone Circulators - Piping Diagram .............................................................. 20
115, 150 & 205 With Zone Circulators - Wiring Diagram ............................................................. 21
115, 150 & 205 With Zone Valves - Piping Diagram ................................................................... 22
115, 150 & 205 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 ................................................................................................... 30
ndirect Storage Tank Sensor & Thermostat ............................................................................... 30
I
Wiring Diagrams
Single Zone Circulator Wiring Using Argo AR822-I ....................................................................... 32
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 Performance Chart ...............................................40
LWCO Wiring Diagram ...............................................................................................................41
Piping Diagram -LWCO Location ................................................................................................42
Low Water Cutoff - Detail ..........................................................................................................43
Error Code Table ........................................................................................................................44
Troubleshooting Chart ...............................................................................................................45
Fault Solution Sections ..............................................................................................................47
Parameter Change History ........................................................................................................51
TABLE OF CONTENTS
2
PN 240011430 REV. P [09/15/2021]