UTICA BOILERS MAH-125 Installation, Operation And Maintenance Manual page 74

Important Safety Information ....................................................................................................3
Labor Saving Piping Manifolds / Near Boiler Piping Connections ................................................4
General Information - Hydronic Piping .......................................................................................6
General Information - Wiring......................................................................................................7
Piping and Wirimg Diagrams
Piping Legend.......................................................................................................................8
125 Zone Circulator Pumps - Piping Diagram ................................................................9
125 W/ Indirect Zone Pumps, DHW Tank, Tank Sensor - Wiring Diagram .......................... 10
125 W/ Indirect Zone Pumps & DHW Tank, Tank T-Stat - Wiring Diagram ......................... 11
125 With Zone Valves - Piping Diagram ....................................................................... 12
125 With Zone Valves, DHW Tank, Tank Sensor - Wiring Diagram ................................... 13
165 Indirect Zone Valves, DHW Tank W/ Tank T-Stat - Wiring Diagram ............................ 14
165 With Zone Circulator Pumps - Piping Diagram ........................................................ 15
165 Indirect Zone Pumps, DHW Tank, Tank Sensor - Wiring Diagram .............................. 16
165 Indirect Zone Pumps, DHW Tank, Tank T-Stat - Wiring Diagram ................................ 17
165 With Zone Valves - Piping Diagram ....................................................................... 18
165 Indirect Zone Valve, DHW Tank, Tank Sensor - Wiring Diagram ................................ 19
165 Indirect Zone Valves, DHW Tank, Tank T-Stat - Wiring Diagram ............................... 20
150 & 205 With Zone Circulator Pumps - Piping Diagram ........................................................ 21
150 & 205 With Zone Pumps - Wiring Diagram..................................................................... 22
150 & 205 With Zone Valves - Piping Diagram ...................................................................... 23
150 & 205 With Zone Valves - Wiring Diagram ..................................................................... 24
Low Mass Piping and Wiring
Low Mass - Piping Diagram .................................................................................................. 25
Low Mass - Wiring Diagram .................................................................................................. 26
Optional Equimpment & Accessories
Outdoor Temperature Sensor................................................................................................27
Indirect Storage Tank Sensor & Thermostat ........................................................................... 28
Wiring Diagrams
125 - Heat Only Wiring Diagram ........................................................................................... 30
165 - Heat Only Wiring Diagram ........................................................................................... 31
150 - Combi Wiring Diagram ............................................................................................... 32
205 - Combi Wiring Diagram ............................................................................................... 33
Altitude Effects On Boiler Performance ..................................................................................... 34
Application Table - Indirect Tank Sizing.................................................................................... 35
Low Water Cutoff Application ................................................................................................... 36
TABLE OF CONTENTS
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PN 240011430 REV G, [03/31/18]