32
6.4 Trim Piping
• Temperature - Pressure Gauge. Install temperature
pressure gauge using piping provided with boiler. See
Figure 6-1.
• Some boiler models may have integral drain valve located
inside jacket directly underneath pump. Install provided
external drain valve as required.
6.5 System Piping
• Ensure plugs are removed from boiler water connections.
•
See Figure 6-7 for basic system piping configurations.
•
Systems with automatic fill valves require back flow
prevention device.
• Single boiler system. See Figures 6-3, 6-7, for general
guidance. Additional considerations:
• Boiler control only supports integrated pump. Installer
responsible for integration of multiple central heating
pumps using field supplied external control.
• Boiler control allows domestic hot water
prioritization.
WARNING
Burn and scald hazard. Verify all plastic caps are
removed from boiler connections. Failure to follow
these instructions could result in death or serious
injury.
!
•
Thoroughly flush all hydronic piping.
•
Secure all valves/fittings to boiler.
• Manufacturer recommends installing an isolation and purge
valve to use during commissioning to ensure the boiler does
not shut down due to over-temperature. See figure 6-3 and
6-7 for details.
•
Do not install isolation valve between boiler and any field
installed LWCO.
• Ensure washers supplied are utilized.
• If soldering piping to boiler, avoid over heating and
damaging seals and gaskets.
• Connect system valve pipe work to the boiler.
•
Route pressure relief valve discharge piping to the floor.
Follow local code with respect to necessary distance to the
floor.
See Figure 6-2.
6 - HYDRONIC PIPING
240013354 REV A [07/01/2021]
Summary of Contents for Utica Boilers MAC-115
Page 2: ...MAC 205...
Page 4: ...MAH 165...
Page 77: ...73 APPENDIX A WIRING DIAGRAMS A 2 MODEL 125 Heat Only 240013354 REV A 07 01 2021...
Page 78: ...74 APPENDIX A WIRING DIAGRAMS A 3 MODEL 165 Heat Only 240013354 REV A 07 01 2021...
Page 79: ...75 APPENDIX A WIRING DIAGRAMS A 1 MODEL 115 Combi 240013354 REV A 07 01 2021...
Page 80: ...76 APPENDIX A WIRING DIAGRAMS A 4 MODEL 150 Combi 240013354 REV A 07 01 2021...
Page 81: ...77 APPENDIX A WIRING DIAGRAMS A 5 MODEL 205 Combi 240013354 REV A 07 01 2021...
Page 117: ...34 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Page 118: ...35 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Page 119: ...36 115 COMBI WIRING DIAGRAM MODEL 115 Combi PN 240011430 REV O 07 01 2021...
Page 120: ...37 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Page 121: ...38 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV O 07 01 2021...
Page 126: ...43 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV O 07 01 2021...
Page 131: ...48 3 FAULT SOLUTION SECTIONS PN 240011430 REV O 07 01 2021...