Trim Piping; System Piping - ECR International Utica Boilers MAH-100 Installation, Operation & Maintenance Manual

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
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