Trim Piping; System Piping - Baxi LUNA DUO-TEC 60 GA Installation Instructions For The Installer

5.4 Trim Piping

• Temperature - Pressure Gauge. Install temperature pressure gauge in near boiler piping.
• Some boiler models may have integral drain valve located inside jacket directly underneath pump. Install provided external
drain valve as required.

5.5 System Piping

• Ensure plugs are removed from boiler water connections.
• See Figure 5-6 for basic system piping configurations.
• Systems with automatic fill valves require back flow prevention device.
• Single boiler system. See Figures 5-2, 5-6, for general guidance. Additional considerations:
A. Boiler control only supports integrated pump. Installer responsible for integration of multiple central heating pumps
using field supplied external control.
B. Boiler control allows domestic hot water prioritization. Function could be lost if central heating pump is not directly
connected to control system.
• Thoroughly flush all hydronic piping.
• Secure all valves/fittings to boiler.
Burn and scald hazard. Verify all plastic plugs are removed from boiler connections. Failure to follow these
instructions could result in death or serious injury.
• Route pressure relief valve discharge piping to the floor. Follow local code with respect to necessary distance to the floor. See
Figures 5-1 .
• Verify all drain valves are closed.
240012485 REV C [06/30/2019]
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