13
5.5 Trim Piping
• Temperature - Pressure Gauge. Install temperature
pressure gauge using piping provided with boiler. See
figure 5-1. If using optional floor mount pedestal install as
close to boiler supply fitting as practical and visible.
• Boiler has integral drain valve located inside jacket directly
underneath pump. Install provided external drain valve.
5.6 System Piping
•
See Table 4 for basic system piping configurations.
•
Systems with automatic fill valves require back flow
prevention device.
•
Single boiler system. See figures 5-4, 5-5,
for general
guidance. Additional considerations:
• Boiler control is designed for single central heating
pump. Installer responsible for integration of
multiple central heating pumps.
• Boiler control allows domestic hot water
prioritization. Function could be lost if central heating
pump not directly connected to control system.
• Multiple boiler system.
See figures 5-6, 5-7, and 5-8
for
general guidance. Additional considerations:
• Control system requires equivalent water
temperatures entering each boiler to properly sequence
and adjust system supply temperature.
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.
• Ensure washers supplied are utilized.
•
Face valves and fittings to rear wall.
• Fit union bends to valves.
A. If soldering to boiler union bends, ensure bends are
not connected to the valves, otherwise internal seals
may be damaged.
B.
Verify 3/4" [22.2 mm] isolating valve with filter is
fitted to heating return connection.
C. Fit pressure relief valve connection vertically before
heating isolating valve.
• Connect system valve pipe work to the boiler.
5 - HYDRONIC PIPING
P/N 240011654, Rev. C [06/08/2017]
