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WARNING
Burn and scald hazard. Safety relief valve could
discharge steam or hot water during operation.
Install discharge piping per these instructions.
• Route pressure relief valve discharge piping to the floor.
Follow local code with respect to necessary distance to the
floor. See Figure 5-3.
• Verify all valves are closed.
• Connect supplied condensate trap to a drain. Verify there is
continuous slope towards the drain, avoid level horizontal
sections of tubing.
5.7 Heating System And Refrigeration
Boiler when used in connection with refrigeration system,
must be installed so chilled medium is piped in parallel with
the boiler with appropriate valves to prevent chilled medium
from entering the boiler.
Boiler piping system of hot water boiler connected to heating
coils located in air handling units where they may be exposed
to refrigerated air circulation must be equipped with flow
control valves or other automatic means to prevent gravity
circulation of the boiler water during the cooling cycle.
5.8 Available Pump Head for Central Heating
Design heating system to ensure minimum water flow rate
of at least 7.8 gpm (3250 L/H).
This high static head pump is fit for installation on any type
of single or double-pipe heating systems. Automatic air valve
incorporated in pump allows for quick air purging of heating
system.
5.9 Manifold Installation (supplied) See Figure 5-3
1.
Boiler is supplied with union connection installed on boiler
piping for connection to manifold.
2.
Configure manifold to suit the application.
Identify BOILER supply and return when
Note
installing manifold.
3.
Apply sealant and tighten manifold in place. Check for
leaks.
5 - HYDRONIC PIPING
13
P/N 240011662, Rev. D [06/30/2017]
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