3.696.5275.210
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Note: For all primary supply pipework connections, the use and / or type of
joint compound or sealer on the joint should be determined by referring to local
codes, accepted practices, or the requirements of the installing contractor.
Connecting the Condensate Return Line
Condensate Return Line
As the heat is extracted from the energy source and transferred to the clean steam
generating system, condensate will form.
The condensate return line should be connected to the unit at the condensate outlet
connection.
The exact location of this port for the specific unit, as well as the condensate return pipe
diameter and thread size, can be determined from the drawing supplied with the unit (Fig. 7).
The condensate line should be piped back into a condensate return system.
A manual shutoff valve should be installed downstream in the condensate return line to
allow the unit to be isolated from the system.
The condensate shutoff valve will prevent back flow of condensate if the line is disconnected.
Piping the Safety Valve to Vent and drain
All Spirax Sarco Compact Steam Generators are equipped with a pressure safety valve.
In most applications, the pressure safety valve should be vented to atmosphere (generally
through the roof). The piping used in the vent system
must be of adequate size to
handle the capacity of the pressure safety valve. The vent piping system should allow
for condensate drainage and should be piped to a to a suitable drain (Fig. 8). Piping the
pressure safety valve to a suitable vent and drain will prevent both water and heat damage
to the unit, as well as reduce the risk of injury from released steam. All safety discharge
pipework should comply with local codes. It is the responsibility of the purchaser / installing
contractor to assure this compliance.
The exact location of the pressure control valve for the specific unit, as well as primary
supply pipe diameter, can be determined from the drawing supplied with the unit.
Condensate return line
Fig. 7
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