Strebel S-FX 125, Руководство по установке, эксплуатации и техническому обслуживанию

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6.3 Flow & Return Connections
Before making the connection, carefully flush all the pipes of the system to remove residues or
impurties that
could affect the operation of the unit. See “water quailty” and “chemical water
treament” chapters.
S-FX
S-FX 70 S-FX 125 S-FX 220 S-FX 320
Flow Connection Size 1 ¼" Threaded 1 ¼" Threaded 2" Threaded DN65 Flanged PN16
Primary Return Connection Size 1 ¼" Threaded 1 ¼" Threaded 2" Threaded DN65 Flanged PN16
Secondary Return Connection Size 1 ¼" Threaded 1 ¼" Threaded 2" Threaded DN65 Flanged PN16
If the secondary return connection is NOT used then this must be blanked off by the
installation before filling the S-FX appliance.
.
The hydraulic connections are:
•
Connection A = Supply / Flow Connection.
•
Connection B = High Temperature Secondary Return Connection.
•
Connection C = Low Temperature Primary Main Return Connection.
Each return hydraulic connection has a premade pocket for the flow & return sensors to be inserted into as shown
in the above diagram labelled 1 & 2.
Ensure if the primary return connection is only used then insert the return into connection C not B.
Ensure if the secondary return connection is only used then insert the return into connection B not C.