21
Overview of connections
A
B
C
D
E
F
G
H
Fig. 11
A
Female connection for control equipment: R
½
B
Boiler flow: PN 6 DN 100 with sensor well for boiler
water temperature sensor
C
Female connection for pressure limiter: R
½
D
Safety connection (safety valve): R 2
E
Boiler return 2: PN 6 DN 100
F
Boiler return 1: PN 6 DN 100
G
Drain outlet: R 1
¼
H
Condensate drain: R
½
Note
Check the connection for the sensor well and the mini-
mum pressure switch (low water indicator) for tight-
ness.
Cleaning the condensate drain pipe and trap
Note
Clean the condensate drain pipe and trap at least once
a year.
Commissioning, inspection, maintenance
Checking all connections and the sensor well on the heating water side for
tightness
5816717
