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3.2 Components and connections
E
Posi‐
tion
Description
Unit
TM 150
TM 200
TM 250
A
Boiler return connection
Inches
2½
2½
2½
B
Boiler flow connection
Inches
2½
2½
2½
C
Thermal discharge safety sensor connection
Inches
½
½
½
D
Flue gas pipe connection without FGR (flue gas recircula‐
tion)
mm
200
250
250
E
Flue gas pipe connection with FGR (flue gas recirculation)
mm
150
150
150
F
Broadband probe connection
Inches
3/4
3/4
3/4
F
Flue gas temperature sensor connection
Inches
1/2
1/2
1/2
Technology
3
Components and connections
Installation Instructions | M0650314_en
13