7
3 - COMPONENT LISTING
1
Condensate trap
2
Gas Valve
3
Fan
4
Air/gas Mixer
5
Heat exchanger
6
Burner sight glass
7
Manual air vent
8
Flue sensor
9
Coaxial flue connector
10
Exhaust test port
11
Intake test port
12
Exchanger flange high limit (#4 on
wire diagram)
13
Ignition/Flame detection electrode
14
Spark generator
15
Automatic air vent
16
Auxiliary control board box
17
Air/gas venturi
18
Pump
19
Boiler drain
21
Low water pressure switch
22
Thermal fuse (#6 on wire diagram)
A
Condensate trap drain
B
Gas inlet connection
C
Heating supply connection
D
Heating return connection
P/N 240011654, Rev. C [06/08/2017]
UCS-240