TEMPRA 30
6
2.03 Boiler water fl ow diagram
Fig. 3
2.02 Boiler main components
Key
5
Room sealed compartment
7
Gas inlet
10
Central
heating
fl ow
11
Central heating return
14
Safety
valve
16
Fan
19
Combustion chamber
20
Burner
assembly
21
Main injector
22
Burner
26
Combustion chamber insulation
27
Copper heat exchanger
28
Flue collector from heat exchanger
29
Internal fl ue exit
32
Central heating pump
34
Central heating fl ow temperature sensor
Fig. 2
36
Automatic air vent valve
43
Air pressure switch
44
Gas
valve
49
Safety overheat thermostat
50
Central
heating
fl ow limit thermostat
56
Expansion
vessel
62
Time clock (option)
63
Central heating temperature adjustment
81
Ignition electrode
82
Sensor
electrode
84
Primary gas valve solenoid
85
Secondary gas valve solenoid
98
On/Off/Reset switch
145
Central heating pressure gauge
187
Flue restrictor
RE
SE
T
O
FF
ON
0
5
1
2
3
4
6
bar
98
63
145
11
7
44
85
84
10
20
21
49
28
5
62
°
C
56
29 187
16
27
50
19
26
36
32
43
34
14
22
82
81
+
-
43
49
50
56
81
44
32
20
82
222
5
29-187
16
10
7
11
14
34
