BLUEHELIX 25 K 50
5. TECHNICAL DATA AND CHARACTERISTICS
Table. 9 - Key of figures cap. 5
7 Gas inlet
10 System delivery
11 System return
14a DHW safety valve
14b System safety valve
16 Fan
32 Heating circulating pump
36 Automatic air vent
40 DHW expansion tank
44 Gas valve
56 Expansion tank
72 Room thermostat (not supplied)
74 System filling cock
81 Ionisation/ignition electrode
95 Diverter valve
114 Water pressure switch
5.1 Dimensions and connections
fig. 25 - Dimensions and connections
138 External probe (optional)
139 Remote timer control (optional)
154 Condensate drain pipe
180 Hot water tank
186 Return sensor
191 Fume temperature sensor
193 Trap
197 Manual vent
209 Hot water tank delivery
210 Hot water tank return
232 DHW safety valve
233 Hot water tank drain cock
243 Hot water tank temperature sensor
256 Modulating heating circulating pump signal
278 Double sensor (Safety + Heating)
350 Fan/Burner assembly
Ø 120/130
283
306
600
cod. 3541H130 - Rev. 00 - 09/2015
5.2 General view and main components
191
350
81
278
14b
40
193
114
95
32
44
7
10
fig. 26 - Front view
5.3 Water circuit
278
193
186
154
114
36
32
95
10
11
fig. 27 - Water circuit
11
180
243
40
74
232
209
210
EN
197
56
186
36
74
14a
233
56
233
43