9
2.2 Dimensions
2.3 Hydraulic connections
pic. 2
pic. 3
1 Three-way valve
2 Low water pressure sensor
3 Circulating pump with built-in deareator
4 Ignition board
5 Gas valve
6 Ignition electrode
7 Burner
8 Detection electrode
9 Heat exchanger
10 Manual air purging valve
11 Temperature probe
12 Expansion vessel (heating system)
13 Optional expansion vessel (DHW system)
14 Water storage tank anode
15 Water storage tank
16 Water storage tank thermostat
17 Overheating shutdown sensor
18 Safety valve 3 bar
19 Safety valve 7 bar
20 Water storage tank drain cock
21 Flue gas safety thermostat
22 Filling tap
23 Adjustable by-pass
24 No-return valve
C DHW outlet
F Cold water inlet
G Gas supply
M Central heating flow
R Central heating return
Содержание NIAS BTN 28
Страница 1: ...NIAS INSTALLATION USE AND MAINTENANCE GB IST 03 C 167 01...
Страница 31: ...31...