1.5
MAIN COMPONENTS
Fig. 3
LEGEND
1 Cylinder
2 Cylinder drain cock
3 Cylinder expansion vessel.
4 Tun dish
5 Cylinder
temperature/pres-
sure relief
6 Air
relief
valve
7 Gas
valve
8 Zone 1 heating system
pump
9 Gas
rate
adjuster
10 Zone 1 non return valve
11 Condensation
trap
12 Heat exchanger air vent
13 Positive
pressure
intake
14 Negative
pressure
intake
15 Ignition
transformer
16 Ionisation
electrode
17 Main
exchanger
18 Ignition
electrode
19 Control
panel
20 Fan
21 Heating sensor (SM)
22 100°C safety thermometer
23 System pressure
relief valve
24 Water pressure transducer
25 Non return valve
27 Hot water cylinder pump
28 Flow switch assembly
31 Drain vent
32 Drain vent
33 Zone 2 heat pump
(optional)
34 Zone 2 single-acting valve
(optional)
35 Zone 3 single-acting valve
(optional)
36 Zone 3 heat pump
(optional)
37 Smoke stat
38 Filling loop (optional)
PUMP KIT 2/3 ZONE CONFIGURATION
(Cod. 8100700/8100710)
FILLING LOOP CONFIGURATION
(Cod. 8091810)
9