2
1
Appliance description
1.1
Overview
2
1
3
Fig. 1.1
1 Case front panel
2 Control panel
3 Control panel cover
1.2
Control panel
4 C.h. circuit temperature and pressure gauge
5 Lock---out signal lamp
6 Lockout reset button
7 Function selector and c.h. temp. control knob
8 Service knob
9 Appliance operation lights
The service knob 8 is useless for the normal oper-
ation of the boiler.
It must be used only by a qualified person during
commissioning and servicing.
1.3
Isolation valves
11
10
13
12
Fig. 1.2 (bottom view of the boiler)
10 C.h. return valve
11 Gas inlet valve
12 Condensate drain pipe
13 C.h. flow valve
1.4
Technical data
For detailed technical data see section 4.5 of this
manual.
7
8
6
5
4
9
Fig. 1.3
USE