26
3.15 - STANDARD PANEL BOARD
11 Main switch with indicator light
12 Burner switch
13 System pump switch
31 Safety thermostat
32 Working thermostat
41 General fuse
42 Boiler thermometer
Te1
Working thermostat stage 1
(60°C÷90°C)
Te2
Working thermostat stage 2
(54°C÷84°C)
Tm
Minimum thermostat (50°C)
Ts
Safety thermostat (100°C)
Ph
Phase (230V ~50Hz)
N
Neutral
F1
General fuse (max 4A)
Ib
Burner switch
IG
Main switch with indicator light
Ipi
System pump switch
Ta
Room thermostat
Pi
System pump
A
Possible repetition of burner block
B
Possible working hour counter stage 1
C
Possible working hour counter stage 2
If the Room thermostat is mounted,
remove bridge 11-12
The main switch 11 powers the board and the equipment con-
nected to it.
Switches 12 and 13 in turn cut power to the burner and to the
C.H. pump.
Thermostat 32 adjusts the working temperature of the boiler.
The working thermostat is provided with two switching contacts
to control the two-stage burners.
The differential between the two contacts is 6°C (not adjustable).
The minimum thermostat, which can only be accessed after
having lifted the cover of the electric control board, stops the
C.H. pump until the boiler reaches the temperature of 50°C.
The electric power line of the boiler's control board must have a
switch with protective fuses.
For use of the panel board, see the system manager instruction manual
7-pole plug
Plug stage 2
(optional)
