Instruction Manual
36
No
Description
No
Description
No
Description
No
Description
1
User interface
(foil)
10
Ignition/Flame control
electrode
26
D.H.W. flow sensor/
Tank time regulator
54
Connector “ In System
Programming”-
microprocessor programming
3
User interface
(control
board)
15
Heating water
temperature limiter
27
NTC sensor of
D.H.W. temperature
P1
Button OFF/RESET
5
Fan
16
Fumes temperature
limiter
41
Room temperature
regulator
P2
Buttons SET
7
Pump
18
NTC sensor of heating
water temperature
42
NTC sensor of
outside temperature
P3
8
Gas unit
20
Heating water
pressure sensor 5V
44
Fuse
P4
Button-
9
Flame control
electrode
24
Heating water flow
sensor
51
3-way valve
CM
Blockade of extended mode of
control system configuration
M3
Connector
coupling PE
M5
Flame control
connector
JKEY
User interface
connector (foil)
ROP
Pump speed regulator
TWN
Spark gener-
ator
NTCP
NTC sensor of heating
water temperature
(return)
M13
User interface con-
nector
ROV
Fan speed regulator
6.3 THE MAINTENANCE OPERATIONS TO BE PERFORMED BY THE USER
The user should:
•
clean filters periodically, preferably before the heating season (filters should be replaced when worn out),
•
clean the domestic water filter if a decrease in water flow is observed,
•
refill the central heating system with water if a decrease in water pressure is observed,
•
vent (bleed) radiators if it is observed that their entire surface does not heat up completely (an indication that there is
trapped air),
•
periodically clean the boiler cover with water and detergent (avoid cleaners that cause scratches).
Fig. 6.2.1. Schematic diagram of the electrical connections
