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3.20 -
FUNCTIONAL FLOW WIRING DIAGRAM
= Minimum water pressure switch
DK
= Ignition electrode
E. ACC
= Detection electrode
E. RIV.
= Power switch On-Off
IG
= Motor 3 way valve (optional)
MDV
= Pump
P
= Smoke Pressostat
PF
= CH sensor
SR
= CH return sensor
SRR
= DHW sensor (optional)
SS
= Limit thermostat
TL
= Smoke thermostat (only pre-arrangement)
TF
= High limit thermostat exchanger
TSC
= Ignition transformer
TR.ACC
= Gas valve
VG
= Modulating fan detection/adjustment
VM
CSD - 1
Prearrangement for the
connection of the
additional safety devices
5
4
2
1
2
3
TA
E8
SRR SR
PF
Instructions for the installer
YEL/GREEN
BLUE - N
BROWN - L
SL
E. RIV.
31
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