22
INSTALLATION
Low voltage legend
MO1
Low-voltage terminal board
INAIL
INAIL safety devices (accessory)
Tpa
Water pressure transducer (accessory)
Pmin
Water minimum pressure switch (accessory)
FL
Flow-meter (accessory)
PminG
GAS minimum pressure switch (accessory)
0-10V
0-10 V DC input
TA/OT
Room thermostat / Open Therm Interface (accessory)
SB/TB
Heater probe/Heater thermostat (accessory)
SE
Outdoor sensor (accessory)
SS
Primary circuit system probe in cascade (accessory)
SC
Secondary circuit sensor (accessory)
BUS 1
Bus Managing/Zone
24 V
24V exit
MODBUS
Modbus outlet
BUS 2
Bus Depending
SCH1
Main control board
SCH2
Display and control card
SM
CH flow temperature sensor
SR
Return probe
SF
Exhaust flue probe
TS
Water safety thermostat
TF
Flue gas thermostat
High voltage legend
MO2
High-voltage terminal board
AE
Power supply (230V ~ 50Hz)
PI
Central heating system pump
VLPG
LPG shut-off solenoid valve (accessory)
PB
Storage cylinder circulator
VC
2-way shut-off valve of thermal unit
VD
3-way DHW diverting valve
PC
Thermal unit circulation pump
PS
System circulation pump
AL
Alarm output
MOD 1
PWM/0-10V PC/PS output
MOD 2
PWM/0-10V PI output (not available at present)
IG
Main switch
FI
Mains filter
FU
Fuse
TR1
Ignition transformer
EA
Ignition electrode
ER
Detection electrode
VG1
Gas valve
VE1
Variable speed fan
Cable colour
b
brown
bl
black
g
yellow/green
gr
green
gra
grey
h
blue
o
orange
p
pink
r
red
v
violet
w
white
y
yellow
DESCRIPTION
Terminal strip
Terminals No.
Par. No.
Programmable input 1
MO1
24-25-26
116
Programmable input 2
MO1
21-22-23 (Flow-meter)
21-22 (Flow switch)
117
Programmable input 3
MO1
19-20
118
Programmable input 7
MO1
9-10
122
Programmable input 8
MO1
27-28
123
Programmable input 9
MO2
13-14
188
Programmable output 1
MO2
16-17-18
125
Programmable output 3
MO2
7-8
127
Programmable output 4
MO2
12-13-14-15
128
Programmable output 5
MO2
9-10-11
187
The input and output settings not shown must not be changed.
Содержание TAU Unit 100
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