Download ACV E-Tech S 290 Specifications

8
r
230 - 240 V ac
bk- black
br- brown
r-red
w-white
y- yellow
o - orange
b - blue
v - violet
p - pink
gr - grey
CABLE COLOUR CODES
3 amp
MCB
bk
b
C
1
2
v
b
r
r
2
Lockout
Indicator
C
1
o
b
Remove Link If
Clock Used
w
o
o
C
o
Switch
Indicator
Panel
Heating
Switch
1
High Temp
Limit
(Auto Reset)
1.2.
p
2.2.
y
o
Panel
Stage 2
Switch
Panel
Stage 1
Switch
w
6
Switch
Indicator
Remove Link If
Option Used
5
Optional
External Heating
Clock or Stat
Boiler Stat
(78 - 53°C)
1.1.
o
2.1.
Boiler Stat
(85 - 60°C)
gr
v
w
w
15
11
Switch
Indicator
14
10
r
r
12
w
r
13
y
r
A1
A2
Stage 1
Delay
Timer
20
18
Stage 2
Power
Relay 1
b
b
7
M
8
Heating Valve
(Not Supplied)
r
Stage 1
Power
Relay 2
b
Stage 1
Power
Relay 1
Circulating
Pump
b
21
9
The control circuit is automatically powered from the power circuit. It is
also protected by a magneto-thermal circuit breaker.
PLEASE NOTE: Due to the potential risk of ELECTRIC SHOCK this section of the manual is intended for use
by a service engineer or qualified electrician, not the user
b
Switch
Indicator
br
Water
Pressure
Switch
br
Optional Internal External Clock Supply
19
Control circuit power supply
2
1
bk
Panel
On Off
Switch
High Temp
Limit
(manual reset)
Optional
Internal Or
External
Boiler Control
Clock
4 o
3
All bold numbers indicate a DIN rail terminal connection
E-Tech `S` Single Phase Control Circuit - With shunt circuit (factory wired)
INSTALLATION
ELECTRICAL CONNECTIONS
It is important to switch the boiler off before
carrying out any work.
Control wiring diagram