23
AVANTA PLUS
Combi Option 20
Combi boiler - Internal time clock with simple weather compensated UF Heating and constant DHW
NOTE:
High temperature protection and local
temperature controls for the under floor
heating system not supplied by Broag
Suggested design of a low loss header
Broag part No : GL001
4
0
0
2
3
5
c
tr
s
3
3
0
c
tr
s
3
5
8
2
.5
90 x 90 Sq
Steel tube
2 x 1" BSP(F)
Boiler side
2 x 11/2" BSP(
System side
Condensate
22mm Gas
22mm
Flow
22mm
Return
230v Supply
AVS0020
Outside Sensor
Mount in a sheltered position
on North facing wall
Mains cold water
DHW
1020
P3
High Temp
diverting valve
Local temp
control
Local temp
control
Under floor HTG
Under floor HTG
Low loss
header
System
pump
Terminal
Block X9
3
5
4
2
1
7
8
6
Exist links
Terminal
Block X5
3
2
1
NOTE: Terminal blocks are not in line as shown - diagramatic only
AVW0021
Outside Sensor
(red band)
Remove
Exist link
L
N
E
230v - 3 Amp
Power Supply
(via switched spur)
Terminal
Block X2
Remove Exist
Plug from X2
5
4
2
3
1
Plug clock
into X2
Internal Time clock - Twin channel
230v switching c/w cable and plug
Note:Clock has DHW channel disabled for 24hr operation
N
CH2 - DHW
CH1- HTG
1
L
5
3
2
4
L
N
Terminal
Block X6
