REMEHA Avanta Plus 24s, Installation And Service Manual

Page: 86 / 153

22
AVANTA PLUS
System Option 19
System boiler - Internal time clock with simple weather compensated UF Heating and priority 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
AVS0021
Outside Sensor
Mount in a sheltered position
on North facing wall
1020
P3
High Temp
diverting valve
Local temp
control
Local temp
control
Under floor HTG
Under floor HTG
Low loss
header
System
pump
High output Calorifier
c/w DHW thermostat or
sensor
'A' HTG
'AB'
'B' DHW
Three way Diverting
valve - HTG or DHW
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
AVW0020
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
Two channel - 230v switching
c/w cable and plug
N
CH2 - DHW
CH1- HTG
1
L
5
3
2
4
N
L
Terminal
Block X6
2
1
DHW Temperature Sensor
(red band)
C
CALL
DHW Thermostat
(open on rise)
Diverting Valve
Power open to DHW
Spring return to HTG
Blue
G/Yellow
Brown
'A' HTG 'B' DHW
AB
Note:
Option to use either
Stat or Sensor