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Fig. 17
D.
Auxiliary heating by boiler with 3 port mid position valve system
- no reheat control by solar controller.
NOTE: Must use 2 port safety valve supplied with cylinder
3A Fused Supply
L
N
E
PL
L
1
2
3
4
1
1
2
3
4
5
6
8
5
7
3
3
1
2
3
E
G/Y
Solar Cylinder Auxiliary Controls
4
9
2
3
2
1
2
N
G/Y
BL
Room Stat
3 Port Mid Position Valve
3
6
2
11
12
PE
L
N
A1
N
T1
Solar Differential Controller
Solar
Controller
1
6
3
1
2
E
Solar O/Temp Cutout
E.
Auxiliary heating by boiler with 3 port mid position valve system
- reheat control by solar controller.
NOTE: Must use 2 port safety valve supplied with cylinder
3A Fused Supply
Boiler Terminal Strip
L
N
E
L
L
1
2
3
4
1
1
2
3
4
5
6
8
5
7
3
3
1
2
3
E
G/Y
Solar Cylinder Auxiliary Controls
3
G/Y
3
6
2
11
12
Relay
PE
L
N
A1
N
A3
Solar Differential Controller
1
6
3
A3
1
2
E
1
Solar O/Temp Cutout
16
© Baxi Heating UK Ltd 2011
Boiler Terminal Strip
N
E
SL
L
N
2
3
5
1
2
7
8
9
10
Terminal Box (Not supplied)
2
5
NOT USED
BL
BR
GR
OR
Cylinder Safety Valve
9
7
5
4
2
WH
GR
OR
L
N
CH Pump
See Fig. 13
A1
N
T2
T4
WMM
11
12
Solar Pump
Programmable Room Stat
N
E
SL
L
N
2
3
5
1
2
7
8
9
10
Terminal Box (Not supplied)
2
5
NOT USED
BL
BR
GR
OR
Cylinder Safety Valve
2
9
7
5
5
BL
WH
GR
OR
L
3 Port Mid Position Valve
CH Pump
See Fig. 13
N
T1
T2
T4
T5
WMM
N
1
8
5
CoM
No
Relay
9.0
Key to abbreviations:
Programmer
E
DHW ON DHW OFF
CH ON
3
8
7
4
3
E
The wiring schemes assume the use of an unvented Solar
PE
DHW cylinder.
E
NOTE: For open vented cylinders 1 to 6 connection is
required in the wiring centre.
These diagrams are presented for guidance only, terminal
numbers may differ between different manufacturers
equipment.
The various ancillary equipment manufacturers should be
consulted to confirm the correct operation of their products
within the system.
The Warranty only applies to equipment and controls supplied
with the Solarflo System.
1
2
1
9
2
3
N
E
A1
N
PE
11
12
E
Solar Pump
Installation of solar controller
L
-
Live
N
-
Neutral
E
-
Earth
PL
-
Pump Live
SL
-
Switched Live
G/Y
-
Green and Yellow
BL
-
Blue
BR
-
Brown
GR
-
Grey
OR
-
Orange
WH
-
White
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