MEGAFLO Eco SolaReady, Product Manual

Page: 19 / 52

INST
ALLA
TION
19
Diagram A
In conjunction with auxiliary heating boiler – no reheat control by solar differential controller.
3A fused supply Boiler terminal strip Programmer
N L L PL N SL L N DHW CH ON
N 1 2 4 N 5 3 N 7 6
Terminal box (supplied)
N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Link Link Link Link
8 9 N 10 1 5
1 2 3 GY BL BR GR OR
Cylinder auxiliary controls DHW 2 port valve
N 6 11 N 12 2 5 4 N
N 1 2 GY BL BR GR OR L N
Room stat CH 2 port valve CH pump
Solar o/temp
cutout
Solar pump
2 N 11 12 See fig 17 A1 N
PE L N A1 N A2 N T1 T2 T4 T7 11 12 E
Solar differential controller Solar pump
Solar
controller
1 L
NOTE: For boilers with pump over-run,
CH pump live supply should be connected
to terminal 5 in the terminal box.
1 2
Solar o/temp cutout
Diagram B
In conjunction with auxiliary heating boiler – reheat control via solar controller.
3A fused supply Boiler terminal strip Programmable room stat
N L L PL N SL L N 1 2
N 1 2 4 N 5 3 N 3 6
Terminal box (supplied)
N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Link
7 8 N 8 3 5
1 2 3 GY BL BR GR OR
Cylinder auxiliary controls DHW 2 port valve
N 6 2 5 4 N
GY BL BR GR OR L N
CH 2 port valve CH pump
Solar o/temp
cutout
Solar pump
2 N 11 12 7 N See fig 17 A1 N
PE L N A1 N A2 N A3 N T1 T2 T4 T5 T7 11 12
Solar differential controller Solar pump
Solar
controller
1 L
1 2
Solar o/temp cutout
Diagram C
Auxiliary heating by immersion heater – reheat control via solar controller.
Immersion heater
3A fused supply 13A fused supply
N L N L
N 1 N 8
N 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Solar o/temp
cutout
Solar pump Relay
2 N 11 12 1 5 See fig 17 A1 N
PE L N A1 N A2 N A3 N T1 T2 T4 T5 T7 11 12
Solar differential controller Solar pump
Solar
controller
Solar controller
N O T E : T h e a b o v e
wiring is for the lower
i m m e r s i o n h e a t e r
only. Switching of the
upper immersion heater
is not possible using the
solar differential controller.
1 L A3 N 8 9 9 N
1 2 1 5 COM NO L N
Solar o/temp cutout Auxiliary immersion heater Immersion heater
Key
L Live
N Neutral
GY Green & yellow
BL Blue
BR Brown
GR Grey
OR Orange
WH White
PL Pump live
SL Switched live
PE / E /
Protective earth
Figure 16 – Wiring diagrams