Heatrae Sadia Megaflo Eco 125DD, Manual

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Figure 16: Wiring schematic - 2 x 2 Port valve heating system
Figure 17: Wiring schematic - 2 Port valve in conjunction with 3 port mid-position valve heating system
L
N
N L N L
G GY
1 2 3 L N
HTG
ON
DHW
ON
Pump Boiler Zone valve (HTG)
Megaflo Eco (DHW)
zone valve
(Supplied)
Wiring centre
(Supplied)
Programmer
Megaflo Eco indirect
thermal controls
(Supplied fitted)
1 3 2
Room stat
NOTES:
1. A DOUBLE POLE ISOLATING SWITCH MUST BE INSTALLED IN THE MAINS SUPPLY.
2. ALL EARTH CONNECTIONS MUST BE LINKED BACK TO THE MAINS EARTH SUPPLY.
3. USE COPPER LINKS SUPPLIED TO MAKE CONNECTIONS BETWEEN TERMINALS.
4. DO NOT MOUNT WIRING CENTRE ON CYLINDER.
5. THE ABOVE DIAGRAM IS FOR GUIDANCE ONLY, HEATRAE SADIA ACCEPT NO LIABILITY FOR ANY LOSS OR DAMAGE ARISING FROM ANY ERRORS OR OMISSIONS.
THAT MAY BE INADVERTENTLY CONTAINED WITHIN THIS DIAGRAM. THE VARIOUS EQUIPMENT MANUFACTURERS SHOULD BE CONSULTED TO CONFIRM THE
CORRECT OPERATION OF THEIR PRODUCTS WITHIN THE SYSTEM.
KEY
Bl
BLUE
Br BROWN
G GREY
O ORANGE
GY GREEN/YELLOW
DHW DOMESTIC HOT WATER
HTG HEATING
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Bl Br O
G GY Bl Br O
L
N
N L N L Bl W G O GY
1 2 3 L N
HTG
ON
DHW
ON
Pump Boiler 3-Port mid position valve
Megaflo Eco (DHW) 2-Port
valve (Supplied)
Wiring centre
(Supplied)
Programmer
Megaflo Eco Indirect
thermal controls
(Supplied fitted)
1 3 2
Room sta
NOTES:
1. A DOUBLE POLE ISOLATING SWITCH MUST BE INSTALLED IN THE MAINS SUPPLY.
2. ALL EARTH CONNECTIONS MUST BE LINKED BACK TO THE MAINS EARTH SUPPLY.
3. ASSUMES BASIC BOILER WITH EXTERNAL PUMP.
4. USE COPPER LINKS SUPPLIED TO MAKE CONNECTIONS BETWEEN TERMINALS.
5. DO NOT MOUNT WIRING CENTRE ON CYLINDER.
6. THE ABOVE DIAGRAM IS FOR GUIDANCE ONLY, HEATRAE SADIA ACCEPT NO LIABILITY FOR ANY LOSS OR DAMAGE ARISING FROM ANY ERRORS OR OMISSIONS.
THAT MAY BE INADVERTENTLY CONTAINED WITHIN THIS DIAGRAM. THE VARIOUS EQUIPMENT MANUFACTURERS SHOULD BE CONSULTED TO CONFIRM THE
CORRECT OPERATION OF THEIR PRODUCTS WITHIN THE SYSTEM.
KEY
Bl
BLUE
Br BROWN
G GREY
O ORANGE
GY GREEN/YELLOW
DHW DOMESTIC HOT WATER
HTG HEATING
DHW
OFF
1
2 3 4 5 6 7
8
9
10
11 12 13 14 15 16
Bl Br G O GY