Heatrae Sadia ELECTROMAX SOLAR Installation & Servicing Instructions Manual page 33

FIGURE 20: WIRING DIAGRAM
SOLAR
CONTROLER
PCB
SOLAR CUTOUT
PUMP - SOLAR
NEUTRAL TERMINAL BLOCK
FUSE - SOLAR CONTROLLER
SWITCH - BOOST
SWITCH - HOT WATER
SWITCH - CENTRAL HEATING
EARTH TERMINAL BLOCK
SOLAR
SENSOR
(ROOF)
M 1
M 2
M 3
M 4
SOLAR
M 5
SENSOR
M 6
(CYLINDER)
M 7
PE PE
PE PE
N
A3
N
A2
N
A1
N
L1
A B
L N
N N N N
1 2 3
1 2 3
1 2 3
TERMINAL BLOCK
N2 N1
A
B
A
B
15 16 18 A1 B1 A2
L N
FUSE - CENTRAL HEATING PUMP
15 16 18 A1
A1 A2 21 24
A1 A2 11 14
L
N
L
N
R
N
NC
FUSE - ROOM STAT
L2 L1 A B
NC COM N/O
BOOST NEON
IMMERSION HEATER - BOOST
IMMERSION HEATER - OFF PEAK
TIMER ONE
PUMP - CENTRAL HEATING
TIMER TWO
B1 A2
RELAY ONE
RELAY TWO
ELECTRIC BOILER
TERMINAL BLOCK
ELECTRIC BOILER
MAIN PCB
ROOM THERMOSTAT
33