Installer’s Guide
Installer’s Guide – (Gas Post-Boost) Solar Water Heater
18
H4110 4110 Rev. F
Step 21
• Connect collector sensor cable to
terminal block and secure to the
timber or metal truss inside the roof
cavity.
• Connect extension collector sensor
cable to junction block.
• Do
not
run collector sensor cable
in contact with the copper pipes
as it may melt and cause signal
interference.
• Connect collector sensor cables as
shown in diagram.
• There is no polarity for which
collector sensor cable goes into
which terminal block connection.
• Ensure terminal block is covered,
ideally installed within the roof space
and secured to a truss.
Do not
leave exposed.
• If the terminal block cannot be
located within the roof space, it must
be enclosed within a waterproof
junction box.
Warning: If sensor cable is on
top of a steel roof, the heat
produced from the roof may
cause the sensor wire to melt
and cause signal interference
or failure.
Terminal block secured
to timber or metal truss
inside roof cavity
Collector
Sensor
Cables
S1 & S2
S1
1 2 3 4 5 6 7 8
12 13 14 15 16 17 18 19 20
DeltaSol BS/3
DeltaSol
®
BS
S2
S3
S4
N R2 N R1 N L