Dux sunpro 2F136S - Plumbing Connections to Collectors; No Plastic Fittings; Connecting Collectors

Owner’s Manual – Dux Electric Boosted Solar
11
H3161 025248 Rev. D
Insulation
Irrespective of the pipe length, both
the solar ow and return lines must be
insulated with UV stabilized insulation
suitable for solar working temperatures,
e.g. Armaex DuoSolar/Solar insulation.
No Plastic Fittings
Only DR brass and copper pipes and
ttings must be used. Plastic ttings and
PVC pipes are not able to withstand
the high temperatures >200ºC that the
system can create. Failure to use ttings
with a high temperature rating will void
the warranty.
Connections To The Collectors
Connect the sealing ttings to the four
outer connections on the collector array:
1. Fit a sealing washer and plug
assembly to the top left and bottom
right corners of the array.
a. Tighten the assembly taking
care not to twist the copper
tubes of the collector.
b. Ensure you use correctly sized
spanners.
2. Screw t the Air Bleed Valve into
the top
3
⁄
8
" BSP socket and hand
tighten until the nylon ring seals
against the socket face.
Important: Please open the knob
on top of the valve two turns anti
clockwise.
3. Fit the sealing washer and union
base tting to the top right hand
socket of the collector array.
4. Place the Hot Connection Union
assembly onto the union base then
tighten with the air bleed valve
vertical. (NB: The air bleed valve
should be at the highest position on
the collectors).
5. Finally insert a washer and ¾" to
½" conetite union to the lower left
collector socket.
The collector array is now completed
and ready for connection to the water
heater system.
Plumbing Connections to
Collectors