6
Installation Instructions
Envirosun AS Installation Manual Rev1a PVNW.docx
Page 19
21.
Assemble and install the Hot Connection Union
assembly (
Detail A
) as follows;
22.
Take the temperature well (
Detail A
– item 10
)
and slide it onto the copper spigot at the top
right of the collector array. Tighten the
assembly taking care not to twist the copper
tubes of the collector. Make sure you use
correctly sized spanners and that the nut is
held steady whilst the compressing plug is
tightened.
23.
Wind five turns of thread tape onto the ½” BSP
thread of the Temperature Well
24.
Insert the Temperature Well into the ½” BSP
socket end of the Hot Connection Union (
Detail
A
– item9
) and tighten normally. Take care not
to over tighten.
25.
Wind five turns of thread tape onto the ⅜” BSP
thread of the Air Bleed Valve.
26.
Screw fit the Air Bleed Valve (
Detail A
– item 8
)
into the top ⅜” BSP socket and tighten
27.
Open the Air Bleed Valve by turning the knob
on top anti-clockwise 1 ½ turns from closed.
28.
Slide the ¾” BSP Compression Union
Assembly (Detail D, item 4) to the bottom left
hand corner connection of the array. Tighten
the assembly taking care not to twist the copper
tubes of the collector. Make sure you use
correctly sized spanners and that the nut is
held steady whilst the compressing union is
tightened.
The collector array is now completed and ready for
connection to the water heater system.
6.2
Flat roof installations
For flat roof installations a special mounting frame is required. Once the frame is
mounted, follow the instructions as outlined above.
6.3
Solar Flow and Return Lines
To complete the solar collector array installation, 2 x ½” (15 mm) copper tubes with a
minimum of 15mm of insulation and 1 x 2 core cable (supplied with the pump module) is
to be run from the solar collector array to the storage tank location.
1.
Connect one ½” insulated copper tube to the bottom left hand corner of the array
and run down to the ground mounted storage tank location. This tube is known
as the Collector Cold Connection.
2.
Connect the second ½” insulated copper tube to the Hot Connection assembly at
the top right hand corner connection of the array and run down to the ground
Figure 6.1.6 Detail E
Figure 6.1.7 Detail F
Figure 6.1.8 Detail G
