Installation manual

6 Installation Instructions
Envirosun TS Installation Manual Rev5b PVNW.docx Page 20
22. Now it is time to fit the cold connection pipe. This procedure will differ between
models, so refer to the appropriate picture.
23. Slide a compression elbow to the bottom left corner of the collector array. For
closed circuit systems this will be an integral fill fitting elbow. Tighten the assembly
taking care not to twist the copper tubes on the collector.
24. Insert one end of the flexible connection pipe to
the elbow. Tighten the assembly onto the flexible
connection pipe taking care not to twist the pipe.
25. Run the flexible connection pipe along the length
of the collector. Using the saddle clamps and
screws provided in the parts kit, screw-fix the
flexible connection pipe to the collector. Start at
the bottom and ensure the flexible connection
pipe is tight before fastening the next saddle
clamp. Evenly space the saddle clamps along
the length of the collector.
26. Now it is time to complete the tank connections.
This procedure will differ between models, so
refer to the appropriate picture.
27. Slide an Rp ¾” compression union onto the hot
outlet of the tank. Tighten the assembly taking
care not to twist the copper tube on the tank.
28. Insert the P&T valve supplied with the Parts Kit
into the valve port in the tank.
29. For closed circuit models, insert the 100 kPa
closed circuit pressure relief valve into the ½”
tank socket (Figure 6.11). Note this valve is not
used on open circuit models.
30. For a closed circuit model, slide an Rp ¾”
compression union onto the cold inlet of the tank
(Figure 6.11). Tighten the assembly taking care
not to twist the copper tube on the tank.
For an open circuit model, the Thermal Arrestor
Valve (TAV) will make up the inlet combination.
Attach an Rp ¾” compression union to both ends
of the TAV and then slide onto the cold inlet of
the tank. Make sure the arrow on the TAV is
pointing towards the tank. Tighten the assembly
taking care not to twist the flexible pipe.
31. To complete the cold pipe connection, slide the
appropriate fitting onto the remaining connection
pipe. For an open circuit model, this will be the
compression union on the TAV (Figure 6.12).
For a closed circuit, this will be a 22mm
compression union onto the closed circuit
connection (Figure 6.11). Tighten the assembly
taking care not to twist the copper tube on the
tank.
32. Gently bend the flexible cold connection pipe and
insert it into the fitting. Tighten the assembly
taking care not to twist the flexible pipe.
Figure 6.9 Cold Pipe - Closed Circuit
Figure 6.10 Cold Pipe - Open Circuit
Figure 6.11 Tank End - Closed Circuit
Figure 6.12 Tank End - Open Circuit