16
12. Instructions for assembling and fitting the Solar collectors
•
Your solar collectors will arrive with the evacuated glass tubes installed. These evacuated glass tubes must be
handled very carefully – Please note that these glass tubes never come into contact with the solar hot water, so if
they ever got broken during the operational life of the solar hot water system, no solar hot water will ever get lost.
They are easy to replace in-situ and do not require the system to be drained. This is because the Suntrap Solar
Hot water system uses U-Tube solar collector technology which fully contains all the solar water within high
pressure copper pipes which run inside the evacuated glass tubes.
As can be seen from the following pictures, the evacuated glass tubes slide into the
collector manifold and are retained by plastic shrouds at the opposite end.
16 U-tubes make up 1 x Solar Collector
2 x Solar collectors are shown below
Part/n SET232
Copyright © 2009 Suntrap Pty Ltd All rights reserved ABN 87 117 052 856
11. Check list immediately prior to commissioning System
Pre-check list before starting to commission system:
Do not attempt Solar collector installation on a hot day – the Solar collectors and
fittings will be too hot to touch
•
Turn off mains water supply valve
•
Make sure all connections are tightened
•
Make sure all fittings are securely tightened
•
Ensure Air vent valve has been opened at least 1 turn (and leave open)
•
Understand the importance of correctly purging the system – use of the purge valve at
point G (and the Test plug) – if air is left in the system, this valve will not open and
recirculation will not take place: the Solar collectors and pipe work will pressurise, the
pump will be put under strain and damage could result.
WARNING – the water
expelled from point G can be extremely hot and precautions must be taken.
•
Ensure that the temperature sensors are correctly placed and secure – again, if these
are not sensing the correct temperatures, the Solar controller will not operate correctly,
which could result in the PTR valve on the tank operating prematurely, and wasting
water. (incorrect temperature detected and solar tank water gets too warm)
•
Turn on mains water supply valve, Turn on Duo Valve
•
Turn on ball valve at point C (handle in-line with pipe)
•
Check diagram below – connections and components to be installed in the order
shown
•
OK to start commissioning system
Cold water in
DuoValve
500kpa Pressure Limiting Valve
To Tempering valve (point T)
Tank cold water in
(point H)
Mains water supply valve
Use copper Tee
