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33-1197 Solahart Owner‟s Manual – Thermosiphon Systems - Revision H – Nov 2013

24

INSTALLATION INSTRUCTIONS – OPEN CIRCUIT SERIES

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WARNING: THE TANKS AND COLLECTORS ARE HEAVY. IMPROPER LIFTING TECHNIQUES COULD
RESULT IN PERSONAL INJURY DURING INSTALLATION. IT IS THE INSTALLER’S RESPONSIBILITY TO
USE ONLY APPROVED LIFTING AND SAFETY DEVICES AND TECHNIQUES WHEN LIFTING COLLECTORS
AND TANKS ON ROOFS.

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WARNING: DO NOT REMOVE THE SOLAR COLLECTOR PACKAGING COMPLETELY PRIOR TO THE
INSTALLATION AS THE SOLAR COLLECTOR SURFACE CAN BECOME VERY HOT. THIS WILL ASSIST IN
PREVENTING POTENTIAL PERSONAL INJURY DURING THE COMMISSIONING PROCESS. REMOVE ONLY
SUFFICIENT PACKAGING MATERIAL TO ENABLE THE INSTALLATION OF THE SOLAR COLLECTORS.

Select the location of the storage tank. The front mounting foot of the tank should be positioned directly over a tile batten.
Remove several tiles to expose the rafters and this batten. Measure 2050 mm down (1170 mm for 301L & 221L) from the
centre of the batten to determine the location of the collector rail. (refer to drawings, Page 51) Mark this location. Remove
several roofing tiles from this location to expose the rafters. If more than two solar collectors are installed, locate the
additional collector rail from the parts kit adjacent to the first collector rail and join together using the drive cleat supplied
in the parts kit.
Note: The collector / tank straps are to be fitted to the collector rail(s) before fixing the straps to the rafters.
Determine which slots in the collector rail(s) will be used for the collector straps. Hook two collector straps to the first
bottom collector rail and one collector strap to each additional single collector rail (short) (if used). Refer to “Hooking
Collector / Tank Strap to Collector Rail” on page 51 and Detail A on page 51.
Line up the straps with the rafters. After positioning the rail level, raise the right hand side 12 mm for each collector fitted
(i.e. 12 mm for a single collector system, 24 mm for a two collector system, 36 mm for a three collector system etc) and fix
the straps to the rafters. Replace the tiles (refer to drawings, Page 51).
Move back up to where the storage tank is to be positioned. If used, fit the tank flashing sheet under the top of the solar
collectors and extend up the roof to the top of the solar storage tank location. Place the flashing over this row of tiles and
tuck the top of the flashing under the row above. Now using a lifting device lift collectors onto the roof. Place the collectors
carefully into collector rail. Remove the red transit plugs from the collector with a screwdriver. Silicon O-rings are supplied
in the Parts Box and must be fitted at each pipe connection.
Join the collectors using the collector unions provided (Part No. 33-0695 – screwed fitting, 34-1390 – conetite fitting).
Apply only medium pressure with a spanner to tighten. Centralise the collectors on the rail. Lock the collectors to the rail
with the collector clamps (2 per collector). Tighten using the nuts and bolts provided. Fit either the copper blanking discs
(Part No. 33-0606) and collector nuts (Part No. 33-0600) for collectors with screwed fittings or the collector bung assembly
(Part No. 34-1391) for collectors with conetite fittings into the top left hand corner of the left hand collector and into the
bottom right hand corner of the right hand collector.
Now use a lifting device to lift the tank onto the roof. Place the tank onto the aluminium flashing (if used), central to the
collectors. Fit the collector hot pipe into the top right hand corner of the right hand collector. Fit the collector cold pipe into
the lower left hand corner of the left hand collector. After lining up the connecting pipes with the tank, fit the hot pipe (refer
to “Open Circuit Direct Systems – End Cap” on page 25). Fit the cold pipe to the tank cold inlet socket. Refer to “Open
Circuit Direct Systems – Thermosiphon Restrictor Valve (TRV)” on page 26 if a Thermosiphon Restrictor Valve (TRV) is
to be installed in the cold pipe.
Secure the tank to the roof rafters in a similar manner to that for the collectors, using the tank straps (Part No. 20-4600) and
the aluminium clamps (Part No. 33-0872). Loosely attach the tank clamps to the rear foot of the tank base, and clip in and
bolt the tank straps. Refer to “Hooking Collector / Tank Strap to Tank Clamp” and drawings on page 52. Ensure the bolt
heads fit into the valley of the tile. Ensure straps are tight. Replace roof tiles.
Fit the temperature pressure relief valve (Part No. 45-1104) into the tank as per the connection diagram on page 50.
Fit the pipe shroud cover if supplied. Refer to “Thermosiphon Pipe Shroud Cover” on page 16.

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WARNING: UNCOATED DR BRASS CONETITE FITTINGS MUST ONLY BE USED IF LCS
COLLECTORS ARE BEING INSTALLED WITH AN OPEN CIRCUIT SYSTEM.