Rheem 180 - Page 47

SYSTEM ASSEMBLY
47
ASSEMBLY PROCEDURE
Refer to the assembly diagrams on pages 37 to 39 for the location and position of components.
DO NOT MODIFY THESE PARTS IN ANY WAY.
Refer to the installation instructions supplied with the 52H system OTP kit for additional information of the
installation of the over temperature protection components.
1. Roof Condition: Check the condition of the roof and advise the client of any broken tiles or damaged roof
sheeting before commencing the installation.
2. Solar Frame: If a solar frame is to be installed, determine the location of the frame. Refer to “Solar Water
Heater Storage Tank Location” on page 27 and “Solar Collector Location” on page 40 and the installation
instructions provided with the frame.
Assemble and fix the frame to the roof, following the installation instructions provided with the frame.
Depending upon the positioning of the frame on the roof and any minor fall the roof may have, ensure the
collector rail is either horizontal or is higher on the hot outlet side of the solar collectors. If in doubt use a
spirit level.
Proceed to Step 7.
3. Water Heater Location: If a solar frame is not installed, select a suitable position for the solar water
heater.
Refer to “Solar Water Heater Storage Tank Location” on page 27 and “Solar Collector Location” on
page 40.
4. Position of Tank: Select the position of the solar storage tank so the front of the foot is above a roof
batten toward the nose of an even row of tiles or even metal roof sheet. The rear of the foot may be seated
over the nose of the tiles on the next row behind. Where possible, the tank should be positioned at least
three tiles from the ridge capping to prevent disturbance of the ridge.
5. Collector Mounting Rail Preparation
Note: The collector straps are to be fitted to the collector rail before fixing the straps to the rafters.
5.1 If more than two collectors are installed, locate the additional collector rail(s) adjacent to the first
collector rail and join together using drive cleat supplied in the parts kit.
5.2 Determine which slots in the collector rail will be used for the collector straps after locating the rafters
and taking note of the rafter spacing.
Rafter spacing
Recommended slots
One collector
(1 x one collector rail)
Two collectors
(1 x two collector rail)
300 mm (12”)
1, 4 or 2, 3
1, 6 or 2, 5
400 mm (16”)
1, 4
1, 5 or 2, 6
450 mm (18”)
1, 4
2, 5
500 mm (20”)
1, 4
1, 6 or 2, 5
600 mm (24”)
2, 3
1, 5 or 2, 6
900 mm (36”)
1, 4
2, 5
collector rail – one collector
collector rail – two collectors