12
Alpha SolarSmart 100 - General Information
Fig. 9
Fig. 8 - Landscape
b. Collector mounted on a pitched roof.
Using the Alpha On Tile Kit portrait or landscape collectors can be mounted on a pitched roof as shown in Fig. 8. The
roof must have an inclination of more than 15°. Full details of this type of installation are provided in the instructions
supplied with the kit.
Full details of this type of installation are provided in the instructions supplied with the kit.
The collector temperature sensor supplied must be fitted into the sensor pocket on the collector (see Figs. 7, 8 and 9) and
the cable fed through the roof with the collector pipes.
The system should be filled and commissioned within one week of installation, to prevent heat build-up in the collector which
may damage the collector.
c. Positioning of a landscape collector onto a flat roof.
Using the Alpha Flat Roof Kit, the collector is mounted on the framework supplied. The collector is fixed at an inclination of
30° and ballast or fixings must be used to secure the frame in the required position. Refer to Fig. 9 for details of location of
the drain back unit in relation to the collector. Full details of this type of installation are provided in the instructions supplied
with the kit.
Full details of this type of installation are provided in the instructions supplied with the kit.
A Preheated solar water to boiler
B Cold water inlet via isolating and pressure reducing valves
C Cool water to DBU
D Warm solar heated water into the cylinder
E Cylinder drain point
Solar cylinder
Max. 4 m
C
D
Drain back unit (DBU)
Roof
Minimum decline of
40 mm per metre required
Ensure that all external pipework
is insulated with high temperature insulation.
The collector must always be able
to fully drain back, therefore the
lowest part of the collector must be
above the pipes of the drain back unit.
Only one collector required,
up to a maximum of two allowed
Max. 6 m
Sensor pocket
A
E
B
Min. 15° angle
Note:
When fitted the collector must
be level, i.e. within 2 mm per metre
Pipe inlet position
Pipe outlet position
Sensor pocket
