gledhill TORRENT DIRECT Design, Installation & Servicing Instructions page 37

(d) It is important to ensure that both the primary store and the system are filled and vented
before switching on the boiler and the immersion heater (if fitted). Even if the water is
available at the hot and cold taps, it does not necessarily follow that the store has water in
it. Please check the feed and expansion cistern).
5.4 SOLAR HEATING SYSTEM ( Torrent RE-Solar and Torrent Direct-Solar )
(a) The generic requirements for a solar heating system are described in sections 3.6. The
installation of a solar thermal system should be in accordance with these guidelines and
the system manufacturers instructions.
(b) Typical generic solar system configurations are shown in figures 3.8 – 3.10 and generic
controls and wiring diagrams are shown in figures 4.4 – 4.6 for guidance only. The solar
heating system and the associated controls should be planned and installed following
manufacturers instructions.
(c) It is advisable that an overheat protection device is fitted to limit the store temperature
o
exceeding 85 C from solar gains during stagnant conditions. A method of achieving this is
shown in the appropriate wiring diagram.
(d) It is advisable that a boiler hold-off device is fitted to maximise the utilisation of solar
energy by limiting the unnecessary operation of the boiler. A method of achieving this is
shown in the appropriate wiring diagram.
5.5 OTHER ALTERNATIVE ENERGY SOURCES (e.g. Wood burning stove)
(a) The Torrent RE-Solar models have provision for connecting other alternative energy
sources such as AGA or Wood burning stove in conjunction with a heat leak radiator
system.
(b) Although the thermal store is open vented and hence inherently safe, a heat leak system
must be provided to prevent the possibility of boiling temperatures being reached in the
thermal store.
This is normally achieved by providing a suitable pipe thermostat on the alternative energy
heat source flow pipe which is set at approximately 85 – 90
temperature is reached, the heating pump/zone valve will operate to allow excess heat to
be dissipated via the heat leakage radiator circuit. Alternatively a second thermostat can
be provided in the thermal store to activate the pump but this must be ordered with the
store.
(c) Alternative energy source should be installed and piped so that it conforms to the
manufacturers instructions.
INSTALLATION
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C and wired so that when this
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