Velux CLI U12 SD0W118 El B/U, Установка, эксплуатация и обслуживание

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28 – Part 3: Solar water heater system installation
Tank and collector temperature sensor connection to pump station
controller
1. Route the solar collector sensor, storage tank bottom sensor, and storage tank top sensor wires to the solar pump
station controller and remove the solar system control panel front cover for access to the temperature sensor
terminal blocks.
2. Connect the collector temperature sensor cable ends to the terminals marked T1. Connect the tank bottom sensor
(brown wire) to the terminals marked T2 and connect the tank top sensor (gray) to the terminals marked T3 (polarity
does not matter on these connections). Replace the system control front cover, as shown.
Solar loop and potable water piping insulation and support
1. Insulate all exposed solar loop and potable water connections and piping. The ¾” cold water supply line to the solar
storage tank must be insulated with a minimum
1
⁄
2
” pipe insulation to a minimum distance of 5’ up stream of the
storage tank, or to the wall if closer than 5’. All piping must be supported at a maximum interval of 10’ and the
piping supports must not crimp or compress the insulation.