Tank Temperature Sensor Installation Page; Tank And Collector Temperature Sensor Connection To - Velux CLI U12 SD0(W/L/F/P) 118 El B/U Instruction Manual

Tank temperature sensor installation
1. Remove the tank temperature sensor cover and insulation from the
temperature sensor well located in the lower section of the solar storage
tank. Remove the locking nut from the tank temperature sensor stud and
clean any insulation material from the tank surface.
2. Secure the temperature sensor to the tank using the lock nut provided.
Make sure that the temperature sensor is oriented in the vertical direction
to maximize surface contact with the tank. This will also help the sensor
react to temperature change.
3. Place the insulation into the sensor well completely fi lling the well with
insulation. Re-install the temperature sensor cover.
Tank and collector temperature sensor
connection to pump station controller
1. Remove the solar system control panel front cover for access to the
temperature sensor terminal blocks. Connect the collector temperature
sensor cable ends to the terminals marked S1 (polarity does not matter on
these connections).
2. Route the tank temperature sensor cable to the solar system control
panel and connect to terminals S2 (polarity does not matter on these
connections).
3. Re-install the solar system controller front cover.
Expansion tank installation
1. Locate the expansion tank wall bracket to the right of the pump station controller and secure to wall. The wall
bracket screws should screw directly into a wall stud, or
2. Attach one end of expansion tank fl ex connector securely to pump station using pipe tape and the gasket provided.
Tighten the fl exible pipe nut securely.
3. Adjust fl ex connector as needed and attach the other end of expansion tank fl ex connector securely to expansion
tank bracket using pipe tape and the gasket provided. Tighten the fl exible pipe nut securely.
4. Attach the expansion tank to the expansion tank bracket using pipe tape. Tighten securely.
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Tank temperature sensor installation – Part 3: Solar water heater system installation – 23
⁄ " plywood backer board.
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