CTC Union EcoZenith i350 H, Installation And Maintenance Manual

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41 CTC EcoZenith i350
Contact paste Sensory elementSensor
Primary low pipe Cable tie Insulation
Sensor cable
6.10.3 Attaching the sensor to the pipe
The sensing part is towards the end of the sensor (see sketch).
• Attach the sensor using the tie strap provided.
• Ensure that the sensor makes good contact with the pipe.
Apply contact paste to the front part of the sensor between the sensor
and the pipe if good contact is otherwise difficult to obtain.
• Important! Insulate the sensor using pipe insulation.
• Connect the cables to the sensor terminal block
6.10.4 Primary flow sensor connection (B1 & B2)
When connecting primary flow sensors 1 (B1) and 2 (B2), fit the primary flow
sensor to the primary flow pipe, ideally after the circulation pump.
• The cooling is adjusted using primary flow sensor 2 (B2), which then
means that heating circuit 2 and cooling cannot be used simultaneously
6.10.5 Return sensor connection for installation
without a heat pump
When connecting the return sensor (B7), fit the product to the return pipe
before connecting to the product.
6.10.6 Checking connected sensors
If any sensor is incorrectly connected, a message will appear on the display,
e.g. “Alarm sensor out”. If several sensors are incorrectly connected, the
different alarms are displayed on different rows.
If no alarm is displayed, the sensors are correct