Lon Gateway; System Start-Up - Carrier 50CO series Installations-, Betriebs- Und Wartungsanleitungen

- Temperature or temperature and humidity room sensors:
The room sensors are mounted on a wall in the room to be regulated. The sensors are provided at the back of the unit. For
connections, please see the wiring diagram and the recommendations in the electrical specifications section.
- Changeover control
:
Surface-mounted onto the hydraulic circuit. This option allows the temperature of the water network to be monitored and the
exchanger (coil) to be operated in either cooling or heating mode (summer or winter mode).
Supply air low limit
-
- Fire thermostat

11.2.9 Lon gateway

This is incorporated in the electrics box.
The gateway is used to translate the main information available in MODBUS into LON.
It is possible to connect 1 to 5 units to the LON gateway.
Please see the recommendations for routing cables in the electrical specifications section and in the control manual
(0037.03.2015).

12 - SYSTEM START-UP

After making the necessary electrical and hydraulic connections, turn on the unit and check the following steps:
• Check the tightness of the electrical connections,
• Check the hydraulic connections (direction of inlet/outlet connections),
• Make sure the inside of the unit is clean and free of foreign bodies,
• Make sure the inside of the unit is clean and free of foreign bodies,
• Check the power supply voltage and heat protection calibration in accordance with the current ratings of the various
components.
• Check the height of the siphon,
• Vent the air out of the coils via the bleed screws,
• Check the circuits for any leaks; retighten the valve if necessary,
• To configure the setpoints, please refer to the control manual. "CARRIER CCU Controller"
• Depending on the solution chosen, the air flow may be:
• adjusted based on the difference with the setpoint,
• constant
(refer to the control manuals for the corresponding configurations)
• If a master/slave control system is used, make sure each unit is interconnected by the connection cable
• Simulate activation of the various electric components, controlled components and alarms.
• Check the currents.
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• Check the cleanliness of the humidifier supply water (option),
• After allowing the unit to run for a few hours, check the clogging level of the filter, especially in the case of an F7 filter.
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