Nimbus Pocket M NET R32 Installation Manual UK

Commissioning HYDRAULIC

Commissioning HYDRAULIC CONNECTIONS – The water supply distribution network pressure must never exceed 0.5 MPa (5 bar), otherwise a pressure reducer must be installed on the system’s intake. – The system must be filled to less than 0.3 MPa (3 bar), recommended pressure 0.12 MPa (1.2 bar). – The system must be airtight. – The circuit filling pipes and the pipes reaching the heating/cooling and domestic hot water systems (where present) must be correctly connected. – If supplied, the expansion vessel must be pre-charged to 1 bar and must have an adequate capacity for the system. – Where present, check that the safety valve discharge pipe is connected correctly. – If an under-floor system is being installed, a safety device must be fitted on the heating delivery circuit. ELECTRICAL CONNECTIONS – The electrical connections must match the wiring diagrams appearing in the installer manual and must be made correctly. – The mains voltage and frequency must match the date shown on the rating plate. – All cables and parts must be designed according to the power consumption that occurs in the installed unit (see data plate). – The mains power connection must be made using a fixed mount and must include a two-pole switch. – The earthing system must be correct and must be connected first. – The overcurrent protection devices, residual-current circuit breakers and thermal cut-outs leaving the electrical enclosure must be installed correctly and in conformity to all the applicable regulations. – The residual-current devices and safety switches must be installed with the correct size. 6.3 Initial start-up a i To guarantee safety and correct operation of the system interface, it must be commissioned by a qualified and competent technician in possession of the skills as required by law. The minimum water temperature in heating mode, in order for the system to function correctly, is 20°C. In the absence of back-up energy sources, if the water temperature is below 20°C there could be problems during the machine start-up phase. IT IS FORBIDDEN TO ELECTRI- CALLY DISCONNECT THE INTEGRATED HEATING ELEMENTS FROM THE TERMINAL BOARD, AND WE RECOMMEND NOT TO DISABLE THEM (PAR. 1.3.1 and 1.4.1) 6.3.1 Start-up procedure – Insert the system interface on the connection slide pushing it gently downwards. After a brief initialisation, the device will be ready for being configured. – The display screen shows “Select language”. Select the desired language by rotating the selector. – Press the selector . – The display shows the “Date and Time”. Turn the selector to select day, month and year. For each selection, always press the selector to confirm. Once the date has been set, the selection shifts to the time setting. Turn the selector to set the exact time, press the selector to confirm and move to the minute selection and setting. Press the selector to confirm. – Once the date is set, the selection moves to the daylight saving time setting. Turn the selector to select AUTO or MANUAL. If you want the system to automatically update the period when daylight saving time is in use, select AUTO. – Press the selector . NOTE: The display is set by default with a multi-level set-point time schedule. If a message appears concerning the time schedule conflict: – On the home page press the “Menu” button to access the user menu. – Turn the selector to select the “Advanced settings” menu, then press the selector . – Turn the selector to select the “Type of service of the schedule programme”, then press the selector . – Turn the selector and select the same value (Two-Level Set-Point or Multi-Level Set-Point) present in the other User Interfaces (see technical parameter 0.4.3 on the boiler interface, if available) and press the selector . – If there is still a conflict, repeat the procedure and use the selector to choose the two-level set-point, then press the selector . 34 / EN

Commissioning 6.4 Basic functions The system interface is a device that controls the heating system. It can be used as a room thermostat and/or as a system interface for monitoring the installation’s operation and configuring the desired settings. Manual room temperature adjustment The operating mode of the zone associated with the device is set to MANUAL (1). Turn the selector to select the temperature value indicated on the display using the movable cursor near the ring. Press the selector to confirm. The display shows the set temperature. 10° 5 °C 18:30 11/10/2020 21° ,5 ° 19,0 SALOTTO 30 50% 1,5 bar 1 Fig. 51 Room temperature adjustment in programmed mode The operating mode of the zone associated with the device is set to PROGRAMMED (2). During operation in scheduled programming mode, the set room temperature can be changed temporarily. Turn the selector to select the temperature value indicated using the movable cursor near the ring. Press the selector to confirm. The display shows the set temperature. Turn the selector to set the time until which the change must be maintained. Press the selector to confirm. The (3) symbol appears on the display. The system interface will maintain the temperature value until the set time, after which the pre-set room temperature is restored. Room temperature adjustment with AUTO function on If the heating hot water temperature does not match the desired value, it can be increased or decreased via the “Heating Settings”. The correction bar will appear on the display. Press the selector to confirm, or press the back button to return to the previous screen without saving. 6.5 Access to technical area If the screensaver is on, press any button to access the main page. Simultaneously press the “Esc” and “Menu” buttons until “Insert Code” appears on the display. Turn the selector to enter the technical code (234) then press the selector to confirm; the display will show TECHNICAL AREA. – Language, date and time – BUS network setting – Zone mode – Complete Menu – Configuration wizard – Service – Faults Turn the selector and select: – BUS NETWORK SETTING The display will show the list of devices connected within the system: – System interface (local) – Energy Manager – Zone Manager To set the correct zone associated with the system interface, turn the knob and select: – System interface (local) Press the OK button. Turn the knob and set the correct zone. Press the OK button to confirm the setting. 10° 18:30 11/10/2020 21° ,5 ° 19,0 SALOTTO 3 2 5 °C 30 50% Fino alle 20:00 1,5 bar Fig. 52 35 / EN