Évaluations - 3, GPA: 4
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Facilité d'utilisation
The program takes 17 minutes and stops automatically. After this the unit will function normally. (See also 'Filling and de-aerate the boiler and installation, chapter 9). On a call for heating or hot water the control system will select the required water control temperature. This water temperature is called the T-set value. On a call for central heating the boiler ignites first at low input. The input is then changed slowly to match the load required. The boiler operates in this way to avoid excessive water noises and temperature overshoot. On a call for domestic hot water supply the T-set value of central heating return water temperature is monitored. Depending on the amount of domestic water which is withdrawn from the DHW fascility, the central heating return water temperature, from which the input is adjusted, will vary. Operation indication (in the first display position by technical read out) 0 1 2 3 4 5 6 7 8 9 A No heat demand Fan pre/post purge Ignition phase Burner active on central heating Burner active on DHW Fan check Burner off when room thermostat is demanding Pump overrun phase for central heating Pump overrun phase for hot water Burner off because of to high flow temperature Automatic de-aeration program 8.1 Explanation of the function buttons i NOTICE ! CAUTION i NOTICE When the pump is switched on continuously it can lead to undesired heating up of the central heating system during the summer. 1 3 4 5 6 2 7 8 Boiler control panel figure 16 Only qualified personel who are trained for servicing these boilers are permitted to make alterations in the controller to calibrate the boiler to the installation. 1. Display. See previous page for further information. 2. ON-OFF Switch (Placed separately next to the boiler) This switch turns the power supply to the boiler on or off. Only turn the boiler off using this switch, when the burner is off.. 3. Central Heating program button. Switching the Central Heating on or off (LED on/off); 4. Hot Water program button. Switching the Domestig Hot Water (DHW) facility on or off (LED on/off); 5. Pump program button. adjusts the pump to continuous water circulation in the central heating system (LED on), or according to the pump overrun times on the relevant programs (LED off); 6 Mode-button. After briefly pressing, a selection of the data chapters can be retrieved. After pressing for 5 seconds it is possible to enter the code as described in chapter 11.3; 7 Step-button. After briefly pressing, the water pressure can be retrieved and pages per chapter can be retrieved. After pressing for 5 seconds it switches from the Good-state to technical read out and vice versa; 8 Reset-button. After briefly pressing, for: - unlocking errors; - ending the access code; After pressing for 5 seconds an operating stop is made, for example, for activating the automatic venting program. Some buttons have other functions.These functions are only active when according to the procedure described in chapter 10, adjustment has to be changed or data must be retreived from the CMS. The other functions are: 3. Central Heating program button : + function; 4. Hot Water program button: -function; 5. Pump program button : store-function, which means that by means of this button a modified setting is confirmed; 7. Step-button: scrolling in a data chapter. Installation 9 Starting up: Filling and de-aerating the boiler and installation 9 Starting up: Filling and de-aerating the boiler and installation ! i i! CAUTION CAUTION Observe the following rules of safety: -All work on the unit must take place in a dry environment. -Rinnai units may never be in operation without their housing, except in connection with maintenance or adjustments (see Chapter 12 and 13). -Never allow electrical or electronic components to come into contact with water. NOTICE NOTICE Carry out the following tasks in connection with maintenance, etc. to an already- installed unit: -Shut down all programs -Close the gas shut off valve -Shut off the power at the main power switch -Close the service valves (system supply and return) NOTICE Take note of the following when maintenance or adjustments are needed: NOTICE -The unit must be able to function during these activities; for this reason, the unit’s supply voltage, gas pressure and water pressure must be maintained. Ensure that this is not a source of potential danger during these activities. WARNING Following maintenance or other activities; always check the installation of all parts through which gas flows (with bubble test using leak-search spray). 9.1 Requirements of the water system Before filling the heating system, the complete system, including all zones, must be thoroughly cleaned and flushed to remove sediment. Flush until clean water runs free of sediment. Rinnai suggests using an approved system cleaner to flush the system, but not the boiler. See the Rinnai Boiler Applications Manual for furtherinformation and for a list of approved cleaners. Approved antifre...
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