ACV E-Tech 240 Installation, Operating And Servicing Instructions

Also see for E-Tech 160: Installation & servicing instructions

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ACV E-Tech 240 Installation, Operating And Servicing Instructions Manual pdf 12 page image

7.1 USING THE BOILER7.1.1 LEARNING YOUR WAY AROUND THE CONTROL PANEL(FIG. 13)Before carrying out any work on the boiler, switchthe power off at the mains switch fitted in theboiler room by the electrician.1 - ON/OFF switch (item marked 1, Fig. 13)This must be used to switch the boiler off before carrying out any workon it.2 - Power selection switches (item marked 2, Fig. 13)The control panel is fitted with two switches allowing the user to selectthe boiler power according to his needs.When only the first switch is pressed down, the boiler power is limitedto the first stage using +/- half of the power (ideal in summer). In orderfor the boiler to run at full power, both of the switches must be presseddown.To run the boiler at full power at peak rate times, youmust activate the Booster (see point 5 below).3 - Summer/Winter selector switch (item marked 3, Fig. 13)“Winter” position: provides both domestic hot water and central heatingfunctions.“Summer” position: The central heating circulator is switched off. Onlythe domestic hot water function is provided. If there is not enough hotwater available, we recommend setting the thermostat (9) to a highervalue.When the weather turns cold again, simply select “Winter” to reactivatethe heating system..4 - Onpeak (item marked 4, Fig. 13)This indicator shows whether the boiler is on day or night rate.On cheap rate (at night): the boiler runs at full power and stores upwater at the temperature set on the control thermostat. In this casethe light is unlit.On peak rate (during the day): The boiler is controlled by anon-adjustable minimum thermostat (60 °C). If the temperaturedrops below 60°C, the boiler starts up at low power.5 - 1 hour Booster switch (item marked 5, Fig. 13)This button allows the user to push the boiler up to full power for alimited period of one hour by activating the second power level atpeak rate (during the day). To do this both of the power selectionbuttons must be pressed down. At cheap rate times (at night) thisbutton does not do anything.6 - Booster indicator light (item marked 6, Fig. 13)This light shows whether the boiler is in Booster mode or not.7 - Controller (item marked 7, Fig. 13)Please see the enclosed instructions if you have chosen this option.8 - Mano-thermometer (item marked 8, Fig. 13)Reads the boiler primary circuit (central heating) temperature andpressure directly.9 - Thermostat adjustable between 60 and 85° C (item marked 9, Fig.13)Central heating systems are generally designed to operate at amaximum of 80° C. When used at lower temperatures, a 3-way mixervalve installed on the heating flow pipe (see Fig. 2b on page 3) allowsthe temperature to be set manually or, if you decide to install aregulator (§ 2.2.4), automatically.We recommend that you set the thermostat to the maximum values toget the best out of the domestic hot water system.There is a risk of burns from hot water!The water stored in the domestic hot water tank in the boiler can be ata very high temperature.In all cases, install the thermostatic mixer (Fig. 3b on page 4) on thedomestic hot water flow pipe which must not exceed 60° C.A mixer or mixing valve at each point of use is recommended.10 - Safety thermometer (item marked 10, Fig. 13)When the temperature in the boiler exceeds 103°C, the manuallyreset safety thermostat is started up.11 - Boiler shutdown indicator light (item marked 11, Fig. 13)This light is lit when the safety thermostat starts up or when the waterpressure in the boiler is too low.7 USER GUIDEFig. 13: Control panel60854 6 7 981 2 3 5 10 11127.1.2 CENTRAL HEATING SYSTEM GAUGE PRESSUREYour boiler is fitted with a central heating safety valve, set to 3 bar, andwith a pressure gauge.First make sure that the water in the system is still pressurised. Whencold and after the air in the system has been bled, the pressure gaugeshould show a pressure of between 1 and 2, depending on the heightof the building: (1 bar = 5m / 1.5 bar = 10 m and 2 bar = 15 m).To add water, open the filling valve (Fig. 2a and 2b on page 3).Make sure that the drain cock is properly closed after filling andisolate the filling circuit from the central heating circuits. Bleed the airin the system to get an accurate water pressure reading.

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