Baxi ECOGEN 24/1.0, Installation & Servicing Instructions Manual

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j) Legionella
Legionella is only possible if DHW cylinder sensor is used. The function default activation time is 'Monday at 8:00am'.
To modify the legionella time press 'Menu' button to enter the programming menu.
Scroll to and select 'Domestic Hot Water'.
Scroll to and select 'Legionella function weekday'
Change and confirm new day.
Select 'Legionella funct time'.
Change and confirm new time.
k) Configuring the appliance for the heating system Parameter 5700.
The default setting for parameter 5700 is '1' is for a retro­efficient system with a switched live using a wiring centre ­ see section 10.11 .
For intelligent installations change parameter 5700 to: ­ '2' ­ for one heating circuit and '3' ­ for two heating circuits.
From the main screen press the menu button to show 'information'.
Press and hold the easy menu and menu buttons until 'end user' appears.
Turn the selector button to highlight 'commissioning' and press to select.
Turn the selector button to highlight 'Presetting parameter 5700' and press to select.
Whilst the existing parameter is flashing turn the selector button to the desired number and press to select.
Press the menu button repeatedly to return to the standard screen.
l) 2nd Room Unit Allocation Procedure
When two or more THINK Controller's are used as opposed to one THINK Controller with a 5 LED Receiver.
Install the wall cradles and connect to the appliances using the same connections as shown in Fig. 44 ­ up to two THINK Controllers can be installed in this way.
Power up the appliance:
After the standard screen appears press the menu Button to reveal 'Information'.
Press and hold the Easy Menu and the Menu Button until 'User' appears.
Turn the Selector Button to highlight 'Commissioning' and press to select.
Turn the Selector Button to highlight 'Operator unit' ­ parameter 40 and press to select.
Turn the Selector Button to highlight 'Room unit 2' and press to select.
Parameter 42 and 43 are automatically assigned and not accessible.
Press the Menu Button repeatedly to escape to the standard screen.
Power down the appliance for ten seconds and then power up. If two heating circuits have been programmed correctly the THINK Controller's should show a small 1 and 2 next
to the radiator along with the room unit symbol as in
Fig. 42 .
If it is required to replace the THINK Controller back on the appliance then parameter 40 must be reassigned to operator unit 1 ­ see section 10.13.
After all reprogramming of these parameters the appliance must be down powered and then re powered after 10 seconds.
Parameter settings for the THINK Controller when used as a room sensor with either a 5LED Receiver or THINK Controller on the appliance
On the Appliance 1st Room Unit 2nd Room Unit
5LED
THINK Controller
Parameter
40 42 43 40 42 43
RU1
RU1 All HC
All HC
Central
Central RU2
RU2 Automatically
Assigned
Table 2
Reprogramming of location and central control parameters.
The default settings used for the THINK Controller on the appliance regardless of other equipment are :­
Parameters 40 = Operator Unit 1
42 = All Heating Circuits (All HC)
43 = Central
The parameters 42 and 43 are accessed as parameter 40 as above.
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11.4 Saving the sensor connections
1. For intelligent installations where sensors are used, after all of the connections are made and all the THINK Controller's have been programmed as room sensors, the
sensor connections need to be saved.
2. From the main screen: ­
Press the Menu Button to reveal 'Information'.
Press and hold Easy Menu + Menu for 5 seconds to reveal 'user'.
Turn the Selector Button to highlight 'commissioning' and press to select.
Turn the Selector Button to highlight 'configuration' and press to select.
Turn the Selector Button to highlight 'save sensors' and press to select.
Turn the Selector Button to highlight 'yes' and press to select.
The 'yes' will change back to 'no' to show that the sensors have been saved.
3. The sensors that are connected to the appliance are automatically recognised and used to control the comfort levels.
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11.5 Starting the Appliance and Checking the Gas Rate
1. The gas valve is factory set and in normal running the burner pressure cannot be measured as it is controlled by the fan and modulates as demand on the boiler alters.
2. The gas rate must be checked (as in accordance with Gas Regulation 98 Paragraph 26/9) with any other appliances and pilot lights turned off.
3. The gas rate measurement may be made with the Engine and Supplementary burners both on maximum.