Baxi ECOGEN 24/1.0, Installation & Servicing Instructions Manual

Page: 52 / 94

A number of actions are required to complete the commissioning procedure.
Time and Date settings.
Operating mode
Temperature settings.
DHW set point for thermostat control.
Time Program settings.
Chimney sweep (checking the gas rates)
A number of commissioning actions may be required ( Paragraphs g to l ):
Deaeration Function
Central Heating ­ Optimised start.
System frost protection (outdoor sensor required).
Legionella settings (DHW sensor only).
Configuring the appliance for the heating system ­ Parameter 5700.
2nd Heating Circuit room unit allocation.
a) Date and Time Settings
When the THINK Controller is powered up initially, 'Date and Time' setting function is activated. See Section 4.0 Setting the Time in the User's Operating Instruction Booklet.
b) Operating Mode
To avoid unnecessary/unwanted start ups during installation and commissioning, the appliance is delivered in the standby mode which is confirmed by the ( ) symbol shown in
section 10.12 Fig. 42 . The standby mode will only allow the appliance to run if either: ­
Hot water boost has been selected.
Chimney sweep function has been activated.
Frost protection is activated for either the appliance or room.
De­aeration allows exercising of the pump and valves for priming of the circuit and the removal of the air in the system.
To take the appliance out of standby and enable 'normal' operation: ­
From the standard screen on the THINK Controller press the easy menu button.
Scroll the Button and press to select Standby/operation.
'Standby/operation ­ Operation' appears briefly on the THINK Controller and the action is confirmed by the disappearance of the standby symbol.
The central heating and domestic hot water active times are shown at the top of the THINK Controller as shown in fig. 42 . (See paragraph e).
To set up the appliance to the modes of operation required for the householder
­ see Section 7.0 of the User's Operating Instructions.
Section 7.1 Selecting the Space Heating Mode.
Section 7.4 Selecting the DHW Mode.
c) Temperature Settings.
Please refer to the User's Operating Instructions Section 7.0.
page 52
d) DHW set point for thermostat control.
Remember: Make sure the user DHW setpoint on the THINK Controller is equal to or greater than the set point on the thermostat at the cylinder.
If this procedure is not performed the recovery time of the DHW maybe be increased unacceptably.
e) Time Program Setting
Please refer to the User's Operating Instructions Section 5 (CH) and Section 6 (DHW).
f) Chimney Sweep ­ Checking the gas rates ­ see Section 11.5.
g) Deaeration function
If during commissioning repeated E164 and E274 errors occur which will stop the appliance from running, (see section 17 fault finding ) it may be useful to run the De­aeration
function. This will run the pump and exercise the system valves to help purge the air from the system.
To activate this function from the standard screen: ­
Press and hold both the easy menu and menu buttons until chimney sweep function appears.
Deaeration function will appear shortly afterwards.
Scroll down and press to select.
'312: Deaeration function' will appear and last for 4
1
/
2
mins.
This action can be used repeatedly until the 164 and 274 errors are removed. However if the problem persists check to see if shut off valves, pump valves, wiring etc are correct.
h) Central Heating ­ Optimum start activation The engine and supplementary burners are fired so that the property is up to the set room temperature at the programme On time.
To activate the function press the 'Menu' button to enter the programming menu.
Press and hold 'Easy Menu' and 'Menu' button together until the access level menu appears (>8sec).
Select 'Commissioning'.
Select 'Temps/mode CH1'.
Press Selector Button to confirm.
Select 'Optimum start control max' (P 790).
Press Selector Button.
Change the values to the desired time.
Press Selector Button to confirm.
Press 'Menu' button to escape to the normal operating screen.
i) System Frost protection An outdoor sensor must be fitted to activate system frost protection.
To activate the function press the 'Menu' button to enter the programming menu ­ 'Information' appears.
Press and hold 'Easy Menu' and 'Menu' button together until the access level menu appears (>8sec).
Select 'Commissioning'.
Select 'Configuration'.
Select 'System frost protection' (P 6120).
Press Selector Button.
Select 'On'.
Press Selector Button to confirm.
Press 'Menu' to escape to normal operating screen.
Remember: The function is most likely to activate the pump during the night.
Pump activation at less than 1.5° C.