Completion - Baxi Ecogen 24/1.0 Installation & Servicing Instructions Manual

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Approximate rate is:­ ±5% 2.68 m /hr at 20mb inlet pressure for G20 (Natural Gas) 1.04 m
NOTE: For retro­fit systems using a wiring centre ­ ensure that all external controls are calling for heat.
IMPORTANT: The combustion for this appliance has been checked, adjusted and preset at the factory for operation on the gas type specified on the appliance data plate.
No measurement of the combustion is necessary. Do not adjust the air/gas ratio valve.
4. Having checked:
That the boiler has been installed in accordance with these instructions.
The integrity of the flue system and the flue seals.
The integrity of the boiler combustion circuit and the relevant seals.
Proceed to put the boiler into operation as follows:
5. Activate the chimney sweep function by pressing and holding the easy menu and menu buttons (Fig. 49a) whilst in the normal operation screen until chimney sweep
function option appears. Press the Selector Button to switch the chimney sweep function on.
6. The THINK Controller will show Chimney Sweep Function on. Chimney Sweep function Burner Output Adjust appears.
Press the Selector Button. 'Engine burner min' will flash.
Use the wheel to scroll through the six options
a) Engine burner minimum
b) Engine burner maximum
c) Supplementary burner minimum
d) Supplementary burner maximum
e) Engine and Supplementary burners minimum
f) Engine and Supplementary burners maximum
7. Choose the maximum operation f) and ok your choice. No matter what the previous state is, the burners will restart before achieving the desired rate.
As soon as both burners are lit as shown by the flame numbers
8. With the boiler operating in the maximum rate condition check that the operational (working) gas pressure at the inlet gas pressure test point (Fig. 50) is in accordance with
B.S. 6798 & B.S. 6891.
9. Ensure that this inlet pressure can be obtained with all other gas appliances in the property working.
Fig. 49a
STEP 1 STEP 2
STEP 3 STEP 4
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10. Carry out the rate measurement. The burners will remain at maximum rate unless: ­
a) A fault condition occurs ­ the burner/s will switch off ­ depending on the fault.
b) The boiler set flow condition is reached (see note) ­ the burners will switch off.
c) The power generated reaches 1kW ­ the engine burner will modulate down.
For this reason the measurement needs to be carried out on a cold system to be sure of obtaining an accurate result.
NOTE: The boiler set flow temperature is set to 90° to avoid interruption of the rate measurement.
11. The chimney sweep function can be deactivated in the same manner as it is activated. It will deactivate automatically after 20 minutes, or in the event of an fault.
12. Remember: The engine burner will not restart until the Head Temperature is below 165°C.
12.0 Completion
12.1 Completion
1. Instruct the user in the operation of the boiler and system including the THINK Controller, explaining the operational sequence.
2. Set the central heating and hot water temperature comfort levels to the requirements of the user.
3. Carefully read and complete all sections of the Benchmark Commissioning Checklist at the rear of this publication that are relevant to the appliance and installation. These
details may be required in the event of any warranty work. The publication must be handed to the user for safe keeping and each subsequent regular service visit recorded.
4. Complete the 'Notice of Installation' booklet and submit on the day of commissioning to the Distribution Network Operator.
5. For IE, it is necessary to complete a "Declaration of Conformity" to indicate compliance with I.S. 813. An example of this is given in I.S. 813 "Domestic Gas
Installations". This is in addition to the Benchmark Commissioning Checklist.
6. Hand over the Users Operating, Installation and Servicing Instructions giving advice on the necessity of regular servicing.
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/hr at 37mb inlet pressure for G31 (Propane Gas), see Section 4.1.
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