Baxi ECOGEN 24/1.0, Installation & Servicing Instructions Manual

Page: 55 / 94

Advise the customer of the necessity of informing the electricity provider with regard to billing and payback. See the Users Operating instructions section 13.3.
NOTE: See also www.baxi.co.uk/products/get­fit­with­baxi­ecogen
page 57
13.0 Servicing
13.1 General
1. For reasons of safety and economy, it is recommended that the appliance is serviced annually. Servicing must be performed by a competent person in accordance with
BS 7967­4:2007.
2. After servicing, complete the relevant Service Interval Record section of the Benchmark Commissioning Checklist at the rear of this publication.
NOTE: Service and maintenance engineers must have undergone Baxi Ecogen Training and been approved to service this appliance.
3. Before electrically isolating the appliance: remove all demands for heat and ensure the engine has disconnected from the grid. (Power = 0 kW) This will protect the engine
from the stresses produced by disconnecting during electricity generation.
IMPORTANT:
During routine servicing, and after any maintenance or change
of part of the combustion circuit, the following must be checked:­
The integrity of the complete flue system and the flue seals.
The integrity of the boiler combustion circuit and relevant seals as described in
Section 14.14.
The operational gas inlet pressure as described in Section 11.5 and the gas rate as described in 11.3.8.
The combustion performance as described in 'Check the Combustion Performance' ( 15.1 ).
4. Competence to carry out Checking Combustion Performance
­ B.S. 6798 'Specification for Installation & Maintenance of Gas Fired Boilers not exceeding 70kW' advises that:­
The person carrying out a combustion measurement should have been assessed as competent in the use of a flue gas analyser and the interpretation of the results.
The flue gas analyser used should be one meeting the requirements of BS7927 or BS­EN50379­3 and be calibrated in accordance with the analyser manufacturers'
requirements.
Competence can be demonstrated by satisfactory completion of the CPA1 ACS assessment, which covers the use of electronic portable combustion gas analysers in
accordance with BS 7967, Parts 1 to 4.
NOTE: It is not possible to undertake any servicing of the engine and its burner and as such it should be regarded as a sealed unit.
When performing combustion checks each burner must be run independently, see
section 15.0 Combustion Checks.
Fig. 50
13.2 Power generation
1. Ensure the system is cold and use the chimney sweep mode to force the Engine burner to maximum rate see section 15.1.
2. Use the THINK Controller to observe the power generated.
3. Monitor the head temperature and the power via the I­think controller ­see
section 13.3 ­safety note.
4. The power should be between 800 to 1000W within 10 minutes of the engine burner starting ­ the head temperature should be between 450­500 deg C.
5. If the power level is low when the head has reached temperature the engine is not producing power correctly ­
see section Q for fault finding on the engine.