Servicing; Power Generation - Baxi Ecogen 24/1.0 Installation & Servicing Instructions Manual

PINT
Inlet Test
Pressure Point
Fig. 50
58
© Baxi Heating UK Ltd 2012
Throttle
Adjustment Screw
(cover removed)

13.0 Servicing

13.1
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 7967-4:2007.
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
Gas Valve
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 BS-EN50379-3 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.
13.2
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 I-think
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 450-500 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.
General

Power generation