andrews MAXXflo EVOCWH 120/302 Installation And Maintenance Manual page 45

5.2.4 HEAT ENGINE COMMISSIONING COMPLETION
• Refi t fan PWM connector onto the top heat exchanger, then press the RESET toggle switch for 1 second
to clear the control lockout.
• Once the lockout has been cleared from the display (bell symbol is not being displayed) close the door of
the heater and secure it with the two door clips.
• Turn the operation switch to ON or "I" and wait for both heat engines to ignite and operate at maximum
output.
• Keep the DHW tank temperature below 40
consumption fi gure using the following table:
• The gas consumption must be within 5% of the gross kW input value of the data plate
• Turn off all taps and water draw off s.
• Change the DHW Set-point to back to 60
• Heat engine commissioning is complete
Commissioning
O C (by opening water outlets). Check the total gas
Model gross kW
input
MAXXfl o EVO 90 93.2
MAXXfl o EVO 120 124.3
O C to 65
G20 GAS (38.8 MJ/m³)
Metric meter
Time taken to consume
0.1m of gas
3
40s (+/- 2.0s)
30s (+/- 1.5s)
O C as required by the user
45 MAXXfl o EVO