ANDREWS COMBIfl o
46
GB
5.2.3 HEAT ENGINE TWO (IMMEDIATELY BELOW TOP UNIT) COMMISSIONING
11. Carefully disconnect the fan power connector from heat engine one and replace the fan power connector
from heat engine two (see point 4 illustration) .
12. Ensure that the DHW tank temperature is below 45
O
C. Drawer off water until the tank temperature is
below this value. The temperature can be checked on the home page of the appliance display (see point
3)
13. Press the appliance reset button (on the left hand side) for approximately one second. The heat engine
lockouts from the previous heat engine commissioning should now be cleared.
Reset (hold for 1-3 seconds)
14. Using the display, select the hot water page and turn on DHW
Use the control knob to
turn on DHW
15. Allow three minutes for the heat engine to warm up fully before checking the combustion.
16. Ensuring that the DHW tank temperature remains below 45
O
C during the commissioning process, if
necessary opening taps to bring the temperature down. The CO
2
combustion fi gure should be 9.2% +/-
0.1%. Typical expected valves for CO will be between 130ppm and 180ppm (but may be higher during
initial operation).
If you are experiencing CO readings that exceed 250ppm after 30 minutes of burner operation,
please fi rst check that your gas analyser is functioning correctly and then contact Andrews Water
Heaters on the customer support number given on the rear cover of this manual, for advice
.
17. If adjustment is required, remove dust cover of gas valve throttle adjustment screw and insert a 4mm
allen key or medium fl at blade screw driver to adjust (see point 8).
MAKE ADJUSTMENTS IN 1/4 TURN STAGES AND WAIT ONE MINUTE BETWEEN EACH ADJUSTMENT
18. When adjustments are complete, turn off DHW (see point 14) and wait for appliance to stop before
proceeding
19. NB If you are commissioning a COMBIfl o 100/300 model, proceed directly to point 28 (ignoring points 20
to 27).
Domestic hot water
Operating mode
On
Temporary
.....
Nominal setpoint
70
o
C
Time program
00 12
24
+
CO
2
_
CO
2
Содержание COMBIflo 100/300
Страница 9: ...ANDREWS COMBIflo 7 GB 3 1 GENERAL DIMENSIONS CONNECTIONS 3 0 TECHNICAL DATA ...
Страница 12: ...ANDREWS COMBIflo 10 GB 3 4 APPLICATION EXAMPLES Single Heating Circuit Simple ...
Страница 13: ...ANDREWS COMBIflo 11 GB Single Heating Circuit Immersion DHW Circulation pump ...
Страница 16: ...ANDREWS COMBIflo 14 GB Heating Circuit External 0 10V control ...
Страница 17: ...ANDREWS COMBIflo 15 GB BMS INTERNET CONNECTIONS ...
Страница 18: ...ANDREWS COMBIflo 16 GB 3 5 WIRING DIAGRAMS PCB 1 ...
Страница 19: ...ANDREWS COMBIflo 17 GB PCB 2 3 ...
Страница 69: ...ANDREWS COMBIflo 67 GB 6 4 COMPONENT ILLUSTRATIONS CONTINUED 1 2 3 4 5 29 8 9 11 6 13 12 7 39 40 41 42 35 10 30 ...
Страница 70: ...ANDREWS COMBIflo 68 GB 32 24 24 24 26 25 23 27 6 4 COMPONENTS ILLUSTRATIONS CONTINUED 32 27 15 33 14 10 28 ...
Страница 76: ...M7889 Rev N Mar 2022 March 2022 ...