Potterton iHE 100, Installation & Servicing Instructions Manual

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iHE 31 GB/IE
Fig 5.3
Throttle
Adjustment
5. If commissioning heat engine 1, please move
straight onto step 6. If commissioning heat
engine 2 or 3, the following steps will need to
be followed before proceeding to step 6:
• Switch o ff the appliance.
• Remove the two screws securing the metal
cover over the electronic control boards. Remove
covering plate by lifting it upwards and away.
• Remove the ribbon cable connectors from
each of the AGU2.5 modules
( fi g 5.1) and fi nally
unplug the end of the ribbon on the control
board no 1 (
fi g 5.2 )
• Take the free end of the ribbon cable and
plug it into X50 on control board no 2.
• Power up the appliance. Warning. Avoid
contact with any of the control boards as the
appliance is now live.
• If commissioning heat engine no 3. Switch
o
ff appliance, move connector from X50 on
control board 2 to X50 on control board no 3 and
power up the appliance.
(Fig 5.2)
6. Request a DHW demand by pressing the DHW
button on the user controls (top left button).
7. Press and hold the heating demand button
(top right) for more than 3 seconds, to switch
Controller Stop Function on
8. Press the “i” info button to bring up 0-100%
display. Press OK and this display should fl ash.
9. Rotate the knob (if required) to indicate 100%
and press OK. This is the rate that the heat
engine will run at once it has ignited.
10. Once the heat engine has ignited a “ fl ame”
symbol should be visible on the user display and
the
fl ame should be visible through the heat
engine sight window.
11. Allow fi ve minutes for the heat engine to warm
up before checking the combustion.
12. The CO2 fi gure should be within the range 9.0%
to 9.3%. If adjustment is required, pull o ff the
black rubber cover from the Throttle Screw and
adjust. Screw clockwise to reduce CO2, anti-
clockwise to increase the CO2. (
Fig. 5.3)
13. When the correct combustion readings are
achieved, replace the cover plug over the
Throttle Screw.
14. Press and hold the heating demand button for
more than 3 seconds to turn o ff the “controller
stop function”
15. Press the DHW demand button to turn o ff the
appliance and when the burner has stopped
fi ring remove the Gas Valve electrical connector
of the heat engine and then replace the
connector on the next to be tested.
16. Remove the gas analyser probe from the fl ue
elbow and replace the sample point plug.
17. Press the RESET button on the front of the
control panel.
18. Repeat the procedures 4 - 15 until all heat
engines have been tested.
19. Finally: Switch o ff appliance. Re fi t the ribbon
cable to control board no 1 and all AGU2.5s.
Re
fi t electrical connectors onto each gas
valve. Ensure all sample point plugs have been
replaced. Re
fi t metal cover plate and secure
hinged covers.
C
OMMISSIONING
P
ROCEDURE
-(OCI700 S
OFTWARE
)
1. Remove the front panel screws; open the
hinged front cover and the inner control panel.
Connect the OCI700 using the LPB lead to the
OCI345 located on the bottom right hand side
of the electrical control panel (
fi g 5.4 ). NB It
may be necessary to remove the small plastic
cover to gain access to this connection.
2. Pull o ff the electrical connector to all the gas
valves except the one to the heat engine that
is to be checked. NB this will put the other heat
engines into lockout, but this can be ignored
during commissioning.
3. Power up the appliance.
4. Start the ACS service software and if necessary
create a new plant name for this appliance.
5. Using the ACS service software Open “Popcard”
within “Applications”
6. Remove the fl ue sample point plug in the
fl ue outlet elbow and push the probe of a
combustion analyser fully in.
7. Request a DHW demand by pressing the
DHW
button on the appliance controls (top left
button).
Fig 5.4
OCI700 Connection point