Heating - Potterton iHE 100/300 Installation And Servicing Instructions

4. Remove the plug in the fl ue outlet elbow of the
heat engine being commissioned and push the
probe of a combustion analyser approx 65mm
inside fl ue.
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 off the appliance.
• Remove the two screws securing the metal
cover over the electronic control boards. Re-
move covering plate by lifting it upwards and
away.
• Remove the ribbon cable connectors
from each of the AGU2.5 modules (fi g 5.2)
and fi nally unplug the end of the ribbon on the
control board no 1 (fi g 5.3)
• 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
off appliance, move connector from X50 on
control board 2 to X50 on control board no 3
and power up the appliance. (Fig 5.3)
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
9.1% to 9.3%. If adjustment is required, pull off
the black rubber cover from the Throttle Screw
and adjust. Screw clockwise to reduce CO2,
anti-clockwise to increase the CO2. Fig. 5.4
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 off the "controller
stop function"
15. Press the DHW demand button to turn off
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.
iHE
Throttle
Adjustment
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 off appliance. Refi t the ribbon
cable to control board no 1 and all AGU2.5s.
Refi t electrical connectors onto each gas valve.
Ensure all sample point plugs have been
replaced. Refi t metal cover plate and secure
hinged covers.
C P
OMMISSIONING 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 5.5). NB It
may be necessary to remove the small plastic
cover to gain access to this connection.
2. Pull off 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"
24
Fig 5.4
Fig 5.5