Commissioning The Heat Engines - Potterton iHE 100 Installation & Servicing Instructions Manual

14. Take the free end of the ribbon cable and plug it
into X50 on PCB2.
15. Power up the appliance. Avoid contact with
any of the control boards as the appliance is
now live.
16. To operate QX2 on heat engine three. Switch off
appliance, move connector from X50 on PCB2 to
X50 on PCB3 and power up the appliance. (Fig
5.2)
17. After completion of pump operations, replace rib-
bon connector onto X50 of PCB1 and all connec-
tions on to AGU2.5 modules.
R
UNNING THE CIRCULATION PUMPS
1. Remove the front panel screws; open the hinged
front cover to access the electrical control panel.
2. Connect the OCI700 using the LPB lead to the
OCI345. Located on the bottom right hand side
of the electrical control panel. NB It may be
necessary to remove the small plastic cover to
gain access to this connection. (Fig 5.4)
3. Start the ACS service software and if necessary
create a new plant name for this appliance.
4. Open "Popcard" within "Applications"
5. Select device 1 and open
6. Select "IO" Test
7. Left click on "Relay test" line 7700 and change
actual value to:
• "QX1" – To run the secondary pump on the
tank side
• "QX2" – To run heat exchanger fl ow pump
(change device to select other heat engines)
• "QX3" – To run the primary pump on the LLH
side
8. Change back to "No test" once complete
iHE
Fig 5.1
Fig 5.2
(OCI700 )
SOFTWARE
30
S
ETTING THE DOMESTIC HOT WATER
The DHW set point can be altered by performing
the following actions from the default screen:
1. Press the "OK" button
2. Using the scroll wheel select "Domestic Hot
Water", press "OK".
3. Press "OK", the temperature should now be
fl ashing. Use the scroll wheel to set desired
temperature, press "OK"
4. Press "ESC" twice to return to default display
(See seperate User Guide for more detail
on setting both heating and hot water
temperatures and times)
3.3 COMMISSIONING THE HEAT
ENGINES
The gas mixture and burner gas rate is
pre-set at the factory. Please do not
attempt to change the settings of the
governor behind the sealed cover.
It is an important part of commissioning to
check the gas rate of the appliance and that the
combustion emission levels are correct.
As this appliance contains several heat engines,
the manufacturer recommends that commissioning
is carried out using Siemens OCI700 service tool,
available from the manufacture. If this service tool
is not available to the commissioning agent, then
the following manual procedure can be used:
C P
OMMISSIONING ROCEDURE
Please follow the following procedure if you are not
using Siemens OCI700 service tool:
1. Remove the front panel screws; open the
hinged front left cover and the inner control
panel.
2. Hinge back inner control panel and 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. 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.
( )
TANK TEMPERATURE
- M M
ANUAL ETHOD
GB/IE