HAMWORTHY HEATING LTD
32
WESSEX MODU
MAX
100 SERIES
500001123/C
5. Energise electrical supply and start the boiler module. You will need to go to control stop mode at 100%, then
0%.
6. Monitor the combustion readings indicated on the combustion analyser at both Maximum and Minimum firing
rates.
Target:-
CO
2
= 9% ±0.1% @ High fire & 9% ±0.1% @ Low fire
CO = < 60 ppm*
(Note: Above readings taken with front cover removed and 200mm probe insertion).
*Figure must not exceed 200ppm under normal operating conditions.
If combustion readings fall within the required range the boiler module is set and operating correctly. If the
combustion readings fall outside the required range the burner settings will require adjustment.
CONTACT HAMWORTHY HEATING TECHNICAL DEPARTMENT FOR FURTHER DETAILS
7. Shut down the boiler and isolate from the electrical supply. Remove all instrumentation and replace any test points and
plugs.
8. Refer to
section 8.2 - Controls Operation,
to set the relevant boiler parameters and timings specific to the installation
8.6 User Instructions.
When the boiler is fully commissioned, the owner or their representative should be made aware of the lighting-up
and operating instructions. A practical demonstration should be given describing each functional step. This
Installation and Commissioning guide, the servicing instructions manual and the user’s instructions should then be
handed over and be kept in a safe place for future reference.
High Fire Target
9% CO
2
If combustion level is outside of this range use the
Cross Head Throttle Screw to adjust the mixture.
T
HIS
SETTING
MUST
BE
CORRECT
BEFORE
CONTINUING
To increase the CO
2
level, turn the adjustment
anti-clockwise.
Figure 8.5.5
Low Fire Target
9% CO
2
If combustion readings are outside target range use
Torx Bit to make adjustments
To increase the CO
2
level, turn the adjustment
clockwise.
Figure 8.5.6
