HAMWORTHY HEATING LTD
22
UPTON FLOOR STANDING SERIES
500001340/C
8.0 Initial Lighting
Only competent persons registered for working on non
-
domestic gas appliances should attempt the following op-
erations. Before attempting to commission any boiler, ensure that personnel involved are aware of what action is
about to be taken.
Record all readings for future reference on relevant commissioning sheet.
Allow system to warm up sufficiently to check operation of control thermostat.
A combustion check must be taken when first commissioning the boiler. A sampling point is provided in the boiler
-
refer to
section 8.5
-
Combustion Checks
8.1 Operational Checks
NOTE!
Care should be exercised when the boiler is firing, as the heat exchanger components can achieve tempera-
tures which could cause injury if touched.
1.
Ensure that all external controls are in demand and that the gas supply to the module is isolated. Check and
adjust if necessary the low gas inlet pressure switch located on the side of the boiler gas valve (fig. A2–
Gas data)
2.
Switch the on/off switch located on the front panel of the boiler to the on position, and initiate the start up
sequence. Refer to separate Navistem manual, HHL part no. 500001310).
3.
As the gas valve is closed, the low gas pressure switch will prevent the boiler from firing and the error code
‘E132’ will be displayed on the screen. Refer to separate Navistem manual, HHL part no. 500001310.
4.
If the above procedure occurs correctly, open the gas isolating valve and the fault indication will extinguish.
The boiler will commence its ignition sequence as previously described. This time, when the gas valve is
energised the burner will ignite.
5.
With the burner firing, the flame signal displayed, should be approximately 6
-
11µA. Refer to separate
Navistem manual, HHL part no. 500001310.
•
At the end of the ignition proving period, 5 seconds, the spark ignition system will be switched off and the
flame indicator on the control fascia is lit.
•
After a period of 10 seconds the fan will alter speed and the burner modulation will be set according to the
heat load.
•
If after the 5 second flame proving period the flame signal is below the minimum detection current, the boil-
er will shut down and attempt one restart.
NOTE: THE BOILER IS EQUIPPED WITH A RESTART FACILITY AND WILL ATTEMPT A SECOND IGNITION,
DURING WHICH THE ABOVE PROCEDURES WILL BE REPEATED. AT THE END OF THE RESTART PRO-
CEDURE, IF NO FLAME IS DETECTED AFTER THE FLAME PROVING PERIOD, THE BOILER WILL LOCK-
OUT. THE BOILER WILL NOT OPERATE UNTIL THE LOCKOUT HAS BEEN MANUALLY RESET.
8.2Controls Operation
Each Upton boiler is controlled by a Navistem boiler controller.
The controller functions, settings and configurations are accessed via the rotary dial on the individual fascia
panels (fig. 8.2.1)
Comprehensive details and instructions on setting and using the boiler controller can be found in the separate
Navistem
instruction manual, HHL part no. 500001310, which is supplied with each boiler.
A concise user instructions guide (HHL part no. 500001309) is supplied with each boiler. This guide gives
instruction on initial set up as well as a list of possible error codes.
The Navistem controller is located on the main control panel assembly which can be accessed after removal of
the boiler front cover (fig.8.2.2).
Note:
Should remedial work be carried out on a module, then the non
-
firing module must be electrically isolated so as to
prevent accidental operation in the event that the installation is required for ongoing heating requirements.
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