Technical data

STRATA2

8.2 maintenance

Any maintenance must be carried out as a result of faults noted in the inspection. Remarks and

comments made by clients must be considered and the causes of any faults or problems must be found.

Note: The pressure of the installation must be not less than 0.5 bar, any leakage within the system will

affect the pressure and so must be identified.

If the module pump makes an un-natural noise, and in particular if the pump is more than 5 years old,

the pump should be replaced by way of preventative action.

If the interior of the heat exchanger is contaminated and/or there is a deposit on the stainless steel

pipes, the latter must be removed with a hand brush or citric acid (do not use a steel brush). Remove any

dirt created with a vacuum cleaner.

Note: Never clean the burner itself.

The Condense syphon must be rinsed. This can be done by removing the burner and using a filling hose,

insert water into the heat exchanger, which will automatically reach the syphon.

If dirt has deposited on the combustion fan blades, each blade must be carefully cleaned, until the blade

material is visible again. If this is not done evenly, the combustion fan will rotate out of balance.

9.1 control panel

The control panel is divided into two sections, the left hand section serves the lower heat exchanger

and the right hand section serves the upper heat exchanger.

The two digital displays provide the following information regarding the functioning of the Strata 2-120:

Normal operating situations, the display always shows the flow temperature of the boiler water.

Operating messages, which are always indicated by one digit.

Fault messages, which are always indicated by flashing two digits.

System faults in the FMT 310 module control unit.

9.1.1 operation indicator

An operating message means that the burner of the heat exchanger concerned is not operational, the

reason being reported in the operating message. If this situation has resolved itself after some time, the unit

will automatically restart.

0. Unit prevented from operating. Styphon monitoring active.

If the water level in the syphon has dropped, the unit will automatically restart.

1. Unit prevented from operating. Water temperature too high, measured by the

boiler thermostat.

If the water temperature drops by more than 20ºC within 30 seconds, the unit will start to operate,

if this is not the case, the unit will lock out.

1. Unit prevented from operating. Condensate syphon overfill.

If the condensate produced by the unit is not allowed to pass from the unit to a suitable drain

point the level switch located in the base of the flue gas tube will activate and prevent the unit

from operating.

9.0 fault

diagnosis