60
The parameters menu consists of 5 pages as shown in Figures 82 - 85, which may be selected
and entered using the ‘Up Arrow’ key,
‘Down Arrow’ key and the ‘Enter key. The contents
of the engineer parameters pages are explained below in Tables 8 – 11.
Text
Default value
Description
I.Lock Temp.
55.0°C
This is the minimum flue gas temperature that the appliance will consider cool
enough before allowing the combustion door interlock to be opened.
This value should not be increased above 55°C due to increased risk of
exposure to high temperatures upon opening the combustion door. The value
may be decreased to allow additional cooling if required prior to opening the
combustion door.
Trigger Temp.
Variable
between 58.0°C
and 68.0°C
This is the temperature at which the appliance considers that a heat demand is
present. The appliance will not light i.e. proceed to “system check” unless the
flow temperature is below trigger temperature. Refer to the start-up sequence
shown in Figure 16.
Trigger temperature is selected automatically and varies depending on the flow
temperature setpoint selected in the settings sub-menu. See page 11.
Trigger Temp
Lock
No
Changing this status from “No” to “Yes” locks the current trigger temperature.
Subsequent alterations to the flow temperature setpoint will no longer
automatically change the trigger temperature.
Actuator 0-30
90%
The setpoint position of the anti-condensation valve actuator during the first 30
minutes after the appliance enters standby mode
Actuator 30+
90%
The setpoint position of the anti-condensation valve actuator after the
appliance has been in standby mode for at least 30 minutes
Actuator Min
0%
The minimum permissible value for anti-condensation value actuator position
Actuator Max
90%
The maximum permissible value for anti-condensation value actuator position
Table 8: Description of Engineer Parameters Screen 1
Figure 82: Engineer Parameters Screen 1
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