61
Text
Default value
Description
Water press.
N.O.
This refers to the control logic of the low water pressure sensor.
When the appliance is used on sealed pressurised system, set parameter to
N.O.
When the appliance is used on an open vented system, set parameter to N.C.
Mode 1
On.
This setpoint refers to low heat demand installations – please refer to the
WS18 / WP18 technical manual for further details.
Disable
lambda
No
Selecting ‘Yes’ disables the lambda sensor. If disabled, the control system of
the appliance ignores input values from the lambda sensor. The intake fan of
the appliance will operate at fixed setpoints in all operating modes instead of
adjusting the intake fan speed to achieve the target flue gas oxygen setpoint.
Using the Disable Lambda function is likely to result in poor combustion, but
may be useful in the event of a lambda sensor fault.
Disable PL
No.
This allows the low pellet level sensor to be disabled in situations where a
another method is used for monitoring pellet level.
Selecting ‘Yes’ disables the sensor.
Extend Clock
Off
No
This feature delays the initiation of the Shutdown sequence (Figure 18). The
appliance will continue to operate in the modulation sequence for the ‘Extend
Delay’ time before shutting down.
Extend Delay
30
The time in seconds before the shutdown sequence is initaited if ‘Extend Clock
Off’ is activated.
S/L Tracking
No
Stands for “Switch Live Tracking”. The default status is ‘No’ meaning that once
the appliance has started up, it will only shutdown if the flow temperature
setpoint has been achieved, even if the switch live signal is turned off.
Selecting S/L Tracking ‘Yes’ will mean the appliance will shutdown if the switch
live signal is turned off.
Table 9: Description of Engineer Parameters Screen 2
Figure 83: Engineer Parameters Screen 2.
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