GC-1F Installation Instructions and Reference Handbook
DEIF A/S Page 67 of 123
Cool-down controlled by engine temperature
The engine temperature-controlled cool-down is to ensure that the engine is cooled down below
the set point in parameter 6213 “Cool-down temperature” before the engine is stopped. This is
particularly beneficial if the engine has been running for a short period of time, and therefore has
not achieved normal cooling water temperature, as the cool-down period will be very short or
none at all and hereby save fuel. If the engine has been running for a long period it will have
reached normal running temperature, the cool-down period will be the exact time it takes to
lower the temperature to be less than the temperature in set point 6213.
If, for some reason, the engine cannot lower the temperature below the temperature set point in
6213 within the time limit in parameter 6560, the engine will be shut down due to this timer. The
reason for this could be high ambient temperature.
The temperature-controlled cool-down function is selected in parameter 6214.
Test function
The GC-1F has two test sequences with or without option B3. The test sequences can be
initiated in two ways: Either with the test push-button on the front of the GC-1F or by a digital
input configured to this function.
Island test function
When the Island test is initiated, the GC-1F will go through the start sequence and run the
engine for the time set in parameter 7090. In this parameter, it is also selected if this sequence
should be started by a digital input and/or the test push-button on the front of the GC-1F. If the
timer is set to 0, the test sequence will be interrupted when the digital input or test push-button is
deactivated. This means that digital input can be used to activate and deactivate the test
sequence. When the timer runs out or the input is deactivated (timer set to 0), the stop
sequence including cooling down will be carried out.
The GC-1F must be in auto mode in order to initiate the test sequence.
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