GB.GOLDSKE.160901
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We reserve the right to alter specifications without notice.
6.4.12.3 Cool
The valve actuator of the air cooler for water is equipped with
a quick-fit connector for connection to the AHU's control unit
which automatically activates the cooling function.
1-step
Used if cooling in one step is connected. The cooling controller
of the AHU regulates the cooling output according to the cooling
load, 0-100 %. The cooling relay is energised when the cooling
load exceeds 5 % and is de-energised when the cooling load is
below 2 %.
2-step
Used when cooling in 2 steps is connected. The cooling control-
ler of the AHU regulates the cooling output according to the
cooling load, 0-100 %.
Cooling relay 1 is energised when the cooling load exceeds 5
% and is de-energised when the cooling load is less than 2 %.
Cooling relay 2 is energised when the cooling load exceeds 55 %
and is de-energised when the cooling load is less than 50 %.
3-step, binary
Used when cooling with two inputs controlled with three binary
steps is connected. The cooling controller of the AHU regulates
the cooling output according to the cooling load, 0-100 %.
On an increasing cooling load:
Cooling relay 1 is energised when the cooling load is above 5
% and is de-energised when the cooling load is between 40-70
%. Cooling relay 2 is energised when the cooling load is above
40 %. Cooling relay 1 is energised again (together with cooling
relay 2) when the cooling load is above 70%.
On a decreasing cooling load:
Cooling relay 1 is deenergised when cooling load is below 60 %,
it is energised again when cooling load is below 30 % and is de-
energised again when cooling load is below 2 %. Cooling relay 2
is de-energised when cooling load is below 30 %.
Settings:
Value Setting
range
Factory
setting
DX air cooler
Cooling Inactive/1 step/2
steps/3 steps, binary
Inactive
Air cooler for water
Periodic operation of pump 1 On/Off On
Periodic operation of pump 2 On/Off On
Periodic operation of valve On/Off On
Periodic operation interval 0-168 hrs. 24 hrs.
Periodic operation period 0-60 min. 3 min.
Cool