EQKC COMBI COOLER
FläktGroup
DC_8931GB 20180202_R0
We reserve the right to make changes without prior notice
Installation and maintenance instructions
11
OPERATION OF THE PLC
By pressing the button A, the next picture comes up.
Returning to picture 1 by pressing button B.
To change the values, press button up (+) or button down (-)
to get to the actual value. Press OK and then adjust the value
with Button Up (+) or button down (-). Press OK to store the
value. Return to Figure 1 by pressing button B.
SCREENS ON THE PLC
* (--.-) No value is displayed if the temperature sensor from
the chilled beam circuit is connected to the BMS, i.e.
when the BMS is controlling the chilled beam circuit
instead of the Cooler/PLC.
Screen 1
The screen displays operational
and alarm information (also see
the separate description of
screen 1).
CoolWater In 18.0
Input water temperature
(return temp.)
1 = Wait (s) 300
For example KM1 has a 5 min.
start delay.
(The time is counted down)
2=Run
For example KM2 is in
operation.
Screen 2
Normal running/
Condense sensor= ON
Displays the applicable setpoint.
See screens 4 and 5.
Coolwater Out1 8.0
Output water temperature from
cooling circuit 1.
Coolwater Out2 8.1
Output water temperature from
cooling circuit 2.
Screen 3
BeamWater In 15.2 (--.-)*
Input water temperature to the
chilled beam circuit.
Valve signal % 085 (---)
Control signal to the chilled
beam valve 0–100 % = 0–10V.
(Forced closing)
The text is displayed in
the event of the forced closure
of the chilled beam valve.
Screen 4
Setpoints when
Normal running
The setpoints applicable during
normal operation, i.e. when the
condensation sensor in the
room is not generating an alarm
(=OFF).
CoolWater In 18.0
Input brine temperature setpoint
(return temp.)
BeamWater In 15.0 (--.-)
Input water temperature set-
point to the chilled beam circuit.
Screen 5
Setpoints when
Condense sensor= ON
The setpoints applicable when
there is a risk of condensation,
i.e. when the condensation sensor
in the room is generating an
alarm (=ON).
CoolWater In 10.0
Input brine temperature setpoint
(return temp.)
BeamWater In 17.0 (--.-)
Input water temperature set-
point to the chilled beam circuit.
Screen 6
Run Time (h)
Total run time for each
compressor.
KM1 Total= 00048
For example KM1 has been in
operation for 48 hours.
KM2 Total= 00025
For example KM2 has been in
operation for 25 hours.
(Step 3)= 00012
KM1 and KM2. Joint operation 12 h.
Screen 7
Time: 11.25
Current time. Can be set if CP52
is to be exercised at the desired
time (12:00).
CombiCoolerProgram
2KM: V1.03
Program version
Date : 090202
Program release
Continued on next page
