Fan Control; Railheat Control - Danfoss AK-CC55 Water Loop User Manual

AK-CC55 Water Loop

Fan control

Table 27: Fan control
Function Description
Control state Readout of the actual control state of the controller
A
Fan Actual status of output function
Fan ECO Actual status of output function
Fan pulsing Pulse operation of fan 0: No pulse operation 1: Pulse oper-
mode ation when the thermostat is cut out2: Pulse operation
when the thermostat is cut out, but only during night op-
eration
Fan period Period time for pulsing of fan
time
Fan ON cycle ON time for fan. The ON period is set as a percentage of
the period time
Fan stop high Fan stop temperature The function stops the fans in an er-
S5 temp. ror situation, so that they will not provide power to the
appliance. If the defrost sensor registers a higher temper-
ature than the one set here, the fans will be stopped.
There will be re-start at 2 K below the setting. The func-
tion is not active during a defrost or start-up after a de-
frost.
Fan stop at When blinds are closing the fans are stopped in the de-
blinds closing fined time delay in order to ensure that the blinds are
closed correctly

Railheat control

Table 28: Railheat control
Function Description
Control state A Readout of the actual control state of the controller
Dewpoint Actual dewpoint received from system manager via
network
Rail heat Actual status of output function
Rail heat power Readout of the actual rail power in %
Rail heat PWM Actual status of output function
Rail heat control The rail heat can be controlled in several ways: 0: Rail
mode heat is running all the time 1: Pulse control is used
with a timer function following the day/night opera-
tion 2: Pulse control is used with a dewpoint function.
This function requires that a signal is received about
the dewpoint value. The value is measured by a sys-
tem manager and sent to the controller via the data
communication.
Rail heat ON cycle Rail heat power during day time. The ON period is set
day as a percentage of the period
Rail heat ON cycle Rail heat power during night time. The ON period is
night set as a percentage of the period time
Rail heat period Period time for pulsing of rail heat
time
Rail heat PWM - Peri- Period time for the pulse width modulation
od time
© Danfoss | Climate Solutions | 2022.04
Values
0=Normal ctrl., 1=Hold after defrost, 2=Min ON timer,
3=Min OFF timer, 4=Drip off, 10=Main switch OFF,
11=Thermostat cut-out, 12=Frost protection S4, 14=De-
frost, 15=Fan delay, 17=Door open, 18=Melt period,
19=Modulating temp. control, 20=Emergency control,
25=Manual control, 29=Case cleaning, 30=Forced cooling,
32=Power-up delay, 33=Air heating, 34=Comp. safety cut-
out, 45=Shut down controller, 50=High S7 Brine inlet
0=OFF, 1=ON
0=OFF, 1=ON
0=No pulsing, 1=Pulsing cut-out, 2=Pulsing cut-out night F05
Values
0=Normal ctrl., 1=Hold after defrost, 2=Min ON timer,
3=Min OFF timer, 4=Drip off, 10=Main switch OFF,
11=Thermostat cut-out, 12=Frost protection S4,
14=Defrost, 15=Fan delay, 17=Door open, 18=Melt
period, 19=Modulating temp. control, 20=Emergency
control, 25=Manual control, 29=Case cleaning,
30=Forced cooling, 32=Power-up delay, 33=Air heat-
ing, 34=Comp. safety cut-out, 45=Shut down control-
ler, 50=High S7 Brine inlet
0=OFF, 1=ON
0=ON, 1=Day/Night timer, 2=Dewpoint ctrl.
Code Short name
u00 u00 Ctrl. state
u59 u59 Fan relay
U37 U37 Fan Eco
F05 FanPulse-
Mode
F06 F06 Fan cycle
F07 F07 Fan ON %
F04 F04 FanStop
temp
P65 P65 BlindFan-
Stop
Code Short name
u00 u00 Ctrl. state
x18 --- Dew point
u61 u61 Railh. relay
u85 u85 Rail DutyC %
U59 U59 Railheat PWM
o85 o85 Railh. mode
o41 o41 Railh.ONday%
o42 o42 Railh.ONngt%
o43 o43 Railh.cycle
P82 P82 RailCyclePWM
BC378540472015en-000101 | 56