OSAKA - F 200 / F 300 / TSF 200 / TSF 300 / M3 - User Manual - V.2 - PAG. 7
= ct – At time intervals of working compressor. Adding the partial
operation times every X hours working will perform a defrost. This
mode is used only in facilities positive temperature cold.
= cS – (atypical special regulation) to each compressor stop.
Programming ("D.Di" = oF, defrosting is done only on stop the
compressor).
= St – Defrost evaporator temperature. The device activated a
defrost cycle when the evaporator temperature (probe set to EP)
amounts below the value set in the parameter. "D.tS" or the end of
time programmed in rt mode (if "D.Di" = oF defrost always done by
evaporator temperature) This system can be used to defrost the
evaporator used machinery such as pumps heat (in this case
defrosting time intervals would be disabled) to ensure defrost if the
evaporator temperature reaches well below that normally results
symptoms of low thermal change from the normal operating
conditions.
= dd – DYNAMIC REDUCTION DEFROST
This parameter is used in the so-called "Dynamic Defrost" in which
the device reduces the time between defrosts if system conditions
require.
By parameter "d.dd" = 0 .. 100% (recommended 25% to 50%
values) program "%" to be reduced if the system requires cutting
the time between defrosts.
P r1
T e m p.
tim e
EP
SP
r.d
o ff
ON
C oo l
(o t)
S P+ r.d
D T0
D T1
1 °
D T2
D T3
ON ON ON
o ff o ff
d .tE
d .d i / d .S d
D efro s t
(d F )
P h a se
0 1 2 3
tim e to d efro st P h . 0 , 1
tim e to d efro st P h . 2
tim e to d efro st P h . 3
D efro s t
d .tS
Operation Example "dynamic defrost system intervals" with
reduction "d.dd" = 30% and end defrost temperature.
The system anticipates the accumulation of ice leaving the battery
in peak condition. This function operates when the output of cold is
turned on and the temperature of the camera is in the Set Point +
rd / 2, if the difference between the temperature of the chamber
and the evaporator exceeds the reference value DT0 by 1 ° C or
more, and the difference between the evaporator and chamber is
superior to the last comparison, reduces the "d.dd" programmed
value on time "d.di" or "d.Sd". To use this system it is
recommended that the "d.di" parameter enter the longest possible
time taking into account the proper functioning of the system. The
advantage of defrosting at intervals is that it allows dynamic
scheduling intervals longer than normal and defrost work so they
are system conditions that determine whether the anticipated
implementation defrost if necessary.
If the set time is too short you may not have time to act "Dynamic
Defrost".
If the system is configured correctly, you manage to avoid many
UNNECESSARY defrost and as a result ... Energy Saving and
Efficiency.
4.8.2 – MANUAL DEFROST
To activate a manual defrost cycle press the UP / DEFROST key
while the device is in operation and hold down for 5 seconds. If
conditions are optimal for defrosting will be conducted, either
evaporator probe par. "D.te" and "d.ts".
To cancel a defrost proceed to press UP / DEFROST button for 5
seconds.
The activation commands / stop of a defrost cycle can also be via
the digital input.
4.8.3 – END OF DEFROST
The defrost cycle can be time consuming if the evaporator probe
(probe set to EP) is used to achieve the temperature.
In case that it can not use the evaporator temperature, the cycle
time will be established by the par. "D.dE".
If the evaporator temperature is used, the end of defrosting is when
the temperature measured by this probe set to EP exceeds the
temperature set by the torque. "D.tE".
If this temperature is not reached within the time fixed by the par.
"D.dE" defrost does not terminate.
So if the temperature measured by the evaporator probe is higher
than that imposed in par. "D.tE" defrosting is inhibited.
The defrost cycle is indicated by the led DEF. At the end of defrost
to delay the restart of the compressor (output "ot") time set in par.
"D.td" to allow the evaporator drip.
During this delay, the LED blinks to indicate DEF status finish drip.
d .d i
T e m p .
dF
d .d i/d .S d
o ff
d .tE
ON
A
o ff
EP
d .d i
ON
d .d E
B
(N O d e fro st)
d .d i
o ff
C
tim e
Example of end of defrost: Defrost indicated as "A" ends up
reaching the temperature "d.tE", the "B" part ends at the end of
"d.dE" in terms of tempera "d.tE" is reached, the defrost "C" does
not work when the temperature is above "d.tE".
4.8.4 - DISPLAY LOCK ON DEFROST MODE
Using parameters "d.dL" and "A.Da" display behavior is
established during defrosting.
The "d.dL" parameter causes blocking last temperature on the
display before defrost ("d.dL" = on) until you reach the end of
defrost and the temperature does not exceed below the value of the
final temperature memorized or the condition ["SP" + "r.d"], or
exceeds the safety time lock "A.Da".
Also allows visualization of the indicative initials Defrost "dEF" ("dl"
= Lb) and after defrost the acronym "PdF" that indicates time
defrost finish but cold temperature not recovered to control value
["SP" + "r.d"]) or exceeds the safety time lock "A.Da".
Another possibility is to indicate the actual temperature of the cold
chamber or cabinet, during defrosting ("d.dL" = oF).
4.9 - EVAPORATOR FAN CONTROL
The evaporator fan control works for output configured as "Fn"
function in certain states of the device and the temperature
measured by the evaporator probe (probe set to "EP").
The parameters related to the fan control functions are in the " Fn"
folder.
In the event that the evaporator probe is not used or is in error, the
output configured as "Fn" is activated only in function of the
parameters "F.tn", "F.tF" and "F.FE".
Using parameters "F.tn" and "F.tF" you can set the behavior of the
evaporator fan when the control output configured as "ot"
(compressor) is switched off.
When the output "ot" is off may cause the output configured as
"Fn" continue to operate cyclically according to the times
programmed in the "Ftn" parameter (activation time fan evaporator
compressor off) and "F.tF" (time deactivation evaporator
compressor off) fan. By stopping the compressor equipment
evaporator fan can keep ignition time "F.tn", and disable the time
"F.tF" when output "ot" remains disabled. Programming "F.tn" Fn =
oF the output is turned off by stopping the output "ot" (evaporator
fan off stopped functioning compressor or fan attached to the
compressor).
Programming "F.tn" to any value and "F.tF" = oF the "Fn" output
will remain active also disabling the output ot (active compressor off
evaporator fan).
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